cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.12755/isec.res.2018.72
title: BEHAVIOR OF NONSTRUCTURAL COMPONENT SUPPORTED BY HANGER BOLTS UNDER SEISMIC EXCITATIONS BY SHAKING TABLE TEST

description: During the Great East Japan Earthquake of March 2011, nonstructural components, such as pipe systems, ducts, cable racks and ceilings were severely damaged while main structural members in the building were not damaged seriously. Pipes, cable racks, apparatus and ducts' hanger bolts were ruptured causing the equipment to fall down. Because of these damages, buildings cannot be used for a long period of time and one person was killed by pipe's falling in Japan. In this study, the behaviors of nonstructural components are investigated by conducting shaking table tests to verify the cause of damage. More specifically, damage to hanger bolts is investigated by simulating its rupturing mechanism through shaking table test. To simulate the real installation condition of nonstructural components, apparatus-duct-pipe system supported by hanger bolts is selected as specimen. Roof floor response wave at the actual 5-story steel building under the Great East Japan Earthquake and sweep wave are used for the input waves. The maximum response acceleration was about 4 G in X direction under response wave 75% and the damage occurred at the metal fitting which is the connection part between braces and hanger bolt. And without installing braces, the upper hanger bolts at the fixed supporting part were ruptured easily since the natural frequency of the specimen closed to those of target building during excitations and the response became huge.
DOI: 10.12755/isec.res.2018.73
title: BEHAVIOR OF REINFORCED CONCRETE SLABS UNDER ACCIDENTAL IMPACTS

description: Loads resulting from activities such as rock fall, heavy drop weights (for e.g. equipment's, heavy machines during installation), missile and aircraft interaction with slabs may results in loading intensity which have higher magnitude as compared to static loading. Based on the velocity of the impacting object at the time of contact, these activities may result in impact loading. Therefore, slabs designed should provide resistance to these accidental loading during their entire operational life. In this study, a dynamic non-linear finite element analyses were conducted to investigate the behavior of the reinforced concrete slabs subjected to high-mass low-velocity impacts. For this purpose, initially an already published impact test results were used to validate the numerical predictions. Following validation, a study was conducted to investigate the influence of the impact velocity on the behavior of the reinforced concrete slab. Based on the numerical investigation, it was found that the velocity of the impacting object has a significant influence on the behavior exhibited by slab under impact loading. Furthermore, it was also found that the behavior of slab under impact is both local and global. Local behavior is associated with the damage caused at the contact area of the slab and the impactor, whereas global behavior refers to the overall deformation of the slab when stress waves move away from the impact zone and travel towards the supports.
DOI: 10.12755/isec.res.2018.74
title: Bond Stress-Slip of Strand in Prestressed Concrete Sleepers

description: Continuous vertical force on sleepers gradually degrades the bonding between the concrete and the prestressing strands. In particular, the vertical wheel loads can be significantly amplified due to irregularities on the wheel or on the track. This can eventually result in cracking or splitting of concrete along the strands leading to the structural failure of concrete sleepers. The bond between strand and concrete is an important factor which can directly or indirectly influence the cracking and splitting failure of the sleeper. This paper reports a series of pullout tests undertaken on specimens with 85 MPa concrete (nominal strength) and 7-wire prestressing strands replicating typical prestressed concrete sleepers produced in New Zealand. The results are discussed and compared in terms of the loads causing the first strand slip and also the bond stress slip relationship. The results show that longer water curing time does not necessarily increase the bond between strand and concrete in prestressed concrete sleepers. This behaviour can be attributed to the effect of shrinkage and the trade-off between strength and shrinkage influenced by water curing. The obtained results can contribute to determining optimum sleeper curing time to achieve required strength and bonding and is valuable for concrete sleeper manufacturers where curing process is associated with considerable cost and logistical issues.
DOI: 10.12755/isec.res.2018.75
title: BUILDING INFORMATION MODELING (BIM) ADOPTION AND IMPLEMENTATION: INTERACTION BETWEEN BIM USERS AND NON-BIM USERS

description: The research introduces the combination of Diffusion of Innovation Theory and Activity Theory to investigate the process of adoption and implementation of BIM in the construction industry in Vietnam. Data was collected from three large main contractors as they are considered as innovation leading organizations. Qualitative research was employed using semi-structured interviews to analyze respondents' perspectives of their daily BIM activities. Main informants include senior managers, BIM team members and site staff. Key findings were the factors affecting the decision of BIM adoption of senior managers (i.e., non-BIM users), the factors affecting BIM implementation of site staff (i.e., BIM users), and the contradictions emerging when senior managers mandate to use BIM, and employ a BIM team as the change agent for instruction and collaboration on the construction site.
DOI: 10.12755/isec.res.2018.76
title: Business Survival Rate in Construction Industry in Relation to Other Industries: A Comparative Analysis

