受火灾荷载作用的废玻璃粉加固混凝土梁的热力学耦合分析

IF 1 Q4 ENGINEERING, CIVIL
Dj. Boulifa, K. Ghouilem, S. Merakeb
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引用次数: 0

摘要

废玻璃粉(WGP)可作为水泥替代添加剂用于制造混凝土,从而解决环境污染问题。本文利用 ANSYS 软件对钢筋混凝土梁的热机械行为进行了数值建模,该梁添加了 20% 的玻璃粉作为水泥粉的替代品,并建立了混凝土与钢接触的模型。为此,使用有限元法(FEM)对基于玻璃粉的钢筋混凝土梁进行三维建模,并在 2 小时内对其进行热加载,以模拟梁元素的热-热-机械响应。ANSYS 提供的三维元素(SOLID65)具有与混凝土材料类似的脆性材料非线性模型。该元素的特点是对受拉区的开裂采用了模糊裂缝类比,对受压区的混凝土压碎采用了塑性算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coupled Thermo Mechanical of Wasteglass Powder Reinforced Concrete Beam Subjected to Fire Loads
Waste Glass Powder (WGP) could be used as a cement replacement additive to manufacture concrete and solving the problem of environmental pollution. This article presents a numerical modeling of the thermo-mechanical behavior of a reinforced concrete beam based on an addition of 20% of the powder glass as a substitute for cement powder with modeling of concrete-steel contact using ANSYS software. To do this, a reinforced concrete beam based on glass powder is modeling in three dimensions by the finite element method (FEM) and it is subject to thermal loading during 2 hours in order to simulate the thermo thermo-mechanical response of the beam element. ANSYS provides a three-dimensional element (SOLID65) with the nonlinear model of brittle materials similar to the concrete materials. The element features a smeared crack analogy for cracking in tension zones and a plasticity algorithm to take into account the concrete crushing in compression zones.
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来源期刊
自引率
9.10%
发文量
18
审稿时长
12 weeks
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