A double-inclined bridge expansion device transfers the vehicle load to the beam body through the combination of the inclined plane on both sides of the bottom of the double-inclined cover plate and the inclined plane at the top corner of the beam end. When the beam body expands, the above inclined plane cooperates with each other and slides. The double-inclined cover plate produces vertical displacement. During the displacement process, the top surface of the bridge expansion device is basically level with the bridge surface, and waterproof is achieved through the water stop or the expansion plate. The expansion panel is made of rubber strip and pearl cotton strip which are consolidated along the bridge. The width of adjacent pearl cotton sliver along bridge is less than two-thirds of that of rubber sliver along bridge. When the expansion panel is used for the expansion device of double-inclined bridge, the bottom sides of the expansion panel are sealed and fixed with the top surface of the two side beams of the expansion joint respectively, and the middle part of the expansion panel is sealed and fixed with the cover along the length direction of the double-inclined cover plate. The utility model is a bridge expansion device with simple structure, low cost, shallow burial, no burial, good waterproof performance, easy expansion, easy installation, easy maintenance and comfortable driving.
【技术实现步骤摘要】
双斜面桥梁伸缩装置
本专利技术涉及一种桥梁伸缩装置,尤其适用于伸缩量在80mm~400mm范围的伸缩缝。
技术介绍
对于伸缩量在80mm~400mm的伸缩缝,基本有三种形式可选,模数式、梳齿式和橡胶式桥梁伸缩装置。模数式预留槽要求较深,而且还要预留位移控制箱位置,不符合浅埋化的设计趋势,且本身结构复杂。梳齿式的翘起和断齿问题频发。同时模数式和梳齿式由于设计不合理导致锚固系统频遭破坏,且制造成本居高不下。橡胶式桥梁伸缩装置伸缩摩阻力大,安装困难,防水性能差,锚固件易损,且同样用材多加工困难,已被淘汰。与本专利技术相似的BSL型橡胶伸缩装置除存在上述缺陷外,还有一个问题。当伸缩量较大时,伴随着托底钢板(盖板)加厚,位移量加大,其托底钢板与橡胶板之间会反复挤压,破坏橡胶板。市场上需要结构简单、造价低廉,浅埋免埋,防水性能好,易伸缩,易安装,易维护,行车舒适的桥梁伸缩装置。
技术实现思路
为克服成本高,易漏水,易损坏,平整度差的问题,本专利技术提供了一种结构简单,易安装,易维护,防水性好,路面平整度高的桥梁伸缩装置。特别适用于伸缩量在80mm~400mm的伸缩缝。本专利技术解决其技术问题所采用的技术方案是:一种双斜面桥梁伸缩装置,通过双斜面盖板底部两侧的斜面与梁端顶角斜面配合,把车辆荷载传递给梁体,梁体伸缩时上述斜面配合相互滑动,双斜面盖板产生竖向位移,位移过程中桥梁伸缩装置顶面与桥面基本平齐,通过止水带或伸缩面板防水。伸缩缝相邻两梁的顶面与端面相接处(原预留槽位置)均为斜面,称为梁端顶角斜面。伸缩缝盖板底部有两个与梁端顶角斜面配合的斜面,命名为双斜面盖板。双斜面盖板 ...
【技术保护点】
1.一种双斜面桥梁伸缩装置,包括伸缩缝盖板,其特征是:通过双斜面盖板底部两侧的斜面与梁端顶角斜面配合,把车辆荷载传递给梁体,梁体伸缩时上述斜面配合相互滑动,双斜面盖板产生竖向位移,位移过程中桥梁伸缩装置顶面与桥面基本平齐,通过止水带或伸缩面板防水。
【技术特征摘要】
1.一种双斜面桥梁伸缩装置,包括伸缩缝盖板,其特征是:通过双斜面盖板底部两侧的斜面与梁端顶角斜面配合,把车辆荷载传递给梁体,梁体伸缩时上述斜面配合相互滑动,双斜面盖板产生竖向位移,位移过程中桥梁伸缩装置顶面与桥面基本平齐,通过止水带或伸缩面板防水。2.根据权利要求1所述的双斜面桥梁伸缩装置,其特征是:双斜面盖板底部两斜面的几何交线位于伸缩缝内双斜面盖板下方。3.根据权利要求1所述的双斜面桥梁伸缩装置,其特征是:双斜面盖板底部...
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