High School Gymnasium Roof Truss Support Collapse

被引：3
|
作者：
Tanzer, Aaron [1 ]
机构：
[1] Lehigh Testing Labs Inc, POB 903308,W Basin Rd, New Castle, DE 19720 USA
来源：
JOURNAL OF FAILURE ANALYSIS AND PREVENTION | 2011年 / 11卷 / 03期
关键词：
Bending; Compression; Distortion; Ductile fracture; Failure analysis; Fusion welded joints; Mechanical behavior;
D O I：
10.1007/s11668-011-9440-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Roof truss supports from a high school gymnasium were evaluated after the roof collapsed under a heavy load of snow. The roof collapsed when the truss supports buckled. Three significant structural deficiencies were identified during the evaluation: (1) Truss supports were not gusseted, allowing for side-to-side movement. (2) Yield strength of the support was 9% below the minimum specified yield strength specified for the base material, ASTM A36. (3) Full penetration was not achieved on the butt weld between the truss and support.
引用
收藏
页码：208 / 214
页数：7
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