CN112376977A - T-shaped recoverable vertical connecting structure - Google Patents
T-shaped recoverable vertical connecting structure Download PDFInfo
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- CN112376977A CN112376977A CN202011391975.3A CN202011391975A CN112376977A CN 112376977 A CN112376977 A CN 112376977A CN 202011391975 A CN202011391975 A CN 202011391975A CN 112376977 A CN112376977 A CN 112376977A
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- shaped steel
- shaped
- wall body
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- vertical connection
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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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
Abstract
The invention discloses a T-shaped recoverable vertical connecting structure which comprises at least one structural unit, wherein the structural unit comprises a left wall body, a right wall body, left T-shaped steel, right T-shaped steel, a friction limiter, a pre-pull rod and a high-strength bolt, the T-shaped steel is connected with the wall body through the high-strength bolt, a batten plate of the friction limiter is connected with a web plate of the T-shaped steel through the high-strength bolt, and two ends of the pre-pull rod are respectively anchored on an outer plate of the friction limiter through anchors. The self-resetting energy-consumption-performance-based vertical connection structure is applied to vertical connection of structures such as a shear wall, and the lateral resistance of the structures such as the shear wall is improved through the self-resetting and energy-consumption performance of the vertical connection.
Description
Technical Field
The invention belongs to the field of civil engineering, and relates to a T-shaped recoverable vertical connecting structure.
Background
The reinforced concrete wall is a side force resistant ductility system widely adopted in building structures. The experience of earthquake damage shows that the reinforced concrete wall body is easy to form a damage area at the bottom of the reinforced concrete wall body, and the plastic hinge dissipates earthquake energy and causes huge repair cost after the earthquake. In order to improve the construction quality and the construction progress of the wall body, an efficient construction method of prefabricating and assembling on site through factories has appeared on the market, but the integrity of the wall body is damaged by the generated vertical joint. When the vertical connection is subjected to brittle failure, the side resistance of the adjacent wall bodies is obviously weakened. When the vertical connection is subjected to ductile energy consumption, the residual deformation of the adjacent wall bodies can be obviously increased. Therefore, it is necessary to provide both load bearing capacity and self-restoring capacity for the vertical connection of the wall. The invention provides a T-shaped recoverable vertical connecting structure, which absorbs seismic energy through frictional sliding between a web plate of T-shaped steel and a friction limiter, and realizes a self-resetting function through restoring force of a pre-pull rod. Compared with the prior vertical connection technology, the invention has the advantages of capability of being adjusted according to requirements, simple structure, convenient construction and easy replacement.
Disclosure of Invention
The technical problem is as follows: the invention provides a T-shaped recoverable vertical connecting structure which can effectively avoid brittle failure and has good energy consumption capability and a self-resetting function.
The technical scheme is as follows: the T-shaped recoverable vertical connecting structure comprises at least one structural unit, wherein the structural unit comprises a left wall body and a right wall body which are arranged at intervals, a left T-shaped steel and a right T-shaped steel which are identical in cross section, a flange of the left T-shaped steel is in bolted connection with the left wall body, a flange of the right T-shaped steel is in bolted connection with the right wall body, two friction limiters which are arranged at the longitudinal two sides of the left T-shaped steel and the right T-shaped steel, and two groups of pre-pull rods which are arranged at web plates of the left T-shaped steel and the right T-shaped steel.
The T-shaped restorable vertical connecting structure is characterized in that the friction limiter comprises an outer plate with a reserved square hole and two batten plates which are connected with the outer plate and are reserved with a plurality of round holes, a pre-pull rod (6) penetrates through the square hole and is fixed on the outer plate through an anchoring device, and web plates of the left T-shaped steel and the right T-shaped steel are connected with the two batten plates positioned on the outer side of the web plates through high-strength bolts.
Furthermore, in the T-shaped recoverable vertical connecting structure, rectangular slotted holes which can be penetrated by high-strength bolts are reserved in the connecting positions of the web plates of the left T-shaped steel and the right T-shaped steel and the batten plate respectively, and a plurality of round holes which can be penetrated by the high-strength bolts are reserved in the connecting positions of the flanges of the left T-shaped steel and the right T-shaped steel and the left wall body and the right wall body respectively.
Furthermore, the T-shaped recoverable vertical connecting structure is characterized by comprising a plurality of structural units which are sequentially connected in the vertical direction and share a left wall body and a right wall body.
Furthermore, the T-shaped recoverable vertical connecting structure is characterized by comprising a plurality of structural units which are sequentially connected in the horizontal direction, and two adjacent structural units share one wall.
