Masonry structure door and window hole toughness improving method adopting special C-shaped steel and construction method thereof
A technology for doors, windows, openings and masonry structures, applied to structural elements, building components, building types, etc., can solve serious problems, earthquake damage, poor shear resistance, etc., and achieve the effects of low cost, reduced damage, and enhanced integrity
Pending Publication Date: 2021-02-05
中震(北京)工程检测股份有限公司
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Problems solved by technology
[0003] The invention proposes a special C-shaped steel to improve the toughness of masonry structure door and window openings and its construction method, that is, a closed special C-shaped steel is arranged at the door and window openings, and the door and window holes are edged, mainly to solve the earthquake resistance of masonry structures. Poor performance, tensile and shear resistance, and serious earthquake damage at door and window openings during earthquakes
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[0019] A special C-shaped steel is used to improve the toughness of masonry structure door and window openings and its construction method, see Figures 1 to 3 As shown, including the original masonry wall 1 and special C-shaped steel 2; holes are drilled at intervals of 300 mm at the openings of the original masonry wall 1, and the openings of the doors and windows of the original masonry wall 1 are centered. Insert the threaded steel bar 5, and pour polymer mortar into the hole. After the implanted threaded steel bar 5 reaches a certain strength, insert the threaded steel bar 5 corresponding to the installation through hole 6 of the specially made C-shaped steel 2 into it. , and fasten them respectively with nuts 4, and carry out the same operation on the door and window openings on other sides at the same time. The diameter of the drilled hole at the opening of the door and window of the body 1 is φ30mm, and the drilling depth is not less than 200mm; the diameter of the thr...
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The invention relates to a masonry structure door and window hole toughness improving method adopting special C-shaped steel and a construction method thereof, and belongs to the technical field of tough buildings. The masonry structure door and window hole toughness improving method adopting the special C-shaped steel comprises an original masonry wall body and the special C-shaped steel; drilling is conducted on the position of an original masonry wall body door and window hole, the drilling position is the center of the original masonry wall body door and window hole, threaded steel bars are embedded, and polymer mortar is poured into the hole; after the embedded threaded steel bars reach certain strength, the threaded steel bars are correspondingly sleeved with mounting through holes of the cut special C-shaped steel, and nuts are used for fastening correspondingly; and meanwhile, the same operation is conducted on door and window holes of other edges, and after the nuts are all fastened, the corner connecting positions of the special C-shaped steel are welded correspondingly.
Description
technical field [0001] The invention relates to a special C-shaped steel to improve the toughness of masonry structure door and window openings and a construction method thereof, belonging to the technical field of toughness buildings. Background technique [0002] Masonry structure houses are the main structural form of existing buildings in our country, accounting for more than 60% of civil buildings. However, the basic material and connection method of the masonry structure determine its brittleness. Therefore, the masonry structure generally has some characteristics such as small deformation capacity, poor seismic performance, low tensile, shear and bending strength, and large self-weight. Disadvantages, once a strong earthquake occurs, the earthquake damage is often more serious. Therefore, it is very necessary to provide toughness for masonry structures that cannot meet the seismic requirements, especially the earthquake damage at the door and window openings is more ...
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IPC IPC(8): E04G23/02E04H9/02E04B1/98E04B1/00E04C5/01
CPCE04B1/00E04B1/98E04C5/01E04G23/02E04G23/0218E04H9/027
Inventor 董有贾正华鞠树森
Owner 中震(北京)工程检测股份有限公司