（1 中建八局第三建设有限公司， 南京 210046； 2 同济大学建筑工程系， 上海 200092）

［摘要］某钢结构工程结构不规则，部分节点的构造与受力相当复杂，需要通过模型试验来研究节点在最不利工况下的受力性能。选取了该工程中两个关键节点，经过合理的简化，设计了模型节点试验。通过单调静力加载试验，研究了节点的试验现象、破坏模式、测点应变等，指出了节点相对薄弱的地方，验证了节点在设计荷载下的安全性。通过两个复杂节点的研究过程，给出了复杂节点进行模型试验研究的一般思路，可以用于指导实际结构工程的设计。

［关键词］钢节点； 试验设计； 单调加载

中图分类号： TU391 文献标识码： A文章编号：  1002-848X(2016)S2-0383-04

Model experiment study on complicated joints for a steel structure

Huang Hai1， Wang Guilin1， Guo Kunrui2， Zhao Zhitao1， Wang Honghao1， Zhang Bowei1

（1 The Third Construction Co., Ltd. of China Construction Eighth Engineering Division， Nanjing 210046, China;

2 Department of Structural Engineering， Tongji University， Shanghai 200092， China）

Abstract: A steel structure has complex shape, the construction and mechanical characteristic of some joints is very complicated. Thus model test is needed to study its performance under various loads. Two key joints were chosen and the model joints were designed. During static loading test, experiment phenomenon, failure mode and strains were recorded. The weak part of joints were got and the reliability and safety of joints under the design load were verified. From the research process of the two joints, the general way of evaluation of complicated joints was given. That can be adopted for structural engineers in design.

Keywords: steel joint； experiment design； monotonic load

作者简介：黄海，高级工程师。

通信作者：郭坤睿，硕士研究生，Email：guokunrui@tongji.edu.cn。