双向张拉索-混凝土结构静力分析

Static Analysis of Two-way Tensioning of Cable-concrete Beam

结合张弦梁的结构特点,对双向张拉索-混凝土结构进行静力分析。对双向张拉索-混凝土结构与普通混凝土井字梁在极限荷载与重力荷载分别作用下的位移,应力与裂缝情况,进行对比与分析。结果表明:双向张拉索-混凝土的跨中挠度、承载力都有提高;跨中裂缝减少;受拉钢筋最大应力值减小等。

Combining with the structure characteristics of Beam String, we made static analysis on the two-way tensioning of cable-concrete beams. It was compared and analyzed that stress and crack of two-way tensioning of cableconcrete beam and ordinary concrete cross beam under the action of the limit load and gravity load. The results show that ： both of the midspan deflection and bearing capacity of concrete were improved, midspan fracture was reduced, and the maximum stress value of tensile steel was reduced.