bluuebunny/crossref_metadata_2025 huggingface dataset:
Formation of dense plasma on the surface of a stainless steel conductor in superstrong magnetic fields
Authors: Kokshenev V A , Cherdizov R K , Kurmaev N E
Published: November 2021

In experiments on the GIT-12 megaampere generator, the characteristics of conductors made of AISI 321 stainless steel were investigated in the microsecond regime of increasing superstrong magnetic fields. In this regime, a skin explosion of the conductor material takes place with the formation of a dense plasma and its expansion into the interelectrode gap of the vacuum transmission line. The values of the characteristic magnetic field B0 = 100 T are determined, above which there is the effect of nonlinear diffusion of the magnetic field into the conductor, and the critical magnetic field BCT ≅ 260 T, the excess of which leads to the formation of dense plasma on the surface of the massive conductor. A method is proposed for increasing the critical magnetic field on the surface of a conductor up to 1.5 times by choosing the optimal thickness of the conducting surface, and criteria for its determination are given. The effect of increasing the critical magnetic field on the surface of a two-layer sample and creating a pressure in the Mbar range until the moment of formation and expansion of explosion products of an inner conductor with high conductivity has been tested.
Effect of ion nitriding by glow discharge on the physical and mechanical properties of the plastically deformed tool steel R6M5
Authors: Vafin R K , Asylbaev A V , Mamontov D V , Sklizkov I D , Raab G I , Khairetdinov E F , Esipov R S
Published: November 2021

This work is devoted to the study of the effect of the duration of ion nitriding by glow discharge on the physical and mechanical properties of tool steel with different initial structure. We used specimens of R6M5 tool steel with a coarse-grained structure obtained after annealing at a temperature of 850°C and with a fine-grained structure obtained after severe plastic deformation by torsion discharge. With an increase in the duration of ion nitriding, the thickness of the hardened layer and wear resistance increase. The combination of plastic deformation with ion nitriding by glow discharge increases the adsorption and diffusion rate of the saturating element due to the creation of a highly fragmented and disoriented fine-grained structure and contributed to reduction in processing time.
Deposition of boron films using a discharge system with a hot boron anode
Authors: Shugurov V V , Ivanov Yu F
Published: November 2021

This work describes a discharge system for heating and evaporation of a boron powder target based on a non-self-sustained arc discharge with a filament, a hollow cathode and a hot combined anode. The measurements of the current-voltage characteristics of the discharge with a hot anode and the dependence of the anode temperature on the discharge parameters are presented. The modes of deposition of boron films have been determined.
Increasing the operation stability of the electron accelerator based on ion-electron emission
Authors: Torba M S , Doroshkevich S Yu , Levanisov V A , Vorobyov M S , Koval N N , Sulakshin S A
Published: November 2021

This paper presents the results of studying the stability of the plasma emitter of an electron accelerator based on ion-electron emission during the transition from self-sustained continuous to self-sustained frequency (up to 50 kHz) repetitively pulsed generation of an auxiliary glow discharge with a hollow cathode with an area of 20.8×103 cm2 The experimental dependences of the probability of the appearance of cathode spots on the walls of a hollow cathode per unit time on the operating modes of the plasma emitter (pressure and type of working gas, amplitude of the auxiliary discharge current) are presented.
Ethernet transmission method based on modified format for distribution domain protection system
Authors: Wu Haijiang , Chen Jinrong , Liao Feng , Li Yonghao , Zhong Shaoheng , Wang Shuaibing
Published: November 2021

This paper proposes an Ethernet transmission method based on modified format, which is applied to the distribution domain protection system. By tagging Ethernet data new identifications, the data has unique identity information in transmission. The switch replicates data and transmit it in two directions. When the ring network is destroyed, there is no data loss caused by switching the transmission direction. The distribution domain protection system realizes ring network with seamless redundancy.
Development of an FPGA-based realtime DAQ system for axion haloscope experiments
Authors: Lee M.J. , Ko B.R. , Ahn S.
Published: November 2021

A real-time Data Acquisition (DAQ) system for the CULTASK axion haloscope experiment was constructed and tested.
The CULTASK is an experiment to search for cosmic axions using resonant cavities,
to detect photons from axion conversion through the inverse Primakoff effect in a few GHz frequency range in a very high magnetic field
and at an ultra low temperature. The constructed DAQ system utilizes a Field Programmable Gate Array (FPGA) for data processing and Fast Fourier Transformation.
This design along with a custom Ethernet packet designed for real-time data transfer enables 100% DAQ efficiency,
which is the key feature compared with a commercial spectrum analyzer.
This DAQ system is optimally designed for RF signal detection in the axion experiment,
with 100 Hz frequency resolution and 500 kHz analysis window.
The noise level of the DAQ system averaged over 100,000 measurements is around -111.7 dBm.
From a pseudo-data analysis, an improvement of the signal-to-noise ratio due
to repeating and averaging the measurements using this real-time DAQ system was confirmed.
Application of groundwater modeling to predict the effectiveness of various peat dome restoration methods in Pulang Pisau District, Central Kalimantan Province
Authors: Kurniawan B , Tapriziah E R , Aryantie M H , Rahmani R , Purnomo A D
Published: November 2021

