CN112049460B - Independent shock-absorbing and reinforcement structural system for existing buildings - Google Patents
Independent shock-absorbing and reinforcement structural system for existing buildings Download PDFInfo
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- CN112049460B CN112049460B CN202011094891.3A CN202011094891A CN112049460B CN 112049460 B CN112049460 B CN 112049460B CN 202011094891 A CN202011094891 A CN 202011094891A CN 112049460 B CN112049460 B CN 112049460B
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- 230000002787 reinforcement Effects 0.000 title claims description 97
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 161
- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 230000035939 shock Effects 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/027—Preventive constructional measures against earthquake damage in existing buildings
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Abstract
The invention relates to an independent damping and reinforcing structure system for an existing building, which comprises an existing foundation, existing columns vertically fixed on the existing foundation and existing beams transversely fixed between two adjacent existing columns, wherein the independent damping and reinforcing structure comprises a reinforcing foundation which is attached to the outer side of the existing foundation and fixedly connected with the existing foundation, reinforcing columns vertically fixed on the reinforcing foundation, column connecting pieces which are connected with the reinforcing columns in a vertically adaptive movement adjusting mode, column connecting pieces fixedly connected with the existing columns, reinforcing beams transversely fixed between the adjacent two reinforcing columns, reinforcing beams attached to the outer side of the existing beams, beam connecting pieces which are connected with the reinforcing beams in a vertically movement adjusting mode, beam connecting pieces fixedly connected with the existing beams, and reinforcing supports which are obliquely supported between the upper adjacent reinforcing beam and the lower adjacent reinforcing beams, so that the reinforcing columns, the existing columns, the reinforcing beams and the existing beams can be vertically adaptive adjusted to damage, and the synchronous deformation preventing structure is released.
Description
Technical Field
The invention relates to the field of building construction, in particular to an independent damping and reinforcing structure system for an existing building.
Background
In the reinforcement and reconstruction construction of the existing building, the internal equipment is generally required to be moved, the original building decoration is partially removed, the working procedures of indoor wet operation and the like are more, the efficiency is low, and the influence on the existing building is larger.
In this regard, chinese patent CN210482632U discloses an externally attached framed steel support weakly connected seismic-resistant substructure comprising an existing main structure and an externally attached substructure, the existing main structure comprising an existing foundation, an existing frame beam and an existing frame column. The external additional substructure includes additional foundations, additional frame beams, additional frame posts, and additional diagonal braces. The first layer additional frame beam is connected with the existing frame beam of the first layer through a chemical anchor bolt, and the standard layer additional frame beam is connected with the existing frame beam of the standard layer through angle steel and high-strength bolts. However, the external additional substructure and the main structure are fixedly connected in the above manner, and the connection position is close to the beam column connection node position, so that the structure is easy to be damaged when the concrete structure of the main structure and the profile steel structure of the external additional substructure are not synchronous due to different materials.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an independent damping and reinforcing structure system for an existing building, and solves the problem that in the prior art, when the concrete structure of the existing main structure and the profile steel structure of an external additional substructure are asynchronous in vertical deformation due to different materials, the structure is easy to damage.
