桥梁用高强锚杆组件的设计与试验

Design and Experiment of High Strength Bolt Subassembly for Bridge

摘要:

对桥梁用高强锚杆组件进行设计研究，提供了一种高强锚杆组件的结构设计思路及锚固方案，完成了高强锚杆、球面螺母、球面垫片、止退螺母的结构设计与强度校核；结合工程应用需求，完成了设计载荷为1 500 kN、1 200 kN、800 kN高强锚杆组件的设计计算，形成了M85、M76、M64等高强锚杆尺寸系列。经分级张拉锚固工艺进行静载试验验证，所设计的高强锚杆组件满足设计及使用要求。

Abstract:

The high-strength bolt assembly of bridge is designed and studied. The structural design idea and anchoring scheme of high-strength bolt subassembly are provided. The structural design and strength check of high-strength anchor bolt, spherical nut, spherical gasket and retaining nut are completed. Combined with the engineering application requirements, the design and calculation of high-strength bolt subassemblies with design loads of 1 500 kN, 1 200 kN and 800 kN are completed. And the size series of M85, M76, and M64 high-strength bolts are formed. Through the static load test of graded tension anchorage technology, the designed high-strength bolt subassemblies meet the design and application requirements.