The behaviour of semi-rigid through-diaphragm connection between steel I-section beams and tubular columns under monotonic and cyclic loading

单调和循环荷载作用下钢工字形梁与管柱之间的半刚性穿板连接性能

基本信息

批准号：
EP/I020489/1
负责人：
Tak Ming Chan
金额：
$ 13.1万
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：
2011
资助国家：
英国
起止时间：
2011 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FI020489%2F1
关键词：
behaviour semi rigid through diaphragm

项目摘要

Employing a combined programme of full-sized testing and computational simulations this project will characterise the novel semi-rigid through-diaphragm connections between steel tubular columns and I-section beams. Open I-sections are the most common and efficient horizontal members to support the flooring system. The vertical members can either be open H-sections or tubular (structural hollow) sections. The latter has shown an increasing popularity due to its structural efficiency including high strength to weight ratio, high torisonal stiffness and pleasant appearance. In particular, circular and elliptical hollow sections possess inherent curvatures which allow architects to express the steel-framed buildings in a creative and exciting architecture in the built-environment. However, these advantages are often under-exploited due to the perceived difficulties on cost effective connections between I-beams and tubular columns. There is also a relative lack of design guidance in particular the reliability of semi-rigid connections under cyclic loading which will provide essential scientific information including energy dissipative behaviour for seismic design. New test and numerical results from this research for both monotonic and cyclic loadings will be used to prepare design rules for steel structures with sustainable credentials to be executed anywhere in the world. It will also help the UK to meet its strategy for sustainable construction.

采用全尺寸测试和计算模拟的组合程序，该项目将表征钢管柱和I型梁之间的新型半刚性穿透连接。开放式I型截面是支持地板系统的最常见和高效的水平成员。垂直成员可以是开放的H型，也可以是管状（结构空心）部分。由于其结构效率，包括高强度与重量比，高圆形刚度和宜人的外观，后者的受欢迎程度越来越高。尤其是，圆形和椭圆形的空心部分具有固有的曲线，使建筑师可以在建筑环境中的创意和令人兴奋的建筑中表达钢制建筑物。但是，由于在I梁和管状柱之间存在成本效益连接的困难，这些优点通常被低估了。还相对缺乏设计指导，特别是在环状载荷下半刚性连接的可靠性，这将提供基本的科学信息，包括地震设计的能量耗散行为。这项研究的新测试和数值结果将用于单调和循环负载，以准备具有可持续证书的钢结构设计规则，该规则将在世界任何地方执行。它还将帮助英国达到其可持续建筑战略。