中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2018, Vol. 37 ›› Issue (03): 5-8.DOI: 10.3969/j.issn.1674-0696.2018.03.02

• 桥梁与隧道工程 • 上一篇    下一篇

基于ANSYS的正交异性桥面板焊接动态温度场研究

张丽   

  1. (包头市交通规划设计院,内蒙古 包头 014040)
  • 收稿日期:2016-12-01 修回日期:2017-04-30 出版日期:2018-03-20 发布日期:2018-03-26
  • 作者简介:张丽(1974—),女,内蒙古包头人,高级工程师,主要从事公路桥梁勘察设计方面的研究。E-mail:zhangli_0011@163.com。

Dynamic Temperature Field of Welding of Orthotropic Bridge Deck Based on ANSYS

ZHANG Li   

  1. (Baotou Transportation Planning and Design Institute, Baotou 014040, Inner Mongolia, P. R. China)
  • Received:2016-12-01 Revised:2017-04-30 Online:2018-03-20 Published:2018-03-26

摘要: 基于双重生死单元技术并考虑材料热物理性能的温度依赖性特征对正交异性桥面板多道焊缝的动态温度场演变进行数值模拟,以探讨其焊接温度场的分布规律。研究表明:正交异性桥面板的焊接热循环曲线按“快升、快降、缓冷却”的模式演变,焊接顺序显著影响温度场的动态变化,焊缝附近局部高温区主要分布在焊缝两侧10 mm区间内,且各焊缝不同时刻的温度峰值个数并不一致。通过试验验证了数值模拟的可靠性,数值解与实测温度吻合良好。

关键词: 桥梁工程, 焊接, 温度场, 数值模拟, 正交异性桥面板

Abstract: Considering the characteristic of the temperature dependence of the thermos-physical properties of materials, the numerical simulation of the dynamic temperature field of multi-seam welding of the orthotropic bridge deck panel was carried out on the basis of double life and death element technology, in order to discuss the distribution rule of the welding temperature field. The results show that the welding thermal-cycle curve of orthotropic bridge deck evolves according to the mode of “fast rise, fast drop and slow cooling”. The welding sequence significantly affects the dynamic change of the temperature field. The local high temperature zone near the weld seam is mainly distributed in the range of 10 mm on both sides of the weld seam, and the number of temperature peaks of different weld seams at different time is not the same. The reliability of the numerical simulation is verified by experiments, and the numerical solution is in good agreement with the measured temperature.

Key words: bridge engineering, welding, temperature field, numerical simulation, orthotropic bridge deck

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