Behaviour of steel reinforced polymer (SRP) strengthened RC members under blast load

被引：22

作者：

Carriere, M. ^{[1
]}

Heffernan, P. J. ^{[1
]}

Wight, R. G. ^{[1
]}

Braimah, A. ^{[2
]}

机构：

[1] Royal Mil Coll Canada, Dept Civil Engn, Stn Forces, Kingston, ON K7K 7B4, Canada

[2] Nat Resources Canada, Canadian Explos Res Lab, Ottawa, ON K1A 0G1, Canada

来源：

CANADIAN JOURNAL OF CIVIL ENGINEERING | 2009年 / 36卷 / 08期

关键词：

SRP; blast; reinforced concrete; retrofit; strengthening; columns;

D O I：

10.1139/L09-053

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

During the past decade, significant research has been carried out on the strengthening of reinforced concrete (RC) slabs, beams, and columns using externally bonded carbon fibre reinforced polymer (CFRP) sheets. Steel reinforced polymer (SRP) sheets have recently been proposed as an alternative to CFRP to strengthen reinforced concrete beams. This paper reports experimental and numerical results of RC beams and beam-columns transversely wrapped with SRP and tested under blast load. A total of 10 scaled RC members were tested at a variety of blast wave intensities. Detailed observations are reported and validated against numerical models created in AUTODYN for the unstrengthened RC members. The SRP wraps were resilient in the near-field blast range and enhanced the ductility of the concrete likely through enhanced confinement. Member capacity could be increased by the wraps in failure modes dominated by concrete crushing. AUTODYN appears able to reasonably predict the behaviour of the RC members when loaded by blast.

引用

页码：1356 / 1365

页数：10