摘要
In order to investigate shear carrying capacity of H-steel concrete beam with small shear span ratio,shear test on 5 H-steel concrete composite beams with small span ratio (from 0.7 to 1.1) are reported,including test design,test scheme,test method,failure characteristics and test results. Influences of shear span ratio,web of H steel and concrete on shear carrying capacity of this kind of beam are investigated. The main components comprising shear bearing capacity are analyzed. The results show that with the shear span ratio increasing,the contribution of web of H steel and concrete on shear carrying capacity decrease. Based on test data,the calculation formula of shear carrying capacity for this beam is established by curve fitting.
In order to investigate shear carrying capacity of H-steel concrete beam with small shear span ratio, shear test on 5 H-steel concrete composite beams with small span ratio （ from 0. 7 to 1.1 ） are reported, including test design, test scheme, test method, failure characteristics and test results. Influenees of shear span ratio, web of H steel and concrete on shear carrying capacity of this kind of beam are investigated. The main components comprising shear bearing capacity are analyzed. The results show that with the shear span ratio increasing, the contribution of web of H steel and concrete on shear carrying capacity decrease. Based on test data, the calculation formula of shear carrying capacity for this beam is estadlished by curve fitting.
基金
Sponsored by the National Key Technologies R&D Program of China during the 11th Five-Year Plan Period (Grant No.2006BAJ03A10)
"New Century Excellent Talents in University"Scheme (Grant No.290)
the National Natural Science Foundation of China(Grant No.50178026)
the Natural Science Foundation of Heilongjiang Province-General Project (Grant No.E200806)
the Foundation of Harbin Program (Grant No.2005AFXXJ017)
