CN109537928B - Frame beam column anti-seismic reinforcing structure and construction method - Google Patents

Frame beam column anti-seismic reinforcing structure and construction method Download PDF

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Publication number
CN109537928B
CN109537928B CN201811414041.XA CN201811414041A CN109537928B CN 109537928 B CN109537928 B CN 109537928B CN 201811414041 A CN201811414041 A CN 201811414041A CN 109537928 B CN109537928 B CN 109537928B
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frame
reinforcing
column
beams
steel
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CN109537928A (en
Inventor
张琨
吴士超
王作成
叶飞
李楠
徐晓娜
沈义
信思源
周滨
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Heilongjiang College of Construction
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Heilongjiang College of Construction
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

A frame beam column anti-seismic reinforcing structure and a construction method relate to a beam column reinforcing structure and a construction method. Frame post next-door neighbour frame roof beam below expands outward has the variable cross section to strengthen the section, the beam-ends is strengthened the channel-section steel sheet and is matchd and surround in frame roof beam next-door neighbour frame post position, and be connected fixedly with floor and variable cross section reinforcement section, the steel sheet is cuted to energy consumption reinforcement includes two arcs of angle vertically, two arcs are cuted the steel sheet lower extreme and are passed through angle steel portion and connect as an organic wholely, angle steel portion corresponds the one corner with the variable cross section reinforcement section and is connected fixedly, two arcs are cuted steel sheet upper end and beam-ends and are strengthened the channel-section steel sheet fixed as an organic whole, every arc is cuted steel sheet intermediate position and is buckled there is the U-shaped dashpot, every two adjacent U. The structure is simple and effective, construction is convenient, and simultaneously the anti-seismic performance can be improved.

