Four-way stair formwork supporting system and construction method

Abstract

The invention relates to the technical field of building construction, and discloses a four-way stair formwork supporting system and a construction method thereof. The four-step stair formwork supporting system comprises a first supporting device used for supporting a first rest platform, a second rest platform, a first step stair and a second step stair and a second supporting device used for supporting an upper floor, a third rest platform, a third step stair and a fourth step stair. Each of the first supporting device and the second supporting device comprises a plurality of vertical rods, cross rods are connected between the vertical rods, adjustable jacking supports are arranged at the upper ends of the vertical rods, templates are arranged on the adjustable jacking supports, a pedestal is detachably arranged at the lower ends of the vertical rods of the second supporting device, and the templates are arranged on the pedestal. And the pedestal is arranged on the template corresponding to the lower end of the vertical rod. The supporting vertical rods are positioned through the mounting pedestals, so that reliable stress of a supporting system is guaranteed, the hidden danger of leakage caused by later hole filling is avoided, and the construction efficiency is also improved. And meanwhile, the overall stability is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a four-run staircase formwork support system and a construction method. Background technique [0002] In recent years, there are many projects in public buildings. The basement, the first floor to the third floor are all higher floors, with a floor height of about 5m. Designers often design the stairs on the higher floors as double-split four-run stairs. The on-site construction of the four-run staircase is like pouring the whole floor together. [0003] In the existing scheme, the double-split upper two-run stair structural formwork support system is erected directly on the surface of the double-split lower two-run stair formwork. In fact, the intermediate rest platform or the upper floor of the double-split four-run staircase contains ladder beams and frame beams, etc. Because the upper parts of the ladder beams and frame beams are usually densely arranged, resul...

AI Technical Summary

Problems solved by technology

In fact, the middle rest platform or the upper floor of the double-split four-run staircase contains ladder beams and frame beams. Because the upper parts of the ladder beams and frame beams are usually densely arranged, the double-split two-run staircase has ladder beams and frame beams. The frame beam formwork support system cannot fall on the surface of the lower two-run staircase beam bottom formwork; moreover, the vertical rod of the double-split upper two-run staircase structure tread plate formwork support system is installed on the lower two-run staircase structure tread plate formwork surface and its positioning is unstable , in both cases it is difficult to ensure the effective force bearing of the support system

In addition, the vertical rods of the formwork support system of the double-split upper two-run stairs fall on the lower two-run stairs or the rest platform, and it is very difficult to remove the vertical rods when they are formed with concrete pouring. The hole needs to be filled later, and there is a hidden danger of leakage

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