CN103046754A - Construction method for abutting high-altitude long-span roof pipe trusses by adjustable temporary support - Google Patents
Construction method for abutting high-altitude long-span roof pipe trusses by adjustable temporary support Download PDFInfo
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- CN103046754A CN103046754A CN2011103096591A CN201110309659A CN103046754A CN 103046754 A CN103046754 A CN 103046754A CN 2011103096591 A CN2011103096591 A CN 2011103096591A CN 201110309659 A CN201110309659 A CN 201110309659A CN 103046754 A CN103046754 A CN 103046754A
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Abstract
Provided is a construction method for abutting high-altitude long-span roof pipe trusses by an adjustable temporary support. The device comprises a standard section support frame (1), an adjustable support (2), a conversion platform (3), beams (4), a hinged shoe (5), nuts (6), batten plates (7), adjustable supporting leg (8), U-shaped fixing bolts (9), a support (10), arc support plates (11), lower chord tubes (12) and upper chord tubes (13). When the adjustable temporary support is used for abutting the pipe trusses, positioning control is utilized in high-latitude contact and assembly welding of large proof pipe trusses, so that the pipe trusses are subjected to assembly welding in a force-free state, the utilization rate of a crane is greatly increased, accuracy and quality of welding are guaranteed, the construction speed is increased, and risk factors and potential safety hazards caused when the pipe trusses are suspended by the crane for abutting can be reduced. Besides, the structure is simple, the generality is high, and construction cost can be saved.
Description
Technical field
The present invention relates to International Classification of Patents E04G scaffold or construction equipment or other building auxiliary equipment and structure installation Technology, the meet and discuss adjustable temporary supporting high-altitude long-span roofing pipe truss docking job practices of welded and installed of especially applicable high-altitude long-span roofing inverted triangle pipe truss high-altitude.
Background technology
In the known technology, truss (truss), the plane that generally has triangular element or the space structures that are formed by straight-bar.Under load action, truss member mainly bears axial tension or pressure, thereby can take full advantage of the intensity of material, comparable solid web girder is saved material when span is larger, alleviate deadweight and increase rigidity, so be applicable to load-carrying members and tall and slender structure than large span, such as roof truss, bridge, power transmission line column, satellite launching tower, hydraulic gate, gantry etc.Commonly used have steel truss, reinforced concrete truss, prestressed concrete truss, timber truss, steel and wooden composite roof truss, a Steel concrete composite roof truss.Truss divides by profile triangular truss, parallel chord truss, polygonal truss, parallel chord truss, and Vierendeel truss.When selecting truss form, should consider purposes, material, support pattern and the execution conditions of truss, satisfying under the prerequisite of instructions for use, make every effort to make and install used material and the amount of labour for minimum.
Triangular truss is under the equally distributed joint load along span, and the axle power of top-bottom chord is maximum at the end points place, reduces gradually to span centre; The axle power of web member is then opposite.Triangular truss is because chord member internal force difference is larger, and material consumption is reasonable not, and is multiplex in the roof truss of tiled roof.
Roofing pipe truss is installed is mostly directly adopted the crane group to installation, but for the roofing of tens meters even up to a hundred meters spans, must carry out sectional, this just must dock assembly unit at the segmented node place.At present, conventional method is to set up temporary operating platform below docking point, lower chord tube only is set on the operating platform usually supports, and adjusts wind up pipe height and truss position by the crane suspention, and crane continues to suspend in midair after the docking welding is finished, and removes crane.Usually finishing one section butt welding needs 1-2 hour, changes such as weather during this period, and danger is very large.Therefore adopt this kind method, merging precision, work effect and crane utilization rate are all lower during construction, and restricted by the factor such as weather, have virtually increased hazards and construction cost.
