Advantages: The safety evaluation platform can be moved to other positions after the construction is completed by setting rollers at the bottom of the platform and supporting structures behind the back plate, which will not affect the normal work of the construction site, and can be used for many times to save costs; At the same time, the safety evaluation platform is more stable under the support of the supporting structure, and is suitable for various construction sites in different environments.

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Once the masonry is completed, the location of the platform will not be convenient to change, and after the construction is completed, the safety evaluation platform also needs to be removed, which wastes raw materials and manpower.

(a) Structural Diagram (b) Right View (c) Connection Diagram of Square Pipe and Straight Bar (1) Structural Diagram of Commentary Platform Supporting structure includes supporting diagonal bar, supporting cross bar and support body for supporting diagonal bar and supporting cross bar.

Safety education is the first work to be carried out when entering the construction site, which is inseparable from the safety evaluation platform.

The bottom surface of the table is provided with a lifting mechanism for adjusting the height of the table, and steps are arranged on both sides.

Therefore, in order to adapt to the actual situation of the construction site, this paper proposes a new safety evaluation platform to solve the above problems.

The worktop comprises a truss structure and a plane plate arranged on the truss structure.

Lifting Loop

The side of the first panel close to the second panel is provided with a plurality of square tubes, and the second panel is provided with a plurality of straight rods corresponding to the square tubes, which are inserted in the square tubes.

Excerpted from Construction Worker, December 2020, Xi Tongzhen, Hao Jiandong, Jin Long Source: Architectural Technology Magazine is only for exchange and learning.

The channel steel block is fixedly connected with the ground, and the support cross bar and the support diagonal rod are connected with the threaded rod respectively.

The support body comprises a channel steel block and a threaded rod which is arranged on the channel steel block and connected with the channel steel block by threads.

The support body is fixed on the ground, the support cross bar and the support diagonal bar are respectively connected between the support body and the back plate, and the support diagonal bar is arranged above the support cross bar.

Production method The safety evaluation platform includes a table top and a back plate vertically arranged at one end of the table top.

The table top comprises a first panel and a second panel which is arranged in parallel with the first panel and is fixedly connected; The back panel includes a third panel connected with the first panel and a fourth panel connected with the second panel.

A plurality of square tubes for connecting the back plate are arranged on the side of the table near the back plate, and a plurality of straight rods corresponding to the square tube are arranged on the bottom end face of the back plate, which are inserted in the square tube.

The outer circumference of the straight rod is provided with a plurality of first through holes, the square tube is provided with a second through hole corresponding to the first through hole, and the straight rod is inserted in the square tube and connected by bolts.

The back of the back plate is provided with a support structure.

The traditional safety evaluation platform is generally made of temporary bricks.

The frame structure of the table top and the back plate is welded by square tubes (Figure 1).

The bottom of the table top is provided with a plurality of rollers.