|Table of Contents|

Comparative Analysis of Punching Shear Capacity for Reinforced Concrete Slabs(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2010年04期
Page:
44-56
Research Field:
Publishing date:
2010-12-20

Info

Title:
Comparative Analysis of Punching Shear Capacity for Reinforced Concrete Slabs
Author(s):
WEI Wei-wei1;  GONG Jin-xin1;  TIAN Lei1; 2
1. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China; 2. China Communications Water Transportation Planning and Design Institute Co. Ltd, Beijing 100007, China
Keywords:
reinforced concrete slab;  punching shear capacity;  code;  reinforcement ratio;  unbalanced moment
PACS:
TU375.2
DOI:
-
Abstract:
Prediction models of punching shear capacity for reinforced concrete slabs with or without unbalanced moment based on GB 50010—2002, ACI 318-08 and EN 1992-1-1:2004 were compared and analyzed. Then, the factors influencing punching shear capacity were researched. Finally, simplified calculation formulas of equivalent design shear coefficients under unbalanced moment were derived. Results show that prediction models of punching shear capacity based on Chinese code are close to those of American code, but different from those of Eurocode. The effects of concrete strength, effective depth of slabs, side ratio of column and punching resistance reinforcements on punching shear capacity without unbalanced moment are significant. In addition to these factors, unbalanced moment has influence on punching shear capacity with unbalanced moment. Furthermore, the derived formulas of equivalent design shear coefficients for interior column based on three codes are close to each other, and unbalanced moment coefficients based on three codes are close to each other.

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Last Update: 2010-12-20