CN111608325A - Shear key mounting structure and method - Google Patents
Shear key mounting structure and method Download PDFInfo
- Publication number
- CN111608325A CN111608325A CN202010624232.XA CN202010624232A CN111608325A CN 111608325 A CN111608325 A CN 111608325A CN 202010624232 A CN202010624232 A CN 202010624232A CN 111608325 A CN111608325 A CN 111608325A
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- CN
- China
- Prior art keywords
- shear key
- column
- hole
- column base
- bottom plate
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- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2463—Connections to foundations
Abstract
The application provides a mounting structure and a mounting method of a shear key, wherein the mounting structure of the shear key comprises a pillar, a pedestal bottom plate, a pedestal bolt, a shear key preformed hole, a foundation short column and a shear key; the column base plate is fixedly connected to the column, the column base bolt is embedded in the foundation stub, the column base plate is connected to the column base bolt, the shear key reserved hole is formed in the foundation stub, the shear key is accommodated in the shear key reserved hole and protrudes out of the opening of the shear key reserved hole, and the column base plate is provided with a mounting hole through which the shear key penetrates to extend into the column. Insert the column base bottom plate through the shear key, and need not to weld the shear key below the column base bottom plate in advance, make the effective use height of modularization building can be higher to when the modularization building is assembled in the mill, support the modularization building by the column base bottom plate, avoid welded shear key in advance to be used for supporting the problem that the modularization building is difficult to keep stable.
Description
Technical Field
The application relates to a building part, in particular to a mounting structure and a mounting method of a shear key.
Background
It is clearly specified in the steel structure design standards that the exposed pedestal bolt is not suitable for receiving the horizontal reaction force at the bottom of the pedestal, which is received by the friction between the bottom plate and the concrete foundation or by the provision of shear keys. In addition, shear failure of the stud occurs in the concrete foundation and is not easily found and often difficult to take reinforcement measures. The design of the steel structure shear key is very important in the whole steel structure design. The shear key is usually welded on the horizontal steel plate of the bottom surface of the column base by using thicker channel steel or I-steel, and is buried in a shear groove reserved in the foundation, and the shear key is generally poured for the second time by using micro-expansion concrete.
For installations where the shear key is pre-welded to a separate member (e.g., a post), the length of the shear key generally has no effect. However, for modular buildings, pre-welded shear keys affect the effective use height of the modular building in case the overall height of the modular building is limited due to transportation. Because the shear key size is relatively less, some are even angle steel or welding cross. When the modular building is assembled in a factory, the pre-welded shear keys are difficult to stably support the whole modular building, and an additional support structure is also needed to ensure the stability of the whole structure.
Disclosure of Invention
In order to solve the influence of the pre-welding installation of the shear key on the effective use height of the modular building and the influence of the pre-welding shear key on the stability of the modular building in the assembling process of the modular building, the application discloses an installation structure and an installation mode of the shear key.
The application provides a mounting structure of a shear key, which comprises a pillar, a pedestal bottom plate, a pedestal bolt, a shear key preformed hole, a foundation short column and a shear key;
the column base plate is fixedly connected to the column, the column base bolt is embedded in the foundation stub, the column base plate is connected to the column base bolt, the shear key reserved hole is formed in the foundation stub, the shear key is accommodated in the shear key reserved hole and protrudes out of the opening of the shear key reserved hole, and the column base plate is provided with a mounting hole through which the shear key penetrates to extend into the column.
Preferably, the mounting structure further comprises a support member disposed below the shear key, the shear key being supported by the support member.
Preferably, the top surface of the support has an area smaller than that of the bottom surface of the shear key, which is partially in contact with the support.
Preferably, the mounting structure further includes a nut, the column base bottom plate is connected to the column base bolt through the nut, the nut includes an upper nut and a lower nut, and the upper nut and the lower nut are respectively located at upper and lower sides of the column base bottom plate.
Preferably, a secondary grouting grout is provided between the top surface of the foundation stub and the column shoe bottom plate.
Preferably, the shear key is fixed to the shear key prepared hole through secondary grouting by using grouting slurry for secondary grouting in the shear key prepared hole.
Preferably, the shear key is in a cubic column shape, the mounting hole is a rectangular hole, and the shear key preformed hole is a rectangular hole.
Preferably, the size of the mounting hole is larger than that of the shear key.
The present application also provides a shear key installation method for implementing the shear key installation structure according to any one of the above technical solutions, including:
and placing the shear key in the shear key reserved hole on a modular building installation site, and inserting the shear key into the installation hole when the column base bottom plate is installed on the foundation short column.
Preferably, the foundation stub is a concrete or reinforced concrete column prefabricated in a factory or precast in an installation site,
grouting material into the shear key preformed hole and a gap between the column base bottom plate and the top surface of the foundation short column on a modular building installation site, so that the shear key placed into the shear key preformed hole is fixed.
Insert the column base bottom plate through the shear key, and need not to weld the shear key below the column base bottom plate in advance, make the effective use height of modularization building can be higher to when the modularization building is assembled in the mill, support whole modularization building by the column base bottom plate, avoided the problem that the welded shear key is used for supporting the modularization building in advance and is difficult to keep stable.
