CN114673376A - Column diameter expanding device for enhancing shock absorption of combined rubber pad and mounting process - Google Patents
Column diameter expanding device for enhancing shock absorption of combined rubber pad and mounting process Download PDFInfo
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- CN114673376A CN114673376A CN202210356214.7A CN202210356214A CN114673376A CN 114673376 A CN114673376 A CN 114673376A CN 202210356214 A CN202210356214 A CN 202210356214A CN 114673376 A CN114673376 A CN 114673376A
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- reinforcing member
- column
- steel hoop
- rubber pad
- reinforcing
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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
- E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
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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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- 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
- E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a column diameter expanding device for enhancing shock absorption of a combined rubber pad and an installation process, which comprises the steps of arranging a steel hoop and the steel hoop at the column base of a wooden column of an ancient building, wherein the steel hoop and the steel hoop are connected through a bolt, the outer sides of the steel hoop and the steel hoop are provided with a reinforcing member and a reinforcing member, the reinforcing member and the reinforcing member are two annular columns with semicircular sections, the inner walls of the reinforcing member and the reinforcing member are respectively provided with an annular groove and an annular groove, the grooves are used for buckling and pre-tightening the steel hoop on the wooden column, the inner wall of the reinforcing member is pasted with a thin steel sheet, and the semicircular high-elasticity rubber pad and the high-elasticity rubber pad are respectively pasted at the bottoms of the reinforcing member and the reinforcing member by using rubber glue. The invention effectively enhances the anti-seismic performance of the wood column by enlarging the column diameter of the wood column, and the rubber pad at the bottom of the column foot dissipates part of seismic energy through elastic deformation in the anti-seismic swinging process of the wood column, thereby not only improving the energy consumption capability of a building, but also avoiding the damage of the core wood column caused by an earthquake and the transformation of wood deformation at the bottom of the wood column into rubber deformation.
Description
Technical Field
The invention belongs to the technical field of historic building reinforcement, and particularly relates to a column diameter expanding device for enhancing shock absorption of a combined rubber pad and an installation process.
Background
The historic building timber structure resists the destruction of external load with its unique structural style, and wherein the timber pillar accepts building superstructure and ground, is ancient building antidetonation's focus research object. Due to the characteristics of mortise and tenon joints, the wood columns dissipate seismic energy by means of swinging and sliding friction, and the safety and reliability of the whole building are effectively guaranteed. Therefore, from the mechanical point of view, the diameter of the wood column directly affects the earthquake resistance of the building, and the material characteristics of the wood also limit the energy consumption capability of the wood structure building.
The existing wood column reinforcing mode rarely strengthens the seismic performance of the wood column from the structural angle, and the reinforcing mode which is similar to a grooving, bar planting and the like and improves the bearing capacity of the wood column can damage the original wood column of the ancient building and does not meet the repairing and reinforcing principle of minimum intervention.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a column diameter expanding device for enhancing shock absorption by a combined rubber pad and an installation process, the column diameter of a wood column is expanded to effectively enhance the anti-seismic performance of the wood column, and the rubber pad at the bottom of a column base dissipates part of seismic energy through elastic deformation in the anti-seismic swinging process of the wood column, so that the energy consumption capability of a building is improved, the damage of an earthquake to a core wood column can be avoided, and the deformation of wood at the bottom of the wood column is converted into the deformation of rubber.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a shock-absorbing column footpath of combination rubber pad reinforcing enlarges device, includes and sets up semicircular steel hoop 2 and semicircular steel hoop 3 in 1 column base department of ancient building post, steel hoop 2 passes through bolted connection with steel hoop 3, and steel hoop 2 is provided with reinforcement 4 and reinforcement 5 with 3 outsides of steel hoop, and reinforcement 4 and reinforcement 5 are two cross-sections for semicircular annular cylinder, set up annular groove 6 and annular groove 7 respectively at reinforcement 4 and reinforcement 5's inner wall, and annular groove 6 is used for the lock pretension at post 1 steel hoop 2, and annular groove 7 is used for the lock steel hoop 3 pastes the thin steel sheet 8 of 0.2mm-0.5mm thickness at the reinforcement inner wall, and semicircular high-elastic rubber pad 9 and high-elastic rubber pad 10 are glued respectively in the bottom at reinforcement 4 and reinforcement 5 with ergo5500 rubber glue.
The reinforcing member 4 and the reinforcing member 5 are tightly closed at the column base 1 by applying pretightening force through a flexible steel belt, and structural glue is coated on the connecting surface to form a whole.