The technical scheme for achieving the purpose is as follows:
The invention provides an independent damping and reinforcing structure system for an existing building, which comprises an existing foundation, existing columns vertically fixed on the existing foundation and existing beams transversely fixed between two adjacent existing columns, wherein the independent damping and reinforcing structure system comprises:
the reinforcement foundation is adhered to the outer side of the existing foundation and fixedly connected with the existing foundation;
The reinforcement column is vertically fixed on the reinforcement foundation and is attached to the outer side of the existing column;
The column connecting piece is connected to the reinforcing column in a vertically adaptable moving and adjusting mode, and is fixedly connected with the existing column;
the reinforcing beams are transversely fixed between two adjacent reinforcing columns, and are attached to the outer sides of the existing beams;
a beam connector connected to the reinforcing beam in a vertically adaptable movement adjustment manner, the beam connector being fixedly connected to the existing beam, and
And the reinforcing support is obliquely supported between the upper adjacent reinforcing beam and the lower adjacent reinforcing beam.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The column connecting pieces are arranged on the reinforcing columns at intervals;
and a space is reserved between the column connecting piece and the connecting node of the reinforcing column and the reinforcing beam.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The column connecting piece is a sleeve sleeved on the reinforcing column, the sleeve is fixedly connected with the existing column, and vertical adaptability adjustment is realized by up-and-down movement of the sleeve relative to the reinforcing column.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The sleeve is provided with a pair of lug plates, the lug plates are clamped on two opposite sides of the existing column, and the lug plates are penetrated through the first anchor bolts and fixedly connected with the existing column.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The attaching surface of the reinforcing beam is provided with a vertical oblong hole;
The beam connecting piece is a bolt penetrating through the oblong hole, the oblong hole is penetrated through the bolt and fixedly connected with the existing beam, and the bolt moves up and down in the oblong hole to realize vertical adaptability adjustment.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The attaching face of the existing beam is attached with a fixing plate, the fixing plate is penetrated through the second anchor bolt and fixedly connected with the existing beam, and the fixing plate is fixedly connected with one end of the bolt.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The reinforcing beam and the attaching face of the existing beam are welded to form a plurality of welding seams which are arranged at intervals, and the distance between the first welding seam close to the reinforcing column and the reinforcing column is greater than or equal to a set distance.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
And a first damper is arranged in the reinforcing support.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The reinforcement support is a steel structure support;
The tops of the pair of reinforcement struts are connected through a mounting piece;
and a second damper is arranged between the mounting piece and the corresponding reinforcing beam.
A further improvement of the present invention for an independent shock absorbing reinforcement structure system for an existing building is that,
The reinforcing beam comprises a pair of reinforcing beam units which are transversely and symmetrically arranged and have a space formed between the reinforcing beam units, and a third damper is arranged between the pair of reinforcing beam units;
the reinforcing support is a steel structure support, and the tops of a pair of reinforcing supports are respectively fixed on corresponding reinforcing beam units.
The invention is used for the beneficial effects of the independent damping and reinforcing structure system of the existing building:
the invention adopts various measures for releasing and reinforcing the unsynchronized vertical deformation between the beam column and the existing beam column, and mainly comprises the following steps:
When the reinforcing beam and the existing beam are connected by bolts, a vertical oblong hole is arranged on the surface of the reinforcing beam and the existing beam.
When the reinforcing beam and the existing beam are connected by welding, the distance between the weld joint starting point close to the reinforcing column and the reinforcing column is greater than or equal to the distance which is set to be enough to release vertical deformation.
The reinforcement column is connected with the existing column by a column connector which can release vertical deformation.
Through the measures, the problem that the structure is damaged when the concrete structure of the existing main body structure and the profile steel structure of the external additional substructure are not synchronous due to different rigidities is solved, the problem that the reinforcement amount is large and the design is complex due to different allowable deformation capacities when the concrete structure of the main body structure and the external additional substructure are completely connected is solved, and the problem that the reinforcement is easy to be unstable outside due to insufficient drawknot between the reinforcement column and the existing column is also solved.
Drawings
FIG. 1 is an elevation view of a first embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention.
FIG. 2 is a plan view of the independent vibration absorbing reinforcement structure system of the present invention for an existing building.
Fig. 3 and 4 are schematic views of two embodiments of the reinforcement columns and the connection nodes of the existing columns of the independent shock absorbing reinforcement structure system for the existing building of the present invention.
Fig. 5 is a plan view corresponding to fig. 4.
FIG. 6 is a graph of the reinforcement beam and adjustable connection nodes of the existing beam for the independent shock absorbing reinforcement structure system of the existing building of the present invention.
FIG. 7 is a graph of the connection nodes of the reinforcement beam and the second position of the existing beam of the independent shock absorbing reinforcement structure system for the existing building of the present invention.
