CN113107082B - Construction method of steel triangular support - Google Patents
Construction method of steel triangular support Download PDFInfo
- Publication number
- CN113107082B CN113107082B CN202110455387.XA CN202110455387A CN113107082B CN 113107082 B CN113107082 B CN 113107082B CN 202110455387 A CN202110455387 A CN 202110455387A CN 113107082 B CN113107082 B CN 113107082B
- Authority
- CN
- China
- Prior art keywords
- steel box
- box girder
- steel
- grouting
- hole
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
-
- 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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a construction method of a steel triangular support, which comprises the following steps: firstly, prefabricating a first steel box girder and a second steel box girder, wherein the first steel box girder is provided with a grouting hole, a grout overflow hole and a grout overflow observation hole; secondly, welding the upper port of the second steel box girder to the right part of the first steel box girder; thirdly, hoisting the first steel box girder and the second steel box girder to a designed height, welding the left end of the first steel box girder on an embedded steel box column of the frame column, and welding the lower port of the second steel box girder on the embedded steel box column below the first steel box girder; and fourthly, penetrating the grouting pipe into the inner cavity of the second steel box girder, and injecting micro-expansion concrete into the inner cavity of the second steel box girder until grout overflows from the grout overflow hole, and stopping grouting. According to the invention, the grouting is carried out from the joint of the second steel box girder and the first steel box girder, the first steel box girder provides an operation surface for grouting, the construction difficulty is reduced, the close fit between the first steel box girder and the second steel box girder can be ensured, and the connection stability is improved.
Description
Technical Field
The invention relates to a steel triangular support grouting technology, in particular to a construction method of a steel triangular support.
Background
In recent years, the application of the steel triangular supports in the building field is more and more extensive, for example, the steel triangular supports are generally arranged at the joints of a tower and a connecting main body so as to improve the stability of the connecting main body. The steel triangular supports are mostly box-shaped structures and comprise horizontal steel box girders and inclined steel box girders, and the horizontal steel box girders, the inclined steel box girders and steel box pillars in the vertical walls or the vertical columns are welded together to form the triangular supports. In addition, when the load borne by the steel triangular supports is large, micro-expansion concrete is usually poured into the inclined steel box girder so as to improve the bearing capacity of the inclined steel box girder.
At present, the conventional construction method of the steel triangular supports is that after the construction of box girder columns of upright columns is completed, horizontal steel box girders and inclined steel box girders are lifted to the designed positions for welding, and after the welding is completed, micro-expansion concrete is poured into the inner cavities of the inclined steel box girders through grouting holes in the inclined steel box girders. However, this construction method has the following technical problems in actual construction: firstly, a horizontal steel box girder and an inclined steel box girder need to be welded together and respectively welded on a steel box column at high altitude, and the welding workload is large; secondly, an overhanging platform needs to be additionally erected due to lack of an operation surface when concrete is poured, so that the construction difficulty is increased; moreover, the hole on the inclined plane of the inclined steel box girder is filled with the liquid, so that the close attachment of the inclined steel box girder and the horizontal steel box girder cannot be guaranteed, a gap is easily formed at the joint of the inclined steel box girder and the horizontal steel box girder, and the connection stability is poor.
Disclosure of Invention
The invention aims to provide a construction method of a steel triangular support, which can reduce the workload of high-altitude welding, ensure the tight connection of a first steel box girder and a second steel box girder and improve the structural stability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the construction method of the steel triangular support comprises the following steps:
firstly, prefabricating a first steel box girder and a second steel box girder, wherein a pair of grouting holes are symmetrically formed in the right part of the first steel box girder up and down, grout overflow holes are formed in the right part of a bottom steel plate of the first steel box girder at intervals, and grout overflow observation holes are formed in the side wall of the first steel box girder; the second steel box girder is an inclined steel box girder, the upper port of the second steel box girder is horizontally arranged, and the lower port of the second steel box girder is vertically arranged;
welding the upper port of the second steel box girder to the right part of the bottom steel plate of the first steel box girder, and ensuring that the grouting hole and the grout overflow hole are both communicated with the inner cavity of the second steel box girder;
thirdly, hoisting the first steel box girder and the second steel box girder which are welded together to a designed height, welding the left end of the first steel box girder on an embedded steel box column of the frame column, and welding the lower port of the second steel box girder on the embedded steel box column below the first steel box girder, so that the first steel box girder, the second steel box girder and the embedded steel box column form a steel triangular support;
and fourthly, penetrating the grouting pipe into the inner cavity of the second steel box girder from top to bottom through the grouting hole, and injecting micro-expansion concrete into the inner cavity of the second steel box girder until grout overflows from the grout overflow hole, and stopping grouting.
