CN117145051A - High-altitude assembly structure of large-span space broken line truss and construction method - Google Patents
High-altitude assembly structure of large-span space broken line truss and construction method Download PDFInfo
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- CN117145051A CN117145051A CN202311122475.3A CN202311122475A CN117145051A CN 117145051 A CN117145051 A CN 117145051A CN 202311122475 A CN202311122475 A CN 202311122475A CN 117145051 A CN117145051 A CN 117145051A
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- truss
- steel truss
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 238000003466 welding Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 17
- 238000013461 design Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
- E04B1/19—Three-dimensional framework structures
-
- 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
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
-
- 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
- E04B1/19—Three-dimensional framework structures
- E04B2001/1924—Struts specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a high-altitude assembly structure of a large-span space broken line truss and a construction method. The invention has the beneficial effects that: the invention is provided with the support columns, the steel truss and the jig frame, so that the jig frame can be quickly assembled and disassembled, the turnover of the jig frame is quickened, the materials, the cost and the construction period are saved, the lean construction is realized, the stability of a support system is enhanced, and the construction safety is ensured.
Description
Technical Field
The invention relates to the technical field of steel truss construction, in particular to a high-altitude assembly structure of a large-span space broken line truss and a construction method.
Background
With the development of social economy, the demands of large-scale meetings, large-scale gymnasiums, large-scale airports and the like are increased, the design and construction processes of steel trusses are continuously improved under the demands, a large number of large-scale steel truss buildings are newly built in China, the structural forms of the steel trusses are increasingly novel, the structures are increasingly complex, and the structural spans are increasingly large.
1. The construction method for in-situ assembly of a large-span steel truss overhead is disclosed in China patent, wherein a full-hall support frame is firstly erected below a steel truss to be assembled (publication number: CN 112796528B); then setting up an operation platform on the full-hall support frame; hoisting the steel truss sections to an operation platform in sequence, and finally integrally assembling the steel truss sections; the operation platform comprises a supporting unit, wherein the supporting unit consists of a plurality of cross beams and two walkways paved on the cross beams, each cross beam is vertical to the longitudinal direction of the steel truss, all the cross beams are longitudinally arranged at intervals along the longitudinal direction of the steel truss, the two walkways are longitudinally detachably arranged on the cross beams along the longitudinal direction of the steel truss, and a certain distance is reserved between the two walkways, so that a spacing groove is formed on the cross beams and used for placing the steel truss to be assembled; before setting up operation platform, set up adjustable U-shaped jacking in the top of two full hall support frame pole settings that correspond at every crossbeam both ends earlier, the crossbeam is placed in the U-shaped jacking. The operation platform adopted by the construction method is convenient to install and detach, and the working efficiency can be effectively improved.
2. The high-altitude assembly method of the large-span truss (publication number: CN 107762160A) comprises the construction steps of preparation work, truss assembly and subsequent truss installation, can effectively solve the problem that the installation requirements cannot be met due to assembly and hoisting sites, does not need to adopt large hoisting machinery in the construction process, and fully utilizes the field small-sized tower crane.
The ultra-large span irregular linear truss with complex modeling is widely applied to building design, the large-span truss has good bearing performance and high strength, can provide ultra-large space, saves materials, and can meet various modeling requirements; the subsequent lifting of the structure of the overweight large-span steel truss becomes a great difficulty, and the proper lifting process is selected, so that the smooth lifting of the overweight large-span steel truss is particularly important.
Therefore, aiming at the technical problems, it is necessary to provide a high-altitude assembly structure of a large-span space broken line truss and a construction method.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-altitude assembly structure of a large-span space broken line truss and a construction method thereof so as to solve the problems.
The utility model provides a structure is assembled to large-span space broken line truss high altitude, includes support column, steel truss and bed-jig, the steel truss erects between two support columns, two be provided with a plurality of bed-jig between the support column, the steel truss is withstood to the top of bed-jig.
Preferably, the steel truss is assembled by a plurality of truss units.
Preferably, the steel truss is formed by welding or bolting a plurality of truss units.
Preferably, the jig comprises a base, standard knots and a support top beam, wherein a plurality of standard knots are connected between the support top beam and the base.
Preferably, an adjusting joint and a hydraulic ram are arranged above the support top beam.
Preferably, the number of standard knots is set according to the required height of the moulding bed.
A construction method of a high-altitude assembly structure of a large-span space broken line truss comprises the following steps:
s1, segmenting a truss according to various factors of the lifting capacity, the construction process, the construction method and the convenience in component transportation of the comprehensive tower crane according to a design drawing, and carrying out steel truss deepening design;
s2, processing a back field steel truss member according to the steel truss deepening diagram;
s3, transporting the steel truss to a construction site in batches;
s4, mounting a jig frame;
s5, steel truss sectional hoisting and welding;
s6, dismantling the jig frame.