A number of Indonesian Peat Hydrological Units (Kesatuan Hidrologis Gambut/KHG) have undergone severe degradation and require an effective restoration measure to increase their ecological, social, and economic function. A peat dome located in Garung village, Pulang Pisau District, Central Kalimantan Province, was selected in this research. It aimed to apply the mathematical modeling to predict the effect of various restoration methods on the sustainability of ecological functions of peak dome in this area and reveal the advantage and disadvantages of each specified method. The groundwater model was performed in this research to simulate the influence of four different restoration methods on the groundwater level of the peak dome. The water budget and the hydraulic conductivity of groundwater assigned in the modeling were derived from the previous research done in the other village within the same Peat Hydrological Units. Meanwhile, the soil property data and the other data related to groundwater and canal properties were obtained from the field measurement at the location during the rainy season. The result of modeling indicates that the restoration method employing a combination of canal backfilling and revegetation affects the most effectively the rising groundwater level of peat dome in the model domain, followed by the individual canal backfilling and canal blocking methods, respectively. The modeling approach enables us to prove the outcome of each applied restoration method toward the area of peak dome having groundwater level lower than 40 cm. In order to be able to apply this model in the other peatland area, a model validation utilizing the field measurement of hydraulic conductivity, groundwater level, and the canal water level is necessary to be carried out throughout the year, particularly during the dry season.
The effect of environmental factors on the abundance of cefotaxime-resistant Escherichia coli in Sunter River
Authors: Efadeswarni  , Amandita F Y , Puspandari N , Aini N
Published: November 2021

The water quality of the Sunter River in Jakarta was classified as heavily polluted due to activities around the river, both domestic and non-domestic. As one of the environmental parameters for water quality, the presence of Escherichia coli (E. coli) is normally found any natural environment, and under certain conditions it can become resistant to antimicrobials due to genetic mutations. The mutated E. coli produces Extended Spectrum Beta-Lactamase (ESBL) enzymes and has a higher survival ability in antibiotic-contaminated river water, thus potentially endangering public health. This study was aimed to evaluate the effect of environmental factors on the abundance of ESBL producing E. coli and their resistance to antibiotic cefotaxime. Sampling was conducted in six locations representing the upstreams and the downstreams of Sunter River, following the Global Surveillance guidelines. E. coli strains were isolated using Tryptone Bile X-glucuronide (TBX) agar medium (with and without the addition of cefotaxime 4μg/ml) and the antibiotic sensitivity test of ESBL E. coli was conducted by performing a double-disk test. The results showed that the highest average abundance of ESBL E. coli was found in the sample taken from Sindang Station (904.24 x 104 colony per unit (CFU) / 100 mL) and the lowest was from Sunter Station (1,58 x 104 CFU / 100 mL). The results of the Bivariate Pearson correlation analysis showed that temperature, pH, and salinity were negatively correlated with the abundance of ESBL-producing E. coli bacteria.
Medical waste management at Idaman Hospital in Banjarbaru during the covid-19 pandemic
Authors: Labaty Silapurna E
Published: November 2021

Covid-19 coronavirus spreads among persons via droplets from the nose or mouth of infectious persons when they breathe or cough. These droplets land on a surface, which another person then touches. When that person then touches her eyes, nose or mouth, the virus enters the new host. The virus can also infect directly when the droplets get inhaled by someone near the infected person. Another problem in the covid-19 pandemic is hazardous medical waste, which can become another vector for a viral infection to hospital patients, medical staff, and the community around the hospital. Covid-19-contaminated medical waste consisting of used needles and infusion kits, PPE, masks and gloves, used paper and plastic food containers, bandages and tissue paper increased the waste volume at Idaman Hospital Banjarbaru by 30%, requiring optimization of waste management. This study aims to identify medical waste potentials and impacts at Idaman Hospital in Banjarbaru during the covid-19 pandemic and evaluate covid-19 medical waste management at Idaman Hospital in Banjarbaru. This study utilizes the descriptive observational method by collecting secondary data. According to the types of waste, the study indicates that medical waste management at Idaman Hospital in Banjarbaru already meets the Regulation of Environment and Forestry Minister Number 56-year 2015, including reducing and separating hazardous and poisonous waste storage, transportation, and management.
Land sustainability for public cemeteries in KHDTK Hambala: a preliminary study on the borrow-to-use forest area with a cooperation mechanism in Sumba, Indonesia
Authors: Pujiono E , Hidayat O , Njurumana G N
Published: November 2021

