CN109372268A - A kind of construction method for L-type truss overhanging type Steel Structure Installation - Google Patents
A kind of construction method for L-type truss overhanging type Steel Structure Installation Download PDFInfo
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- CN109372268A CN109372268A CN201811381071.5A CN201811381071A CN109372268A CN 109372268 A CN109372268 A CN 109372268A CN 201811381071 A CN201811381071 A CN 201811381071A CN 109372268 A CN109372268 A CN 109372268A
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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
- E04G21/162—Handles to carry construction blocks
Abstract
The present invention relates to a kind of construction methods for L-type truss overhanging type Steel Structure Installation, comprising: 1) main couple of L-type truss overhanging type steel structure, that is, L-type truss is installed using segmentation, and the circumferential truss between L-type truss uses integral installation；2) interior circuit and bypass road are set respectively in inside and outside crane operation face, be used for crane lifting walking operations；3) construction area is installed by the multiple Work sectors in expansion joint point, segmentation；L-type truss fixing end is successively installed and L-type truss overhangs end, and sets up measure bracket；4) main item controlled is measured after being installed；5) point multiple regions carry out, and carry out structure unloading by substep, multiple, the micro decline of circulation principle.The technological means that the present invention uses is reasonable, easy to operate, construction efficiency is high, and in-site installation first-time qualification rate is up to 90% or more.
Description
Technical field
The present invention relates to installation technology of steel structure field, more particularly to one kind to be used for L-type truss overhanging type Steel Structure Installation
Construction method.
Background technique
In many Construction of Steel Structure engineerings, large span, the L-type truss overhanging type steel structure of large-tonnage are (as shown in Figure 1
Stadium steel structure) installation be it is more complicated, construction technical schemes are most important for engineering construction；For steel construction
Span is big, the feature of special, live place situation etc. is designed from great, building function, more a variety of installation methods the characteristics of
On the basis of advantage and disadvantage, optimization, which forms most reasonable installation method, becomes the primary work times of Installation Technology personnel
Business.
Summary of the invention
The present invention provides a kind of construction method for L-type truss overhanging type Steel Structure Installation, the technological means of use
Rationally, easy to operate, construction efficiency is high, in-site installation first-time qualification rate is up to 90% or more.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of construction method for L-type truss overhanging type Steel Structure Installation, comprises the following processes:
1) main couple of L-type truss overhanging type steel structure, that is, L-type truss is installed using segmentation, the circumferential purlin between L-type truss
Frame uses integral installation；
2) interior circuit and bypass road are set respectively in inside and outside crane operation face, be used for crane lifting walking operations；L-type purlin
Frame fixing end and L-type truss cantilever end stand on bypass road using crawler crane and are installed, and circumferential truss is stood on interior using crawler crane
Circuit or bypass road are installed；
3) construction area is installed by the multiple Work sectors in expansion joint point, segmentation；Specific installation steps are as follows:
The installation of step 1:L type truss fixing end；
The installation of L-type truss fixing end is installed since the unit for having triatic stay to two sides, and stable space is initially formed
Structure is accurately positioned convenient for subsequent structural and reduces accumulated error；It is fixed after mounting and adjusting with cable wind rope, until L-type purlin
Next truss structure of frame fixing end installs circumferential truss therebetween after the installation is completed, forms first stable structural unit rear
It can carry out the construction of next structural unit；It is set in first structural unit in L-type truss fixing end other structures installation process
The cable wind rope set must not be removed；Simultaneously L-type truss fixing end mark is radial, tangential measurement control point or control line, at any time into
Row checks；Two mounted structural units are at least lagged when a certain structural unit largely welds, and whole after monitoring welding at any time
Body truss offset to adjust in time；L-type truss fixing end can give lower road after each structural unit is installed, welded
Civil engineering process carries out the pouring of suspension column concrete secondary；By the principle to get on, get off when circumferential truss installa-tion, in same level
