CN103061506A - Construction method of steel structure dome - Google Patents

Construction method of steel structure dome Download PDF

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Publication number
CN103061506A
CN103061506A CN2012105917501A CN201210591750A CN103061506A CN 103061506 A CN103061506 A CN 103061506A CN 2012105917501 A CN2012105917501 A CN 2012105917501A CN 201210591750 A CN201210591750 A CN 201210591750A CN 103061506 A CN103061506 A CN 103061506A
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CN
China
Prior art keywords
ring
steel
dome
pad
minor arc
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CN2012105917501A
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Chinese (zh)
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CN103061506B (en
Inventor
吴俊卿
谭福生
孙红星
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中国华冶科工集团有限公司
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Publication of CN103061506A publication Critical patent/CN103061506A/en
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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

A kind of job practices of steel work dome

Technical field

The present invention relates to building field, specifically, relate to a kind of job practices of steel work dome.

Background technology

Dome type structure refers to the hemisphere space or the area that dangle usually be structured in the top of building such as public place and large stadium.The steel work dome refers to that all radial girders of dome and hoop beam form by steel-pipe welding.Steel structure member have from heavy and light, quick for installation, anti-seismic performance good, the advantage such as low in the pollution of the environment, the steel work dome has the advantages such as the inner space is large, strength and stability good, modern design is attractive in appearance, therefore, the extremely architect's favor of steel work dome.Fig. 1 shows the top view of an example of steel work dome, as shown in Figure 1, dome type structure is made of steel member 10, and it comprises apical ring beam 11, inferior 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 beam and ring beams consist of by steel pipe, are welded to connect between each crossover node.

In the work progress of existing steel work dome, adopt full hall scaffold technique, the temporary structure frame of namely setting up in the internal wholesale of steel work dome.Fig. 2 shows full hall scaffold front schematic view in the prior art.As shown in Figure 2, full hall scaffold generally includes horizon bar 110, vertical rod 120, fastener 130, the 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, put the bar 150 of sweeping the floor; B) establish vertical rod 120, vertical rod 120 and the bar 150 of sweeping the floor are adopted fastener 130 fastenings; C) the little cross bar 150 of sweeping the floor is installed, little cross bar 150 and vertical rod 120 or the bar 140 of sweeping the floor are adopted fastener 130 fastenings; D) horizon bar 110 is installed, fastener 130 fastenings are adopted in horizon bar 110 and vertical rod 120; E) repeating step c) and step d), install to all horizon bars 110; F) bridging 160 is installed.Highly different according to arranging of full hall scaffold, to horizon bar 110, vertical rod 120, the structure of bar 150 of sweeping the floor requires also different, to the vertical rod step pitch, and the vertical rod advance, the vertical rod transfer, horizontal bearing diagonal, the requirement of the parameters such as bridging setting position and angle also is not quite similar.In addition, scaffold set up with demolishing process in, usually adopt the assembling of large-scale crane or transmit each member.

The shortcoming of this method is, adopts large-scale crane assembling and full hall scaffold, on the one hand, set up and need a large amount of manpower and construction period when removing full hall scaffold, and the high-altitude sets up scaffold and has potential safety hazard, and support caves in and can cause security incident; On the other hand, adopt large-scale crane during transmission member, crane cost has increased construction cost.

Summary of the invention

The present invention makes in order to address the above problem.Specifically, the object of the invention is to, a kind of job practices of steel work dome is provided, so that in the construction of steel work dome, can not use full hall scaffold, saved and set up and removed the used manpower of scaffold and construction period, and can not adopt large-scale crane, save construction cost.

