CN112609735A - Semi-embedded column base positioning and mounting device and construction method thereof - Google Patents
Semi-embedded column base positioning and mounting device and construction method thereof Download PDFInfo
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- CN112609735A CN112609735A CN202011492335.1A CN202011492335A CN112609735A CN 112609735 A CN112609735 A CN 112609735A CN 202011492335 A CN202011492335 A CN 202011492335A CN 112609735 A CN112609735 A CN 112609735A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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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
- E04C3/32—Columns; Pillars; Struts of metal
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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
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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Abstract
The invention provides a semi-embedded column base positioning and mounting device and a construction method thereof, and relates to the technical field of building steel structures. The semi-embedded column base comprises a concrete column vertically erected on the bottom plate and a semi-embedded steel column which is partially pre-embedded in the concrete column and partially exposed out of the top of the concrete column; exposing the top plate of the embedded steel column by 0.3-1.3 m; the length of the embedded section of the embedded steel column is greater than or equal to three times of the width of the embedded steel column. The positioning and mounting device comprises a lattice type combined frame which is vertically erected on the bottom plate and is arranged on the periphery of the concrete column; the embedded steel column is detachably and fixedly connected with the top of the lattice type combined frame. The semi-embedded column base does not need to embed the steel column into the floor of the underground floor, and effectively improves the economy of the steel column with the two-layer and three-layer steel structures in the low-intensity area. The problem of basement shaped steel concrete column oversize is solved simultaneously, effectively reduces basement frame post cross-section, avoids influencing basement service function, makes the post net arrange more nimble.
Description
Technical Field
The invention relates to a semi-embedded column base positioning and mounting device and a construction method thereof, and belongs to the technical field of building steel structures.
Background
The lower part of the steel structure building is provided with a basement, and steel columns are all required to be buried into the basement by one layer. The basement steel reinforced concrete column needs each side to expand 200 outward, leads to the basement post to be bigger than normal, influences parking stall arrangement even. For two-layer and three-layer steel structures in a low-intensity area, if a steel column is buried in a first layer of a basement, the steel quantity proportion of the steel columns in the structure is high, and the economical efficiency of the steel structures is seriously influenced.
In some projects, the steel columns adopt externally-wrapped or exposed rigid connection nodes at the top plate of the basement, and the economical efficiency of the steel structure is improved. In an industrial building with low appearance requirement, the problem of a concrete outer coating section protruding out of the ground on the ground is low; in civil buildings, the concrete outer-coated section which protrudes out of the ground is not allowed to exist, and the use space and the appearance effect inside the civil buildings are influenced. If the basement top plate is integrally covered with soil after the elevation of the basement top plate is lowered to avoid the exposure of the column base, the load of the basement top plate is increased too much.
In conclusion, the existing steel structure column base method has the problems of unsatisfactory economy, overlarge column base size or protruding out of the ground.
According to the construction specification, the construction joint of the concrete frame column is not required to be arranged between layers, and the traditional column base embedded anchor bolt construction method is not suitable for the semi-embedded column base.
The present application was made based on this.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a positioning and mounting device of a semi-embedded column base and a construction method thereof, so that the economy of two and three layers of steel structure steel columns in a low-intensity area is effectively improved by the semi-embedded column base, the problem of overlarge concrete size of a traditional steel column base basement is solved, the cross section of a basement frame column is effectively reduced, and the use function of the basement is prevented from being influenced.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a semi-embedded column base positioning and mounting device comprises a concrete column vertically erected on a bottom plate and a semi-embedded steel column which is partially pre-embedded in the concrete column and partially exposed out of the top of the concrete column; the top of the embedded steel column is exposed out of the top plate by 0.3m-1.3 m; the length of the embedded section of the embedded steel column is greater than or equal to three times of the width of the embedded steel column; the positioning and mounting device comprises a lattice type combined frame vertically erected on a bottom plate; the lattice type combined frame is arranged on the periphery of the concrete column, and the embedded steel column is detachably and fixedly connected with the top of the lattice type combined frame.