Deaths due to the COVID-19 pandemic in East Sumba raised the problem of limited burial grounds, so the government tried to provide a new location. The Hambala Special Purpose Forest Area (KHDTK) has a potential land to be used as a burial site by MoEF Regulation No.P.27/2018. The study analyzed the suitability of burial grounds using a GIS-based multi-criteria approach. Criteria and indicators cover the legality (license status of forests, policies), management (master plans, detailed plans), technical (human resources, infrastructure), socio-economic (pandemic, grave needs, economic impacts, culture, conflict), and ecological (topography, land cover, distance to water sources and settlements). A multi-criteria evaluation of the proposed use of KHDTK covering an area of 17 ha resulted in three scenarios of the burial land suitability map, namely the ‘strict scenario’ covering an area of 1.5 hectares; moderate scenario covering an area of 6.5 hectares, and ‘scenario loosely’ covering an area of 14.2 hectares. The third scenario as a reference for managers and stakeholders is lend-use of Forest Areas for burial grounds by government cooperation mechanism.
Comparative Analysis of Learning Curve Models on Construction Productivity of Diaphragm Wall and Pile
Authors: SaravanaPrabhu G , Vidjeapriya R
Published: November 2021

In the analysis of construction operations, Learning Curves (LC) are considered one of the most important factors that determines the on-site variation in the productivity, which is usually considered in the construction projects during the estimation and planning stage. This research attempts to assess the suitability of LC models for the analysis of the learning phenomenon using productivity data for fairly complicated construction operations concerning the Diaphragm Wall and Pile Construction process from large-scale construction projects. In this study, the role of different LC models (i.e., Wright or Straight Line, Quadratic, Cubic, Knecht or Combined Exponential Log-linear, Stanford B) is investigated by the comparison of their outcomes through the utilization of cumulative productivity data of the activities involved in the Diaphragm Wall and Pile Construction process. The two main research objectives are (i) the investigation of the model which is the best bit for the historical productivity data of the completed construction activities (ii) an endeavour is formed to work out which model predicts the future performance better. The best suited LC model is predicted based on the least deviation from the yielded results of each model with respect to the actual construction data. Analysis of the cumulative average productivity data predicted that the Knecht or Combined Exponential Log-linear Model best fits both the complete Diaphragm Wall and Pile Construction Process in both the cases of fitting Historical data and in predicting future performance.
Identification of groundwater recharge potential zones in a study region of South Kerala
Authors: Chandran Lini R , Ardra V , MuhammedIrfan Y , Sruthy M S , UnniNair V S
Published: November 2021

Groundwater is considered as a precious natural resource which serves as the main source of agriculture and domestic purposes. Kerala state is blessed with around 3000mm rainfall annually because of two prominent monsoon. But the available water is insufficient to meet the demand of people. Increase in population and water demand cause threat to overall water balance. Ground water resource must be managed well to overcome these problems. Ground water recharging is a major requirement for sustainable utilization of water resources. It also becomes highly relevant to assess the water recharge zones and to preserve water quality. This study proposes identification of suitable water recharge sites in Karamana river basin, Thiruvananthapuram, Kerala. Karamana river supplies majority of drinking water in Thiruvananthapuram district. Since its quality is deteriorating day by day, appropriate locations for recharging groundwater is identified using GIS technique. Various thematic maps like soil, slope, drainage, geomorphology and land utilization that affect the groundwater recharge is integrated and weighted overlay analysis is adopted to find the groundwater recharge potential map. Weights are assigned using Analytical Hierarchy Process (AHP) by constructing a pairwise comparison matrix. The result depicts the groundwater recharge potential zones which is divided into very high, high, moderate, low and very low potential areas.
Break even analysis & response of longer span frames with or without post-tensioned beams in multipurpose hall
Authors: Patkar Aniket , Mukkawar Santosh
Published: November 2021

In this paper analyzed the RC a nd PT Beam against variation in the clear span length of the beam. This work includes the design and estimate of Cost/Beam from 5m span up to 15m span length of the beam. Also, The response of the frame following two variation in its modelling. Initially, The primary model consists of a conventional RCC frame with all beams and columns as RCC. The secondarily model considers peripheral beams as RCC and interior beams with PT. Such as ETABS software used to designed RC beam element and ADAPT-PTRC used to designed PT beam element. However it has been note that variation of cost with respect to the span of beam where the break-even point between RCC and PT technique is approx 7m Span. Also the control on deflection of beam by restrict the depth of beam by using unbonded Post-tensioned prestress concrete beam method. There is very good understand all aspects PT beam better than as compared with to RC beam in deflection against longer span length of beams. This paper gives suggestion about to reach a decidedly conclusion regarding which technique is superior over one another.
Behaviour of Multi-Storey RC Building Under Seismic Load Using Pushover Analysis
Authors: Abdullah Malek , Kulkarni Preeti
Published: November 2021

