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輕型鋼結構是如何實現(xiàn)結構優(yōu)化的?

來源:http://m.eastagcn.com.cn 日期:2021-08-06 發(fā)布人: 瀏覽次數(shù):15
隨著綠色建筑理念的推廣,輕型裝配式建筑在我國得到了大力推廣,社會和市場需求逐年增 大,其中以輕型鋼結構的應用為廣泛。輕型鋼結構在施工應用過程中如何實現(xiàn)結構優(yōu)化?一起來看下面的分析吧。
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.
輕型鋼結構建筑在龍骨結構的布置形式方面具備較為充分的優(yōu)化空間,在結構節(jié)材方面以結構產(chǎn)生的應力小、材料用量少作為優(yōu)化目標,在受到相同水平荷載或豎向荷載的作用下,優(yōu)化龍骨布置方式,以新型桁架式布置的龍骨替代常規(guī)豎向布置的龍骨,形成新型桁架式龍骨結構體系,以桿長與應力的乘積作為結構效率進行判別。
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.
濟南輕型鋼結構
對比不同龍骨布置方案的結構效率,得出結構受力性能和節(jié)材效果更好的新型龍骨結構布置方案,在綠色建筑推廣的過程中,充分發(fā)揮采用該方案的新型桁架式龍骨結構體系的建筑節(jié)能效率,達到減少建筑材料用量,節(jié)能環(huán)保、可持續(xù)發(fā)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有限元軟件進行分析,以墻體尺寸2.4m×3.0m和4.8m×3.0m為例,在單獨施加水平單位集中荷載、單獨施加豎向單位均布荷載、同時施加水平單位集中荷載和豎向單位均布荷載3種不同條件下,對采取不同龍骨布置方案的結構形式進行有限元分析,分別得出在3種不同荷載條件下采用不同龍骨布置方案的桁架應力分布。
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.結構效率計算
2. Structural efficiency calculation
在對模型進行大量參數(shù)化分析得出數(shù)據(jù)后進行相應的數(shù)據(jù)處理。引入“結構效率”的概念,在達到相同結構目的條件下,盡可能減少結構構件數(shù)量,從而減少建筑材料用量,達到節(jié)能環(huán)保的綠色建筑要求。通過結構應力小、材料用量少為優(yōu)化目標,對不同荷載條件、墻體高寬比下輕型鋼結構龍骨結構體系的龍骨布置方案進行計算分析,并對結構節(jié)材效果進行量化。
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.
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