Fig. 8 is an elevation view of a second embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention.
Fig. 9 is an elevation view of a third embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention.
Fig. 10 is an elevation view of a fourth embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, there is shown an elevation view of a first embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention. FIG. 2 is a plan view of the independent vibration absorbing reinforcement structure system of the present invention for an existing building. Fig. 3 and 4 are schematic views of two embodiments of the reinforcement columns and the connection nodes of the existing columns of the independent shock absorbing reinforcement structure system for the existing building of the present invention. Fig. 5 is a plan view corresponding to fig. 4.
FIG. 6 is a graph of the reinforcement beam and adjustable connection nodes of the existing beam for the independent shock absorbing reinforcement structure system of the existing building of the present invention. As shown in fig. 1 to 6, the independent vibration-damping reinforcing structure system for an existing building of the present invention, the existing building 10 including an existing foundation, existing columns 11 vertically fixed to the existing foundation, and existing beams 12 laterally fixed between adjacent two of the existing columns 11, the independent vibration-damping reinforcing structure comprising:
A reinforcing foundation 20 attached to the outer side of the existing foundation and fixedly connected to the existing foundation;
the reinforcing column 30 is vertically fixed on the reinforcing foundation 20, and the reinforcing column 30 is attached to the outer side of the existing column 11;
The column connecting piece 60 is connected to the reinforcing column 30 in a vertically adaptable movable adjustment manner, and the column connecting piece 60 is fixedly connected with the existing column 11;
the reinforcing beams 40 are transversely fixed between two adjacent reinforcing columns 30, and the reinforcing beams 40 are attached to the outer sides of the existing beams 12;
a beam connector 70 connected to the reinforcing beam 40 in a vertically adaptable and movable manner, the beam connector 70 being fixedly secured to the existing beam 12, and
And reinforcing struts 50 diagonally supported between the upper and lower adjacent reinforcing beams 40.
Specifically, the existing building 10 is a concrete structure building to be reinforced, including an existing foundation, an existing column 11, and an existing beam 12 connected as a whole. The reinforcement foundation 20, the reinforcement columns 30 and the reinforcement beams 40 are steel frame structures integrally connected at positions corresponding to the existing foundation, the existing columns 11 and the existing beams 12, respectively.
In actual construction, if all parts of the two are completely and fixedly connected, when the concrete structure building and the steel frame structure are out of sync due to different materials, large additional shearing force is easily generated to damage the respective structures.
In the invention, the reinforcing column 30 is fixedly connected with the existing column 11 through the column connecting piece 60, so that an out-of-plane fulcrum is provided for the reinforcing column, the out-of-plane calculated length of the reinforcing column is reduced, the column connecting piece 60 can be vertically and adaptively moved and adjusted relative to the reinforcing column 30, and the reinforcing column 30 and the existing column 11 can be vertically and adaptively moved and adjusted to release asynchronous deformation and prevent the structure from being damaged.
The reinforcing beam 40 is fixedly connected with the existing beam 12 through the beam connecting piece 70, so that the existing building is supported, the beam connecting piece 70 can be vertically and adaptively moved and adjusted relative to the reinforcing beam 40, and accordingly the reinforcing beam 40 and the existing beam 12 can be vertically and adaptively moved and adjusted to release the vertically unsynchronized deformation and prevent the structure from being damaged.
The steel frame structure formed by the reinforced foundation 20, the reinforced columns 30 and the reinforced beams 40 is arranged on the outer side of the existing building 10 and is connected with each other, and is used for providing anti-side rigidity for the existing building 10 as an independent whole, and the dampers are arranged in the steel frame structure to provide damping energy consumption for the structure, so that the energy consumption capacity of the existing building is improved.
