Precast concrete double-tee connections, part 1: Tension Behavior

被引:37
|
作者
Naito, Clay [1 ]
Pao, Liling [2 ]
Peter, Wesley [3 ]
机构
[1] Lehigh Univ, Dept Civil & Environm Engn, Bethlehem, PA 18015 USA
[2] Thornton Tomasetti, Philadelphia, PA USA
[3] SK&A Consulting Struct Engineers, Washington, DC USA
来源
PCI JOURNAL | 2009年 / 54卷 / 01期
基金
美国国家科学基金会;
关键词
Chord; connection; diaphragm; double-tee; flange connection; seismic; tension response; testing; web; welded-wire reinforcement; WWR; SEISMIC DESIGN METHODOLOGY; DIAPHRAGMS;
D O I
10.15554/pcij.01012009.49.66
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper focuses on the tension response of connections compared with design expectations and the contribution they provide in flexural resistance of the diaphragm. The pretopped flange connections were found to resist a moderate tensile force over a large deformation range. Flange connections in topped-diaphragm systems provided a high initial tensile. resistance but returned to the untopped response once the topping reinforcement failed. The strengths of both chord and flange connections were overpredicted by PCI equations due to brittle modes of weld failure. Consequently, attention should be paid to field weld alignment, and simplified models were developed to more accurately estimate the deformation capacity and strength.
引用
收藏
页码:49 / 66
页数:18
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