description: Construction industry is one of the largest industrial sector in the United States that employs close to ten million people and makes a high contribution to the growth of the country's economy. In spite of the huge impact that the industry has on the US economy, construction businesses have a hard time surviving in the market, with construction companies having the least survival rate among all the industries. Fiveyear survival rate of construction companies is one of the lowest compared to other industries. This study aims at providing evidence that the construction industry suffers the most as compared to the other industries in terms of business survival rate. A General Linear Model was used for statistical analysis. Results show a significant difference between the construction industry and other industries providing evidence that the construction industry businesses have the least survival rate.
DOI: 10.12755/isec.res.2018.77
title: CALIBRATION OF RUTTING AND ROUGHNESS DISTRESS MODELS OF HDM-4 FOR DEVELOPING PAVEMENT MAINTENANCE MANAGEMENT

description: The Highway Development and Management model (HDM-4) is a tool developed by the World Bank to aid highway administrators and engineers in the process of decision making for preparing of road investment programme and determining the road network maintenance strategies. HDM-4 essentially models the interaction between the traffic volume, environment and pavement composition to predict the different kinds of distress that develop in pavements over time. Since distress is caused due to different conditions and progresses at different rates, therefore it is necessary to calibrate the HDM-4 model as per the local conditions. The aim of the study is to calibrate the HDM-4 pavement deterioration model in terms of rutting and roughness for the urban road network of Patiala (Punjab, India). In our study, we select 15 road sections and group them based on varying traffic and pavement age. The pavement condition data, which was measured starting from 2012 to the end of 2014, is fed as the input to the HDM-4 distress models. The calibration process is performed using statistical analysis between the observed and predicted value of the distress by keeping minimum Root Mean Square Error (RMSE) and maximum R-square (R2 ). The determined calibration factors are validated and further used for developing pavement deterioration models which prove to be helpful in building a Pavement Maintenance and Management system for Patiala.
DOI: 10.12755/isec.res.2018.78
title: CASE STUDIES: DISPUTE RESOLUTIONS SELECTION IN CONSTRUCTION

description: Disputes simply cannot be prevented all the time in the construction industry. As such, common dispute resolution systems such as negotiation, mediation, arbitration and litigation are widely used. Compared to litigation, negotiation and mediation have high popularity owing to their low cost and faster duration to dispensation. However, proper selection of dispute resolution techniques becomes very critical in real business practice. In this article, a numerical method using pairwise comparisons and the analytic hierarchy process are used to discover the most appropriate method evaluated against specific selection factors. Eight major selection factors are used, and an importance scale is assigned to weigh each factor, followed by a pairwise comparison. The rationale for selection of factors is explained. Final scores of the effectiveness of each dispute resolution technique are calculated for six cases that are meaningful in the construction industry, thereby providing a practical guideline and system to disputants for selecting a suitable dispute resolution method for their specific case.
DOI: 10.12755/isec.res.2018.79
title: CHALLENGES OF FRONT-END LOADING IN CONSTRUCTION PROJECT DELIVERY IN SOUTH AFRICA

description: Adopting a good pre-project planning or front-end loading method during the early stage of construction is important to the success of the project. However, most construction projects have failed as a result of poor project planning at their early stage. Based on this knowledge, this study assessed the challenges facing the use of front-end loading. The study adopted a quantitative survey approach and questionnaire was used to harness information on the objective of the study from construction professionals in Gauteng Province, South Africa. Data gathered were analysed using statistical tools such as percentage, mean score and standard deviation. Findings revealed that the major challenges affecting the use of front-end loading are inability to identify importance of the process, unreliable information during early project stages, insufficient time to thoroughly carry out the front-end loading process, indecisiveness or lack of knowledge by the client, and lack of structured project team during inception phases of the project. It is therefore recommended that the construction clients be made aware of the importance of front-end loading, while project team members should be introduced to the project from the early stage of the project.
DOI: 10.12755/isec.res.2018.80
title: COMPARATIVE ASSESSMENT OF TRANSPORTATION SUSTAINABILITY RATING SYSTEMS

