CN103061506B - Construction method of steel structure dome - Google Patents
Construction method of steel structure dome Download PDFInfo
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- CN103061506B CN103061506B CN201210591750.1A CN201210591750A CN103061506B CN 103061506 B CN103061506 B CN 103061506B CN 201210591750 A CN201210591750 A CN 201210591750A CN 103061506 B CN103061506 B CN 103061506B
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Abstract
The invention provides a construction method of a steel structure dome. The construction method comprises (a) manufacture a steel member and marking welding points on the steel member; (b) arranging a plurality of parallel slides and assembling a tool bridge on the slides to fix; (c) installing a flexible connection, diving a basic ring beam into a plurality of sections, using a hanging unit to lift each section piece of the basic ring beam above the flexible connection to conduct assembly welding; (d) fixing a central column above the tool bridge and installing a support piece at the top end of the central column; (e) lifting a top ring beam to the position above a ring beam bracket, locating and fixing the top ring beam, and completely installing main arc-shaped beams pair by pair gradually; (f) lifting an auxiliary ring beam, welding the auxiliary ring beam on welding points on the main arc-shaped beam, and completely installing auxiliary arc-shaped beams gradually; (g) lifting a horizontal ring beam and welding the horizontal ring beam on welding points of the main arc-shaped beams and the auxiliary arc-shaped beams; (h) repeating the step (g) until the horizontal ring beam between the basic ring beam and the auxiliary ring beam are completely installed form bottom to top; and (i) disassembling the support piece, the central column and the tool bridge.
Description
Technical field
The present invention relates to building field, specifically, relate to a kind of construction method of steel structure dome.
Background technology
Dome type structure refers to hemisphere space or the area of pendency, is usually structured in the top of building such as public place and large stadium.Steel structure dome refers to that all radial girders of dome and hoop beam form by steel-pipe welding.The advantages such as steel structure member has from heavy and light, quick for installation, anti-seismic performance good, low in the pollution of the environment, steel structure dome has the advantages such as inner space is large, strength and stability good, modern design is attractive in appearance, therefore, steel structure dome extremely architect's favor.Fig. 1 shows the top view of a steel structure dome example, as shown in Figure 1, dome type structure is made up of steel beam column 10, it comprise apical ring beam 11, secondary ring beam 12, basic ring beam 13, many horizontal ring beams 14,15, many minor arc ellbeams 16 and many Curved beams 17.Wherein, all Curved beams and ring beam are formed by steel pipe, are welded to connect between each crossover node.
In the work progress of existing steel structure dome, adopt full hall scaffold technique, the temporary structure frame namely set up on a large scale in the inside of steel structure dome.Fig. 2 shows full hall scaffold front schematic view in prior art.As shown in Figure 2, full hall scaffold generally includes horizon bar 110, vertical rod 120, fastener 130, bar 140 of sweeping the floor, little cross bar 150 and bridging 160.The erection construction step of full hall scaffold comprises: a) according to design drawing, puts bar 150 of sweeping the floor; B) establish vertical rod 120, vertical rod 120 and bar 150 of sweeping the floor are adopted fastener 130 fastening; C) little cross bar 150 of sweeping the floor is installed, little cross bar 150 is adopted fastener 130 fastening with vertical rod 120 or bar 140 of sweeping the floor; D) horizon bar 110 is installed, horizon bar 110 and vertical rod 120 are adopted fastener 130 fastening; E) repeat step c) and step d), install to all horizon bars 110; F) bridging 160 is installed.Different according to the rational height of full hall scaffold, to horizon bar 110, vertical rod 120, the detailing requiments of bar 150 of sweeping the floor is also different, to vertical rod step pitch, and vertical rod advance, vertical rod transfer, horizontal bearing diagonal, the requirement of the parameters such as bridging setting position and angle is also not quite similar.In addition, set up with in demolishing process at scaffold, usually adopt the assembling of large-scale crane or transmit each component.
The shortcoming of this method is, adopt large-scale crane to assemble and full hall scaffold, on the one hand, need a large amount of manpowers and construction period when setting up and remove full hall scaffold, and high-altitude is set up scaffold and had potential safety hazard, support caves in and can cause security incident; On the other hand, adopt large-scale crane during transmission member, crane cost adds construction cost.
