发布求助
文献互助 智能选刊 最新文献

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures最新文献

筛选
英文 中文
European Harmonized Design for Membrane Structures 欧洲膜结构协调设计
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0956
J. Uhlemann, N. Stranghöner
{"title":"European Harmonized Design for Membrane Structures","authors":"J. Uhlemann, N. Stranghöner","doi":"10.2749/prague.2022.0956","DOIUrl":"https://doi.org/10.2749/prague.2022.0956","url":null,"abstract":"Numerous activities of the last years to harmonize and standardize design procedures for membrane structures made from structural textiles or foils lead to a new European standard expected to be published in 2022: CEN/TS 19102 “Design of tensioned membrane structures”. This document is a milestone on the path to a Eurocode for membrane structures. First time it provides unified design rules harmonized among many experts in the field across Europe. It covers coated and uncoated fabrics as well as foils, mechanically as well as pneumatically prestressed structures. Ultimate and serviceability limit state approaches are based on the concepts of EN 1990. The new standard gives the frame for materials and their requirements, static verification of materials and connections, and it defines required experimental tests. It is also planned to provide execution rules together with the design rules in order to ensure reliable and safe membrane structures. This contribution gives an overview of the new standard and shows the approaches by means of examples.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","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":"131516614","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
Beam-column behaviour of stainless steel I-section members 不锈钢工字截面构件的梁柱性能
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0369
N. Feber, M. Jandera, B. Rossi
{"title":"Beam-column behaviour of stainless steel I-section members","authors":"N. Feber, M. Jandera, B. Rossi","doi":"10.2749/prague.2022.0369","DOIUrl":"https://doi.org/10.2749/prague.2022.0369","url":null,"abstract":"Stainless steel beam-columns were experimentally and numerically investigated in this study. All members were subjected to compression and major axis bending induced by an eccentricity of the compressive load. The loading eccentricities for the tests varied to provide a wide range of bending moment-to-axial load ratios. The experimental program covers ordinary-welded and laser-welded I-section specimens made of stainless steel. Material tensile coupon tests and initial geometric imperfection measurements are also described in detail. Measurements of initial imperfections were performed using two different methods, using a mechanical dial and laser scanning. The test results were subsequently used for a validation of a finite element (FE) model, developed in ABAQUS software to replicate the beam-column behaviour. The accuracy of the models with the two combinations of local and global imperfections were evaluated by comparison with the test results.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"100 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":"131553894","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
Numerical Investigation of Slab-Column Connections with Various Reinforcement Ratios 不同配筋率下板柱连接的数值研究
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1410
A. Waghmare, A. Ramaswamy
{"title":"Numerical Investigation of Slab-Column Connections with Various Reinforcement Ratios","authors":"A. Waghmare, A. Ramaswamy","doi":"10.2749/prague.2022.1410","DOIUrl":"https://doi.org/10.2749/prague.2022.1410","url":null,"abstract":"This work considers three-dimensional non-linear finite element models (FEMs) to obtain insight into the contribution of flexural reinforcement ratio to the failure mode of slab-column connections. The correlation between punching and flexural-punching failure modes is examined. The models are calibrated to simulate the punching shear failure of reinforced concrete flat slabs under vertical monotonic loading and a constant gravity load in combination with monotonic unbalanced moment using a smeared concrete model, denoted as Concrete Damage Plasticity (CDP). In this regard, previously tested slab-column connections with various reinforcement ratios are selected from literature. The numerical outcomes are validated in terms of load-deflection (or moment-deflection) curves. The comparison between test and numerical results shows that the numerical analyses using the CDP model can accurately predict the rotation and punching capacity along with the failure mode of the slabs. As a parametric investigation, the FEM is utilised to characterise further the failure process of slabs with reinforcing ratios varied from 0.2% to 2%. The numerical results are compared with predictions from the design code ACI 318-19 and the Critical Shear Crack Theory.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"23 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":"132885560","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 Design of Link Slab in Steel-Concrete Composite Bridge 钢-混凝土组合桥梁连接板试验设计