description: The construction industry contributes a significant amount of greenhouse gas emissions to the environment. This highlights the need for this industry to implement sustainable practices to mitigate its negative effects. Sustainability in the construction industry involves considering project development in terms of economic, social, and environmental aspects (triple bottom line). In the transportation sector of the construction industry, several transportation sustainability rating systems (TSRS) have been developed to measure and promote sustainability. However, studies show that these TSRS have not been developed within a consistent "sustainability scope". This raises the question of the consistency of these TSRS in measuring sustainability of transportation projects. This study assesses three prominent TSRS to determine how each measures sustainability with respect to the triple bottom line. The TSRS that are in the scope of this study are: (i) Envision a third-party rating system, (ii) INVEST a self-assessed rating and, (iii) GreenLITES an in-house developed self-assessed rating system for the New York State DOT. Results show that while these three rating systems provide different levels of credits/points with respect to the triple bottom line, they all place the highest focus on the environmental aspect.
DOI: 10.12755/isec.res.2018.81
title: Compilation and Innovation of Technical Specification of Electrochemical Technology for Durability of Concrete Structures

description: The Chinese Technical Specification of Electrochemical Technology for Durability of Concrete Structures was compiled on the basis of the overseas and domestic development, practice and research of durability electrochemical technology for concrete structures. The Specification stipulated the general provisions, scope of application, main parameters, quality control and inspection etc of electrochemical technology. Main innovation of Technical Specification appears as: 1. An extensive introduction highlighted the operation and requirement of electrochemical technology for durability of concrete structures, including cathodic protection, electrochemical desalination, electrochemical deposition, bi-directional electromigration etc. 2. The mechanism and application of a new-type electrochemical technology, bi-directional electromigration, was described and its advantages were illustrated in case study. Accompanied by the implementation and application of the technical specification, the durability enhancement and control of concrete structures in China will have another level.
DOI: 10.12755/isec.res.2018.82
title: Conceptual Business Models of Strategic Logistic Services for Small-sized Contractors

description: The new Indonesian Construction Service Act has explicitly introduced the importance of supply chains for construction project delivery and sustainable supports of smallsized contractors to the Indonesian construction industry's efficiency. Most of the construction cost comes from the material cost to be delivered to the project site that needs proper logistic management. For large and medium-sized contractors, their capacities and projects values enable them to access closer tier of the supply chains
description: to the producers of strategic materials with more efficient transactions. This is not the case for small-sized contractors, therefore, there should be a strategic logistic service provided for helping them. This paper presents a development of a conceptual business model of a strategic logistic service, especially the third-party logistic service, for small-sized contractors in a small coverage area of operation. Seven business models were identified with the preliminarily identified potential to be the model for the region of Greater Bandung, Indonesia. The models were derived based on the origin entity that could transform or be created as a new business or extended business. The conceptual business models will be used for further research to develop proper and feasible business models of strategic logistic services for small-size contractors in the Greater Bandung area.
DOI: 10.12755/isec.res.2018.83
title: Cooperative Project Development - Influence of participants on success factors of real estate projects

description: Successful project development is characterized by a multitude of risks and high uncertainties. Particularly for the correct assessment of the input data, such as market and location factors, as well as the right estimation of the requirements of the user, high competences are demanded by the project developer. Many decisions, which are required for a successful project development, therefore have to be made in very early stages of the development process. Based on this it has been postulated that an early involvement of stakeholders in the process of project development has influence on the project success. In this context there was executed a quantitative survey to examine competences of planners, contractors, brokers and operators to influence deducted success factors of project development. Findings revealed that the early integration of the participants influence the project success strongly. Particularly planners have a very high influence on object based factors like building design and layout of the ground plan. For optimizing the market and location factors also an integration of brokers and operators is essential. For developers it is recommended that they are informed of the possibilities of influencing the different success factors by an integration of the main participants. So the security for project relevant decisions in the early stage of the development process can be provided.
DOI: 10.12755/isec.res.2018.84
title: Crushing Characteristics of Soil Particle on the Effect of Stress Path

description: In previous studies, we have conducted tests under various conditions of stress for the particle crushing. Anyway, it is necessary to perform the crushing test that assumed stress conditions in ground under controlled each principal stresses individually, to find the mechanical characteristics of the soil with particle crushing. Therefore, the purpose of this study is to confirm the effect for particle crushing under various stress paths in the combination of principal stresses. We planned four combinations of principal stresses when operate the mean stress p and deviatoric stress q up to the Shear Failure Line (SFL) on the ?-plane. First, we set tri-axial extension test as Lode angle ?=60ฐ and tri-axial compression test as ?=0ฐ, and set two of the remainder as ?=40ฐ, 20ฐ. The crushing tests are carried out using the high pressure true tri-axial compression apparatus under the planned stress paths. As a result, the progress of the particle crushing becomes active in order of ?=40ฐ, 20ฐ, 60ฐ, 0ฐ, and found out that deviatoric stress q has essential effect on the particle crushing.
DOI: 10.12755/isec.res.2018.85
title: DEFORMATION PERFORMANCE IMPROVEMENT IN TIMBER COLUMNGROUND SILL JOINT REINFORCED USING ARAMID FIBER SHEET

