CN114046080B - Cold-formed steel shear wall with self-resetting energy-consuming support - Google Patents
Cold-formed steel shear wall with self-resetting energy-consuming support Download PDFInfo
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- CN114046080B CN114046080B CN202111341926.3A CN202111341926A CN114046080B CN 114046080 B CN114046080 B CN 114046080B CN 202111341926 A CN202111341926 A CN 202111341926A CN 114046080 B CN114046080 B CN 114046080B
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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
- 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
- E04H9/0237—Structural braces with damping devices
Abstract
The invention discloses a cold-formed steel shear wall of a self-resetting energy-consuming support, which comprises a wall keel, a wall panel and a self-resetting energy-consuming support unit; the self-resetting energy consumption supporting unit comprises a first supporting piece and a second supporting piece, wherein the first end of the first supporting piece is connected with the outer groove, the first end of the second supporting piece is connected with the friction piece, the friction piece slides and rubs on the inner wall of the outer groove, a spring group connected in series along the sliding direction is arranged between the two sides of the friction piece and the outer groove, and the second ends of the first supporting piece and the second supporting piece are respectively connected with the wall keel. The invention applies the energy-consuming brace to the assembled cold-formed steel shear wall, has light weight and high strength, can realize factory standardized production, is simple to construct and install, has high performance and economy, and has wide market prospect in the field of middle and high-rise buildings.
Description
Technical Field
The invention relates to a cold-formed steel shear wall body of a self-resetting energy-consuming support, and belongs to the technical field of structural engineering. In particular to a corrugated steel plate cladding cold-formed steel shear wall with multiple functions of self-resetting and energy consumption supporting.
Background
The cold-formed steel structure system is a novel structure system developed over thirty years at present, is widely applied abroad, and has the advantages of light weight, high strength, good shock resistance, good heat preservation performance, environment friendliness and the like compared with the traditional hot rolled steel structure and reinforced concrete structure. In China, the steel yield is stable at the first place in the world, but the steel consumption is far lower than that of developed countries in the construction industry, and meanwhile, the building department clearly indicates in thirteen-five assembled building action scheme, and the proportion of the assembled buildings in the whole country reaches more than 15% of that of newly built buildings by 2022. Therefore, the assembled cold-formed steel structure house is developed, the problem of surplus steel productivity in China can be effectively solved, and the transformation of the house structural form can be promoted.
Meanwhile, on the premise of national conditions of more people and less land in China, the main trend of the cold-formed steel structure system is to develop from a low-rise building system to a medium-rise building system. The cold-formed steel shear wall is an important structural unit of the structural system for resisting vertical and horizontal loads, and mainly comprises plywood, an OSB board and a flat steel plate aiming at the type of wall panels at present, and the cold-formed steel shear wall formed by combining the three panels and wall keels is not suitable for being used in a middle-high-layer cold-formed steel system in view of bearing capacity. The shear bearing capacity of the corrugated steel plate cladding wall body is obviously higher than that of the wall bodies of the first three panel types, the wall body is a preferred scheme for the application of the cold-formed steel structure in the field of medium-high-rise buildings, and however, the ductility and the earthquake resistance of the wall body are relatively poor.
Therefore, the self-resetting energy-consumption supporting device is added into the wall body, so that the wall body not only ensures high bearing capacity, but also has good anti-seismic and shock-absorbing properties, and the corrugated steel plate clad cold-formed steel shear wall body with the self-resetting energy-consumption supporting device has very wide application prospect in the field of middle and high-rise buildings.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the cold-formed steel shear wall with the self-resetting energy-consuming support, which has the advantages of light weight, high strength, realization of factory standardized production, simple construction and installation, high performance and economy, and self-resetting and damping energy-consuming functions, and can replace the traditional cold-formed steel shear wall, and most importantly, the wall can promote the popularization and application of the cold-formed steel structure in the field of medium-high-rise buildings.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a cold-formed steel shear wall of a self-resetting energy-consuming support comprises a wall keel, a wall panel connected to at least one side of the wall keel, and a self-resetting energy-consuming support unit arranged in the wall keel;
the self-resetting energy consumption supporting unit comprises a first supporting piece and a second supporting piece, wherein the first end of the first supporting piece is connected to the outer groove, the first end of the second supporting piece is connected to the friction piece, the friction piece slides and rubs against the inner wall of the outer groove, spring groups connected in series along the sliding direction are arranged between the two sides of the friction piece and the outer groove, and the second ends of the first supporting piece and the second supporting piece are respectively connected with the wall keel.
