Select the slab type according to the requirements of the building facade: the architectural drawing of the actual project can only blame that generally only the scope of metal roof and wall and the laying method of the wall panel (horizontal or vertical
laying) are given, and the slab type is rarely specified. Therefore, it is necessary to select the appropriate slab type according to the facade requirements of the building. For example: the wall panel needs to be placed vertically, you can choose
yx15-225-900 and yx25-210-840; for the project with the facade effect of flat building, it is recommended to use yx25-200-1000, so that the facade of the building is more beautiful and the construction is more convenient. If horizontal laying is required,
wave type yx18-76-836 and yx18-63.5-825 can be used, and hidden type yx38-310 or yx58-310 and yx50-373 can also be used
2) Select the board type according to the thickness of insulation cotton: the same building should be located in different locations, uses different, and insulation requirements are different. After the thickness of the insulating cotton is determined, the board type shall be selected according to the thickness of the insulating cotton. When the thickness of wall insulation cotton is 100 mm or more, the wall panel with relatively high height assistance shall be selected, for example, yx28-820 and yx25-210-840 shall be compared to the former, and it is better to reverse rolling. When the thickness of wall insulation cotton is greater than 50 mm, it is not suitable to choose the small corrugated plate with high height, otherwise the wall surface will easily spread unevenness and affect the beauty of the building. When the thickness of roof insulation cotton is greater than 100mm, yx75-760 can be selected. When the thickness of insulation cotton is greater than 150 mm, double-layer roof shall be selected as far as possible. If yx75-760 is selected as the roof panel (note that this is a type of board linked by sliding support without open nails), 50mm thick insulation cotton shall be added even if there is no insulation requirement, because no insulation cotton will cause the impact of roof panel and purlin to produce sound, plus insulation cotton, insulation cotton will produce resistance to support the roof panel, yx75-760 link will not produce fatigue damage.
3) Select roof panel according to the building width and roof slope: when the building half slope width is large, the roof panel will produce great stress due to thermal expansion and contraction. When the half slope width is more than 50m, yx25-210-840 should not be selected as the roof panel. Because this type of plate is connected with the roof purlin by open nails, the expansion capacity is weak. When the width of roof half slope exceeds 75m, yx75-380-760 plate shall be selected, and sliding support shall be used to link with purlin to avoid temperature difference stress damage. When the roof slope is less than 2%, high wave plate is recommended to avoid poor drainage of roof.
4) Selecion of slab type when the wall panel is laid horizontally: when the wall panel is laid horizontally, the slab type shall be selected according to the height of the building, and the module of slab width shall be satisfied as far as possible. For example: the height of the bank wall is 1.2m, and the height of the eaves is 8.4m. If the yx25021000 sandwich board is selected, the top board will be cut off by 0.8m (8.4-1.2 = 7.2m, 7 boards are needed = 0.2m), which not only paves but also makes the facade effect not good. If the effective width of 800mm plate is selected, and 9 plates within the height range are just paved to the top of the wall, the module requirements can be satisfied, which is not only beautiful but also saves the plate.
5) Selection of arc slab: many buildings have modeling requirements and need to use arc slab, such as stadium roof, arch workshop roof, etc. Each type of board has the minimum arc radius, so the appropriate board type should be selected according to the arc radius of the roof.