摘要
伸缩缝是桥梁结构释放温度荷载，保证桥梁自由变形的重要构件。在矿石、煤炭、建筑材料运输线上桥梁伸缩缝的填塞情况严重，伸缩缝发生填塞的情况时，桥梁在升温情况下的变形就会受到阻碍，从而使桥梁产生非常大的温度应力，伸缩缝填塞严重时甚至会造成桥梁结构的破坏。文章介绍了一种计算在伸缩缝填塞密实情况下桥梁升温产生的支座水平力的计算方法，该计算方法对于桥梁结构破坏原因的分析、桥梁维修方案的制定具有重要的意义。
Abstract
The expansion joint is an important component to release the temperature load of the bridge structure and ensure the free deformation ofthe bridge. In the ore, coal, building materials transport line，the bridge expansion joints fill with the serious situation, When the fill situation occurswith expansion joint, the deformation of the bridge in the case of heating will be hindered, so that the bridge has a very large temperature stress,expansion joints fill with the serious situation will result in the destruction of the bridge structure. In this paper, a calculation method for calculatingthe horizontal force of bearing produced by the temperature rise of bridge under the dense fill of expansion joints is introduced. The calculationmethod is of great significance to the analysis of the reasons for the damage of bridge structure and the formulation of bridge maintenance schemes.
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