(second test object).This study concluded that the test beam was made from a cross section of 600 mm x 150 mm x 150 mm.and mild steel(profile C73.35.10 mm)has twice the maximum flexural strength compared to 600 mm x 150 mm x 150 mm cross section beam and reinforcing iron(6 mm ...
It is proved that the formula is reliable in practice by an amount of test results. 展开 关键词: external prestressed simple beam ultimate flexural strength external tendon ultimate stress ultimate stress increment 被引量: 19 年份: 2003
beam with HRB500 reinforcement bars accords with the plane section assumption;the measured deflection in relative error is about 6% which is larger than the calculated deflection.According to the tests and some experimental data of high-strength reinforcement bars beams,a modified formula which was ...
and proposed a simplified formula on the basis of the short term deformation of high strength reinforced concrete beam [4~5]; HuangWei proposed a design formula of its resisting shear bearing capacity under concentrated load [6]; GeWenjie studied the flexural performance of HRBF RC beams [7]....
The purpose of this study is to investigate the flexural crack development of high-strength reinforced concrete (HSRC) beams and suggest the design equations of the flexural crack control for HSRC beams. This study conducts two full-size simply-supported beam specimens and seven full-size cantilever...
Based on equilibrium and deflection compatibility condition of concrete beam section reinforced with FRP bars,the balanced reinforcement ratio was provided.The properties of three modes of failure which were compression,tension and balanced failure of such beam were analyzed.Reinforcement ratio affecting on...
strength material,this paper is based on the assumption that plane section before bending remains plane after bending,Hongnestad model and linear elastic model are separately used for concrete and longitudinal reinforcement, the flexural capacity formula of concrete beams reinforced with FRP bars(steel ...
beam, respectively; tw is the web thickness of H-beam; fr, fpy, and fa are the design yield strength values of the tensile reinforcement, prestressed tendons, and H-beam, respectively; fc is the design compressive strength value of the concrete; Ar is the area of ordinary reinforcement of...
The ultimate moment prediction factorkuwas proposed and a formula that can accurately predict the ultimate moment of high-strength RC beams was established. 展开 关键词: High strength steel bar Reinforced concrete beam Maximum crack width Numerical simulation Ultimate moment ...
The high strength of FRP material is used to improve the bearing capacity and stiffness of the beam to achieve the effect of reinforcement. At present, both domestic and international experts and scholars have studied the interface interaction between steel beams and CFRP sheets15,16,17,18,19,...