{"title":"Ground Displacement Analysis of Double-tube Parallel Shield Tunnels","authors":"W. Rong, Hong Yuan","doi":"10.18178/ijscer.8.3.240-245","DOIUrl":"https://doi.org/10.18178/ijscer.8.3.240-245","url":null,"abstract":"Ground surface settlement is one of the vital factors to assess the structural safety during tunnel construction. According to the well-known Mindlin displacement solution, we fully analyze the mechanical behavior of ground surface settlement caused by the tunnel construction. Modified formula of ground deformation induced by ground loss is proposed in this paper, which is employed to predict the ground surface settlement induced by the double-line tunnel construction with superposition principle. The successive construction process of doubletube parallel shield tunnels in the same direction is simulated with finite element software FLAC3D, and the simulated results is compared with values calculated by the modified theoretical formula. Finally, we find that our numerical results are in an excellent agreement with the theoretical results. ","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122885481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Green Building Construction Guidelines Using Game Theory","authors":"Vimonlnapath Hoouangnak, A. Therdyothin","doi":"10.18178/ijscer.8.2.138-145","DOIUrl":"https://doi.org/10.18178/ijscer.8.2.138-145","url":null,"abstract":"The study of decision possibility of building owner and constructor using game theory showed that in case of one-time playing game, both of players would choose to construct normal building because of its prominent strategy as it provided more result than green building construction, so there was no co-operation between both","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131001718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tenants’ Motivations to Lease Green Office Buildings: an Exploratory Study of Sydney Central Business District","authors":"Sumin Kim, B. Lim, Jinu Kim","doi":"10.18178/ijscer.8.1.59-62","DOIUrl":"https://doi.org/10.18178/ijscer.8.1.59-62","url":null,"abstract":"Environmentally friendly and energy efficient green buildings have gained their popularity across many countries including Australia. Despite their increasing popularity and rental premium, it is not known why tenants are more inclined to lease green over non-green office buildings in Australia. In addressing this gap, this study aims to explore tenants’ motivations to leasing green office buildings. To this, this study first analysed over 2,000 tenants occupying over 100 green buildings in Sydney CBD. This allowed this study to identify which tenants are more likely lease green buildings than the others. The results show that tenants from; (i) the Finance and Insurance services sector, (ii) the Professional, Scientific and Technical services sector, and (iii) Real estate services sector account for over 50% of the entire tenant sample. Then, a judgemental purposive sampling method was adopted, and nine interviews were conducted with the key leasing decision-makers from the top three sectors. The interview findings reveal that the traditional aspects of location and costs are still the key motivational factors for green building tenants. However, many interviewees acknowledge that leasing a green office space could help improving their corporate image. This thus led to many tenants’ beliefs that green spaces contain both symbolic value and tangible value, and that higher rents for green buildings are rather acceptable considering what they can offer. The results of the study suggest that understanding the demand of various types of tenants is essential to shed the light on the expensive rental price of green buildings in Australia. ","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":" 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113948047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Strengthening of Damaged RC Column Using Lateral Compression","authors":"Atul Gupta, Er. Abhishek Murthy, C. K. Murthy","doi":"10.18178/ijscer.12.1.1-5","DOIUrl":"https://doi.org/10.18178/ijscer.12.1.1-5","url":null,"abstract":"— The objective of this paper is to present a new method for strengthening of RC column in a multi storey high rise building specifically for the splitting cracks at top of the column arisen due to cranks in the main rebar. The lateral compression force equal to split tensile strength of concrete 3.2 Mpa in the concrete grade of C32/40 was applied. External steel angles with steel rods were used to impart a lateral compression force on the RC columns using hydraulic jacks. This gain in the flexural strength is due to the confinement effect imparted on the concrete externally. The RC column was modelled in the 3D and FEM analysis was done to check the imparted stresses onto the steel angles and concrete. This method can effectively be used for the RC columns in the industry as it requires clamping of RC columns externally which can be achieved on site with ease.","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":" 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113948203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Katkhuda, Nasim Shatarat, Ahmad A. AL-Rakhameen
