Performance evaluation of self-centring steel-braced frame

被引：13

作者：

Rahgozar, Navid ^{[1
]}

Moghadam, Abdolreza S. ^{[2
]}

Rahgozar, Nima ^{[1
]}

Aziminejad, Armin ^{[1
]}

机构：

[1] Islamic Azad Univ, Dept Struct Engn, Sci & Res Branch, Tehran, Iran

[2] IIEES, Struct Engn Res Ctr, Tehran, Iran

来源：

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS | 2017年 / 170卷 / 01期

关键词：

cables & tendons; statistical analysis; steel structures;

D O I：

10.1680/jstbu.15.00136

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A modern self-centring braced frame equipped with post-tensioned cables and replaceable fuses is capable of rocking on its foundation during an earthquake. The aim of this paper is to evaluate the seismic performance of a controlled-rocking braced frame and compare its efficiency with a similar fixed-based braced frame. A non-linear time history analysis is conducted for a set of archetypes, varying in height, seismic design category, and seismic frame type. A sensitivity analysis is performed to examine the effects of modelling and ground motion parameters. Results indicate that the rocking system is capable of enhancing the performance of a conventional braced frame by features such as the controlled rocking mode, self-centring and concentrated damage to replaceable fuses.

引用

页码：3 / 16

页数：14

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