Resilient and sustainable steel frame with innovative post-tensioned connections and rate-dependent passive dampers for multi-hazard resistant design

弹性且可持续的钢框架，具有创新的后张连接和速率相关的被动阻尼器，用于抗多种危险的设计

基本信息

批准号：
EP/K006118/1
负责人：
Theodore Karavasilis
金额：
$ 12.53万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK006118%2F1
关键词：
Resilient sustainable steel frame innovative

项目摘要

This project will investigate a steel moment-resisting frame with innovative post-tensioned beam-column connections and rate-dependent (elastomeric or fluid) passive dampers for multi-hazard resistant design. The overall research objectives are: a) decrease in the construction cost, rapid assembly on-site, simple deconstruction, adaptability, and potential for reuse of structural members; b) enhanced progressive collapse resistance and reparability against a sudden loss of column simulating bomb blast or heavy vehicle collision (terrorist attacks); and c) easy inspection/repair allowing almost immediate return to service after a strong (design) earthquake as well as increased life safety under a very strong (maximum credible) earthquake. The project will develop fundamental knowledge, design details, and design methods for the proposed steel frame by conducting integrated design, analysis and experimental research. In particular, the project will: a) develop design details and criteria for an innovative post-tensioned connection; b) experimentally evaluate the behaviour of the post-tensioned connection with large-scale monotonic and cyclic tests simulating a loss of column scenario and seismic loading, respectively; c) evaluate the seismic performance and the progressive collapse resistance of the proposed steel frame; d) develop a practical seismic design procedure for the proposed steel frame in the context of the European seismic design standard-Eurocode 8; and e) compare the costs and sustainability aspects of constructing the proposed steel frame and a conventional steel moment-resisting frame.The project will go beyond the state-of-the-art in the field of minimal-damage structural systems; significantly improve the UK's competitiveness in structural engineering; meet important national priorities related to sustainability and resilience; and align with EPSRC's global, economic and societal challenge themes.

该项目将研究一个具有创新的后张梁柱连接和速率依赖性（弹性或流体）的被动阻尼器的钢制矩框架，以抗多危险的设计。总体研究目标是：a）施工成本的降低，现场快速组装，简单的解构，适应性以及重复使用结构成员的潜力； b）增强了渐进式崩溃的抵抗力和可恢复性，以突然损失模拟炸弹爆炸或重型车辆碰撞（恐怖袭击）； c）易于检查/维修，可以在强烈（设计）地震（设计）地震（最大可信）地震下几乎立即恢复服务。该项目将通过进行集成的设计，分析和实验研究来为拟议的钢制框架开发基本知识，设计细节和设计方法。特别是，该项目将：a）为创新的后张紧联系制定设计细节和标准； b）通过大规模单调和循环测试分别模拟柱场景和地震载荷的损失，通过实验评估后张紧联系的行为； c）评估所提出的钢框架的地震性能和渐进式塌陷抗性； d）在欧洲地震设计标准欧洲8号的背景下，为拟议的钢架制定了实用的地震设计程序； e）比较构建拟议的钢制框架和常规钢制瞬间框架的成本和可持续性方面。该项目将超越最小破坏性结构系统领域的最新面积；显着提高英国在结构工程方面的竞争力；符合与可持续性和韧性有关的重要国家优先事项；并与EPSRC的全球，经济和社会挑战主题保持一致。