随着楼承板的迅速发展，其应用越来越广泛。常用的楼承板主要有65mm高的立边和25mm低的立边。近年来，越来越多的建筑采用楼承板。为什么在使用时经常使用65毫米高的垂直边缘？

With the rapid development of floor bearing plate, its application is more and more extensive. The commonly used floor bearing plate mainly has 65mm high vertical edge and 25mm low vertical edge. In recent years, more and more buildings use floor bearing plates. Why is a 65mm high vertical edge often used?

主要还是因为工程设计的需要，高立边相比矮立边具有更好的负载能力和抗风性能，能更好的满足屋面设计需要和规范标准。大家应该知道，高立边与矮立边较大的不同在于支撑结构。

Mainly because of the needs of engineering design, the high vertical edge has better load capacity and wind resistance than the low vertical edge, which can better meet the needs of roof design and specifications. You should know that the big difference between high vertical edge and low vertical edge lies in the supporting structure.

65mm高立边楼承板采用直立锁边咬合系统，先让铝合金T支架与次檩条固定，再将楼承板板与T支架的梅花头用锁边机咬合。另外在T支架下加装隔热垫，用螺丝予以固定，可以防止由于铝构件与钢材之间产生电化学反应，有效控制冷桥效用。

The 65mm high vertical side floor support plate adopts the vertical locking and biting system. First fix the aluminum alloy t support and the secondary purlin, and then bite the floor support plate and the plum blossom head of the t support with the locking machine. In addition, the thermal insulation pad is installed under the t-support and fixed with screws, which can prevent the electrochemical reaction between aluminum components and steel and effectively control the cold bridge effect.

高立边这种采用专门的锁边机械将屋面板与T支架连接成为一个防水及抗风的整体，在正负风压作用下能很好的承载对T支架的反复撕拉力和施工负载，还能有效避免因受力不均造成的板块挤压、拉伸变形，使得系统结构非常安全稳固。

The high vertical edge adopts a special edge locking machine to connect the roof panel with the t support into a waterproof and wind resistant whole. Under the action of positive and negative wind pressure, it can well carry the repeated tearing force and construction load on the t support, and can effectively avoid the plate extrusion and tensile deformation caused by uneven stress, making the system structure very safe and stable.

25mm矮立边楼承板是采用立边咬合结构，咬合的方式与高立边不同。基层与檩条之间用自攻螺丝固定。基层与面板之间用不锈钢或楼承板材料做的扣件固定，屋面板块之间是以特有的咬合折叠方式连接，上下两块板搭载重合后，以270°单咬合或360°双咬合，形成一个密封的整体，有一定的防水防渗性能。

25mm low vertical edge floor bearing plate adopts vertical edge bite structure, and the bite mode is different from that of high vertical edge. The base course and purlin shall be fixed with self tapping screws. The base course and the panel are fixed with fasteners made of stainless steel or floor bearing plate materials. The roof plates are connected in a unique bite folding way. After the upper and lower plates are loaded and overlapped, they form a sealed whole with a certain waterproof and impermeable performance by 270 ° single bite or 360 ° double bite.

正是由于两者支撑结构的不同，两者的抗负载强度也就不同。所以金属屋面工程中，特别是大跨度建筑屋面，多采用强度更高、更稳固的高立边屋面结构。

Because of the different supporting structures, the load resistance of the two is also different. Therefore, in the metal roof engineering, especially the long-span building roof, the high vertical edge roof structure with higher strength and more stability is mostly used.