The current work investigates the behavior of a multi-story RC building under seismic load using pushover analysis, employing two (codes IS code and ACI code) where the special moment resistant frame (SMRF) building is located in a medium-seismicity region of India in Pune City. The G+8 to G+20 storeys of the RC buildings have been chosen for this purpose. The structural analysis programmed SAP2000.V20 was used to create a finite element model of the structure. The different models (5 models) of RC buildings were initially designed to resist seismic loads using the responses spectrum analysis method to determine the RC building’s characteristics. Pushover analysis is used to predict potential weak areas in the structure by tracking the sequence of damages of each and every member in the structure and determining the weak joints (critical joints) in the RC building. and compare the two codes (IS code and ACI code)
Design of Urban Storm Water Drainage System using GIS and SWMM Software
Authors: Palaka Rambabu , Sri Charana Reddy P , Viharika G , Pravalika G
Published: November 2021

The rapid growth of villages and towns affecting natural drainage channels. Inundation of low-lying areas is a common phenomenon especially during rainy seasons in many localities of Narsapur town. Narsapur is considered a census town as well as a municipality situated in Medak district, Telangana State. With the increased demand for a proper drainage system, the Municipal Authorities decided to re-design the Stormwater Drainage System starting with mapping the existing road network and drains. The Narsapur town has 15 revenue wards. Considering the Topography of the town, the entire town was divided into six zones. In this study, the Central Zone of town covering 4 Wards (13, 14, 15, and 8 Partly) is considered for investigation and design of stormwater drainage systems. The entire zone is completely urbanized, and frequent inundation is observed during moderate to heavy rainfall events due to congested and improper drainage disposal system. The study is carried out in five phases viz. Mapping of Road Network, Obtaining Elevations, Mapping Drainage Network, Computation of Peak Discharge, and Design of Stormwater Drainage System. In this study, EPA-SWMM Software is used to build a Hydraulic and Hydrologic Model to analyze the existing drainage system and re-design the stormwater drains to safely discharge flood water without causing inundation in low-lying areas. To validate the results, Manning’s Flow Equation is used to compute the flow carrying capacity of drainage channels.
Utilization of Bitumen, Aggregate and Wax with Rubber Tyre in a Flexible Pavement
Authors: Mohan Rajat , Gupta Aakash , Gaur Kshitij
Published: November 2021

With continuous wear and tear actions of rubber tyre on roads, a pile of waste rubber gets accumulated every year and it is posing severe threats to the environment. Due to high temperature in the summers, the road tends to become brittle, which may cause separation of binder in the bituminous road causing heavy cracks, so usage of wax tends to reduce the formation of cracks and improve the flexibility of road. This study aims to examine the effects on properties of the bitumen-aggregate mixture when the aggregates are partially replaced by similar sizes of waste rubber tyre particles and bitumen in the mix are partially replaced by a crumb waste rubber tyre, with partial addition of wax content in the bituminous samples. For this purpose of testing the suitability of using rubber waste in road pavement, Marshall Stability test is conducted on several bituminous mixtures. Varying percentages of rubber tyre, such as 0%, 5%, 10% and 15%, are used with different percentages of bitumen content (4.0, 4.2, 4.4, and 4.6), and varying percentages of paraffin wax (0-5%) is also added in the specimen with rubber and bitumen. This is utilized in obtaining the optimum content of bitumen required for best suitability of flexible pavement as well as to assess the durability and strength of a pavement. This study is performed on various mixtures, for the values of bulk density, air voids, stability value and flow value. The studies show that bitumen content corresponding to the maximum stability value and maximum bulk specific gravity in bituminous mixture, indicating the optimum bitumen percentage that can be replaced with crumb rubber tyre. This paper discusses the partial replacement of both aggregate and bitumen in the bituminous mixture, containing some percentages of paraffin, which can help in improving the serviceability level and assists in enhancing the flexibility and cohesion of road to resist heavy loadings of vehicle.
“Effect of floating columns on buildings subjected to seismic forces”
Authors: Pawar Neha , Dabhekar Kuldeep , Patil Prakash , Khedikar Isha , Jaju Santosh
Published: November 2021

In Recent Trends, buildings are planned to fulfill their architectural and functional requirements but sometimes this creates complexity in its structural strength. One such element is the floating column. It is used to boost Floor Space Index. The Earthquake forces developed at different storey need to be carried down by the shortest path. Discontinuity in the load transfer path leads to poor seismic performance of the structure. Hence as per IS: CODE-1893:2016 clause no-7.1, the Construction of Floating Column is restricted. But there is no limit to research work. The purpose of this research is to analyze the structural irregularity occurring due to floating columns and also to find out the optimized solution to decrease the risk due to earthquake excitation. For Simplicity, the focus of this study is limited to symmetrical G+8 Structure. Finite element Based ETabs software has been used for the analysis. Response spectrum analysis was done in the software. Total ten models are considered with different conditions and their results were compared in terms of Storey displacement, Storey drifts, Base Shear and Overturning moments. All results are compared with the conventional building.
Estimation of Discharge and Total Water Level at Yedgaon Dam using Data Driven Techniques
Authors: Kulkarni Preeti S. , Londhe Shreenivas , Sainkar Nikita , Rote Sayali
Published: November 2021

