CN1195136C - Construction method for large overhead cable-steel structure system - Google Patents
Construction method for large overhead cable-steel structure system Download PDFInfo
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- CN1195136C CN1195136C CNB031184650A CN03118465A CN1195136C CN 1195136 C CN1195136 C CN 1195136C CN B031184650 A CNB031184650 A CN B031184650A CN 03118465 A CN03118465 A CN 03118465A CN 1195136 C CN1195136 C CN 1195136C
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Abstract
The present invention discloses a construction method for a large spacial cable rack steel structure system, which belongs to the technical field of building construction. The method is characterized in that the installation and the construction of a main rigid support adopts an installing method of space stepping and middle interpolation. The method has the following steps: A, a whole project is divided into one to a plurality of stations to be installed simultaneously; B, a first main rigid supporting unit is installed and positioned; C, a third main rigid supporting unit is installed and positioned; D, a second main rigid supporting unit is interpolated and installed between the first and the third main rigid supporting units, and accumulated structural errors of the first and the second main rigid supporting units are eliminated; E, the operations of the C and the D are repeated until the installation is completed to form a main rigid supporting framework system; F, an overhanging girder and auxiliary assemblies are installed. The method has the advantages of ordered construction and safe construction. Besides, the structural errors in the construction are eliminated in time, the installation precision of the structure is ensured, and the safety guard coefficient of the whole project is improved. The method of the present invention is suitable for the construction similar cable rack steel structures of large places.
Description
Technical field
The invention belongs to technical field of building construction, belong to the Spatial Cable frame steel structure system technical field of construction of large stadium specifically.
Background technology
Building is an industry that development is very fast, the development of Building technology is maked rapid progress, the increasing large stadium particularly design of stadiums has adopted up-to-date theory and up-to-date material, wherein the overcanopy shape stadium of rope film stretching-drawing structure is rich in the new breath of 21st century, and it is attractive in appearance that it makes stadiums get a bird's eye view modern design.But this overcanopy structure needs a large-scale rope frame steel work to support it, this rope frame steel work generally all must be located on the large-scale overhanging type reinforced concrete beam column, and stadiums generally all are to adopt ellipsoidal structure, this just brings a following difficult problem: this stadiums of the first all are to be supported by large-scale overhanging type beam column, be located in large-scale rope frame steel structural overhead operating rate on the large-scale beam column of encorbelmenting up to more than 95%, and one of the parts of rope frame steel work are exactly three, 40 tons of weights, the size overlength super large of parts, a cantilever frame is exactly more than 50 meters, it is very big that this has been doomed its difficulty of construction, and the safety of structure and the safety of operation all are the big problems that can not be ignored.They are two years old, the formed lower ring of going up of rope frame steel work rigid support parts all changes along with the change of stadium ellipsoidal structure, their formed space hyperbola moulding, all structure members are all changed with this variation, the size of support component and size all exist diversity and complexity, the structural failure of each unit is accumulated and will be made the total loss of stability, causes potential hidden danger greatly.Therefore, for guaranteeing stability of structure and safety, just must guarantee the installation accuracy of structure.This just requires can not continue to use traditional method of installing one by one to the installation of this class formation.
Summary of the invention
At the proposition of the deficiencies in the prior art and new technical problem, the purpose of this invention is to provide a kind of method that is applicable to the Spatial Cable frame steel structure system construction of large stadium.It can guarantee the safety of constructing, and the construction error of structure progressively can be eliminated in work progress, does not cause accumulated error, guarantee between the structure in conjunction with precision, thereby the safety that has improved the monolithic architecture thing.
