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2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)最新文献

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Research on Leveling Accuracy Detection Device for Portable Elevator 便携式电梯调平精度检测装置的研究
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654597
Shuangchang Feng, Yanchun Liang, Jie Chen, Pengzhao Zhang
{"title":"Research on Leveling Accuracy Detection Device for Portable Elevator","authors":"Shuangchang Feng, Yanchun Liang, Jie Chen, Pengzhao Zhang","doi":"10.1109/ISTTCA53489.2021.9654597","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654597","url":null,"abstract":"According to the requirements of operation test in TSG T7001-2009, when the car runs up and down at normal speed with no load and full load respectively, the car leveling shall be good without abnormalities, that is, it shall meet the requirements of the accuracy of car leveling shall be within $pm 10mathbf{mm}$. The retention accuracy of car leveling shall be within $pm 20mathbf{mm}$. If the loading and unloading exceeds $pm 20mathbf{mm}$, it shall be corrected to within $pm 10mathbf{mm}$ in GBT 7588.1-2020. When measuring, the inspector usually uses a ruler to measure the vertical distance between the car sill and the landing door sill. It is necessary to squat on the ground and carefully observe the reading of the ruler. In places with insufficient light intensity, it is inconvenient and inaccurate to use flashlight and other lighting equipment. This paper designs a portable elevator leveling accuracy detection device, which can make the inspectors directly stand and read the leveling data without bending down. It can effectively improve the detection efficiency and reduce the labor intensity of detection.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123900779","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
Research on Layout and Operation Optimization Method of China Sea-Rail Combined Transport Station 中国海铁联运站布局与运行优化方法研究
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654470
Yan Cheng, M. Shen, Yang Yao, Zixu Shen
{"title":"Research on Layout and Operation Optimization Method of China Sea-Rail Combined Transport Station","authors":"Yan Cheng, M. Shen, Yang Yao, Zixu Shen","doi":"10.1109/ISTTCA53489.2021.9654470","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654470","url":null,"abstract":"Based on the development status and deficiencies of China's sea-rail combined transport, this paper systematically analyzes the functional layout and equipment configuration of typical European sea-rail combined transport yards. By drawing on the advanced experience of the sea-rail combined transport station layout in EU countries, combined with the development of China's sea-rail combined transport, using SLP and AHP methods to optimize the layout of China's sea-rail combined transport station, and put forward suggestions for the future development of China's sea-rail combined transport.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125738569","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
Strength experiment of soft soil solidified by composite powder of steel slag (SS) and ground granulated blast-furnace slag (GGBS) activated by caustic soda 烧碱活化钢渣（SS）和磨细高炉矿渣（GGBS）复合粉固化软土的强度实验
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654463
Xuying Wang, Jianye Zhao, Yunyun Xu, Z. Wang, Shuai Lv
{"title":"Strength experiment of soft soil solidified by composite powder of steel slag (SS) and ground granulated blast-furnace slag (GGBS) activated by caustic soda","authors":"Xuying Wang, Jianye Zhao, Yunyun Xu, Z. Wang, Shuai Lv","doi":"10.1109/ISTTCA53489.2021.9654463","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654463","url":null,"abstract":"The article uses SS and GGBS as the main raw materials to make composite powder, and NaOH as an activator to reinforce soft soil. Through the unconfined compressive strength test, the NaOH-stimulated SS-GGBS solidified soil was compared with the SS-GGBS solidified soil and cement-solidified soil. The study found that the strength of SS-GGBS solidified soil without NaOH does not change much with age, and is always a lower strength. NaOH can better excite SS-GGBS and greatly increase the strength of solidified soil. When the content is 5% to 6%, the excitation effect is the best. The strength of 5%NaOH-SS-GGBS solidified soil increases rapidly in the middle and late stages, and the strength of 28d 5%NaOH-SS-GGBS solidified soil is significantly higher than that of cement-solidified soil. The plasticity stage of 5%NaOH-SS-GGBS solidified soil is longer, and it should be larger when it reaches the peak, indicating better ductility.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129655663","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
Optimal comparison and selection of tower structure layout schemes 塔架结构布置方案的优化比较与选择
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654602
Xinmin Yu, Ji Cheng, Xin Ye, Jingfeng Guo, Bijian Chen
