CN109112953B - Shearing-resistant connecting piece for wood-concrete combined component - Google Patents
Shearing-resistant connecting piece for wood-concrete combined component Download PDFInfo
- Publication number
- CN109112953B CN109112953B CN201811090866.0A CN201811090866A CN109112953B CN 109112953 B CN109112953 B CN 109112953B CN 201811090866 A CN201811090866 A CN 201811090866A CN 109112953 B CN109112953 B CN 109112953B
- Authority
- CN
- China
- Prior art keywords
- wood
- toothed plate
- shearing
- connecting piece
- shear connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010008 shearing Methods 0.000 title claims abstract description 33
- 239000002023 wood Substances 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a shearing-resistant connecting piece for a wood-concrete combined member, which consists of a PZ-type combined pin shearing-resistant connecting piece and a toothed plate, wherein the toothed plate is fixed at the bottom of the PZ-type combined pin shearing-resistant connecting piece, a plurality of toothed holes are formed in the toothed plate, each toothed hole is correspondingly provided with a tooth for pressing the shearing-resistant connecting piece into a wood structure of the wood-concrete combined member, and a plurality of teeth are sequentially arranged to form the toothed plate. The invention combines the PZ type combined pin shear connector and the toothed plate to form a new shear connector, and the shear connector has excellent static bearing performance, sliding resistance, pulling resistance and fatigue resistance, can well transfer the shearing force between the wood board and the concrete combined member, prevents the lifting of the concrete plate, and meets the stress requirement of the structural structure.
Description
Technical Field
The invention relates to the technical field of engineering structure connectors, in particular to a shearing-resistant connector for a wood-concrete combined member.
Background
Compared with the traditional wood structure, the bending bearing capacity and rigidity of the wood-concrete combined member are improved to a greater extent, and the fireproof performance is better. The wood-concrete combined member is a structural system which is stressed jointly after two members of wood and concrete are combined by utilizing a shear connector. The shear connector is a key element in the wood-concrete composite component, transmits longitudinal shear force on the interface of two materials and resists relative dislocation between the interface of the two materials, so that the wood component is pulled while the concrete is pressed, and the composite effect is formed.
The common connecting pieces such as MCL combined pin shear connectors and PBL shear connectors are generally only applied to concrete structures, and have problems in the construction application process, such as poor sliding resistance, stress concentration, poor fatigue resistance and the like, and cannot meet the structural construction and stress requirements. For the wood-concrete combined member, a shearing-resistant connecting piece with good effect has not been developed at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the shearing-resistant connecting piece for the wood-concrete combined member, which combines the PZ combined pin shearing-resistant connecting piece and the toothed plate together to form a novel shearing-resistant connecting piece.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a shearing-resistant connecting piece for a wood-concrete combined member comprises a PZ-type combined pin shearing-resistant connecting piece and a toothed plate, wherein the toothed plate is fixed at the bottom of the PZ-type combined pin shearing-resistant connecting piece, a plurality of toothed holes are formed in the toothed plate, each toothed hole is correspondingly provided with a tooth for pressing the shearing-resistant connecting piece into a wood structure of the wood-concrete combined member, and a plurality of teeth are sequentially arranged to form the toothed plate.
Preferably, the toothed plate is fixed to the bottom of the PZ type combination pin shear connector by welding.
Preferably, the materials of the PZ type combined pin shear connector and the toothed plate are high-strength steel.
Further, the surfaces of the PZ type combined pin shear connector and the toothed plate are sprayed with an anti-rust coating.
Preferably, the rust inhibitive coating is a galvanized coating.
Further, the toothed plate is an aligned toothed plate, the toothed holes are in a plurality of rows, and each row of toothed holes are sequentially arranged at the same interval.
Preferably, the toothed plate has 12 rows of perforations, each row having 12 perforations.
Preferably, the teeth are 12mm in length and 1.5mm in thickness.
