【摘要】 对我国在预应力混凝土箱梁结构剪力滞效应方面的主要研究方法进行了评述 ,通过实例比较各方法的计算精度和适用范围 ,并提出了有待于进一步研究解决的若干问题及其研究的努力方向。这对于加速箱梁剪力滞理论的深入研究 ,为大跨、新型桥梁结构的性能评价提供正确的计算模型有一定的参考价值。更多还原

【Abstract】 The primary achievements of the theoretical studies on shear lag effect of prestressed concrete box girders are presented. The existing problems during study and study direction are put forward by comparing different methods. It is useful for the thorough study of shear lag theory of box girders, and provides references so that a theoretical model is available to estimate the actual performance of new type bridge with long or medium span.更多还原