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輕型鋼結(jié)構(gòu)龍骨布置形式怎樣優(yōu)化?

來源:http://www.eastagcn.com.cn 日期:2021-04-22 發(fā)布人: 瀏覽次數(shù):43
隨著綠色建筑理念的推廣,輕型裝配式建筑在我國(guó)得到了大力推廣,社會(huì)和市場(chǎng)需求逐年增加,其中以輕型鋼結(jié)構(gòu)的應(yīng)用為廣泛。輕型鋼結(jié)構(gòu)在施工應(yīng)用過程中如何實(shí)現(xiàn)結(jié)構(gòu)優(yōu)化?
With the promotion of green building concept, light prefabricated building has been vigorously promoted in our country, and the social and market demand has increased year by year, among which the light steel structure is widely used. How to optimize the structure of light steel structure in the construction process?
輕型鋼結(jié)構(gòu)建筑在龍骨結(jié)構(gòu)的布置形式方面具備較為充分的優(yōu)化空間,在結(jié)構(gòu)節(jié)材方面以結(jié)構(gòu)產(chǎn)生的應(yīng)力小、材料用量少作為優(yōu)化目標(biāo),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(jié)構(gòu)體系。
Light steel structure building has sufficient space for optimization in the layout form of keel structure. In the aspect of structural material saving, it takes small stress and less material consumption as the optimization objective. Under the same horizontal or vertical load, it optimizes the layout of keel, and replaces the conventional vertical layout of keel with the new truss layout, forming a new truss Frame type keel structure system.
以桿長(zhǎng)與應(yīng)力的乘積作為結(jié)構(gòu)效率進(jìn)行判別,對(duì)比不同龍骨布置方案的結(jié)構(gòu)效率,得出結(jié)構(gòu)受力性能和節(jié)材效果更好的新型龍骨結(jié)構(gòu)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(jié)構(gòu)體系的建筑效率,達(dá)到減少建筑材料用量,、可持續(xù)發(fā)展的目的。
Taking the product of rod length and stress as the structural efficiency, the structural efficiency of different keel layout schemes is compared, and a new keel structure layout scheme with better structural mechanical performance and material saving effect is obtained. In the process of green building promotion, the building energy saving efficiency of the new truss keel structure system with this scheme is fully utilized, so as to reduce the consumption of building materials and save energy To achieve the goal of environmental protection and sustainable development.
1.有限元分析
1. Finite element analysis
采用ABAQUS有限元軟件進(jìn)行分析,以墻體尺寸2.4m×3.0m和4.8m×3.0m為例,在單獨(dú)施加水平單位集中荷載、單獨(dú)施加豎向單位均布荷載、同時(shí)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(duì)采取不同龍骨布置方案的結(jié)構(gòu)形式進(jìn)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(yīng)力分布。
ABAQUS finite element software is used for analysis. Taking the wall size of 2.4m × 3.0m and 4.8m × 3.0m as examples, under three different conditions of applying horizontal unit concentrated load, vertical unit uniform load, horizontal unit concentrated load and vertical unit uniform load at the same time, the finite element analysis is carried out for the structural forms with different keel layout schemes. The results show that under three different conditions, the vertical unit concentrated load and vertical unit uniform load are applied respectively The stress distribution of truss with different keel arrangement schemes under the same load condition.
2.結(jié)構(gòu)效率計(jì)算
2. Structural efficiency calculation
在對(duì)模型進(jìn)行大量參數(shù)化分析得出數(shù)據(jù)后進(jìn)行相應(yīng)的數(shù)據(jù)處理。引入“結(jié)構(gòu)效率”的概念,在達(dá)到相同結(jié)構(gòu)目的條件下,盡可能減少結(jié)構(gòu)構(gòu)件數(shù)量,從而減少建筑材料用量,達(dá)到的綠色建筑要求。通過結(jié)構(gòu)應(yīng)力小、材料用量少為優(yōu)化目標(biāo),對(duì)不同荷載條件、墻體高寬比下輕型鋼結(jié)構(gòu)龍骨結(jié)構(gòu)體系的龍骨布置方案進(jìn)行計(jì)算分析,并對(duì)結(jié)構(gòu)節(jié)材效果進(jìn)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. Under the condition of achieving the same structural purpose, the number of structural components is reduced as much as possible, so as to reduce the consumption of building materials and meet the requirements of green building of energy conservation and environmental protection. Through the optimization objective of small 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 effect of structural material saving is quantified.
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