Preferably, the wall keel comprises side stand columns on the left side and the right side, guide rails on the upper end and the lower end and a middle stand column, wherein the two ends of the guide rails are connected with the side stand columns, and the two ends of the middle stand column are connected with the guide rails.
Preferably, a group of self-resetting energy consumption supporting units are respectively connected between two pairs of opposite angles of the upright posts on two sides of the wall keel, and an opening for the two groups of self-resetting energy consumption supporting units to cross is formed in the middle position of the middle upright post.
Preferably, a group of self-resetting energy consumption supporting units are respectively connected between the bottom ends of the side stand columns at the two sides of the wall keel and the top ends of the middle stand columns.
Preferably, the two ends of the self-resetting energy consumption supporting unit are respectively connected with the corresponding corner parts of the wall keels by adopting anti-pulling pieces.
Preferably, the anti-pulling piece is internally fixed with a clamping groove screw rod, and the second ends of the first supporting piece and the second supporting piece are respectively connected with the clamping groove screw rod in a rotating way through bearings.
Preferably, the anti-pulling member is connected with a shear bolt, and holes for the shear bolt to pass through are formed in the guide rail on the upper and lower sides of the anti-pulling member and the corresponding positions.
Preferably, the friction piece comprises H-shaped steel and friction plates, the two friction plates are respectively connected between the outer sides of two flanges of the H-shaped steel and two groove walls of the outer groove by adopting high-strength bolts, bolt slide ways are arranged on the groove walls along the sliding direction of the friction piece, and the high-strength bolts are connected in the bolt slide ways.
Preferably, the first supporting piece and the second supporting piece are threaded round steel with a basket bolt at the second end, the first end of the second supporting piece is connected to one side of a web plate of the H-shaped steel, a telescopic rod is connected between the other side of the web plate and the outer groove, a spring group is sleeved on the telescopic rod, and a spring group is sleeved on the first end of the second supporting piece between the web plate and the outer groove.
Preferably, the wall panel is made of corrugated steel plates.
By adopting the technical scheme, the invention has the technical effects that:
1. the self-resetting energy consumption device and the cold-formed steel shear wall are assembled together to resist earthquake load, so that the vertical and horizontal bearing capacity of the shear wall is improved, the energy consumption and deformation capacity of the wall are optimized, the damage to the cold-formed steel structure caused by earthquake is reduced, and the property loss is reduced.
2. The disk spring set and the friction plate adopted by the self-resetting energy consumption device are easy to install and replace, and when part of components are damaged, the individual components can be disassembled and replaced, so that the later maintenance cost is reduced to the greatest extent.
3. The whole size of the wall body can be changed at will according to actual conditions in actual engineering, and meanwhile, the self-resetting energy consumption support adapts to the size of the wall body through adjusting the basket bolts, so that the prefabricated processing of a factory assembly line is facilitated, various cold-formed steel structure requirements can be met, the production is not limited, standardized production of components is realized in the factory, the production precision and efficiency are ensured, the manpower resources are saved, and the realization of industrialization and assembly of the cold-formed steel structure is greatly promoted.
4. The self-resetting energy-consumption supporting cold-formed steel shear wall is made of steel, and has the advantages of high strength, strong practicability, heat preservation, fire prevention, integration, high assembly degree, environment friendliness and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic layout view of a corrugated steel plate and keel connecting screw of a cold-formed steel shear wall with built-in diagonal self-resetting energy dissipation brace in embodiment 1 of the invention.
Fig. 2 is a schematic view of a cold-formed steel shear wall with built-in diagonal self-resetting energy dissipation brace according to embodiment 1 of the invention.
Fig. 3 is an exploded schematic view of a cold-formed steel shear wall with built-in diagonal self-resetting energy dissipation brace according to embodiment 1 of the present invention.
Fig. 4 is a front view of the center pillar of embodiment 1 of the present invention.
