structural style

1、檩条：在轻型钢结构中，大多数都采用有檩体系，故檩条是重要构件。主要有以下几种：实腹式的薄壁型钢檩条，角钢和缀板拼组成的空腹式檩条，桁架式檩条。

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：桁架是屋盖结构中主要承重构件，桁架的形式有三角形、梯形、梭形、三铰捞等，可采用角钢薄壁型钢、圆管、方管等来制作。

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、钢架：钢架有单层和多层，钢架杆件有实腹式和格构式的，多层钢架能有效地利用建筑空间，降低房屋的高度，造型简洁美观，构件规格整齐，工地安装方便，施工速度快，是当前轻型结构主要结构形式，多采用H型钢制造。

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、网架：网架有空间作用，与梁板、桁架的平面结构比较具有整体性好、刚度大的特点，能有效地承受地震等动力荷载。

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.

结构特点

Structural features

1、轻型钢结构经济指标好。轻型钢屋盖结构的用钢量少，一般轻型屋盖的用钢量为8%—16%，接近在相同条件下钢筋砼的用钢量，这样，减轻结构自重70%—80%，而且还节约大量模板，水泥和其它建筑材料，总造价较低。

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、结构自重轻。钢结构的结构自重只有钢筋砼结构自重的20%—30%，降低了基础的荷重，综合造价低，由于结构自重轻为改革笨重的结构体系创造了条件。

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、材质均匀，结构杆件应力计算准确，因此结构的安全度可靠，由于钢材是延性材料，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、钢结构杆件大部分都是在工厂加工制造，有完善的检测手段，加工质量有保证。

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，运输安装方便，大大减少了现场工作量，施工速度快。

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

6、轻型钢结构采用薄壁型钢，截面形状合理，且多样化，和普通型钢比较，截面的回转半径增大50%—60%，惯性矩和抵抗矩增大0.5—3倍，能较合理的利用材料的强度，与普通钢结构比可节省钢材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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