Cast-in-place concrete sandwich wall with non-dismantling bolts

Abstract

The invention discloses a cast-in-place concrete sandwich wall with non-dismantling bolts. The cast-in-place concrete sandwich wall comprises a heat preservation layer, an inner concrete layer, an outer concrete layer, mesh steel bars and non-dismantling bolt web members, wherein the inner concrete layer and the outer concrete layer are located on the two sides of the heat preservation layer correspondingly; the mesh steel bars are located in the outer concrete layer; the non-dismantling bolt web members penetrate through the heat preservation layer, the inner concrete layer, the outer concrete layer and the mesh steel bars; the outer walls of the non-dismantling bolt web members are fixedly sleeved with water stop anchoring parts; the water stop anchoring parts are located in the outer concrete layer; and the two ends of each non-dismantling bolt web member are symmetrically and fixedly connected with two formwork supporting parts. According to the cast-in-place concrete sandwich wallwith the non-dismantling bolts, the method that the three functions of permanent tying parts, formwork positioning parts for construction and formwork fixing bolts for construction of the composite concrete sandwich wall are combined is adopted, and a large amount of construction cost and steel materials for construction can be saved; and the cast-in-place concrete sandwich wall obtained after construction further has the advantages that the heat preservation effect and the structure are the same in service life, and the fire resistance limit is high.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a bolt-free cast-in-place concrete sandwich wall. Background technique [0002] Sandwich wall refers to the wall formed by filling the continuous cavity reserved in the wall with thermal insulation or heat insulation materials, and connecting the inner and outer leaves of the wall with anti-rust metal fasteners, also known as sandwich composite wall or cavity wall. [0003] At present, the cast-in-place concrete sandwich walls are all connected by grid-type connection or point-pull connection. In order to ensure the position of the formwork and the total thickness of the wall, it is necessary to place a large number of positioning steel bars or pads between the two layers of formwork, and then place through-wall bolts to fix the formwork. Therefore, the consumption of steel for construction is large and the construction cost is high. Contents of the invention [0004] ...

AI Technical Summary

Problems solved by technology

In order to ensure the position of the formwork and the total thickness of the wall, it is necessary to place a large number of positioning steel bars or pads between the two layers of formwork, and then place through-wall bolts to fix the formwork, so the consumption of steel for construction is large and the construction cost is high.

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