CN113356404A - Friction energy consumption based dry type connecting piece and construction method - Google Patents
Friction energy consumption based dry type connecting piece and construction method Download PDFInfo
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- CN113356404A CN113356404A CN202110745213.7A CN202110745213A CN113356404A CN 113356404 A CN113356404 A CN 113356404A CN 202110745213 A CN202110745213 A CN 202110745213A CN 113356404 A CN113356404 A CN 113356404A
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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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
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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
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a friction energy consumption based dry type connecting piece and a construction method, wherein two pre-buried restraint plates are respectively prefabricated on the end surfaces of two walls, energy consumption plates and connecting plates are installed on two sides of the two pre-buried restraint plates, the energy consumption plates and the connecting plates are connected with the pre-buried restraint plates through slotted holes, a fastening piece moves in the slotted hole when the walls are stressed, the pre-buried restraint plates and the energy consumption plates generate relative displacement, and the seismic energy is consumed through friction force generated by the pre-buried restraint plates and the energy consumption plates. According to the construction method of the connecting piece, the embedded restraint plate is prefabricated in the wall body, the energy dissipation plates and the connecting plates are installed on the two sides of the embedded restraint plate after hoisting and positioning, operation is convenient and fast, meanwhile, the requirement on precision is not high, installation and disassembly are easy, and the connecting piece can realize dry connection of vertical seams of the assembled wall body.
Description
Technical Field
The invention relates to the technical field of wall body connecting methods of an assembled composite wall structure, in particular to a friction energy consumption-based dry type connecting piece and a construction method.
Background
Along with the acceleration of the building industrialization process, the assembly type building structure is advocated greatly, and the application rate of prefabricated assembly type part components is increased day by day. The prefabricated wall body structure is one of effective ways for realizing the modernization of the housing industry, compared with a cast-in-place concrete structure, the prefabricated concrete structure has the characteristics of high construction speed, field support and template saving, material and labor saving, remarkable energy-saving and emission-reducing effects and the like, and is favorable for improving the labor productivity of buildings.
The boundary connecting technology is one of key core technologies of the prefabricated concrete structure, reliable stressed steel bar connection and reasonable node and seam construction measures ensure that prefabricated parts are connected into a whole, the structural performance of the prefabricated parts is ensured to have the integrity, the ductility, the bearing capacity and the durability which are equal to those of a cast-in-place concrete structure, and the effect which is equal to that of the cast-in-place concrete structure is achieved. The existing boundary connection of the prefabricated concrete structure is mainly wet connection, the demand of the wet connection on a template is large, the construction period is long, and the boundary connection is easily influenced by seasons; the existing dry connection mainly adopts steel bar sleeve grouting connection, but has the defects of complex construction process and higher cost.
Aiming at the existing problems, an energy-consuming dry type connecting piece is needed to be designed, so that the construction process is simplified, and the production cost is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a friction energy consumption-based dry type connecting piece and a construction method.
The invention is realized by the following technical scheme:
a friction energy consumption based dry type connecting piece comprises an energy consumption plate, a connecting plate and two pre-buried constraint steel plates;
the embedded constraint steel plates are provided with first slots, the energy consumption plates and the connecting plates are provided with second slots, the slots are located at the same position, the energy consumption plates and the connecting plates are superposed on the side walls of the embedded constraint steel plates, one ends of the energy consumption plates and the connecting plates are connected with the first slot of one embedded constraint steel plate through fasteners, the second slots of the energy consumption plates and the connecting plates are connected with the first slot of the other embedded constraint steel plate through fasteners, and the length directions of the first slots and the second slots are arranged in a right angle.
Preferably, energy dissipation plates and connecting plates are arranged on two sides of the embedded constraint steel plates.
Preferably, the energy dissipation plate is located between the embedded constraint steel plate and the connecting plate.
Preferably, the energy dissipation plate has the same structure as the connecting plate, the second slot hole is located at one end of the energy dissipation plate, and the other end of the energy dissipation plate is provided with a round hole.
Preferably, the embedded restraint plate is connected with the wall body through an anchor rod.
Preferably, the fastener is a high-strength bolt.
Preferably, the energy dissipation plate is a brass plate, and the embedded restraint plate and the connecting plate are metal plates.
A construction method based on friction energy dissipation type dry connecting pieces comprises the following steps:
step 1, respectively prefabricating two pre-buried constraint steel plates at preset positions of two walls in the prefabricating process of the walls;
and 3, filling foam strips in the splicing seams of the two walls, and finally grouting and filling the middle gap parts of the splicing seams by using high-strength grouting materials.
Preferably, the embedded constraint steel plates are positioned at the rib beam of the wall body.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the friction energy consumption type-based dry-type connecting piece, the two pre-buried restraint plates are respectively prefabricated on the end faces of the two walls, the energy consumption plates and the connecting plates are installed on the two sides of the two pre-buried restraint plates and are connected with the pre-buried restraint plates through the slotted holes, the fasteners move in the slotted holes when the walls are stressed, the pre-buried restraint plates and the energy consumption plates generate relative displacement, and the seismic energy is consumed through friction force generated by the pre-buried restraint plates and the energy consumption plates.
