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本文用传递矩阵方法对茅岭江桥预应力混凝土箱形连续梁在几种荷载条件和支承情况下的刚性扭转和畸变作了计算分析,给出了变截面箱梁无量纲化传递矩阵的修正形式,提出了中间支座处的传递在固定铰支情况下的一种处理方法。本文系根据本专题第一期报告编写,关于悬臂板对刚性扭转的影响,以及考虑剪切变形和刚性扭转约束影响的畸变计算将另文讨论。
In this paper, the transfer matrix method is used to calculate and analyze the rigid torsion and distortion of prestressed concrete box girder continuous girder of Maoliangjiang Bridge under several load conditions and supporting conditions, and the correction of non-dimensional transmission matrix of box girder with variable cross section is given Form, put forward the middle of the support at the delivery of a fixed hinge in the case of a treatment. This article is based on the first issue of this paper, and the effects of cantilever plates on the torsional stiffness, as well as the calculation of the distortion that takes into account the effects of shear deformation and rigid torsion constraints, will be discussed separately.