MATERIAL AND GEOMETRICAL PARAMETERS AFFECTING PUNCHING OF REINFORCED CONCRETE FLAT SLABS WITH ORTHOGONAL REINFORCEMENT

被引：0

作者：

Faria, Duarte ^{[1
]}

Biscaia, Hugo ^{[1
]}

Lucio, Valter ^{[1
]}

Ramos, Antonio P. ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Civil Engn, P-2829516 Caparica, Portugal

来源：

FIB SYMPOSIUM PRAGUE 2011: CONCRETE ENGINEERING FOR EXCELLENCE AND EFFICIENCY, VOLS 1 AND 2 | 2011年

关键词：

Punching; orthogonal reinforcement; 3D nonlinear finite element analysis; parametric analysis;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The influence of various parameters on punching behaviour is still in discussion and contradictory conclusions were drawn by several authors. In order to contribute with new information, a parametric analysis regarding geometrical and material parameters affecting punching behaviour of flat slabs with orthogonal reinforcement and square columns was run in a previously verified 3D nonlinear finite element analysis. It was found that compressive strength, fracture energy and reinforcement ratio are the most important parameters, contrary to tensile strength and modulus of elasticity, regarding punching load. It was shown that the concept of structural brittleness is appropriate to be used in punching load provisions by codes, turning possible its use in a broad range of concrete types.

引用

页码：571 / 574

页数：4