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1一期荷载作用下受力性能分析1.1一期荷载作用下迭合梁应力计算公式在一期荷载作用下,若变形的平截面假设成立,钢筋与混凝土处于弹性状态,预制梁裂缝高为C,则经推导可得一期荷载下迭合梁应力计算公式其中各量的意义见图1,。EI为钢筋弹模E。与预制梁混凝土弹。模Ecl的比值
1 Analysis of loading behavior under one-stage loading 1.1 Stress calculation formula of laminated beams under one-stage loading Under one-stage loading, if the assumption of flat section of deformation is established, the reinforcement and concrete are in elastic state, and the crack of precast beam is high. For C, the stress calculation formula for the laminated beam under one-stage loading can be derived as shown in Figure 1. EI is a reinforced mode E. Concrete beam with precast beams. Model Ecl ratio