A reservoir operation planning using Data driven Techniques is gaining its momentum in hydrological area with good prediction and Estimation capabilities. The present work aims at using the 5 years data of Water Level to estimate the discharge and water level at the Yedgaon dam which is like pick up weir having its own yield and storage. It receives water from Dimbhe (though DLBC), Wadaj (through MLBC), Manikdoh (through river) and through Pimpalgaojoge (through river), in the Kukadi project of Maharashtra State, India. 4 different models were developed to estimate the water level using the Data Driven Techniques: M5 Model Tree, Support Vector Regression, Multi Gene Genetic Programming and Random Forest. The Accuracy of the developed models is assessed by the values of coefficient of correlation, coefficient of efficiency, mean absolute error and root mean squared error and comparison is done between actual values and Predicted values. The results indicated that the MGGP model was superior as compared to other techniques with correlation coefficient as 0.86 with an advantage of a single equation to estimate the water level.
Carbon footprint of a multi-storied residential building during the construction process
Authors: Bhorkar M P , Choudhary P , Chawhan A , Bijwe A , Devgade K
Published: November 2021

Construction Industry indicates development of the country and it helps in the economic growth which adds productivity and quality of life of citizens. During the manufacturing and the construction processes, there is use and combustion of fossil fuels which results total 39% of total carbon footprint. So, studying carbon footprint for construction companies becomes very important. Many different studies are carried out with giving number of alternatives to reduce the amount of carbon footprint. However, this research is focused mainly on multi-storeyed residential building in renowned city in India, shows the carbon emissions produced by a construction activity right from the material production to the actual execution process. Different Greenhouse gases contributing carbon footprint were also studied & incorporated. Various activities accounting to emissions were listed and their carbon footprint value (in the form of Carbon Dioxide equivalent) was calculated by bottom-up method. The manufacturing of various construction materials and usage of electricity during execution phases of a building causes very bad impact on the environment. The greatest contributors of the carbon footprint are onsite electricity use and building materials manufacturing. Therefore, use of green concrete, renewable energy, prefabricated construction materials and low emission construction equipment & vehicles can help in reducing the values of Carbon Footprint by the construction industry.
Deterioration of concrete sewers
Authors: Naseer Aliya , Tantray M A
Published: November 2021

The corrosion and maintenance of concrete sewers have always been an area of social as well as financial priority. The corrosion of the concrete sewer system is related to biodegradation of concrete which led to formation of sulphuric acid. The sulphuric acid so produced affects the life span of structure by causing expansion which eventually led to collapse of structure as a whole. The damage is further amplified in case of splashing of waste waters in the sewer network as compared to stagnant waters. In order to access the degree of damage an experimental program was carried out. This paper presents the results of degradation depth of concrete subjected to stagnant and flowing condition of sulphuric acid solution (H2SO4) made with different the water-cement ratio and concentration of sulphuric acid. For this purpose, concrete cubes with various water-cement ratios were made. These cubes were exposed to sulphuric acid solution of pH 1,2,3 and 4. The results revealed that surrounding conditions play one the important role in deciding the erosion depth in addition to water cement ratio. From the experiment it was also affirmed that erosion depth depends on the concentration of the acidic solution.
Comparative analysis of vertical irregularities on high rise structure considering various parameters
Authors: Hiwase Prashant , Taywade Vipul V , Siddh Sharda P.
Published: November 2021

Now, every day tall constructing structures constructed around the goal of residential and industrial cause etc. Layout of tall buildings both earthquake as well as wind loads got to be take into considered. An irregular structure, failure of structure starts at a point of its weakness and those weaknesses comesups withs separation of mass, stiffness and geometry of that models. The structures having this kinds of discontinuity are called Irregular structures. (H, J, & darshan, 2017) [2]. For example,Structures with the soft storey were the foremost remarkable fallen structures. Therefore, the impact of vertical alignment within the seismic structure of buildings is very significant. The changes in durability and size provide powerful features of those structures that are completely different from the standard structure. For this present evaluation ‘ETABS’ software package is employed. All Reinforced Concrete structural elements are follows as per ‘IS 456:2000 (Plane and Reinforce Concrete-Code of Practice, Bureau of Indian Standard)’. Seismic load follows with respect to IS 1893:2016 along with self-weight of modelles for analysis of the structure. Here 2 kinds of buildings of (G+15) were created one is regular structure and alternative one Mass irregular. To observe, Effect of lateral in both buildings using Seismic load and to check the results,most of maximum displacement for various models and various parameters.
Assessment of Concrete Filled Steel Tubular Members: An Experimental Review
Authors: Bembade Nikhil S , Tande S N
Published: November 2021

