CN102912989B - Installation method for steel reticulated shell and cable dome combined structure - Google Patents
Installation method for steel reticulated shell and cable dome combined structure Download PDFInfo
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- CN102912989B CN102912989B CN201210456233.3A CN201210456233A CN102912989B CN 102912989 B CN102912989 B CN 102912989B CN 201210456233 A CN201210456233 A CN 201210456233A CN 102912989 B CN102912989 B CN 102912989B
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Abstract
Disclosed is an installation method for a steel reticulated shell and cable dome combined structure. Hinged supports capable of rotating unidirectionally are arranged on outer ring beams, an installation support is arranged in the middle of a site, and part of rods of a steel reticulated shell are installed; a multipoint synchronous lifting device is arranged on the upper portion of the steel reticulated shell; an inner ring cable system of a dorsal cable net is connected with supporting rods, and an outer ring cable system is connected with the supports on the outer ring beams through auxiliary pulling cables; the lifting device on the upper portion of the steel reticulated shell lifts the supporting rods evenly, outer ring dorsal cables are pulled in the lifting process, the whole dorsal cable net keeping a loose state is lifted synchronously, ring cables and inclined cables at different installation heights are installed during the lifting, and after all inhaul cables are installed, the inclined cables of the outer rings can be pulled to be shaped; and remaining rods of the steel reticulated shell are mounted, and the reticulated shell is connected with a cable dome into a whole. According to the installation method for the steel reticulated shell and cable dome combined structure, difficulties of cable dome structure installation can be reduced effectively, and simultaneously, cross operation of steel reticulated shell and cable dome installation can be achieved, the construction period is reduced, and the cost is saved.
Description
Technical field
The present invention relates to a kind of method of for Construction of Civil Engineering, the construction of novel steel screen and rope dome interblock space structure being carried out rod member installation and prestressed stretch-draw shaping, belong to the technical field of space prestressed steel structure construction and installation, particularly the mounting method of a kind of steel screen and rope dome combining structure.
Background technology
Traditional cable dome structure using film as roofing paver exist membrane material price, fireproof performance poor, be difficult to eliminate the problems such as rain noise, thermal and insulating performance are poor, cutting laying process relative complex.For addressing these problems, domestic scholars has proposed a kind of new composite structure form being combined by steel screen and rope dome, that this combining structure both can make full use of was light-duty, efficient, by the cable dome structure characteristic of prestressing force moulding, the advantage that can bring into play steel screen again and be convenient to lay rigid roofing plate.The mounting method of domestic and international known steel screen and rope dome combining structure, its key step: the installation that (1) first carries out bottom cable dome structure is shaped, (2) then set up full hall mounting bracket on ground, and (3) finally carry out the installation of top steel screen.The mounting method of known steel screen and rope dome combining structure, the installation of cable dome structure and prestressed stretch-draw forming construction difficulty are larger, part drag-line may need to exceed the external force that designs Suo Li and force in place in installation process, this is stressed all unfavorable to drag-line, strut and node, the safety deficiency of installation operation.Meanwhile, because cable dome structure is wanted first installation, the setting up and the installation of top steel screen of just can the property entered full hall mounting bracket, construction operation can not intersect, and the construction period is longer, and installation cost is higher.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, has proposed a kind of difficulty, saving duration, the saving steel screen of construction cost and mounting method of rope dome combining structure that can effectively reduce cable dome structure construction and installation.