Further, the bottom plate is a basement bottom plate, the top plate is a basement top plate, and the concrete column is a basement concrete column. The semi-embedded column base is mainly suitable for basements, but not limited to basements; in order to enable the embedded steel column to be connected with the concrete column foot more stably, an end plate is arranged at the bottom of the embedded steel column, and a plurality of studs are distributed at the embedded section of the embedded steel column in a dense mode.
Further, in order to facilitate packaging and transportation, the positioning and mounting device of the invention adopts an assembly type, specifically, the lattice type combined frame comprises two top unit parts which are symmetrically assembled and mounted, and two bottom unit parts which are symmetrically assembled and mounted, and the top unit parts and the bottom unit parts are assembled and mounted up and down.
Furthermore, in order to ensure that the embedded steel column is vertically erected in the concrete column, a series of horizontal rods and vertical rods are arranged to ensure the verticality, specifically, each top unit part comprises two first vertical rods arranged in parallel, a first horizontal rod connected with the two first vertical rods and positioned at one end of the first vertical rods, a second vertical rod vertically erected on the first horizontal rod and parallel to the first vertical rods, a second horizontal rod vertically arranged on the second vertical rods, a third horizontal rod arranged at the intersection of the first horizontal rod and the first vertical rods and parallel and homodromous to the second horizontal rod, and a connecting lug plate arranged at the end part of the second horizontal rod; steel column ear plates matched with the connecting ear plates are arranged on two sides of the embedded steel column;
each bottom unit part comprises two other first vertical rods arranged in parallel, another first horizontal rod connected with and perpendicular to the other two first vertical rods, another two third vertical rods arranged at the intersection of the first horizontal rod and the first vertical rods, and a base plate arranged at the bottoms of the other two first vertical rods, and the perpendicularity can be adjusted through the base plate.
The end part of the third horizontal rod, the bottom of the first upright rod of the top unit part and the top of the first upright rod of the bottom unit part are all provided with an assembly connecting structure; the two top unit parts are assembled and connected through a third horizontal rod, and the top unit parts and the bottom unit parts are assembled and connected through first vertical rods.
Further, in order to increase the applicable height and bearing capacity of the positioning and mounting device, a first horizontal rod is added between two first vertical rods of the top unit part, and a third horizontal rod is correspondingly added at an intersection point.
Furthermore, in order to facilitate field assembly operation, improve the installation efficiency and facilitate disassembly, the assembly connection structure adopts a sleeve type connection, wherein the widths of the first vertical rod of the top unit part and the first vertical rod of the bottom unit part are different, and the widths of the third horizontal rods of the two top unit parts are different; the first vertical rods and the third horizontal rods are connected through a sleeve pipe and fixed through bolts.
A construction method of a semi-embedded column base comprises the following steps:
after a basement bottom plate is formed, transporting all top unit parts and all bottom unit parts to a project site;
step two, manually assembling the top unit part and the bottom unit part into a lattice type combined frame on site;
step three, completing basement concrete column formwork support, and positioning the plane position of the mounting device in place;
adjusting the verticality of the bottom of the positioning and mounting device to enable a second horizontal rod connected with the embedded steel column to be adjusted to a horizontal position;
connecting the embedded steel column with a positioning and mounting device in place to ensure the perpendicularity of the embedded steel column;
step six, pouring concrete into the mould, removing the positioning and mounting device when the concrete reaches proper strength, and cutting off the steel column ear plates of the pre-buried steel columns;
and step seven, dismantling the positioning and mounting device and decomposing the device into all unit parts.
Furthermore, in order to facilitate the pouring of the concrete column feet in the early stage and the disassembly of the positioning and mounting device in the later stage, the height of the steel column ear plate is higher than the height of the concrete pouring finished surface.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) according to the semi-embedded column base, the embedded length of the embedded steel column can meet 3 times of the width of the steel column, the steel column does not need to be embedded into the floor of the underground floor, and the economical efficiency of the steel column with the two-layer steel structure and the three-layer steel structure in the low-intensity area is effectively improved.
(2) The semi-embedded column base solves the problem that a basement section steel concrete column needs to be expanded by 200mm (the traditional steel column base basement concrete column base is overlarge in size), effectively reduces the section of a basement frame column, avoids influencing the use function of a basement, enables the arrangement of a column network to be more flexible, and solves the problem that an anchor bolt cannot be embedded between layers because the frame column needs to be poured for the second time to form a construction joint.
