樓承板型材厚0.8mm、1.0mm、1.2mm寬688mm~940mm，高5 1 mm ~76mm.工程樓面樓承板與鋼筋混凝土結構共同作用，系復合結構。樓承板鋪設與鋼梁連接，板端頭與鋼梁熔透點焊，中間采用栓釘與鋼梁穿透熔焊；樓承板間用專用夾緊鉗咬合壓孔連接；堵頭用專用鍍鋅堵頭板與樓承板及鋼梁點焊。如果是帶弧形區樓承板異型裁切采用等離子切割機切割，其切口光滑，表面鍍鋅層完整。樓承板焊接采用手工電弧點焊，焊條為E4303，直徑3.2mm，熔透焊接點為16mm.原設計焊點間距305mm，后將焊點增加1倍，以確保操作人員行走時樓承板不變形，混凝土澆筑時樓承板端頭不漏漿。當樓面層結構標高變化不一致時，采取加焊型鋼措施，使水平結構呈臺階過渡，當降低標高時工字梁腹板加焊角鋼；抬升標高時工字梁翼緣加焊槽鋼。當遇到樓面有預留洞口時 尺寸一般是大于500mm×500mm時采用先開洞措施，即在鋼梁上加焊型鋼托梁分隔，增加洞口剛度，網片鋼筋在洞口斷開，并與型鋼焊接；洞口尺寸小于500mm×500mm時采取后開洞措施，即在樓承板上增加堵頭分割板，網片鋼筋貫通，混凝土澆筑成型后可剪斷鋼筋

The thickness of the floor support plate profile is 0.8mm, 1.0mm, 1.2mm, with a width of 688mm~940mm and a height of 51mm~76mm. The engineering floor support plate and reinforced concrete structure work together to form a composite structure. The floor support plate is laid and connected to the steel beam, and the plate end is welded to the steel beam through fusion welding. In the middle, bolts and steel beams are welded through fusion welding; Use specialized clamping pliers to bite and press the holes between the floor slabs for connection; The plug is spot welded with a dedicated galvanized plug plate to the floor support plate and steel beam. If the irregular cutting of the floor support plate with an arc-shaped area is carried out using a plasma cutting machine, the incision is smooth and the surface galvanized layer is intact. The welding of the floor support plate adopts manual arc spot welding with an E4303 welding rod with a diameter of 3.2mm and a penetration welding point of 16mm. The original design welding point spacing was 305mm, and the welding points were later doubled to ensure that the floor support plate does not deform when the operator walks, and there is no leakage of grout at the end of the floor support plate during concrete pouring. When the elevation changes of the floor structure are inconsistent, welding steel measures are taken to make the horizontal structure transition into steps. When the elevation is lowered, angle steel is welded to the web plate of the I-beam; When lifting the elevation, weld channel steel to the flange of the I-beam. When encountering reserved openings on the floor, the size is generally greater than 500mm × When the diameter is 500mm, the first opening measure is adopted, which is to add welded steel joists on the steel beam to separate and increase the stiffness of the opening. The mesh reinforcement is disconnected at the opening and welded to the steel section; Hole size less than 500mm × When the thickness is 500mm, a rear opening measure is adopted, which is to add a plug and dividing plate on the floor support plate, and the mesh steel bars are connected. After the concrete is poured and formed, the steel bars can be cut off

第三代鋼筋桁架

Third generation reinforced steel truss

樓承板是將樓板中的鋼筋在工廠采用進口設備加工成鋼筋桁架，并將鋼筋桁架與鍍鋅鋼板在工廠焊接成一體的組合模板。該模板系統是將混凝土樓板中的鋼筋與施工模板組合為一體，組成一個在施工階段能夠承受濕混凝土自重及施工荷載的承重構件，并且該構件在施工階段可作為鋼梁的側向支撐使用。在使用階段，鋼筋桁架與混凝土共同工作，承受使用荷載。

Floor support plate is a composite template that processes the steel bars in the floor slab into a steel truss using imported equipment in the factory, and welds the steel truss and galvanized steel plate together in the factory. This template system combines the steel bars in the concrete floor slab with the construction template to form a load-bearing component that can withstand the weight of wet concrete and construction loads during the construction phase. This component can also be used as lateral support for steel beams during the construction phase. During the usage phase, the steel truss and concrete work together to withstand the usage load.

桁架樓板受力模式及組合模式合理，具有現澆混泥土整體剛性， 能輕松地完成雙向板施工及使用，而普通的壓型板下皮垂直于肋方向鋼筋無法部。

The stress mode and combination mode of the truss floor slab are reasonable, and it has the overall rigidity of cast-in-place concrete, which can easily complete the construction and use of the two-way slab. However, the lower skin of the ordinary profiled slab perpendicular to the rib direction cannot be reinforced.

在施工中梁間距3米以上，普通的壓型板基本上就要加設臨時支撐；鋼筋桁架模板大無支撐間距可達5米以上。

During construction, if the spacing between beams is more than 3 meters, temporary support should be added to ordinary profiled panels; The steel truss formwork can have a spacing of over 5 meters without support.

在桁架模板上臨時開洞，基本無需加固，而且機電線、管鋪設方便。

Temporary openings are made on the truss template, which basically do not require reinforcement, and the laying of electrical wires and pipes is convenient.

鋼板不參與受力、無需耐火及防腐涂料，亦無需擔心過火后修復問題，既安全又經濟，板底平整、凈高有保證，樓板雙向剛度一致、抗震性能好，解決閉口板雙向配筋問題，鋼筋間距及混凝土保護層厚度有保證。

The steel plate does not participate in stress, does not require fire-resistant and anti-corrosion coatings, nor does it need to worry about repair problems after overheating. It is safe and economical, with a flat bottom and guaranteed net height. The two-way stiffness of the floor slab is consistent, and the seismic performance is good. It solves the problem of two-way reinforcement in closed slabs, and the spacing between steel bars and the thickness of the concrete protective layer are guaranteed.

雙向板設計及施工簡便，適用于大跨度廠房，鍍層合理、栓釘焊接質量可靠、端部無需穿透焊，樓板抗剪性能好。

The bi-directional slab design and construction are simple, suitable for large-span factory buildings, with reasonable coating, reliable bolt welding quality, no need for penetration welding at the ends, and good shear resistance of the floor slab.

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