{"title":"Improving the Torsional Capacity of Reinforced Concrete Beams with Spiral Reinforcement","authors":"H. Katkhuda, Nasim Shatarat, Ahmad A. AL-Rakhameen","doi":"10.18178/ijscer.8.2.113-118","DOIUrl":"https://doi.org/10.18178/ijscer.8.2.113-118","url":null,"abstract":"An experimental program is carried out in this paper to test nine reinforced concrete (RC) beams in order to study the torsional behavior of the beams using transverse reinforcement under different configurations: ordinary, continuous rectangular spiral, continuous circular spiral, and continuous advanced rectangular spiral configuration. The experimental torsional capacity results are compared with the theoretical values determined by the ACI 318-14 code. The results showed that the use of continuous spiral and rectangular reinforcement as transverse reinforcement enhanced the torsional capacity up to 17 % higher than using traditional reinforcements, and the ACI318-14 torsion equations are applicable and conservative for predicting the ultimate torsional capacity for beams with continuous rectangular and spiral","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117163183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluate of Flexural Behavior of the Prestressed Concrete Girder Using Carbon Fiber Reinforced Plastics via Finite Element Method","authors":"H. Nguyen, H. Masuya, S. Fukada","doi":"10.18178/ijscer.8.3.204-209","DOIUrl":"https://doi.org/10.18178/ijscer.8.3.204-209","url":null,"abstract":"A flexural experiment was conducted on the tested prestressed concrete girder using carbon fiber reinforced plastics (CFRP) tendons, which has the full scale of an actual one and was placed next to the main girders of Shinmiya Bridge in the corrosive environment nearly 30 years. In this study, the flexural behavior of this tested girder was investigated by the finite element method. A three-dimensional analysis model was built in LS-DYNA and analyzed by an explicit finite element program. The load-bearing capacity, load-deflection curve, and the crack pattern were evaluated in comparing with experimental results. The comparison result showed that there was a consistency between results obtained from the simulation and that obtained from the experiment of the tested girder in 2017. Based on this model, the decrease of pre-stressing force in the tendons, the reduction of the compression concrete strength were studied to evaluate the change in the behavior of the structure.","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126761759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. R. Kamal, R. Rumman, K. W. Shushmi, K. A. Hasan
{"title":"River Bank Protective Work of Bangladesh: A Case Study on the River Padma","authors":"M. R. Kamal, R. Rumman, K. W. Shushmi, K. A. Hasan","doi":"10.18178/ijscer.8.2.171-177","DOIUrl":"https://doi.org/10.18178/ijscer.8.2.171-177","url":null,"abstract":"—A well and exact documentation of the methodology and novel implementations of a river training work can pave the way for future economic, established and cost effective paradigm to work with. The paper describes contemporary practice for river training works, as well as site specifics, obstacles, costs involved and management exercises, along the Padma River, the main distributary of the river Ganges. A map of the riverbank erosion along the study area is provided in order to extract proper and useful information about the morphological nature of the river. Then the technical aspects for bathymetric survey along with the application procedure used for dumping and placing of geo-bag and CC block along the riverbank for its protection is described. After that, some of the concerns and challenges that were encountered by the team, which was working there, are discussed. It was found that the project would have benefited if the technical and instrumental risks in addition to the uncertainty of workers were taken into account beforehand. A cost analysis table is also provided to give information about the estimated expenditure for future projects.","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126371414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Physical Environment of Learning Space on Comfort and Emotional Perception in Severe Cold City in Winter","authors":"Wenjuan Li, Hong Jin","doi":"10.18178/ijscer.12.1.13-19","DOIUrl":"https://doi.org/10.18178/ijscer.12.1.13-19","url":null,"abstract":"—The cold winter in severe cold area is long, and the heating period is about 6 months. People spend more than half a year in a closed room, so the