CN107795130A - The large-scale truss pre-assembly method of steel construction and moulding bed - Google Patents
The large-scale truss pre-assembly method of steel construction and moulding bed Download PDFInfo
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- CN107795130A CN107795130A CN201711092733.2A CN201711092733A CN107795130A CN 107795130 A CN107795130 A CN 107795130A CN 201711092733 A CN201711092733 A CN 201711092733A CN 107795130 A CN107795130 A CN 107795130A
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- preassembling
- truss
- moulding bed
- scale
- steel construction
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of large-scale truss pre-assembly method of steel construction, including：Step 1, the large-scale truss device therefor of preassembling is selected；Step 2, ground sample is put：The overall ground sample of truss is got on ground level on the scene；Step 3, moulding bed is set at ground sample；Step 4, the oblique box connecting node of the large-scale truss of institute's preassembling is placed on the moulding bed of setting, and compares the ground sample adjustment position that the step 2 is put well, detects groove gap, the groove misalignment of the tiltedly box connecting node joint splicing；Step 5, the upper and lower chord member and diagonal web member of the large-scale truss of institute's preassembling are placed on the moulding bed adjusted, and compares the ground sample adjustment position put well, detects groove gap, the groove misalignment of upper and lower chord member and diagonal web member node joint splicing；Complete the preassembling of large-scale truss.Due to meeting the moulding bed of the large-scale truss weight demands of steel construction using rigidity and intensity, there is higher-security；Construction quality is guaranteed, lifts operating efficiency.
Description
Technical field
The present invention relates to field of steel structure construction, more particularly to a kind of large-scale truss pre-assembly method of steel construction and moulding bed.
Background technology
In construction process, Construction Technology of Steel Configuration is one of very important technology.Steel construction is complete in structure manufacture
Cheng Hou, shipping building-site are installed, it is necessary to ensure installation quality and installation accuracy.As long as some simple steel structure members
Machining accuracy and quality are controlled in factory process, can ensure that building-site installation task is smoothed out substantially.However, part
Large complicated truss either in still installation process is made, there is larger production difficulty.Therefore, for large complicated purlin
Factory's preassembling of frame is just particularly important.
Steel construction preassembling is that the large-scale steel structures such as the truss of segmentation manufacture are carried out into entirety or staged and layered before dispatching from the factory
The operation process of provisional assembling.Preassembling is to control quality, ensure the effective measures that component is smoothly installed at the scene.Existing skill
Art and moulding bed measure can tackle the realization of general truss preassembling substantially, however, for large-scale truss (such as similar Beijing China
This large-scale truss structure engineering of honor steel), existing moulding bed measure, assembling technique and processing safety can not but meet will
Ask, i.e. the truss preassembling technique of prior art, the pre-splicing reload request of ultra-large type truss can not be met by existing；Preassembling ultra-large type purlin
Frame safety coefficient has to be hoisted.
The content of the invention
Based on the problems of prior art, it is an object of the invention to provide a kind of large-scale truss preassembling side of steel construction
Method and moulding bed, it can facilitate to the large-scale truss preassembling of steel construction, it is ensured that scene is once assembled and lifts success rate, it is possible to reduce existing
Field assembly and alignment error.
The purpose of the present invention is achieved through the following technical solutions：
Embodiment of the present invention provides a kind of large-scale truss pre-assembly method of steel construction, including：
Step 1, the equipment used in the large-scale truss of preassembling is selected；
Step 2, ground sample is put：The overall ground sample of truss is got on ground level on the scene, it is pre-splicing to mark institute by the error of setting
Fill center line, the segmentation tongue and groove line of the component of large-scale truss；
Step 3, moulding bed is set at ground sample：Meet the tire of the large-scale truss weight demands of steel construction using rigidity and intensity
Frame, each moulding bed absolute altitude suitable for reading and horizontal gradient error are not more than 1.5mm；
Step 4, the oblique box connecting node of the large-scale truss of institute's preassembling is placed on the moulding bed that step 3 is set, and is compareed
The ground sample adjustment position that the step 2 is put well, groove gap, the groove for detecting the tiltedly box connecting node joint splicing are wrong
Side；
Step 5, the upper and lower chord member and diagonal web member of the large-scale truss of institute's preassembling are placed on the moulding bed that step 4 is adjusted, and
The ground sample adjustment position that the step 2 is put well is compareed, between the groove for detecting upper and lower chord member and diagonal web member node joint splicing
Gap, groove misalignment；
After completing above steps, that is, complete the preassembling of the large-scale truss of steel construction.