The object of the present invention is achieved like this: the job practices of space large-scale rope frame steel structure system is divided into three phases with whole engineering and carries out successively:
Phase I, whole rigidity master's support units are installed and are combined into large-scale rigidity main supporting structure skeleton with four pit shafts;
Second stage is installed cantilever frame, makes it form permanent the combination with rigidity main supporting structure skeleton;
Phase III, strop and appurtenances are installed, finish whole large-scale rope frame steel structure systems;
Concrete installation steps method is as follows:
A, whole engineering are divided into one or more station, and each station all is docile and obedient hour hands or is counterclockwise installed simultaneously;
B, at each station, with lifting handling machinery with the first rigidity master support unit integral lifting, accurately locate and stand on the accepting on the position of first reinforced concrete beam column, with lower link the first rigidity master support unit and reinforced concrete beam column are linked together, fix the first rigidity master support unit with several interim guy tractive cable tractions and make it be in stable state;
C, with lifting handling machinery with the 3rd rigidity master support unit integral lifting, accurately locate and stand on the accepting on the position of the 3rd reinforced concrete beam column, with lower link the 3rd rigidity master support unit and reinforced concrete beam column are linked together, fix the 3rd rigidity master support unit with several interim guy tractive cable tractions and make it be in stable state;
D, the assembly component that will form the interpolation unit or loose mail lift by crane, locate and be installed in the accepting on the position of second reinforced concrete beam column successively, and with first, the 3 two reinforced concrete beam column on the first and third rigidity master support unit that installed be welded to connect or high-strength bolt is connected; Eliminate the accumulative total rigging error that produces in the installation of first module and Unit the 3rd simultaneously; The second rigidity master support unit with the fixing whole interpolation of several interim guy tractive cable tractions makes it be in stable state;
E, carry out remaining element according to C, D two step repetitive cycling and install, install until rigidity master's support unit of whole space large-scale rope frame steel work; Whole steel work combines as a whole with the pit shaft in four orientation, be supported on all reinforced concrete beam columns, forms a secondary large-scale rigidity main supporting structure skeleton aloft;
F, be welded to connect with the cantilever frame integral lifting and with rigidity master support unit and permanent cable traction is connected;
G, with the assembly unit and be connected it mutually of the diagonal brace between the cantilever frame and appurtenances and completed rigidity main supporting structure skeleton and cantilever frame;
H, interior strop promoted be installed on the main rope folder that is welded in advance on the modified scissors truss; Finish whole large-scale rope frame steel structure systems.
The structure that described rigidity master's support unit is made up of the seamed edge of triangular cone, wherein the seamed edge perpendicular to horizontal plane promptly is alleged column; During with this element integral lifting, should keep column vertical substantially, make bulb correspondence on the column lower node fall to being positioned on the embedded board ball seat on the reinforced concrete beam column, under the monitoring of transit, carry out the adjustment of the lower ring node space position of column verticality and two lower chord lower ends, adjust qualified after, lower link upper end is connected with high-strength bolt with lower ring node in the rigidity master support unit, again the lower end of lower link is connected drawing welding, high-strength bolt with embedded board on the reinforced concrete beam column.
Described interpolation unit is divided into rigidity master support unit the weld assembly of following several assembly or loose mail: A, a root post lower node and a lower edge truss; B, a lower edge component truss; C, a root post are with the two upper connecting rods assembly that the ring beam joint place connects on the column upper end; D, rod assembly; E, loose mail: lower ring, lower link, last ring beam, bearing pin; Assembly and loose mail need guarantee that all the precision of member and related angle, size is not overproof.
The other end of the cable wind rope that is connected with column unit in the installation process is that interconnection is in the reserving hole of the reinforced concrete beam column that closes on, or be connected on other the reinforced concrete structure that closes on, the centre of cable wind rope is provided with length adjuster (being Chain block).
Method proposed by the invention makes to construct and is in the situation of orderly propelling, has guaranteed constructor's safety.The method of the middle interpolation of stepping can be eliminated the structural failure in the construction in time at interval, guarantees the installation accuracy of structure, has also improved the safety guarantee coefficient of whole engineering thereupon.According to the situation of personnel and equipment, whole engineering can be divided into several stations and install simultaneously, saved man-hour, accelerated the progress of engineering, save fund, and guaranteed workmanship.Method of the present invention is applicable to the construction of the rope frame steel work of similar large stadium.
Description of drawings
Accompanying drawing 2 is column unit and cantilever frame structural representation;
Accompanying drawing 3 is column lower node structural representations;
Accompanying drawing 4 is column unit cable wind rope floor map.
Accompanying drawing acceptance of the bid keep the score state as follows: 1---column unit; 2---column; 3---upper connecting rod; 4---lower chord; 5---lower ring; 6---lower link; 7---the column lower node; 8---the lower ring node; 9---go up ring beam joint; 10---cantilever frame; 11---permanent tractive cable wire; 12---the bulb on the column lower node; 13---the ball seat on the reinforced concrete beam column on the precast plate; 14---reinforced concrete beam column; 15---grandstand; 16---cable wind rope; 17---length adjuster; 18---anchor point; 19---go up ring beam.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.80,000 square metres of sports center, Wuhan field house areas are provided with two layers of grandstand of 45 meters of height overalls, can hold 60,000 spectators, and first-class site facility can be born first-class big event both at home and abroad.Oval platform is formed by four petal grandstands in the stadium, 277 meters of major axis, 245 meters of minor axises.Grandstand adopts frame structure system, and four angle tubes are set, and one of frame be the overcanopy bearing, and overcanopy adopts popular in the world rope film stretching-drawing structure at present, apply give behind the stress common stressed with one of frame, one one rope membrane structure of formation frame system.
