Composite outer wall L-shaped connecting joint and construction method thereof

Abstract

Disclosed is a composite outer wall L-shaped connecting joint which comprises a first composite outer wall and a second composite outer wall. The end of the first composite outer wall and the end of the second composite outer wall are connected in an L-shaped right angle mode, and the first composite outer wall and the second composite outer wall each comprise a composite prefabricated heat-insulating outer wall body, an outer-leaf wallboard, a middle cast-in-situ layer and an inner-leaf wallboard which are sequentially connected. The side end face of the composite prefabricated heat-insulating outer wall body in the first composite outer wall straightly extends to the extension line of the composite prefabricated heat-insulating outer wall body in the second composite outer wall and thenturns back in an L-shaped right angle mode in the direction of the extension line of the second composite outer wall , and finally, the side end face of the composite prefabricated heat-insulating outer wall body in the first composite outer wall and the side end face of the composite prefabricated heat-insulating outer wall body in the second composite outer wall are connected and matched. According to the composite outer wall L-shaped connecting joint, the structure is simple, construction is easy, L-shaped corners of the two composite outer walls are provided with heat-insulating structures, and the technological properties of overall heat preservation and energy conservation of a prefabricated building are kept; and meanwhile, the structural strength and overall property of internal connection of the composite outer walls are further enhanced.

Description

Technical field: [0001] The invention belongs to the technical field of construction engineering, and in particular relates to an L-shaped connection node of a superimposed outer wall and a construction method thereof. Background technique: [0002] Prefabricated buildings have been widely recognized and promoted for their outstanding advantages such as high quality, high efficiency, standardization, heat preservation, energy saving, and environmental protection. For example, the prefabricated laminated thermal insulation exterior walls in prefabricated buildings are not only prefabricated in high-efficiency and high-quality production in factories, but also have thermal insulation and energy-saving functions. However, when the prefabricated laminated exterior wall and the prefabricated laminated exterior wall are connected and assembled at right angles, the L-shaped joints are connected by cast-in-place columns or the steel bars protruding from the ends of the two prefabric...

AI Technical Summary

Problems solved by technology

However, when the prefabricated laminated exterior wall and the prefabricated laminated exterior wall are connected and assembled at right angles, the L-shaped joints are connected by cast-in-place columns or the steel bars protruding from the ends of the two prefabricated laminated exterior walls are overlapped, and then poured concrete is molded and fixed. Therefore, the L-shaped connection node of the two prefabricated laminated exterior walls is not covered by the insulation layer, so that the L-shaped right angle of the laminated exterior wall of the prefabricated building has no thermal insulation function, which greatly affects the thermal insulation and energy-saving technical performance of the prefabricated building.

In addition, the prefabricated laminated external wall is a layered product structure, and the structural strength and overall performance of the internal connection are not good. The same is true for the L-shaped connection joint of two prefabricated laminated external wall panels, and its structural strength and overall performance need to be further improved.

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