Fig. 5 is a schematic view of the side pillar according to the embodiment 1 and the embodiment 2 of the present invention, wherein the upper side is a front view, and the lower side is a top view.
Fig. 6 is a schematic diagram of a self-resetting energy consuming brace of embodiments 1 and 2 of the present invention.
Fig. 7 is an exploded schematic view of the self-resetting energy consuming brace of embodiments 1 and 2 of the present invention.
Fig. 8 is a schematic diagram of the self-resetting energy consuming brace of embodiments 1 and 2 of the present invention connected to a bottom anti-pulling member, wherein the self-resetting energy consuming brace of embodiment 1 is similar to the top and bottom anti-pulling member connection.
Fig. 9 is an exploded view of the connection of the self-resetting energy consuming brace of embodiments 1 and 2 to the bottom resistance element.
Fig. 10 is a schematic diagram showing the arrangement of the corrugated steel plate and the keel connecting screw of the cold-formed steel shear wall of the herringbone self-resetting energy-dissipating support in embodiment 2 of the invention.
Fig. 11 is a schematic view of a cold-formed steel shear wall with herringbone self-resetting energy dissipation braces according to embodiment 2 of the present invention.
Fig. 12 is an exploded schematic view of a cold-formed steel shear wall with herringbone self-resetting energy dissipation brace according to embodiment 2 of the present invention.
FIG. 13 is a schematic illustration of the connection of the self-resetting energy consuming brace with the top tamper resistant member of embodiment 2 of the present invention.
Fig. 14 is an exploded view of the connection of the self-resetting energy consuming brace and the top anti-pulling member according to embodiment 2 of the present invention.
In the figure:
the wall comprises a 1-wall keel, a 1 a-side upright post, a 1 b-upper and lower guide rail, a 1 c-middle upright post, a 2-wall panel, a 3-self-resetting energy consumption supporting unit, a 3 a-outer groove, 3 b-H-shaped steel, a 3 c-belleville spring group, a 3 d-threaded round steel, a 3 e-high-strength bolt, a 3 f-basket bolt, a 3 g-rod end bearing, a 3H-friction plate, a 3 i-telescopic rod, a 4-shear bolt, a 5-anti-pulling piece, a 6-self-tapping screw and a 7-clamping groove bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1 to 9, the embodiment provides a cold-formed steel shear wall with built-in diagonal self-resetting energy dissipation support, which can be used in the field of middle-high-rise cold-formed steel construction. The cold-formed steel shear wall mainly comprises three parts, namely a wall keel 1, a wall panel 2 and a self-resetting energy consumption supporting unit 3, and is mainly used for connecting the inside of the wall and the wall by a shear bolt 4, a pull-out resistant piece 5, a self-tapping screw 6 and a clamping groove bolt 7.
With specific reference to figures 1-5, the wall keel 1 mainly comprises side uprights 1a, upper and lower guide rails 1b and a middle upright 1C, wherein the side uprights 1a and the middle upright 1C are all C-shaped steel, the side uprights 1a are formed by connecting two C-shaped steel back to back and adopting self-tapping screws 6, the middle upright 1C is a single C-shaped steel, and an opening is reserved in the middle position of a middle upright web plate for the cross passing of screw thread round steel 3d in the self-resetting energy consumption supporting unit 3; the upper and lower guide rails 1b are U-shaped steel, the section of the U-shaped steel is matched with the section of the C-shaped steel of the upright post, and the side upright post 1a, the middle upright post 1C and the upper and lower guide rails 1b are connected and fixed by self-tapping screws 6. The wall panel 2 adopts corrugated steel plates, and is also connected with the wall keel 1 through self-tapping screws 6 to form a skin effect to resist transverse load.
