Methods of Strengthening Masonry Walls with Steel Structures

Abstract

The invention discloses a method for reinforcing a masonry wall through a steel structure. The method comprises the following steps: firstly, holes are drilled at the two ends of a ring beam (1) respectively, high-strength bolts penetrate through the holes respectively, and two reinforcing steel plates (4) on the two sides of a common brick wall (2) are reliably connected with the ring beam (1) at the upper end of the wall; secondly, connecting pieces (6) are connected with construction pillars (3) on the two sides at the bottom of the wall through chemical bolts; thirdly, the lower end of the reinforcing steel plate (4) is connected to a flange (7) of the connecting piece (6) through a high-strength bolt, and the reinforcing steel plate (4) on the back side is connected in the same manner; fourthly, holes are drilled in the reinforcing masonry wall (2), bar buckles (5) are inserted, bent and welded to form square-in-square buckles, so as to fasten the steel plates (4) on the two sides; and fifthly, the surface of the wall body (2) is coated with neat cement or other covering materials, so that the reinforcement of the wall body (2) is completed. The method enhances the deformation capability of the wall body, prolongs the time of the wall body from cracking to damage, and improves the energy consumption capability of the wall body remarkably.

Description

technical field [0001] The invention relates to the field of building reinforcement, in particular to a method for reinforcing a masonry wall with a steel structure. Background technique [0002] Masonry structures are widely used in the fields of industrial and civil buildings in my country, but masonry materials have low tensile, bending, and shear strengths, and are brittle, poor in ductility, and poor in energy dissipation. Brick walls are prone to cracking during earthquakes Even collapsed. Especially in the Wenchuan earthquake in 2008, masonry buildings were severely damaged, causing heavy casualties and economic losses. Most of the existing masonry structures in our country have reached or approached the design reference period, and the material strength is very low, so it is urgent to carry out seismic reinforcement. [0003] At present, the commonly used wall reinforcement methods include reinforced mesh cement mortar method (commonly known as "plywood wall" method...

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Problems solved by technology

[0002] Masonry structures are widely used in the fields of industrial and civil buildings in my country, but masonry materials have low tensile, bending, and shear strengths, and are brittle, poor in ductility, and poor in energy dissipation. Brick walls are prone to cracking during earthquakes even collapsed

Especially in the 2008 Wenchuan Earthquake, masonry buildings were severely damaged, causing heavy casualties and economic losses

Most of the existing masonry structures in our country have reached or approached the design reference period, and the material strength is very low, so it is urgent to carry out seismic reinforcement.

[0003] At present, the commonly used wall reinforcement methods include reinforced mesh cement mortar method (commonly known as "plywood wall" method), outsourcing reinforced concrete surface layer reinforcement method, etc., but these two methods have a lot of on-site wet work, long construction period and relatively high cost. High, and because the wall is thickened, the usable area of ​​the building is also affected to a certain extent, so there is an urgent need for a new seismic reinforcement method for the reinforcement of masonry walls

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