Relevant open source literature is less, such as 200,780,040,204 1 kinds of lattice supporting frameworks of number of patent application, described lattice supporting framework comprises in hinged way interconnected trussmember, wherein, lattice supporting framework has along the trussmember of the longitudinal extension of described lattice supporting framework (10) and the truss frame for connecting member (20 that connects described member (10), 30), truss frame for connecting member (20,30) be connected to directly or indirectly the trussmember (10) that extends longitudinally, so that when described lattice supporting framework is folding, can reduce and when described lattice supporting framework launches, can increase along the spacing between the trussmember (10) of the longitudinal extension of lattice supporting framework.
Steel supporting platform when 201,020,546,453 1 kinds of number of patent applications are used for long-span special English truss segmental hoisting.Comprise the coagulation earthen platform, pre-plugged has the steel embedded part on concrete important actor top, and four counter-force fulcrums are set, and with steel pipe support the discrepancy in elevation of four counter-force fulcrums on the concrete grandstand capital is carried out leveling, and utilizes the case beam to form a underframe.Weldering around the steel embedded part of the upper pre-plugged of underframe supporting leg and concrete important actor top, weld bead height 12mm, weldering around steel pipe support and case beam etc. are strong, weld bead height 12mm.
The supporting apparatus of number of patent application 200920207596 steel structure hoistings construction, comprise upper support bar and lower support bar, the top of described upper support bar is the support end of fixed support truss, the bottom of lower support bar is the hinged end that is connected with ground, is provided with the governor motion of regulating two bar height between the upper end of the bottom of described upper support bar and lower support bar.
Yet, in published patent application, do not find the relevant technical scheme of improving.
Summary of the invention
The purpose of this invention is to provide a kind of can guarantee to construct the time quality and safety, accelerated construction speed, improve simultaneously the crane utilization rate, the adjustable temporary supporting high-altitude long-span roofing pipe truss docking job practices of reducing construction cost.
Goal of the invention of the present invention realizes by following technical measures: job practices comprises the steps:
1., determine temporary supporting point position, below temporary supporting point, set up interim standard knot bracing frame;
2., interim standard knot bracing frame upper flange connects adjustable seats;
3., the adjustable seats top is connected with the conversion platform flange;
4., welding beam on conversion platform;
5., the middle side part welding is used for supporting the arc fagging of lower chord tube on the crossbeam, two ends connect the rigidity adjustable support leg by fixed-hinged support;
6., regulate lower chord tube strong point absolute altitude by conversion platform below adjustable seats;
7., adopt crane lifting pipe truss, the lower chord tube of plan butt tube truss is hung lentamente on the arc fagging; Control valve truss balance, the pipe position and adjust rigidity adjustable support leg angle near the pipe that winds up of determining to wind up is fixed on the adjustable support leg with U-bolt and the high-strength nut pipe that will wind up;
8., determine that pipe truss position removes crane after errorless;
9., begin to manage the butt welding of meeting and discussing of truss high-altitude;
10., treat all to manage that truss welding is finished and after the assay was approved, adjust adjustable seats operating platform unloaded;
The invention has the beneficial effects as follows: use adjustable temporary supporting butt tube truss, positioning control when assembly welding is met and discussed in Large-scale Roof pipe truss high-altitude, make pipe truss assembly welding under the non-stress state, increased substantially the utilization rate of crane, precision and the quality of welding have been guaranteed, accelerated construction speed, hazards and potential safety hazard when having reduced crane suspention docking.Have features simple structure, versatility and save more by force, simultaneously the advantage of construction cost.
Description of drawings
Fig. 1 is temporary support structure schematic diagram among the present invention
Fig. 2 is scheme of installation of the present invention
Standard knot bracing frame 1, adjustable seats 2, conversion platform 3, crossbeam 4, hinged-support 5, nut 6, batten plate 7, adjustable support leg 8, U-shaped set bolt 9, bearing 10, arc fagging 11, lower chord tube 12, pipe 13 winds up;
The specific embodiment
Implement to comprise in the main device of the present invention standard knot bracing frame 1, adjustable seats 2, conversion platform 3, crossbeam 4, hinged-support 5, nut 6, batten plate 7, adjustable support leg 8, U-shaped set bolt 9, bearing 10, arc fagging 11, lower chord tube 12 and the pipe 13 that winds up.
