cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14455/isec.res.2018.64
title: A Graphical User Interface (GUI) for Forensic Analysis of Delay and Disruption

description: Disrupting events are common in construction and can have a significant impact on the successful completion of a project. Disputes concerning disruptive events often arise because no party wants to accept responsibility for the extra cost incurred. The resolution of this kind of disputes lies within the clear demonstration of causation, liability and the quantification of the disrupting event. Purpose of this research is to explore the potential of Building Information Modelling (BIM) in assisting forensic delay and disruption analysis supported by a Graphical User Interface (GUI). An extensive literature review highlighted the shortcomings of current practices and identified the reconstruction of events through incomplete and unstructured documentation as one of the primary challenges faced by the analysis expert. The findings of the literature review formed the basis for the development of a GUI designed to incorporate all the necessary information for the identification of the causal link of events, the liability and the calculation of damages. The usability of the GUI prototype was tested on a case study, indicating an increase in the overall efficiency and reduction of time spent by the forensic analyst in the retrieval of relevant information.
DOI: 10.14455/isec.res.2018.65
title: A SIMPLE CONSTITUTIVE MODEL FOR UNDRAINED SHEAR CHARACTERISTICS OF SANDY SOILS

description: A vast amount of past experimental examinations reported that the internal peak angle of sand was jointly affected by the density and effective stress level. Several relationships were proposed between these elements. The dependence of dilatancy characteristics on the internal state of a granular material was examined and revealed. A simple constitutive model framework was established on a basis of several wellproven and experienced relationships for granular materials to simulate their undrained shear behavior. A basic hardening law connecting the varying tendency of the stress ratio with shear strain was employed. This model is capable of predicting the undrained monotonic stress-strain relationship of granular materials at different densities and various confining pressures. A series of parametric studies are conducted to investigate the susceptibility of the simulation results to the selected parameters. The simulation results also confirm the influential influences of dilatancy and deformability on the shear characteristics of granular materials at the critical state
DOI: 10.14455/isec.res.2018.66
title: A STUDY ON INTENSITY DISTRIBUTION OF CONCRETE IN STRUCTURE WITH DIFFERENT BUILDING AGES

description: Recently, seismic diagnosis and earthquake resistant reinforcement works of buildings built before the new earthquake resistant standards are conducted in various places. However, there is no uniformity in sampling methods, and it seems that there are occasional extreme variations in the determination of representative intensity of the building. In addition, the physical properties of structure concrete which factor of the above-mentioned variations are considered to reflect the horizontal and vertical distribution at the time of concrete placing. Therefore, this study, the core of the existing buildings to be disassembled was collected, and the distribution of physical properties of structure concrete was examined. All target buildings were reinforced concrete constructions, and cores were collected from pillars and waist walls. In addition, there are parts that were built at the time without the ready-mixed concrete plant (from 1960) and pump truck (from 1964). Experimental results of horizontal and vertical distributions of compressive intensity at the pillars and waist walls revealed that there was no greatest decrease in strength and there was not much difference between the maximum strength of the pillar and 300 mm from the vicinity of the pillar and about 300 mm from F. L. Therefore, from this study, it seems that the position of 300 mm from the pillar and F. L. is suitable for the measurement position which develops the representative intensity of the building.
DOI: 10.14455/isec.res.2018.67
title: A Study on the Fluidity of Mortar with Fine Aggregate Adjusted Grain-Size and Powders

description: It has been clarified that the particle shape and particle size distribution of fine aggregate have influenced the fresh properties of concrete and mortar in the past research. But it has not been sufficiently studied how each particle size and particle size distribution of fine aggregate affects the fresh properties of mortar and concrete. In this study, we adjusted the particle size of fine aggregate, and evaluated fresh properties of mortar by indicators. We investigated the fluidity of mortar, which changed depending on the composition of particle size distribution. In addition, the behavior of fresh properties of mortar contained powder substituted as part of cement and fine aggregate adjusted particle size distribution was compared with that when no powder was mixed. Its behavior was discussed. It became clear that, the factor influencing the fluidity varied depending on the composition of particle size distribution. The influence of fine particles on fluidity of mortar varied depending on the content of fine particle and the particles size distribution. When combined with the large particles, the fluidity was improved as compared with the combination with the intermediate particles. In addition, the same tendency as in powder-free mixing was confirmed at powder mixing and increase rate of the relative flow area ratio when fly ash was contained became larger than when the limestone fine powder was contained.
DOI: 10.7910/dvn/l6c4dk/96ypta
title: 113-5_0142.dcm
DOI: 10.7910/dvn/l6c4dk/9mcwf9
title: 113-5_0042.dcm
DOI: 10.7910/dvn/l6c4dk/9mtcm9
title: 113-5_0206.dcm
DOI: 10.7910/dvn/l6c4dk/epgnx4
title: 113-1_0087.dcm
DOI: 10.7910/dvn/l6c4dk/lifrew
title: 113-5_0034.dcm
DOI: 10.7910/dvn/l6c4dk/phlfmj
title: 113-1_0198.dcm
DOI: 10.7910/dvn/l6c4dk/sfbfzb
title: 113-5_0245.dcm
DOI: 10.7910/dvn/l6c4dk/vusfi8
title: 113-1_0135.dcm
DOI: 10.14455/isec.res.2018.68
title: A UNIFIED INELASTICITY AND DAMAGE MECHANICS FOR RUBBER-LIKE MATERIALS

