Large-span long-cantilever connection structure and construction technique

Abstract

The invention discloses a large-span long-cantilever connection structure and a construction technique. The structure plane is arranged in the form of rectangle, two towers are arranged beneath the standard layer, wherein a tower is a cylinder body (4), the left and right sides of the tower respectively support a large-span and long-cantilever floor at the upper part, and the width of the cylinder body (4) is less than the width of the floor at the upper part, and the vertical face of the tower forms a model with a wide upper part and a narrow lower part; the other one tower is a framework shear wall structure. The large-span and long-cantilever is connected to the two towers through a side-span steel truss (1) and a middle-span steel truss (2) which are penetrated to each other. The side-span steel truss (1) is arranged within the scale of the cylinder (4), and supported on a supporting steel truss (3) extended from the cylinder (4) along the vertical direction. A steel framework beam (7) and a secondary steel beam (8) are equally arranged on the upper floor so as to form a floor cover supporting system. The floor cover adopts a steel bar truss floor support plate. The large-span long-cantilever connection structure solves the technical problem that the vertical face model is the connection structure with the wide upper part and the narrow lower part, and suitable for multi-layer and high rise buildings; moreover, the large-span long-cantilever connection structure has very strong universality and application scale.

Description

technical field [0001] The invention relates to a novel connected structure used in multi-storey and high-rise buildings, in particular to a large-span and long cantilever connected structure and construction technology, which belongs to the innovative technology in the field of large-span and long cantilever. Background technique [0002] In large and medium-sized cities, high-rise buildings are often restricted by various factors such as urban planning, site conditions, building functions, floor area ratio, height limit, fire protection, ventilation and lighting, etc., which objectively provide objective conditions for the diversification of building facade shapes. Correspondingly, the continuous innovation of new structural systems provides technical support for a wide variety of architectural shapes. When the building is divided into two towers at the bottom, and there is a large span between the two towers, the two floors of the standard floor are connected as a whole, ...

AI Technical Summary

Problems solved by technology

In recent years, with the increasing diversification and complexity of architectural shapes, floor-to-ceiling towers below conjoined floors may appear smaller than the width of the upper floors in the direction of floor width, which will inevitably lead to the design experience of solving long-span and long cantilever solutions in the past. Not easy to apply directly to this new situation

That is to say, there is no directly corresponding floor-to-ceiling wall column as the support for the corresponding support position of the long-span and long-cantilever floor, and the existing technology and engineering experience are not enough to properly solve this problem

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