Furthermore, energy dissipation plates are arranged on two sides of the insertion plate, and after the energy dissipation plates are worn, the wall plate is hoisted again by detachable fasteners to replace the energy dissipation plates.
According to the construction method of the connecting piece, the embedded restraint plate is prefabricated in the wall body, the energy dissipation plates and the connecting plates are installed on the two sides of the embedded restraint plate after hoisting and positioning, operation is convenient and fast, meanwhile, the requirement on precision is not high, installation and disassembly are easy, and the connecting piece can realize dry connection of vertical seams of the assembled wall body.
Drawings
FIG. 1 is a connecting member layout of the prefabricated composite wall panel of the present invention
FIG. 2 is a schematic structural view of an embedded restraint plate according to the present invention;
FIG. 3 is a schematic structural diagram of an energy dissipation plate according to the present invention;
fig. 4 is a schematic structural diagram of the connecting plate of the present invention.
In the figure: 1-high strength bolt; 2-connecting plates; 3-energy consumption plate; 4-embedding a restraint plate; 5-anchor rod; 6-vertical slotted holes; 7-transverse slotted holes; 8-round hole.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1-4, a friction energy dissipation based dry type connector comprises an energy dissipation plate 3, a connecting plate 2 and two pre-buried constraint steel plates 4;
the embedded constraint steel plate 4 is provided with a first slotted hole, the energy consumption plate 3 and the connecting plate 2 are provided with second slotted holes, the positions of the slotted holes are the same, the energy consumption plate 3 and the connecting plate 2 are superposed on the side wall of the embedded constraint steel plate 4, one end of the energy consumption plate 3 and one end of the connecting plate 2 are connected with the first slotted hole of one embedded constraint steel plate 4 through a fastener, the second slotted hole of the energy consumption plate 3 and the connecting plate 2 and the first slotted hole of the other embedded constraint steel plate 4 are connected through a fastener, and the length directions of the first slotted hole and the second slotted hole are arranged in a right angle mode.
Referring to fig. 2, energy consumption plates 3 and connecting plates 2 are arranged on two sides of the pre-buried constraint steel plate 4, and the energy consumption plates 3 are located between the pre-buried constraint steel plate 4 and the connecting plates 2.
The first slotted hole on the pre-buried restraint steel plate 4 is a vertical slotted hole 6, and the second slotted holes on the energy dissipation plate 3 and the connecting plate 2 are transverse slotted holes.
Two first slotted holes are formed in the pre-buried constraint steel plate 4, and two second slotted holes are formed in the energy dissipation plate 3 and the connecting plate 2.
Referring to fig. 3 and 4, the other ends of the energy dissipation plate 3 and the connecting plate 2 are provided with round holes, and the fasteners penetrate through the round holes to connect the energy dissipation plate 3 and the connecting plate 2 with the pre-buried constraint steel plate 4.
The pre-buried restraint plate 4 is connected with the wall body through the anchor rods 5, a plurality of anchor rod holes are formed in the pre-buried restraint steel plate 4, and the anchor rod holes are arranged at intervals from top to bottom.
The fastener is high-strength bolt 1, and the high-strength bolt is designed to be connected in a pressure bearing mode.
The energy dissipation plate 3 is a brass plate, the embedded restraint plate 4 and the connecting plate are metal plates, and steel plates are preferred.
The energy consumption principle based on the friction energy consumption type dry connecting piece is as follows: the energy dissipation plate consumes energy through friction force between the energy dissipation plate and the pre-buried restraint plate, so that the pre-buried restraint plate, the connecting plate and the brass plate are designed to be provided with round holes or slotted holes at different positions, the high-strength bolt is designed to be in pressure-bearing connection, and the bolt moves when a wall body is stressed, so that the adjacent pre-buried restraint plate and the brass plate generate relative displacement and consume seismic energy through the friction force generated by the pre-buried restraint plate and the brass plate. When the wall body is stressed, the wall plates on the two sides are vertically dislocated, and the bolt moves in the slotted hole, so that the energy dissipation plate and the embedded restraint plate are vertically displaced relatively, and the seismic energy is consumed through friction force generated by the energy dissipation plate and the embedded restraint plate.
The stress law of the wall body and the connecting piece is as follows: the method comprises a first stage, when the wall is stressed to be small, the stress of a connecting piece at a joint is small, a bolt does not slip, the connecting piece is in an elastic stage and is stressed together with the wall, the connecting piece enters a second stage along with the increase of load, the external shearing force borne by the bolt exceeds the limit friction force of the bolt to slip, the energy dissipation plate, the embedded restraint plate and the connecting plate are subjected to relative slip deformation to consume energy through the friction force, the embedded restraint plate is still in an elastic deformation stage at the moment, the connecting plate enters a third stage along with the further increase of the load, a bolt rod is in contact with a hole wall, and the connecting piece consumes energy mainly through plastic deformation of the connecting plate.
