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如何設(shè)計好一個高質(zhì)量的伸縮棚?

來源:http:/// 日期:2023-01-30 發(fā)布人:
雖然膜結(jié)構(gòu)膜遮陽棚的應(yīng)用范圍很廣,但并不是每個人都知道膜結(jié)構(gòu)是什么樣的建筑結(jié)構(gòu)。實際上,可靠的薄膜遮陽板是由薄膜單元本身和支撐桿或拉索產(chǎn)生的拉應(yīng)力組成的結(jié)構(gòu)體系。如何設(shè)計好一個高質(zhì)量的濟(jì)南伸縮棚?
Although membrane structure membrane sunshade has a wide range of applications, not everyone knows what kind of building structure membrane structure is. In fact, a reliable membrane sunshade is a structural system composed of the membrane unit itself and the tensile stress generated by the support rod or cable. How to design a high-quality Jinan telescopic shed?
1、應(yīng)力分析
1. Stress analysis
在設(shè)計薄膜遮陽板時,必須做好薄膜結(jié)構(gòu)的應(yīng)力分析。通常采用有限元法計算膜結(jié)構(gòu)在雪荷載、自重等外部荷載作用下的響應(yīng)。計算中應(yīng)考慮幾何非線性,而物理非線性可忽略不計。在靜力分析過程中,如果膜單元中存在壓應(yīng)力,可以忽略膜單元在結(jié)構(gòu)分析中的作用,但剛度矩陣不能奇異。
When designing the membrane sunshade, the stress analysis of the membrane structure must be done well. The finite element method is usually used to calculate the response of membrane structures under external loads such as snow load and dead weight. Geometric nonlinearity should be considered in the calculation, while physical nonlinearity can be ignored. In the process of static analysis, if there is compressive stress in the membrane element, the role of the membrane element in the structural analysis can be ignored, but the stiffness matrix cannot be singular.
2、考慮風(fēng)荷載
2. Consider wind load
由于膜結(jié)構(gòu)在重量、柔度和自振頻率等方面都比其他傳統(tǒng)結(jié)構(gòu)小,因此靜、地震作用不起主導(dǎo)作用,但在風(fēng)荷載作用下,容易使結(jié)構(gòu)產(chǎn)生風(fēng)振現(xiàn)象,導(dǎo)致膜材料的撕裂破壞。因此,在設(shè)計薄膜遮陽板時,應(yīng)根據(jù)當(dāng)?shù)仫L(fēng)況計算風(fēng)荷載。
Because the membrane structure is smaller than other traditional structures in terms of weight, flexibility and natural vibration frequency, static and seismic actions do not play a leading role, but under the wind load, it is easy to cause wind vibration of the structure, leading to the tearing of membrane materials. Therefore, when designing the membrane sunshade, the wind load should be calculated according to the local wind conditions.
濟(jì)南伸縮棚
3、先找形狀
3. Find the shape first
所謂找形,就是根據(jù)膜材料的特性和建筑師的要求,找出合理的空間形式。在薄膜遮陽設(shè)計中,找形設(shè)計是和難點之一。為了使空間形狀更為合理,通常采用力密度法、動力松弛法和非線性有限元法進(jìn)行找形。
The so-called form-finding is to find a reasonable space form according to the characteristics of membrane materials and the requirements of architects. In the film shading design, form-finding design is one of the key and difficult points. In order to make the space shape more reasonable, the force density method, dynamic relaxation method and nonlinear finite element method are usually used to find the shape.
伸縮棚由于其性能可靠,美觀、經(jīng)濟(jì)、實用,所以現(xiàn)在很多地方都會選擇這種結(jié)構(gòu)。但要使伸縮棚經(jīng)久耐用,必須在設(shè)計中做好找形、應(yīng)力分析和風(fēng)荷載計算,并使薄膜表面有一定的曲率,使完成的伸縮棚不僅能使用,而且具有很大的剛度和良好的美觀效果。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://咨詢!
Because of its reliable performance, beautiful, economical and practical, the telescopic shed will be selected in many places now. However, in order to make the telescopic shed durable, it is necessary to do a good job in shape finding, stress analysis and wind load calculation in the design, and make the membrane surface have a certain curvature, so that the completed telescopic shed can not only be used, but also have great stiffness and good aesthetic effect. Come to our website for more relevant content http:// consulting service

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