Wherein step S4 further comprises the steps of:
s41, paying off positioning, demarcating a positioning line, positioning and rechecking;
s42, embedding a base of the jig frame;
s43, hoisting a standard section of the tower crane, wherein the standard section is welded with the base and is connected with a standard section through a bolt;
s44, installing an adjusting section and welding the adjusting section with a standard section;
s45, detecting welding quality;
s46, positioning the jig frame, vertically and rechecking elevation.
Wherein step S5 further comprises the steps of:
s51, hoisting a steel truss in place;
s52, rechecking elevation and position of the steel truss;
s53, welding a steel truss;
s54, appearance inspection and nondestructive flaw detection of the welding line.
The deformation and displacement monitoring of the jig frame in the step S4 are needed to be carried out in the construction process of the step S5; and in the construction process of the step S6, the deformation and displacement monitoring of the steel truss of the step S are needed.
Compared with the prior art, the invention has the beneficial effects that: the invention is provided with the support columns, the steel truss and the jig frame, so that the jig frame can be quickly assembled and disassembled, the turnover of the jig frame is quickened, the materials, the cost and the construction period are saved, the lean construction is realized, the stability of a support system is enhanced, and the construction safety is ensured.
Drawings
FIG. 1 is an overhead assembly structure diagram of a large-span spatial broken line truss of the present invention;
FIG. 2 is a block diagram of a steel truss of the invention;
FIG. 3 is a block diagram of a truss unit of the present invention;
FIG. 4 is a block diagram of the invention;
FIG. 5 is a carcass placement distribution diagram of the present invention;
FIG. 6 is a flow chart of a construction method of the present invention;
FIG. 7 is a further flowchart of step S4 of the present invention;
fig. 8 is a further flowchart of step S5 of the present invention.
Reference numerals in the drawings: 1. a support column; 2. a steel truss; 3. a jig frame; 4. truss units; 301. a base; 302. a standard section; 303. a support top beam; 304. adjusting the joint; 305. and a hydraulic ram.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
As shown in fig. 1 in combination with fig. 2 to 8, a high-altitude assembly structure of a large-span space broken line truss comprises support columns 1, steel trusses 2 and a jig frame 3, wherein the steel trusses 2 are erected between the two support columns 1, a plurality of jig frames 3 are arranged between the two support columns 1, and the steel trusses 2 are propped against the upper sides of the jig frames 3.
Further, the steel truss 2 is formed by assembling a plurality of truss units 4.
Further, the steel truss 2 is formed by welding or bolting a plurality of truss units 4.
Further, the tire frame 3 comprises a base 301, standard knots 302 and a support top beam 303, and a plurality of standard knots 302 are connected between the support top beam 303 and the base 301.
Further, an adjusting joint 304 and a hydraulic roof 305 are arranged above the support top beam 303.
Further, the number of standard knots 302 is set according to the required height of the moulding bed 3.
A construction method of a high-altitude assembly structure of a large-span space broken line truss comprises the following steps:
s1, segmenting a steel truss according to various factors of the lifting capacity, the construction process, the construction method and the convenience in component transportation of the comprehensive tower crane according to a design drawing, and carrying out deepening design on the steel truss;
s2, machining a back field steel truss 2 component according to the steel truss 2 deepening diagram;
s3, transporting the steel truss 2 to a construction site in batches;
s4, installing a jig frame 3;
s5, steel truss 2 is hoisted and welded in a segmented mode;
s6, dismantling the jig frame 3.
Wherein step S4 further comprises the steps of:
s41, paying off positioning, demarcating a positioning line, positioning and rechecking;
s42, embedding a base 301 of the jig frame 3;
s43, hoisting a tower crane standard section 302, welding the standard section 302 with a base 301, and connecting the standard section 302 with the standard section 302 by bolts;
s44, installing an adjusting joint 304 and welding a standard joint 302;
s45, detecting welding quality;
s46, positioning the jig frame 3, and rechecking the elevation.
Wherein step S5 further comprises the steps of:
s51, hoisting the steel truss 2 into position;
s52, rechecking elevation and position of the steel truss 2;
s53, welding a steel truss 2;
s54, appearance inspection and nondestructive flaw detection of the welding line. The steel truss was 61.2 meters long and weighed 53.51 tons.
The deformation and displacement monitoring of the jig frame in the step S4 are needed to be carried out in the construction process of the step S5; and in the construction process of the step S6, the deformation and displacement monitoring of the steel truss of the step S are needed.
Compared with the prior art, the invention has the beneficial effects that: the invention is provided with the support columns, the steel truss and the jig frame, so that the jig frame can be quickly assembled and disassembled, the turnover of the jig frame is quickened, the materials, the cost and the construction period are saved, the lean construction is realized, the stability of a support system is enhanced, and the construction safety is ensured.