Drawings
Fig. 1 is a schematic view of a mounting structure of a shear key provided in the present application.
Detailed Description
Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that the detailed description is intended only to teach one skilled in the art how to practice the application, and is not intended to be exhaustive or to limit the scope of the application.
As shown in fig. 1, the present application provides a shear key installation structure, which includes a pillar 1, a column shoe bottom plate 2, a column shoe bolt 3, a nut 4, a shear key prepared hole 5, a foundation stub 6, a shear key 7, and a support 8.
The column 1 may be a column, for example, may be made of a square tubular column. The column base bottom plate 2 is connected to the lower end of the column 1. the column 1 and the column base bottom plate 2 can be fixedly connected by welding, for example. The column base plate 2 is provided with a mounting hole 21, and the mounting hole 21 may be formed in the same or similar shape as the shear key 7, for example, the shear key 7 has a square column shape, and the mounting hole 21 has a rectangular hole. The size of the mounting hole 21 may be slightly larger than that of the shear key 7, so that the shear key 7 can be inserted into the mounting hole 21 within a certain position error range, for example, the side length of the mounting hole 21 is 4 mm larger than the corresponding side length of the shear key 7.
The foundation stub 6 may represent a concrete or reinforced concrete stub that is precast in situ or that has been precast in the factory before the column 1 and the column shoe bottom plate 2 are transported to the site. The dimensions of the foundation stub 6 are determined according to the dimensions of the column 1 and the column shoe base plate 2, for example, if the dimensions of the column 1 are 200 x 200mm, then the dimensions of the foundation stub 6 may be 600 x 600 mm. The shear key preformed hole 5 is reserved in the foundation short column 6, the size of the shear key preformed hole 5 is larger than that of the shear key 7, and the shear key preformed hole 5 can be a rectangular hole.
The column base bolt 3 is pre-buried in the foundation stub 6, and the column base bolt 3 is upwards extended by the top surface of foundation stub 6, and column base bolt 3 passes column base bottom plate 2, and column base bottom plate 2 is connected to column base bolt 3 through nut 4.
The nut 4 includes upper and lower nuts of the column shoe bolt 3, and the nut 4 is used to connect the column shoe base plate 2 to the column shoe bolt 3. The column base bottom plate 2 can be leveled and elevated by rotating the lower nut, and the upper nut is screwed after the leveling and the elevation are finished, so that the column base bottom plate 2 is fixedly connected to the column base bolt 3.
The support member 8 is located between the bottom of the shear key prepared hole 5 and the shear key 7, the support member 8 does not protrude from the opening of the shear key prepared hole 5, and the support member 8 is used for supporting the shear key 7. The top surface of the support 8 has an area smaller than that of the bottom surface of the shear key 7 so that the bottom surface of the shear key 7 is partially in contact with the support 8. Gaps are left between the shear keys 7 and the bottoms (of the shear key prepared holes 5) of the prefabricated foundation stub 6 through the support members 8, and the gaps below the shear keys 7 are filled with a secondary grouting material, which can fix the shear keys 7 after curing. The grouting material can be filled below the shear key 7 through the support member 8, and the direct contact between the shear key 7 and the prefabricated foundation stub 6 to form a gap is avoided. The support 8 may be a steel member.
A space for secondary grouting is provided between the column base bottom plate 2 and the foundation stub 6, and a represents a two-layer grouting thickness reserved between the column base bottom plate 2 and the foundation stub 6 (foundation top surface), and the thickness a is preferably not less than 50 mm. B denotes the dimension of the support 8 in the direction perpendicular to the column shoe sole 2, for example 50 mm.
The present application also provides a shear key installation method for the above shear key installation structure, which may include the steps described below.
And manufacturing a foundation short column 6, and reserving a shear key reserved hole 5 in the foundation short column 6, wherein the shear key reserved hole 5 is used for accommodating a shear key 7.
The support 8 is placed in the shear key prepared hole 5.
And placing the shear key 7 in the shear key preformed hole 5, pressing the shear key 7 on the support 8, and enabling the shear key 7 to protrude out of the top surface of the foundation short column 6.
And hoisting the modular building to a preset position, aligning the mounting hole 21 of the column base bottom plate 2 of the modular building with the shear key 7, lowering the height of the modular building, and inserting the shear key 7 into the mounting hole 21.
The column foot bottom plate 2 is supported by a lower nut of a nut 4, the level and elevation of the column foot bottom plate 2 are adjusted through the height of the lower nut of the nut 4, and an upper nut of the nut 4 is screwed down to fix the column foot bottom plate 2 after the adjustment is in place.
Grouting material is poured into the gap between the column base bottom plate 2 and the top surface of the foundation short column 6 and the shear key preformed hole 5, maintenance is carried out, and after the grouting material is cured, the shear key 7 embedded into the shear key preformed hole 5 is fixed.
While the present application has been described with reference to exemplary embodiments, it is to be understood that the present application is not limited to the disclosed exemplary embodiments. Various modifications and alterations of the above-described embodiments may be made by those skilled in the art in light of the teachings of this application without departing from the scope thereof.
