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Crack resistance test of interior joints with abrupt reduction in beam and column section in reinforced concrete frame(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年04期
Page:
77-81
Research Field:
Publishing date:
2009-08-20

Info

Title:
Crack resistance test of interior joints with abrupt reduction in beam and column section in reinforced concrete frame
Author(s):
WU Tao; LIU Bo-quan; XING Guo-hua; YAO Xian-gui; YANG Le
School of Civil Engineering,Chang’an University,Xi’an 710061,Shaanxi,China
Keywords:
structure engineering;  RC frame;  abnormal interior joint;  crack resistance
PACS:
TU375.4
DOI:
-
Abstract:
Six specimens of abnormal interior joints were tested under reversed cyclic loading. Experiments were carried out to investigate the influence of joint core dimensions and axial compression ratio on crack resistance of abnormal joints. The results show that: cracks mainly appear in the minor core (determined by the small beam and the top column); the crack resistance loads are from 50% to 60% of the ultimate load of abnormal interior joints, and the crack resistance is worse than that of ordinary joints; the crack resistance capacity is chiefly provided by the minor core concrete, and axial compression ratio is a significant parameter to increase the crack resistance capacity. A theoretical formula of crack resistance capacity was proposed, and it can be served as reference for engineering practice. 5 tabs, 2 figs, 9 refs.

References:

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Last Update: 2009-08-20