Concentrated load distribution in corrugated steel decks: A parametric finite element study
Concentrated load distribution in corrugated steel decks: A parametric finite element study
复制标题
波纹钢甲板的集中载荷分布：参数化有限元研究
DOI：
10.1016/j.engstruct.2019.110158
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发表时间：
2020
影响因子：
5.5
通讯作者：
V. Degtyarev
中科院分区：
文献类型：
--
作者：
V. Degtyarev
本文介绍了一个广泛的参数有限元研究的结果集中荷载分布在波纹钢甲板。使用ANSYS中开发的精细单元模型进行参数化研究。有限元模型的最佳参数，如网格密度，甲板角半径，初始几何缺陷分布和大小，选择的基础上，以满足标准的精度和计算效率的研究。采用优化参数建立的有限元模型与试验结果吻合良好。在数值参数研究中，研究了以下参数对桥面强度和行为以及有效横向分布宽度的影响：桥面类型、钢材厚度、桥面跨度条件、桥面跨度长度、集中荷载沿着桥面跨度的位置以及集中荷载施加到桥面横截面不同单元。建立了有效横向分布宽度的设计方程。所开发的方程预测的有效横向分布宽度与有限元模拟得到的横向分布宽度吻合良好。本文还介绍了一个工作的例子，显示了集中荷载作用下的钢桥面板的设计方程的实施。
This paper presents results of an extensive parametric finite element study on a concentrated load distribution in corrugated steel decks. The parametric study was conducted using fine element models developed in ANSYS. Optimal parameters of the finite element models, such as mesh density, deck corner radius, and initial geometric imperfection distributions and magnitudes, were selected based on a study to meet the criteria of accuracy and computational efficiency. The finite element models with the optimal parameters showed good agreement with available test results. In the numerical parametric study, effects of the following parameters on strength and behavior of deck, as well as on the effective transverse distribution width, were studied: deck type, steel thickness, deck span condition, deck span length, concentrated load locations along deck span, and concentrated load application to different elements of the deck cross-section. Design equations for predicting the effective transverse distribution widths were developed. The effective transverse distribution widths predicted by the developed equations agreed well with the transverse distribution widths obtained from the finite element simulations. The paper also presents a worked example showing implementation of the design equations for design of steel deck under concentrated loads.