study of learning space comfort is particularly important. Learning space is the main place for students' daily learning and life. Its physical environment affects users ' comfort and emotional perception. In order to explore the in-fluence of physical environment on human comfort and emotion in winter of learning space in severe cold cities, and the relationship between different indoor environment comfort and human emotion, therefore, this study investigated the change range of temperature, illumination and sound pressure level of learning space, and selected 27 different environmental conditions for controlled indoor environment experiments. The results show that, temperature has significant influence on thermal comfort, acoustic comfort and visual comfort, and people will feel more comfortable in neutral temperature environment. Sound pressure level has significant influence on acoustic comfort and visual comfort, which are better in quiet environment. Illumination only has a significant impact on visual comfort, and visual comfort is poor in too bright environments. The overall environmental com-fort is affected by thermal environment, acoustic environment and luminous environment, and the overall environment is the most comfortable at 22 °C, 35 dBA and 100 lux. Emotional perception is affected by three physical environmental factors, and has a significant relationship with environmental comfort. In a comfortable experimental environment, the perception of positive emotion is more obvious, and in an uncomfortable environment, the perception of negative emotion is more obvious.","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127130615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jieya Yang, Linoj Vijayan, M. Ghorbanzadeh, Onur Alisan, Wenrui Huang, E. Ozguven, Simone Burns
{"title":"Effects of the Uncertainty of Hurricane Tracks on Coastal Hazards and Evacuations","authors":"Jieya Yang, Linoj Vijayan, M. Ghorbanzadeh, Onur Alisan, Wenrui Huang, E. Ozguven, Simone Burns","doi":"10.18178/ijscer.11.4.99-107","DOIUrl":"https://doi.org/10.18178/ijscer.11.4.99-107","url":null,"abstract":"— Hurricanes cause devastating amounts of damage to structures and infrastructure. It harms especially those coastal residents along its track. Over the last couple of years, evacuation planning for populated coastal regions has been challenging and time-consuming due to the uncertainty of the hurricane’s track. As such, with a focus on Northwest Florida, this research aims to focus on the development of evacuation scenarios for coastal communities that combines hurricane inundation and strong wind forecast and evacuation modeling. The proposed approach integrates storm surge simulation models (ADCIRC and SWAN modeling) and traffic evacuation models (Cube and TIME) by using hurricane forecasting datasets to explore the designation of evacuation zones and the calculation of evacuation clearance times in different counties. This approach was applied to three distinct scenarios with a focus on possible populated coastal cities that Hurricane Michael would have hit in 2018. Selected cities are Pensacola, Destin, and Panama City. This type of approach has the potential to help agencies make more informed decisions on evacuations using the accuracy and timeliness of forecasts and provide safer evacuations in coastal areas by avoiding the traffic jams on evacuation routes.","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122352905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Power Generation from Bridge Vibration under Ordinary Vehicle Load","authors":"Hoang Le, T. Ha, S. Fukada, T. Ueno","doi":"10.18178/ijscer.10.4.165-171","DOIUrl":"https://doi.org/10.18178/ijscer.10.4.165-171","url":null,"abstract":"This study conducted the structural eigenvalue analysis on a highway bridge model to investigate its vibration characteristics and to find out an appropriate location to set a new power-generating device using a magnetostrictive element (Fe-Ga alloy). The energy generator is consisting of a Fe-Ga element of 4 x 0.5 x 1.6 mm attached to a U-shaped frame with a permanent magnet for magnetic bias wound about by a coil and the weight attached to the tip of the U-shaped frame was adjusted to allow the frame vibrates with the frequency of the vibration source. First, a part of the elevated line of a highway bridge located in Kanazawa city was reproduced by using a commercial finite element software named DIANA. As the results, at the lateral brace between G1 – G2 main girders and P2 – P3 pier, which its frequency was estimated to be ~ 19Hz, is the optimal place for the device. Moreover, an open-circuit voltage of ~ 8V was recorded. ","PeriodicalId":101411,"journal":{"name":"International journal of structural and civil engineering research","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127202160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}