CN102912972B - Multifunctional lifting steel platform switching jig and construction method - Google Patents
Multifunctional lifting steel platform switching jig and construction method Download PDFInfo
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- CN102912972B CN102912972B CN201210431151.3A CN201210431151A CN102912972B CN 102912972 B CN102912972 B CN 102912972B CN 201210431151 A CN201210431151 A CN 201210431151A CN 102912972 B CN102912972 B CN 102912972B
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Abstract
The invention relates to a multifunctional lifting steel platform switching jig and a construction method. The multifunctional lifting steel platform switching jig comprises adjustable short steel columns I, a steel structure switching platform, a support jig and a switching steel beam, the multifunctional lifting steel platform switching jig is characterized in that multiple adjustable short steel columns I are respectively welded on embedded parts arranged on a structure column of a top plate of a basement so as to form a base, which is aligned to the top surface, the base is welded with the steel structure switching platform formed by steel structure trusses, the bottom of the support jig is welded on the steel structure switching platform, and the switching steel beam is welded on a support jig standard knot of the support jig. The multifunctional lifting steel platform switching jig provided by the invention has the characteristics of reasonable design, good bearing property, simple construction and installation, material reclamation and the like, and is particularly suitable for ground engineering with larger height difference and narrow construction field, and is capable of effectively solving the temporary jig construction difficulty of a cantilever structure and insufficient storage yard.
Description
Technical field
The invention belongs to steel structures in construction works installing area, particularly a kind of multi-functional lift steel platform conversion moulding bed and construction method of lifting.
Background technology
Along with the not section development of builing industry, cantilevered structure is with its graceful moulding, the open visual field has become one of main flow form of Development of High-rise Buildings in engineering, various forms of large cantilevered structures are more and more applied in engineering, full hall scaffold or temporary supporting moulding bed are normally set up in traditional large cantilevered structure construction, according to the difference of form of structure and field condition, the form of moulding bed is also varied, due to a variety of causes, its stress point generally drops on basement roof, but because basement roof structural-load-carrying capacity is limited, conventionally must reinforce structure at basement, construction is comparatively complicated, if scene is limited by objective condition simultaneously, construction plant is narrow and small, the structural plane absolute altitude discrepancy in elevation is larger, in this situation, set up one and can meet cantilevered structure construction and easy construction, can solve again the moulding bed of the not enough situation in stockyard, it is a great problem that technician faces.
Summary of the invention
Problem and shortcoming that the present invention exists in order to overcome above-mentioned prior art, provide and set up a kind of multi-functional lift steel platform conversion moulding bed and construction method of lifting, solve support jig ground and had the discrepancy in elevation, tradition moulding bed will start the difficult problem transforming from basement, give full play to the large advantage of concrete structure column compressive strength, structure is participated in directly stressed, whole stress system is more firm, reliably, moulding bed member prefabrication simultaneously, on-site hoisting, be welded to connect, easy construction, after the installation of moulding bed platform, except the part that moulding bed standard knot is taken root, all can be used as interim material stockyard, after cantilevered structure has been constructed, the dismountable turnover of moulding bed is used, reduce construction costs.
Technical scheme of the present invention is:
A kind of multi-functional lift steel platform conversion moulding bed of lifting, comprise some adjustable steel short column I, steel work conversion platform, support jig, conversion girder steel, it is characterized in that: some adjustable steel short column I are welded on respectively and on basement roof structural column, arrange on built-in fitting and form the equal base of end face, the steel work conversion platform that welding is made up of steel structure truss on base, support jig bottom welding is on steel work conversion platform, and conversion girder steel is welded on the support jig standard knot of support jig.
Described steel work conversion platform is transfer truss, and all truss of transfer truss are H shaped steel and are welded to connect.
Described support jig is made up of support jig standard knot and horizontal connection steel truss, support jig standard knot is arranged on respectively on steel work conversion platform and forms corresponding two sub-trusses, welds the horizontal connection truss being welded by cylindrical steel tube between two sub-trusses.
Described changes girder steel into square crossing and at conplane two H shaped steel.
Steel platform conversion moulding bed of the present invention also comprises 8 steel short column II and 16 block plate connectors, a block plate connector is welded respectively at the two ends of every steel short column II, divides two groups to be welded on respectively between conversion girder steel and support jig standard knot at two ends with 8 steel short column II of steel plate connector.