As shown in fig. 6 to 9, the self-resetting energy-consuming support unit 3 is composed of an outer groove 3a, H-shaped steel 3b, a disc spring group 3c, a threaded round steel 3d, a high-strength bolt 3e, a basket bolt 3f, a rod end bearing 3g, a friction plate 3H and a telescopic rod 3 i. The friction plate 3H is fixed on two flanges of the H-shaped steel 3b and the inner side of the outer groove 3a, the H-shaped steel 3b and the outer groove 3a are clamped on two sides of the outer groove 3a through eight high-strength bolts 3e, the bolts can slide left and right in a bolt slideway of the outer groove 3a, and the H-shaped steel 3b and the outer groove 3a are fixed together by applying certain pre-stress through the high-strength bolts 3e, and the supporting friction force can be adjusted. One side of the screw thread round steel 3d is welded on the outer side of the outer groove 3a, and a connecting rod on the other side is welded on a web plate of the H-shaped steel 3b, so that the screw thread round steel 3d is conveniently connected with the screw thread round steel, and the friction reset unit 3 can realize the functions of pulling and pressing. The disc spring group 3c is respectively connected in series on the telescopic rod 3i and the threaded round steel 3d, the number of the disc spring groups 3c is determined according to the required friction sliding travel, the disc spring groups 3c are divided into a left part and a right part, the left part and the right part are respectively placed between the web plate of the H-shaped steel 3b and the outer groove 3a, and the telescopic rod 3i and the threaded round steel 3d also have the function of limiting the movement of the disc springs so as to prevent dislocation sliding. The threaded round steel 3d, the basket bolt 3f and the rod end bearing 3g form a connecting combination and are divided into an upper part and a lower part; the length of the threaded round steel 3d can be adjusted by adjusting the stud bolts 3f, so that the self-resetting energy-consuming support unit 3 is properly mounted on the diagonal of the cold-formed steel shear wall; the rod end bearing 3g is connected with a clamping groove screw rod 7 on the anti-pulling piece 5 of the wall body and is clamped, so that the self-resetting energy-consumption supporting unit 3 has a rotating function in a certain range.
Four anti-pulling pieces 5 are arranged at opposite angles of the shear wall, the anti-pulling pieces are connected and fixed through a plurality of self-tapping screws 6, small round holes are reserved on two side faces of the anti-pulling pieces 5 to fix clamping groove screws 7, and large round holes are reserved at the bottom end of the anti-pulling pieces 5 to be used for placing shear bolts 4. The shear bolts 4 are connected and fixed with the upper and lower guide rails 1b of the building foundation or other walls, so that the cold-formed steel shear wall plays a role in resisting transverse load.
The specific construction steps of the cold-formed steel shear wall with the built-in diagonal self-resetting energy dissipation support in the embodiment are as follows:
s1, selecting the section sizes of C-shaped steel, U-shaped steel and an anti-pulling piece according to the actual design size requirement, determining the sizes, the spacing and the end distances of self-tapping screws and high-strength bolts, manufacturing the anti-pulling piece, an edge stand column, a middle stand column, an upper guide rail and a lower guide rail, and reserving bolt holes in the upper guide rail, the lower guide rail and the anti-pulling piece in advance;
s2, splicing the side upright posts, the middle upright post and the upper and lower guide rails by adopting self-tapping screws, assembling into a cold-formed steel keel frame, and fixing the anti-pulling pieces at four opposite corners of the shear wall keel frame by the self-tapping screws;
s3, positioning, early-stage connection, preformed hole and anti-corrosion and fireproof treatment work are completed in engineering on the components such as the outer groove, the H-shaped steel, the disc spring group, the threaded round steel, the high-strength bolt, the basket bolt, the rod end bearing, the friction plate, the telescopic rod and the like which are formed in a machining mode.
S4, assembling two sets of threaded round steel, a basket bolt and a rod end bearing, welding one set of threaded round steel, an outer groove, welding the other set of threaded round steel, the other set of threaded round steel and the rod end bearing, and the telescopic rod respectively, fixing friction plates on two flanges of the H-shaped steel and the inner side of the outer groove through structural adhesive, respectively traversing two disc spring groups on the telescopic rod and the threaded round steel, finally enabling a high-strength bolt to penetrate through a reserved hole of the H-shaped steel and a bolt slideway of the outer groove, controlling the friction force of a self-resetting energy consumption support through adjusting the pretightening force of the high-strength bolt, and achieving the effects of self-resetting and energy consumption.
