煤炭工程 ›› 2025, Vol. 57 ›› Issue (9): 42-48.doi: 10. 11799/ ce202509007

• 设计技术 • 上一篇    下一篇

橡胶集料混凝土筒仓结构非线性数值分析

杨光   

  1. 1. 中煤天津设计工程有限责任公司,天津 300120

    2. 天津大学 建筑工程学院,天津 300350

  • 收稿日期:2025-06-30 修回日期:2025-08-19 出版日期:2025-09-10 发布日期:2025-10-13
  • 通讯作者: 杨光 E-mail:tjuyg2010@tju.edu.cn

Nonlinear Numerical Analysis of Crumb Rubber Concrete Silo Structure

  • Received:2025-06-30 Revised:2025-08-19 Online:2025-09-10 Published:2025-10-13
  • Contact: yangguang yangguangyangguang E-mail:tjuyg2010@tju.edu.cn

摘要:

针对钢筋混凝土筒仓结构在工程中易产生开裂、受冲击损伤的现状,提出采用橡胶集料混凝土替代普通混凝土材料用于筒仓结构的方法。引入钢材双折线本构模型及混凝土损伤塑性模型,比较了不同钢筋建模方法对钢筋混凝土结构非线性数值模拟精度的影响。选取简化钢筋模型嵌入混凝土实体单元的方式,建立了气膜钢筋混凝土筒仓及钢筋混凝土筒仓结构有限元模型,分析了不同橡胶掺量的橡胶集料混凝土对筒仓结构静力性能的影响。

关键词:

储煤筒仓 , 橡胶集料混凝土 , 混凝土损伤塑性 , 简化钢筋模型 , 有限元模拟

Abstract:

A method was proposed using crumb rubber concrete instead of ordinary concrete materials for the construction of reinforced concrete silos, which are prone to cracking and impact damage in engineering. The influence of different reinforcement modeling methods on the accuracy of nonlinear numerical simulation of reinforced concrete structures was compared by introducing a steel double line constitutive model and a concrete damage plasticity model. A simplified rebar model embedded in concrete solid elements was selected to establish finite element models of sprayed concrete on air-form silo and reinforced concrete silo structures. The influence of crumb rubber concrete with different rubber contents on the static performance of silo structures was analyzed.

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