A multi-functional construction method of lifting lift steel platform conversion moulding bed, is characterized in that comprising the following steps and carries out:
(1) some built-in fittings are embedded in respectively on basement roof structure cylinder, the H shaped steel short column I of customization different length is separately fixed on built-in fitting 1, the transfer truss being combined by single truss structure and two truss structures is welded on respectively in all steel short column I;
(2) install respectively in the relevant position of transfer truss by cylindrical steel tube lattice column standard knot, shaped steel lattice column standard knot or the two and form corresponding two sub-trusses in conjunction with the support jig standard knot forming, the fixing horizontal connection truss being welded by cylindrical steel tube between two sub-trusses;
(3) after support jig installation, conversion girder steel is installed at each support jig top, and is changed girder steel into square crossing and at conplane two H shaped steel, weld with support jig standard knot.
Construction method of the present invention is further comprising the steps of: if having a gap with the conversion girder steel top mark requiring is high after the installation of support jig standard knot, customizable 8 steel short column II, every steel short column II bottom and top are welded with respectively steel plate connector, divide two groups to be arranged on respectively the base of support jig standard knot top as welding conversion beam the steel short column II with steel plate connector, working platform is set for construction cantilevered structure on the top of conversion beam.
The present invention is to provide a kind of multi-functional construction method of lifting lift steel platform conversion moulding bed, by platform bottom adjustable steel short column, steel work conversion platform and support jig composition, on the basement roof structural column of the discrepancy in elevation, built-in fitting is set and is connected to form the equal base of end face with steel short column different in size by existing on ground, the steel work conversion platform that welding is made up of steel structure truss on base, take root in support jig bottom on steel work conversion platform, between each moulding bed, connected by horizontal connection steel truss, form stable support jig, steel work conversion platform other parts can be used as interim material stockyard simultaneously.
Brief description of the drawings
Fig. 1 is the pre-buried and connection diagram of adjustable steel short column 2 of the present invention.
Fig. 2 is transfer truss 4 scheme of installations of steel platform conversion moulding bed of the present invention.
Fig. 3 is support jig standard knot 5 scheme of installations of the present invention.
Fig. 4 is horizontal connection truss 6 scheme of installations of the present invention.
Fig. 5,6,7 is support jig top conversion girder steel 7 scheme of installations.
Fig. 8 is the schematic diagram of steel platform conversion moulding bed of the present invention.
Fig. 9 is the A-A view of Fig. 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail:
As shown in Figure 8, Figure 9, the multi-functional lift steel platform conversion moulding bed of lifting of the present invention, comprise some adjustable steel short column I 2, steel work conversion platform, support jig, conversion girder steel 7, some adjustable steel short column I 2 are welded on respectively and on basement roof structural column, arrange on built-in fitting 1 and form the equal base of end face, the steel work conversion platform that welding is made up of steel structure truss on base, support jig bottom welding is on steel work conversion platform, and conversion girder steel 7 is welded on the support jig standard knot of support jig; Described steel work conversion platform is transfer truss, and all truss of transfer truss are H shaped steel and are welded to connect; Described support jig is made up of support jig standard knot 5 and horizontal connection steel truss 6, support jig standard knot 5 is arranged on respectively on steel work conversion platform and forms corresponding two sub-trusses, welds the horizontal connection truss 6 being welded by cylindrical steel tube between two sub-trusses; Described changes girder steel 7 into square crossing and at conplane two H shaped steel.
Steel platform conversion moulding bed of the present invention also comprises 8 steel short column II 8 and 16 block plate connectors 9, a block plate connector 9 is welded respectively at the two ends of every steel short column II 8, and two ends are welded on respectively between conversion girder steel 7 and support jig standard knot 5 with 8 points two groups of 8 steel short column II of steel plate connector 9.
As shown in Figure 1, in the time of basement roof structure construction, some built-in fittings 1 are embedded in respectively on basement roof structure cylinder, steel short column I 2 is removed embedded part surface concrete before installing, make embedded part expose metal covering, for ensureing the compactness between steel column and concrete structure, adopt the special grouting material of steel work suspension column to be carried out to back-grouting, the compactness requirement of guaranteeing to construct.The H shaped steel short column 2 of the different length of customization is weldingly fixed on built-in fitting 1.
