集中荷载作用下玻璃桥面板的承载力试验研究

EXPERIMENTAL STUDY ON THE BEARING CAPACITY OF GLASS BRIDGE DECK UNDER CONCENTRATED LOAD

为探索将玻璃板技术运用到普通车辆路面,进行了集中荷载作用下的玻璃面板承载力试验研究,探讨了集中荷载作用下在边界条件、作用位置、玻璃层数等不同状态下,玻璃板的破坏状态、压力-位移曲线和安全特性。试验表明:在相同条件下,三层夹层玻璃和同种类型的单层玻璃在极限承载力的位置变化,从大至小顺序依次是板中央、板边和板角;集中荷载作用下三层夹层玻璃极限承载力两边简支约为四边简支的71.8%,单层玻璃极限承载力两边简支约为四边简支的51.4%;在板角、板中央位置施加不同倍数的车轮荷载进行加载试验,均满足规范要求,试验结果可为工程实际提供参考。

The pedestrian landscape glass bridge deck is highly acclaimed by world-renowned scenic spots due to its strong impact brought by its transparent light.In order to explore the application of glass panel technology to the mechanical properties of ordinary vehicle road panels,experimental research on the bearing capacity of glass panels under concentrated load was conducted.The failure state,pressure displacement curve,and safety characteristics of glass panels under concentrated load were explored under boundary conditions,action positions,and glass layers.The test results show that under the same conditions,the position of the ultimate bearing capacity of the three layer laminated glass and the single layer glass of the same type changes in the order of plate edge,plate edge and plate angle from large to small;Under concentrated load,the ultimate bearing capacity of three-layer laminated glass simply supported on both sides is about 71.8%of that on four sides,and the ultimate bearing capacity of single-layer glass simply supported on both sides is about 51.4%of that on four sides;Applying different multiples of wheel loads at the corners and center of the plate for loading tests meets the requirements of the specifications,and the test results can provide reference for engineering practice.