Job practices comprises the steps:
1., determine temporary supporting point position, below temporary supporting point, set up interim standard knot bracing frame 1;
2., interim standard knot bracing frame 1 upper flange connects adjustable seats 2;
3., adjustable seats 2 tops are connected with conversion platform 3 flanges;
4., welding beam 4 on conversion platform 3;
5., the middle side part welding is used for supporting the arc fagging 11 of lower chord tube 12 on the crossbeam 4, two ends connect rigidity adjustable support legs 8 by fixed-hinged support 5;
6., regulate lower chord tube 12 strong point absolute altitudes by conversion platform 3 below adjustable seats 2;
7., adopt crane lifting pipe truss, the lower chord tube of plan butt tube truss is hung lentamente on arc fagging 11; Control valve truss balance, will wind up with U-bolt 9 and high-strength nut 6 and to manage 13 and be fixed on the adjustable support leg 8 in pipe 13 positions and adjust rigidity adjustable support leg 8 angles near the pipe 13 that winds up of determining to wind up;
8., determine that pipe truss position removes crane after errorless;
9., begin to manage the butt welding of meeting and discussing of truss high-altitude;
10., treat all to manage that truss welding is finished and after the assay was approved, adjust 2 pairs of operating platforms unloadings of adjustable seats;
Remove operating platform, and remove temporary support, collect in order to using next time.
The embodiment of the invention adopts adjustable seats 2 flanges to connect temporary support and shaped steel conversion platform 3, can the Adjustment operation podium level, and, can after finishing, welding unload again the shifting out of handled easily platform with accurate control strong point absolute altitude; Adopt and fixedly be hinged rigid leg 8 and conversion platform, and 13 be fixed on the rigid leg 8 by U-bolt 9 pipe that will wind up, U-bolt 9 can be at rigidity adjustable support leg 8 middle slidable adjustment height, realize the support angle and the adjustable of pipe 13 permanent positions of winding up of supporting leg, guaranteed the stability and the docking location precision that support.
After the present invention uses, after crane will be intended the butt tube truss and hang the permanent position and adopt temporary supporting fixing, just can remove and other is managed truss carry out handling, increase substantially the utilization rate of crane, and reduced hazards.
The interim assembly unit standard knot of embodiment of the invention bracing frame 1, adjustable seats 2, conversion platform 3, crossbeam 4, lower chord tube arc fagging 11, twisted branch seat 5, rigidity adjustable support leg 8, U-shaped set bolt 9.
