The floor support plate does not require bolts to be designed according to the composite beam, but it must be constructed according to certain bolts to ensure the integrity of the plate and beam. The direction along the rib on the beam support, whether it is continuous or hinged, depends not on the profiled steel plate, but on the negative bending moment reinforcement. The compression of the profiled steel plate can be completely ignored, and the vertical rib direction is generally considered as hinged, but should be equipped with crack resistant structural reinforcement.

關(guān)于樓承板的配筋計(jì)算，一個(gè)是上部鋼筋(包括負(fù)彎矩鋼筋)的問(wèn)題，一個(gè)是下部受力鋼筋的問(wèn)題。

Regarding the reinforcement calculation of the floor support plate, there are two issues: one is the upper reinforcement (including negative bending moment reinforcement), and the other is the lower load-bearing reinforcement.

上部鋼筋，也叫分布鋼筋溫度鋼筋，起的作用主要是抵抗四溫度變化和混凝土收縮在垂直于板跨方向所產(chǎn)生的拉應(yīng)力。通常鋼筋直徑不應(yīng)小于6mm，間距不大于250mm。而壓型鋼板樓板的上部鋼筋計(jì)算方法和普通混凝土樓板相同，按照此方式計(jì)算即可。

The upper reinforcement, also known as distributed reinforcement temperature reinforcement, mainly plays a role in resisting the tensile stress generated by temperature changes and concrete shrinkage in the direction perpendicular to the slab span. Usually, the diameter of the steel bars should not be less than 6mm and the spacing should not exceed 250mm. The calculation method for the upper reinforcement of the profiled steel plate floor slab is the same as that of the ordinary concrete floor slab, and can be calculated according to this method.

下部鋼筋，主要是承受正彎矩，根據(jù)壓型鋼板的類型可以按照組合樓板和非組合樓板兩個(gè)方面來(lái)考慮。無(wú)論是上部鋼筋還是下部鋼筋均需考慮樓板的保護(hù)層厚度，下部鋼筋尤其不允許直接放置在壓型鋼板上面。

The lower steel bars mainly bear positive bending moments, and can be considered in two aspects: composite and non composite slabs based on the type of profiled steel plates. Both the upper and lower steel bars need to consider the thickness of the protective layer of the floor slab, and the lower steel bars are particularly not allowed to be placed directly on the profiled steel plate.

組合樓板截面配筋可采用以下幾種形式：組合樓承板正彎矩區(qū)的壓型鋼板滿足受彎承載力要求時(shí)，正彎矩區(qū)可不配置鋼筋，可僅在負(fù)彎矩區(qū)配置受力釗筋及在樓板頂面配置溫度抗裂鋼筋；組合樓承板正彎矩區(qū)的壓型鋼板不能滿足受彎承載力要求或耐火極限計(jì)算不能滿足要求時(shí)，可在正彎矩區(qū)配置受力鋼筋；當(dāng)組合樓承板內(nèi)承受較大拉應(yīng)力時(shí)，可在樓承板板肋頂布置鋼筋網(wǎng)片。

The reinforcement of composite floor sections can be in the following forms: when the profiled steel plate in the positive bending moment area of the composite floor bearing plate meets the requirements for bending bearing capacity, the positive bending moment area may not be equipped with reinforcement, and the load-bearing reinforcement can only be installed in the negative bending moment area and the temperature crack resistance reinforcement can be installed on the top surface of the floor; When the profiled steel plate in the positive bending moment area of the composite building support plate cannot meet the requirements for bending bearing capacity or the fire resistance limit calculation cannot meet the requirements, load-bearing steel bars can be configured in the positive bending moment area; When the composite floor support plate is subjected to significant tensile stress, steel mesh can be arranged at the top of the rib of the floor support plate.

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