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1926
Liang Xiao, Q. Su, Fu-Ming Wang
{"title":"Experimental Design of Link Slab in Steel-Concrete Composite Bridge","authors":"Liang Xiao, Q. Su, Fu-Ming Wang","doi":"10.2749/prague.2022.1926","DOIUrl":"https://doi.org/10.2749/prague.2022.1926","url":null,"abstract":"The traditional simple-supported structure with continuous deck have the advantages of simple structure, clear stress, being suitable for prefabrication and assembly, and rapid construction. However, a large number of continuous bridge deck structures appear in practiacl bridge engineering. Prominent problems such as vulnerability and poor durability restrict its further promotion and application, and some even turn to \"first structure is simply supported, then structure is continuous\", which increases a large number of on-site construction and reduces the efficiency of prefabrication; especially when used in composite structure bridges. It also causes the problem of cracking control of the bridge slab concrete in the negative bending moment area of the continuous beam. Aiming at this engineering pain point, this paper proposes a new type of continuous structure of simply supported steel-concrete composite beam bridge deck. In order to study the static performance of the continuous bridge deck structure, this research designs a full- scale I-shaped segment test model and conducts a numerical analysis on it. The calculation results are compared with the full bridge model to verify its feasibility, preparing for a follow-up test.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"160 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":"133136938","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
Evaluation of Spectrum Compatible Bidirectional Seismic Input 频谱兼容双向地震输入的评价
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0654
Alan Rivera-Figueroa, L. A. Montejo
{"title":"Evaluation of Spectrum Compatible Bidirectional Seismic Input","authors":"Alan Rivera-Figueroa, L. A. Montejo","doi":"10.2749/prague.2022.0654","DOIUrl":"https://doi.org/10.2749/prague.2022.0654","url":null,"abstract":"We investigate 4 methodologies to generate sets of horizontal ground motion components compatible with a target RotD100 spectrum, including amplitude-scaling and different spectral- matching approaches. The sets generated are used as seismic input to bidirectional inelastic time history analyses of circular cross-section reinforced concrete single column piers. It is shown that the traditional approach of separately matching each horizontal component to the target RotD100 generate peak inelastic and total strain energy demands that are substantially larger than the demands imposed by sets of amplitude-scaled records. However, the sets generated by simultaneously modifying both components to direct match RotD100 provoked mean peak inelastic responses closer to the amplitude-scaled sets while reducing the variability in the estimates.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"46 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":"127197981","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
The assessment and condition survey of concrete prestressed bridges in the Czech railway network 捷克铁路网混凝土预应力桥梁评估与状况调查
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0868
Tomáš Dejmek, Filip Kramoliš, P. Ryjáček, Petr Komanec
{"title":"The assessment and condition survey of concrete prestressed bridges in the Czech railway network","authors":"Tomáš Dejmek, Filip Kramoliš, P. Ryjáček, Petr Komanec","doi":"10.2749/prague.2022.0868","DOIUrl":"https://doi.org/10.2749/prague.2022.0868","url":null,"abstract":"Over the last few years, a detailed survey of a large number of prestressed bridge structures, approximately halfway through their expected service life, has been carried out on the railway network in the Czech Republic. In addition to the detailed diagnostic survey, load capacity calculations have been carried out by a number of major consultancies. The majority of the structures were precast, however typical and atypical monolithic structures were also included.The results of the evaluation, typical defects, concrete quality and strengths, condition of prestressing reinforcement, an overall condition found, and results regarding load capacity are presented in this paper.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"6 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":"124233852","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
Replacing of a steel bridge by rotation around the longitudinal axis 通过绕纵轴旋转来替换钢桥
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0467
Dolejš Jakub, Drábek Vojtěch, Kolpaský Ludvík, Werunský Martin, Červenka Petr, Příbramský Vladimír, Ryjáček Pavel