In addition, chinese patent CN211313471U discloses an earthquake-resistant reinforcing substructure with external additional framed steel supports for strong connection, which connects additional frame columns with existing frame columns, overcoming the drawbacks of the above-mentioned patent CN210482632U, but because the allowable deformability of the steel structure and the concrete structure are inconsistent, the advantage of strong vertical deformability of the steel structure column cannot be fully exerted in this way. The existing structure connected with the additional substructure is also part of the substructure which needs to be reinforced separately, which is a problem, as described in detail in technical regulations for energy dissipation and shock absorption reinforcement of buildings (T/CECS 0547-2018), which greatly increases the reinforcing workload. The steel member and the concrete member form a combined member, the calculation and analysis of the combined member are also troublesome, and the popularization and the utilization of the reinforcement method are not utilized.
According to the invention, the reinforcing column and the existing column are connected through the column connecting piece capable of releasing vertical deformation, and the out-of-plane pivot point is provided for the reinforcing column, so that the out-of-plane calculation length of the reinforcing column is reduced, and the problem of large calculation and analysis troublesome reinforcing quantity caused by the fact that the additional substructure column and the existing structure column are just connected into a whole in the prior art is solved. As a preferred embodiment of the independent damping and reinforcing structure system for the existing building, the column connecting pieces 70 are arranged on the reinforcing columns 30 at intervals, a space is reserved between the column connecting pieces 70 and the connecting nodes of the reinforcing columns 30 and the reinforcing beams 40, and the positions of the column connecting pieces 70 are far away from the connecting nodes, so that collision between the column connecting pieces 70 and the connecting nodes during adaptive adjustment is avoided.
As a preferred embodiment of the independent shock absorbing reinforcement structure system for the existing building, the column connecting piece 60 is a sleeve sleeved on the reinforcement column 30, the sleeve is fixedly connected with the existing column 11, and vertical adaptability adjustment is realized by the upward and downward movement of the sleeve relative to the reinforcement column 30.
In one embodiment, as shown in fig. 1 to 3, the reinforcing column 30 is disposed opposite to the existing column 11, and one side surface of the reinforcing column 30 is entirely attached to the outside of the existing column 11. The sleeve is sleeved on the reinforcing column 30, the sleeve can vertically move relative to the reinforcing column 30, when the reinforcing column 30 is a rectangular column, the sleeve is rectangular, and the shape and the size are adapted so as to be in limit connection, the reinforcing column 30 and the existing column 11 are in limit connection through the sleeve, and vertical adaptability moving adjustment can be performed.
A pair of ear plates 61 are formed on opposite sides of the sleeve, and the pair of ear plates 61 are clamped on opposite sides of the existing column 11, and are fixedly connected with the existing column 11 by penetrating the ear plates 61 through a first anchor bolt 62.
In this embodiment, since the cross-sectional width of the reinforcement post 30 is smaller than that of the existing post 11, the ear plates 61 include a first plate perpendicular to the attaching sleeve and a second plate perpendicular to the first plate, the first plates of a pair of ear plates 61 being respectively located on opposite sides of the attaching faces of the existing post 11 and the reinforcement post 30, and the second plates being attached to the existing post 11 so as to correspondingly clamp the existing post 11 to avoid lateral displacement.
This embodiment also includes a stiffening plate 63 secured perpendicularly to the first plate of the sleeve and ear plate 61, the connecting sleeve and ear plate 61 being reinforced by the stiffening plate 63, increasing the stiffness of the sleeve out of the plane of the independent shock absorbing reinforcement structure, thereby providing adequate out-of-plane support to the reinforcement post 30.
In another embodiment, shown in connection with fig. 1-5, a reinforcement post 30d is provided at a corner of the outside of the existing post 11d, and a side portion of the reinforcement post 30d is attached to the outside of the existing post 11 d.
The sleeve is sleeved on the reinforcing column 30d, the sleeve can vertically move relative to the reinforcing column 30d, a pair of lug plates 61d are formed at the corners of the sleeve, the lug plates 61d are clamped on two sides of the existing column 11d, and the lug plates 61d are penetrated through the first anchor bolts 62d and fixedly connected with the existing column 11 d.