S5, installing clamping groove bolts on two sides of the anti-pulling piece, adjusting the whole length of the self-resetting energy-consuming support by rotating the basket bolts, enabling a rod end bearing of the self-resetting energy-consuming support to cross the clamping groove bolts of the anti-pulling piece, and adjusting nuts on the clamping groove bolts to enable the self-resetting energy-consuming support and the shear wall keel to be in a parallel state;
s6, repeating the operations of the steps S4 and S5, and completing the assembly of the self-resetting energy-consuming brace diagonally arranged on the shear wall;
s7, fixing corrugated steel plates together on the assembled shear wall keels by adopting self-tapping screws according to the final actual size requirement to form a complete cold-formed steel shear wall;
and S8, after the cold-formed steel shear wall is completed, the bottoms of the anti-pulling pieces of the upper and lower guide rails are connected with walls of the foundation or other layers through shear bolts, so that the cold-formed steel shear wall is connected and assembled together, and the integral installation of the cold-formed steel structure is completed.
Example 2:
referring to fig. 10 to 14, the embodiment provides a cold-formed steel shear wall body with herringbone cross type self-resetting energy dissipation support, which can be used in the field of middle and high-rise cold-formed steel construction. The cold-formed steel shear wall mainly comprises three parts, namely a wall keel 1, a wall panel 2 and a self-resetting energy consumption supporting unit 3, and is mainly used for connecting the inside of the wall and the wall by a shear bolt 4, a pull-out resistant piece 5, a self-tapping screw 6 and a clamping groove bolt 7.
The wall keel 1 mainly comprises side stand columns 1a, upper and lower guide rails 1b and a middle stand column 1C, wherein the side stand columns 1a and the middle stand column 1C are all formed by connecting two C-shaped steel back to back and adopting tapping screws 6, the middle stand column 1C is a single C-shaped steel, the upper and lower guide rails 1b are U-shaped steel, the section of the upper and lower guide rails 1b is matched with the C-shaped steel of the stand column, and the side stand columns 1a and the middle stand column 1C are connected and fixed with the upper and lower guide rails 1b by adopting tapping screws 6. The wall panel 2 adopts corrugated steel plates, and is also connected with the wall keel 1 through self-tapping screws 6 to form a skin effect to resist transverse load.
Referring to fig. 6 and 7, the self-resetting energy consumption supporting unit 3 is composed of an outer groove 3a, H-shaped steel 3b, a disc spring group 3c, a screw round steel 3d, a high strength bolt 3e, a basket bolt 3f, a rod end bearing 3g, a friction plate 3H and a telescopic rod 3 i. The friction plate 3H is fixed on two flanges of the H-shaped steel 3b and the inner side of the outer groove 3a, the H-shaped steel 3b and the outer groove 3a are clamped on two sides of the outer groove 3a through eight high-strength bolts 3e, the bolts can slide left and right in a bolt slideway of the outer groove 3a, the H-shaped steel 3b and the outer groove 3a are fixed together through applying certain pre-stress through the high-strength bolts 3e, and the supporting friction force can be adjusted. One side of the screw thread round steel 3d is welded on the outer side of the outer groove 3a, and a connecting rod on the other side is welded on a web plate of the H-shaped steel 3b, so that the screw thread round steel 3d is conveniently connected with the screw thread round steel, and the friction reset unit 3 can realize the functions of pulling and pressing. The disc spring group 3c is respectively connected in series on the telescopic rod 3i and the threaded round steel 3d, the number of the disc spring groups 3c is determined according to the required friction sliding travel, the disc spring groups 3c are divided into a left part and a right part, the left part and the right part are respectively placed between the web plate of the H-shaped steel 3b and the outer groove 3a, and the telescopic rod 3i and the threaded round steel 3d also have the function of limiting the movement of the disc springs so as to prevent dislocation sliding. The threaded round steel 3d, the basket bolt 3f and the rod end bearing 3g form a connecting combination and are divided into an upper part and a lower part; the length of the threaded round steel 3d can be adjusted by adjusting the stud bolts 3f, so that the self-resetting energy consumption unit 3 is properly installed on the cold-formed steel shear wall; the rod end bearing 3g is connected with the clamping groove screw rod 7 on the anti-pulling piece 5 of the wall body and is clamped, so that the self-resetting energy consumption supporting unit 3 has a rotating function in a certain range, and the self-resetting energy consumption unit 3 is connected with the bottom and top anti-pulling pieces 5 consistently.