{"title":"Replacing of a steel bridge by rotation around the longitudinal axis","authors":"Dolejš Jakub, Drábek Vojtěch, Kolpaský Ludvík, Werunský Martin, Červenka Petr, Příbramský Vladimír, Ryjáček Pavel","doi":"10.2749/prague.2022.0467","DOIUrl":"https://doi.org/10.2749/prague.2022.0467","url":null,"abstract":"This paper deals with a unique replacement of three bridge spans across the Hracholusky dam in the Czech Republic. The replacement was done by a longitudinal launching of the new bridge structure to the old one, their connection to each other and subsequent rotation of the bridge system around the longitudinal axis for 180°.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"107 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":"123533283","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
Enhancement in Indian Bridge Management System using analytics within BIM data model 在BIM数据模型中使用分析增强印度桥梁管理系统
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0903
S. Joshi, Sitarama Raju Sagi
{"title":"Enhancement in Indian Bridge Management System using analytics within BIM data model","authors":"S. Joshi, Sitarama Raju Sagi","doi":"10.2749/prague.2022.0903","DOIUrl":"https://doi.org/10.2749/prague.2022.0903","url":null,"abstract":"Indian Bridge Management System and its enhanced version Unified Bridge Management System (UBMS) like all BMS rely on successive visual observations to define status ratings of bridge components which are used for remedial interventions and critical management decisions. These systems are devoid of location details of distress and are reactive in regard to deterioration and risk models as they rely on such changes in ratings for interventions. Incorporating photogrammetric geospatial 3D drawing/model will bring critical hereto missing data to enhance effectiveness and efficiency of IBMS/UBMS. This paper is aimed to present a concept for adding geospatial details to IBMS/UBMS. This incorporation enables the usage of AI and machine learning for improved decision making and reporting. Analysis provides a predictive tool to estimate future distress and the progression of deterioration process and the impact it can have on the future performance. Inclusion of SHM data will also be possible.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"46 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":"123597918","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
Assessment of masonry arch bridges 砌体拱桥评定
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0562
T. Harrewijn, R. Vergoossen
{"title":"Assessment of masonry arch bridges","authors":"T. Harrewijn, R. Vergoossen","doi":"10.2749/prague.2022.0562","DOIUrl":"https://doi.org/10.2749/prague.2022.0562","url":null,"abstract":"This paper is about the assessment of masonry arch bridges in the Netherlands. A large part of the public road network in old city centres is still formed by masonry arch bridges. The general question of the local authorities is “can masonry arch bridges withstand motorised traffic including busses and occasionally heavy trucks?” Nonlinear finite element analysis in PLAXIS is applied for the assessment of the failure behaviour of the structure and its limits related to cracking and failure loading. A proof-loading of a real bridge increased the reliability of the calculation methodology. To assess a large group of single span masonry arch bridges, suggestions for a risk-based approach are made.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"63 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":"125851786","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 and Experimental Studies on Thermoelectric Energy Harvesters using Temperature Difference in Concrete Bridges 混凝土桥梁温差热电能量采集器的数值与试验研究
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0458
Kouichi Takeya, Yuri Kimura, E. Sasaki, S. Komori, J. Yoshida
{"title":"Numerical and Experimental Studies on Thermoelectric Energy Harvesters using Temperature Difference in Concrete Bridges","authors":"Kouichi Takeya, Yuri Kimura, E. Sasaki, S. Komori, J. Yoshida","doi":"10.2749/prague.2022.0458","DOIUrl":"https://doi.org/10.2749/prague.2022.0458","url":null,"abstract":"Thermoelectric energy harvesting was studied using the temperature difference in concrete bridges. A design of the heat sink unit of thermoelectric energy harvesters was parametrically analyzed using FE models. Prototype thermoelectric energy harvesters were fabricated and tested in a simple wind tunnel. The experiment was carried out on a concrete bridge. The concrete bridge accumulated thermal energy from sunlight, and the temperature difference with the air occurred. The thermal energy was harvested especially in daytimes. On the other hand, electric power was less generated at night-times than expected. The harvesting energy would be significantly improved if the problem is solved.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"32 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":"125930670","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信