In a more preferred embodiment of the present invention, the diameter of the grouting hole is 80mm to 120mm, and the grouting hole is located at the center of the upper end opening of the second steel box girder.
In a more preferred embodiment of the present invention, the height difference between the grout outlet observation hole and the bottom steel plate of the first steel box girder is 10 mm to 20 mm.
In a more preferred embodiment of the present invention, the aperture of the grout outlet is 20mm to 30mm, and the aperture of the grout outlet is 20mm to 30 mm.
In a more preferred embodiment of the present invention, the number of the grout holes is four, and the four grout holes correspond to four corners of the upper end opening of the second steel box girder up and down.
The invention has the advantages that the welding operation of the first steel box girder and the second steel box girder is completed on the ground, thereby reducing the overhead welding operation amount; meanwhile, grouting is performed from the joint of the second steel box girder and the first steel box girder, the grouting pipe enters the second steel box girder through the first steel box girder, the first steel box girder provides an operation surface for grouting, an overhanging platform does not need to be additionally erected during construction, construction difficulty is reduced, close fitting between the first steel box girder and the second steel box girder can be ensured, and connection stability is improved.
Drawings
FIG. 1 is a construction drawing of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and back … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly. It should also be noted that the description herein as relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in FIG. 1, the construction method of the steel triangular support comprises the following steps:
firstly, prefabricating a first steel box girder 1 (namely a horizontal steel box girder) and a second steel box girder 2 (namely an inclined steel box girder), wherein the right part of the first steel box girder 1 is provided with a pair of grouting holes with the aperture of 80-120 mm in an up-and-down symmetrical manner, the right part of a bottom steel plate of the first steel box girder 1 is provided with four grout overflow holes 3 with the aperture of 20-30 mm at intervals, and the side wall of the first steel box girder 1 is provided with a grout overflow observation hole 4 with the aperture of 20-30 mm; the second steel box girder 2 is an inclined steel box girder, the upper port of the second steel box girder 2 is horizontally arranged, and the lower port of the second steel box girder is vertically arranged;
secondly, welding the upper port of the second steel box girder 2 at the right part of the bottom steel plate of the first steel box girder 1 to reduce the overhead welding workload, as shown in fig. 1 specifically; during welding, the grouting holes are ensured to be positioned at the central position of the upper port of the second steel box girder 2, four grout overflow holes 3 in the bottom steel plate of the first steel box girder 1 vertically correspond to the upper port of the second steel box girder 2, each corner of the upper port of the second steel box girder 2 corresponds to one grout overflow hole 3, the first steel box girder 1 provides an operation space for the pouring of the second steel box girder 2, the pouring of the second steel box girder 2 can be realized without additionally erecting an overhanging platform, and the construction difficulty is reduced;
thirdly, hoisting the first steel box girder 1 and the second steel box girder 2 which are welded together to a designed height, welding the left end of the first steel box girder 1 on an embedded steel box column 5 of a frame column 6, welding the lower port of the second steel box girder 2 on the embedded steel box column 5 positioned below the first steel box girder 1, and enabling the first steel box girder 1, the second steel box girder 2 and the embedded steel box column 5 to enclose a triangular support to improve structural stability;
fourthly, penetrating a grouting pipe into the inner cavity of the second steel box girder 2 from top to bottom through a grouting hole, injecting micro-expansion concrete into the inner cavity of the second steel box girder 2, observing the grouting condition through a grout overflow observation hole 4 during grouting, stopping grouting when grout of the micro-expansion concrete overflows from the grout overflow hole 3, effectively avoiding a gap between a bottom steel plate of the first steel box girder 1 and the micro-expansion concrete, and realizing stable connection of the first steel box girder 1 and the second steel box girder 2;
after the second steel box girder 2 is poured, concrete is poured at the position of the embedded steel box column 5, and after the concrete is solidified, a frame column 6 is formed, so that the construction industry of the steel triangular support and the frame column 6 is completed, as shown in fig. 1.
