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轻型钢结构是如何实现结构优化的?

来源:http://www.jnghbxg.com 日期:2021-08-06 发布人:yangxiang 浏览次数:
随着绿色建筑理念的推广,轻型装配式建筑在我国得到了大力推广,社会和市场需求逐年增 大,其中以轻型钢结构的应用为广泛。轻型钢结构在施工应用过程中如何实现结构优化?一起来看下面的分析吧。
With the promotion of the concept of green building, light prefabricated building has been vigorously promoted in China, and the social and market demand is increasing year by year, especially the application of light steel structure. How to optimize the structure of light steel structure in the process of construction application? Let's take a look at the following analysis.
轻型钢结构建筑在龙骨结构的布置形式方面具备较为充分的优化空间,在结构节材方面以结构产生的应力小、材料用量少作为优化目标,在受到相同水平荷载或竖向荷载的作用下,优化龙骨布置方式,以新型桁架式布置的龙骨替代常规竖向布置的龙骨,形成新型桁架式龙骨结构体系,以杆长与应力的乘积作为结构效率进行判别。
Light steel structure buildings have sufficient optimization space in the layout form of keel structure. In terms of structural material saving, the optimization goal is to reduce the stress generated by the structure and the amount of materials. Under the action of the same horizontal load or vertical load, the keel layout is optimized, and the keel with new truss layout is used to replace the keel with conventional vertical layout, A new truss keel structure system is formed, and the product of rod length and stress is used to judge the structural efficiency.
济南轻型钢结构
对比不同龙骨布置方案的结构效率,得出结构受力性能和节材效果更好的新型龙骨结构布置方案,在绿色建筑推广的过程中,充分发挥采用该方案的新型桁架式龙骨结构体系的建筑节能效率,达到减少建筑材料用量,节能环保、可持续发展的目的。
Comparing the structural efficiency of different keel layout schemes, a new keel structure layout scheme with better structural stress performance and material saving effect is obtained. In the process of green building promotion, give full play to the building energy-saving efficiency of the new truss keel structure system adopting this scheme, so as to achieve the purpose of reducing the consumption of building materials, energy conservation, environmental protection and sustainable development.
1.有限元分析
1. Finite element analysis
采用ABAQUS有限元软件进行分析,以墙体尺寸2.4m×3.0m和4.8m×3.0m为例,在单独施加水平单位集中荷载、单独施加竖向单位均布荷载、同时施加水平单位集中荷载和竖向单位均布荷载3种不同条件下,对采取不同龙骨布置方案的结构形式进行有限元分析,分别得出在3种不同荷载条件下采用不同龙骨布置方案的桁架应力分布。
ABAQUS finite element software is used for analysis, and the wall size is 2.4m × 3.0m and 4.8m × Taking 3.0m as an example, under three different conditions of applying horizontal unit concentrated load alone, vertical unit uniformly distributed load alone, horizontal unit concentrated load and vertical unit uniformly distributed load at the same time, the structural forms with different keel layout schemes are analyzed by finite element method, and the truss stress distribution with different keel layout schemes under three different load conditions is obtained.
2.结构效率计算
2. Structural efficiency calculation
在对模型进行大量参数化分析得出数据后进行相应的数据处理。引入“结构效率”的概念,在达到相同结构目的条件下,尽可能减少结构构件数量,从而减少建筑材料用量,达到节能环保的绿色建筑要求。通过结构应力小、材料用量少为优化目标,对不同荷载条件、墙体高宽比下轻型钢结构龙骨结构体系的龙骨布置方案进行计算分析,并对结构节材效果进行量化。
After a large number of parametric analysis of the model, the corresponding data processing is carried out. The concept of "structural efficiency" is introduced to reduce the number of structural components as much as possible under the condition of achieving the same structural purpose, so as to reduce the consumption of building materials and meet the green building requirements of energy conservation and environmental protection. Through the optimization goal of low structural stress and less material consumption, the keel layout scheme of light steel structure keel structure system under different load conditions and wall height width ratio is calculated and analyzed, and the material saving effect of the structure is quantified.