Compared with the prior art, the invention has the following beneficial effects: the invention skillfully combines the PZ type combined pin shearing connector and the toothed plate to form a novel shearing connector, thereby being applicable to wood-concrete combined components. The invention combines the advantages of the PZ type combined pin shearing-resistant connecting piece and the toothed plate, ensures better combined effect, widens the respective application of the PZ type combined pin shearing-resistant connecting piece and the toothed plate, has excellent static bearing performance, anti-slip performance, anti-pulling performance and fatigue performance, can well transfer shearing force between a wood board and a concrete combined member, prevents lifting of a concrete plate, and meets the requirements of structural construction and stress.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
fig. 4 is a schematic structural diagram of the present invention in practical application.
Detailed Description
The invention is described in detail below in connection with fig. 1-3. As shown in fig. 1, the invention provides a shearing connector for a wood-concrete combined member, which consists of a PZ combined pin shearing connector 1 and a toothed plate 2, wherein the toothed plate 2 is fixed at the bottom of the PZ combined pin shearing connector 1.
The PZ type combined pin shearing-resistant connecting piece (Puzzle shape composite dowel) is one of combined pins, the type combined pin can be produced by single-wire cutting, the production efficiency is high, and the static force and fatigue performance are good. Under the condition of the same structural size, the PZ type combined pin shear connector has better performance than other types of combined pin shear connectors, and can better meet the structural construction and stress requirements. The PZ type combined pin shear connector and the toothed plate are combined together to form a new shear connector, so that the shear connector is used in a wood-concrete combined member, can well transfer shearing force between two materials, prevents lifting of a concrete plate, and meets the structural requirement.
Preferably, in the present embodiment, the toothed plate 2 is welded to the bottom of the PZ-type composite pin shear connector 1, and as other embodiments, the toothed plate 2 may be fixed to the bottom of the PZ-type composite pin shear connector 1 by other manners. Be provided with a plurality of tooth hole 4 on pinion rack 2, every tooth hole 4 corresponds to be equipped with a tooth 3, and a plurality of tooth 3 arrange in proper order and form pinion rack 2, during practical application, tooth 3 is arranged in pressing the wood structure of wood-concrete composite member with the shearing connection spare, for example can directly press the shearing connection spare into the plank through professional rolling machine, and then effectively solved the installation problem of wood-thoughtlessly shearing connection spare. The teeth 3 may take the form of screws or the like suitable for use in connection with wood structures.
Preferably, in this embodiment, the toothed plate 2 is an aligned toothed plate, as shown in fig. 1-3, the toothed holes 4 are in multiple rows, and each row of toothed holes is sequentially arranged at the same interval.
Preferably, in this embodiment, the toothed plate has 12 rows of toothed holes, and each row has 12 toothed holes, and it should be noted that the number of the toothed holes can be reasonably adjusted according to the size of the toothed plate. In this embodiment, the length of the toothed plate 2 is 300mm, the width is 300mm, the thickness is 1.5mm, the length of the teeth 3 is 12mm, the thickness is 1.5mm, and experiments prove that the toothed plate with the size has higher tensile yield load. In addition, the overall length of the shear connector described herein may be adjusted accordingly depending on the size of the wood-concrete composite member, and is not limited to the dimensions described in the examples.
Preferably, in the present embodiment, the materials of the PZ type composite pin shear connector 1 and the toothed plate 2 are high-strength steel, and the surfaces thereof are sprayed with an anti-rust coating such as a zinc coating, thereby preventing the influence of metal rust on the bearing capacity.
Fig. 4 is a schematic diagram of the practical application of the present invention when applied to a specific bridge structure. In the figures, 5 represents the invention for connecting a concrete structure 6 and a wood structure 7. When the novel wood frame is used, a plurality of the novel wood frame 5 is pressed into the wood structure 7 through a professional roller press, so that shearing force between the novel wood frame 6 and the novel wood frame 7 can be well transferred, and the stress requirement of the structure is met.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art to which the present invention pertains should be made without departing from the spirit of the present invention, and all modifications and improvements fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. A shear connector for a wood-concrete composite member, characterized by: shear connector with PZ type combined pin
The toothed plate is fixed at the bottom of the PZ type combined pin shearing-resistant connecting piece;
the toothed plate is an aligned toothed plate, a plurality of rows of toothed holes are arranged, each row of toothed holes is orderly arranged at the same interval, each toothed hole is correspondingly provided with a tooth for pressing the PZ type combined pin shearing-resistant connecting piece into the wood structure of the wood-concrete combined member,
the teeth are sequentially arranged to form the toothed plate;
the length of the toothed plate is 300mm, the width of the toothed plate is 300mm, and the thickness of the toothed plate is 1.5mm;
the teeth were 12mm in length and 1.5mm in thickness.
