Large cantilever bare concrete stair and construction method thereof

A technology of fair-faced concrete and large overhangs, which is applied in the direction of stairs, ladder-like structures, formwork/formwork/work frames, etc. It can solve the problems that the appearance effect of fair-faced concrete is not easy to guarantee, and lack of construction methods, etc., to ensure structural safety, Guarantee the effect of clear water effect

Active Publication Date: 2018-01-26
朱锫建筑设计咨询(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combination of cantilever structure, fair-faced concrete structure and staircase structure has always been a difficult point in construction. First, there is a large shear force and negative bending moment at the root of the cantilever structure. The anchorage force requirement of the cantilever structure is to ensure the safety of the structure. secondly, fair-faced concrete directly utilizes the natural texture after concrete molding as the concrete of the finishing

Method used

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  • Large cantilever bare concrete stair and construction method thereof
  • Large cantilever bare concrete stair and construction method thereof
  • Large cantilever bare concrete stair and construction method thereof

Examples

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Example Embodiment

[0023] A large cantilevered fair-faced concrete staircase, which includes a stair section and a stair platform, one side of the stair section and the stair platform is connected with a wall, and the other side is a cantilever structure, and the connection position of the stair platform and the wall is set There are shear keys, which are multiple I-beams pre-buried in the wall.

[0024] The I-beam is 14-gauge I-beam, and the spacing is 500mm.

[0025] The stair platform includes a special-shaped fence, and the special-shaped fence is a vertical inclined board, the outer side is a vertical surface, and the inner side is an inclined surface.

[0026] A construction method of a large cantilever fair-faced concrete staircase as claimed in claim 1, comprising the following steps:

[0027] Step 1: Casting the wall at the rooting part of the cantilevered stairs

[0028] In the process of wall pouring, the steel bar and shear key of the stair platform cantilever plate are reserved ac...

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Abstract

The invention relates to a large cantilever bare concrete stair and a construction method thereof. The large cantilever bare concrete stair comprises stairsteps and stair platforms. One sides of the stairstep and the stair platforms are connected with a wall body; the other sides of the stairstep and the stair platforms are of cantilever structures; shear keys are arranged at connecting positionsof the stair platforms and the wall body and are multiple joist steel pre-embedded into the wall body. The construction method comprises the steps of setting the shear keys, bracing bare cantilever stair formworks, embedding pre-embedded parts, casting bare concrete, maintaining finished products and the like. According to the large cantilever bare concrete stair and the construction method thereof provided by the invention, special treatment measures are adopted for solving the problems of cantilever structure anchoring, bare structure formwork bracing and bear concrete casting, so that the safety of cantilever structures and an impressions effect of the bear concrete are ensured.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a large cantilever fair-faced concrete staircase and a construction method thereof. Background technique [0002] Cantilevered structure is an important means of expressing the magnificent appearance of buildings. The cantilevered slab staircase of reinforced concrete has no beams and columns, and its form is novel and light. It has been widely used in public buildings such as office buildings and libraries in recent years. As a form of architectural expression, fair-faced concrete is gradually becoming a new architectural genre. Fair-faced concrete is energy-saving and environmentally friendly, reflecting the most essential appearance of building materials. The combination of cantilever structure, fair-faced concrete structure and stair structure has always been a difficult point in construction. First, there is a large shear force and negative bending moment at the root of ...

Claims

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Application Information

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IPC IPC(8): E04F11/02E04F11/022E04F11/18E04G13/06
Inventor 陈娣朱培薛刚齐玉顺韩阳王依列孟祥永吕小龙韩默曹光王红媛杨华李光王春红牛振华张东
Owner 朱锫建筑设计咨询(北京)有限公司
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