Embodiment of the invention processing and making process is as follows:
1., interim assembly unit standard knot bracing frame 1 adopts finished product standard knot bracket assembled;
2., adjustable seats 2 adopts welding internal thread sleeve pipe on the flange in the bottom sheets, wears high-strength bolt in the sleeve pipe, high-strength bolt is by movable ball strand and the welding of upper flange sheet, the ball strand is welded with the high-strength bolt junction and regulates the spiral shell handle;
3., shaped steel conversion platform 3 employing shaped steel are spliced into " day " font, size and standard knot bracing frame 1 size coupling;
4., shaped steel crossbeam 4 is made of single shaped steel, length and shaped steel conversion platform 3 are with wide;
5., lower chord tube arc fagging 11 adopts steel weldings to be connected into " H " shape, cross-arm welds curved plate at " H " middle part, the curved plate both sides respectively are welded with two block plate stiffeners;
6., that fixed-hinged support 5 adopts steel plates to be processed into the bottom is square, top is semicircle, the semicircle circle centre position is opened circular hole, can wear peg and connect rigidity adjustable support leg 8;
7., 8 two channel-section steels of adjustable support leg adopt back-to-back "] [" form, the centre is left and the same broad gap of fixed-hinged support 5 thickness, connects together along the every 50cm welding of short transverse by batten plate 7, circular hole is opened in the bottom, can wear peg and be connected with fixed-hinged support 5;
8., U-shaped set bolt 9 adopts bolts to be processed into, segmental arc internal diameter and pipe truss pipe 13 external diameters that wind up are identical, the flat segments mantle fiber attaches high-strength nut 6 and backing plate;
Embodiment of the invention implementation step is as follows:
1., determine the position of temporary supporting point below temporary supporting point, to set up interim assembly unit standard knot bracing frame 1;
2., interim assembly unit standard knot bracing frame 1 top connects adjustable seats 2 by flange;
3., adjustable seats 2 connects shaped steel conversion platform 3 by flange;
4., weld type gooseneck 4 on shaped steel conversion platform 3;
5., shaped steel crossbeam 4 middle parts welding lower chord tube arc fagging 11, shaped steel crossbeam 4 two ends are welded and fixed hinged-support 5;
6., peg is connected and fixed hinged-support 5 and rigidity adjustable support leg 8;
7., adjust adjustable seats 2 and regulate lower chord tube arc fagging 11 absolute altitudes;
8., adopt crane lifting pipe truss, slowly loosen lifting rope and hang on lower chord tube arc fagging 11 intending butt tube truss lower edge, when lifting rope does not stress, stop slack rope;
9., adjust plan butt tube truss balance and the pipe absolute altitude that winds up;
10., by the angle that fixed-hinged support 5 is regulated rigidity adjustable support legs 8, make it from the outside near the pipe 13 that winds up, block with U-shaped set bolt 9 and wind up pipe 13 and pass adjustable support leg 8 that to pass through high-strength nut 6 fastening in "] [" gap back-to-back;
Remove the pipe truss and dock adjustable temporary supporting, and remove interim assembly unit standard knot bracing frame 1.
The embodiment of the invention scope of application: when assembly welding is met and discussed in Large-scale Roof pipe truss high-altitude, use temporary supporting that the pipe truss is accurately located, improve welding precision and efficiency.
Claims (4)
1. adjustable temporary supporting high-altitude long-span roofing pipe truss docks job practices, and it is characterized in that: job practices comprises the steps:
1., determine temporary supporting point position, below temporary supporting point, set up interim standard knot bracing frame (1);
2., interim standard knot bracing frame (1) upper flange connects adjustable seats (2);
3., adjustable seats (2) top is connected with conversion platform (3) flange;
4., at the upper welding beam (4) of conversion platform (3);
5., the upper middle side part welding of crossbeam (4) is used for supporting the arc fagging (11) of lower chord tube (12), two ends connect rigidity adjustable support leg (8) by fixed-hinged support (5);
6., regulate lower chord tube (12) strong point absolute altitude by conversion platform (3) below adjustable seats (2);
7., adopt crane lifting pipe truss, the lower chord tube of plan butt tube truss is hung lentamente on arc fagging (11); Control valve truss balance, determine to wind up pipe (13) position and adjust rigidity adjustable support leg (8) angle near the pipe (13) that winds up is fixed on the adjustable support leg (8) with U-bolt (9) and high-strength nut (6) pipe (13) that will wind up;
8., determine that pipe truss position removes crane after errorless;
9., begin to manage the butt welding of meeting and discussing of truss high-altitude;
10., treat all to manage that truss welding is finished and after the assay was approved, adjust adjustable seats (2) operating platform unloaded;
2. adjustable temporary supporting high-altitude long-span roofing pipe truss docking job practices as claimed in claim 1 is characterized in that conversion platform (3), crossbeam (4), bearing (5) and arc fagging (11) are made by shaped steel.