The overcanopy structure of rope film stretch-draw is adopted in the stadium, and the topped area that supports the steel work of this overcanopy structure is 27600m
2Structural steelwork mainly is made up of three parts: first is for the column being rigidity master's support at center; Second portion is for the strop being the flexible secondary support at center; Third part is for being called as the attachment component that equipment such as light and sound equipment are used that is provided with of " packway ".The beam column that is provided with four cast-in-situ concrete pit shafts and 56 large-scale declined beams of encorbelmenting in the ellipsoidal structure in whole stadium is a lower support, 56 column units of steel work promptly are located on these 56 beam columns, and they are petal symmetrical distribution all around along the stadium.The about 35t of column unit body maximum weight, the maximum Pin of truss is 1499 * 1099 * 52011mm, heavily about 26t, the maximum length of encorbelmenting is 52.0105m, the about 4000t of overcanopy steel work gross weight, total maximum absolute altitude 54.681m.
Adopt method of the present invention that above-mentioned engineering is constructed, the rigidity main supporting structure adopts in the middle of the stepping of position interpolation that method is installed, whole engineering is divided into two stations constructs simultaneously, respectively from northeast, southwest 28# and 56# post begin clockwise direction and carry out.After lifting taked integral unit to install 2 at interval, the mode that the benefit unit is pieced together in middle interpolation installation circulated and carries out.Accompanying drawing 1 is shown as 14 steps with 5 rigidity masters of the 1st rigidity master support unit to the support unit erection sequence, has very clearly expressed the erection sequence of interpolation installation method in the middle of the stepping of position.To the 14th step, 5 unit combination are one, and its lower and upper cross-member links together.
Before the integral unit lifting, on column, fasten the steel cable of three φ 28 in node and the otic placode pin shaft hole that last drag-line is connected, and between two upper connecting rods and column lower node, the about 1.2m eminence in plane on the lower edge truss is fastened the white palm rope of φ 12mm and is held up rope as the walking safety of installation exercise.On two lower-chord panel points, fasten the wirerope of two φ 17.5mm, and at east, the two layers of grandstand in Westbound, the longeron both sides of inner the corresponding patten of edge grandstand of north and south district one deck, bore the through hole of φ 56 respectively, the wire rope that penetrates φ 28 makes it to connect into ring-type with shackle, as ring beam unit guy anchor point.Before the ring beam unit lifting, around all concrete columns, put up the scaffold concordant, and spread plank, as the operating platform of installing on the scaffold top with capital.With the lifting of three suspension centre methods, the lifting central post should be in the slightly inward inclined state of basic plumbness or top.In the unit lifting process, the relative position of white palm rope adjustment unit that should be by tying up to the lower-chord panel point place makes the corresponding position that falls with the embedded board ball seat of column lower node bulb, will seal in the 5t Chain block in three steel cable wind ropes again.Respectively cable wind rope is pulled to the anchor point of internal field grandstand, and under the monitoring of transit, carry out the adjustment of column verticality and two lower-chord panel point locus.Carry out then lower link and embedded board to drawing welding.After this unit is installed firmly, carry out the lifting of next integral unit again.After two integral unit hoisting and locating finished, lifting was mended in the embedding of interpolation unit in the middle of carrying out again, installs until all rigidity master support units; Whole steel work combines as a whole with the pit shaft in four orientation, be supported on all reinforced concrete beam columns, forms secondary large-scale rigidity master's support unit steel structure framework aloft.And then diagonal brace and attachment component between cantilever frame, the cantilever frame are installed, overall structure is installed promptly to accuse and is finished.
