Internal formwork structure for elevator shaft and construction method

Abstract

The invention provides an internal formwork structure for an elevator shaft and a construction method. The internal formwork structure comprises segmental formwork plates for constructing an internalformwork, internal corner steel angles for protecting the segmental formwork plates, wall penetrating bolts for positioning the segmental formwork plates, split bolts for supporting the segmental formwork plates, wood braces for reinforcing the segmental formwork plates, and double steel tubes for reinforcing the segmental formwork plates. The internal corner steel angles are located at internal corners of the elevator shaft and are connected with the segmental formwork plates; the wood braces arranged horizontally serve as secondary braces for the internal formwork structure, and contact withvertical wood brace plugs in an attached mode; the double steel tubes arranged vertically serve as primary braces for the internal formwork structure. The internal formwork structure has the advantages that the separate design of the formwork is based on the internal corner steel angles, the segmental formwork plates can be mounted and demounted easily, and the problem that the segmental formworkplates are easily damaged due to no avoidance position between the segmental formwork plates and surrounding formwork plates is solved effectively.

Description

technical field [0001] The invention relates to the construction field of an elevator shaft, in particular to an inner mold structure and a construction method for elevator shaft construction. Background technique [0002] As the city develops faster and faster, and there are more and more high-rise buildings, elevators are widely used. The elevator shaft is the shaft for installing elevators. The size of the shaft is determined according to the type of elevator. Elevator tracks and counterweight tracks, the elevator wells reserved during the construction of civil works often do not meet the elevator installation standards, which requires the use of standard elevator well formwork to re-construct the reserved elevator wells in order to achieve the installation of elevators Standard, the traditional internal form support of elevator shafts in high-rise buildings is difficult to install and dismantle the formwork due to the many internal corners in the shaft, small plane size,...

AI Technical Summary

Problems solved by technology

[0002] As the city develops faster and faster, and there are more and more high-rise buildings, elevators are widely used. The elevator shaft is the shaft for installing elevators. The size of the shaft is determined according to the type of elevator. Elevator tracks and counterweight tracks, the elevator wells reserved during the construction of civil works often do not meet the elevator installation standards, which requires the use of standard elevator well formwork to re-construct the reserved elevator wells in order to achieve the installation of elevators Standard, the traditional internal form support of elevator shafts in high-rise buildings is difficult to install and dismantle the formwork due to the many internal corners in the shaft, small plane size, and no retreat between the surrounding formwork. Especially

The removed formwork often needs to be hoisted to the ground for maintenance, which is labor-intensive and affects the forming quality of the elevator shaft

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