cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14455/isec.res.2017.69
title: ESTIMATION OF DYNAMIC RESPONSES ON CONTOURS OF SEVERAL ROUND CUTS AT THIN PLATE VIBRATIONS

description: According to most theoretical and experimental researches, wave models quite fully and accurately describe the process of foundation vibration in the soil ground. Thus, the solutions obtained for the vibration of an infinite plate with a circular cut are successfully used today to determine the amplitude-frequency characteristics of the pile foundations; however, the results of the cases with more than one cut are practically needed. In this paper, analytical expressions are found for dynamic stiffness within the wave model framework regarding the vertical vibrations of an infinitely thin plate with circular cuts, their mutual alignment being regarded. Determined expressions take into account the distance between piles located in a row or in a group. Obtained results can be used for the calculations of the amplitude-frequency characteristics of pile foundations.
DOI: 10.14455/isec.res.2017.71
title: Affordable Housing Policy Implementation in Municipalities: A Case Study

description: The City of Edmonton (City), the fifth largest municipality in Canada, passed the Affordable Housing strategy in year 2015. The strategy formalizes the City
DOI: 10.14455/isec.res.2017.72
title: WIND PRESSURE DISTRIBUTION ON NORTH-LIGHT INDUSTRIAL BUILDING ROOF

description: Industrial buildings are generally provided with sloping roofs in order to achieve large column free areas. It is noticed that roofs of many of such buildings are blown off during cyclonic storms. Whereas one of the possible reasons may be improper construction, another reason may be under estimation of wind loads acting on them. Structural designers generally refer to standards on wind loads of different countries to choose suitable values of wind pressure coefficients acting on sloping roofs. However, values of wind pressure coefficients available in literature are limited to certain roof slopes and certain wind incidence angles only. An attempt has, therefore, been made to carry out experimental study on the models of industrial building with north-light roof in order to generate more information about wind pressure distribution on it. The models are tested in a closed circuit boundary layer wind tunnel to measure values of wind pressures on roof surface. Four cases namely one, two, three and four spans are considered. Plywood models are placed by the side of Perspex sheet model in case of multi-span study. Wind is made to hit the models at 13 wind incidence angles from 0
DOI: 10.14455/isec.res.2017.75
title: Probabilistic calculation of total labor consumption rate of reinforced concrete works

description: Correlations between calculation parameters directly influence the results of probabilistic calculations and their interpretation. In Monte Carlo simulations carried out to systematically integrate uncertainties into the calculation process, input parameter correlations are reflected by correlation coefficients and predominantly influence the chance/risk ratio and ranges of results. Correlations are usually determined indirectly by analyzing existing data series gathered from measurements, surveys, experiments etc. and investigated with respect to their linear relationship. Another option is to directly determine correlation coefficients based on expert surveys. In 2015/16, Kummer/Hofstadler conducted a survey at Graz University of Technology in which experts provided estimates of the coefficients corresponding to the correlations between certain parameters. These considerations concentrated on the labor intensity of reinforced concrete works expressed by the total labor consumption rate, which indicates the amount of labor required for reinforced concrete works per cubic meter of concrete. The total labor consumption rate of reinforced concrete works must consider all activities carried out within the system, such as shuttering, reinforcing and concreting. This paper presents and interprets survey results shown in violin plots, and M-estimators are derived to deliver sound recommendations for considering correlations when determining the total labor consumption rate of reinforced concrete works. An example demonstrates the influence of input parameter correlations on calculating the total labor consumption rate of reinforced concrete works.
DOI: 10.14457/mu.the.2014.111
title: การพัฒนาดัชนีชี้วัดคุณภาพชีวิตการทำงานของตำรวจชั้นประทวน ในสำนักงานกองบัญชาการตำรวจภูธรภาค 5
DOI: 10.14455/isec.res.2017.117
title: Program-for Results: an analysis of procurement strategies

description: In year 2012, the World Bank responded to the continuous demand from borrowing countries to offer a results-based financing mechanism by introducing the Program-for-Results (P4R) mechanism. There are four main characteristics that define the framework of applying P4R; namely, (1) it supports borrowers
DOI: 10.14455/isec.res.2017.174
title: ULTIMATE STRENGTH OF CONCRETE FILLED SQUARE STEEL TUBULAR BEAM-COLUMNS

