西南交通大学学报（英文版）2005，Vol.13Issue(1)：70-77,8.
Punching Shear Behavior of RC Slab-Column Connections with Nonrectangular Columns
Punching Shear Behavior of RC Slab-Column Connections with Nonrectangular Columns
Liu Wenting 1Huang Chengkui 1Zhang Ruihe2
作者信息
- 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
- 2. Lanzhou Junda Municipal Engingeering Consulting Company, Ltd., Lanzhou 730030, China
- 折叠
摘要
Abstract
This paper present an experimental study on the RC slab-column connections with nonrectangular columns, namely cross-shaped column, T-shaped column and L-shaped column. The punching shear deformation and strength characteristics of slab-column connections with nonrectangular columns under punching shear load are investigated. Nine specimens with the three kinds of nonrectangular columns and two reference specimens with square columns are tested. The tested ultimate loads, deformations, and failure modes of specimens are presented and discussed. Test results reveal that the punching shear strength and ductility of the connections with nonrectangular columns are higher than those of the corresponding connections with square columns, and also prove that the application of nonrectangular columns to flat-plate structure was feasible. Based on the test results, one method of calculating punching shear strength of connections with nonrectangular columns is proposed, which conforms with the current design practice of China. The test results on the punching shear strength are compared with the predictions of the formulas proposed by codes of several different countrie; and the predictions given by ACI code and China code are found to be conservative as the reinforcement ratio is increased.关键词
Nonrectangular columns/Reinforced concrete/Slab-column connections/Punching shear/DuctilityKey words
Nonrectangular columns/Reinforced concrete/Slab-column connections/Punching shear/Ductility分类
数理科学引用本文复制引用
Liu Wenting ,Huang Chengkui,Zhang Ruihe..Punching Shear Behavior of RC Slab-Column Connections with Nonrectangular Columns[J].西南交通大学学报（英文版）,2005,13(1):70-77,8.