Has the advantages that: compared with the prior art, the invention has the following advantages:
(1) the invention can effectively reduce the plastic damage of the bottom of the wall body under the action of the earthquake. Most of seismic energy is dissipated through early yielding and plastic deformation of the bottom area of the traditional reinforced concrete wall body, so that the traditional reinforced concrete wall body is difficult to repair and is easier to cause structural collapse. The vertical connection in the invention increases the lateral restraint of the wall body, and the damage to the bottom of the wall body is effectively reduced through the sufficient resettable energy consumption capability of the wall body.
(2) The invention adopts the relative sliding of the friction limiter as a shear force transmission mode of vertical connection, and effectively integrates the friction energy consumption and the self-resetting function. The change of the friction force can be completed by changing the number and the pretightening force of the high-strength bolts and the initial prestress of the pre-pull rod. When the pretension applied to the pre-pull rod overcomes the sliding friction force, the structure can realize complete self-resetting, and the energy consumption capability and the recovery capability of the structure are controllable.
(3) The vertical connecting structure is simple in structure and suitable for large-scale industrial production and manufacturing. The structure can be prefabricated in a factory, is convenient to install and disassemble, realizes the sustainable use of the connecting device, and has good economic benefits. Because no complex processing technology is involved, manufacturers can carry out industrial production without great adjustment, thereby reducing the manufacturing difficulty and cost and having higher price competitiveness.
Drawings
FIG. 1 is a three-dimensional schematic view of the apparatus of the present invention;
FIG. 2 is a front view of the apparatus of the present invention;
FIG. 3 is a three-dimensional schematic view of the T-section of FIG. 2;
FIG. 4 is a three-dimensional schematic view of the friction stop of FIG. 2;
FIG. 5 is a first schematic diagram of the operation of the device of the present invention when it is displaced to the left;
FIG. 6 is a second schematic diagram of the operation of the device of the present invention during rightward displacement;
the figure shows that: the wall body comprises a left wall body 1, a right wall body 2, a left T-shaped steel 3, a right T-shaped steel 4, a rectangular slotted hole 41, a round hole 42, a friction limiter 5, an outer plate 51, a batten plate 52, a round hole 53, a square hole 54 and a pretensioning rod 6.
Detailed Description
As shown in fig. 1 to 4, the T-shaped recoverable vertical connection structure comprises at least one structural unit, wherein the structural unit comprises a left wall body 1 and a right wall body 2 which are arranged at intervals, a left T-shaped steel 3 and a right T-shaped steel 4 which have the same cross section, a flange of the left T-shaped steel 3 is in bolt connection with the left wall body 1, a flange of the right T-shaped steel 4 is in bolt connection with the right wall body 2, two friction limiters 5 which are arranged at the longitudinal two sides of the left T-shaped steel 3 and the right T-shaped steel 4, and two groups of pre-pull rods 6 which are arranged at web positions of the left T-shaped steel 3 and the right T-shaped steel 4.
The friction limiter 5 comprises an outer plate 51 with a reserved square hole 54 and two batten plates 52 connected with the outer plate 51 and reserved with a plurality of round holes 53, the pre-tensioning rod 6 penetrates through the square hole 54 and is fixed on the outer plate 51 through an anchoring device, and the web plates of the left T-shaped steel 3 and the right T-shaped steel 4 are connected with the two batten plates 52 positioned on the outer sides of the web plates through high-strength bolts. Rectangular slotted holes 31 and 41 which can be penetrated by high-strength bolts are reserved on the web plates of the left T-shaped steel 3 and the right T-shaped steel 4 at the positions connected with the gusset plate 52 respectively, and a plurality of round holes 32 and 42 which can be penetrated by the high-strength bolts are reserved on the flange plates of the left T-shaped steel 3 and the right T-shaped steel 4 at the positions connected with the wall bodies 1 and 2 respectively.
Bolt holes can be pre-buried in the left wall body 1 and the right wall body 2, and bolt connection with the left T-shaped steel 3 and the right T-shaped steel 4 is facilitated. The integrity of the vertical connection is realized by the high-strength bolt pretightening force between the patch plates and the initial prestress of the pretensioning rod between the outer plates. The pre-tension rod can be made of super elastic material, such as GFRP, CFRP, AFRP, BFRP and other fiber reinforced composite materials and Shape Memory Alloy (SMA). The initial prestress applied by the pre-pull rod between the outer plates is larger than the sliding friction force generated by the pre-tightening force of the bolts between the patch plates.