description: The nonlinearities observed in the behavior of rubber and polymeric materials are influenced not only by the far-field stress conditions but also by the morphology, microstructures, and changes at the meso-level such as kinks, crosslinking, and micro tearing. Considering constants temperature applications, the occurrence of microtearing has a significant contribution on the performance of polymers, soft tissues and other rubber-like materials. In this paper, a unified damage mechanics and nonlinear elasticity approach is presented to model nonlinear behavior of rubber-like materials under constant temperatures. The theory is cast within the general framework of the internal variable theory of thermodynamics with large deformations where the Clausius-Duhem inequality is provoked to develop general damage potential. The strain energy density function is formulated in terms of an effective Lagrangian strain tensor that evolves with cumulative damage as cracking and micro-tearing take places. Piola-Kirchhoff (PK) stress tensor is presented and a new form of the damage response tensor is proposed. The model prediction is illustrated against experimental results with good agreement.
DOI: 10.14455/isec.res.2018.69
title: An Efficient Volume Reduction Approach for Water Dredged Soil by Ultrasonic Wave

description: Dredged soil caused by dredging work has brought the limits of the capacity of sediment disposal facilities in Japan. One way to solve this problem is considered to efficiently reduce the dredged soil and secure the capacity of the sediment disposal facilities. As a method of volume reduction, the technique utilizing ultrasonic vibration for compacting of soil particles has been studied so far. There are two purposes of this study. One is to clarify the volume reduction characteristic of water dredged soil by ultrasonic wave irradiation by changing the frequency or output voltage. The other is to take aim at 30% of the volume reduction. In the experimental method, the slurry of either sand or silt, its moisture content adjusted to 150%, was poured into each container. Ultrasonic wave was irradiated from the horizontal direction. After the experiment, the mass of the sample was measured. Relative density and volume reduction ratio were calculated through wet density, dry density, and void ratio. As a result, the highest volume reduction ratio of 27% was obtained when the ultrasonic wave of frequency 28kHz with output voltage 200V were irradiated in the silt. In conclusion, although we did not reach the target volume reduction of 30%, we were able to confirm the increase in density and the decrease in volume.
DOI: 10.14455/isec.res.2018.70
title: ASSIGNMENT OF RESPONSIBILITY AND ROLE TO CONSTRUCTION CLIENT IN KOREA OCCUPATIONAL SAFETY AND HEALTH SYSTEM

description: This study investigated the client's duty and role to prevent construction accidents by participating construction client into the occupational safety and health management system. Since the fatal accidents of the construction sites in Korea are higher than other OECD countries and approximately 500 workers annually have died on construction sites, various efforts have been performed to prevent construction accidents. Recently, in Korea, the client's participation in the safety and health management system has been focused as a fundamental method to prevent serious accidents. To examine the necessity of client's participation, the survey was performed for construction participants. And, survey results and existing studies about client's role were analyzed to assign responsibility and role to the client. Results showed that safety managers and supervisors were strongly agreed for imposing client's duty (average scores of 4.373 and 4.107 in likert 5point scale) while clients showed the lowest agreement (average score of 3.153). In addition, the detailed role was proposed in the whole project stage, that is plan, design, and construction stage. Client can be a key player in reducing the fatal construction accidents by doing the accurate roles proposed in this study.
DOI: 10.14455/isec.res.2018.71
title: Attracting and Identifying High Performing Project Managers

description: Construction project managers (PMs) are critical to the execution of successful construction projects, conducting and orchestrating the intricacies of dynamic and complex projects. A large state university was challenged with attracting and retaining PMs in their construction department during a period of rapid university growth and departmental re-organization. The university tried current models for selecting construction PM firms largely based on commodities-based procurement and/or low bid structures and was unsuccessful. A new model was developed that considered and analyzed both the capabilities and qualifications of the individual PMs. The importance of individuals being able to identify their unique capabilities, be accountable for their performance, and operate in a transparent environment are critical concepts within this model. The new model also created an environment of organizational transparency, requiring PMs to measure their performance and the performance of their projects. The model resulted in an overwhelming amount of high quality PMs seeking to join the university. The university initially sought a specific skills set for new PMs, but revised their criteria and future selection processes for hiring future PMs based on the results of this model. Analysis of the PM capabilities, qualifications, and performance are shared as well as lessons learned to refine the model. This model can also be used to identify high performing individuals in other positions or disciplines.
DOI: 10.14455/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: 10.14455/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: 10.14455/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: 10.14455/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: 10.14455/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: 10.5281/zenodo.1445312
title: Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine

description: SNP dataset in maritime pine (<em>Pinus pinaster</em>) together with the population structure (<em>Q</em>) and kinship (<em>K</em>) matrices.
DOI: 10.5281/zenodo.1445313
title: Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine

description: SNP dataset in maritime pine (<em>Pinus pinaster</em>) together with the population structure (<em>Q</em>) and kinship (<em>K</em>) matrices.
DOI: 10.7910/dvn/l6c4dk/f542cf
title: 113-5_0202.dcm
DOI: 10.7910/dvn/l6c4dk/fjnftb
title: 113-5_0021.dcm
DOI: 10.7910/dvn/l6c4dk/irasiz
title: 113-5_0049.dcm
DOI: 10.7910/dvn/l6c4dk/jshkow
title: 113-1_0082.dcm
DOI: 10.7910/dvn/l6c4dk/npd1fz
title: 113-1_0051.dcm
DOI: 10.7910/dvn/l6c4dk/q7ixwt
title: 113-5_0178.dcm
DOI: 10.7910/dvn/l6c4dk/uxezkn
title: 113-5_0230.dcm
DOI: 10.14455/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: 10.14455/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: 10.14455/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.