The technical problem to be solved in the present invention is achieved through the following technical solutions, and the mounting method of a kind of steel screen and rope dome combining structure is characterized in that this mounting method is divided into the following step:
The first step: according to design elevation and the structural arrangement form of steel screen and rope dome combining structure, set up mounting bracket in the precalculated position of ground and grandstand, and at the top of outer-ring beam erection support;
Second step: the rod member that the radial component of steel screen is first installed taking mounting bracket as platform, composition stable structure skeleton, some lifting means and lift cable are installed on structural skeleton again, lifting means is corresponding one by one with the installation site of center strut, middle central shoring bar, outer shroud strut, and lifting means joins by lift cable and center strut, middle central shoring bar and outer shroud strut;
The 3rd step: the connection of notochord rope net, ansa rope in installing between the top of center strut and the top of middle central shoring bar, ansa rope in installing between the top of middle central shoring bar and the top of outer shroud strut, the top of outer shroud strut is connected with outer shroud notochord, and outer shroud notochord is connected with the bearing on outer-ring beam through notochord drag cable;
The 4th step: lifting means drives lift cable to promote center strut, middle central shoring bar and outer shroud strut, simultaneously through notochord drag cable traction outer shroud notochord;
The 5th step: follow hoisting depth, encircle oblique cord in installing between ring oblique cord, outside central shoring bar and middle central shoring bar in installing respectively between the strut of middle central shoring Gan Yu center, encircle strop in installation between central shoring bar in two;
The 6th step: outer shroud notochord is anchored on the bearing of outer-ring beam;
The 7th step: between two outer shroud struts, outer shroud strop is installed, and by oblique cord drag cable, outer shroud oblique cord is connected with the bearing on outer-ring beam;
The 8th step: outer shroud oblique cord is anchored on the bearing of outer-ring beam;
The 9th step: promote center strut, middle central shoring bar and outer shroud strut to rope dome position, single tension outer shroud oblique cord to rope dome is finally shaped;
The tenth step: center strut, middle central shoring bar and outer shroud strut are connected with structural skeleton, remove lifting means and lift cable, the rod member of steel screen remainder is installed, finally remove mounting bracket.
The technical problem to be solved in the present invention can also be come further to realize by the following technical programs, the concrete operation method of the 4th step is: in lifting process, hoisting depth and speed by lifting means to strut are controlled, and ensure that whole notochord rope net is in relaxed state.
The technical problem to be solved in the present invention can also be come further to realize by the following technical programs, the concrete operation method of the 5th step is: according to the hoisting depth of strut, notochord rope net is kept under the prerequisite of relaxed state, in distance between the node of notochord rope net and grandstand or ground meets when ring oblique cord, middle ring oblique cord installing space demand, to each Suo Jinhang installation.
The technical problem to be solved in the present invention can also be come further to realize by the following technical programs, the concrete operation method of the 9th step is: unload lift rope before the stretch-draw of outer shroud oblique cord, under the condition not being connected with any supporting member, the outer shroud oblique cord of rope dome is carried out to single tension to design internal force.
The present invention compared with prior art, utilize mounting bracket that the rod member of the radial component of steel screen is first installed, to form interim rock-steady structure skeleton system, the platform of installing as lifting means, by the castering action of lifting means, can effectively reduce the difficulty that cable dome structure is installed, can realize again the cross-operation of steel screen installation and rope dome installation simultaneously, save the duration, cost-saving.Overcome the cable dome structure construction and installation difficulty that the mounting method of existing steel screen and rope dome combining structure exists large, construction operation can not intersect and causes the duration longer, construction and installation high in cost of production technical problem.
Brief description of the drawings
Fig. 1 is the schematic diagram that lifting means is installed on structural skeleton.
Fig. 2 is the lifting of notochord rope net and the schematic diagram of connection.
Fig. 3 is the schematic diagram of lifting and the connection of strop.
Fig. 4 promotes the schematic diagram putting in place.
Fig. 5 is the schematic diagram after installing.
Detailed description of the invention
As shown in the figure, in figure: interior ansa rope 1, middle ansa rope 2, outer shroud notochord 3, interior ring oblique cord 4, middle ring oblique cord 5, outer shroud oblique cord 6, center strut 7, middle central shoring bar 8, outer shroud strut 9, middle ring strop 10, outer shroud strop 11, notochord drag cable 31, oblique cord drag cable 61, outer-ring beam 101, bearing 201, structural skeleton 301, lifting means 401, mounting bracket 501, lift cable 601, grandstand 701, ground 801.