In this world with rapid development, durable and fast construction techniques lead to the invention of composite materials that are robust and advantageous over conventional materials. Recently invented Concrete-filled steel tubular members are the composite members used in civil engineering works to replace conventional steel and concrete members. This paper deals with an overview of the experimental performance of various types of composite members such as columns, short columns, stub columns, beam-columns, and slender columns deals with various loads such as axial compression, flexural load, cyclic bending, long-term sustained load, torsional load, and impact load. Effects due to the variation in the parameters like steel and concrete strength, diameter to thickness ratio, axial load level, shapes of tubes of these composite members on load-carrying capacity, flexural stiffness, ductility, torsional capacity, and cyclic performance of these members are discussed in this paper. The future scope is mentioned for study related to these composite members in the paper.
Seismic Response of Performance Base Designed Building : A Review
Authors: Sheikh Sarosh , Sanghai S S , Nardey Abhijeet
Published: November 2021

A review on Performance Based Plastic Design method (PBPD) for RCC building has been presented in this paper with detailed manner. The first is the study of Performance Based Plastic Design method relating with IS code method. And then secondly review includes the research gap that is to apply this method on Irregular Buildings and to observe the efficiency of Design and Cost analysis comparing to IS code recommendations. When a Structure is designed by IS Code (IS 456: 2000) recommendations, it satisfies the strength as well as serviceability standards. But when an earthquake hits the structure, it leads to collapse which leads to loss of life as well as property. A Recently developed PBPD method can be a promising & efficient seismic design approach as it counteract total collapse of structure. This method is becoming popular due to its total collapse prevention. The paper addressed the relevant examination of provisions as specified in the appropriate design standard and software-based finite element analysis conducted by various authors, as well as a review of the problem, in order to reach a meaningful conclusion for the study. Also, a suggestion for the scope of future development is to study the Design as well as Cost efficiency of Performance Based Plastic Design of Various Irregular RCC buildings which will be a new or important aspect of the study. Despite the fact that fewer papers have been published in this area than in others, this report covers a broad range of research efforts and progress into the New Performance based Plastic Design method & seismic behavior of irregular buildings, demonstrating the field’s growing interest.
Comparative Analysis of Structure with and without Seismic Load
Authors: Patil Abhishek K. , Solanke Adarsh P. , Dabhekar Kuldeep R. , Khedikar Isha P. , Agrawal Rahul , Rajput Pratik P. , Chavan Pranav V.
Published: November 2021

Engineers are mostly adopting complex non-linear methods to research multi-storey residential apartment structure to withstand earthquake forces. This paper uses much simpler Equivalent Static method to analyse G+5 storey structure to repel earthquake forces using Staad pro software. The seismic analysis is further compared with non-seismic analysis of an equivalent structure using dead load + super load combination. it had been observed that the seismic results obtained consisted of significantly increased maximum moments and shear forces than the non-seismic analysis From past earthquakes it is proved that many of structure ar completely or partly broken because of earthquake. So, it’s a necessity to figure out unstable responses of such structures. The main aim of the present work is to make a comparative study of seismic and non-Seismic structure. The analysis was performed as per the specification of IS codes IS 1893, IS 875, IS 456:2000.
Review and analysis of roadway crash prediction studies on urban roads under heterogeneous traffic conditions
Authors: Sony Bodanapu , Rao Ch. Hanumantha
Published: November 2021

In recent decades, pre-predicting the roadway accidents is essential for real time traffic incident management that effectively minimizes the environmental pollution, traffic congestion and secondary incidents. Currently, the traffic data are available in thousands of public and private datasets and also generates terabytes of data each year. Though, it is infeasible to manage the huge datasets by utilizing traditional software and hardware. It is therefore essential that an automated system to predict road accidents is developed. The present review paper investigates the researches done on road accident prediction, particularly for urban roads under heterogeneous traffic conditions. It also explores the problems faced in existing works by researchers. This review paper helps researchers achieve a better solution for the current problems faced by heterogeneous traffic conditions when it comes to urban road accident prediction. The findings demonstrate that the operating speed and the disparities between the speed restrictions and the operating speed are the key factors influencing the accident frequency rate.
An Experimental Study for Optimal Usage of Powdered Glass in Concrete as a Cement Replacement Material
Authors: Khadeer Mohammed , Singh Umesh K
Published: November 2021

The adverse effect of greenhouse emissions like CO2 leads to global warming. As per statistics, the global contribution of the cement manufacturing industry to greenhouse gas emissions is nearly 7%. To address these effects on the nature of the environment associated with cement manufacturing, it is necessary to explore sustainable binders for manufacturing concrete. Hence, extensive research is being conducted in the recent past to replace cement with various materials including waste generated from various sectors. Further, the replacement of fine aggregates and cement in concrete with various proportions of powdered glass is an engrossing topic among researchers for over a decade. The present study aims to the optimal use of glass powder in concrete as a replacement for cement and to enhance the characteristics compressive strength when compared to conventional concrete. Cement was replaced by various percentages of fine glass powder ranging from 10-50 % at an increment of 10%. The concrete cube specimens for 7 and 28 days were evaluated for their compressive strength after curing period, with that of conventional concrete. From the acquired results, it is perceptible that glass powder can be a suitable replacement for cement.
Controlling Seismic Excitation in the RCC Building with a Tuned Mass Damper
Authors: Kalamkar Avinash , Pitale N.H. , Patil P.B.
Published: November 2021

