Horizontal shear transfer across a roughened surface

被引：76

作者：

Gohnert, M ^{[1
]}

机构：

[1] Univ Witwatersrand, Sch Civil & Environm Engn, Dept Civil Engn, ZA-2050 Johannesburg, Johannesburg, South Africa

来源：

CEMENT & CONCRETE COMPOSITES | 2003年 / 25卷 / 03期

关键词：

horizontal shear; shear; composites; precast concrete; design;

D O I：

10.1016/S0958-9465(02)00050-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A total of 90 concrete composite members were tested to determine the horizontal shear strength along the interface of a roughened surface. The "push-off" method of testing was implemented to determine the capacity. It was ascertained that the roughness of the surface had a profound effect on the shear capacity and is a far better indicator of strength than the compressive strength of the concrete. Design curves are provided based on the surface roughness and the compressive strength of the in situ concrete. In addition, six beams were bent in flexure until horizontal shear failure occurred. The results of these tests are compared with specifications of various codes. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：379 / 385

页数：7

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