The working principle of the T-shaped recoverable vertical connecting structure is shown in the figures 5-6: when the wall bodies are deformed laterally, the adjacent wall bodies respectively drive the T-shaped steels connected with the adjacent wall bodies to generate the tendency of mutual dislocation, when the staggered external force is larger than the sum of the initial prestress applied by the pre-pull rods between the outer plates and the sliding friction force generated by the pre-tightening force of the bolts between the batten plates, the left T-shaped steel 3 and the right T-shaped steel 4 are caused to slide relatively, further, the friction limiting device 5 is jacked open, gaps are generated between the left T-shaped steel 3 and the outer plates 51, in the process, the pre-pull rods 6 are gradually pulled to elastically extend, and the friction sliding of the friction limiting device 5 in the pushing-open process dissipates the seismic energy. When the lateral load disappears, the initial prestress applied by the pre-tensioning rod overcomes the sliding friction force generated by the pre-tensioning force of the bolt, so that the structure returns to the initial position again, and therefore the vertical connection effectively integrates the friction energy consumption and the self-resetting function.
Claims (5)
1. The utility model provides a vertical connection structure of T shape retrieval, its characterized in that, this structure includes at least one constitutional unit, constitutional unit is including left wall body (1) and right wall body (2), left T shaped steel (3) and right T shaped steel (4) that the cross-section is the same that are arranged apart from, the flange of left side T shaped steel (3) carries out bolted connection with left side wall body (1), the flange of right T shaped steel (4) carries out bolted connection with right side wall body (2), two friction stopper (5) that are located left T shaped steel (3) and right T shaped steel (4) vertical both sides, two sets of pre-pull rod (6) that are located left T shaped steel (3) and right T shaped steel (4) web position.
2. The T-shaped recoverable vertical connection structure according to claim 1, wherein the friction limiter (5) comprises an outer plate (51) with a reserved square hole (54) and two batten plates (52) connected with the outer plate (51) with a plurality of reserved circular holes (53), the pre-pull rod (6) penetrates through the square hole (54) and is fixed on the outer plate (51) through an anchoring device, and webs of the left T-shaped steel (3) and the right T-shaped steel (4) are connected with the two batten plates (52) located on the outer sides of the webs through high-strength bolts.
3. The T-shaped recoverable vertical connecting structure according to claim 1, wherein rectangular slotted holes (31) and (41) which can be penetrated by high-strength bolts are reserved in the connecting positions of the web plates of the left T-shaped steel (3) and the right T-shaped steel (4) and the gusset plate (52), and a plurality of round holes (32) and (42) which can be penetrated by high-strength bolts are reserved in the connecting positions of the flanges of the left T-shaped steel (3) and the right T-shaped steel (4) and the wall bodies (1) and (2).
4. The T-shaped recoverable vertical connection according to claim 1, 2 or 3, characterized in that the structure comprises a plurality of structural units connected in series in the vertical direction and sharing the left and right walls (1) and (2).
5. The T-shaped recoverable vertical connection according to claim 1, 2 or 3, wherein the structure comprises a plurality of structural units connected in series in the horizontal direction, and two adjacent structural units share one wall (1) or (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391975.3A CN112376977A (en) | 2020-12-01 | 2020-12-01 | T-shaped recoverable vertical connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391975.3A CN112376977A (en) | 2020-12-01 | 2020-12-01 | T-shaped recoverable vertical connecting structure |
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| CN112376977A true CN112376977A (en) | 2021-02-19 |
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| CN202011391975.3A Pending CN112376977A (en) | 2020-12-01 | 2020-12-01 | T-shaped recoverable vertical connecting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123523A (en) * | 2021-04-15 | 2021-07-16 | 重庆大学 | Connecting beam structure capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113123493A (en) * | 2021-04-15 | 2021-07-16 | 重庆大学 | Infilled wall connection mode with recoverable energy consumption function |
| CN113175417A (en) * | 2021-04-15 | 2021-07-27 | 重庆大学 | Wind turbine generator system lattice type tower capable of recovering energy consumption and enhancing energy consumption capacity |
-
2020
- 2020-12-01 CN CN202011391975.3A patent/CN112376977A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123523A (en) * | 2021-04-15 | 2021-07-16 | 重庆大学 | Connecting beam structure capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113123493A (en) * | 2021-04-15 | 2021-07-16 | 重庆大学 | Infilled wall connection mode with recoverable energy consumption function |
| CN113175417A (en) * | 2021-04-15 | 2021-07-27 | 重庆大学 | Wind turbine generator system lattice type tower capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113123493B (en) * | 2021-04-15 | 2022-11-18 | 重庆大学 | Infilled wall connection mode with recoverable energy consumption function |
| CN113175417B (en) * | 2021-04-15 | 2023-03-21 | 重庆大学 | Wind turbine generator system lattice type tower frame capable of recovering energy consumption capability and enhancing energy consumption capability |
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