英语翻译Abstract:A new equation to predict the contribution of c

英语翻译
Abstract:A new equation to predict the contribution of concrete to the shear strength of fiber-reinforced polymer (FRP) reinforced concrete
beams without shear reinforcement is proposed.The new equation considers the elastic modulus ratio of the FRP bars to the steel reinforcement,
the shear span to depth ratio,and the flexural reinforcement ratio,and was developed using the results of 60 concrete beam tests.The
proposed equation more accurately predicted the results of various experiments available in the literature than the equations of an American
Concrete Institute standard,and yielded similar degrees to the equations of a Canadian Standards Association standard,despite making
somewhat higher predictions.The applicability of the proposed equation to FRP reinforced lightweight concrete beams was investigated
using 24 all-lightweight concrete beam tests.The concrete shear strengths of the FRP reinforced all-lightweight concrete beams were equivalent
to 75% of the strengths predicted by the proposed equation for normal concrete.Furthermore,with a reduction factor of 0.85,the
proposed equation also showed good results for the concrete shear strength of glass FRP (GFRP) reinforced sand-lightweight concrete panels
presented in a recently published paper.DOI:10.1061/(ASCE)CC.1943-5614.0000440.© 2013 American Society of Civil Engineers.
Author keywords:Concrete shear strength; Fiber-reinforced polymer (FRP) bar; Lightweight concrete; Shear strength correction factor.