Effects of Simulated Corrosion and Delamination on Response of Two-Way Slabs

被引：13

作者：

Aoude, Hassan ^{[1
]}

Cook, William D. ^{[2
]}

Mitchell, Denis ^{[2
]}

机构：

[1] Univ Ottawa, Dept Civil Engn, Ottawa, ON K1N 6N5, Canada

[2] McGill Univ, Dept Civil Engn & Appl Mech, Montreal, PQ H3A 0C3, Canada

来源：

JOURNAL OF STRUCTURAL ENGINEERING | 2014年 / 140卷 / 01期

关键词：

Two-way slabs; Flat slabs; Parking structures; Deterioration; Delamination; Corrosion; Punching shear; Failure; Concrete; Structural safety and reliability;

D O I：

10.1061/(ASCE)ST.1943-541X.0000775

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the results from an experimental program that studied the effects of simulated delamination and corrosion on the structural response of six two-way slab-column specimens with details typical of older construction. The results in terms of load-deflection response, punching shear resistance, and cracking are compared. The test results demonstrate that a reduction in reinforcing bar cross-sectional area (simulated corrosion) leads to a significant drop in punching shear resistance and results in increased crack widths. In addition, the study demonstrates that a critical degree of delamination can lead to a reduction in punching shear capacity, greater crack widths, and loss of stiffness. (C) 2013 American Society of Civil Engineers.

引用

页数：9