Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)最新文献_第2页

Evacuation Planning In Natural Disaster Using Multi ObjectiveOptimization Approach: The Rohingya Refugee Crisis in Bangladesh 基于多目标优化方法的自然灾害疏散规划:孟加拉国罗兴亚难民危机

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.331

Md. Ridwanur Rahman, Samia Zakir Sarothi, Tanvir Mustafy

引用次数: 0

Performance of Steel I-Beams Strengthened by Fastening Hybrid FRPStrips 复合frp筋加固工字钢的性能研究

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.240

Omnia R. AbouEl-Hamd, A. Sweedan, Bilal El-Ariss

{"title":"Performance of Steel I-Beams Strengthened by Fastening Hybrid FRP\u0000Strips","authors":"Omnia R. AbouEl-Hamd, A. Sweedan, Bilal El-Ariss","doi":"10.11159/iccste20.240","DOIUrl":"https://doi.org/10.11159/iccste20.240","url":null,"abstract":"Fiber-Reinforced Polymers (FRPs) have been widely used in strengthening steel structures. Few researches were conducted to verify the adequacy of strengthening steel structures by fastening FRPs. The current paper reports on the outcomes of an experimental study aimed at strengthening steel I-beams by fastening hybrid FRP (HFRP) strips. A total of ten UB203x102x23 beams were tested in a four-point loading setup. Steel bolts were used to fasten the HFRP strips to the beam bottom flange. The effect of HFRP length was assessed by considering three scenarios (1,620, 1,170 and 810 mm) that correspond to 90%, 65% and 45% of the clear span length of tested beams. Single and double HFRP strips were utilized to evaluate the effect of HFRP thickness on the performance of the strengthened beams. Staggered and uniform bolt arrangements were used to assess the effect of bolt arrangement on the performance of the fastened systems. All strengthened beams exhibited better yield and ultimate strength as compared to the control beam. Fastening two HFRP strips with lengths of 90% of the beam clear span revealed 21% enhancement in the ultimate capacity of the strengthened beam.","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":"122663780","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

Numerical Studies on the Effects of Mooring Configuration and lineDiameter on the Restoring Behaviour of a Turret- Moored FPSO 系泊形式和缆绳直径对转塔系泊FPSO恢复性能影响的数值研究

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.321

I. A. Ja’e, Montasir Osman Ahmed Ali, A. Yenduri

{"title":"Numerical Studies on the Effects of Mooring Configuration and line\u0000Diameter on the Restoring Behaviour of a Turret- Moored FPSO","authors":"I. A. Ja’e, Montasir Osman Ahmed Ali, A. Yenduri","doi":"10.11159/iccste20.321","DOIUrl":"https://doi.org/10.11159/iccste20.321","url":null,"abstract":"Restoring behaviour of a mooring system is majorly dictated by several factors including, pretension, mooring line material, azimuth angle, mooring line diameter and fairlead angle. Mooring line behaviour plays significant role in controlling the dynamic motions of floating offshore platforms. Hence, studying the parameters affecting mooring line responses is a very important aspect in the hydrodynamic analysis of FPSO. The primary aim of this paper is to investigate the influence of mooring line configurations in different wave headings and mooring line diameter on the restoring behaviour of a Turret-Moored FPSO. Force-excursion relationship of the mooring system is determined using an in-house developed MATLAB code, named MLQSC. Catenary mooring line was adopted in the study, consisting of Chain-Steel wire-Chain, and analyse using Quasi static analysis approach. Four (4) mooring configurations considered are Evenly distributed, 3x4, 4x3 and 6x2 in all cases with respect to 30,35,40 and 45-degree wave headings. The restoring behaviour of mooring configurations considered (consisting of 12 mooring lines) was observed to decrease with an increasing wave heading. Furthermore, the restoring behaviour was observed to decrease with increase in mooring line diameter which by implication increases the corresponding permissible excursion.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"31 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":"125023849","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: 3

Properties of Lightweight Self-consolidating Fibre Reinforced Concrete 轻质自固结纤维增强混凝土的性能研究

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.245

K. Hossain, I. N. Celasun, K. M. Y. Julkarnine, M. Hossain

引用次数: 0

Early-Age Strength and Workability of Basalt Fiber ReinforcedConcrete Made with Recycled Aggregates – A Pilot Study 再生骨料制备玄武岩纤维增强混凝土的早期强度和和易性试验研究

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.226

S. Shoaib, Hilal El-Hassan, Bilal El-Aris, T. E. Maaddawy

{"title":"Early-Age Strength and Workability of Basalt Fiber ReinforcedConcrete Made with Recycled Aggregates – A Pilot Study","authors":"S. Shoaib, Hilal El-Hassan, Bilal El-Aris, T. E. Maaddawy","doi":"10.11159/iccste20.226","DOIUrl":"https://doi.org/10.11159/iccste20.226","url":null,"abstract":"This research presents the combined effect of replacing natural aggregates by recycled concrete aggregates (RCA) and incorporating basalt fibers on the workability, 7-day compressive strength, and 7-day splitting tensile strength of concrete mixes. Three target design compressive strengths were used (30, 45, and 60 MPa). Untreated RCA were used in addition to two types of basalt fibers at volume fractions ranging from 0 to 3%. The basalt fiber types used in this work had lengths of 20 and 43 mm. Locally available desert dune sand was utilized in concrete mixes as a sustainable replacement to conventional crushed fine aggregates. The experimental results showed that the incorporation of basalt fibers resulted in a significant decrease in the workability of fresh concrete. The retention of 7day compressive strength in basalt fiber-reinforced RCA concrete was superior when the design strength was 30 MPa rather than 45 and 60 MPa. The 7-day splitting tensile strength of RCA-based concrete was effectively restored upon the addition of basalt fibers. It exceeded that of the control mixes with higher basalt fiber volume fractions and 43 mm-long basalt fibers.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"48 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":"123920948","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

