梁格法在分析简支铰接空心板桥中的应用

梁格法是桥梁结构空间分析的一种有效方法，但传统的梁格法无法合理模拟简支铰接板的铰接缝作用，这使得其在分析简支铰接板方面受到一定的限制。根据梁格法原理，通过使虚拟横梁在同一铰接缝处的梁端竖向约束相互耦合来模拟纵向铰接缝，提出改进的梁格模型，建立简支铰接空心板桥空间分析模型并编制程序进行计算，最后通过实桥静载试验验证模型的正确性。该方法可为既有简支铰接板桥的检测、加固的计算分析提供参考。

Application of Grillage Method in Simply-supported Hinged Joint Celluar Slab Bridge Analysis

Although grillage method is an effective method of analyzing bridge deck,it has not been widely used in analyzing simply-supported hinged joint slab for the restriction of that the traditional method can't be used resonably in simulating the hinged joint.Based on basic principles of grillage method,an improved grillage modal of making the vertical constraint of cross beam ends couple at the same hinged joint to simulate longitudinal hinged joint is brought forth.establish the space analytical modal of the simply-supported hinged joint celluar slab bridge and compute the modal using the self-generator program composition.Finally,proving the correction of the modal through the static test.This method may provide the reference for the examination and strengthening of the simply-supported hinged joint slab bridge in the future.