Circumferential truss installa-tion is successively installed and is adjusted in time, control installation accumulated error；
Step 2:L type truss overhangs end installation；
L-type truss fixing end final grouting concrete strength can carry out L-type truss overhanging end when reaching design strength
Installation；L-type truss is installed since the structural unit for having triatic stay to two sides when overhanging end installation, and L-type truss overhangs end peace
Absolute altitude is adjusted using hydraulic jack when dress, is fixed when reaching design height with temporary support；L-type truss overhangs the first of end
It is fixed after truss structure mounting and adjusting with cable wind rope, until next truss structure installs circumferential truss therebetween after the installation is completed,
The construction of next structural unit can be carried out after first stable structural unit of formation；End other structures are overhang in L-type truss
The cable wind rope being arranged in first structural unit in installation process must not be removed；Simultaneously L-type truss overhanging end mark it is radial, cut
To measurement control point or control line, checked at any time；At least lag two is mounted when a certain structural unit largely welds
Structural unit, and after monitoring welding at any time whole truss offset to adjust in time；From L-type purlin when circumferential truss radially installed
One side of frame fixing end is successively installed to L-type truss overhanging end side, and when circumferential direction installation successively installs and timely from centre to two sides
Adjustment, control installation accumulated error；
Step 3: measure bracket is set up；
Measure bracket is made of column steel pipe, support rod and horizontal circumferential support tube, and horizontal circumferential direction support tube at least sets 2
Layer；Measure bracket is set as multistage, uses flanged joint between each section, bottom is fixedly connected by limiting block with concrete structure；Measure
Bracket is supported on beams of concrete or concrete column, sets cable wind rope on measure bracket, cable wind rope and ground it is about at 45 °~60 °
Angle；
4) the main measurement item controlled after being installed includes L-type truss end, measure bracket Support Position, L-type purlin
Frame and the absolute altitude of circumferential truss connecting node position, the absolute altitude of support, whole lateral displacement, planar distortion degree, settling amount, are adopted
With total station observing and controlling；Absolute altitude and the plan-position at control point are determined by calculation first, is arranged in the axial direction using truss
Feature is observation datum mark with a center, two focuses, lays control point on L-type truss and be observed wiring, stringent to survey
Control reduces intermediate controlling unit and accumulated error；
5) point multiple regions carry out, and carry out structure unloading by substep, multiple, the micro decline of circulation principle, realize load
Smooth transfer；According to the deflection value of each Pin L-type truss support location point when whole unloading, it is high that support is reduced by same relative value
Degree；Adjustment section is set at measure bracket and L-type truss link node, is unloaded using jack；When complete unloading, entire room
Lid stands 1~2 day in after free state, then checks the weld seam and key node of L-type truss, circumferential truss, simultaneously
It is unloaded with lateral displacement, absolute altitude and the Deformation Member of total station monitoring L-type truss if any being adjusted in time after overproof analysis reason
The variable quantity in each portion of truss controls within 1.15 times of truss deflection value afterwards；After every detection data all meets design requirement,
Dismounting measure bracket.
Compared with prior art, the beneficial effects of the present invention are:
1) disadvantage for setting up that construction cost brought by all round victory scaffold increases and construction is inconvenient is avoided；
2) steel construction of perimeter support is less, is not necessarily to a large amount of tooling measure bracket and lifting means；Without super-huge
Heavy equipment can lift by crane heavier higher large-scale component；
3) the shoulder camber of L-type truss, and the geometric dimension of every truss structure is different, this is flat in assembly to single Pin main couple
Positioning, fixation on platform propose higher requirement, and it is larger that quality controls difficulty；Every Pin L-type truss is divided into fixation by the present invention
End and overhanging end two parts, reduce installation difficulty；
4) by reasonable disposition crane, required personnel are less；Installation accurate positioning, system easy to control the quality, in-site installation are primary
Qualification rate is high, easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of L-type truss overhanging type steel structure of the present invention.
Fig. 2 is the scheme of installation of L-type truss of the present invention.
In figure: 1. measure bracket, 2. cable wind rope, 3. crawler crane 4.L type truss fixing end 5.L type truss overhangs end 6.
