基于时序信息的桥梁施工工程关键节点承载力建模分析  

Modeling and Analysis of Bearing Capacity of Key Nodes in Bridge Construction Based on Time Sequence Information and Attention Mechanism

作　　者：王聪 WANG Cong(China Railway 18th Bureau Group Fifth Engineering Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中铁十八局集团第五工程有限公司,天津300222

出　　处：《成都大学学报（自然科学版）》2024年第3期322-327,共6页Journal of Chengdu University（Natural Science Edition）

摘　　要：为了准确地预测和分析连续桥梁的关键节点承载力,提出基于时序信息的桥梁施工工程关键节点承载力建模分析方法.分析关键节点之间的受力情况,聚合关键节点承载力信息;应用注意力机制,计算连续桥梁施工工程关键节点极限承载力;利用平面参数化设计方法并结合时序信息,设计连续桥梁施工工程关键节点参数,构建桥梁施工工程关键节点承载力模型.实验结果表明,应用该设计模型得到的连续桥梁关键节点受力误差较小,低至0.04 kPa,具有较高的准确性.In order to accurately predict and analyze the bearing capacity of key nodes in continuous bridges,a modeling analysis of the bearing capacity of key nodes in bridge construction engineering based on timing sequence is proposed.This paper analyzes the stress between the key nodes,aggregates the bearing capacity information of these key nodes,applies the attention mechanism to calculate the ultimate bearing capacity of these key nodes in continuous bridge construction engineering,uses the method of plane parameterization design with the combination of timing sequence to design key node parameters for continuous bridge construction engineering,and constructs a bearing capacity model for key nodes in bridge construction engineering.The experimental results show that the stress error on the key nodes in the continuous bridge obtained by applying the model designed in this article is small,as low as 0.04 kPa,and has high accuracy.

关 键 词：时序信息 注意力机制 连续桥梁施工 工程关键节点 承载力 建模 

分 类 号：U446[建筑科学—桥梁与隧道工程]