Summary of the invention
The present invention makes to solve the problem.Specifically, the object of the invention is to, a kind of construction method of steel structure dome is provided, make, in the construction of steel structure dome, can not full hall scaffold be used, save and set up and remove scaffold manpower used and construction period, and large-scale crane can not be adopted, save construction cost.
To achieve these goals, the invention provides a kind of construction method of steel structure dome, the method comprises: a) make steel beam column, marks pad according to design in advance on described steel beam column; B) many parallel slideways are set, slide onto the center superposition of this instrument bridge center and apical ring beam, fixing described instrument bridge by assembled for instrument bridge to described slideway; C) install above the structure completed in advance and flexibly connect, basic ring beam is divided into some sections, and flexibly connect top described in the segment of this basic ring beam being lifted into hanging unit and carry out Combination Welding; D) be fixed to by central post above described instrument bridge, install support member on this central post top, this support member comprises operating platform, several jack and ring beam bracket, is fixed to by described jack between described operating platform and described ring beam bracket; E) described apical ring beam is winched to above described ring beam bracket, locate and fix described apical ring beam; To sling relative two the minor arc ellbeams in position, the two ends of described minor arc ellbeam are welded to the pad on described apical ring beam and described basic ring beam, in pairs described minor arc ellbeam are installed; F) to sling time ring beam, this ring beam is welded to the pad on described minor arc ellbeam; To sling time Curved beam, the two ends of this Curved beam are welded to the pad on described ring beam and described basic ring beam, seriatim described Curved beam are installed; G) to sling horizontal ring beam, this horizontal ring beam is welded to the pad on described minor arc ellbeam and described Curved beam; H) repeat step g), install from bottom to top to the horizontal ring beam between described basic ring beam and described ring beam; I) support member, central post and instrument bridge is unloaded.
Preferably, described instrument bridge comprises two parallel steel trusss, by Bolted angle connection between described steel truss.
Preferably, flexibly connect described in as neoprene bearing.
Preferably, described hanging unit is tower crane.
In addition, preferably, described central post is that some joint standard section of tower cranes connect and form.
From description above with put into practice, by the construction using instrument bridge and intermediolateral column and support member to carry out apical ring beam, braced structures is simple, installation accuracy is high, full hall scaffold technique can be replaced, save and set up and remove the duration and expense that full hall scaffold takies, thus save engineering time and construction cost; And instrument bridge is that two steel trusss are assembled, and installation can remove recycling; Central post is standard section of tower crane, need not make in addition, all recyclable recycling.Adopt tower crane as the vertical fortune instrument of lifting, large-scale crane can be replaced, save construction cost.In addition, the construction method of steel structure dome of the present invention, is also applicable to dismounting and the transformation of old dome structure, and the construction of super highrise building top moulding.
Accompanying drawing explanation
Fig. 1 shows the top view of a steel structure dome example;
Fig. 2 shows full hall scaffold front schematic view in prior art;
Fig. 3 shows the top view of an instrument bridge of the present invention slippage example in place;
Fig. 4 shows the schematic diagram of central post of the present invention and a support member example; And
Fig. 5 shows the schematic diagram of support member of the present invention.
Detailed description of the invention
The embodiment of the construction method of steel beam column dome of the present invention is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.In addition, in this manual, identical Reference numeral represents same or analogous part.
The construction method of steel beam column dome of the present invention comprises the steps:
A) make steel beam column 10, this steel beam column 10 comprise apical ring beam 11, secondary ring beam 12, basic ring beam 13, many horizontal ring beams 14,15, many minor arc ellbeams 16 and many Curved beams 17.Steel beam column 10 marks the welding node between each steel beam column 10, basic ring beam 13 marks the pad with all minor arc ellbeams 16 and time Curved beam 17, apical ring beam 11 marks the pad with all minor arc ellbeams 16, secondary ring beam 12 marks the pad with all minor arc ellbeams 16 and time Curved beam 17, many horizontal ring beams 14,15 mark the pad with all minor arc ellbeams 16 and secondary Curved beam 17.As shown in Figure 1.
