风吸力下檩条承载性能中外规范比较
风吸力下冷弯薄壁檩条受力复杂,准确计算其承载性能较困难,中外相关规范的计算规定不尽相同。全面总结了GB 50018、CECS 102、EN 1993-1-3、AISI S100及AS/NZS 4600等规范针对风吸力下冷弯薄壁檩条承载性能的相关设计规定,重点分析了各规范采用的设计方法、计算模型及对屋面系统约束效应的考虑存在的差异,并比较了18组常用C形和Z形截面檩条的计算结果。对比表明,对于风吸力下锁螺钉屋面系统中檩条的稳定承载力,不设拉条时,GB5 0018因未考虑屋面系统的约束效应,计算结果过于保守,EC 3和AISI的计算结果较接近;设2道拉条时,屋面约束效应明显弱化,GB 50018和...
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Main Authors: | 栾蔚, 李元齐 |
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Format: | Article |
Language: | zho |
Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2017-01-01
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Series: | Jianzhu Gangjiegou Jinzhan |
Subjects: | |
Online Access: | http://steelpro.tongji.edu.cn/thesisDetails#10.13969/j.cnki.cn31-1893.2017.06.010 |
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