一种不等板厚异种材质等强连接方法
本发明公开了一种不等板厚异种材质等强连接方法,该方法包括:在厚板端部通过机械端铣加工出一体化的阶梯加强衬,阶梯下部衬厚度≥8mm;在薄板端部切割出35°的单V坡口;将薄板与厚板组拼,焊缝间隙和搭接尺寸均为厚板板厚的1/2;最后采用全熔透对接焊缝进行焊接,确保焊缝强度不低于高强度母材。本发明通过阶梯加强衬的设计,取消了传统过渡段,简化了施工,同时形成的锥形焊缝实现了截面的和缓过渡,既保证了焊缝的等强承载,又有效降低了应力集中,特别适用于大型复杂钢结构节点。
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