The Effect of ECC Materials on Seismic Performance of Beam—Column Subassemblies with Slabs

Author:

Lu Tingting1ORCID,Guan Kai1ORCID,Pan Jiaojiao1ORCID,Liang Xingwen2

Affiliation:

1. Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, China

2. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

Abstract

The main objective of this investigation was to study the influence of an Engineered Cementitious Composite (ECC) on the seismic performances of beam–column–slab subassemblies. Tests and simulations were conducted on several models. The bearing capacity of the ECC model was 15% higher than that of the RC member, the deformability increased by 19%, and the energy dissipation capability increased by 34%. The use of an ECC in the slab could reduce the contribution of the reinforced bars in the slab to the flexural strength of the beam. At a drift of 2%, the range of the yielding bars in the slab of the RC models was 5h to 6h. However, the yield range of reinforcement in the slab of the ECC models was nearly 3h. As a result, the ECC subassemblies were prone to reach a “strong column and weak beam” yield mechanism.

Funder

Natural Science Foundation of Shaanxi Province

Youth Innovation Team of Shaanxi Provincial Department of Education

Special Fund for High–level Talents of Xijing University

Publisher

MDPI AG

Subject

Building and Construction,Civil and Structural Engineering,Architecture

Reference21 articles.

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4. (2011). Code for Design of Concrete Structures (Standard No. GB 50010-2010).

5. (2014). Building Code Requirements for Structural Concrete and Commentary (Standard No. ACI 318-2014 and ACI318R-14).

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