Railway Tracks Detection of Railways Based On Computer VisionTechnique and GNSS Data 基于计算机视觉技术和GNSS数据的铁路轨道检测

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.269

Ahmed Akl Mahmoud, G. Mohamed, E. Adel

{"title":"Railway Tracks Detection of Railways Based On Computer Vision\u0000Technique and GNSS Data","authors":"Ahmed Akl Mahmoud, G. Mohamed, E. Adel","doi":"10.11159/iccste20.269","DOIUrl":"https://doi.org/10.11159/iccste20.269","url":null,"abstract":"Railway networks are major components of any country’s infrastructure. In Egypt, the length of the railway network is 9570 km, where, 85% of the lines' movements are operated by mechanical signals. In July 2017, the Egyptian government launched a series of railway infrastructure projects aimed to modernize the Egyptian National Railways which includes the infrastructures rehabilitation for the network. This research focuses on developing an efficient low-cost framework using video camera and computer vision techniques for automatic railway track detection. A computer vision technique is used for automatic detection of railway tracks. Interior orientation parameters are extracted as part of the camera calibration task. Bundle adjustment calibration technique is used to compute the exterior orientation parameters based on selected ground control points. Hence, the eye fish effect of the images is removed and orthogonal images for the railway tracks are constructed using matching and feature extraction algorithms. The framework is tested on a dataset of a railway network with an approximate length of 20 km. The accuracy of the results is compared with a field survey data conducted to the same area using conventional surveying instruments such as Total station and Global Navigation Satellite System (GNSS). The proposed framework enables automatic extraction of railway tracks and its relationship with surrounding features, which contributes to quality control and assurance procedures for field collected data. The framework also offers a method for continuous and low-cost monitoring of the railway network. This will help to rapidly assess maintenance requirements for the network.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"28 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":"125212634","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: 2

A Model-Based Method for Damage Localization and Qualification in aCable-Stayed Bridge 基于模型的斜拉桥损伤定位与鉴定方法

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.304

M. A. Dehaghi, Maryam Montazeri, G. G. Amiri, A. Hosseinzadeh

{"title":"A Model-Based Method for Damage Localization and Qualification in a\u0000Cable-Stayed Bridge","authors":"M. A. Dehaghi, Maryam Montazeri, G. G. Amiri, A. Hosseinzadeh","doi":"10.11159/iccste20.304","DOIUrl":"https://doi.org/10.11159/iccste20.304","url":null,"abstract":"To propose an effective optimization-based model updating and damage detection method, not only a damage-sensitive cost function is required, but also a strong and stable optimization algorithm should be employed. This paper is aimed at presenting a method in which both the mentioned challenges are considered for damage identification in cable-stayed bridges. For this purpose, the damage detection problem is formulated as a modal flexibility-based model updating approach and it is solved utilizing Democratic Particle Swarm Optimization (DPSO) algorithm. DPSO is a modified version of the standard PSO algorithm, which is developed for presenting a tackle the drawbacks of the original PSO algorithm in terms of increasing the algorithm’s speed as well as decreasing the premature convergence rate. The efficiency of the method is demonstrated by studying different damage patterns on the numerical model of a cablestayed bridge. Almost all the obtained results indicate the good performance of the proposed method for the damage localization and quantification of the cable-stayed bridge using only the first several modes’ data.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"25 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":"130741558","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

Performance of Pile Cap Foundation with Respect to Cap Thickness 桩承台基础性能与承台厚度的关系

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.205

Soukayna El Hammouli, A. Hanna, Lan Lin, M. Khalifa

引用次数: 0

Earthquake Induced Liquefaction Potential of Paste Tailings: ShakingTable Results 膏体尾矿的地震液化势:振动表结果

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.159

Fahad Alshawmar, M. Fall

{"title":"Earthquake Induced Liquefaction Potential of Paste Tailings: Shaking\u0000Table Results","authors":"Fahad Alshawmar, M. Fall","doi":"10.11159/iccste20.159","DOIUrl":"https://doi.org/10.11159/iccste20.159","url":null,"abstract":"Highly densified tailings, such as paste tailings, are a novel technology of tailings (soils produced by mining activities) disposal and management. Paste tailings are generated from the significant dewatering of the slurry tailings produced in the mine processing plant. This technology provides numerous benefits to the mines, such as reduction of the dependency on conventional tailings dams with their associated risks (disastrous geotechnical and environmental failures) and the increase in water recovery and recycling. However, regulators are worried about liquefaction potential of paste tailings deposits in regions that are prone to earthquakes. Up to date, no investigations have been conducted to evaluate the liquefaction potential of paste tailings using a shaking table. Therefore, the purpose of this research is to evaluate the liquefaction potential of paste tailings under seismic loading conditions using one-dimensional shaking table equipment. The paste tailings were deposited in thin layers and were subjected to the atmospheric desiccation process in order to gain strength before performing the shaking table tests. The paste tailings deposit was subjected to a sinusoidal dynamic loading with a frequency of 1 Hz and peak horizontal acceleration of 0.13 g. The variation of pore-water pressure within paste tailings deposit was monitored during the shaking test. The test results showed that the paste tailings can be susceptible to liquefaction under the considered testing conditions.","PeriodicalId":307663,"journal":{"name":"Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)","volume":"39 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":"134044181","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

Vibration Induced By Rapid Impact Compaction on Granular Soils 颗粒土快速冲击压实引起的振动

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19) Pub Date : 2020-11-01 DOI: 10.11159/iccste20.272

O. Khaled, E. Spyropoulos, Omar Maalej

引用次数: 0