Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)最新文献_第3页

Finite Element Analysis of Built-Up T Stub under Blast Loading 爆炸荷载作用下组合式T杆的有限元分析

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.330

S. Akter, Abdullah Al Mamun, Samia Zakir Sarothi, Tanvir Mustafy

引用次数: 0

Simplified Equations for Moment and Shear in Bridge GirdersResulting from AASHTO Truck Loading 汽车AASHTO荷载作用下桥梁主梁弯矩和剪力的简化方程

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.341

Seyedshayan Barary, A. Diab, K. Sennah

{"title":"Simplified Equations for Moment and Shear in Bridge Girders\u0000Resulting from AASHTO Truck Loading","authors":"Seyedshayan Barary, A. Diab, K. Sennah","doi":"10.11159/iccste20.341","DOIUrl":"https://doi.org/10.11159/iccste20.341","url":null,"abstract":"In bridge analysis, bridge designers require the maximum loads applied on bridge traffic lanes in order to determine the appropriate structural design including materials, girder spacing, and cross-section sizes for the bidding procedure. In order to achieve that, designers have to go through an iterative trial and error process which takes a considerable amount of time and may result in overestimation at the bidding stage. In the case of bridge design, there are no such tables which hinders the preliminary assessment of project value and bid cost. As such, this paper outlines a research conducted to develop traffic load equations and tables based on the 2020 AASHTO LRFD Bridge Design Specifications. By utilizing this method, engineers will save time in the design process, and reduce project bid cost by minimizing overdesigned and overestimated structural section sizes for project tender documents. In this research, moving load equations and tables were created based on single-lane bridge models for single span and two-span bridge configurations in SAP2000 software. Truck load arrangements, based on AASHTO LRFD design specifications, were applied and results obtained using moving load approach. Finally, the data generated from the parametric study was used to develop empirical expressions for design moment (MT) and shear (VT) for the use by bridge designers.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114872034","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}

引用次数: 0

Study of Delays to Evaluate the Sustainability over Time of Solutionsfor Urban Intersections 城市交叉路口解决方案可持续性的延迟研究

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.322

F. Medina, A. Burga, A. Bravo

{"title":"Study of Delays to Evaluate the Sustainability over Time of Solutions\u0000for Urban Intersections","authors":"F. Medina, A. Burga, A. Bravo","doi":"10.11159/iccste20.322","DOIUrl":"https://doi.org/10.11159/iccste20.322","url":null,"abstract":"A way to evaluate if the solutions for urban intersections are sustainable in time, is about calculating the delays for a future traffic and the present study estimates the delay variation that are present in time to get a more accurate analysis when it is pretended to use in future traffic. The vehicular delay is one of the most important parameters that is used to evaluate the performance of traffic light intersections, for this reason, professionals of transport use as traffic optimization judgment the decrease of delays This article presents an approach to evaluate the variation of delays through the time for urban intersections for which this investigation analyses the delays in one intersection for different stages. This project begins with a model of the intersection of study helped by the software Synchro 10. Then, the model will be applied for many stages where the vehicular volume will be increased depending the vehicular growth. Finally, it is proved that due to the estimated delays for each stage, it will be possible to estimate their own variations that is based on the trend of percentages variation curve on time delays. In brief, the methodology could be applied in different urban intersections and stages where it is pretended to propose solutions that are sustainable over the time.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978699","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}

引用次数: 0

Development of a Life Cycle Inventory Dataset for Recycled ConcreteAggregates in the City of Abu Dhabi 阿布扎比市再生混凝土骨料生命周期库存数据集的开发

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.228

Mohammed H. Alzard, Hilal El-Hassan, T. E. Maaddawy

{"title":"Development of a Life Cycle Inventory Dataset for Recycled Concrete\u0000Aggregates in the City of Abu Dhabi","authors":"Mohammed H. Alzard, Hilal El-Hassan, T. E. Maaddawy","doi":"10.11159/iccste20.228","DOIUrl":"https://doi.org/10.11159/iccste20.228","url":null,"abstract":"Environmental life cycle inventory (LCI) datasets are critical to conduct life cycle assessment (LCA) of concrete products. Obtaining these values from local practice is necessary to provide accurate assessment results that reflect real-life scenarios. The datasets for the recycling process of construction and demolition waste into recycled concrete aggregates (RCA) in the city of Abu Dhabi, United Arab Emirates are currently unavailable. Accordingly, this research aims to determine a detailed environmental LCI dataset for the production of RCA in Abu Dhabi. An extensive investigation of the RCA production practice was performed to highlight the input and output of each process unit. The methodology proposed by the International Standards Organization (ISO) to build an LCI (ISO 14040) was adopted. The resulting environmental LCI value for RCA production was determined to be 6.67x10 kg CO2eq per kilogram of produced RCA. Research findings serve as a benchmark to evaluate the environmental sustainability of RCA and RCA-based products in a holistic LCA study, while also enriching the LCI of the city of Abu Dhabi.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116655262","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}

引用次数: 1

Rate-Dependent Cyclic Lateral Load Test on a Single Pile in Sand 砂土中单桩速率相关循环侧向荷载试验

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.231

N. R. Shrestha, M. Saitoh, A. Saha, C. S. Goit

引用次数: 2

Fresh and Hardened Properties of Engineered Geopolymer Compositewith MgO 含氧化镁工程地聚合物复合材料的新鲜和硬化性能

