Experimental Study of RC Column Strength Restoration after Core Drilling Using Different Strengthening Techniques-Reference-Cited by-同舟云学术

Experimental Study of RC Column Strength Restoration after Core Drilling Using Different Strengthening Techniques

Published:2022-05-30 Issue: Volume:921 Page:271-282
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Elafandy Tamer H.K.¹,Salem Sherif A.¹,Abd el-Hafez L.M.²,Eid Mohamed A.²

Affiliation:

1. Housing and Building National Research Center

2. El-Minia University

Abstract

This paper presents an experimental study to investigate the effect of core drilling on the Reinforced Concrete (RC) column capacity. It also discusses how to restore the drilled RC column capacity. The experimental work consists of seven half-scale short rectangular concrete columns with cross section in width and depth equal to 160 and 300 mm, respectively. All specimens have the same column total and clear height which is equal to 1900 and 1300 mm, respectively. On loading at 40% of column load capacity, the core has been taken to stimulate what happens in nature where core is drilled in buildings. The discussion presents the different strengthening techniques for the core drilling zone to restore the un-voided column capacity, strengthen techniques such as using Carbon Fiber Reinforcement Polymer (CFRP) and anchored steel plates. The study showed good agreement of the results. Finally, recommendations are given for the reduction in the RC column load carrying capacity under the effect of core hole.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.921.271.pdf

Reference10 articles.

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4. ZHU Lei et al. Experimental Studies of Reinforced Concrete Column Capacity Affected by Core Drilling, Advanced Materials Research Vols. 133-134, 2010, pp.1195-1200.

5. Masi et al., Effect of Core Drilling and Subsequent Restoration on RC Column Strength, 15th World Conference on Earthquake Engineering, LISBOA, (2012).