局部承压圆钢管混凝土柱力学性能研究
为了研究不同截面形状垫块作用下圆钢管混凝土柱的局部承压性能,进行了14个试件的试验研究,考察了垫块截面形状、局部承压面积比和端板厚度对局部承压圆钢管混凝土柱破坏形态、荷载-变形曲线及承载力的影响。结果表明,垫块截面形状对局部承压圆钢管混凝土柱破坏形态的影响较小,但方形垫块作用试件的承载力和荷载-变形曲线的初始斜率略高于圆形垫块作用试件。在确定钢材和核心混凝土本构模型的基础上,建立有限元模型对局部承压圆钢管混凝土柱的力学性能进行了模拟,总体上模拟结果与试验结果符合较好。最后,根据研究结果修正了以往圆钢管混凝土柱局部承压承载力的计算方法。...
| Published in: | Jianzhu Gangjiegou Jinzhan |
|---|---|
| Main Authors: | 杨有福, 何彦君 |
| Format: | Article |
| Language: | Chinese |
| Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2016-01-01
|
| Subjects: | |
| Online Access: | http://steelpro.tongji.edu.cn/thesisDetails#10.13969/j.cnki.cn31-1893.2016.06.002 |
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