{"title":"Optimal comparison and selection of tower structure layout schemes","authors":"Xinmin Yu, Ji Cheng, Xin Ye, Jingfeng Guo, Bijian Chen","doi":"10.1109/ISTTCA53489.2021.9654602","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654602","url":null,"abstract":"In order to make the tower meet the requirements of lightest tower weight, beautiful appearance and convenient operation and maintenance under the premise of electrical function, taking the type III flat tangent tower zb29103 tension type II tower as an example, the optimization comparison and analysis of tower head type, tower body section, leg and other parts are carried out, in order to provide reference experience for similar projects and promote power development and construction.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130118695","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
Experimental Investigation on Bending Creep Properties of Hybrid Cross-laminated Timber Fabricated from Lumber and OSB 木材与OSB复合交叉层合材弯曲蠕变性能试验研究
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654640
Huan-huan Song, Zhiqiang Wang, Long Li
{"title":"Experimental Investigation on Bending Creep Properties of Hybrid Cross-laminated Timber Fabricated from Lumber and OSB","authors":"Huan-huan Song, Zhiqiang Wang, Long Li","doi":"10.1109/ISTTCA53489.2021.9654640","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654640","url":null,"abstract":"Given the nature of cross-laminated timber (CLT) with the orthogonal arrangement of layers, CLT is more prone to time-dependent deformation than other engineered wood, such as glulam. In order to explore and improve the bending creep properties for CLT, a 90-day bending creep test was carried out and the creep development law was analyzed for Hybrid CLT (HCLT) fabricated from SPF lumber and construction oriented strand board (COSB). The power law model was used to predicted the 50-year relative creep values for CLT and HCLT specimens. The results showed that the HCLT composed entirely of COSB panels had the largest relative creep (1.99). The HCLT that used COSB only as the transverse layer showed the best long-term bending creep performance, which relative creep was 0.36, and was smaller than regular CLT (0.86), demonstrating the potential for engineering applications.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128884133","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 on the effect of sewage on the performance of concrete 污水对混凝土性能影响的研究
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654668
Da-bin Xie, Lei Deng, Hongjia Liao, Jiang Han
{"title":"Study on the effect of sewage on the performance of concrete","authors":"Da-bin Xie, Lei Deng, Hongjia Liao, Jiang Han","doi":"10.1109/ISTTCA53489.2021.9654668","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654668","url":null,"abstract":"In this paper, the sewage produced in the production process of concrete mixing plant is used as mixing water, and the effect of sewage pH value, sediment chemical composition, water demand, strength activity index, and different mixing amounts of sewage on various properties of C30 concrete is studied in detail. Studies have shown that the produced sewage has a concentration of 14% and a pH of 12.4, which is a strong alkaline solution with a sediment strength activity index of 55%; under the same unilateral water consumption and moderate sewage mixing conditions, the performance of concrete is better than the benchmark. Continue to increase the content of concrete, the fluidity of the concrete will become worse, the workability will be reduced, and the strength will gradually increase; in the case of the “saturated water consumption”, the volume of sewage will increase, the concrete wrapping and fluidity will become better, and the slump retention will become worse. The setting time becomes shorter.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127915822","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
FRP Reinforced Masonry Structure and Concrete Structure FRP加固砌体结构和混凝土结构
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654721
Ling Hu
{"title":"FRP Reinforced Masonry Structure and Concrete Structure","authors":"Ling Hu","doi":"10.1109/ISTTCA53489.2021.9654721","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654721","url":null,"abstract":"FRP strengthening masonry structure and concrete structure technology is more and more widely used in engineering field in recent years. FRP material has become a very good material in reinforcement technology with its excellent characteristics. This paper mainly introduces the advantages of FRP such as light weight, high strength, corrosion resistance, and strong designability, and its disadvantages of anisotropy. In the two reinforcement methods, the effective bond length and the factors affecting the bond are proposed, and it is pointed out that the influence of various factors on the bond length should be studied in the future to reduce the occurrence of degumming in the two reinforcement methods.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126091979","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
