水工钢筋混凝土叠合梁刚度计算方法

结合文献（１）的试验结果，比照文献（３）中普通混凝土梁短期刚度的推导方法，考虑水工钢筋混凝土叠合梁的受力特点，提出了水工钢筋混凝土叠合梁短期刚度理论计算公式，并参考文献（２），对理论公式作了相应简化，验算表明，这些公式与试验结果符合较好。本文还推导了可用于挠度验算的水工钢筋混凝土叠合梁长期刚度计算公式。

Calculation of Rigidity of Hydraulic Reinforced Concrete Composite Members

Based on the test results from literature [1], taking into account of the derivation of short-term stiffness of ordinary reinforced concrete members from literature [3], and the features of the forces acting on them, is suggested in this paper the theoretical-calculating method of short-term rigidity of hydraulic rein forced concrete composite members. Moreover, the theoretical formula, is simplified by using data from literature [2]. The results obtained from these formulae tally well with the existing experimental data. The long-term rigidity of composite members is also proposed in this paper.