摘要
分析了钢箱梁桥梁连接处的应力分布,发现传统设计中存在的应力集中问题,并提出优化设计方案。优化后的设计改进了焊接接头和螺栓连接方式,选用高强度材料及新型连接技术,降低了连接处的应力集中,提升了承载力和抗疲劳性能,并且表面处理的优化有效增强了连接处的耐腐蚀性和耐磨性。试验和数值分析验证了优化设计的效果,优化设计不仅在承载能力和疲劳寿命方面取得了良好效果,还提高了桥梁的安全性和耐久性。
This paper analyzes the stress distribution of the bridge junction of the steel box girder,finds the stress concentration problem in the traditional design,and proposes an optimal design scheme.The optimized design improves the welded joint and bolt connection method,selects high-strength materials and new connection technology,reduces the stress concentration of the joint,improves the bearing capacity and fatigue resistance,and the optimization of the surface treatment effectively enhances the corrosion resistance and wear resistance of the joint.Experiments and numerical analysis verify the effect of the optimized design,which performs well in terms of bearing capacity and fatigue life,and also improves the safety and durability of the bridge.
作者
曹阳
CAO Yang(China First Highway Engineering Co.Ltd.,Beijing 100024,China)
出处
《工程建设与设计》
2025年第2期71-73,共3页
Construction & Design for Engineering
关键词
钢箱梁桥梁
连接处
应力分析
优化设计
数值模拟
steel box girder bridge
joint
stress analysis
optimized design
numerical simulation