Jack
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
A kind of construction method for L-type truss overhanging type Steel Structure Installation of the present invention, comprises the following processes:
1) main couple of L-type truss overhanging type steel structure, that is, L-type truss is installed using segmentation, the circumferential purlin between L-type truss
Frame uses integral installation；
2) interior circuit and bypass road are set respectively in inside and outside crane operation face, be used for crane lifting walking operations；Such as Fig. 2
Shown, L-type truss fixing end 4 and L-type truss cantilever end 5 stand on bypass road using crawler crane 3 and are installed, and circumferential truss uses
Crawler crane stands on interior circuit or bypass road is installed；
3) construction area is installed by the multiple Work sectors in expansion joint point, segmentation；Specific installation steps are as follows:
Step 1:L type truss fixing end 4 is installed；
The installation of L-type truss fixing end 4 is installed since the unit for having triatic stay to two sides, and stable space is initially formed
Structure is accurately positioned convenient for subsequent structural and reduces accumulated error；It is fixed after mounting and adjusting with cable wind rope, until L-type purlin
Next truss structure of frame fixing end 4 installs circumferential truss therebetween after the installation is completed, after forming first stable structural unit
It can carry out the construction of next structural unit；In 4 other structures installation process of L-type truss fixing end in first structural unit
The cable wind rope of setting must not be removed；Radial, tangential measurement control point or control line are identified in L-type truss fixing end 4 simultaneously, at any time
It is checked；Two mounted structural units are at least lagged when a certain structural unit largely welds, and after monitoring welding at any time
Whole truss offset to adjust in time；L-type truss fixing end 4 can give after each structural unit is installed, welded
Lower road civil engineering process carries out the pouring of suspension column concrete secondary；By the principle to get on, get off when circumferential truss installa-tion, in same level
The circumferential truss installa-tion in face is successively installed and is adjusted in time, control installation accumulated error；
Step 2:L type truss overhangs end 5 and installs；
4 final grouting concrete strength of L-type truss fixing end can carry out L-type truss overhanging end 5 when reaching design strength
Installation；L-type truss, which overhangs when end 5 is installed, to be installed since the structural unit for having triatic stay to two sides, and L-type truss overhangs end
Absolute altitude is adjusted using hydraulic jack when 5 installation, is fixed when reaching design height with temporary support；L-type truss overhangs end 5
It is fixed after first truss structure mounting and adjusting with cable wind rope, until next truss structure installs circumferential purlin therebetween after the installation is completed
Frame can carry out the construction of next structural unit after forming first stable structural unit；It is other at L-type truss overhanging end 5
The cable wind rope being arranged in first structural unit in structure installation process must not be removed；Diameter is identified at L-type truss overhanging end 5 simultaneously
To, tangential measurement control point or control line, checked at any time；At least two are lagged when a certain structural unit largely welds to have pacified
The structural unit of dress, and after monitoring welding at any time whole truss offset to adjust in time；From L when circumferential truss radially installed
4 one side of type truss fixing end is successively installed to L-type truss overhanging 5 side of end, and circumferential direction is successively installed when installing from centre to two sides
And it adjusts in time, control installation accumulated error；
Step 3: measure bracket is set up；
Measure bracket 1 is made of column steel pipe, support rod and horizontal circumferential support tube, and horizontal circumferential direction support tube at least sets 2
Layer；Measure bracket 1 is set as multistage, uses flanged joint between each section, bottom is fixedly connected by limiting block with concrete structure；Measure
Bracket 1 is supported on beams of concrete or concrete column, sets cable wind rope 2 on measure bracket 1, cable wind rope 2 and ground it is about at 45 °~
60 ° of angles；
4) the main measurement item controlled after being installed includes L-type truss end, 1 Support Position of measure bracket, L-type purlin
Frame and the absolute altitude of circumferential truss connecting node position, the absolute altitude of support, whole lateral displacement, planar distortion degree, settling amount, are adopted
With total station observing and controlling；Absolute altitude and the plan-position at control point are determined by calculation first, is arranged in the axial direction using truss
Feature is observation datum mark with a center, two focuses, lays control point on L-type truss and be observed wiring, stringent to survey
Control reduces intermediate controlling unit and accumulated error；
