Roof panel selection for light steel structure houses

All the materials of the light steel villa can be fully factory-produced and assembled at the construction site, which not only reduces the construction intensity on site, but also improves the construction efficiency and project quality. During construction, the residential environment can be built first, and then the residence can be built, and the residence can be designed and manufactured according to the needs of the buyers. The interior decoration can also be completed through the whole, at one time. The construction speed is fast, the cycle is short, and the efficiency is high. It is not affected by the season, and the construction is all-weather.

The light steel structure adopts high-strength bolts. When it comes to high-strength bolts, it is friction type and pressure-bearing type. In the beam-column connection of light steel structure, if the load on the floor and roof is large and the shear force at the bolt connection is large, the friction resistance at the connection surface of the friction type and pressure type high-strength bolts is used to bear the shear force at the node. is an effective way.

For the design of roof panels and purlins, purlins are usually arranged at equal intervals, and purlins are equal-span supports to the roof panel. For example, the rigid frame with a span of more than 15m is mostly double-slope. Above 7.5m. According to the arrangement of the purlins, the roof panels are mostly designed as continuous beams with equal spans of 5 spans. As a result, the mid-span bending moment of the end-span of the roof panel is much larger than that of the mid-span. Then the mid-span roof panel cannot fully function.

The line load on the purlin is based on the reaction force of the second support of the roof panel. The reaction force of the second support is the support with the largest reaction force in the 5-span continuous slab, and the purlin is designed with this reaction force. At this time, only the purlin of the second support of the roof panel can fully play its role, and the bearing capacity of the purlin of the mid-span support is much richer and cannot fully play its role. In general, the amount of steel used in the roofing system accounts for a large proportion of the total amount of steel used, so the effect of this treatment is better.

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