The use of multiple tuned mass dampers (MTMDs) to monitor earthquake response of tall buildings is investigated. The MTMDs are located in three locations in the reinforced concrete (RC) structures. The time domain seismic analysis is performed on Etabs Software using imperial Earth movement used to analyze contemporary history. The performance of the MTMDs is compared to that of a TMD on the top floor, a TMD on the third and fifth floors, a TMD on each floor, and no TMD. The base shear vs time and displacement parameters were examined, and it was determined that the MTMDs on each floor are better for the building’s seismic response. Furthermore, it has been discovered that MTMDs are more powerful than STMDs.
Strengthening of Subgrade Clayey Soil in Road Construction using Fly ash and Coir Geotextile
Authors: Sri Ram Karthik P , Chamberlain K Shyam
Published: November 2021

The best handicap for a carried-out community of road structures in growing international locations like India is the restricted monetary assets accessible to construct roads the use of traditional methods. By the usage of nearby substances inclusive of neighbourhood grounds for the constructions of the lower layers of the pavements (in precise the subgrade), the development expenses can be extensively reduced. 20% of the land in India is clayey and is expansive in nature. These lands are observed to be steeply-priced to construct and to maintain roads. The use of coir fibre substances in the discipline of civil engineering has led to new methods for stabilisation of soils in particular. A coir fibre (CF) is an herbal cloth that is broadly handy in Coastal India. A certain find out about was carried out in this paper about enhancing the stability, energy and sturdiness of soil clay mixed up with fly ash and coir fibre mat. The sample of the soil used was from the excessive clay region in Andhra Pradesh. The stabilisation was performed with classification C fly ash and grade H2M9 coir mat. The plasticity of clay fly ash mixes is decreased as fly ash content material is increased. Adding fly ash consequently lessens increasing soils and will increase their working-ability via a colloidal response and adjustments in grain size. The supplementation of fly ash led to full-size increase in soil CBR. The consequences exhibit large enhancement in compaction and CBR of composite containing clay, fly ash and coir mat. The CBR value for virgin Andhra Pradesh clayey soil was 6% which improved to 12% for optimal fly ash (15%) –clayey mix. The CBR value was determined through placing coir mat at more than a few depths in ideal fly ash clay mix. The most CBR value acquired was 44% for coir mat positioned at mixture of h/4th and h/2th depth from pinnacle in standard fly ash - clay mix.
Modelling and Optimization of the Impact Resistance of Graphene Oxide Modified Crumb Rubber-ECC Using Response Surface Methodology
Authors: Abdulkadir Isyaka , Mohammed Bashar S. , Liew M. S. , Wahab M. M. A.
Published: November 2021

This paper presents the findings of an investigation on the impact resistance of graphene oxide (GO) modified rubberized engineered cementitious composite (GOCRECC) and the development of response-predictive models and optimization using response surface methodology (RSM). The input factors considered as the independent variables were the GO at 0, 0.02, 0.04, 0.06 and 0.08% addition by cement weight and crumb rubber (CR) at 1, 3 and 5% replacement of fine aggregate. Fifteen mixes having different quantities of input factors were used for the determination of the initial (E1) and ultimate (E2) impact energy using the ACI 544. R drop weight impact test method. The results showed that impact resistance of the GOCRECC mixes increased with increasing contents of the input factors. Response predictive models for E1 and E2 were developed and found to have high R2 values of 78 and 93% respectively, after validation using the analysis of variance (ANOVA). The optimization performed yielded an optimal amounts of the input factors of 0.0347 and 5% for GO and CR respectively at a desirability value of 74%.
Comparative Study of Seismic Acceleration Amplification Models for RC Frame Structures
Authors: Agrahari Ravinder Kumar , Pathak K.K.
Published: November 2021

As the current aspect, the nonstructural components (NSCs) linked with the structures are more affected during the seismic motion. It causes not only loss of the economy but also affected life. The various codal provision has been available for minimizing the damages of primary components, but for NSCs, a minimal requirement is functional. So that more investigation is required for understating the behavior of NSCs during the seismic motion. The research aims to understand the behavior of acceleration demand on NSCs in a building. Structures subjected to inertia forces due to earthquakes experience damage of nonstructural components (NSC). The inertia force acting the NSCs are related to acceleration amplification factor. For obtaining the peak horizontal floor acceleration with respect to tectonic ground motion, these factors are used. In this paper, mathematical models of the acceleration amplification factor defined as the peak floor acceleration with respect to peak ground acceleration, given by previous researchers, has been compared. For this 2,4,6,8 and 10 storey moment-resisting frame models considering 29 ground motion data ranging between 0.1g to 0.2g, is analyzed using linear time history method. The supports of the models are considered fixed. The ETABS software is used for the analysis of the models. To analyses the models, the modal mass participation ratio plays a significant role. ASCE 7-05 defines that the structure should be investigated and designed when the model mass participation ratio is equal to or more than 90 per cent. Based on the results, a comparison of the reported models is made. There is a strong need for further research to refine the models for the realistic prediction of acceleration amplification factor.
Torsional Vibration Control of a Structure using Fluid Viscous Dampers
Authors: Ajay Lingala , Anil Kumar M.
Published: November 2021