description: The objective of this study is to examine the ultimate strength of CFT columns. The range of axial load ratio and the slenderness ratio in which the full plastic moment is reached at a CFT beam-column are examined on the basis of the strength formulas specified by
DOI: 10.14455/isec.res.2017.81
title: Behavior of Corroded RC Beams without Stirrups Repaired with CFRP Sheets

description: In reinforced concrete structures located in hot and humid areas, steel reinforcement is generally vulnerable to deterioration due to corrosion. Corrosion of reinforcement in many cases is considered the main cause of concrete structures deterioration which in turn requires large budgets for repair and maintenance. This paper presents the experimental results of damaged/repaired reinforced concrete beams. The experimental program consisted of testing reinforced concrete rectangular beam specimens with/without shear reinforcement and exposed to accelerated corrosion of the longitudinal steel reinforcement on the tension side. Corroded beams without shear reinforcement were repaired by bonding external U-shaped CFRP sheets to restore the strength loss due to corrosion.
DOI: 10.14455/isec.res.2017.83
title: Velocity Control of Vehicles Separating from Vehicle Platoon

description: Vehicle platoon is very important techniques for increasing the traffic flow safely and effectively. The electric and mechanical systems are necessary for effective vehicle platoon. Several systems have been studied for control vehicles in the platoon. This paper focuses on the velocity control of the vehicles separating from the vehicle platoon. The velocity control model is defined according to the vehicle following model and then, the parameters are determined by minimizing the objective function. The model with the optimized parameters is applied for the vehicle platoon experiment of LEGO Mindstorms NXT. The experimental results are compared with the simulation results in order to confirm the validity of the model. Although the experimental results finally converge to the simulation results, there exists the difference between the computational simulation and the experimental results because of the error of the sensor and the others.
DOI: 10.14455/isec.res.2017.88
title: Project conditions justifying time-at-large claims

description: The time for completion on a construction project is of great importance and is sometimes referred to as being of the essence. Having a known completion date that the contractor shall be willing to commit to carries both advantages and implications. That is, if the contractor inexcusably overruns this completion date, he becomes liable for delay damages which usually take the form of liquidated damages (LD). During the course of construction, several circumstances may surface which have the effect of the time for completion to be said to have become at large, a situation that can hinder the triggering of the LD clause by employers. This paper aims to explain the concept of time at large and its reasons and implications, while viewing its applicability under both the common and civil law systems. It highlights the conditions whose prevalence justifies the time on the construction contract to be called to have become at large. The work represents the foundation for constructing a method that can aid in systematically testing if such a calling can be viewed as justifiable.
DOI: 10.14457/mu.the.2015.16
title: รูปแบบการป้องกันปราบปรามอาชญากรรมของตำรวจท่องเที่ยวจังหวัดภูเก็ต
DOI: 10.14457/mu.the.2015.20
title: แนวทางการจัดการความสุขในการทำงาน กรณีศึกษาคณะ/องค์กร ในมหาวิทยาลัยของรัฐ
DOI: 10.14455/isec.res.2017.105
title: Experimental Study on Concrete Permeability Affected by Environmental Vibration

description: Based on the field measurement and combined with relevant references, the different sinusoidal vibration parameters (5Hz/4mm and 20Hz/2mm) are selected and applied to new constructed concrete by vertical vibrating table and AC impedance technique. The concrete permeability is discussed, and the influences of some factors including different vibration time (before initial curdle, between initial curdle and finial curdle, after finial curdle), different vibration energy. From the experiment results, the following conclusions can be concluded. No matter whether the concrete vibrated or not, the uniformity inside the concrete along the direction of concrete pouring is shown that the upper and lower part of concrete is more discrete. The permeability on the both end of concrete is larger than the middle. The new constructed concrete permeability is increased when the vibration energy is lower, and decreased when the vibration energy is higher, and the new constructed concrete permeability affected by environment vibration obviously before initial curdle time.
DOI: 10.14455/isec.res.2017.136
title: Brittle/ductile assessment of Hybrid Reinforced Concrete beams containing steel rebar and fibers

