基于响应面法的曲线钢箱梁组合桥面板优化设计

白杨; 王博; 王一潮; 杜隆基; 王彬先

doi:10.3724/j.gyjzG23041014

基于响应面法的曲线钢箱梁组合桥面板优化设计

doi: 10.3724/j.gyjzG23041014

白杨¹,
王博¹,
王一潮²,
杜隆基²,
王彬先^3,4, ,

1. 中交第二公路工程局有限公司, 西安 710065;
2. 中交公路长大桥建设国家工程研究中心有限公司, 北京 100032;
3. 长安大学公路学院, 西安 710064;
4. 中交第一公路勘察设计研究院有限公司, 西安 710075

基金项目:

陕西省自然科学基础研究计划项目(2021JLM-47)。

国家自然科学基金项目(52078043)

详细信息

作者简介:
白杨,高级工程师,主要从事桥梁结构设计与施工方向的研究,394854972@qq.com。

通讯作者:
王彬先,794592869@qq.com。

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- 文章访问数: 40
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- 被引次数: 0
出版历程
- 收稿日期: 2023-04-10
- 网络出版日期: 2025-10-24

Optimal Design of Curved Steel Box Girder Composite Decks Based on Response Surface Methodology

1. CCCC Second Highway Engineering Group Co., Ltd., Xi'an 710065, China;
2. CCCC Highway Bridges National Engineering Research Centre Co., Ltd., Beijing 100032, China;
3. School of Highway, Chang'an University, Xi'an 710064, China;
4. CCCC First Highway Consultants Co., Ltd., Xi'an 710075, China

摘要

摘要: 为分析带开孔钢板连接件(PBL)剪力连接件在曲线钢箱梁钢混组合桥面板中的适用性及合理构造,基于ABAQUS软件建立了考虑整体效应影响的节段局部有限元分析模型,通过与实桥试验对比验证了有限元模型的可靠性。将新型钢-混组合桥面板与原设计进行了对比分析,采用中心复合设计(CCD)试验设计方法,进行了25个试验点的有限元分析,运用Design-Expert软件建立组合桥面板结构优化响应面优化模型,通过多目标优化得到了3组优化设计方案,综合分析后给出了最终的优化设计结果:钢箱梁顶板厚取18 mm,剪力键开孔钢板厚取12 mm,剪力键横向间距取250 mm,混凝土厚度取120 mm,其钢材用量减少了23.12%、焊缝数量减少了17.50%,组合桥面板相较初始参数组合桥面板成本增大10.41%,但仍小于原结构的成本,桥面板力学指标降幅明显,尤其是混凝土最大拉应力显著减小,表明优化效果良好。
- 曲线钢箱梁 /
- 组合桥面板 /
- PBL剪力键 /
- 响应面法 /
- 优化设计
Abstract: In order to analyze the applicability and reasonable construction details of PBL shear connectors in curved steel box girder steel-concrete composite bridge decks, a local finite element model of the segment considering the influence of global effects was established based on ABAQUS software. The reliability of the finite element model was verified through a comparison with actual bridge loading tests. A comparative analysis was conducted between the new steel-concrete composite bridge deck and the original design. Central Composite Design (CCD) experimental design method was used to conduct finite element analysis at 25 test points. Design Expert software was used to establish an optimized response surface model for the composite bridge deck structure. Three sets of optimized design schemes were obtained through multi-objective optimization. After a comprehensive analysis, the final optimized design results were obtained: the thickness of the steel box girder top plate was set at 18 mm, the thickness of the perforated steel plate for the shear connectors was set at 12 mm, the transverse spacing of the shear connectors was set at 250 mm, and the concrete thickness was set at 120 mm. This resulted in a 23.12% reduction in steel usage and a 17.50% reduction in the number of welds. The cost of the composite bridge deck increased by 10.41% compared to the initial design parameters, yet remained lower than that of the original structure. The mechanical indicators of the bridge deck showed significant improvement, with a particularly notable reduction in the maximum tensile stress of the concrete. These results demonstrated the effectiveness of the optimization.
- curved steel box girder /
- composite bridge deck /
- PBL shear connector /
- response surface methodology /
- optimal design

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