RESEARCH ON CRACKING SHEAR FORCE OF TRANSVERSELY PRESTRESSED CONCRETE BEAMS
This paper presents a method that uses inner transverse prestressing bars to enhance the shear capacity and cracking shear force of concrete beams, which can be used in new transformer beams to decrease the sectional dimensions and improve their durability. Four transversely prestressed concrete beams and one ordinary reinforced concrete beam were tested. Based on the test results and theoretical analysis, a formula to calculate the cracking shear force of transversely prestressed concrete beams was suggested, and the following conclusions can be drawn: (a) the transverse prestressing bars with proper prestressing force can increase the failure loads, shear capacities and cracking shear forces of reinforced concrete beams significantly; and (b) the proposed formula can predict the cracking shear force of the tested beams well on the whole.
transversely prestressed concrete beam shear capacity failure load cracking shear force
Can Liu Bo Wu
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, P.R. China
国际会议
广州
英文
375-379
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）