This embodiment also includes a stiffening plate 63d secured perpendicularly to the first plate of the sleeve and ear plate 61d, the connecting sleeve and ear plate 61d being reinforced by the stiffening plate 63d to increase the stiffness of the sleeve out of the plane of the independent shock absorbing reinforcement structure, thereby providing adequate out-of-plane support to the reinforcement post 30 d.
As a preferred embodiment of the independent damping and reinforcing structure system for the existing building, the attaching face of the reinforcing beam 40 is provided with a vertical oblong hole, the beam connecting piece 70 is a bolt penetrating through the oblong hole, the oblong hole is penetrated by the bolt to be fixedly connected with the existing beam 12, and the bolt moves up and down in the oblong hole to realize vertical adaptability adjustment.
Referring to fig. 6, the oblong hole has a certain length in the vertical direction, and the bolt can move up and down in the oblong hole, so that the existing beam 12 fixedly connected with the bolt can be vertically fine-tuned relative to the reinforcing beam 40.
As a preferred embodiment of the independent damping and reinforcing structure system for the existing building, the attaching face of the existing beam 12 is attached with the fixing plate 71, the fixing plate 71 is penetrated through the second anchor bolt 72 to be fixedly connected with the existing beam 12, and the fixing plate 71 is fixedly connected with one end of a bolt.
The second anchor bolt 72 is fixed by a nut and is inserted through the fixing plate 71 and the existing beam 12 and is attached to the backing plate 73 of the existing beam 12. The reinforcing beam 40 and the fixing plate 71 are attached, the attaching surface is smooth, the relative movement is convenient, and the damage caused by the asynchronous vertical deformation of the reinforcing beam 40 and the existing beam 12 is avoided, so that only horizontal force is transmitted between the reinforcing beam 40 and the existing beam 12.
As a preferred embodiment of the independent vibration reducing and reinforcing structure system for an existing building according to the present invention, reference is made to fig. 6, which is a graph showing the connection nodes between the reinforcing beam of the independent vibration reducing and reinforcing structure system for an existing building according to the present invention and the second position of the existing beam. As shown in fig. 1 to 6, the facing surfaces of the reinforcing beam 40 and the existing beam 12 are welded to form a plurality of welds arranged at intervals, and the distance between the first weld 41 adjacent to the existing column 11 and the reinforcing column 30 is equal to or greater than a predetermined distance.
The distance between the first weld and the reinforcement post 30 is large, and the set distance needs to be sufficient to release the vertical deformation, and the difference in vertical deformation between the reinforcement post 30 and the existing post 11 is released by the bending deformation of the reinforcement beam 40 and the existing beam 12 within the above distance, so as to avoid structural damage caused by excessive shearing force generated at the support of the reinforcement beam 40 and the existing beam 12.
By releasing the vertical deformation difference between the reinforcement columns 30 and the existing columns 11, the existing building weakly connected with the reinforcement structure does not need to be subjected to special checking and reinforcement as a substructure requirement.
Specifically, the reinforcement beam 40 and the first weld of the existing beam 12, which is closer to the existing column 11, are farther from the reinforcement column 30, and the distance between the first weld and the reinforcement column 30 is generally equal to or greater than a set distance, which is generally 4 to 5 times the cross section of the reinforcement column 30. In this embodiment, the distance is set to 1000mm. The reinforcing beam 40 may take the form of a section with weaker vertical bending stiffness (e.g., an H-section with a vertically placed flange) without changing the cross-sectional area between the first weld near the reinforcing post 30 and the reinforcing post 30 to further increase its ability to release vertical deformation.
As a preferred embodiment of the independent shock absorbing reinforcement structure system for an existing building of the present invention, a first damper is installed in a reinforcement stay 50 as shown in fig. 1. The two reinforcing struts 50 are symmetrically arranged and the tops are fixedly connected with the corresponding reinforcing beams 40 through mounting pieces 51. In this embodiment, the reinforcement brace 50 has two functions, on one hand, the first damper provides damping energy consumption for the reinforcement structure, and improves the energy consumption capability of the structure. On the other hand, the first damper is obliquely supported between the upper and lower adjacent reinforcing beams, so that the integral supporting strength and stability of the steel structure are enhanced.