description: Many structures, such as precast and cast-in-situ tunnel linings, are nowadays realized with Hybrid Reinforced Concrete (HRC), where a combination of continuous steel rebar and discrete fibers is used to reinforce the cementitious matrix. Hence, the definition of a minimum amount of hybrid reinforcement (i.e., rebar and fibers), which prevents the brittle failure, is of practical interest. For predicting the brittle/ductile response of HRC beams in bending, a theoretical model is introduced and presented in this paper. It is based on the flexural response of both Lightly Reinforced Concrete (LRC) and Fiber-Reinforced Concrete (FRC) beams, separately analyzed. The numerical results of the model, and some experimental data as well, show that the minimum reinforcement of HRC beams can be determined with a new design procedure. It requires the definition of the ductility index (DI), which is proportional to the difference between ultimate and effective cracking load. As DI linearly increases with the amount of rebar and fibers, the minimum reinforcement in HRC members can be found when DI is equal to zero. In addition, the minimum hybrid reinforcement can be defined with a suitable linear combination of the minimum area of rebar and the minimum fiber volume fraction, related to LRC and FRC beams, respectively.
DOI: 10.14455/isec.res.2017.92
title: EVALUATION OF THE HIRSCH MODEL FOR DYNAMIC MODULUS ESTIMATION OF ASPHALT MIXTURES

description: The dynamic modulus of the asphalt mixtures is an important factor in designing or analyzing an asphalt concrete pavement, but it is expensive and time consuming to measure. Therefore, it is important to develop a model to predict this value. In this regard, the Hirsch model is a popular model, however, it is developed based on a range of U.S. asphalt mixtures and standards. Therefore, it is not certain that it can be used for asphalt mixtures based on materials and codes other than U.S. This article investigated whether this model performs satisfactorily with two typical asphalt mixtures in Western Australia (WA) containing 0, 10, 20 and 30% of recycled asphalt pavement. To do so, cylindrical samples were made with materials and locally established standards in Western Australia and then tested in Asphalt Mixture Performance Tester (AMPT) machine to acquire their dynamic modulus and phase angle values in different loading frequencies (0.01 to 10 Hz) and temperatures (4-40
DOI: 10.14457/mu.the.2014.120
title: การมีส่วนร่วมของประชาชนในงานป้องกันยาเสพติดของงานตำรวจชุมชนและมวลชนสัมพันธ์เขตพื้นที่อำเภอสามพรานจังหวัดนครปฐม
DOI: 10.14455/isec.res.2017.108
title: Theoretical approach to determination of acoustic properties of building materials

description: The presence of high level of acoustic load especially in urban areas is becoming a serious problem in the present. In order to protect people against adverse effects of audio noise on health and personal well-being in buildings located in such areas, convenient construction materials with sophisticated geometric arrangement should be used. Bearing structures of new houses in the Czech Republic are widely made of different types of brick blocks. Such brick blocks consist of solid matrix and cavities designed in an optimized geometrical way in order to assure better thermal and hygric properties. Previous studies dealing both with acoustic properties in an empirical way and with the theoretical aspects of acoustic attenuation in building materials were not very numerous. Nevertheless, they gain constantly in importance with increasing acoustic load of the buildings surroundings. In this paper, a theoretical approach for the determination of acoustic properties which is convenient for the description of sound waves propagation in building materials is introduced.
DOI: 10.14455/isec.res.2017.99
title: Bond and Flextural Behavior of Self Consolidating Concrete Beams Reinforced with FRP Bars

