1.序言本文介绍了正交异性钢桥面在桥梁中如加劲桁梁的翼缘一样作用时的一种实用的计算方法的摘要(1)、(2)。计算方法针对两种构造型式,即1) 型式Ⅰ:正交异性钢桥面直接与弦杆联结。2) 型式Ⅱ:在桥面与加劲桁梁之间留有气孔,用桁梁式的剪力连接结构建立它们的共同作用,如图1所示。模型试验与用有限单元法(F.E.M.)分析的结果亦于文中介绍以验证上述理论。 1. INTRODUCTION This paper presents a summary of practical methods for calculating the effect of orthotropic steel decks on bridges as stiffened girders (1) and (2). The calculation method is aimed at two types of construction, namely 1) Type I: the orthotropic steel deck is directly connected with the chord. 2) Type II: There are holes between the bridge deck and the stiffening girder, and their mutual effect is established by the truss beam shear connection structure, as shown in Fig.1. The results of the model test and the analysis by finite element method (F.E.M.) are also presented in the paper to verify the above theory.