Aluminum plate glass curtain wall cold and hot bridge conversion structure and construction method

Abstract

The invention discloses an aluminum plate glass curtain wall cold and hot bridge conversion structure and a construction method. In the structure, vertical C-shaped steel is welded to the bottom side of a lower flange of a main structure steel beam, transverse C-shaped steel is welded to the bottom of the vertical C-shaped steel, angle steel is welded to the two sides of the bottom side of an upper flange and the two sides of the top side of the lower flange of the structure steel beam, heat preservation layers formed by heat preservation rock wool boards are fully laid in the two sides of a web of the main structure steel beam and the side edges of the angle steel on the two sides, the heat preservation layers formed by the heat preservation rock wool boards are fully laid in the space defined by the lower flange of the main structure steel beam, the vertical C-shaped steel and the transverse C-shaped steel, cement fiber boards are laid on the two faces of each heat preservation layer, and the cement fiber boards are fixedly installed on the side edges of the angle steel through self-tapping screws and fixedly installed on the side edges of the vertical C-shaped steel and the transverse C-shaped steel through self-tapping screws. A reinforced concrete lower suspended beam is omitted, construction is convenient, construction can be directly carried out in a floor, and the construction quality is high.

Description

technical field [0001] The invention belongs to the field of curtain wall construction, and in particular relates to a cold-heat bridge conversion structure and a construction method of an aluminum plate glass curtain wall. Background technique [0002] In the aluminum plate glass curtain wall system, the joint part of the aluminum plate glass curtain wall and the main structure is the position that needs to be dealt with mainly. The current treatment methods are as follows: figure 1 Shown: outside the main structure floor and inside the aluminum slab, a concrete and masonry structure is adopted, that is, a concrete anti-sill is added on the upper side, and the concrete anti-sill is constructed by masonry, and a reinforced concrete hanging beam is added on the lower side, and the reinforced concrete The lower hanging beam is poured together with the main structure floor, and then the thermal insulation rock wool board is pasted on the concrete anti-sill and the reinforced co...

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Problems solved by technology

[0003]1) In order to meet the fire protection requirements, it is necessary to complete the fireproof coating spraying of the steel beams of the main structure before the construction of the reinforced concrete lower hanging beams, and then assemble the formwork. The inner formwork cannot be completely removed after concrete pouring, and part of the formwork is exposed, requiring secondary cleaning and polishing. The construction is time-consuming and laborious. The fire-resistant coating of the entire steel beam cannot be formed at one time, which affects the quality. Residual formwork and other materials It is also a hidden danger, and it also causes a lot of material waste and labor loss;

[0004]2) The concrete hanging beam is a cantilevered structure, and additional support systems and reinforcement systems need to be added during construction, which increases the project cost;

[0005]3) The aluminum plate on the curved facade has high requirements on the concrete forming effect, which increases the cost of labor and construction period;

[0006]4) The thermal insulation rock wool board needs to be constructed with hanging baskets when the curtain wall unit starts construction, which greatly affects the progress of the project and increases the cost of equipment

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