Construction method of prefabricated outer wall cast-in-place section unilateral formwork of sandwich heat insulating plate with assembled structure

Abstract

The invention discloses a construction method of a prefabricated outer wall cast-in-place section unilateral formwork of a sandwich heat insulating plate with an assembled structure. The construction method includes the steps that preparation is conducted, specifically, a first connecting part is pre-embedded as a steel bar perpendicularly and fixedly connected to a steel plate, a second connecting part is pre-embedded as a steel bar with a screw thread perpendicularly and fixedly connected to the steel plate, a third connecting part is a straight steel bar, and one end of the third connecting part is provided with a screw thread; a fourth connecting part is a straight steel bar; the second connecting part is pre-embedded in the outer blade plate of the cast-in-place part of a wall body when a wall plate is prefabricated; the second connecting part and the first connecting part are pre-embedded in the outer blade plate when the outer wall is prefabricated at the corner and wing wall, and the third connecting part is pre-embedded in the inner blade plate; the fourth connecting part is arranged on the end surface of the inner blade wall plate; the construction of the wall body cast-in-place section steel bar is finished, the steel bar of the fourth connecting part is connected with the steel bar of the first connecting part by using an additional steel bar; the screw thread end of the second connecting part is connected with an outer screw rod through a long nut, and the outer screw rod penetrates through a template hole and is locked by using a fastener; and after the cast-in-place section concrete reaches the designed strength, the template is removed, and the outer screw rod, a conical PVC sleeve pipe and the long nut are cleaned and reused.

Description

technical field [0001] The invention belongs to the technical field of prefabricated wall construction, and in particular relates to a single-side formwork construction method for a prefabricated external wall cast-in-place section of an assembled structure sandwich insulation board. Background technique [0002] When prefabricating the sandwich insulation exterior wall, consideration should be given to providing a structure that is convenient for construction when assembling the wall. Generally, holes are reserved on the prefabricated exterior wall panels. After the prefabricated wall panels are installed, these reserved holes are used to install an outer frame or a tool-type protective frame on the outside of the wall panel, and the operator stands on the outer frame to carry out construction. After the steel bars are constructed, pull bolts are used to pass through the reserved bolt holes on the prefabricated wallboard on the outer side of the outer leaf board of the pref...

AI Technical Summary

Problems solved by technology

[0003] In order to facilitate the construction of the prefabricated wall in the prior art during the assembly period, holes are reserved in the wall structure during th...

Images