(3) The positioning and mounting device has moderate weight, can be transported according to unit parts, is manually transported and assembled on site, does not need to occupy too much site hoisting equipment, can be transported and recycled, has low measure cost and obvious economic benefit.
(4) The positioning and mounting device is detachable, so that the positioning and mounting device can be recycled, the utilization rate is improved, the cost is saved, and the economic benefit is improved.
Drawings
FIG. 1 is a first schematic structural view of a semi-embedded column shoe and positioning and mounting device according to the present embodiment;
fig. 2 is a schematic structural diagram of a semi-embedded column base and a positioning and mounting device according to the present embodiment (the whole embedded steel column is shown);
FIG. 3 is a front view of a semi-embedded column shoe and locating mounting device of this embodiment;
FIG. 4 is a left side view of a semi-embedded column shoe and locating mounting device of this embodiment;
fig. 5 is a schematic structural view of a top unit member of the semi-embedded toe positioning and mounting device of the present embodiment;
fig. 6 is a schematic structural diagram of a bottom unit component of the semi-embedded column base positioning and mounting device of the present embodiment.
Description of the labeling: the concrete column concrete slab comprises a base plate-1, a first vertical rod-2, a first horizontal rod-3, a second vertical rod-4, a second horizontal rod-5, a connecting lug plate-6, a steel column lug plate-7, a pre-buried steel column-8, a basement concrete column-9, a stud-10, an end plate-11 and a third horizontal rod-12.
Detailed Description
In order to make the technical means and technical effects achieved by the technical means of the present invention more clearly and more perfectly disclosed, the following embodiments are provided, and the following detailed description is made with reference to the accompanying drawings:
as shown in fig. 1, a semi-embedded column shoe of the present embodiment includes a concrete column standing on a bottom plate, and a semi-embedded steel column partially pre-embedded in the concrete column and partially exposed from the top of the concrete column; the top of the embedded steel column is exposed out of the top plate by 0.3m-1.3m, and the length of the embedded section of the embedded steel column is greater than or equal to three times of the width of the embedded steel column. Therefore, the steel column embedded section top mark can be ensured to be higher than the structural surface of the floor slab, and the steel column embedded section top mark can not be too high, so that the influence on the field welding of workers is avoided. Therefore, the embedding length of the semi-embedded column base can meet 3 times of the width of the steel column, the steel column does not need to be embedded into the floor of the underground floor, and the economical efficiency of the steel column with the two-layer steel structure and the three-layer steel structure in the low-intensity area is effectively improved. The concrete column of inside no steel column section can confirm the cross section according to interior power design value, need not every side outsourcing 200mm, and variable cross section is handled, has consequently solved basement shaped steel concrete column and has need expand 200 mm's problem outward, effectively reduces basement frame post cross section, avoids influencing basement service function, makes the post net arrange more nimble.
Preferably, the bottom plate is basement bottom plate, and the roof is basement roof, and the concrete column is basement concrete column.
In the preferred embodiment, the bottom of the embedded steel column is provided with an end plate, and the embedded section of the embedded steel column is densely distributed with a plurality of pegs.
As shown in fig. 1 to 4, a semi-embedded column base positioning and mounting device of the present embodiment includes a lattice type combined frame erected on a bottom plate; the lattice type combined frame is arranged on the periphery of the concrete column, and the embedded steel column is detachably and fixedly connected with the top of the lattice type combined frame.
Preferably, the lattice type combined frame comprises two top unit parts which are symmetrically combined and installed and two bottom unit parts which are symmetrically combined and installed, and the top unit parts and the bottom unit parts are combined and installed up and down. The bottom unit part and the top unit part are welded, assembled and molded in factories and used as basic units for transportation, and the combined type is convenient for packaging and transportation. The embedded steel column embedded section weight and the bottom unit component and the top unit component weight are controlled, and the manual assembly and installation device can be manually assembled by two workers on site.
As shown in fig. 5 and 6, in the preferred embodiment, each top unit includes two first vertical rods arranged in parallel, a first horizontal rod connected to the two first vertical rods and located at one end of the first vertical rods, a second vertical rod vertically standing on the first horizontal rod and parallel to the first vertical rod, a second horizontal rod vertically arranged on the second vertical rod, a third horizontal rod arranged at the intersection of the first horizontal rod and the first vertical rod and parallel to and in the same direction as the second horizontal rod, and a connecting ear plate arranged at the end of the second horizontal rod; steel column ear plates matched with the connecting ear plates are arranged on two sides of the embedded steel columns; the steel column otic placode in this embodiment adopts the single otic placode, and the connection otic placode adopts the double-ear board, and the single otic placode is fixed through bolt tightening after inserting the double-ear board, realizes dismantling fixed connection. Because of the embedded section length of the pre-embedded steel column and the height of the basement are different, the requirements of different projects can be met by adjusting the height of the steel column ear plate at the embedded steel column and the length of the embedded steel column. Because the steel column specification is different, the requirement of different projects is satisfied with the otic placode length of pre-buried section steel column connection in the accessible regulation.
Each bottom unit part comprises another two first vertical rods arranged in parallel, another first horizontal rod connected with and vertical to the other two first vertical rods, another two third horizontal rods arranged at the intersection of the first horizontal rods and the first vertical rods and vertical to the first horizontal rods, and base plates arranged at the bottoms of the other two first vertical rods;
the end part of the third horizontal rod, the bottom of the first upright rod of the top unit part and the top of the first upright rod of the bottom unit part are all provided with an assembly connecting structure; the two top unit parts are assembled and connected through a third horizontal rod, and the top unit parts and the bottom unit parts are assembled and connected through first vertical rods.
Preferably, in this embodiment, a first horizontal rod is added between two first vertical rods of the top unit part, and a third horizontal rod is correspondingly added at the intersection point.
In the preferred embodiment, the assembly connection structure adopts a sleeve type connection, wherein the widths of the first vertical rod of the top unit part and the first vertical rod of the bottom unit part are different, and the widths of the third horizontal rods of the two top unit parts are different; the first vertical rods and the third horizontal rods are connected through a sleeve pipe and fixed through bolts.
The construction method of the semi-embedded column base of the embodiment comprises the following steps:
after a basement bottom plate is formed, transporting all top unit parts and all bottom unit parts to a project site;
step two, manually assembling the top unit part and the bottom unit part into a lattice type combined frame on site;
step three, completing basement concrete column formwork support, and positioning the plane position of the mounting device in place;
adjusting the verticality of the bottom of the positioning and mounting device to enable a second horizontal rod connected with the embedded steel column to be adjusted to a horizontal position;
connecting the embedded steel column with a positioning and mounting device in place to ensure the perpendicularity of the embedded steel column;
step six, pouring concrete into the mould, unloading the steel column (dismantling the positioning and mounting device) when the concrete reaches proper strength, and cutting off the steel column ear plates of the pre-buried steel column;
and step seven, dismantling the positioning and mounting device and decomposing the device into all unit parts.
The preferred of this embodiment, steel column otic placode mark height is higher than concrete placement and accomplishes the face elevation, prevents that column base location installation device from influencing basement concrete column and pour and later stage steel column otic placode cutting.
The above description is provided for the purpose of further elaboration of the technical solutions provided in connection with the preferred embodiments of the present invention, and it should not be understood that the embodiments of the present invention are limited to the above description, and it should be understood that various simple deductions or substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and all such alternatives are included in the scope of the present invention.
Claims (8)
1. The utility model provides a half formula column base location installation device that burys which characterized in that: the semi-embedded column base comprises a concrete column vertically erected on the bottom plate and a semi-embedded steel column which is partially pre-embedded in the concrete column and partially exposed out of the top of the concrete column; the top of the embedded steel column is exposed out of the top plate by 0.3m-1.3 m; the length of the embedded section of the embedded steel column is greater than or equal to three times of the width of the embedded steel column; the positioning and mounting device comprises a lattice type combined frame vertically erected on a bottom plate; the lattice type combined frame is arranged on the periphery of the concrete column, and the embedded steel column is detachably and fixedly connected with the top of the lattice type combined frame.
2. The semi-embedded toe positioning and mounting apparatus of claim 1, further comprising: the bottom plate is a basement bottom plate, the top plate is a basement top plate, and the concrete column is a basement concrete column; the bottom of the embedded steel column is provided with an end plate, and a plurality of pegs are densely distributed at the embedded section of the embedded steel column.
3. The semi-embedded toe positioning and mounting apparatus of claim 1, further comprising: the lattice type combined frame comprises two top unit parts and two bottom unit parts, wherein the two top unit parts are symmetrically combined and installed, the two bottom unit parts are symmetrically combined and installed, and the top unit parts and the bottom unit parts are combined and installed up and down.
4. A semi-embedded toe positioning and mounting apparatus as claimed in claim 3, wherein:
each top unit part comprises two first vertical rods arranged in parallel, a first horizontal rod connected with the two first vertical rods and positioned at one end of the first vertical rods, a second vertical rod vertically standing on the first horizontal rod and parallel to the first vertical rods, a second horizontal rod vertically arranged on the second vertical rods, a third horizontal rod arranged at the intersection of the first horizontal rod and the first vertical rods and parallel to and in the same direction as the second horizontal rod, and a connecting lug plate arranged at the end part of the second horizontal rod; steel column ear plates matched with the connecting ear plates are arranged on two sides of the embedded steel column;
each bottom unit part comprises another two first vertical rods arranged in parallel, another first horizontal rod connected with and vertical to the other two first vertical rods, another two third horizontal rods arranged at the intersection of the first horizontal rods and the first vertical rods and vertical to the first horizontal rods, and base plates arranged at the bottoms of the other two first vertical rods;
the end part of the third horizontal rod, the bottom of the first upright rod of the top unit part and the top of the first upright rod of the bottom unit part are all provided with an assembly connecting structure; the two top unit parts are assembled and connected through a third horizontal rod, and the top unit parts and the bottom unit parts are assembled and connected through first vertical rods.
5. The semi-embedded toe positioning and mounting device of claim 4, wherein: a first horizontal rod is additionally arranged between two first vertical rods of the top unit part, and a third horizontal rod is correspondingly additionally arranged at an intersection point.
6. The semi-embedded toe positioning and mounting device of claim 4, wherein: the assembly and connection structure adopts sleeve type connection, wherein the widths of the first upright rods of the top unit part and the first upright rods of the bottom unit part are different, and the widths of the third horizontal rods of the two top unit parts are different; the first vertical rods and the third horizontal rods are connected through a sleeve pipe and fixed through bolts.
7. A construction method of a semi-embedded column base is characterized by comprising the following steps:
after a basement bottom plate is formed, transporting all top unit parts and all bottom unit parts to a project site;
step two, manually assembling the top unit part and the bottom unit part into a lattice type combined frame on site;
step three, completing basement concrete column formwork support, and positioning the plane position of the mounting device in place;
adjusting the verticality of the bottom of the positioning and mounting device to enable a second horizontal rod connected with the embedded steel column to be adjusted to a horizontal position;
connecting the embedded steel column with a positioning and mounting device in place to ensure the perpendicularity of the embedded steel column;
step six, pouring concrete into the mould, removing the positioning and mounting device when the concrete reaches proper strength, and cutting off the steel column ear plates of the pre-buried steel columns;
and step seven, dismantling the positioning and mounting device and decomposing the device into all unit parts.
8. The construction method of a semi-embedded column shoe according to claim 7, wherein: the height of the steel column ear plate is higher than the elevation of the concrete pouring completion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492335.1A CN112609735B (en) | 2020-12-17 | 2020-12-17 | Semi-embedded column base positioning and mounting device and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492335.1A CN112609735B (en) | 2020-12-17 | 2020-12-17 | Semi-embedded column base positioning and mounting device and construction method thereof |
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| CN112609735A true CN112609735A (en) | 2021-04-06 |
| CN112609735B CN112609735B (en) | 2022-07-22 |
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| CN113217704A (en) * | 2021-04-13 | 2021-08-06 | 浙江万合能源环境科技有限公司 | Accurate positioning and embedding method for vertical embedded pipe for natural underground operation |
| CN116607555A (en) * | 2023-06-30 | 2023-08-18 | 湖北工建集团第三建筑工程有限公司 | Plug-in steel column base and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN112609735B (en) | 2022-07-22 |
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