Two anti-pulling pieces 5 are respectively arranged at the bottom corners of the shear wall and at the two sides of the top middle upright 1c, the anti-pulling pieces 5 at the bottom are fixedly connected with the side upright 1a through a plurality of self-tapping screws 6, the two anti-pulling pieces at the top are fixed by bolts 4, small round holes are reserved at the two sides of the anti-pulling pieces 5 to fix slot screws 7, and large round holes are reserved at the bottom ends of the anti-pulling pieces 5 to place shear bolts 4. The shear bolts 4 are connected and fixed with the upper and lower guide rails 1b of the building foundation or other walls, so that the cold-formed steel shear wall plays a role in resisting transverse load.
The specific construction steps of the cold-formed steel shear wall body of the herringbone cross type self-resetting energy dissipation support in the embodiment are as follows:
s1, selecting the section sizes of C-shaped steel, U-shaped steel and an anti-pulling piece according to the actual design size requirement, determining the sizes, the spacing and the end distances of self-tapping screws and high-strength bolts, manufacturing the anti-pulling piece, an edge stand column, a middle stand column, an upper guide rail and a lower guide rail, and reserving bolt holes in the upper guide rail, the lower guide rail and the anti-pulling piece in advance;
s2, splicing the side upright posts, the middle upright post and the upper and lower guide rails by adopting self-tapping screws, assembling into a cold-formed steel keel frame, and fixing the anti-pulling pieces to the bottom and the top of the shear wall keel frame through the self-tapping screws and bolts respectively;
s3, positioning, early-stage connection, preformed hole and anti-corrosion and fireproof treatment work are completed in engineering on the components such as the outer groove, the H-shaped steel, the disc spring group, the threaded round steel, the high-strength bolt, the basket bolt, the rod end bearing, the friction plate, the telescopic rod and the like which are formed in a machining mode.
S4, assembling two sets of threaded round steel, a basket bolt and a rod end bearing, welding one set of threaded round steel, an outer groove, welding the other set of threaded round steel, the other set of threaded round steel and the rod end bearing, and the telescopic rod respectively, fixing friction plates on two flanges of the H-shaped steel and the inner side of the outer groove through structural adhesive, respectively traversing two disc spring groups on the telescopic rod and the threaded round steel, finally enabling a high-strength bolt to penetrate through a reserved hole of the H-shaped steel and a bolt slideway of the outer groove, controlling the friction force of a self-resetting energy consumption support through adjusting the pretightening force of the high-strength bolt, and achieving the effects of self-resetting and energy consumption.
S5, installing clamping groove bolts on two sides of the anti-pulling piece, adjusting the whole length of the self-resetting energy-consuming support by rotating the basket bolts, enabling a rod end bearing of the self-resetting energy-consuming support to cross the clamping groove bolts of the anti-pulling piece, and adjusting nuts on the clamping groove bolts to enable the self-resetting energy-consuming support and the shear wall keel to be in a parallel state;
s6, repeating the S4 and S5 steps to complete the assembly of the self-resetting energy-consuming brace in the shear wall;
s7, fixing corrugated steel plates together on the assembled shear wall keels by adopting self-tapping screws according to the final actual size requirement to form a complete cold-formed steel shear wall;
and S8, after the cold-formed steel shear wall is completed, the bottoms of the anti-pulling pieces of the upper guide rail and the lower guide rail are connected with the walls of the foundation or other layers through shear bolts, so that the cold-formed steel shear wall is connected and assembled together, and the integral installation of the cold-formed steel structure is completed.
Compared with the prior art, the invention has the following advantages:
1. the self-resetting energy consumption device and the cold-formed steel shear wall are assembled together to resist earthquake load, so that the vertical and horizontal bearing capacity of the shear wall is improved, the energy consumption and deformation capacity of the wall are optimized, the damage to the cold-formed steel structure caused by earthquake is reduced, and the property loss is reduced.
2. The disc spring set and the friction plate adopted by the self-resetting energy consumption device are easy to install and replace, and when part of components are damaged, the individual components can be detached and replaced, so that the later maintenance cost is reduced to the greatest extent.