Embodiment of the present invention also provides a kind of steel construction large-scale truss preassembling moulding bed, it is characterised in that is carried for preassembling
For solid, firm platform, structure type composition is predominantly hot rolled H-shaped, is connected by Type of Welding.
By above-mentioned, technical scheme provided by the invention can be seen that the large-scale truss of steel construction provided in an embodiment of the present invention
Pre-assembly method and moulding bed, its advantage are：
By putting ground sample, setting the steps such as moulding bed to coordinate, the component for avoiding the large-scale truss of institute's preassembling contacts with ground
And plastic deformation is produced, ensure splicing accuracy and assembled quality, and the turn for the large-scale super-heavy component of rule provides conveniently.
Due to meeting the moulding bed of the large-scale truss weight demands of steel construction using rigidity and intensity, there is higher-security；Due to that can realize
The component preassembling of large-scale truss so that construction quality can be guaranteed, and improve operating efficiency, have considerable society's effect
Benefit, there is higher replicability.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the large-scale truss preassembling moulding bed of steel construction provided in an embodiment of the present invention；
Fig. 2 is the structure of first step installation component on the large-scale truss preassembling moulding bed of steel construction provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is the structure of second step installation component on the large-scale truss preassembling moulding bed of steel construction provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is the structure of the 3rd step installation component on the large-scale truss preassembling moulding bed of steel construction provided in an embodiment of the present invention
Schematic diagram.
Embodiment
With reference to the particular content of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to protection scope of the present invention.The content not being described in detail in the embodiment of the present invention belongs to professional and technical personnel in the field
Known prior art.
As shown in Figures 1 to 4, the embodiment of the present invention provides a kind of large-scale truss pre-assembly method of steel construction, including：
Step 1, the equipment used in the large-scale truss of preassembling is selected；
Step 2, ground sample is put：The overall ground sample of truss is got on ground level on the scene, it is pre-splicing to mark institute by the error of setting
Fill center line, the segmentation tongue and groove line of the component of large-scale truss；
Step 3, moulding bed is set：Meet the moulding bed of the large-scale truss weight demands of steel construction, each moulding bed using rigidity and intensity
Absolute altitude and horizontal gradient error suitable for reading are not more than 1.5mm；
Step 4, the oblique box connecting node of the large-scale truss of institute's preassembling is placed on the moulding bed that step 3 is set, and is compareed
The ground sample adjustment position that the step 2 is put well, groove gap, the groove for detecting the tiltedly box connecting node joint splicing are wrong
Side；
Step 5, the upper and lower chord member and diagonal web member of the large-scale truss of institute's preassembling are placed on the moulding bed that step 4 is adjusted, and
The ground sample adjustment position that the step 2 is put well is compareed, between the groove for detecting upper and lower chord member and diagonal web member node joint splicing
Gap, groove misalignment；
After completing above steps, that is, complete the preassembling of the large-scale truss of steel construction.
In the step 1 of the above method, the equipment used in the large-scale truss of preassembling includes：
50 tons of straddle trucks, carbon dioxide gas shielded welding machine, plumb bob, steel ruler, ruler, angle square, spirit level, Welding Testings
Chi, jack, angle grinder, spanner, spring scale and sander.
In the step 2 of the above method, the error that sets as no more than 1mm, and after ground sample is put by defined error to institute
Put ground sample to test, carry out next step after the assay was approved.
In the step 3 of the above method, set moulding bed is tested by specification error after moulding bed is set, it is qualified to examine
Enter next step afterwards.