The reinforcement brace 50 may be a single diagonal brace or a pair of diagonal braces disposed symmetrically with respect to each other.
As a preferred embodiment of the independent vibration reduction and reinforcement structure system for an existing building of the present invention, reference is made to fig. 8, which is an elevation view of a second example of the independent vibration reduction and reinforcement structure system for an existing building of the present invention. Referring to fig. 8, when the reinforcing beams and the existing beams are connected by means of the slotted holes and bolts, the reinforcing struts 50a are steel structural struts, the tops of the pair of reinforcing struts 50a are connected by the mounting members 51a, and the second dampers 52a are mounted between the mounting members 51a and the corresponding reinforcing beams 40a to provide damping energy consumption for the reinforcing structure and improve the energy consumption capacity of the structure.
In the present embodiment, the reinforcement stay 50a and the second damper 52a are different structures. The pair of reinforcing struts 50a are symmetrically arranged with respect to the vertical center line of the reinforcing structure and the top is fixedly connected by the mounting piece 51a, so that the structure is stable.
Referring to fig. 9, a third embodiment of the independent vibration absorbing reinforcement structure system for an existing building of the present invention is shown in elevation. Referring to fig. 9, when the reinforcing beams and the existing beams are connected in the form of circular holes and bolts, the reinforcing struts 50b are steel structural struts, the tops of the pair of reinforcing struts 50b are connected through mounting pieces 51b, the mounting pieces 51b are fixedly connected with the reinforcing beams 40b corresponding to the upper parts, third dampers 52b are respectively mounted on two opposite sides of the mounting pieces 51b, the other ends of the third dampers 52b are fixedly connected with the reinforcing beams 40b corresponding to the upper parts, damping energy consumption is provided for the reinforcing structures through the third dampers 52b, and the energy consumption capacity of the structures is improved.
In the present embodiment, the reinforcement stay 50b and the third damper 52b are different structures. The pair of reinforcing struts 50b are symmetrically arranged with respect to the vertical center line of the reinforcing structure and the top is fixedly connected by the mounting piece 51b, so that the structure is stable.
As a preferred embodiment of the independent vibration reduction and reinforcement structure system for an existing building of the present invention, reference is made to fig. 10, which is an elevation view of a fourth example of the independent vibration reduction and reinforcement structure system for an existing building of the present invention. Referring to fig. 10, when the reinforcing beam and the existing beam are coupled in the form of a circular hole and a bolt, the reinforcing beam 40c includes a pair of reinforcing beam units disposed symmetrically in a lateral direction with a space formed therebetween, a third damper 51c is installed in the middle of the pair of reinforcing beam units, the reinforcing struts 50c are steel structural struts, and the tops of the pair of reinforcing struts 50c are respectively fixed to the corresponding reinforcing beam units.
Specifically, the reinforcement beam unit, the reinforcement struts 50c and the corresponding reinforcement columns 30c are connected into a triangular structure, and stability is good. The tops of the two triangle structures which are bilaterally symmetrical are connected by the third damper 40 c. This is the case only for the reinforcement of the beam and the connection between the beams, i.e. in the form of oblong holes and bolts.
The independent damping and reinforcing structure system for the existing building has the beneficial effects that:
According to the invention, the reinforcement column is fixedly connected with the existing column through the column connecting piece, so that an out-of-plane fulcrum is provided for the reinforcement column, the out-of-plane calculated length of the reinforcement column is reduced, the column connecting piece can be vertically adaptively moved and adjusted relative to the reinforcement column, and the reinforcement column and the existing column can be vertically adaptively moved and adjusted so as to release asynchronous deformation and prevent the structure from being damaged. The reinforcing beam is fixedly connected with the existing beam through the beam connecting piece, so that the existing building is supported, the beam connecting piece can be vertically and adaptively moved and adjusted relative to the reinforcing beam, and accordingly the reinforcing beam and the existing beam can be vertically and adaptively moved and adjusted to release vertical unsynchronized deformation and prevent the structure from being damaged.