description: Self consolidating concrete (SCC) is widely used in the construction industry. SCC is a high performance concrete with high workability and consistency allowing it to flow under its own weight without vibration. In spite of the wide spread of SCC applications, bond behavior of FRP bars embedded in SCC beams has not been fully studied. This paper presents an experimental and analytical analysis of fifteen beams reinforced with GFRP bars. The test parameters were the concrete type, bar diameter, concrete cover thickness and embedment length. All beams were tested in four-point bending to failure. The average bond stresses of GFRP bars in SCC were found comparable to those in NVC. However, FRP bars embedded in SCC beams had higher bond stresses within uncracked region of the beams than those embedded in NVC beams. In contrast, GFRP bars in SCC had lower bond stresses than FRP bars in NVC within the cracked region. Results indicated that when cover concrete thickness dropped less than 2 db, the splitting bond failure is predominant.
DOI: 10.14457/mu.the.2015.23
title: ความต้องการในการเรียนเปียโนของผู้เรียนวัยผู้ใหญ่กรณีศึกษาสถาบันดนตรีเคพีเอ็น
DOI: 10.14457/mu.the.2015.24
title: คุณภาพบริการตามความคาดหวังและการรับรู้ของผู้รับบริการ คลินิกปกติในเวลา และ คลินิกพิเศษนอกเวลา แผนกผู้ป่วยนอกอายุรกรรมในโรงพยาบาลที่มีการเรียนการสอน
DOI: 10.14457/mu.the.2015.26
title: ความแตกต่างของภาวะเจริญพันธุ์ของสตรีไทยพุทธและมุสลิมในภาคใต้ของประเทศไทย
DOI: 10.14455/isec.res.2017.124
title: Road Safety Audit and A Case Study on Kano-Kaduna Highway in Nigeria

description: As a consequence of increasing traffic volume and mobility, road accidents have been a serious problem especially in low and middle income countries. The number of road accidents in such countries tends to increase every year.Considering different contributing factors to the road accidents, road and its environment have played an important role. Road safety audits and road safety inspections have been worldwide used tools to monitor and to evaluate road projects and existing road sections from the safety perspective. In this study, through the evaluation of different safety auditing techniques applied in the world, a case study on a Nigerian Road Section has been implemented. The expectations from such a study are: (i) To show the main safety deficiencies of the Nigerian road sections. (ii) To introduce a new tool to the local road authorities to further use it for monitoring their road sections. Based on this study, the audit report was prepared to summarize findings with possible countermeasures.
DOI: 10.14455/isec.res.2017.150
title: SHRINKAGE AND CREEP EFFECT ANALYSES OF DOUBLE COMPOSITE CONTINUOUS BOX-GIRDER BRIDGE CONSTRUCTED BY PRE-JACKING METHOD

description: Continuous double steel and concrete composite beam is a new structural system developed on the basis of common steel and concrete composite beam. Controlling concrete slab crack width in a continuous double composite beam is a significant content in the bridge construction process. Jacking-up and landing bearing supports method is applied to a double composite girder bridge construction and its structural mechanical behaviors in the whole process will be simulated. By using of User Programmable Features and ANSYS Parametric Design Language, the commercial FEM software ANSYS was further developed. The exponential model of concrete creep and the implicit solution of concrete creep equation under the action of variable stress were introduced into ANSYS, to realize the concrete shrinkage and creep effect analysis of double composite continuous box-girder bridges constructed by pre-jacking method. The results show that it is improved that the stress state of the top concrete slab in the negative moment regions by pre-jacking method. Due to the effect of concrete creep, the concrete creep will cause tensile stress in the negative moment regions of the composite beam, which will reduce the compressive stress in the top concrete slab. The effect of prestressing is greatly affected by pre-jacking value, and the creep of the concrete also causes the stress redistribution of the concrete and the steel beam.
DOI: 10.14457/kku.res.2015.5
title: สภาพปัจจุบัน ปัญหาและสาเหตุการตั้งครรภ์ของนักเรียนกลุ่มเสี่ยงในภาคตะวันออกเฉียงเหนือ
DOI: 10.14455/isec.res.2017.133
title: WIND PRESSURE DISTRIBUTION ON CIRCULAR CANOPY ROOFS

description: The present study gives information related to wind pressure distribution on single span and multi span circular canopy roofs. The experiments are carried out in an open circuit boundary layer wind tunnel. Wind pressure is measured on both upper and lower roof surfaces of circular canopy roof model made of Perspex sheet. Models are tested under varying wind incidence angles between 0
DOI: 10.14455/isec.res.2017.139
title: Measuring crack width in RC and R/FRC ties throught laser scanner

