Building stair board supporting structure

The utility model discloses a building stair board supporting structure. According to the technical scheme, the device comprises a bearing part, a supporting plate and a surrounding part; the number of the bearing parts is two. A plurality of stepped layers which are arranged in a stepped manner are arranged on the bearing piece; wherein the supporting plates are arranged above the step layer, thesurrounding piece is of a Z-shaped structure, the two ends of the surrounding piece are arranged above the adjacent supporting plates respectively, a clamping structure used for fixing the bearing piece and the supporting plates is arranged between the bearing piece and the supporting plates, the stair is good in firmness, steps can be simplified to a large extent, and time and cost are saved. 本实用新型公开了一种建筑物楼梯板支护构造，其技术方案要点是包括承重件、支撑板以及包围件，所述承重件设置有两个，所述承重件上设置有若干个呈阶梯状设置的阶梯层，所述支撑板设置于阶梯层上方，所述包围件呈"Z"字型结构设置，所述包围件的两端分别置于相邻的支撑板上方，所述承重件和支撑板之间设置有用于固定两者的卡接结构，该楼梯牢固性好并且能够较大程度的简化步骤，节约时间成本。