随着建筑钢结构技术的迅速发展和机械化程度的日益提高，轻型金属板材及其配套的门式刚架等系列轻型钢结构已得到了较为广泛的应用。那么钢结构中檩条、支撑等构件的制作安装内容您了解吗？

With the rapid development of building steel structure technology and the increasing degree of mechanization, light-weight metal plate and its supporting portal frame and other light-weight steel structures have been widely used. Do you know the manufacturing and installation contents of purlins, supports and other components in the steel structure?

1、为了安装方便，随意增大、加长檩条或檩托板的螺栓孔径。檩条不仅仅是支撑屋面板或悬挂墙面板的构件，而且也是刚架梁柱隅撑设置的支撑体，设置一定数量的隅撑可减少刚架平面外的计算长度，有效的保证了刚架的平面外整体稳定性。若檩条或檩托板孔径过大过长，隅撑就失去了应有的作用。

1. For the convenience of installation, the bolt hole diameter of purlin or purlin support plate shall be increased or lengthened at will. Purlin is not only a member supporting the roof panel or hanging wall panel, but also a support for the setting of the corner brace of the beam and column of the rigid frame. Setting a certain number of corner braces can reduce the calculated length out of the plane of the rigid frame and effectively ensure the overall stability out of the plane of the rigid frame. If the aperture of purlin or purlin supporting plate is too large and too long, the corner brace will lose its due function.

2、隅撑角钢与钢梁的腹板直接连接，当刚架受侧向力时，使腹板在该处局部受到侧向水平力作用，容易导致钢梁局部侧向失稳。

2. The angle steel of the corner brace is directly connected with the web of the steel beam. When the rigid frame is subjected to lateral force, the web is subjected to lateral horizontal force locally, which is easy to cause local lateral instability of the steel beam.

3、有的工程所用檩条仅用电镀，造成工程尚未完工，檩条早已生锈。檩条宜采用热镀锌带钢压制而成的檩条，且保证一定的镀锌量。

3. The purlins used in some projects are only electroplated, resulting in that the project has not been completed and the purlins have long been rusted. Purlins should be made of hot-dip galvanized steel strip, and a certain amount of galvanizing should be guaranteed.

4、因墙面开设门洞，擅自将柱间垂直支撑一端或两端移位。同一区隔的柱间支撑、屋面水平支撑与刚架形成纵向稳定体系，若随意移动其位置将会破坏其稳定体系。

4. One or both ends of the vertical support between columns are displaced without authorization due to the door opening on the wall. The column bracing, roof horizontal bracing and rigid frame in the same partition form a longitudinal stability system. If they are moved at will, their stability system will be destroyed.

5、有些单位为了节省钢材和人工，将檩条和墙梁用钢板支托的侧向加劲肋取消，这将影响檩条的抗扭刚度和墙梁受力的可靠性。故施工单位不得任意取消设计图纸的一些做法。

5. In order to save steel and labor, some units cancel the lateral stiffeners of purlins and wall beams supported by steel plates, which will affect the torsional stiffness of purlins and the reliability of wall beams. Therefore, the construction unit shall not arbitrarily cancel some practices of design drawings.

6、有的单位擅自增加屋面荷载，原设计未考虑吊顶或设备管道等悬挂荷载，而施工中却任意增加吊顶等悬挂荷载，从而导致钢梁挠度过大或坍塌。任何单位均不得擅自增加设计范围以外的荷载。

6. Some units increase the roof load without authorization. The original design does not consider the suspended loads such as ceiling or equipment pipes, but arbitrarily increase the suspended loads such as ceiling during construction, resulting in excessive deflection or collapse of steel beams. No unit shall increase the load beyond the design scope without authorization.

7、屋面板未按要求设置，将固定式改为浮动式，使檩条侧向失稳。往往设计檩条时，会考虑屋面压型钢板与冷弯型钢檩条牢固连接，能可靠的阻止檩条侧向失稳并起到整体蒙皮作用。

7. The roof panel was not set as required, and the fixed type was changed to the floating type, making the purlin unstable laterally. When designing purlins, it is often considered that the roof profiled steel plate and cold-formed steel purlins are firmly connected, which can reliably prevent the lateral instability of purlins and play the role of overall skin.

8、济南轻型钢结构厂家认为刚性系杆、风拉杆的连接板设置位置高低不一，使得水平支撑体系不在同一平面上，从而影响刚架的整体稳定性。刚性系杆与风拉杆构成水平支撑体系，其设置高度在同一坡度方向应保持一致。

8. Jinan light steel structure manufacturer believes that the setting positions of the connecting plates of rigid tie rods and wind pull rods are different, which makes the horizontal support system not on the same plane, thus affecting the overall stability of the rigid frame. The rigid tie rod and wind pull rod form a horizontal support system, and its setting height should be consistent in the same slope direction.

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