description: We report the progress of an experimental study conducted to understand the seismic performance of a timber columnground sill joint reinforced using an aramid fiber sheet, and to improve the deformation property of the reinforced joint. An aramid fiber sheet is a new material that weaves high-performance aramid fibers in one or two directions. In previous research, certain problems were found: (a) even when applying a similar reinforcement, the sheet did not necessarily demonstrate the same failure mode, and (b) when the sheet was peeled off in stretches, the joint is destroyed through brittleness. In this study, based on the preceding research, we proposed a new sheetpasting method for an improvement in the deformation property, and conducted a bending test under cyclic loading for some columnground sill joint specimens to verify the seismic performance and failure behavior. It was found that, by splitting the sheet, the problems of the preceding research are avoidable.
DOI: 10.12755/isec.res.2018.86
title: Design and build A delay reduction method for construction projects

description: The paper reports on a study of the impact of traditional and design & build delivery methods to ameliorate schedule delays in the South African construction projects. A case study approach of two similar projects was adopted for the study. Data was compiled from document analysis and semi-structured interviews. Selection of projects was purposive and convenience based. A comparative analysis of the two projects was performed on delays to inform on which delivery method ameliorated better the impact of schedule delays. Findings were that design and build marginally reduced the impact of consultant related delays. Little impact was however found for client, contractor and design change related delays. Most construction projects suffer delays, which inevitably increases the contract sums. Reducing the impact of delays is therefore critical. Choice of a delivery method offers an opportunity to reduce the delays and therefore it is valuable to understand which delivery method offered better results. Findings underscore the importance of seeking alternative methods to improve performance. The design and build method seemed to perform better than the traditional method on delay reduction. The implication is that although clients prefer "safe' methods, alternative delivery methods offered better results.
DOI: 10.12755/isec.res.2018.87
title: Design and planning of scaffolding system

description: In this paper, the automatic design method of scaffold was proposed. This method was programmed using web based PHP program under the safety standard and the designer's know-how. The size and the numerical quantity of the scaffold were calculated considering the relation between the scaffolding condition and the constructing structure. Three dimensional positions and the numbers of the individual scaffold materials were calculated and recorded in the data server simultaneously. Then, three dimensional structural drawings were made automatically using the AutoCAD with VBA by using the previously designed material positions. Therefore, 3D drawings were done automatically. From the proposed design method, the precise quantities of scaffold materials were obtained. Also, the drawing of the scaffold was done automatically without any laborious drawing by hands.
DOI: 10.12755/isec.res.2018.88
title: DESIGN FEATURES FOR IMPROVED CONSTRUCTABILITY OF MARINE PIER PROJECTS

description: Marine construction projects face significant challenges due to their physical environment as well as safety and environmental regulations. A well-engineered design with constructability in mind is essential for the successful construction of such projects. This study investigated the design features that created significant constructability benefits on the Pier 12 Replacement Project at San Diego, California. The US $82 Million fixed price design-build project involved the construction of a new 1,500-foot pier that could fulfill the utility needs of multiple stationed ships. The following design features were important in improving the constructability of the new pier: (1) Selection of plumb piles
description: (2) Design of uniform and longer pile spacing
description: (3) Increased depth of pile dowel tubes
description: (4) Use of T-headed pile dowels
description: (5) Avoiding the use of pile caps
description: (6) Minimizing the fluctuations of deck soffit elevations
description: (7) Minimizing the expansion joints
description: (8) Minimizing the variety of rebar sizes
description: and (9) Increasing the depth of concrete rebar cover.
DOI: 10.12755/isec.res.2018.89
title: Design of Flexible Pavement using marble dust in subgrade soil

description: Harnessing of industrial waste for improvement of soils is economical and efficient. It helps in enhancing the soil properties and overcoming the disposal problem. Therefore, it is essential to understand the properties of these wastes in order to understand their performance level. In this study, waste marble dust was added to stabilize the soil which was collected from Rajpura Punjab. The various index properties liquid limit, plastic limit was studied by adding Marble dust 10%,15%,20% and 25% by weight of soil. Similarly, California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) was calculated at maximum dry density obtained from compaction test. It was observed that based on tests that 20% of waste marble dust was optimum for strengthening of the parent soil. Resilient Modulus was calculated afterwards for the subgrade using models specified by Heukelom and Klomp, Thompson and Robnett, Transport and Road Research Laboratory, Erdem Coleri. Based on the results obtained, pavement thickness was determined for designing flexible pavement section as per IRC 37-2012 using IITPAVE. Design was done considering the horizontal tensile strain and vertical compressive strain at the bottom of bituminous base and at top of subgrade, responsible for fatigue and rutting of pavements.