The above method also includes, preassembling finishes reach technical requirements after, Quality People carries out an acceptance inspection, and carries out pre-splicing
Dress record；And the center line of component is stamped on component, sample dotting punch is stamped, all after quality inspection personnel acceptance(check), according to steel
The requirement of structure design leader carries out sandblasting paint, is sent to scene, and component turns over, the process of having bad luck should follow the related rule of Ministry of State Security
It is fixed.
As shown in figure 1, the embodiment of the present invention also includes a kind of large-scale truss preassembling moulding bed of steel construction, structure type is formed
It is predominantly hot rolled H-shaped, connected by Type of Welding, specifically, the jig structure is by the hot rolled H-shaped component being welded
The rectangular parallelepiped structure of composition, this moulding bed provide solid, firm platform for preassembling.
The embodiment of the present invention is specifically described in further detail below.
The large-scale truss pre-assembly method of steel construction of the present invention, comprises the following steps：
Step 1, the design feature according to preassembling component, the processing and fabricating plan of combination member, this transfer truss steel
The capital equipment that structure preassembling intends input is as follows：
Step 2, put ground sample.The overall ground sample of truss is got on ground level on the scene, marks center line, the segmentation enterprise of component
Mouth line, error ≯ 1mm, and can be used after the assay was approved through quality inspection portion.Before preassembling, all parts and part have all made
Finish, and reach the requirement of specification by examination.Sizing is controlled according to design requirement, to the preassembling structure for thering is welding to shrink
Part, carry out sizing adjustment.
Step 3, moulding bed is set.Moulding bed must have enough rigidity and intensity, and each moulding bed absolute altitude suitable for reading and levelness are necessary
Ensure error ≯ 1.5mm (as shown in Figure 2).Moulding bed must be approved after setting through full-time inspector, can use.
Step 4, the oblique box connecting node of truss is placed on moulding bed, comparatively sample adjustment position, detection joint splicing
Groove gap, groove misalignment, as shown in Figure 3.
Step 5, the upper and lower chord member of truss and diagonal web member are placed on moulding bed, comparatively sample adjustment position, detects itself and node
The groove gap of joint splicing, groove misalignment, as shown in Figure 4.
Above-mentioned preassembling finishes reach technical requirements after, Quality People carries out an acceptance inspection and approved through management, carries out pre-
Assembly record.And the center line of component is stamped on component, stamp sample dotting punch.All by full-time quality inspection personnel acceptance(check)
Afterwards, sandblasting paint is carried out according to the requirement of Steel Structural Design leader, is sent to scene.Component turns over, the process of having bad luck should follow peace
Whole relevant regulations.
The quality requirement of above-mentioned preassembling is as follows：
(1) truss preassembling process measurement
1) joint gap and misalignment are checked during assembly and adjusts setting.
2) diagonal of upper and lower chord member spacing, diagonal and integral assembling is examined.
3) with the error between the projection of plumb bob and ruler measurement component and ground sample.
4) find to adjust to acceptability limit during larger error.
(2) truss preassembling testing requirements are as follows：
The tolerance of truss preassembling should meet the regulation of following table：
The pre-assembly method of the present invention is in factory's preassembling experimental applications of Beijing China honor project TT2 transfer trusses, institute
About 9.3 meters of preassembling rise of a truss, about 43 meters of length, web member intersects to be arranged in X-shaped, the main 390GJC of steel plate thickness material.At angle
Portion is provided with angle truss.Truss member is box-type section parallelogram.Whole annulus girders layer is divided into eight units altogether,
The dividing elements of one facade are a truss structure and angle truss, and whole truss is arranged and tilted inward, and gradient 119/1000 is pre-splicing
Dress plans the truss of a facade as preassembling unit, carries out plane preassembling, has reached preferable effect.
The pre-assembly method of the present invention, has the advantages that：
(1) enough rigidity and intensity assembly moulding bed are set to ensure assembled safety, it also avoid component contacted with ground and
Plastic deformation is produced, symmetrical bolt also ensures that sectional dimension is indeformable or deformation is minimum between each section of truss；
(2) splicing accuracy and assembled quality are ensured；
(3) turn for the large-scale super-heavy component of rule provides conveniently.
