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Methods of Strengthening Masonry Walls with Steel Structures

A technology for masonry walls and steel structures, applied in building components, building structures, building maintenance, etc. problems, to achieve the effect of low cost, shorten the reinforcement period, and improve the shear bearing capacity

Active Publication Date: 2016-08-03
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Methods of Strengthening Masonry Walls with Steel Structures
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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with specific embodiments.

[0027] As shown in the figure, when the present invention reinforces the wall, it includes the following steps:

[0028] 1) Drill two holes at both ends of the ring beam 1, and use two 8.8-grade M18 high-strength bolts to pass through, and connect the two reinforced steel plates 4 on both sides of the ordinary brick wall 2 to the ring beam 1 at the upper end reliably;

[0029] 2) Two M12 chemical bolts are used on both sides of the bottom to connect the connector 6 to the structural column 3 through its web 8;

[0030] 3) Connect the lower end of the reinforced steel plate 4 to the flange 7 of the connector 6 through three 8.8-grade M16 high-strength bolts, and the connection method of the reinforced steel plate on the back is the same;

[0031] 4) Drill holes on the reinforced masonry wall 2, insert 19 steel buckles 5, bend and weld to form clips, and fasten the steel p...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E04B1/98
Inventor 董军王蓓蓓卜海风顾忠兴
Owner NANJING TECH UNIV
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