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# Research on Calculation Method of Shear Capacity of Reinforced Concrete Beams

Author: LiJiaJia
Tutor: LiPingXian
School: Zhengzhou University
Course: Hydraulic Structure Engineering
Keywords: Reinforced concrete Girder Shear capacity Shear compression failure Generalized shear span ratio Regression Analysis
CLC: TU375.1
Type: Master's thesis
Year: 2010
Quote: 0

### Abstract

 This article Applied Mathematical Statistics principle has 95 right at home and abroad shall be 307 ( of which 152 the root of domestic and foreign countries shall be 155 ) concentrated load reinforced concrete abdominal ribs beam shear pressure destruction test results conducted a statistical analysis , based on the regression analysis of the % guaranteed rate of reinforced concrete STIRRUPS beams shear Capacity Calculation method and existing in our specification method of calculating . The conclusion is that the following main conclusions : 1. 307 ( including 152 domestic and 155 foreign ) under concentrated load the web reinforcement shear compression failure of the test data of the beam , with a 95% guarantee rate established by regression analysis shear Capacity Calculation Method : this method is characterized by not including the parameters of shear span ratio , based on comparison with experimental results , the ratio of the experimental and calculated values ??of the mean 1.491 , standard deviation 0.432 coefficient of variation was 0.290 . 2 . of Beams shear capacity can be calculated according to the collected 231 ( concentrated load of 199 uniformly distributed load of 32 ) the wITHOUT STIRRUPS reinforced concrete beam test data , test values ??and (2) the ratio of the mean for 2.244 , mean square deviation of 1.31 , the coefficient of variation was 0.584 . 3 when considering the shear span ratio when where lambda = M/Vh0 and 1 ≤ lambda ≤ 3 , . When lambda lt ; 1 , lambda = 1, 3 , when the lambda gt ; take lambda = 3 . Collected 199 with concentrated load without web tendons reinforced concrete beam test data , test values ??and formula (3) the ratio of the mean value of 1.714 , the average variance 0.604 , coefficient of variation of 0.352 . 4 . Consider the generalized shear cross than the by shear capacity proposed calculation method : where lambda = M/Vh0 , 1 ≤ lambda ≤ 3 , . When lambda lt ; 1 , lambda = 1, 3 , when the lambda gt ; take lambda = 3 . Contrast with the experimental data according to the experimental values ??and the formula ( 4 ) the ratio of the mean of 1.280 , standard deviation 0.236 0.302 coefficient of variation was .

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Girder