concrete reinforcement
4.Abstract: Based on the systematic analysis of the shear behavior for R.C.beams,the tests of 11 simple supported beams under the top concentrated loads and the uniform loads are supplemented.The prime variable is shear span ratio,span depth ratio,horizontal web reinforcement ratio and vertical web reinforcement ratio.According to the test results,the working behavior,the prime shear failure modes, the effect of concrete and web reinforcement (horizontal web reinforcement and vertical web reinforcement) and other aspects of R.C.beams are analysed.The uniform calculation method for shear capacity of deep beams,short beams and shallow beams for practical is presented.
6.The result shows that the stone chip concrete and ordinal concrete are well-matched in reinforcement rust performance. GECOR6 type reinforcement rust instrument to be used indoor is also worth trusting.
7.Concrete constitutive relationship and steel reinforcement constitutive relationship on the suggested of Kent and Park are used, and every member bar is divided to five elements.
8.Study on Basic Problems in Quality Evaluation of Concrete Structure with Aging Disease and in Bonding Reinforcement
9.In the condition of earlier loading age presented in the paper, it considers the re distribution of the stress between reinforcement and concrete from concrete constriction creep,it coordinates the conditions by static balance and deformation, the concrete stress from the actually measured reinforcement stress has a better identical with the calculation value in theory, and the general volume of corresponding constriction creep is more close to the calculation value in specifications.