Damping plays a major role in design of structures resistant to earthquakes. The damping reduces the effective of the structure when they are assigned to lateral loads by energy dissipation. The number of dampers is available and in use today. Most of the dampers usually isolate the super structure from the substructure, dividing them in order to hamper the flow of vibrations into the superstructure. This classification is termed as base isolation techniques. While, the rest of the damping techniques, dissipates the oncoming vibrations on the superstructure itself and minimizes the damage to the superstructure. In this present study, Fluid Viscous Dampers (FVD) are used extensively over types of dampers. The structure endures two load types, the vertical loads and the sidewise loads, and conveys to the foundation. In order to have earthquake resistant structures, FVD have been used. In the present study, Dissymmetric Buildings are analyzed with and without Fluid Viscous Dampers. The software ETABS 2016 was used. Using Time history analysis in ETABS software, the RC building is considered and the structure is evaluated and connect with and without FVD.
Studies on Impact Resistance of Self-Compacting Concrete with mechanically treated Recycled Coarse Aggregate
Authors: Nune Srikanth , Dakshina Murthy N R , Seshagiri Rao M V
Published: November 2021

Self-compacting concrete (SCC) is an extraordinary type of concrete that is extremely flowable and spreads into the formwork without the need of external vibration. In order to attain self-compatibility SCC obliges extensively surplus quantity of fine particles as compared to conventional concrete. Recycled Coarse Aggregate (RCA) obtained by crushing of old concrete is used in the investigational analysis. Nan-Su method is used to design the SCC mixes A and B (M35 and M45). The current experimental study aims to evaluate the impact energy of Recycled Coarse Aggregate (RCA) based self- compacting concrete by replacing with Natural Coarse Aggregate (NCA) (25%, 50%, 75%, and 100%) in unprocessed and processed states for various number of revolutions (500R, 1000R, 1500R, 2000R). Tests were carried out with a constant mass of hammer (16.38 kg). The impact energy determined for the Mixes A and B is compared with respect to replacement level and processing of RCA. The impact energy calculated is maximum for mix-A (1500 and 2000 revolutions) and mix-B (2000 revolutions) at 75% and 100% replacement of RCA respectively. From the experimental results of obtained Coefficient of Variation (CoV) with respect to processing of aggregate, in both the mixes it is observed that RCA in unprocessed state and processed state (1500R) has good Coefficient of Variation. Comparing the results of Coefficient of Variation with respect to replacement level of aggregate it has a very good CoV at 25% replacement level of RCA for both the mixes.
Cyclic load Analysis of beam column joint using ANSYS
Authors: Wasnik Pranali , Sanghai Prof. Sanket , Pawade P.Y.
Published: November 2021

Work on FE analysis with the addition stirrup bar at different spacing in beam under the cyclic loading for strengthen the joint. The most important part of developing the beam column joint when cyclic loading take place in seismic zone. Six samples with different characteristic are chosen, design as per ductile detailing IS 13920-2016 and non-ductile detailing as per IS 456-2000 and design on ANSYS. The result shows that addition of lateral reinforcement have more shear strength. From the all sample the shear strength is high in addition of stirrups at L/3 scaled and L/4 scaled.
Assessment of Antenna Mounting Building Structural Strength using Microtremor Analysis
Authors: Gullapalli Venkata Lakshmi , RaghuNandanKumar R , Reddy G R
Published: November 2021

Any satellite tracking ground station requires fully steerable dish shaped antenna for fixed satellite services. Antenna foundations require special consideration, because they transmit dynamic loads to soil and foundation system, in addition to static loads due to self-weight of foundation, antenna and its accessories. Antenna foundations are of ground foundation or roof top i.e on buildings based on Radio Frequency requirements. To install antennas on existing building, the building should have required strength. To assess the building strength, building natural frequency and damping ratios are determined using Microtremor recorded data. For rotating Antennas, the required building frequency should be more than 8 Hz to avoid resonance effect of antenna structure natural frequency with servo frequency. In this study, the data is collected for building located at National Remote Sensing Centre, ISRO, Shadnagar, Hyderabad by mounting sensor at 3 locations of building. The data collected is analyzed using View 2002 software. FFT analysis is carried out to identify predominant natural modes and frequencies of the Building.