structural style

1、檁條：在輕型鋼結(jié)構(gòu)中，大多數(shù)都采用有檁體系，故檁條是重要構(gòu)件。主要有以下幾種：實(shí)腹式的薄壁型鋼檁條，角鋼和綴板拼組成的空腹式檁條，桁架式檁條。

1. Purlin: in light steel structures, most of them adopt purlin system, so purlin is an important component. There are mainly the following types: solid web thin-walled steel purlin, open web purlin composed of angle steel and batten plate, truss purlin.

2、桁架：桁架是屋蓋結(jié)構(gòu)中主要承重構(gòu)件，桁架的形式有三角形、梯形、梭形、三鉸撈等，可采用角鋼薄壁型鋼、圓管、方管等來制作。

2. Truss: truss is the main load-bearing component in the roof structure. The forms of truss include triangle, trapezoid, shuttle, three hinged fishing, etc. it can be made of angle steel, thin-wall section steel, round pipe, square pipe, etc.

3、鋼架：鋼架有單層和多層，鋼架桿件有實(shí)腹式和格構(gòu)式的，多層鋼架能有效地利用建筑空間，降低房屋的高度，造型簡潔美觀，構(gòu)件規(guī)格整齊，工地安裝方便，施工速度快，是當(dāng)前輕型結(jié)構(gòu)主要結(jié)構(gòu)形式，多采用H型鋼制造。

3. Steel frame: the steel frame has single layer and multi-layer, and the steel frame members have solid web type and lattice type. The multi-layer steel frame can effectively use the building space, reduce the height of the house, have simple and beautiful shape, neat component specifications, convenient site installation and fast construction speed. It is the main structural form of the current light structure, which is mostly made of H-section steel.

4、網(wǎng)架：網(wǎng)架有空間作用，與梁板、桁架的平面結(jié)構(gòu)比較具有整體性好、剛度大的特點(diǎn)，能有效地承受地震等動(dòng)力荷載。

4. Space truss: space truss has spatial effect. Compared with the plane structure of beam plate and truss, it has the characteristics of good integrity and high stiffness, and can effectively bear dynamic loads such as earthquake.

結(jié)構(gòu)特點(diǎn)

Structural features

1、輕型鋼結(jié)構(gòu)經(jīng)濟(jì)指標(biāo)好。輕型鋼屋蓋結(jié)構(gòu)的用鋼量少，一般輕型屋蓋的用鋼量為8%—16%，接近在相同條件下鋼筋砼的用鋼量，這樣，減輕結(jié)構(gòu)自重70%—80%，而且還節(jié)約大量模板，水泥和其它建筑材料，總造價(jià)較低。

1. The economic index of light steel structure is good. The steel consumption of light steel roof structure is small. Generally, the steel consumption of light steel roof is 8% - 16%, which is close to the steel consumption of reinforced concrete under the same conditions. In this way, the dead weight of the structure is reduced by 70% - 80%, and a large number of formwork, cement and other building materials are saved, with a low total cost.

2、結(jié)構(gòu)自重輕。鋼結(jié)構(gòu)的結(jié)構(gòu)自重只有鋼筋砼結(jié)構(gòu)自重的20%—30%，降低了基礎(chǔ)的荷重，綜合造價(jià)低，由于結(jié)構(gòu)自重輕為改革笨重的結(jié)構(gòu)體系創(chuàng)造了條件。

2. The self weight of the structure is light. The structural weight of steel structure is only 20% - 30% of that of reinforced concrete structure, which reduces the load of foundation and low comprehensive cost. Due to the light structural weight, it creates conditions for the reform of heavy structural system.

3、材質(zhì)均勻，結(jié)構(gòu)桿件應(yīng)力計(jì)算準(zhǔn)確，因此結(jié)構(gòu)的安全度可靠，由于鋼材是延性材料，抗震性能好。

3. The material is uniform and the stress calculation of structural members is accurate, so the safety of the structure is reliable. Because the steel is a ductile material, it has good seismic performance.

4、鋼結(jié)構(gòu)桿件大部分都是在工廠加工制造，有完善的檢測手段，加工質(zhì)量有保證。

4. Most steel structural members are processed and manufactured in factories, with perfect detection means and guaranteed processing quality.

5、施工速度快，運(yùn)輸安裝方便，大大減少了現(xiàn)場工作量，施工速度快。

5. Fast construction speed, convenient transportation and installation, greatly reducing the on-site workload and fast construction speed.

6、輕型鋼結(jié)構(gòu)采用薄壁型鋼，截面形狀合理，且多樣化，和普通型鋼比較，截面的回轉(zhuǎn)半徑增大50%—60%，慣性矩和抵抗矩增大0.5—3倍，能較合理的利用材料的強(qiáng)度，與普通鋼結(jié)構(gòu)比可節(jié)省鋼材30%。

6. The light steel structure adopts thin-walled section steel with reasonable and diversified section shape. Compared with ordinary section steel, the radius of gyration of the section is increased by 50% - 60%, and the moment of inertia and resistance are increased by 0.5-3 times. It can make more rational use of the strength of materials and save 30% of steel compared with ordinary steel structure.

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