Claims (4)
1, the job practices of the large-scale rope frame in a kind of space steel structure system is characterized in that, described job practices is divided into three phases with whole engineering and carries out successively:
Phase I, adopt every the middle interpolation of position stepping and whole rigidity master's support units are installed and are combined into large-scale rigidity main supporting structure skeleton with four pit shafts;
Second stage is installed cantilever frame, makes it form permanent the combination with rigidity main supporting structure skeleton;
Phase III, strop and appurtenances are installed, finish whole large-scale rope frame steel structure systems;
Concrete mounting method step is as follows:
A, whole engineering are divided into one or more station, and each station all is docile and obedient hour hands or is counterclockwise installed simultaneously;
B, at each station, with lifting handling machinery with first rigidity master support unit (1) integral lifting, accurately locate and stand on the accepting on the position (13) of first reinforced concrete beam column (14), with lower link (6) the first rigidity master support unit (1) and reinforced concrete beam column (14) are linked together, fix the first rigidity master support unit (1) with several interim guy tractive cable wires (16) tractive and make it be in stable state;
C, with lifting handling machinery with the 3rd rigidity master support unit (1) integral lifting, accurately locate and stand on the accepting on the position (13) of the 3rd reinforced concrete beam column (14), with lower link (6) the 3rd rigidity master support unit (1) and reinforced concrete beam column (14) are linked together, fix the 3rd rigidity master support unit (1) with several interim guy tractive cable wires (16) tractive and make it be in stable state;
D, the assembly component that will form the interpolation unit or loose mail lift by crane, locate and be installed in the accepting on the position (13) of second reinforced concrete beam column (14) successively, and with first, the 3 two reinforced concrete beam column (14) on the first and third rigidity master support unit (1) that installed be welded to connect or high-strength bolt is connected; Eliminate the accumulative total rigging error that produces in the installation of adjacent Unit two simultaneously; With several interim guy tractive cable wires (16) tractive fixedly the second rigidity master support unit (1) of interpolation make it be in stable state;
E, carry out remaining element according to C, D two step repetitive cycling and install, install until rigidity master's support unit (1) of whole space large-scale rope frame steel work; Whole rigidity main supporting structure combines as a whole with the pit shaft in four orientation, be supported on all reinforced concrete beam columns (14), forms a secondary large-scale rigidity main supporting structure skeleton aloft;
F, be welded to connect with cantilever frame (10) integral lifting and with rigidity master support unit (1) and permanent cable traction is connected;
G, with the assembly unit and be connected it mutually of the diagonal brace between the cantilever frame (10) and attachment component and completed large-scale rigidity main supporting structure skeleton and cantilever frame (10);
H, interior strop promoted be installed on the main rope folder that is welded in advance on the modified scissors truss; So far, all space large-scale rope frame steel structure system installations.
2, method according to claim 1 is characterized in that; The structure that described rigidity master's support unit (1) is made up of the seamed edge of triangular cone, wherein the seamed edge perpendicular to horizontal plane promptly is alleged column (2); During with this element (1) integral lifting, should keep column (2) vertical substantially, make bulb (12) correspondence on the column lower node (7) fall to being positioned on the embedded board ball seat (13) on the reinforced concrete beam column (14), under the monitoring of transit, carry out the adjustment of lower ring node (8) locus of column (2) verticality and two lower chords (3) lower end, adjust qualified after, lower link (6) upper end is connected with high-strength bolt with lower ring node (8) in the rigidity master support unit (1), again with the lower end of lower link (6) and the embedded board on the reinforced concrete beam column (14) to drawing welding, high-strength bolt connects.
3, method according to claim 1 and 2 is characterized in that: described interpolation unit is divided into the weld assembly of following several assembly or loose mail: A, a root post lower node (7) and a lower edge truss (4); B, a lower edge truss (4) assembly; C, a root post (2) are with two upper connecting rods (3) assembly that ring beam joint (9) is located to connect on the column upper end; D, rod assembly; E, loose mail: lower ring (5), lower link (6), last ring beam (19), bearing pin; Assembly and loose mail need guarantee that all the precision of member and related angle, size is not overproof.
4, method according to claim 1, it is characterized in that: the other end of the described cable wind rope (16) that is connected with column unit (1) is that interconnection is in the reserving hole (18) of the reinforced concrete beam column that closes on (14), or be connected on other the reinforced concrete structure that closes on, be provided with length adjuster (being Chain block) (17) in the middle of the cable wind rope (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031184650A CN1195136C (en) | 2003-01-15 | 2003-01-15 | Construction method for large overhead cable-steel structure system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031184650A CN1195136C (en) | 2003-01-15 | 2003-01-15 | Construction method for large overhead cable-steel structure system |
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| CN1517502A CN1517502A (en) | 2004-08-04 |
| CN1195136C true CN1195136C (en) | 2005-03-30 |
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| CNB031184650A Expired - Fee Related CN1195136C (en) | 2003-01-15 | 2003-01-15 | Construction method for large overhead cable-steel structure system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353014C (en) * | 2006-07-07 | 2007-12-05 | 贵州大学 | Large-span periphery triangular pyramid simple-supporting and inside folding prestressed steel grid structure |
| CN100353013C (en) * | 2006-07-07 | 2007-12-05 | 贵州大学 | Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure |
| CN102787721B (en) * | 2012-04-04 | 2014-11-19 | 中国航空规划建设发展有限公司 | Construction error compensating method for cable dome structure |
| CN107842109B (en) * | 2017-11-30 | 2024-01-30 | 潍坊学院 | Endless cable node for irregular plane cable net |
| CN108643595B (en) * | 2018-06-29 | 2023-04-28 | 浙江省二建钢结构有限公司 | Full-automatic correcting device for cantilever steel beam and construction method thereof |
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