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輕型鋼結(jié)構(gòu)廠房的組成和形式有哪些?
來源:http:// 日期:2021-10-20 發(fā)布人: 瀏覽次數(shù):14次
輕型鋼結(jié)構(gòu)是在普通鋼結(jié)構(gòu)的基礎(chǔ)上發(fā)展起來的一種新型結(jié)構(gòu)形式,它包括所有輕型屋面下采用的鋼結(jié)構(gòu)。
Light steel structure is a new type of structure developed on the basis of ordinary steel structure. It includes all steel structures under light roof.
與普通鋼結(jié)構(gòu)相比,有較好的經(jīng)濟指標。輕型鋼結(jié)構(gòu)不僅自重輕、鋼材用量省、施工速度快,而且它本身具有較強的抗震能力,并能提高整個房屋的綜合抗震性能。是目前工業(yè)廠房應(yīng)用較廣泛的一種結(jié)構(gòu)。
Compared with ordinary steel structure, it has better economic index. Light steel structure not only has light weight, low steel consumption and fast construction speed, but also has strong seismic capacity and can improve the comprehensive seismic performance of the whole house. It is a widely used structure in industrial plants.
輕型鋼結(jié)構(gòu)由基礎(chǔ)梁、柱、檁條、層面和墻體組成
Light steel structure consists of foundation beam, column, purlin, layer and wall
單層輕型房屋一般采用門式剛架
Single storey light houses generally use portal frames
剛架的形式及特點
Form and characteristics of rigid frame
1、采用輕型屋面,不僅可減小梁柱截面尺寸,基礎(chǔ)也相應(yīng)減小。
1. The use of light roof can not only reduce the section size of beam and column, but also reduce the foundation accordingly.
2、在多跨建筑中可做成一個屋脊的大雙坡屋面,為長坡面排水創(chuàng)造了條件。設(shè)中間柱可減小橫梁的跨度,從而降低造價。中間柱采用鋼管制作的上下鉸接搖擺柱,占空間小。
2. In multi span buildings, a large double slope roof with one ridge can be made, which creates conditions for long slope drainage. Setting the middle column can reduce the span of the beam, so as to reduce the cost. The middle column adopts the upper and lower hinged swing column made of steel pipe, which occupies a small space.
3、剛架的側(cè)向剛度有檁條的支撐保證,省去縱向剛性構(gòu)件,并減小翼緣寬度。
3. The lateral stiffness of the rigid frame is guaranteed by the support of purlins, the longitudinal rigid members are omitted, and the flange width is reduced.
4、剛架可采用變截面,截面與彎矩成正比;變截面時根據(jù)需要可改變腹板的高度和厚度及翼緣的寬度,做到材盡其用。
4. The rigid frame can adopt variable section, and the section is proportional to the bending moment; When changing the section, the height and thickness of the web and the width of the flange can be changed as needed to make the best use of the material.
5、剛架的腹板可按有效寬度設(shè)計,即允許部分腹板失穩(wěn),并可利用其屈曲后強度。
5. The web of the rigid frame can be designed according to the effective width, that is, partial web instability is allowed, and its post buckling strength can be used.
6、豎向荷載通常是設(shè)計的控制荷載,但當風荷載較大或房屋較高時,風荷載的作用不應(yīng)忽視。在輕屋面門式剛架中,地震作用一般不起控制作用。
6. Vertical load is usually the design control load, but when the wind load is large or the house is high, the role of wind load should not be ignored. In the light roof portal frame, the seismic action generally does not play a control role.
7、支撐可做得較輕便。將其直接或用水平節(jié)點板連接在腹板上,可采用張緊的圓鋼。
7. The support can be made lighter. It can be connected to the web directly or with horizontal gusset plate, and tensioned round steel can be used.
8、結(jié)構(gòu)構(gòu)件可全部在工廠制作,工業(yè)化程度高。構(gòu)件單元可根據(jù)運輸條件劃分,單元之間在現(xiàn)場用螺栓相連,安裝方便快速,土建施工量小。
8. All structural members can be made in the factory with a high degree of industrialization. The component units can be divided according to the transportation conditions. The units are connected by bolts on site, which is convenient and fast for installation and small for civil construction.
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