The reinforcing member 4 is the same as the reinforcing member 5 in shape, the bottom surface of the reinforcing member is flush with the bottom surface of the wood column 1, the height of the reinforcing member is about 200mm-300mm, the concave-convex tenon-and-mortise positions at the joint of the reinforcing member are trisected according to the height of the reinforcing member.
The thin steel sheet 8 is attached to the non-groove part of the inner wall of the reinforcing member and used for limiting radial cracking of the reinforcing member.
The cross section shapes of the high-elastic rubber pad 9 and the high-elastic rubber pad 10 are the same as that of the reinforcing piece 4, and the height of the rubber pad is not less than 10 mm.
The steel hoop 2 and the steel hoop 3 are two semicircular rings with the same shape, the length of the inner circumference after being spliced into a whole is less than about 2mm of the circumference of the wood column, the section of the steel hoop is in an inverted L shape, the length of the extending flange is not less than 1/3 of the radial thickness of the reinforcing piece 4, and the width of the extending flange is less than half of the whole width of the steel hoop.
The installation process of the column diameter expanding device for enhancing the shock absorption of the combined rubber pad comprises the following steps;
1) cleaning foreign matters on the outer surface of the wood column 1 where the reinforcing member needs to be installed, and polishing and flattening;
2) fixing the steel hoop 2 and the steel hoop 3 at the positioning position of the wood column, and screwing a connecting bolt by using a spanner;
3) respectively sticking the high-elasticity rubber pad 9 and the high-elasticity rubber pad 10 on the bottoms of the reinforcing member 4 and the reinforcing member 5 by using ergo5500 rubber glue, clamping the rubber pads and the reinforcing members by using a woodworking clamp, applying pressure on the whole section, placing for 48 hours, and removing the clamp after the rubber pads and the reinforcing members are completely solidified;
4) sticking a steel sheet 8 with the thickness of 0.2mm-0.5mm on the inner walls of the reinforcing member 4 and the reinforcing member 5 by using universal glue;
5) after epoxy resin glue is coated on the mortise-tenon joint surfaces of the reinforcing member 4 and the reinforcing member 5, a flexible steel strip is used for applying pressure to the reinforcing member and the reinforcing member, and the integrity of the reinforcing member and the wood column 1 is improved through pretightening force;
6) and (5) waiting for more than 10 hours, and removing the flexible steel belt after the epoxy resin adhesive is completely cured.
The invention has the beneficial effects that:
the invention enlarges the column diameter of the wood column, and the wood column can provide larger bending moment resistance in the swinging process, and has stronger self-resetting capability.
The reinforcing method has the characteristic of being replaceable, and the reinforcing device is easy to disassemble and replace because the reinforcing member and the wood column do not depend on other fixing measures and only depend on pretightening force, and the reinforcing members with different column diameters and heights can be selected according to actual requirements. Meanwhile, the interference on the original ancient building is reduced to the maximum extent only by the connection of the pretightening force, and the ancient building repairing and reinforcing principle is met.
The reinforcing method uses the high-elasticity rubber to improve the energy consumption capability of the wood column, and reduces the damage to the wood column caused by swinging extrusion to a certain extent.
Drawings
Fig. 1 is an installation schematic diagram of a column diameter enlarging device for enhancing shock absorption of a combined rubber pad provided by the invention.
Fig. 2 is a detailed view of the column base of the wood column.
Fig. 3 is a detailed view of the steel band 2 and the steel band 3.
Fig. 4 is a detailed view of the stiffener 4, together with the stiffener 5.
Reference numerals: 1 is a wood column; 2 is a steel hoop; 3 is a steel hoop; 4 is a reinforcing member; 5 is a reinforcing member; 6 is an annular groove; 7 is an annular groove; 8 is a thin steel sheet; 9 is a high-elastic rubber pad; 10 is a high-elastic rubber pad.
Detailed Description
The present invention will be described in further detail with reference to examples.
Referring to fig. 1 to 4, a shock-absorbing column diameter expanding device is strengthened to combined rubber pad includes and sets up steel hoop 2 and steel hoop 3 in 1 column base department of ancient building post, steel hoop 2 passes through bolted connection with steel hoop 3, and steel hoop 2 is provided with reinforcement 4 and reinforcement 5 with the 3 outsides of steel hoop, and reinforcement 4 and reinforcement 5 are two cross-sections for semicircular annular cylinder, offers annular groove 6 and annular groove 7 respectively at reinforcement 4 and the inner wall of reinforcement 5, and the recess is used for the steel hoop of lock pretension on post 1.