Claims (10)
1. The mounting structure of the shear key is characterized by comprising a pillar (1), a pedestal bottom plate (2), a pedestal bolt (3), a shear key preformed hole (5), a foundation short column (6) and a shear key (7);
the column base bottom plate (2) is fixedly connected to the column (1), the column base bolt (3) is pre-buried in the foundation short column (6), the column base bottom plate (2) is connected to the column base bolt (3), the shear key preformed hole (5) is formed in the foundation short column (6), the shear key (7) is accommodated in the shear key preformed hole (5) and protrudes out of an opening of the shear key preformed hole (5), the column base bottom plate (2) is provided with a mounting hole (21), and the shear key (7) penetrates through the mounting hole (21) and extends into the column (1).
2. A shear key mounting structure according to claim 1, further comprising a support member (8), the support member (8) being disposed below the shear key (7), the shear key (7) being supported by the support member (8).
3. A shear key mounting structure according to claim 2, wherein the top surface of the support (8) has an area smaller than that of the bottom surface of the shear key (7), the bottom surface of the shear key (7) being partially in contact with the support (8).
4. A shear key mounting structure according to claim 1, wherein the mounting structure further comprises a nut (4), the column base plate (2) is connected to the column base bolt (3) by the nut (4), and the nut (4) comprises an upper nut and a lower nut, which are respectively located at upper and lower sides of the column base plate (2).
5. A shear key mounting structure according to claim 1, wherein a secondary grouting grout is provided between the top surface of the foundation stub (6) and the column shoe bottom plate (2).
6. A shear key mounting structure according to claim 1, wherein the shear key prepared hole (5) has a secondary grouting grout therein, and the shear key (7) is fixed to the shear key prepared hole (5) by the secondary grouting.
7. A shear key mounting structure according to any one of claims 1 to 6, wherein the shear key (7) has a cubic column shape, the mounting hole (21) is a rectangular hole, and the shear key-prepared hole (5) is a rectangular hole.
8. A shear key mounting structure according to any one of claims 1 to 6, wherein the size of the mounting hole (21) is larger than the size of the shear key (7).
9. A shear key installation method for implementing the shear key installation structure of any one of claims 1 to 8, the shear key installation method comprising:
and placing the shear key (7) in the shear key preformed hole (5) at a modular building installation site, and inserting the shear key (7) into the installation hole (21) when the column base plate (2) is installed on the foundation short column (6).
10. The method of installing a shear key according to claim 9,
the foundation short column (6) is a concrete or reinforced concrete column which is prefabricated in a factory or is precast in an installation site,
grouting material is poured into the shear key preformed hole (5) and a gap between the column base bottom plate (2) and the top surface of the foundation short column (6) on a modular building installation site, so that the shear key (7) placed into the shear key preformed hole (5) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624232.XA CN111608325A (en) | 2020-07-01 | 2020-07-01 | Shear key mounting structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624232.XA CN111608325A (en) | 2020-07-01 | 2020-07-01 | Shear key mounting structure and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111608325A true CN111608325A (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010624232.XA Pending CN111608325A (en) | 2020-07-01 | 2020-07-01 | Shear key mounting structure and method |
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| CN (1) | CN111608325A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089500A (en) * | 2021-05-18 | 2021-07-09 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113789850A (en) * | 2021-09-22 | 2021-12-14 | 杭萧钢构(广东)有限公司 | Shear resistant structure and manufacturing method |
| CN113914350A (en) * | 2021-10-26 | 2022-01-11 | 中交第四航务工程勘察设计院有限公司 | Prefabricated concrete foundation structure and installation method thereof |
| CN114439245A (en) * | 2022-02-25 | 2022-05-06 | 上海奉贤建设发展（集团）有限公司 | Intelligent integral construction method for member large-span portal rigid frame |
| CN115162615A (en) * | 2022-06-21 | 2022-10-11 | 中交一公局集团有限公司 | Steel construction installation column foot mounting structure |
-
2020
- 2020-07-01 CN CN202010624232.XA patent/CN111608325A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089500A (en) * | 2021-05-18 | 2021-07-09 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113089500B (en) * | 2021-05-18 | 2022-05-24 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113789850A (en) * | 2021-09-22 | 2021-12-14 | 杭萧钢构(广东)有限公司 | Shear resistant structure and manufacturing method |
| CN113789850B (en) * | 2021-09-22 | 2023-03-10 | 杭萧钢构(广东)有限公司 | Manufacturing method of shear-resistant structure |
| CN113914350A (en) * | 2021-10-26 | 2022-01-11 | 中交第四航务工程勘察设计院有限公司 | Prefabricated concrete foundation structure and installation method thereof |
| CN114439245A (en) * | 2022-02-25 | 2022-05-06 | 上海奉贤建设发展（集团）有限公司 | Intelligent integral construction method for member large-span portal rigid frame |
| CN115162615A (en) * | 2022-06-21 | 2022-10-11 | 中交一公局集团有限公司 | Steel construction installation column foot mounting structure |
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