B) many parallel dragging tracks 21,22 are set, by assembled for instrument bridge 30 on this dragging track 21,22, drag the two ends of this instrument bridge 30 simultaneously, by the center P2 slippage of instrument bridge 30 from initial position P1 along dragging track 21,22 to steel structure dome, when the center superposition of the center of instrument bridge 30 and apical ring beam 11, setting tool bridge 30.Preferably, described instrument bridge 30 comprises two parallel steel trusss 31,32, is connected as one between steel truss 31,32 by angle steel 33.As shown in Figure 3.
C) above the structure completed in advance, installation flexibly connects 40, for the weight of supporting steel component 10, and provides good elasticity, to adapt to the shear strain of steel beam column 10; Preferably, 40 employing neoprene bearings are flexibly connected.Basic ring beam 13 is divided into the segment of some segment base plinth ring beams 13, adopts hanging unit 50 segment of basic ring beam 13 to be lifted into and flexibly connect above in the of 40, each segment is spliced into basic ring beam 13, be fixed welding by after adjacent segment interface docking; Preferably, described hanging unit 50 is tower crane.
D) as shown in Figure 4, be fixed on the crossbeam of instrument bridge 30 by central post 60 bottom, the top of this central post 60 is fixed to ground with four with the cable wind rope 61 of decile directional spreding; On the top of central post 60, support member 70 is installed, this support member 70 is for support top ring beam 11, support member 70 comprises operating platform 71, by the center throw of apical ring beam 11 on this operating platform 71, four jack 72 are arranged on this operating platform 71, ring beam bracket 73 is welded to above jack 72.Preferably, central post 60 forms for some joint standard section of tower cranes connect, and does not need other making, recycling after removing.
Fig. 5 shows support member schematic diagram of the present invention, as shown in Figure 5, four jack 72 with four decile directions between operating platform 71 and ring beam bracket 73, to there is slippage because of unbalance stress in order to avoid ring beam bracket 73 or topple, operating platform 71 is connected 74 with ring beam bracket 73 bolt, when the stressed lifting of jack 72, bolt connects 74 can make ring beam bracket 73 can trim locations.
E) with hanging unit 50, apical ring beam 11 is winched on ring beam bracket 73, according to the center of Design Orientation apical ring beam 11 in advance, apical ring beam 11 is fixed on ring beam bracket 73, to sling two minor arc ellbeams 16, article two, the installation site of minor arc ellbeam 16 is relative, one end port of minor arc ellbeam 16 is welded to the pad on apical ring beam 11, other end port is welded to the pad on basic ring beam 13, is installed by all minor arc ellbeams 16 in pairs.
F) to sling time ring beam 12, weld with the pad on minor arc ellbeam 16 according to secondary ring beam 12; Sling time Curved beam 17, one end port of secondary Curved beam 17 is welded to the pad on time ring beam 12, other end port is welded to the pad on basic ring beam 13, is installed by all secondary Curved beams 17 seriatim.
G) lift horizontal ring beam 14, weld successively with the pad on minor arc ellbeam 16 and secondary Curved beam 17 according to horizontal ring beam 14.
H) repeat step g), all install from bottom to top to all horizontal ring beam between basic ring beam 13 and secondary ring beam 12.
I) support member 70, central post 60 and instrument bridge 30 is unloaded.First descending jack 72, apical ring beam 11 is made just to have departed from ring beam bracket 73, within the observation phase, dome structure changing value does not exceed design load, then continue descending jack 72, apical ring beam 11 is made to depart from ring beam bracket 73, within the observation phase, dome structure changing value does not exceed design load, then can unload support member 70, then central post 60 is removed, last removal tool bridge 30.
From description above with put into practice, by the construction using instrument bridge and intermediolateral column and support member to carry out apical ring beam, braced structures is simple, installation accuracy is high, full hall scaffold technique can be replaced, save and set up and remove the duration and expense that full hall scaffold takies, thus save engineering time and construction cost; And instrument bridge is that two steel trusss are assembled, and installation can remove recycling; Central post is standard section of tower crane, need not make in addition, all recyclable recycling.Adopt tower crane as the vertical fortune instrument of lifting, large-scale crane can be replaced, save construction cost.In addition, the construction method of steel structure dome of the present invention, is also applicable to dismounting and the transformation of old dome structure, and the construction of super highrise building top moulding.