The mounting method of a kind of steel screen and rope dome combining structure, first mounting bracket is set in the middle of place according to the arrangement form of structure, carry out the installation of the part rod member of steel screen, to form interim rock-steady structure system, then on steel screen top, Multipoint synchronous lifting means is set, strop system in notochord net is connected with strut, outer strop is to use auxiliary traction rope to be connected with outer-ring beam upper bracket, the lifting means on steel screen top evenly promotes strut, in lifting process, be accompanied by the traction of outer shroud notochord, whole notochord net keeps relaxed state Synchronous lifting thereupon, lifting limit, limit is positioned at each ring strop of different setting height(from bottom)s and the installation of oblique cord, after all drag-lines install, outer shroud oblique cord is carried out to single tension shaping, steel screen residue rod member is then installed, last and rope dome is connected to become entirety.The concrete the following step that is divided into:
The first step: according to design elevation and the structural arrangement form of steel screen and rope dome combining structure, set up mounting bracket 501 in the precalculated position of ground 801 and grandstand 701, and at the top of outer-ring beam 101 erection support 201;
Second step: the rod member that the radial component of steel screen is first installed taking mounting bracket 501 as platform, composition stable structure skeleton 301, some lifting means 401 and lift cable 601 are installed on structural skeleton 301 again, the installation site of lifting means 401Yu center strut 7, middle central shoring bar 8, outer shroud strut 9 is corresponding one by one, and lifting means joins by lift cable and center strut 7, middle central shoring bar 8 and outer shroud strut 9;
The 3rd step: the connection of notochord rope net, ansa rope 1 in installing between the top of center strut 7 and the top of middle central shoring bar 8, ansa rope 2 in installing between the top of middle central shoring bar 8 and the top of outer shroud strut 9, the top of outer shroud strut 9 is connected with outer shroud notochord 3, and outer shroud notochord 3 is connected with the bearing 201 on outer-ring beam through notochord drag cable 31;
The 4th step: lifting means 401 drives lift cable 601Dui center strut 7, middle central shoring bar 8 and outer shroud strut 9 to promote, draws outer shroud notochord 3 through notochord drag cable 31 simultaneously;
The 5th step: follow hoisting depth, encircle oblique cord 5 in installing between ring oblique cord 4, outside central shoring bar and middle central shoring bar in installing respectively between middle central shoring bar 8 and center strut 7, encircle strop 10 in installation between central shoring bar in two;
The 6th step: outer shroud notochord 3 is anchored on the bearing 201 of outer-ring beam;
The 7th step: between two outer shroud struts 9, outer shroud strop 11 is installed, and by oblique cord drag cable 61, outer shroud oblique cord 6 is connected with the bearing 201 on outer-ring beam;
The 8th step: outer shroud oblique cord 6 is anchored on the bearing 201 of outer-ring beam;
The 9th step: promote center strut 7, middle central shoring bar 8 and outer shroud strut 9 to rope dome position, single tension outer shroud oblique cord 6 to rope dome is finally shaped;
The tenth step: center strut 7, middle central shoring bar 8 and outer shroud strut 9 are connected with structural skeleton 301, remove lifting means 401 and lift cable 601, the rod member of steel screen remainder is installed, finally remove mounting bracket 501.
The concrete operation method of the 4th step is: in lifting process, hoisting depth and speed by lifting means to strut are controlled, and ensures that whole notochord rope net is in relaxed state.
The concrete operation method of the 5th step is: according to the hoisting depth of strut, notochord rope net is kept under the prerequisite of relaxed state, in distance between the node of notochord rope net and grandstand or ground meets when ring oblique cord, middle ring oblique cord installing space demand, to each Suo Jinhang installation.
The concrete operation method of the 9th step is: unload lift rope before the stretch-draw of outer shroud oblique cord, under the condition not being connected with any supporting member, carries out single tension to design internal force to the outer shroud oblique cord of rope dome.