The present invention has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (8)
1. An independent shock absorbing reinforcement structure system for an existing building, the existing building including an existing foundation, existing columns vertically fixed to the existing foundation, and existing beams laterally fixed between two adjacent existing columns, the independent shock absorbing reinforcement structure system comprising:
the reinforcement foundation is adhered to the outer side of the existing foundation and fixedly connected with the existing foundation;
The reinforcement column is vertically fixed on the reinforcement foundation and is attached to the outer side of the existing column;
The column connecting piece is connected to the reinforcing column in a vertically adaptable moving and adjusting mode, and is fixedly connected with the existing column;
the column connecting piece is a sleeve sleeved on the reinforcing column, the sleeve is fixedly connected with the existing column, and vertical adaptive adjustment is realized by up-and-down movement of the sleeve relative to the reinforcing column;
the reinforcing beams are transversely fixed between two adjacent reinforcing columns, and are attached to the outer sides of the existing beams;
a beam connector connected to the reinforcing beam in a vertically adaptable movement adjustment manner, the beam connector being fixedly connected to the existing beam, and
Reinforcing struts obliquely supported between the upper adjacent reinforcing beams and the lower adjacent reinforcing beams;
The attaching surface of the reinforcing beam is provided with a vertical oblong hole;
The beam connecting piece is a bolt penetrating through the oblong hole, the oblong hole is penetrated through the bolt and fixedly connected with the existing beam, and the bolt moves up and down in the oblong hole to realize vertical adaptability adjustment.
2. The self-contained shock absorbing reinforcement structure system for an existing building of claim 1,
The column connecting pieces are arranged on the reinforcing columns at intervals;
and a space is reserved between the column connecting piece and the connecting node of the reinforcing column and the reinforcing beam.
3. The independent vibration absorbing reinforcement structure for an existing building according to claim 1, wherein the sleeve is formed with a pair of ear plates, a pair of the ear plates being sandwiched between opposite sides of the existing column, and being fastened to the existing column by penetrating the ear plates through a first anchor bolt.
4. The independent vibration-damping reinforcing structure system for an existing building according to claim 1, wherein a fixing plate is attached to the attaching face of the existing beam, the fixing plate is fixedly connected with the existing beam by penetrating through a second anchor bolt, and the fixing plate is fixedly connected with one end of the bolt.
5. The independent vibration-damping reinforcing structure system for an existing building according to claim 1, wherein the reinforcing beam and the facing surface of the existing beam are formed with a plurality of welds arranged at intervals by welding, and a distance between a first weld adjacent to the reinforcing column and the reinforcing column is equal to or greater than a set distance.
6. The self-contained shock absorbing reinforcement structure system for an existing building of claim 1, wherein a first damper is installed within the reinforcement strut.
7. The self-contained shock absorbing reinforcement structure system for an existing building of claim 1, wherein the reinforcement struts are steel structural struts;
The tops of the pair of reinforcement struts are connected through a mounting piece;
and a second damper is arranged between the mounting piece and the corresponding reinforcing beam.
8. The independent vibration-damping reinforcing structure system for an existing building according to claim 1, wherein the reinforcing beam includes a pair of reinforcing beam units which are laterally symmetrically disposed with a space formed therebetween, and a third damper is installed in the middle of the pair of reinforcing beam units;
the reinforcing support is a steel structure support, and the tops of a pair of reinforcing supports are respectively fixed on corresponding reinforcing beam units.
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| CN201865213U (en) * | 2010-06-18 | 2011-06-15 | 北京工业大学 | Embedded shock-absorbing steel frame for seismic strengthening |
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