Analysis of vertical bearing capacity of super-long piles in more fractured and softer rock masses 裂隙较软岩体中超长桩竖向承载力分析
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654639
Jinxi Wang, H. Tang, Jiangbo Xu
{"title":"Analysis of vertical bearing capacity of super-long piles in more fractured and softer rock masses","authors":"Jinxi Wang, H. Tang, Jiangbo Xu","doi":"10.1109/ISTTCA53489.2021.9654639","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654639","url":null,"abstract":"Previous studies capacity of rock-socketed piles have focused on the load bearing characteristics of intact and more intact rocks embedded in the pile end, while this paper focuses on the vertical load bearing analysis of piles in more fractured rock masses. Combined with the static load test on a high-rise project in Wuhan, the pile bearing capacity is estimated by different codes and compared with the measured results. The results show that: “Technical Code for Building Pile Foundations” and “Standard for Geotechnical Investigation of Tall Buildings” have a high estimate of the bearing capacity, which is on the dangerous side, while “Technical Code for Building Foundation in Hubei Province” has a small estimate of the bearing capacity, which is 2.4 times of the measured value. Pile length, pile diameter, rock socket depth and bedrock strength directly affect the estimation of bearing capacity, for the softer rock masses in the super-long pile codes estimation value deviation is large, must use static load test to determine the ultimate bearing capacity. The test results can be used as a reference for the design of super-long piles in more fractured and softer rock masses.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115816931","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
Calculation Method of Pushing Force for Multi-span Continuous Rigid Frame Bridge Closure Based on Linear Programming 基于线性规划的多跨连续刚构桥合闸推力计算方法
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654525
F. Sun, Miaomiao Fang, Jiaxin Liu
{"title":"Calculation Method of Pushing Force for Multi-span Continuous Rigid Frame Bridge Closure Based on Linear Programming","authors":"F. Sun, Miaomiao Fang, Jiaxin Liu","doi":"10.1109/ISTTCA53489.2021.9654525","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654525","url":null,"abstract":"At present, there is a significant shortcomings for solving multi-cross-continuous bridge, and the rigidity: (1) The analysis of the principle of combined mechanics is only applicable to conventional three-cross-continuous frame bridge, and multi-cross-continuous bridge overhead There are many times, it is difficult to seek the analysis; (2) Other methods are repeatedly tried more than the finite element software, with random, difficult to find the optimal solution, and multi-cross-continuous rigid bridge top push must be satisfied Multiple target values and constraints, so that it is difficult to solve the difficulty in solving the trial algorithm.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"312 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121175882","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
Research on the influence law of Frost Resistance and Chloride Ion Corrosion Resistance of Tunnel Lining Concrete in Alpine Region 高寒地区隧道衬砌混凝土抗冻、抗氯离子腐蚀影响规律研究
2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA) Pub Date : 2021-11-12 DOI: 10.1109/ISTTCA53489.2021.9654755
Libin Lin, Yixin Wang, Xiaoyan Li, Jiliang Wang, Song Xiao
{"title":"Research on the influence law of Frost Resistance and Chloride Ion Corrosion Resistance of Tunnel Lining Concrete in Alpine Region","authors":"Libin Lin, Yixin Wang, Xiaoyan Li, Jiliang Wang, Song Xiao","doi":"10.1109/ISTTCA53489.2021.9654755","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654755","url":null,"abstract":"To effectively improve cold regions tunnel lining concrete frost resistance and good performance of resistance to chlorine salt erosion, etc, through indoor test, analyzed the certain dosage range of fly ash or GGBS for tunnel lining concrete frost resistance and the influence law of the chlorine salt erosion resistance, further analysis of the lining concrete antifreeze performance associated with the chlorine salt erosion resistance of the contact. The research results show that adding proper amount of fly ash or slag powder can improve the concrete resistance to freeze-thaw damage and corrosion resistance to chlorine salt, 30% 25% fly ash or slag concrete has excellent resistance to freeze-thaw damage and the chlorine salt erosion resistance ability, and these two kinds of mineral admixture affect the performance of concrete durability related laws. The improvement of inner compactness of lining concrete is the main reason for this phenomenon.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125234964","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
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