The reinforcing member 4 and the reinforcing member 5 are tightly closed at the column base 1 by applying pretightening force through a flexible steel belt, and structural glue is coated on the connecting surface to form a whole.
The reinforcing member 4 is the same with the reinforcing member 5 shape, bottom surface and 1 bottom surface parallel and level of post, and the reinforcing member height is about 200mm-300mm, "unsmooth" shape tenon fourth of the twelve earthly branches of reinforcing member junction, and the size carries out the trisection according to the reinforcing member height, and the trisection can let the tenon and the mortise mouth of junction on average bear the curved shear stress that the post produced, avoids taking place local shear failure.
A thin steel sheet 8 with the thickness of 0.2mm-0.5mm is pasted on the inner wall of the reinforcing part, and a semicircular high-elastic rubber pad 9 and a semicircular high-elastic rubber pad 10 are respectively pasted at the bottoms of the reinforcing part 4 and the reinforcing part 5 by using ergo5500 rubber glue.
The thin steel sheet 8 is attached to the non-groove part of the inner wall of the reinforcing member and used for limiting radial cracking of the reinforcing member.
High-elastic rubber pad 9 and high-elastic rubber pad 10 cross-sectional shape the same with reinforcement 4, the rubber pad height is not less than 10mm, because the high elastic energy of rubber material, add the rubber pad in the reinforcement bottom surface and can strengthen the power consumption ability of post by a wide margin, improve the holistic anti-seismic performance of ancient building.
The steel hoop 2 and the steel hoop 3 are two semicircular rings with the same shape, the length of the inner circumference after the two semicircular rings are spliced into a whole is less than about 2mm of the circumference of a wood column, the section of the steel hoop is in an inverted L shape, the length of the outward extending flange is not less than 1/3 of the radial thickness of the reinforcing piece 4, the width of the outward extending flange is less than half of the whole width of the steel hoop, and enough space is reserved for bolts on the steel hoop, so that the installation is convenient.
The installation schematic diagram of the column diameter expanding device for enhancing shock absorption of the combined rubber pad comprises the following steps:
1) cleaning foreign matters on the outer surface of the wood column 1 where the reinforcing member needs to be installed, and polishing and flattening;
2) fixing the steel hoop 2 and the steel hoop 3 at the positioning position of the wood column, and screwing a connecting bolt by using a spanner;
3) respectively sticking the high-elasticity rubber pad 9 and the high-elasticity rubber pad 10 on the bottoms of the reinforcing member 4 and the reinforcing member 5 by using ergo5500 rubber glue, clamping the rubber pads and the reinforcing members by using a woodworking clamp, applying pressure on the whole section, placing for 48 hours, and removing the clamp after the rubber pads and the reinforcing members are completely solidified;
4) adhering 0.2mm-0.5mm steel sheets on the inner walls of the reinforcing member 4 and the reinforcing member 5 by using universal glue;
5) after epoxy resin glue is coated on the mortise-tenon joint surfaces of the reinforcing member 4 and the reinforcing member 5, a flexible steel strip is used for applying pressure to the reinforcing member and the reinforcing member, and the integrity of the reinforcing member and the wood column 1 is improved through pretightening force;
6) and (5) waiting for more than 10 hours, and removing the flexible steel belt after the epoxy resin adhesive is completely cured.
Claims (8)
1. A column diameter expanding device for reinforcing and damping combined rubber pads is characterized by comprising a semicircular steel hoop (2) and a semicircular steel hoop (3) which are arranged at the column base of a wooden column (1) of an ancient building, wherein the steel hoop (2) is connected with the steel hoop (3) through a bolt, reinforcing members (4) and (5) are arranged on the outer sides of the steel hoop (2) and the steel hoop (3), the reinforcing members (4) and (5) are two annular columns with semicircular sections, annular grooves (6) and annular grooves (7) are respectively formed in the inner walls of the reinforcing members (4) and (5), the annular grooves (6) are used for buckling and pre-tightening the steel hoop (2) on the wooden column (1), and the annular grooves (7) are used for buckling the steel hoop (3);
a thin steel sheet (8) with the thickness of 0.2mm-0.5mm is pasted on the inner wall of the reinforcing piece, and a semicircular high-elastic rubber pad (9) and a high-elastic rubber pad (10) are respectively pasted at the bottoms of the reinforcing piece (4) and the reinforcing piece (5) by ergo5500 rubber glue.
