Existing masonry structure transformation construction method

Abstract

The invention relates to the technical field of constructional engineering transformation, in particular to an existing masonry structure transformation construction method which comprises the following steps: 1, checking calculation of a double-spliced channel steel beam; 2, checking calculation of the local compressive bearing capacity of a bearing wall in the existing masonry; 3, positioning and paying off; 4, reinforcing a channel steel beam support; 5, performing channel steel connection and corrosion prevention; 6, installing the double-spliced channel steel beam; and 7, dismantling a wall body. Epitaxial and embedded design concepts are adopted for existing masonry bearing wall dismantling and existing hole broadening transformation respectively, channel steel lintels extend outwards or are embedded into the two sides of a to-be-dismantled wall body to underpinned the original masonry bearing wall, and then horizontal support is provided for lower wall body dismantling. The method is safe and convenient to construct, low in construction cost and good in anti-seismic property, the key technical problems of existing masonry structure transformation design and construction aresolved, the efficient and energy-saving environment-friendly construction requirement is met, and great application and popularization value is achieved.

Description

technical field [0001] The invention relates to a construction method for rebuilding an existing masonry structure, which belongs to the technical field of demolition of the existing masonry load-bearing wall and opening widening and reconstruction design and construction, and is suitable for existing masonry structures such as old masonry buildings whose use functions need to be changed Structural renovation design and construction. Background technique [0002] After the founding of the People's Republic of my country, the masonry structure in our country has developed rapidly, especially in recent years, the annual output of bricks has reached the sum of the annual output of bricks in other countries in the world, and more than 90% of the walls are made of masonry materials. With the improvement of my country's construction technology and living standards, the original old masonry houses are difficult to meet the needs of the current use functions, and a large number of e...

AI Technical Summary

Problems solved by technology

With the improvement of my country's construction technology and living standards, the original old masonry houses are difficult to meet the needs of the current use functions, and a large number of existing masonry structures need to be rebuilt

[0003] The traditional construction technology has CN109113363A "Retrofitting Method for Replacing Masonry Load-bearing Wall with H-shaped Steel Beams", by opening installation holes for installing H-shaped steel beams and reinforcing panels on the masonry wall, and using the method of pasting steel plates to reinforce the support. The wall at the fulcrum of the steel beam is replaced for reinforcement, but this technology lacks scientific checking and analysis, and has no general application value; second, it is not suitable for the widening and reconstruction of the existing masonry load-bearing wall; Complicated, it is difficult to ensure the reconstruction of long-span masonry load-bearing walls, and the construction cost is high

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