(4) design strength of moulding bed combines the weight of large-scale component well, has higher-security；
(5) there is considerable social benefit.The present invention is applied to most of large-scale super-heavy component of rule.By using this hair
Bright, projects quality can be guaranteed, convenient construction and field management.With higher replicability.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (6)
- A kind of 1. large-scale truss pre-assembly method of steel construction, it is characterised in that including：Step 1, the equipment used in the large-scale truss of preassembling is selected；Step 2, ground sample is put：The overall ground sample of truss is got on ground level on the scene, it is large-scale to mark institute's preassembling by the error of setting Center line, the segmentation tongue and groove line of the component of truss；Step 3, moulding bed is set at ground sample：Meet the moulding bed of the large-scale truss weight demands of steel construction using rigidity and intensity, respectively Moulding bed absolute altitude suitable for reading and horizontal gradient error are not more than 1.5mm；Step 4, the oblique box connecting node of the large-scale truss of institute's preassembling is placed on the moulding bed that step 3 is set, and described in controlThe ground sample adjustment position that step 2 is put well, groove gap, the groove for detecting the tiltedly box connecting node joint splicing are wrong Side；Step 5, the upper and lower chord member and diagonal web member of the large-scale truss of institute's preassembling are placed on the moulding bed that step 4 is adjusted, and is compareed The ground sample adjustment position that the step 2 is put well, detect the groove gap of upper and lower chord member and diagonal web member node joint splicing, cut open Mouth misalignment；After completing above steps, that is, complete the preassembling of the large-scale truss of steel construction.
- 2. the large-scale truss pre-assembly method of steel construction according to claim 1, it is characterised in that pre-splicing in the step 1 Filling the equipment used in large-scale truss includes：50 tons of straddle trucks, carbon dioxide gas shielded welding machine, plumb bob, steel ruler, ruler, angle square, spirit level, welding inspection ruler, thousand Jin top, angle grinder, spanner, spring scale and sander.
- 3. the large-scale truss pre-assembly method of steel construction according to claim 1 or 2, it is characterised in that in the step 2, The error set is tested after ground sample is put by defined error to putting ground sample as no more than 1mm, is entered after the assay was approved Row next step.
- 4. the large-scale truss pre-assembly method of steel construction according to claim 1 or 2, it is characterised in that in the step 3, Set moulding bed is tested by specification error after moulding bed is set, after the assay was approved into next step.
- 5. the large-scale truss pre-assembly method of steel construction according to claim 1 or 2, it is characterised in that methods described is also wrapped Include, preassembling finishes reach technical requirements after, Quality People carries out an acceptance inspection, carry out preassembling record；And beaten on component The center line of upper member, sample dotting punch is stamped, all after quality inspection personnel acceptance(check), according to the requirement of Steel Structural Design leader Sandblasting paint is carried out, is sent to scene, component turns over, the process of having bad luck should follow Ministry of State Security's relevant regulations.