2. A column diameter expanding device for enhancing shock absorption of a combined rubber pad as defined in claim 1, wherein the reinforcing member (4) and the reinforcing member (5) are fastened to the column base (1) by applying a pre-tightening force through a flexible steel belt, and structural adhesive is applied to the joint surface to form a whole.
3. A column diameter enlarging device for enhancing shock absorption of a composite rubber gasket as defined in claim 1, wherein said reinforcing member (4) has the same shape as the reinforcing member (5), the bottom surface is flush with the bottom surface of the wood column (1), the height of the reinforcing member is about 200mm-300mm, and the size of the "concavo-convex" shaped tenon-mortise work at the joint of the reinforcing member is trisected according to the height of the reinforcing member.
4. A column diameter expanding device for enhancing shock absorption of a combined rubber pad as defined in claim 1, wherein the annular groove (6) and the annular groove (7) are respectively formed on the inner walls of the reinforcing member (4) and the reinforcing member (5) and form-fit with the steel hoop (2) and the steel hoop (3), the width of the groove is less than 1/3 of the overall height of the reinforcing member, and the distance between the groove and the upper surface of the reinforcing member is more than half of the width of the groove.
5. A column diameter enlarging device for enhancing shock absorption of a combined rubber pad as defined in claim 1, wherein said thin steel sheet (8) is attached to the non-recessed portion of the inner wall of the reinforcing member for restricting radial cracks of the reinforcing member.
6. A device for enlarging the diameter of a column of a combined rubber pad with increased shock absorption according to claim 5, wherein the cross-sectional shapes of the high-elasticity rubber pad (9) and the high-elasticity rubber pad (10) are the same as the cross-sectional shape of the reinforcing member (4), and the height of the rubber pad is not less than 10 mm.
7. A column diameter enlarging device for enhancing shock absorption of a combined rubber pad as defined in claim 1, wherein the steel hoop (2) and the steel hoop (3) are two half rings with the same shape, the length of the inner circumference after being assembled together is less than about 2mm of the circumference of the wooden column, the cross-sectional shape of the steel hoop is an inverted L shape, wherein the length of the outward flange is not less than 1/3 of the radial thickness of the reinforcing member (4), and the width is less than half of the whole width of the steel hoop.
8. The process for installing the column diameter expanding device with the combination rubber gasket for enhancing the shock absorption of any one of claims 1 to 7, which comprises the following steps;
1) cleaning foreign matters on the outer surface of the wood column (1) where the reinforcing piece needs to be installed, and polishing and flattening;
2) fixing the steel hoop (2) and the steel hoop (3) at the positioning position of the wood column, and screwing a connecting bolt by using a wrench;
3) respectively sticking the high-elasticity rubber pad (9) and the high-elasticity rubber pad (10) to the bottoms of the reinforcing member (4) and the reinforcing member (5) by using ergo5500 rubber glue, clamping the rubber pads and the reinforcing member by using a woodworking clamp, applying pressure to the whole section, placing for 48 hours, and removing the clamp after the rubber pads and the reinforcing member are completely solidified;
4) adhering 0.2mm-0.5mm steel sheets (8) on the inner walls of the reinforcing member (4) and the reinforcing member (5) by using universal glue;
5) after epoxy resin glue is coated on the mortise-tenon joint surfaces of the reinforcing member (4) and the reinforcing member (5), a flexible steel strip is used for applying pressure to the reinforcing member and the reinforcing member, and the integrity of the reinforcing member and the wood column (1) is improved through pretightening force;
6) and (5) waiting for more than 10 hours, and removing the flexible steel belt after the epoxy resin adhesive is completely cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356214.7A CN114673376A (en) | 2022-04-06 | 2022-04-06 | Column diameter expanding device for enhancing shock absorption of combined rubber pad and mounting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356214.7A CN114673376A (en) | 2022-04-06 | 2022-04-06 | Column diameter expanding device for enhancing shock absorption of combined rubber pad and mounting process |
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| CN114673376A true CN114673376A (en) | 2022-06-28 |
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| CN202210356214.7A Pending CN114673376A (en) | 2022-04-06 | 2022-04-06 | Column diameter expanding device for enhancing shock absorption of combined rubber pad and mounting process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220178158A1 (en) * | 2020-12-07 | 2022-06-09 | Fuzhou University | Device and method for reinforcing round section wood beam by combination of prestressed frp sheet and high strength steel wire rope |
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| US11674323B2 (en) * | 2020-12-07 | 2023-06-13 | Fuzhou University | Device and method for reinforcing round section wood beam by combination of prestressed FRP sheet and high strength steel wire rope |
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