description: Durability of reinforced concrete (RC) structure is strictly connected to the capacity of concrete mass to protect the embedded reinforcement from corrosion. As cracks are almost inevitable, crack width is a fundamental parameter that needs to be controlled during the serviceability stage of RC members. In fact, not only the direct ingress of aggressive agents, such as oxygen and water, is a function of crack width, but also concrete carbonation and the chloride ion penetration are accelerated by the presence of wide cracks. Accordingly, the aim of present research project is to assess the width by using a new system, based on the optical conoscopic holography. It provides the non-contact measure of crack profile, taken at the end of each loading cycle, in ties subjected to sets of repeated loads. Both in plain and fiber-reinforced concrete (FRC), more than one crack width can be mesured for the same crack.
DOI: 10.14455/isec.res.2017.143
title: Interaction strength for CHS-to-longitudinal plate joints under axial load and in-plane bending moment

description: The circular hollow section (CHS) has lots of advantages in excellent structural properties, architecturally attractive features. Thus CHS are used extensively in many applications in buildings, bridges, towers, and offshore. In CHS, it is necessary to understand the various complex shape of CHS joint because loads act simultaneously according to joint type. The use of high strength steel has been continuously increased, but the current design equation in AISC 2011 or KBC 2016 limits maximum yield strength 360MPa. This paper studies an interaction strength of high strength CHS-to-longitudinal plate X-joint subjected to combination of plate axial load and in-plane bending moment. For the study, numerical analysis based on experimental tests was carried out. The analysis was performed according to variables for determining shape of joint, i.e., chord slenderness, plate width-to-CHS diameter ratio, and utilization ratio. Investigations have shown that a linear summation of the ratios for axial load and in-plane bending moment may be used as conservative approximation.
DOI: 10.14455/isec.res.2017.178
title: Fatigue Behaviour of the Upper End of Vertical Stiffener Connected with Sway Bracing

description: Lots of fatigue crackings were reported at the upper end of vertical stiffeners connected to intermediate bracings in steel highway girder bridges. Several countermeasures were proposed against those crackings, such as steel plate reinforcement between the upper flange and the vertical stiffener using high tension bolts after breaking RC slab, or re-welding. However, the work of breaking RC slab requires traffic lane closing, and re-welding may cause re-cracking. Then, some steel plate reinforcement methods using a jack-up jigs were proposed, in which traffic lane closing should not be required. But it has not been verified how effective in stress reduction and fatigue life extension.In this study, we investigate fatigue behaviour of the upper end of vertical stiffener connected with intermediate bracing, through fatigue tests using a full-scale specimen with three main girders under alternative loading using two actuators. As a result, alternative loading can reproduce the alternative stress at the upper ends of vertical stiffener in the middle girder under vehicles run on the true traffic lane and passing lane. In fatigue tests, root and toe cracks occurred after 0.1 to 1.6 million cycle loading, and it is confirmed that root cracks tend to be developed when the root width is large.Further studies are required on retrofitting methods against fatigue cracking at the upper end of vertical stiffener connected with intermediate bracing.
DOI: 10.14455/isec.res.2017.190
title: EXPERIMENTAL STUDY ON H-SHAPED STEEL BEAM WITH CONTINUOUS BRACING SUBJECTED TO END MOMENT

description: As for H-shaped beams, concrete floor slab and purlins can be considered as bracing if they have enough stiffness and strength. There are many studies about bracing against lateral torsional buckling. However the effect of lateral bracing cannot be properly considered in the practical design currently. The purpose of this study is to show the effect of the lateral bracing and vertical stiffener experimentally. The test on the lateral buckling of H-shaped steel beam with a steel plate which is a continuous bracing is carried out. Parameters are the position of bracing and presence or absence of vertical stiffener. The steel plate is welded on the compressive flange or the tensile flange. The vertical stiffener may be considered as the bracing for lateral buckling however the effects of them are not clear. The vertical stiffener is set at the position where the lateral deformation is assumed largest. The lateral buckling and local buckling occurs in the test specimens without bracing and with continuous bracing on the tensile flange. The maximum strength of the test specimen with a vertical stiffener is 5% smaller than that of the test specimen without a vertical stiffener. However, the strength degradation of the test specimen with a vertical stiffener is smaller and the load is 90 % more than the maximum load when the rotation angle is 0.07 rad.