CARRYING CAPACITY OF THE STEEL AND HIGH STRENGTH CONCRETE VERTICALLY TENSIONED PRESTRESSED COMPOSITE BEAMS

摘要

Applying the technique of vertically tensioned pre-stressed on composite beams can reduce the tension force needed and losing of pre-stress greatly, improve the efficiency of drawing. According to the property of different structure and actual carrying capacity, the calculation formulas have been established which show the section stress in different periods and the ultimate anti-bending capacity of pre-stressed composite beams. The working performance of vertically tensioned pre-stressed steel composite beams with high-strength concrete is further defined on different working stage. The text offers the theory for the design of vertically tensioned pre-stressed composite beams.