Description

Frame beam column anti-seismic reinforcing structure and construction method
Technical Field
The invention relates to a beam-column reinforced structure and a construction method, in particular to a frame beam-column anti-seismic reinforced structure and a construction method.
Background
The frame structure is a bearing system formed by beams and columns, and the wall only plays roles of enclosing and separating without bearing, so that the frame structure has the advantage of flexible spatial layout and is widely applied to the field of house buildings.
Horizontal load and vertical load are resisted jointly to roof beam and post constitution frame among the frame construction, and the beam column node plays the pivot effect, is the key of transmission internal force, therefore the beam column node need be carried out the antidetonation and strengthened and maintain in order to guarantee construction safety under the circumstances that external force such as material is ageing or earthquake damages. At present, the bearing capacity of a beam-column node is generally increased by increasing the section of a beam-column or adding a reinforcing material, the shear-resistant section area of the node core area is independently increased by the aid of the reinforcing material, so that the shear strength and the rigidity are improved, but the reinforcing material has an amplification effect on earthquakes to a certain extent and is not beneficial to earthquake resistance, the section area is not basically increased by the aid of the reinforcing material, but the requirement on the operation level is high, the construction process is complex, and the reinforcing material is difficult to control and reinforce.
Therefore, a beam column node reinforcing structure which is simple and effective in structure, convenient to construct and capable of improving the seismic performance is needed.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides a frame beam-column anti-seismic reinforcing structure and a construction method.
The invention adopts the following technical scheme: a frame beam column anti-seismic reinforcing structure comprises a frame column, a floor and four frame beams which are integrally poured, wherein the four frame beams are arranged around the frame column in a cross shape, the floor is arranged on the four frame beams, the frame beam column anti-seismic reinforcing structure further comprises four beam end reinforcing groove steel plates and four energy consumption reinforcing parts, variable cross-section reinforcing sections are expanded outside the positions, close to the four frame beams, of the frame column, the four beam end reinforcing groove steel plates are respectively matched and surrounded on the positions, close to the frame column, of the four frame beams, the free ends of two support arms of each beam end reinforcing groove steel plate are respectively vertically bent to be provided with positioning wing plates, the positioning wing plates are connected and fixed with the floor through high-strength bolts, the bottom of one end, close to the frame column, of each beam end reinforcing groove steel plate is integrally provided with a positioning vertical plate, and the positioning vertical plates are connected and fixed with the variable cross-section, four energy consumption reinforcement sets up respectively at per two adjacent frame roof beam contained angle positions, and every energy consumption reinforcement includes two arc shearing steel sheets of angle vertically, two arc shearing steel sheet lower extremes pass through angle steel portion and connect as an organic wholely, angle steel portion corresponds the one corner through high strength bolt and variable cross section reinforcement section and is connected fixedly, and two arc shearing steel sheet upper ends are the perpendicular curved installation department that is equipped with respectively, the installation department is fixed as an organic whole through a high strength bolt with the location pterygoid lamina that corresponds, and every arc shearing steel sheet intermediate position is buckled and is had the U-shaped dashpot, every adjacent two the U-shaped dashpot opening sets up relatively, and closely is fixed with compound elastic block through fastening screw between the two.
The invention discloses a construction method of a frame beam-column anti-seismic reinforcing structure, which comprises the following steps:
the method comprises the following steps: firstly, supporting the connecting ends of four frame beams, crushing and removing concrete protective layers of frame columns which are adjacent to the lower parts of the four frame beams, binding reinforcing steel bars, erecting templates and pouring concrete to manufacture a variable cross-section reinforcing section;
step two: secondly, respectively surrounding four beam end reinforcing groove steel plates at positions, close to the frame columns, of the four frame beams, fixing the beam end reinforcing groove steel plates with a floor slab and the frame columns through high-strength bolts, wherein hole positions corresponding to the energy dissipation reinforcing members are reserved in the floor slab;
step three: then, fixing the four energy dissipation reinforcing members with the floor slab and the frame column through high-strength bolts respectively;
step four: and finally, filling a composite elastic block between every two adjacent U-shaped buffer grooves, fixing the composite elastic block through fastening screws, and removing the supports at the connecting ends of the four frame beams.
Compared with the prior art, the invention has the beneficial effects that: the invention adds the variable cross section reinforcement section to the frame column, and simultaneously combines the beam end reinforcement groove steel plate and the energy dissipation reinforcement member to reinforce the beam column node, the structure is simple and effective, the construction is convenient, the energy dissipation reinforcement member is a soft steel member and is provided with a U-shaped buffer groove, a composite elastic block is fixedly arranged between the U-shaped buffer grooves of the two energy dissipation reinforcement members, the anti-seismic performance is improved by utilizing the deformation buffer of the soft steel and the damping effect of the composite elastic block, and the invention has good practical value and economic benefit.
Drawings
FIG. 1 is an isometric view of the overall structure of the frame beam column seismic reinforcing structure of the present invention;
FIG. 2 is an isometric view of a variable section reinforcement section of the frame column of the present invention;
FIG. 3 is an isometric view of a beam end reinforced channel steel plate of the present invention;
figure 4 is an isometric view of a disassembled structure of the energy dissipating reinforcement of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in figures 1-4, the invention discloses a frame beam column anti-seismic reinforcing structure, which comprises a frame column 1, a floor slab 2 and four frame beams 3 which are integrally poured, wherein the four frame beams 3 are arranged around the frame column 1 in a cross shape, the floor slab 2 is arranged on the four frame beams 3, the frame beam column anti-seismic reinforcing structure further comprises four beam end reinforcing groove steel plates 4 and four energy consumption reinforcing members 5, the frame column 1 is provided with a variable cross section reinforcing section 1-1 which is expanded outside and is close to the lower parts of the four frame beams 3, the four beam end reinforcing groove steel plates 4 are respectively matched and enclosed on the positions, close to the frame column 1, of the four frame beams 3, the free ends of two arms of each beam end reinforcing groove steel plate 4 are respectively and vertically bent to be provided with a positioning wing plate 4-1, the positioning wing plates 4-1 are respectively connected and fixed with the floor slab 2 through high-strength bolts, the bottom of one end of each beam end reinforcing groove