The construction method of steel structure dome of the present invention is described in an illustrative manner above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that for said method, various improvement and combination can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (5)
1. a construction method for steel structure dome, comprising:
A) make steel beam column, on described steel beam column, mark pad according to design in advance;
B) many parallel slideways are set, slide onto the center superposition of this instrument bridge center and apical ring beam, fixing described instrument bridge by assembled for instrument bridge to described slideway;
C) install above the structure completed in advance and flexibly connect, basic ring beam is divided into the segment of some segment base plinth ring beams, and flexibly connect top described in the segment of this basic ring beam being lifted into hanging unit and carry out Combination Welding, each segment is spliced into basic ring beam;
D) central post is fixed to above described instrument bridge, on this central post top, support member is installed, this support member comprises operating platform, several jack and ring beam bracket, described jack is fixed between described operating platform and described ring beam bracket, described ring beam bracket is welded on the top of described jack, and described operating platform and described ring beam bracket are fixed with bolts;
E) described apical ring beam is winched to above described ring beam bracket, locate and fix on described apical ring beam to described ring beam bracket; To sling relative two the minor arc ellbeams in position, the two ends of described minor arc ellbeam are welded to the pad on described apical ring beam and described basic ring beam, in pairs described minor arc ellbeam are installed;
F) to sling time ring beam, this ring beam is welded to the pad on described minor arc ellbeam; To sling time Curved beam, the two ends of this Curved beam are welded to the pad on described ring beam and described basic ring beam, seriatim described Curved beam are installed;
G) to sling horizontal ring beam, this horizontal ring beam is welded to the pad on described minor arc ellbeam and described Curved beam;
H) step g is repeated), install from bottom to top to the horizontal ring beam between described basic ring beam and described ring beam;
I) support member, central post and instrument bridge is unloaded.
2. the construction method of steel structure dome as claimed in claim 1, wherein, described instrument bridge comprises two parallel steel trusss, by Bolted angle connection between described steel truss.
3. the construction method of steel structure dome as claimed in claim 1, wherein, described in flexibly connect as neoprene bearing.
4. the construction method of steel structure dome as claimed in claim 1, wherein, described hanging unit is tower crane.
5. the construction method of steel structure dome as claimed in claim 1, wherein, described central post is that some joint standard section of tower cranes connect and form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210591750.1A CN103061506B (en) | 2012-12-28 | 2012-12-28 | Construction method of steel structure dome |
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| CN201210591750.1A CN103061506B (en) | 2012-12-28 | 2012-12-28 | Construction method of steel structure dome |
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| CN103061506A CN103061506A (en) | 2013-04-24 |
| CN103061506B true CN103061506B (en) | 2015-02-18 |
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| CN105350698A (en) * | 2015-10-10 | 2016-02-24 | 中国十九冶集团有限公司南京分公司 | Large-span dome installation construction method |
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| CN110258803A (en) * | 2019-06-21 | 2019-09-20 | 南通大学 | A kind of dome steel structure construction method of installation based on BIM technology |
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| CN111335649B (en) * | 2020-03-31 | 2022-06-24 | 五冶集团上海有限公司 | Hoisting method of building dome structure |
| CN111877773A (en) * | 2020-08-19 | 2020-11-03 | 中冶建工集团重庆钢结构有限公司 | Installation method of large-span annular pressure ring single-layer grid steel roof |
| CN113622524B (en) * | 2021-08-17 | 2022-11-25 | 山东华亿钢机股份有限公司 | Large-span arc-shaped steel structure without support in middle and construction method |
| CN113585761B (en) * | 2021-09-09 | 2022-11-25 | 中建八局南方建设有限公司 | Construction platform structure of ultrahigh dome structure and construction method thereof |
| CN114704016B (en) * | 2022-03-09 | 2024-05-10 | 中建八局新型建造工程有限公司 | Construction method of large-inclination-angle inclined roof profiled steel sheet with dome structure |
| CN115405084A (en) * | 2022-09-05 | 2022-11-29 | 广东省工业设备安装有限公司 | Dome construction platform and dome construction method |
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