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.244

M. Hossain, K. Hossain, T. Manzur, M. Hasan, D. Sood

{"title":"Fresh and Hardened Properties of Engineered Geopolymer Composite\u0000with MgO","authors":"M. Hossain, K. Hossain, T. Manzur, M. Hasan, D. Sood","doi":"10.11159/iccste20.244","DOIUrl":"https://doi.org/10.11159/iccste20.244","url":null,"abstract":"In this paper, the early results of an ongoing investigation on self-healing engineered geopolymer composites (EGC) are presented. The EGC was developed using powder based alkali activators and MgO was added as self-healing agent. Two types of source materials were used to produce EGC. One EGC mix had slag and class C fly ash as source materials and termed as binary mix. The other one had slag, class C fly ash and class F fly ash and termed as ternary mix. Setting time, slump flow, fresh density and rheology were measured as fresh properties of the developed geopolymer composites. As hardened properties, compressive and direct tensile strengths were evaluated. It was observed that addition of MgO delayed the setting time of both the EGC mixes. The rheology of the developed geopolymer mixes complemented the hardened properties of the mixes. It was found that binary geopolymer mix exhibited superior performance as compared to its ternary counterpart due to presence of class C fly ash only that ensured higher amount of CaO. It was also observed that EGC, developed in the present study, experienced strength values (both compressive and direct tensile) that are comparable to the values of the previous studies even with the addition of MgO. Moreover, strain hardening characteristic was observed for both EGC mixes under direct tension test. Hence, it is evident that the initial outcomes of the experimental investigation are quite promising and exhibit the importance of conducting further comprehensive studies in order to develop design guidelines for EGC with self-healing capability.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129631689","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}

引用次数: 1

Pipe Replacement Assessment prior to Leakage in Urban Areas Using Big Data Analytics 基于大数据分析的城市管道泄漏前更换评估

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2019-06-01 DOI: 10.11159/ICCSTE19.171

Manatsawee Nawik, Kanjana Sirapongpairoj, Pathomphong Phannurat

引用次数: 0

Structural Health Monitoring Optimization For Similar Structures Using A Hierarchical Bayesian Update 基于层次贝叶斯更新的相似结构健康监测优化

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2019-06-01 DOI: 10.11159/ICCSTE19.183

C. Geara, R. Faddoul, A. Chateauneuf, W. Raphael

{"title":"Structural Health Monitoring Optimization For Similar Structures Using A Hierarchical Bayesian Update","authors":"C. Geara, R. Faddoul, A. Chateauneuf, W. Raphael","doi":"10.11159/ICCSTE19.183","DOIUrl":"https://doi.org/10.11159/ICCSTE19.183","url":null,"abstract":"One of the most important issues in civil engineering is the detection of structural damages affecting the system performance at an early stage in order to prevent any catastrophic results. Two main approaches are adopted for structure monitoring: (i) periodical inspections and (ii) permanent monitoring. However, when relying on inspection results only, damages occurring between two consecutive inspections can not be detected which can be dangerous depending on the severity of the damage. Hence, for cost effective results, it is often recommended to permanently monitor structures using sensors in order to have continuous information about every single element of the structure. Since the implementation of such instruments is costly, one must optimize their configuration, number and location wise, in order to maximize the probability of detecting damages with a limited number of sensors. This configuration can be optimized, furthermore, when monitoring similar structures having at least one property in common. Thus, in this paper, we propose a methodology that optimizes the configuration of sensors for several similar structures by a genetic algorithm, and uses the obtained data in order to update, accordingly, the elements’ properties (i.e. The rigidity, the Young modulus) for each structure through a hierarchical Approximate Bayesian Computation (ABC). This methodology considers all uncertainties associated with the precision of the sensors results, the mechanical model and the degradation of the elements and takes advantage of the results obtained for any structure in order to update the information of all other similar structures which could save time, costs, and give more accurate results. A numerical application on two concrete frame structures is presented to illustrate the proposed methodology.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127609634","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}

引用次数: 0

Effect of calcium enriched waste on physiochemical properties of stabilized subgrade soil 富钙废物对稳定路基土理化性质的影响

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2019-06-01 DOI: 10.11159/ICCSTE19.196

Amit Kumar, D. K. Soni, A. Etemad

{"title":"Effect of calcium enriched waste on physiochemical properties of stabilized subgrade soil","authors":"Amit Kumar, D. K. Soni, A. Etemad","doi":"10.11159/ICCSTE19.196","DOIUrl":"https://doi.org/10.11159/ICCSTE19.196","url":null,"abstract":"Generation of waste from the various industries causes harmful impact to environment if there has no safe management for their disposal or reuse. The construction industries have ability to reuse or utilize different types of solid wastes. The waste from poultry farms in the form of eggshell also cause problems to the environment and need some utilization. The eggshell powder (ESP) is enriched with natural lime; therefore, it can be used for soil stabilization. In the present paper, eggshell powder was used along with sodium chloride (NaCl) and polypropylene fiber (PPF) to study their influence on physicochemical properties of soil. The soil samples were subjected to ten cycles of freeze-thaw before examining the pH of respective sample. Eggshell powder (3%, 6% and 9%), sodium chloride (2%, 4% and 6%) and polypropylene fiber (0.05%, 0.1% and 0.15%) were used and design of experiments was developed using Taguchi technique. Results showed that inclusion of these materials had significant effect on the pH and unconfined compressive strength of subjected soil against harsh environmental conditions, although the relation between pH and UCS was found non-linear.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115747648","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}

引用次数: 0

Distributed fibre-optic technology for security monitoring of a structural load of road and motorway tunnels 分布式光纤技术在公路隧道结构荷载安全监测中的应用

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2019-06-01 DOI: 10.11159/ICCSTE19.198

D. Hrubý, S. Kepak, P. Mec, J. Cubik, S. Zabka, V. Vasinek

引用次数: 0