To achieve these goals, the invention provides a kind of job practices of steel work dome, the method comprises: a) make the steel member, mark pad according in advance design at described steel member; B) many parallel slideways are set, with the assembly unit of instrument bridge to described slideway and slide onto the center superposition of this instrument bridge center and apical ring beam, fixing described instrument bridge; C) above the structure of finishing in advance, install and flexibly connect, basic ring beam is divided into some sections, and be lifted into the described top that flexibly connects with the section part that the hanging unit should the basis ring beam and carry out Combination Welding; D) central post is fixed to described instrument bridge top, on this central post top support member is installed, this support member comprises operating platform, several jack and ring beam carriage, and described jack is fixed between described operating platform and the described ring beam carriage; E) described apical ring beam is winched to described ring beam carriage top, location and fixing described apical ring beam; Two the relative minor arc ellbeams of position of slinging are welded to respectively pad on described apical ring beam and the described basic ring beam with the two ends of described minor arc ellbeam, by over the ground described minor arc ellbeam being installed; F) sling time ring beam is welded to pad on the described minor arc ellbeam with this time ring beam; Sling time Curved beam is welded to respectively pad on described ring beam and the described basic ring beam with the two ends of this time Curved beam, seriatim described Curved beam is installed; G) the horizontal ring beam of slinging is welded to pad on described minor arc ellbeam and described the Curved beam with this horizontal ring beam; H) repeating step g), install from bottom to top to the horizontal ring beam between described basic ring beam and described the ring beam; I) unloading support member, central post and instrument bridge.

Preferably, described instrument bridge comprises two parallel steel trusss, is connected by angle steel between the described steel truss.

Preferably, described flexibly connecting is neoprene bearing.

Preferably, described hanging unit is tower crane.

In addition, preferably, described central post is that some joint standard section of tower cranes join and form.

From top description and the practice as can be known, carry out the construction of apical ring beam by tool using bridge and intermediolateral column and support member, braced structures is simple, installation accuracy is high, can replace full hall scaffold technique, saved and set up and removed duration and the expense that full hall scaffold takies, thereby saved engineering time and construction cost; And the instrument bridge is two steel truss assembly units, and installation can be removed 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, can replace large-scale crane, save construction cost.In addition, the job practices of steel work dome of the present invention also is applicable to dismounting and the transformation of old dome structure, and the construction of super highrise building top moulding.

Description of drawings

Fig. 1 shows the top view of an example of steel work dome;

Fig. 2 shows full hall scaffold front schematic view in the 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 an example of support member; And

Fig. 5 shows the schematic diagram of support member of the present invention.

The specific embodiment

The embodiment of the job practices of steel member dome of the present invention is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, in situation without departing from the spirit and scope of the present invention, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection domain of restriction claim.In addition, in this manual, identical Reference numeral represents same or analogous part.

The job practices of steel member dome of the present invention comprises the steps:

A) make steel member 10, this steel member 10 comprises apical ring beam 11, inferior ring beam 12, basic ring beam 13, many horizontal ring beams 14,15, many minor arc ellbeams 16 and many Curved beams 17.Mark welding node between each steel member 10 at steel member 10, mark and the pad of all minor arc ellbeams 16 with time Curved beam 17 at basic ring beam 13, mark pad with all minor arc ellbeams 16 at apical ring beam 11, mark and the pad of all minor arc ellbeams 16 and time Curved beam 17 at inferior ring beam 12, mark pad with all minor arc ellbeams 16 and inferior Curved beam 17 at many horizontal ring beams 14,15.As shown in Figure 1.

B) many parallel dragging tracks 21,22 are set, with 30 assembly units of instrument bridge to this dragging track 21,22, drag simultaneously the two ends of this instrument bridge 30, with instrument bridge 30 21,22 center P2 slippages to the steel work dome from initial position P1 along dragging track, 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 by angle steel 33 between the steel truss 31,32.As shown in Figure 3.

C) installation flexibly connects 40 above the structure of finishing in advance, is used for the weight of supporting steel member 10, and good elasticity is provided, to adapt to the shear strain of steel member 10; Preferably, flexibly connect 40 and adopt neoprene bearing.Basic ring beam 13 is divided into the section part of some segment base plinth ring beams 13, adopts hanging unit 50 that the section part of basic ring beam 13 is lifted into and flexibly connect 40 tops, each section part is spliced into basic ring beam 13, will be fixed welding after the docking of adjacent segment part interface; Preferably, described hanging unit 50 is tower crane.

