Outward-cantilever independent large-cantilever steel corridor provided with prestressed beam plates

Abstract

The invention discloses an outward-cantilever independent large-cantilever steel corridor provided with prestressed beam plates. The large-cantilever steel corridor is manufactured through the following specific implementation steps of (1) construction preparation; (2) in-place placing of section steel columns; (3) arrangement of linear prestressed tendons; (4) pouring and tamping of steel reinforced column concrete and prestressed beam concrete; (5) pre-stress tensioning and anchoring; (6) bonded prestress grouting; (7) anchorage device plugging protection; (8) corridor mounting; (9) steel corridor temporary support graded unloading; (10) post-cast strip concrete pouring; and (11) structure detection in construction and use stages. According to the outward-cantilever independent large-cantilever steel corridor provided with prestressed beam plates, the index requirements for quality control of structural cracks, deformation, deflection and the like can be met, and the construction technological process is advanced, economical and reasonable; and the method is suitable for installation of the outer cantilever independent type single-layer or multi-layer large-cantilever steel structure corridor and quality control of construction of steel reinforced concrete, bonded prestressed steel reinforced beams and no-bonded-prestress beam slab concrete applied to local parts of a concrete tower of the outward-cantilever independent type single-layer or multi-layer large-cantilever steel structure corridor.

Description

technical field [0001] The invention relates to the technical field of corridors, in particular to an overhanging independent large cantilever steel corridor provided with prestressed beams. Background technique [0002] With the development of science and technology, economy, culture and the improvement of people's aesthetic level, the design of architectural structure has surpassed the traditional limitations, and a large number of novel and unique structures have emerged as the times require. Structure is one of the representatives. The external large cantilever steel corridor transmits additional internal force to the connected concrete tower structure, which will cause deformation and cracks in the local components of the concrete tower structure. Excessive deformation of the local components of the concrete tower will also increase the deflection of the end of the steel corridor twice. In the construction of such structures, higher requirements and challenges are put ...

AI Technical Summary

Problems solved by technology

[0004] 1. In the existing large cantilever steel corridor with prestressed beams and slabs, the tower structure may be deformed due to gaps, and the deflection at the end of the large cantilever steel corridor may not meet the requirements. There will be dangers in the actual application process

[0005] 2. The existing cantilevered steel corridor with prestressed beams and slabs is mostly unreasonable in the public technological process. If the construction process is not properly controlled, it is easy to cause the steel beams and prestressed beams to be damaged. Cracks in the concrete beams and slabs, and excessive deflection at the end of the steel corridor affect the quality of the structure and even the safety of the structure

[0006] 3. Most of the existing overhanging independent large cantilever steel corridors with prestressed beams and slabs are not suitable for the quality control of the installation and construction of overhanging independent single-layer or multi-layer large cantilever steel structure corridors. This in turn reduces its functionality and at the same time has a smaller scope of application

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