It should be emphasized that the above-described embodiments are merely exemplary embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications, substitutions, improvements, etc. within the technical scope of the present invention, and these modifications and improvements should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A construction method of a steel triangular support is characterized by comprising the following steps: the method comprises the following steps:
firstly, prefabricating a first steel box girder and a second steel box girder, wherein a pair of grouting holes are symmetrically formed in the right part of the first steel box girder up and down, grout overflow holes are formed in the right part of a bottom steel plate of the first steel box girder at intervals, and grout overflow observation holes are formed in the side wall of the first steel box girder; the second steel box girder is an inclined steel box girder, the upper port of the second steel box girder is horizontally arranged, and the lower port of the second steel box girder is vertically arranged;
welding the upper port of the second steel box girder to the right part of the bottom steel plate of the first steel box girder, and ensuring that the grouting hole and the grout overflow hole are both communicated with the inner cavity of the second steel box girder;
thirdly, hoisting the first steel box girder and the second steel box girder which are welded together to a designed height, welding the left end of the first steel box girder on an embedded steel box column of the frame column, and welding the lower port of the second steel box girder on the embedded steel box column below the first steel box girder, so that the first steel box girder, the second steel box girder and the embedded steel box column form a steel triangular support;
and fourthly, penetrating the grouting pipe into the inner cavity of the second steel box girder from top to bottom through the grouting hole, and injecting micro-expansion concrete into the inner cavity of the second steel box girder until grout overflows from the grout overflow hole, and stopping grouting.
2. The construction method of the steel triangular brace according to claim 1, characterized in that: the diameter of the grouting hole is 80-120 mm, and the grouting hole is located in the center of the upper end opening of the second steel box girder.
3. The construction method of the steel triangular brace according to claim 1, characterized in that: the height difference between the slurry overflow observation hole and the bottom steel plate of the first steel box girder is 10-20 mm.
4. The construction method of the steel triangular brace according to claim 1, characterized in that: the aperture of the pulp overflow observation hole is 20 mm-30 mm, and the aperture of the pulp overflow hole is 20 mm-30 mm.