2. The shear connector for wood-concrete composite components of claim 1, wherein: the toothed plate is fixed at the bottom of the PZ type combined pin shearing-resistant connecting piece in a welding mode.
3. The shear connector for wood-concrete composite members according to claim 1 or 2, wherein: the PZ type combined pin shear connector and the toothed plate are made of high-strength steel.
4. A shear connector for wood-concrete composite components according to claim 3, wherein: and the surfaces of the PZ type combined pin shear connector and the toothed plate are sprayed with an antirust coating.
5. The shear connector for wood-concrete composite components of claim 4, wherein: the rust-proof coating is a galvanized coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090866.0A CN109112953B (en) | 2018-09-19 | 2018-09-19 | Shearing-resistant connecting piece for wood-concrete combined component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090866.0A CN109112953B (en) | 2018-09-19 | 2018-09-19 | Shearing-resistant connecting piece for wood-concrete combined component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109112953A CN109112953A (en) | 2019-01-01 |
| CN109112953B true CN109112953B (en) | 2023-12-22 |
Family
ID=64858418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811090866.0A Active CN109112953B (en) | 2018-09-19 | 2018-09-19 | Shearing-resistant connecting piece for wood-concrete combined component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109112953B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1442148A (en) * | 1972-12-20 | 1976-07-07 | Automated Building Components | Apparatus and methods for fabricating wooden frames and the like |
| EP2058448A2 (en) * | 2007-11-12 | 2009-05-13 | Universita' degli studi di Bergamo | Tubular connector for connecting mixed wood-concrete beams |
| CN201581502U (en) * | 2009-12-24 | 2010-09-15 | 中国京冶工程技术有限公司 | Shear resisting part |
| CN201649306U (en) * | 2010-03-03 | 2010-11-24 | 国家林业局北京林业机械研究所 | Tooth plate for wood structure building |
| CN104100037A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Combined flat beam |
| CN105239672A (en) * | 2015-10-26 | 2016-01-13 | 华侨大学 | Anti-shearing pulling-resistant connecting element |
| CN205329843U (en) * | 2016-01-20 | 2016-06-22 | 南京工业大学 | Connecting system of wood-concrete combined structure |
| CN108412049A (en) * | 2018-03-05 | 2018-08-17 | 苏州科技大学 | A kind of wood-concrete combination beam shear connector push out test test specimen |
| CN208884337U (en) * | 2018-09-19 | 2019-05-21 | 华北水利水电大学 | It is a kind of for wood-concrete combined component shear connector |
-
2018
- 2018-09-19 CN CN201811090866.0A patent/CN109112953B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1442148A (en) * | 1972-12-20 | 1976-07-07 | Automated Building Components | Apparatus and methods for fabricating wooden frames and the like |
| EP2058448A2 (en) * | 2007-11-12 | 2009-05-13 | Universita' degli studi di Bergamo | Tubular connector for connecting mixed wood-concrete beams |
| CN201581502U (en) * | 2009-12-24 | 2010-09-15 | 中国京冶工程技术有限公司 | Shear resisting part |
| CN201649306U (en) * | 2010-03-03 | 2010-11-24 | 国家林业局北京林业机械研究所 | Tooth plate for wood structure building |
| CN104100037A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Combined flat beam |
| CN105239672A (en) * | 2015-10-26 | 2016-01-13 | 华侨大学 | Anti-shearing pulling-resistant connecting element |
| CN205329843U (en) * | 2016-01-20 | 2016-06-22 | 南京工业大学 | Connecting system of wood-concrete combined structure |
| CN108412049A (en) * | 2018-03-05 | 2018-08-17 | 苏州科技大学 | A kind of wood-concrete combination beam shear connector push out test test specimen |
| CN208884337U (en) * | 2018-09-19 | 2019-05-21 | 华北水利水电大学 | It is a kind of for wood-concrete combined component shear connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109112953A (en) | 2019-01-01 |
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