焊接残余应力对加强型节点力学性能影响研究
以翼缘板加强式和盖板加强式两类加强型节点为研究对象,采用ANSYS结构分析软件"生死单元"功能模拟了瞬态焊接过程,得到焊接残余应力场的分布,在此基础上,针对有、无考虑焊接残余应力的两种有限元模型,分析了残余应力对节点和荷载-位移滞回性能及脆性断裂特性等影响。研究结果表明,焊接残余应力对盖板加强型节点的脆性断裂影响大于翼缘板加强型节点,盖板加强式节点在梁端对接焊缝的边缘容易发生脆性断裂,在设计和施工时应予以注意并采取相应的防范措施。...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2013-01-01
|
| Series: | Jianzhu Gangjiegou Jinzhan |
| Subjects: | |
| Online Access: | http://steelpro.tongji.edu.cn/thesisDetails?columnId=40757641&Fpath=home&index=0 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|