5) point multiple regions carry out, and carry out structure unloading by substep, multiple, the micro decline of circulation principle, realize load
Smooth transfer；According to the deflection value of each Pin L-type truss support location point when whole unloading, it is high that support is reduced by same relative value
Degree；Adjustment section is set at measure bracket 1 and L-type truss link node, is unloaded using jack 6；When complete unloading, entirely
Roof system is in standing 1~2 day after free state, is then checked the weld seam and key node of L-type truss, circumferential truss, together
When with total station monitoring L-type truss lateral displacement, absolute altitude and Deformation Member unloaded if any being adjusted in time after overproof analysis reason
The variable quantity in each portion of truss controls within 1.15 times of truss deflection value after load；Every detection data all meets design requirement
Afterwards, measure bracket 1 is removed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of construction method for L-type truss overhanging type Steel Structure Installation, which is characterized in that comprise the following processes:
1) main couple of L-type truss overhanging type steel structure, that is, L-type truss is installed using segmentation, and the circumferential truss between L-type truss is adopted
Use integral installation；
2) interior circuit and bypass road are set respectively in inside and outside crane operation face, be used for crane lifting walking operations；L-type truss is solid
Fixed end and L-type truss cantilever end stand on bypass road using crawler crane and are installed, and circumferential truss stands on interior circuit using crawler crane
Or bypass road is installed；
3) construction area is installed by the multiple Work sectors in expansion joint point, segmentation；Specific installation steps are as follows:
The installation of step 1:L type truss fixing end；
The installation of L-type truss fixing end is installed since the unit for having triatic stay to two sides, and stable space structure is initially formed,
It is accurately positioned convenient for subsequent structural and reduces accumulated error；It is fixed after mounting and adjusting with cable wind rope, until L-type truss is fixed
Next truss structure at end installs circumferential truss therebetween after the installation is completed, can carry out after forming first stable structural unit
The construction of next structural unit；The cable being arranged in first structural unit in L-type truss fixing end other structures installation process
Wind rope must not be removed；Simultaneously in L-type truss fixing end mark radial direction, tangential measurement control point or control line, checked at any time；
Two mounted structural units are at least lagged when a certain structural unit largely welds, and whole truss is inclined after monitoring welding at any time
Shifting amount to adjust in time；L-type truss fixing end can give lower road civil engineering process after each structural unit is installed, welded
Carry out the pouring of suspension column concrete secondary；By the principle to get on, get off when circumferential truss installa-tion, in the circumferential truss of same level
Installation is successively installed and is adjusted in time, control installation accumulated error；
Step 2:L type truss overhangs end installation；
L-type truss fixing end final grouting concrete strength can carry out the installation at L-type truss overhanging end when reaching design strength；
L-type truss is installed since the structural unit for having triatic stay to two sides when overhanging end installation, and L-type truss overhanging end is adopted when installing
Absolute altitude is adjusted with hydraulic jack, is fixed when reaching design height with temporary support；First truss structure at L-type truss overhanging end
It is fixed after mounting and adjusting with cable wind rope, until next truss structure installs circumferential truss therebetween after the installation is completed, forms the
The construction of next structural unit can be carried out after one stable structural unit；It was installed in L-type truss overhanging end other structures
The cable wind rope being arranged in first structural unit in journey must not be removed；Simultaneously in L-type truss overhanging end mark radial direction, tangential measurement
Control point or control line, are checked at any time；Two mounted structure lists are at least lagged when a certain structural unit largely welds
Member, and after monitoring welding at any time whole truss offset to adjust in time；It is fixed when circumferential truss radially installed from L-type truss
A side is held successively to install to L-type truss overhanging end side, circumferential direction is successively installed to two sides from centre and adjusted in time when installing, and is controlled
System installation accumulated error；
Step 3: measure bracket is set up；
Measure bracket is made of column steel pipe, support rod and horizontal circumferential support tube, and horizontal circumferential direction support tube at least sets 2 layers；It arranges
It applies bracket and is set as multistage, use flanged joint between each section, bottom is fixedly connected by limiting block with concrete structure；Measure bracket branch