5. The construction method of the steel triangular brace according to claim 1, characterized in that: and the number of the slurry overflow holes is four, and the four slurry overflow holes are vertically corresponding to the four corners of the upper end opening of the second steel box girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110455387.XA CN113107082B (en) | 2021-04-26 | 2021-04-26 | Construction method of steel triangular support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110455387.XA CN113107082B (en) | 2021-04-26 | 2021-04-26 | Construction method of steel triangular support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113107082A CN113107082A (en) | 2021-07-13 |
| CN113107082B true CN113107082B (en) | 2022-03-29 |
Family
ID=76720136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110455387.XA Active CN113107082B (en) | 2021-04-26 | 2021-04-26 | Construction method of steel triangular support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113107082B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278011A (en) * | 2021-12-30 | 2022-04-05 | 上海建工四建集团有限公司 | Special-shaped steel pipe column concrete construction structure and construction method |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201693A5 (en) * | 1972-09-29 | 1974-04-26 | Faucheux Pierre | |
| WO1981001807A1 (en) * | 1979-12-19 | 1981-07-09 | Hardigg Ind Inc | Truss panel |
| SU962489A1 (en) * | 1981-03-10 | 1982-09-30 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Ferroconcrete hollow column for high-rise building |
| JP2006183426A (en) * | 2004-12-28 | 2006-07-13 | Isamu Yahara | Joining structure in framework structure and framework structure |
| KR20060117894A (en) * | 2006-10-30 | 2006-11-17 | 정덕한 | The method of a modular segment for system space rahamen formation and prefabing |
| CN1978838A (en) * | 2005-12-06 | 2007-06-13 | 杨中源 | Construction method for combined V-shape steel pipe concrete pile |
| US7318303B1 (en) * | 2003-07-28 | 2008-01-15 | Aurodyn, Inc. | Architectural system incorporating a hyperstrut spine |
| CN202830785U (en) * | 2012-09-02 | 2013-03-27 | 中铁十二局集团第二工程有限公司 | High pier bridge cantilever casting concrete 0 # block pier top bracket |
| CN106869567A (en) * | 2017-03-31 | 2017-06-20 | 重庆大学 | A kind of energy-dissipating type cold-formed thin-walled steel pipe concrete Lateral Resistant System |
| EP3350382A1 (en) * | 2015-09-17 | 2018-07-25 | ROTTER, Martin J. | Shear transfer system |
| CN109339224A (en) * | 2018-12-05 | 2019-02-15 | 北京中外建建筑设计有限公司 | A kind of support node |
| CN109868896A (en) * | 2019-01-31 | 2019-06-11 | 丁昱丹 | A kind of building |
| CN110016862A (en) * | 2019-04-08 | 2019-07-16 | 中国铁建大桥工程局集团有限公司 | A kind of large span stayed-cable bridge steel-is mixed to combine section constructing method |
| CN209179174U (en) * | 2018-12-05 | 2019-07-30 | 北京中外建建筑设计有限公司 | A kind of support node |
| CN110644349A (en) * | 2019-10-31 | 2020-01-03 | 山东省交通规划设计院 | Superstructure for wide box girder and short tower cable-stayed bridge and construction method |
| CN111485626A (en) * | 2019-01-25 | 2020-08-04 | 河南天久装配式建筑有限公司 | Lightweight sandwich reinforced concrete cow-leg column structure and construction method thereof |
| CN111677130A (en) * | 2020-06-27 | 2020-09-18 | 同济大学建筑设计研究院(集团)有限公司 | Integrated beam column node of container module building |
| CN112095786A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Tubular grouting shear-resistant connection node structure between modules and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060027726A1 (en) * | 2004-07-16 | 2006-02-09 | Keith Jerry L | Bracket and method for supporting a platform from concrete form tabs |
-
2021
- 2021-04-26 CN CN202110455387.XA patent/CN113107082B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201693A5 (en) * | 1972-09-29 | 1974-04-26 | Faucheux Pierre | |
| WO1981001807A1 (en) * | 1979-12-19 | 1981-07-09 | Hardigg Ind Inc | Truss panel |
| SU962489A1 (en) * | 1981-03-10 | 1982-09-30 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Ferroconcrete hollow column for high-rise building |
| US7318303B1 (en) * | 2003-07-28 | 2008-01-15 | Aurodyn, Inc. | Architectural system incorporating a hyperstrut spine |
| JP2006183426A (en) * | 2004-12-28 | 2006-07-13 | Isamu Yahara | Joining structure in framework structure and framework structure |
| CN1978838A (en) * | 2005-12-06 | 2007-06-13 | 杨中源 | Construction method for combined V-shape steel pipe concrete pile |