Claims (1)
1. a mounting method for steel screen and rope dome combining structure, is characterized in that this mounting method is divided into the following step:
The first step: according to design elevation and the structural arrangement form of steel screen and rope dome combining structure, set up mounting bracket in the precalculated position of ground and grandstand, and at the top of outer-ring beam erection support;
Second step: the rod member that the radial component of steel screen is first installed taking mounting bracket as platform, composition stable structure skeleton, some lifting means and lift cable are installed on structural skeleton again, lifting means is corresponding one by one with the installation site of center strut, middle central shoring bar, outer shroud strut, and lifting means joins by lift cable and center strut, middle central shoring bar and outer shroud strut;
The 3rd step: the connection of notochord rope net, ansa rope in installing between the top of center strut and the top of middle central shoring bar, ansa rope in installing between the top of middle central shoring bar and the top of outer shroud strut, the top of outer shroud strut is connected with outer shroud notochord, and outer shroud notochord is connected with the bearing on outer-ring beam through notochord drag cable;
The 4th step: lifting means drives lift cable to promote center strut, middle central shoring bar and outer shroud strut, simultaneously through notochord drag cable traction outer shroud notochord; Concrete operation method is: in lifting process, hoisting depth and speed by lifting means to strut are controlled, and ensures that whole notochord rope net is in relaxed state;
The 5th step: follow hoisting depth, encircle oblique cord in installing between ring oblique cord, outside central shoring bar and middle central shoring bar in installing respectively between the strut of middle central shoring Gan Yu center, encircle strop in installation between central shoring bar in two; Concrete operation method is: according to the hoisting depth of strut, notochord rope net is kept under the prerequisite of relaxed state, in distance between the node of notochord rope net and grandstand or ground meets when ring oblique cord, middle ring oblique cord installing space demand, to each Suo Jinhang installation;
The 6th step: outer shroud notochord is anchored on the bearing of outer-ring beam;
The 7th step: between two outer shroud struts, outer shroud strop is installed, and by oblique cord drag cable, outer shroud oblique cord is connected with the bearing on outer-ring beam;
The 8th step: outer shroud oblique cord is anchored on the bearing of outer-ring beam;
The 9th step: promote center strut, middle central shoring bar and outer shroud strut to rope dome position, single tension outer shroud oblique cord to rope dome is finally shaped; Concrete operation method is: unload lift rope before the stretch-draw of outer shroud oblique cord, under the condition not being connected with any supporting member, carries out single tension to design internal force to the outer shroud oblique cord of rope dome;
The tenth step: center strut, middle central shoring bar and outer shroud strut are connected with structural skeleton, remove lifting means and lift cable, the rod member of steel screen remainder is installed, finally remove mounting bracket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210456233.3A CN102912989B (en) | 2012-11-14 | 2012-11-14 | Installation method for steel reticulated shell and cable dome combined structure |
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| CN201210456233.3A CN102912989B (en) | 2012-11-14 | 2012-11-14 | Installation method for steel reticulated shell and cable dome combined structure |
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| CN102912989B true CN102912989B (en) | 2014-08-20 |
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| CN103821376B (en) * | 2014-02-28 | 2016-04-20 | 中天建设集团有限公司 | Single-layer latticed shell high-altitude oblique rail accumulation slippage construction |
| CN104018680B (en) * | 2014-06-17 | 2015-12-09 | 中国建筑第二工程局有限公司 | Lifting method of large-span solid-web type arc beam |
| 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 |
| CN106013812B (en) * | 2016-05-18 | 2017-12-19 | 东南大学 | A kind of two-way monolayer cable net structure without support high-altitude overhead cable construction method |
| CN109811889B (en) * | 2019-01-23 | 2020-11-03 | 中国五冶集团有限公司 | Saddle-shaped cable net cable spreading installation method under space limited condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5355641A (en) * | 1990-11-02 | 1994-10-18 | Weidlinger Associates, Inc. | Triangulated cable dome with retractable roof |
| JP2981061B2 (en) * | 1992-09-17 | 1999-11-22 | 株式会社熊谷組 | How to build a cable dome roof |
| CN101016755A (en) * | 2006-12-31 | 2007-08-15 | 浙江大学 | Geiger dome system having mitigatory function |
| CN101413291B (en) * | 2008-11-12 | 2010-07-07 | 东南大学 | Accumulation mounting method for cable sky dome tower frame raising cable rod |
| CN201420400Y (en) * | 2009-03-17 | 2010-03-10 | 上海市机械施工有限公司 | Supporting structure of towering reticulated shell structure |
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