3. The whole size of the wall body can be changed at will according to actual conditions in actual engineering, and meanwhile, the self-resetting energy consumption support adapts to the size of the wall body through adjusting the basket bolts, so that the prefabricated processing of a factory assembly line is facilitated, various cold-formed steel structure requirements can be met, the production is not limited, standardized production of components is realized in the factory, the production precision and efficiency are ensured, the manpower resources are saved, and the realization of industrialization and assembly of the cold-formed steel structure is greatly promoted.
4. The cold-formed steel shear wall with the built-in diagonal or herringbone cross self-resetting energy dissipation support is made of steel, and has the advantages of high strength, strong practicability, heat preservation, fire prevention, integration, high assembly degree, environmental friendliness and the like.
None of the inventions are related to the same or are capable of being practiced in the prior art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A cold-formed steel shear wall body of self-resetting energy dissipation brace is characterized in that: the self-resetting energy consumption support unit comprises a wall keel, a wall panel connected to at least one side of the wall keel, and a self-resetting energy consumption support unit arranged in the wall keel;
the self-resetting energy consumption supporting unit comprises a first supporting piece and a second supporting piece, wherein the first end of the first supporting piece is connected with an outer groove, the first end of the second supporting piece is connected with a friction piece, the friction piece slides and rubs on the inner wall of the outer groove, a spring group connected in series along the sliding direction is arranged between the two sides of the friction piece and the outer groove, and the second ends of the first supporting piece and the second supporting piece are respectively connected with the wall keel;
the two ends of the self-resetting energy consumption supporting unit are respectively connected with the corresponding corners of the wall keel by adopting anti-pulling pieces; the anti-pulling piece is internally fixed with a clamping groove screw rod, and the second ends of the first support piece and the second support piece are respectively connected with the clamping groove screw rod in a rotating way through bearings;
the friction piece comprises H-shaped steel and friction plates, the two friction plates are respectively connected between the outer sides of two flanges of the H-shaped steel and two groove walls of the outer groove by adopting high-strength bolts, bolt slide ways are arranged on the groove walls along the sliding direction of the friction piece, and the high-strength bolts are connected in the bolt slide ways; the first support piece and the second support piece are threaded round steel with a basket bolt at the second end, the first end of the second support piece is connected to one side of a web plate of the H-shaped steel, a telescopic rod is connected between the other side of the web plate and the outer groove, a spring set is sleeved on the telescopic rod, and the spring set is sleeved on the first end of the second support piece between the web plate and the outer groove.
2. The self-resetting energy consuming brace cold-formed steel shear wall of claim 1, wherein: the wall keel comprises side stand columns on the left side and the right side, guide rails on the upper end and the lower end and a middle stand column, wherein the two ends of the guide rails are connected with the side stand columns, and the two ends of the middle stand column are connected with the guide rails.
3. The self-resetting energy consuming brace cold-formed steel shear wall of claim 2, wherein: a group of self-resetting energy consumption supporting units are respectively connected between two pairs of opposite angles of the upright posts on two sides of the wall keel, and an opening for the two groups of self-resetting energy consumption supporting units to cross is formed in the middle position of the middle upright post.
4. The self-resetting energy consuming brace cold-formed steel shear wall of claim 2, wherein: a group of self-resetting energy consumption supporting units are respectively connected between the bottom ends of the upright posts on the two sides of the wall keel and the top ends of the middle upright posts.
5. The self-resetting energy consuming brace cold-formed steel shear wall of claim 2, wherein: the anti-pulling piece is connected with a shear bolt, and holes for the shear bolt to pass through are formed in the guide rail on the upper part and the lower part of the anti-pulling piece corresponding to the anti-pulling piece.
6. The self-resetting energy consuming brace cold-formed steel shear wall of claim 1, wherein: the wall panel adopts corrugated steel plates.
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| CN116290375B (en) * | 2023-05-24 | 2023-08-18 | 中铁城建集团第一工程有限公司 | Anti-seismic buckling support system and support method thereof |
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| CN105507439B (en) * | 2015-11-24 | 2018-07-31 | 北京工业大学 | A kind of piston type filling compression spring Self-resetting energy dissipation brace |
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| CN113389290B (en) * | 2021-06-04 | 2022-05-10 | 大连交通大学 | Self-resetting friction energy dissipation amplifying damper |
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