【摘要】 桥面铺装层与行车道板结合良好时,可参与结构受力。为研究铺装层对结构受力性能影响,分别对有、无铺装层的两片空心板进行正截面承载能力试验,研究铺装层对空心板跨中混凝土应变分布、挠度、裂缝开展规律以及破坏形态的影响。试验结果表明桥面铺装层空心板共同受力性能良好,铺装层能显著提高结构开裂荷载和极限承载能力,增大结构刚度和改变结构破坏形态。并参考相关文献对构件刚度、开裂荷载和极限承载力进行计算,与试验结果进行比较,对考虑铺装层作用时空心板计算提出建议。更多还原

【Abstract】 In order to study the effect of bridge deck overlays on the flxure performance of structure,two void concrete plates with and without deck overlays were tested.The concrete strain,mid-span deformation,cracks and failure mode were acquired by the experiment.The carrying capacity,the crack load and the rigid are advanced by the pavement,even the failure mode is changed as the affect of the pavement.Referring to the correlate study,the rigid,crack load and carrying capacity were calculated.By compared with the test data,the advice of the analysis of the void concrete plates with deck overlays is proposed.更多还原