D) as shown in Figure 4, central post 60 bottoms are fixed on the crossbeam of instrument bridge 30, the top of this central post 60 is fixed to ground with four cable wind ropes 61 that distribute with the five equilibrium direction; Support member 70 is installed on top at central post 60, this support member 70 is used for support top ring beam 11, support member 70 comprises operating platform 71, the center of apical ring beam 11 is projected on this operating platform 71, four jack 72 are installed on this operating platform 71, ring beam carriage 73 is welded to jack 72 tops.Preferably, central post 60 forms for some joint standard section of tower cranes join, and does not need other making, and is recycling after removing.

Fig. 5 shows support member schematic diagram of the present invention, as shown in Figure 5, four jack 72 with four five equilibrium directions between operating platform 71 and ring beam carriage 73, because of unbalance stress slippage occurs or topple for fear of ring beam carriage 73, operating platform 71 is connected 74 with ring beam carriage 73 bolts, when jack 72 stressed lifting, bolt connects 74 can make the ring beam carriage 73 can trim locations.

E) with hanging unit 50 apical ring beam 11 is winched on the ring beam carriage 73, according to the center of Design Orientation apical ring beam 11 in advance, apical ring beam 11 is fixed on the ring beam carriage 73, two the minor arc ellbeams 16 of slinging, article two, the installation site of minor arc ellbeam 16 is relative, one end port of minor arc ellbeam 16 is welded to pad on the apical ring beam 11, and other end port is welded to the pad on the basic ring beam 13, by over the ground all minor arc ellbeams 16 being installed.

F) sling time ring beam 12 welds according to inferior ring beam 12 and pad on the minor arc ellbeam 16; Sling time Curved beam 17 is welded to pad on time ring beam 12 with an end port of inferior Curved beam 17, and other end port is welded to the pad on the basic ring beam 13, seriatim all inferior Curved beams 17 is installed.

G) the horizontal ring beam 14 of lifting welds successively according to the pad on horizontal ring beam 14 and minor arc ellbeam 16 and the inferior Curved beam 17.

H) repeating step g), extremely all the horizontal ring beams between basic ring beam 13 and the inferior ring beam 12 all install from bottom to top.

I) unloading support member 70, central post 60 and instrument bridge 30.Elder generation's descending jack 72, so that apical ring beam 11 has just broken away from ring beam carriage 73, within the observation phase, the dome structure changing value does not exceed design load, then continues descending jack 72, so that apical ring beam 11 breaks away from ring beam carriage 73, within the observation phase, the dome structure changing value does not exceed design load, then can unload support member 70, then remove central post 60, last removal tool bridge 30.

From top description and the practice as can be known, carry out the construction of apical ring beam by tool using bridge and intermediolateral column and support member, braced structures is simple, installation accuracy is high, can replace full hall scaffold technique, saved and set up and removed duration and the expense that full hall scaffold takies, thereby saved engineering time and construction cost; And the instrument bridge is two steel truss assembly units, and installation can be removed 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, can replace large-scale crane, save construction cost.In addition, the job practices of steel work dome of the present invention also is applicable to dismounting and the transformation of old dome structure, and the construction of super highrise building top moulding.