Support sets cable wind rope on beams of concrete or concrete column on measure bracket, cable wind rope and ground it is about at 45 °~60 ° of angles；
4) the main measurement item controlled after being installed include L-type truss end, measure bracket Support Position, L-type truss with
The absolute altitude of circumferential truss connecting node position, the absolute altitude of support, whole lateral displacement, planar distortion degree, settling amount, using complete
It stands instrument observing and controlling；Absolute altitude and the plan-position at control point are determined by calculation first, the characteristics of arrangement in the axial direction using truss,
It is observation datum mark with a center, two focuses, lays control point on L-type truss and be observed wiring, stringent observing and controlling subtracts
Few intermediate controlling unit and accumulated error；
5) point multiple regions carry out, and carry out structure unloading by substep, multiple, the micro decline of circulation principle, realize the flat of load
Steady transfer；According to the deflection value of each Pin L-type truss support location point when whole unloading, bearing height is reduced by same relative value；
Adjustment section is set at measure bracket and L-type truss link node, is unloaded using jack；When complete unloading, entire roof system
After free state, 1~2 day is stood, then the weld seam and key node of L-type truss, circumferential truss are checked, used simultaneously
Total station monitors lateral displacement, absolute altitude and the Deformation Member of L-type truss, if any adjusting in time after overproof analysis reason, after unloading
The variable quantity in each portion of truss controls within 1.15 times of truss deflection value；After every detection data all meets design requirement, tear open
Except measure bracket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381071.5A CN109372268A (en) | 2018-11-20 | 2018-11-20 | A kind of construction method for L-type truss overhanging type Steel Structure Installation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811381071.5A CN109372268A (en) | 2018-11-20 | 2018-11-20 | A kind of construction method for L-type truss overhanging type Steel Structure Installation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900393A (en) * | 2019-03-19 | 2019-06-18 | 中国十七冶集团有限公司 | A kind of safety monitoring method of steel reinforced concrete vestibule and its steel truss ruggedized construction |
| CN110185185A (en) * | 2019-07-08 | 2019-08-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of cantilever frame space structure system |
| CN110806194A (en) * | 2019-12-04 | 2020-02-18 | 中国十七冶集团有限公司 | Steel truss deformation monitoring and measuring method |
| CN111501997A (en) * | 2020-04-23 | 2020-08-07 | 贵州建工集团第四建筑工程有限责任公司 | Steel truss structure construction method applied to stadium |
| CN111827691A (en) * | 2020-07-13 | 2020-10-27 | 中国建筑第八工程局有限公司 | Method for constructing stadium |
| CN113404329A (en) * | 2021-06-15 | 2021-09-17 | 中建科工集团有限公司 | Unloading method of temporary support structure |
| CN113482345A (en) * | 2021-06-30 | 2021-10-08 | 上海宝冶集团有限公司 | Hydraulic synchronous unloading construction method for steel structure support tower group |
| CN113719139A (en) * | 2021-10-13 | 2021-11-30 | 中建八局第二建设有限公司 | Construction method for hoisting irregular space net rack of stadium |
| CN115199051A (en) * | 2022-07-22 | 2022-10-18 | 中建八局新型建造工程有限公司 | Construction method of football court large-span awning |
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2018
- 2018-11-20 CN CN201811381071.5A patent/CN109372268A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900393A (en) * | 2019-03-19 | 2019-06-18 | 中国十七冶集团有限公司 | A kind of safety monitoring method of steel reinforced concrete vestibule and its steel truss ruggedized construction |
| CN110185185A (en) * | 2019-07-08 | 2019-08-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of cantilever frame space structure system |
| CN110185185B (en) * | 2019-07-08 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | Cantilever truss space structure system |
| CN110806194A (en) * | 2019-12-04 | 2020-02-18 | 中国十七冶集团有限公司 | Steel truss deformation monitoring and measuring method |
| CN111501997A (en) * | 2020-04-23 | 2020-08-07 | 贵州建工集团第四建筑工程有限责任公司 | Steel truss structure construction method applied to stadium |
| CN111827691A (en) * | 2020-07-13 | 2020-10-27 | 中国建筑第八工程局有限公司 | Method for constructing stadium |
| CN113404329A (en) * | 2021-06-15 | 2021-09-17 | 中建科工集团有限公司 | Unloading method of temporary support structure |
| CN113482345A (en) * | 2021-06-30 | 2021-10-08 | 上海宝冶集团有限公司 | Hydraulic synchronous unloading construction method for steel structure support tower group |
| CN113719139A (en) * | 2021-10-13 | 2021-11-30 | 中建八局第二建设有限公司 | Construction method for hoisting irregular space net rack of stadium |
| CN113719139B (en) * | 2021-10-13 | 2022-09-30 | 中建八局第二建设有限公司 | Construction method for hoisting irregular space net rack of stadium |
| CN115199051A (en) * | 2022-07-22 | 2022-10-18 | 中建八局新型建造工程有限公司 | Construction method of football court large-span awning |
| CN115199051B (en) * | 2022-07-22 | 2024-04-16 | 中建八局新型建造工程有限公司 | Construction method of football field large-span awning |
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Application publication date: 20190222 |