The construction method of the friction energy consumption type dry connecting piece provided by the invention is explained in detail below, and comprises the following steps:
step 1, production of standard prefabricated composite wall panels. The method comprises the steps of firstly assembling special steel templates, placing embedded parts, pouring C30 fine aggregate concrete with the thickness of 20mm on the bottom layer, placing ecological blocks immediately, placing processed transverse rib and longitudinal rib steel bars into the templates, placing two embedded constraint plates at rib beams of two walls, fixing the two embedded constraint plates by using a positioning device, pouring C30 fine aggregate concrete after the confirmation of no errors, then leveling and plastering, performing standard maintenance after the prefabrication is completed, and removing the templates when the strength meets the requirements to form the standard prefabricated composite wall board.
And 2, mounting a connecting piece. And hoisting the composite wallboards to corresponding positions, respectively installing energy dissipation plates and connecting plates on two sides of the two pre-buried restraint plates after the two composite wallboards are vertically connected to meet the requirements, and fixing the energy dissipation plates and the connecting plates by using high-strength bolts which apply pre-tightening force.
And 3, carrying out seam treatment after the connecting piece is fixed. And (3) filling EPS foam strips with the diameter of 25mm into two sides of the wallboard along the vertical direction, then leveling the vertical joint by using mortar, and finally grouting and filling the middle gap part by using high-strength grouting material.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. A friction energy dissipation based dry type connecting piece is characterized by comprising an energy dissipation plate (3), a connecting plate (2) and two embedded constraint steel plates (4);
the embedded restraint steel plate (4) is provided with a first slotted hole, the energy consumption plate (3) and the connecting plate (2) are provided with a second slotted hole, the positions of the slotted holes are the same, the energy consumption plate (3) and the connecting plate (2) are overlapped on the side wall of the embedded restraint steel plate (4), one end of the energy consumption plate (3) and one end of the connecting plate (2) are connected with the first slotted hole of one embedded restraint steel plate (4) through a fastener, the second slotted holes of the energy consumption plate (3) and the connecting plate (2) are connected with the first slotted hole of the other embedded restraint steel plate (4) through a fastener, and the length directions of the first slotted hole and the second slotted hole are arranged in a right angle mode.
2. The dry connecting piece based on friction energy dissipation type as recited in claim 1, wherein the pre-buried constraint steel plate (4) is provided with the energy dissipation plate (3) and the connecting plate (2) at both sides.
3. A dry connector of the friction-based energy dissipation type as defined in claim 1, wherein the energy dissipation plate (3) is located between the pre-embedded constraining steel plate (4) and the connecting plate (2).
4. The dry type connector of claim 1, wherein the dissipating plate has the same structure as the connecting plate, the second slot is formed at one end of the dissipating plate, and the other end of the dissipating plate is provided with a circular hole.
5. The dry connector based on friction energy dissipation type as recited in claim 1, wherein the pre-embedded constraining plate (4) is connected with the wall body through anchor rods (5).
6. A dry connection of the friction dissipative type according to claim 1, wherein the fastening element is a high-strength bolt (1).
7. The dry connecting piece based on friction energy dissipation type as recited in claim 1, wherein the energy dissipation plate (3) is a brass plate, and the pre-embedded constraining plate (4) and the connecting plate are metal plates.
8. A construction method of a friction energy dissipation type dry type connector according to any one of claims 1 to 7, comprising the steps of:
step 1, respectively prefabricating two pre-buried constraint steel plates at preset positions of two walls in the prefabricating process of the walls;
step 2, enabling the two pre-buried constraint steel plates to be located on the same plane, and installing an energy consumption plate and a connecting plate on the side walls of the two pre-buried constraint plates;
and 3, filling foam strips in the splicing seams of the two walls, and finally grouting and filling the middle gap parts of the splicing seams by using high-strength grouting materials.
9. The construction method of the friction energy dissipation type dry connecting piece as claimed in claim 8, wherein the pre-buried constraint steel plates are located at the rib beam of the wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110745213.7A CN113356404A (en) | 2021-06-30 | 2021-06-30 | Friction energy consumption based dry type connecting piece and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110745213.7A CN113356404A (en) | 2021-06-30 | 2021-06-30 | Friction energy consumption based dry type connecting piece and construction method |
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|---|---|
| CN113356404A true CN113356404A (en) | 2021-09-07 |
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| CN202110745213.7A Pending CN113356404A (en) | 2021-06-30 | 2021-06-30 | Friction energy consumption based dry type connecting piece and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412259A (en) * | 2021-10-11 | 2022-04-29 | 北京建筑大学 | Hierarchical energy dissipation is from restoring to throne assembled pier stud |
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2021
- 2021-06-30 CN CN202110745213.7A patent/CN113356404A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412259A (en) * | 2021-10-11 | 2022-04-29 | 北京建筑大学 | Hierarchical energy dissipation is from restoring to throne assembled pier stud |
| CN114412259B (en) * | 2021-10-11 | 2023-06-09 | 北京建筑大学 | Graded energy dissipation self-resetting assembled pier column |
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