steel plate 4, which is close to one end of the, the positioning vertical plate 4-2 is fixedly connected with the variable cross-section reinforcing section 1-1 through a high-strength bolt, the four energy consumption reinforcing parts 5 are respectively arranged at the included angle position of every two adjacent frame beams 3, each energy consumption reinforcing part 5 comprises two arc-shaped shearing steel plates 5-1 with vertical angles, the lower ends of the two arc-shaped shearing steel plates 5-1 are connected into a whole through an angle steel part 5-2, the angle steel part 5-2 is fixedly connected with the corresponding one corner of the variable cross-section reinforcing section 1-1 through the high-strength bolt, the upper ends of the two arc-shaped shearing steel plates 5-1 are respectively and vertically bent to be provided with an installation part 5-3, the installation part 5-3 and the corresponding positioning wing plate 4-1 are fixed into a whole through a high-strength bolt, and a U-shaped buffer groove 5-4 is bent at the middle, openings of every two adjacent U-shaped buffer grooves 5-4 are oppositely arranged, and a composite elastic block 6 is tightly fixed between the two U-shaped buffer grooves through a fastening screw 7.
The second embodiment is as follows: as shown in fig. 1 and 4, in this embodiment, which is further described with respect to the first embodiment, the energy dissipation reinforced member 5 is an integrally formed soft steel member, and the central angle of the arc-shaped shear steel plate 5-1 is 90 °.
The third concrete implementation mode: as shown in fig. 1 and 4, this embodiment is further described as a first embodiment, and the composite elastic block 6 is composed of rubber layers and steel sheets which are alternately stacked.
The fourth concrete implementation mode: as shown in fig. 1 to 4, the present embodiment discloses a construction method of a frame beam-column earthquake-resistant reinforcing structure according to any one of the first to third embodiments, the construction method including the steps of:
the method comprises the following steps: firstly, supporting the connecting ends of four frame beams 3, crushing and removing concrete protective layers of frame columns 1 which are adjacent to the lower parts of the four frame beams 3, binding reinforcing steel bars, erecting templates and pouring concrete to manufacture a variable cross-section reinforcing section 1-1;
step two: secondly, respectively surrounding four beam end reinforcing groove steel plates 4 at positions, close to the frame columns 1, of the four frame beams 3, fixing the beam end reinforcing groove steel plates 4 with the floor slab 2 and the frame columns 1 through high-strength bolts, wherein hole positions corresponding to the energy dissipation reinforcing parts 5 are reserved in the floor slab 2;
step three: then, the four energy dissipation reinforcing members 5 are respectively fixed with the floor slab 2 and the frame column 1 through high-strength bolts;
step four: and finally, a composite elastic block 6 is inserted between every two adjacent U-shaped buffer grooves 5-4 and is fixed through a fastening screw 7, and the support of the connecting ends of the four frame beams 3 is removed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. The utility model provides a frame beam column reinforced structure that combats earthquake, includes frame post (1), floor (2) and four frame roof beams (3) that integrative was pour, four frame roof beams (3) are the cross setting around frame post (1), floor (2) set up on four frame roof beams (3), its characterized in that: the frame beam column anti-seismic reinforcing structure further comprises four beam end reinforcing groove steel plates (4) and four energy consumption reinforcing parts (5), variable cross-section reinforcing sections (1-1) are expanded below the frame column (1) close to the four frame beams (3), the four beam end reinforcing groove steel plates (4) are respectively matched and surrounded at positions of the four frame beams (3) close to the frame column (1), the free ends of two arms of each beam end reinforcing groove steel plate (4) are respectively and vertically bent to be provided with positioning wing plates (4-1), the positioning wing plates (4-1) are respectively connected and fixed with a floor slab (2) through high-strength bolts, one end bottom of each beam end reinforcing groove steel plate (4) close to the frame column (1) is integrally provided with a positioning vertical plate (4-2), and the positioning vertical plates (4-2) are connected and fixed with the variable cross-section reinforcing sections (1-1) through high-strength bolts, the four energy dissipation reinforcing parts (5) are respectively arranged at the included angle position of every two adjacent frame beams (3), each energy dissipation reinforcing part (5) comprises two arc-shaped shearing steel plates (5-1) with vertical angles, the lower ends of the two arc-shaped shearing steel plates (5-1) are connected into a whole through an angle steel part (5-2), the angle steel part (5-2) is fixedly connected with a corresponding angle of the variable cross-section reinforcing section (1-1) through a high-strength bolt, the upper ends of the two arc-shaped shearing steel plates (5-1) are respectively and vertically bent to be provided with an installation part (5-3), the installation part (5-3) and a corresponding positioning wing plate (4-1) are fixed into a whole through a high-strength bolt, a U-shaped buffer groove (5-4) is bent at the middle position of each arc-shaped shearing steel plate (5-1), and the openings of every two adjacent U-shaped buffer grooves, and a composite elastic block (6) is tightly fixed between the two through a fastening screw rod (7).
2. A frame beam column earthquake-resistant reinforcing structure according to claim 1, characterized in that: the energy dissipation reinforcing member (5) is an integrally formed soft steel component, and the central angle of the arc-shaped shearing steel plate (5-1) is 90 degrees.
3. A frame beam column earthquake-resistant reinforcing structure according to claim 1, characterized in that: the composite elastic block (6) is composed of rubber layers and steel sheets which are alternately overlapped.
4. A construction method of a frame beam column earthquake-proof reinforcing structure according to any one of claims 1 to 3, wherein: the construction method comprises the following steps:
the method comprises the following steps: firstly, supporting the connecting ends of four frame beams (3), crushing and removing concrete protective layers of frame columns (1) which are close to the lower parts of the four frame beams (3), binding reinforcing steel bars, erecting templates and pouring concrete to manufacture a variable cross-section reinforcing section (1-1);
step two: secondly, respectively surrounding four beam end reinforcing groove steel plates (4) at positions, close to the frame columns (1), of the four frame beams (3), and fixing the beam end reinforcing groove steel plates (4) with the floor (2) and the frame columns (1) through high-strength bolts, wherein hole positions corresponding to the energy dissipation reinforcing members (5) are reserved in the floor (2);
step three: then, the four energy dissipation reinforcing members (5) are respectively fixed with the floor slab (2) and the frame column (1) through high-strength bolts;
step four: and finally, a composite elastic block (6) is plugged between every two adjacent U-shaped buffer grooves (5-4), and is fixed through a fastening screw rod (7), and supports of connecting ends of the four frame beams (3) are removed.
CN201811414041.XA 2018-11-26 2018-11-26 Frame beam column anti-seismic reinforcing structure and construction method Active CN109537928B (en)

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CN111827704A (en) * 2019-04-17 2020-10-27 深圳市中固建筑加固技术有限公司 Reinforced concrete structure and reinforcing method
CN110273491B (en) * 2019-07-17 2021-02-02 金点石(北京)建筑设计咨询服务有限责任公司 Assembled inserting building body

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