مقالات انگلیسی

Square RC columns confined with non-laminated CFRP straps

 

ABSTRACT

The enhancement of strength and ductility due to external confinement of reinforced concrete columns having a square or rectangular cross section is usually limited because a significant portion of the cross section remains unconfined. In this paper an innovative method is presented to confine square reinforced concrete columns using non-laminated CFRP straps. The CFRP straps can be either unstressed at the beginning or pre-stressed. Tests were carried out on three medium scale columns (2.0 m high with a cross section of 0.4 m x 0.4 m). The first column was the unconfined reference column, the second column was confined with prestressed non-laminated CFRP straps and the third column was confined with non pre-stressed non-laminated CFRP straps. The test results show no or only a small increase in strength but a significant increase in the deformation capacity of the confined columns with respect to the unconfined column.

 

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الیاف‌ومقاطعFRP

مخازنGRP

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دفتر مرکزی: تهران، ميدان دکتر فاطمی (جهاد)، ابتدای خیابان شهید گمنام، جنب تالار وزارت کشور، ساختمان یاس، پلاک 26، طبقه سوم، واحد 18
تلفن: 88978345 و 88978346
فاکس: 88992245-021
info @ omransanatava . com
www.osa-frp.com
نماينده فروش: شرکت مقاوم تدبیر قشم
منطقه آزاد قشم، درگهان، مجتمع تجاری دریا، طبقه اول، واحد C41-2174
تلفن و فاکس: 5226880-0763
www.mtqeshm.ir

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