3. adjustable temporary supporting high-altitude long-span roofing pipe truss as claimed in claim 1 docks job practices, it is characterized in that, device comprises, standard knot bracing frame (1), adjustable seats (2), conversion platform (3), crossbeam (4), hinged-support (5), nut (6), batten plate (7), adjustable support leg (8), U-shaped set bolt (9), bearing (10), arc fagging (11), lower chord tube (12) and the pipe (13) that winds up.
4. adjustable temporary supporting high-altitude long-span roofing pipe truss as claimed in claim 1 docks job practices, it is characterized in that processing and making process is as follows:
1., interim assembly unit standard knot bracing frame (1) adopts finished product standard knot bracket assembled;
2., adjustable seats (2) adopts welding internal thread sleeve pipe on the flange in the bottom sheet, wears high-strength bolt in the sleeve pipe, high-strength bolt is connected with the upper flange sheet by the movable ball strand, ball strand and high-strength bolt junction are welded with adjusting spiral shell handle;
3., shaped steel conversion platform (3) employing shaped steel is spliced into " day " font, size and standard knot size coupling;
4., shaped steel crossbeam (4) is made of single shaped steel, length and shaped steel conversion platform (3) are with wide;
5., lower chord tube arc fagging (11) adopts steel welding to be connected into " H " shape, cross-arm welds curved plate at " H " middle part, the curved plate both sides respectively are welded with two block plate stiffeners;
6., that fixed-hinged support (5) adopts steel plate to be processed into the bottom is square, top is semicircle, the semicircle circle centre position is opened circular hole, can wear peg and connect rigidity adjustable support leg (8);
7., (8) two channel-section steels of adjustable support leg adopt back-to-back "] [" form, the centre is left and the same broad gap of fixed-hinged support (5) thickness, connect together along the every 50cm welding of short transverse by batten plate (7), circular hole is opened in the bottom, can wear peg and be connected with fixed-hinged support (5);
8., U-shaped set bolt (9) adopts bolt to be processed into, segmental arc internal diameter and pipe truss pipe (13) external diameter that winds up is identical, the flat segments mantle fiber attaches high-strength nut (6) and backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103096591A CN103046754A (en) | 2011-10-13 | 2011-10-13 | Construction method for abutting high-altitude long-span roof pipe trusses by adjustable temporary support |
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| CN2011103096591A CN103046754A (en) | 2011-10-13 | 2011-10-13 | Construction method for abutting high-altitude long-span roof pipe trusses by adjustable temporary support |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735656A (en) * | 2016-04-05 | 2016-07-06 | 甘肃建投钢结构有限公司 | Overhead butting and fixing bracket for large-cantilever space pipe truss structure |
| CN106639358A (en) * | 2017-01-20 | 2017-05-10 | 中建钢构有限公司 | Inverted triangle truss supporting structure and method utilizing same for assembling inverted triangle truss |
| CN106703381A (en) * | 2017-02-09 | 2017-05-24 | 大连中远船务工程有限公司 | Super long span without supporting truss walking board |
| CN107023075A (en) * | 2017-05-03 | 2017-08-08 | 浙江中南建设集团钢结构有限公司 | A kind of interim control method of assembled steel truss installa-tion lateral stability |
| CN107542274A (en) * | 2017-09-22 | 2018-01-05 | 浙江中益建材科技有限公司 | A kind of assembling device and assemble method |
| CN109779269A (en) * | 2019-03-21 | 2019-05-21 | 中冶建工集团有限公司 | Large-span truss segmental hoisting high-altitude closes up measure device and construction method |
