Experimental and numerical investigation on the role of interface for crack-width control of hybrid SHCC concrete beams

被引：19

作者：

Mustafa, Shozab ^{[1
]}

Singh, Shantanu ^{[1
]}

Hordijk, Dick ^{[2
]}

Schlangen, Erik ^{[3
]}

Lukovic, Mladena ^{[1
]}

机构：

[1] Delft Univ Technol, Concrete Struct, Delft, Netherlands

[2] Adviesbureau Ir JG Hageman BV, Rijswijk, Netherlands

[3] Delft Univ Technol, Mat & Environm, Delft, Netherlands

来源：

ENGINEERING STRUCTURES | 2022年 / 251卷

关键词：

Hybrid Reinforced SHCC Concrete Beams; Interface; SHCC; Cracking; Lattice Modelling; HARDENING CEMENTITIOUS COMPOSITES; IMAGE CORRELATION METHOD; BEHAVIOR; MODEL; PERFORMANCE;

D O I：

10.1016/j.engstruct.2021.113378

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Hybrid application of conventional concrete and Strain Hardening Cementitious Composite (SHCC) is recently shown to be promising for crack width control. In this paper, a combined experimental and numerical study is performed to validate the concept and to study the effect of interface treatment on crack width control. The interface is varied between smooth, profiled, partially debonded and completely debonded surfaces. The beams are tested under a four-point bending configuration. The crack development is monitored using digital image correlation throughout the loading, and maximum crack width of 0.3 mm at the surface is taken as the limiting criterion for analyses. The hybrid and control beams are simulated using the lattice model. Both experimentally and numerically, it is observed that stronger interfaces enable the composite action in the hybrid beams and provide better crack width control compared to the artificially weakened interfaces.

引用

页数：15

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