The job practices of steel work dome of the present invention has as above been described in the mode of example with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that for said method, can also make various improvement and combination on the basis that does not break away 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. the job practices of a steel work dome comprises:
A) make the steel member, mark pad according in advance design at described steel member;
B) many parallel slideways are set, with the assembly unit of instrument bridge to described slideway and slide onto the center superposition of this instrument bridge center and apical ring beam, fixing described instrument bridge;
C) above the structure of finishing in advance, install and flexibly connect, basic ring beam is divided into some sections, and be lifted into the described top that flexibly connects with the section part that the hanging unit should the basis ring beam and carry out Combination Welding;
D) central post is fixed to described instrument bridge top, on this central post top support member is installed, this support member comprises operating platform, several jack and ring beam carriage, and described jack is fixed between described operating platform and the described ring beam carriage;
E) described apical ring beam is winched to described ring beam carriage top, location and fixing described apical ring beam; Two the relative minor arc ellbeams of position of slinging are welded to respectively pad on described apical ring beam and the described basic ring beam with the two ends of described minor arc ellbeam, by over the ground described minor arc ellbeam being installed;
F) sling time ring beam is welded to pad on the described minor arc ellbeam with this time ring beam; Sling time Curved beam is welded to respectively pad on described ring beam and the described basic ring beam with the two ends of this time Curved beam, seriatim described Curved beam is installed;
G) the horizontal ring beam of slinging is welded to pad on described minor arc ellbeam and described the Curved beam with this horizontal ring beam;
H) repeating step g), install from bottom to top to the horizontal ring beam between described basic ring beam and described the ring beam;
I) unloading support member, central post and instrument bridge.
2. the job practices of steel work dome as claimed in claim 1, wherein, described instrument bridge comprises two parallel steel trusss, is connected by angle steel between the described steel truss.
3. the job practices of steel work dome as claimed in claim 1, wherein, described flexibly connecting is neoprene bearing.
4. the job practices of steel work dome as claimed in claim 1, wherein, described hanging unit is tower crane.
5. the job practices of steel work dome as claimed in claim 1, wherein, described central post is that some joint standard section of tower cranes join and form.
CN201210591750.1A 2012-12-28 2012-12-28 Construction method of steel structure dome CN103061506B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088470A (en) * 2014-07-01 2014-10-08 中国三冶集团有限公司 Replacing construction method for vertical steel storage tank round dome
CN104141390A (en) * 2013-05-07 2014-11-12 中国核工业二四建设有限公司 AP1000 nuclear power dome assembling jig frame
CN104265001A (en) * 2014-09-15 2015-01-07 浙江精工钢结构集团有限公司 Steel structure construction method without jig frame adaption
CN104442150A (en) * 2014-10-24 2015-03-25 上海通用金属结构工程有限公司 Installation method for stainless-steel landscape sculpture
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
CN105804401A (en) * 2016-05-16 2016-07-27 中国建筑第二工程局有限公司 Construction steel jig frame and method for constructing daylighting roof steel structure by utilizing the same
CN109098336A (en) * 2018-08-27 2018-12-28 苏州园林发展股份有限公司 A kind of construction method of dome device
CN109695317A (en) * 2018-12-29 2019-04-30 中建一局集团第一建筑有限公司 A kind of lighting roof Steel Structure Installation method
CN110306670A (en) * 2018-05-29 2019-10-08 中国建筑第二工程局有限公司 A kind of construction method of overlength primary and secondary truss and annulus truss dome steel structure

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104141390A (en) * 2013-05-07 2014-11-12 中国核工业二四建设有限公司 AP1000 nuclear power dome assembling jig frame
CN104088470A (en) * 2014-07-01 2014-10-08 中国三冶集团有限公司 Replacing construction method for vertical steel storage tank round dome
CN104088470B (en) * 2014-07-01 2016-01-06 中国三冶集团有限公司 A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault
CN104265001A (en) * 2014-09-15 2015-01-07 浙江精工钢结构集团有限公司 Steel structure construction method without jig frame adaption
CN104442150A (en) * 2014-10-24 2015-03-25 上海通用金属结构工程有限公司 Installation method for stainless-steel landscape sculpture
CN104442150B (en) * 2014-10-24 2017-11-24 上海通用金属结构工程有限公司 A kind of stainless steel landscape sculpture installation method
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
CN105804401A (en) * 2016-05-16 2016-07-27 中国建筑第二工程局有限公司 Construction steel jig frame and method for constructing daylighting roof steel structure by utilizing the same
CN110306670A (en) * 2018-05-29 2019-10-08 中国建筑第二工程局有限公司 A kind of construction method of overlength primary and secondary truss and annulus truss dome steel structure
CN109098336A (en) * 2018-08-27 2018-12-28 苏州园林发展股份有限公司 A kind of construction method of dome device
CN109695317A (en) * 2018-12-29 2019-04-30 中建一局集团第一建筑有限公司 A kind of lighting roof Steel Structure Installation method

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