| CN111502106A (en) * | 2020-05-29 | 2020-08-07 | 上海建工四建集团有限公司 | Temporary supporting system of suspension structure |
| CN111593895A (en) * | 2020-05-29 | 2020-08-28 | 中冶天工集团有限公司 | Adjustable assembly jig frame for large-span variable-cross-section inverted triangular pipe truss |
| CN112081390A (en) * | 2020-09-16 | 2020-12-15 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN113102923A (en) * | 2021-04-21 | 2021-07-13 | 中国十七冶集团有限公司 | Method for air butt joint of straight elbow pipe and straight pipe of medium-small pipe diameter long transmission line |
| CN113202280A (en) * | 2021-04-21 | 2021-08-03 | 中交第四公路工程局有限公司 | Conversion bracket type steel structure for steel structure high-altitude construction and construction method thereof |
| CN113958074A (en) * | 2021-11-29 | 2022-01-21 | 中冶建工集团有限公司 | Method for mounting bottom tile of roof of tall and big factory building |
| CN114541354A (en) * | 2022-03-24 | 2022-05-27 | 中船黄埔文冲船舶有限公司 | Assembly positioning method for jacket side sheet body |
| CN114592718A (en) * | 2022-03-30 | 2022-06-07 | 浙江东南网架股份有限公司 | Supporting structure for sectional hoisting of triangular pipe truss and supporting method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735656A (en) * | 2016-04-05 | 2016-07-06 | 甘肃建投钢结构有限公司 | Overhead butting and fixing bracket for large-cantilever space pipe truss structure |
| CN106639358A (en) * | 2017-01-20 | 2017-05-10 | 中建钢构有限公司 | Inverted triangle truss supporting structure and method utilizing same for assembling inverted triangle truss |
| CN106703381A (en) * | 2017-02-09 | 2017-05-24 | 大连中远船务工程有限公司 | Super long span without supporting truss walking board |
| CN107023075A (en) * | 2017-05-03 | 2017-08-08 | 浙江中南建设集团钢结构有限公司 | A kind of interim control method of assembled steel truss installa-tion lateral stability |
| CN107542274A (en) * | 2017-09-22 | 2018-01-05 | 浙江中益建材科技有限公司 | A kind of assembling device and assemble method |
| CN109779269B (en) * | 2019-03-21 | 2024-02-09 | 中冶建工集团有限公司 | Large-span truss sectional hoisting high-altitude folding measure device and construction method |
| CN109779269A (en) * | 2019-03-21 | 2019-05-21 | 中冶建工集团有限公司 | Large-span truss segmental hoisting high-altitude closes up measure device and construction method |
| CN111502106A (en) * | 2020-05-29 | 2020-08-07 | 上海建工四建集团有限公司 | Temporary supporting system of suspension structure |
| CN111593895A (en) * | 2020-05-29 | 2020-08-28 | 中冶天工集团有限公司 | Adjustable assembly jig frame for large-span variable-cross-section inverted triangular pipe truss |
| CN111502106B (en) * | 2020-05-29 | 2021-06-08 | 上海建工四建集团有限公司 | Temporary supporting system of suspension structure |
| CN112081390A (en) * | 2020-09-16 | 2020-12-15 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN112081390B (en) * | 2020-09-16 | 2021-12-14 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN113202280A (en) * | 2021-04-21 | 2021-08-03 | 中交第四公路工程局有限公司 | Conversion bracket type steel structure for steel structure high-altitude construction and construction method thereof |
| CN113102923A (en) * | 2021-04-21 | 2021-07-13 | 中国十七冶集团有限公司 | Method for air butt joint of straight elbow pipe and straight pipe of medium-small pipe diameter long transmission line |
| CN113958074A (en) * | 2021-11-29 | 2022-01-21 | 中冶建工集团有限公司 | Method for mounting bottom tile of roof of tall and big factory building |
| CN114541354A (en) * | 2022-03-24 | 2022-05-27 | 中船黄埔文冲船舶有限公司 | Assembly positioning method for jacket side sheet body |
| CN114592718A (en) * | 2022-03-30 | 2022-06-07 | 浙江东南网架股份有限公司 | Supporting structure for sectional hoisting of triangular pipe truss and supporting method thereof |
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Application publication date: 20130417 |