Working principle: according to a design drawing, the steel truss 2 is segmented according to various factors of the lifting capacity, the construction process, the construction method and the convenience in component transportation of the comprehensive tower crane, and the steel truss 2 is deeply designed; carrying out post-field machining on the steel truss 2 according to the deepening drawing; the steel truss 2 is transported to a construction site in batches; paying off and positioning the base of the jig frame 3 according to the floor plan of the jig frame 3 shown in fig. 5, demarcating a positioning line, and positioning and rechecking; the base 301 of the jig frame 3 is installed; the tower crane standard section 302 is hoisted, the standard section 302 is welded with the base 301, and the standard section 302 is connected with the standard section 302 through bolts; the adjusting section is installed and welded with the standard section 302; performing welding quality detection; rechecking the positioning, verticality, elevation and the like of the jig frame 3; after rechecking, hoisting the steel truss 2 in place in sequence; the deformation and displacement monitoring of the jig frame 3 are finished in real time in the hoisting process of the steel truss 2; after being in place, the position and elevation of the steel truss 2 are rechecked; after rechecking, carrying out welding operation on the steel truss 2; performing appearance inspection and nondestructive inspection on the welding seam after the welding operation is finished; after the operation is completed, the temporary support jig frame 3 is removed; and during the dismantling operation, the deformation and displacement of the steel truss 2 are monitored in real time.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (10)
1. A structure is assembled to large-span space broken line truss high altitude, its characterized in that: including support column (1), steel truss (2) and bed-jig (3), steel truss (2) erect between two support columns (1), two be provided with a plurality of bed-jig (3) between support column (1), steel truss (2) are withstood to the top of bed-jig (3).
2. The high-altitude splicing structure of a large-span space broken line truss as set forth in claim 1, wherein: the steel truss (2) is formed by assembling a plurality of truss units (4).
3. The high-altitude splicing structure of a large-span space broken line truss as set forth in claim 1, wherein: the steel truss (2) is formed by welding or bolting a plurality of truss units (4).
4. The high-altitude splicing structure of a large-span space broken line truss as set forth in claim 1, wherein: the jig frame (3) comprises a base (301), standard knots (302) and a support top beam (303), wherein a plurality of standard knots (302) are connected between the support top beam (303) and the base (301).
5. The high-altitude splicing structure of the large-span space broken line truss as set forth in claim 4, wherein: an adjusting joint (304) and a hydraulic roof (305) are arranged above the support top beam (303).
6. The high-altitude splicing structure of the large-span space broken line truss as set forth in claim 4, wherein: the number of standard knots (302) is set according to the height required for the moulding bed (3).
7. The construction method of the high-altitude assembly structure of the large-span space broken line truss, as set forth in any one of claims 1 to 6, is characterized in that: the method comprises the following steps:
s1, segmenting a steel truss according to the design drawing, and deeply designing the steel truss (2) by integrating the hoisting capacity, the construction process, the construction method and the factors of convenience in component transportation;
s2, machining a member of the back field steel truss (2) according to a deepening diagram of the steel truss (2);
s3, transporting the steel truss (2) to a construction site in batches;
s4, installing a jig frame (3);
s5, hoisting and welding the steel truss (2) in a segmented mode;
s6, dismantling the jig frame (3).
8. The construction method of the high-altitude assembly structure of the large-span space broken line truss, as set forth in claim 7, is characterized in that: wherein step S4 further comprises the steps of:
s41, paying off positioning, demarcating a positioning line, positioning and rechecking;
s42, embedding a base (301) of the jig frame (3);
s43, hoisting a tower crane standard section (302), welding the standard section (302) with a base (301), and connecting the standard section (302) with the standard section (302) by bolts;
s44, installing an adjusting joint (304) and welding a standard joint (302);
s45, detecting welding quality;
s46, positioning, verticality and elevation rechecking of the jig frame (3).
9. The construction method of the high-altitude assembly structure of the large-span space broken line truss, as set forth in claim 7, is characterized in that: wherein step S5 further comprises the steps of:
s51, hoisting the steel truss (2) into position;
s52, rechecking elevation and position of the steel truss (2);
s53, welding a steel truss (2);
s54, appearance inspection and nondestructive flaw detection of the welding line.
10. The construction method of the high-altitude assembly structure of the large-span space broken line truss, as set forth in claim 7, is characterized in that: the deformation and displacement monitoring of the jig frame in the step S4 are simultaneously carried out in the construction process of the step S5; and in the construction process of the step S6, the deformation and displacement monitoring of the steel truss of the step S5 are performed at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311122475.3A CN117145051A (en) | 2023-08-31 | 2023-08-31 | High-altitude assembly structure of large-span space broken line truss and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311122475.3A CN117145051A (en) | 2023-08-31 | 2023-08-31 | High-altitude assembly structure of large-span space broken line truss and construction method |
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| CN117145051A true CN117145051A (en) | 2023-12-01 |
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| CN202311122475.3A Pending CN117145051A (en) | 2023-08-31 | 2023-08-31 | High-altitude assembly structure of large-span space broken line truss and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888721A (en) * | 2024-03-15 | 2024-04-16 | 中建八局天津建设工程有限公司 | Cantilever type steel truss construction system and construction method |
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2023
- 2023-08-31 CN CN202311122475.3A patent/CN117145051A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888721A (en) * | 2024-03-15 | 2024-04-16 | 中建八局天津建设工程有限公司 | Cantilever type steel truss construction system and construction method |
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