| KR20060117894A (en) * | 2006-10-30 | 2006-11-17 | 정덕한 | The method of a modular segment for system space rahamen formation and prefabing |
| CN202830785U (en) * | 2012-09-02 | 2013-03-27 | 中铁十二局集团第二工程有限公司 | High pier bridge cantilever casting concrete 0 # block pier top bracket |
| EP3350382A1 (en) * | 2015-09-17 | 2018-07-25 | ROTTER, Martin J. | Shear transfer system |
| CN106869567A (en) * | 2017-03-31 | 2017-06-20 | 重庆大学 | A kind of energy-dissipating type cold-formed thin-walled steel pipe concrete Lateral Resistant System |
| CN109339224A (en) * | 2018-12-05 | 2019-02-15 | 北京中外建建筑设计有限公司 | A kind of support node |
| CN209179174U (en) * | 2018-12-05 | 2019-07-30 | 北京中外建建筑设计有限公司 | A kind of support node |
| CN111485626A (en) * | 2019-01-25 | 2020-08-04 | 河南天久装配式建筑有限公司 | Lightweight sandwich reinforced concrete cow-leg column structure and construction method thereof |
| CN109868896A (en) * | 2019-01-31 | 2019-06-11 | 丁昱丹 | A kind of building |
| CN110016862A (en) * | 2019-04-08 | 2019-07-16 | 中国铁建大桥工程局集团有限公司 | A kind of large span stayed-cable bridge steel-is mixed to combine section constructing method |
| CN110644349A (en) * | 2019-10-31 | 2020-01-03 | 山东省交通规划设计院 | Superstructure for wide box girder and short tower cable-stayed bridge and construction method |
| CN111677130A (en) * | 2020-06-27 | 2020-09-18 | 同济大学建筑设计研究院(集团)有限公司 | Integrated beam column node of container module building |
| CN112095786A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Tubular grouting shear-resistant connection node structure between modules and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 西安至南阳段增建二线的赵河特大桥初步设计;李英杰;《铁道运营技术》;20150731;第21卷(第3期);第30-35页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113107082A (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207160062U (en) | A kind of underground is without post overlapping wall station | |
| CN201128881Y (en) | Preformed supporting structure in bent cap construction | |
| CN113107082B (en) | Construction method of steel triangular support | |
| CN110106881A (en) | A kind of steel-pipe pile construction guidance locating rack and construction method | |
| CN109113335B (en) | Parapet wall formwork support and construction method | |
| CN215106084U (en) | Shock-absorbing connecting structure for asymmetric building and connecting body | |
| CN210342034U (en) | Building jacking deviation correcting device | |
| CN106836255A (en) | The integral prefabricated structure of basement bottom board catch pit bar-mat reinforcement and method of construction | |
| CN104961058B (en) | A kind of double Z shaped support steel beam and crane supporting member and preparation method containing it | |
| CN203034615U (en) | Novel outer sleeve tube type connecting node of cold-bending rectangular steel tube column and H-shaped steel girder | |
| CN206693030U (en) | A kind of compound section steel box girder for high-speed railway | |
| CN115874715A (en) | Steel pipe concrete combination shear wall and girder steel joint construction | |
| CN206418513U (en) | The integral prefabricated structure of basement bottom board catch pit bar-mat reinforcement | |
| WO2020253098A1 (en) | Construction of connecting joint between local laminated slab and combined wall column | |
| CN211473320U (en) | Tool type external hanging rack for corridor | |
| CN206128286U (en) | Steel bracket | |
| CN207538193U (en) | A kind of steel core concrete column and reinforced concrete column concrete core cylinder mixed structure | |
| CN207073118U (en) | Dam hangs the concrete prefabricated formwork structure of body by the feet | |
| CN113107083B (en) | Shock-absorbing connecting structure for asymmetric building and connecting body | |
| CN206513378U (en) | A kind of tunnel inverted arch and filling termination Integral Steel mould template | |
| CN206289861U (en) | A kind of aluminium alloy girder | |
| CN206034486U (en) | It consolidates to draw formula to one side system for major structure subsides post -cast strip department | |
| CN218990553U (en) | Double-steel-plate shear wall structure easy for concrete pouring operation | |
| CN214739982U (en) | Constructional column pouring structure | |
| CN217204611U (en) | A skew shaped steel concrete bridge column node structure for becoming intensity beam column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |