Rehabilitation of Steel Moment Connections with Cover Plates under Initial Loading

Rehabilitation of Steel Moment Connections with Cover Plates under Initial Loading
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初始荷载下带盖板的钢弯矩连接的修复

DOI:
10.1260/1369-4332.14.5.789
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发表时间:
2011-10
影响因子:
2.6
通讯作者:
--
中科院分区:
工程技术4区
文献类型:
--
作者:

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修复的钢节点与新建和加固的钢节点不同,因为在修复过程中,连接会受到初始荷载的影响。在这种情况下,将发生显著的应力重分布。因此,新安装和加固连接的设计方法不适用。本文研究了盖板修复问题。采用有限元分析方法模拟了有初始载荷时的修复过程。考虑了不同初始荷载作用下盖板与原连接之间的弯矩分布。提出了一种改进的盖板修复过程设计方法。
Rehabilitated steel moment connections differentiate from newly erected and strengthened ones in that the connections are subject to initial loading during the rehabilitation process. In this circumstance, significant stress redistribution will take place. Therefore, the design method for a newly erected and strengthened connection is not applicable. This paper investigates cover-plate rehabilitation. Finite element analysis was conducted to simulate the rehabilitation process with initial loading. The moment distributions between the cover plates and the original connections take the different initial loading into account. A revised design procedure for rehabilitation process using cover plates is proposed.
DOI: --
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