Experimental Investigation on Structural Performance Enhancement of Brick Masonry Member by Internal Reinforcement

Author:

Jin Kiwoong1ORCID,Choi Ho2ORCID,Quan Chunri3

Affiliation:

1. Department of Architecture, School of Science and Technology, Meiji University, Kanagawa, Kawasaki 2148517, Japan

2. Department of Architecture, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, Fukuroi 4378555, Japan

3. Department of Architecture, Graduate School and Faculty of Engineering, Osaka Institute of Technology, Osaka 5358585, Japan

Abstract

This study focused on perforated bricks, and the structural performance enhancement of brick members by internal reinforcement was experimentally investigated. As a new reinforcing material, screw iron (SI) rods were selected for the internal reinforcement, and they were inserted into the perforated brick. To investigate the most-effective reinforcing method as well as to understand the fundamental structural behaviors, four specimens with different variables were fabricated, and three-point bending tests were carried out. From the experiments, it was found that the maximum strength of the specimen increased by more than two times with internal reinforcement. The internal reinforcement, fixed by nuts at both ends of the specimen to enhance integrity, increased the maximum strength by nine times. Moreover, the deformation capacities of the specimens were also greatly enhanced. The case where the internal SI rods were fixed by nuts without mortar also showed a similar structural performance to the case with mortar. The estimation methods of the maximum strength of the specimens were also discussed, and they showed reasonable agreement with the test results. It was proved that the proposed material and methods enabled effective utilization of the internal reinforcement, and they could contribute to the improvement of structural performances in masonry construction.

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference54 articles.

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3. Lateral stiffness of infilled frames;Smith;J. Struct. Div.,1962

4. Behaviour of the square infilled frames;Smith;J. Struct. Div.,1966

5. A method of analysis for infill frames;Smith;Proc. Inst. Civ. Eng.,1969

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