- 6. a kind of large-scale truss preassembling moulding bed of steel construction, it is characterised in that the jig structure is to be welded by hot rolled H-shaped Component composition rectangular parallelepiped structure.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678398A (en) * | 2018-07-18 | 2018-10-19 | 中冶建工集团有限公司 | A kind of high-rise building enhancement layer steel structure truss pre-assembly method |
| CN108842638A (en) * | 2018-09-03 | 2018-11-20 | 江苏省建筑工程集团有限公司 | Steel pipe truss beam orbit formula moulding bed limit assembly, cluster lifting jack unloading engineering method |
| CN109184225A (en) * | 2018-10-23 | 2019-01-11 | 中建三局安装工程有限公司 | Four string prismatic bending circular tube truss structural systems of one kind and assembling method |
| CN111515495A (en) * | 2020-05-20 | 2020-08-11 | 贵州建工集团第一建筑工程有限责任公司 | Method for manufacturing steel structure layer beam of high-rise building |
| CN111550059A (en) * | 2020-04-30 | 2020-08-18 | 中冶(上海)钢结构科技有限公司 | Accumulative circulating pre-assembly method for special-shaped steel structure |
| CN111851744A (en) * | 2020-07-15 | 2020-10-30 | 安徽省工业设备安装有限公司 | Air butt joint hoisting method for large-span pipe truss |
| CN112324156A (en) * | 2020-10-23 | 2021-02-05 | 北京城建六建设集团有限公司 | Ring beam joint combination and assembly method |
| CN113027172A (en) * | 2021-02-05 | 2021-06-25 | 广西建工集团第五建筑工程有限责任公司 | Modularized division type building method for building containers quickly |
| CN113513173A (en) * | 2021-04-02 | 2021-10-19 | 上海二十冶建设有限公司 | Accumulated continuous pre-assembly construction method for large deformed steel structure |
| CN115045560A (en) * | 2022-06-23 | 2022-09-13 | 中建钢构工程有限公司 | Pre-assembly method of special-shaped high-rise steel structure |
| CN115434520A (en) * | 2022-09-30 | 2022-12-06 | 中冶(上海)钢结构科技有限公司 | Method for replacing complex heavy truss three-dimensional pre-assembly |
-
2017
- 2017-11-08 CN CN201711092733.2A patent/CN107795130A/en active Pending
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678398A (en) * | 2018-07-18 | 2018-10-19 | 中冶建工集团有限公司 | A kind of high-rise building enhancement layer steel structure truss pre-assembly method |
| CN108678398B (en) * | 2018-07-18 | 2020-07-14 | 中冶建工集团有限公司 | Pre-assembly method for steel structure truss of reinforced layer of super high-rise building |
| CN108842638A (en) * | 2018-09-03 | 2018-11-20 | 江苏省建筑工程集团有限公司 | Steel pipe truss beam orbit formula moulding bed limit assembly, cluster lifting jack unloading engineering method |
| CN109184225A (en) * | 2018-10-23 | 2019-01-11 | 中建三局安装工程有限公司 | Four string prismatic bending circular tube truss structural systems of one kind and assembling method |
| CN111550059A (en) * | 2020-04-30 | 2020-08-18 | 中冶(上海)钢结构科技有限公司 | Accumulative circulating pre-assembly method for special-shaped steel structure |
| CN111515495A (en) * | 2020-05-20 | 2020-08-11 | 贵州建工集团第一建筑工程有限责任公司 | Method for manufacturing steel structure layer beam of high-rise building |
| CN111851744A (en) * | 2020-07-15 | 2020-10-30 | 安徽省工业设备安装有限公司 | Air butt joint hoisting method for large-span pipe truss |
| CN112324156A (en) * | 2020-10-23 | 2021-02-05 | 北京城建六建设集团有限公司 | Ring beam joint combination and assembly method |
| CN112324156B (en) * | 2020-10-23 | 2021-06-29 | 北京城建六建设集团有限公司 | Ring beam joint combination and assembly method |
| CN113027172A (en) * | 2021-02-05 | 2021-06-25 | 广西建工集团第五建筑工程有限责任公司 | Modularized division type building method for building containers quickly |
| CN113513173A (en) * | 2021-04-02 | 2021-10-19 | 上海二十冶建设有限公司 | Accumulated continuous pre-assembly construction method for large deformed steel structure |
| CN115045560A (en) * | 2022-06-23 | 2022-09-13 | 中建钢构工程有限公司 | Pre-assembly method of special-shaped high-rise steel structure |
| CN115434520A (en) * | 2022-09-30 | 2022-12-06 | 中冶(上海)钢结构科技有限公司 | Method for replacing complex heavy truss three-dimensional pre-assembly |
| CN115434520B (en) * | 2022-09-30 | 2023-10-27 | 中冶(上海)钢结构科技有限公司 | Method for replacing three-dimensional pre-assembly of complex heavy truss |
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