Be the lattice truss that single truss structure and two truss structures combine according to the transfer truss 4 of engineering characteristic customization steel structure platform, all steel trusss are H shaped steel and are welded to connect.
As shown in Figure 2, transfer truss 4 is installed on steel short column 2 by tower crane, transfer truss 4 adopts groove welding with the steel short column 2 top places of flushing, and adopts fillet weld with intersection, the post edge of a wing, and transfer truss 4 beam beam joints adopt full-strength weld, guarantee welding quality.All transfer trusses install and form conversion steel platform.
As shown in Figure 3, install by cylindrical steel tube lattice column standard knot, shaped steel lattice column standard knot or the two in conjunction with the support jig standard knot 5 form in transfer truss 4 relevant positions, support jig standard knot 5 and transfer truss 4 are welded to connect.Have multiple support jig standard knots 5, will its H section steel beam or cylindrical steel tube alignment after welding, beam beam joint adopts full-strength weld, pipe is the place of passing through employing penetration weld mutually, end bevel.
As shown in Figure 4, support jig standard knot 5 installs, start to install the lattice moulding bed horizontal connection truss 6 being welded by cylindrical steel tube, the whole Pin lifting of horizontal connection truss 6 use tower crane, overhead connection, the round steel pipe mutually place of passing through adopts penetration weld, end bevel, and round steel pipe and shaped steel joint adopt fillet weld.
As shown in Fig. 5,6,7, two support jig installations, finally install conversion girder steel 7 at each support jig top, change girder steel 7 into square crossing and at conplane two H shaped steel, weld with support jig standard knot 5.If have a gap with the conversion beam top mark requiring is high after standard knot 5 installations, customizable steel short column II 8 is arranged on the base of standard knot top as conversion girder steel 7, and short column can be cylindrical steel tube or shaped steel, and bottom and top are welded with respectively the convenient welding of steel plate connector 9.
Whole steel platform conversion moulding bed set up stable after, the working platform cantilevered structure of can constructing is set on conversion girder steel 7 tops, except the part that moulding bed standard knot is taken root, all can be used as interim material stockyard simultaneously.
Claims (7)
1. the multi-functional lift steel platform conversion moulding bed of lifting, comprise some adjustable steel short column I, steel work conversion platform, support jig, conversion girder steel, it is characterized in that: some adjustable steel short column I are welded on respectively and on basement roof structural column, arrange on built-in fitting and form the equal base of end face, the steel work conversion platform that welding is made up of steel structure truss on base, support jig bottom welding is on steel work conversion platform, and conversion girder steel is welded on the support jig standard knot of support jig.
2. the multi-functional lift steel platform conversion moulding bed of lifting according to claim 1, is characterized in that: described steel work conversion platform is transfer truss, and all truss of transfer truss are H shaped steel and are welded to connect.
3. the multi-functional lift steel platform conversion moulding bed of lifting according to claim 1, it is characterized in that: described support jig is made up of support jig standard knot and horizontal connection steel truss, support jig standard knot is arranged on respectively on steel work conversion platform and forms corresponding two sub-trusses, welds the horizontal connection truss being welded by cylindrical steel tube between two sub-trusses.
4. the multi-functional lift steel platform conversion moulding bed of lifting according to claim 1, is characterized in that: described changes girder steel into square crossing and at conplane two H shaped steel.
5. according to the multi-functional lift steel platform conversion moulding bed of lifting described in claim 1,2,3 or 4, it is characterized in that: also comprise 8 steel short column II and 16 block plate connectors, a block plate connector is welded respectively at the two ends of every steel short column II, divides two groups to be welded on respectively between conversion girder steel and support jig standard knot at two ends with 8 steel short column II of steel plate connector.
6. a multi-functional construction method of lifting lift steel platform conversion moulding bed, is characterized in that comprising the following steps and carries out:
(1) some built-in fittings are embedded in respectively on basement roof structure cylinder, the H shaped steel short column I of customization different length is separately fixed on built-in fitting 1, the transfer truss being combined by single truss structure and two truss structures is welded on respectively in all steel short column I;
(2) install respectively in the relevant position of transfer truss by cylindrical steel tube lattice column standard knot, shaped steel lattice column standard knot or the two and form corresponding two sub-trusses in conjunction with the support jig standard knot forming, the fixing horizontal connection truss being welded by cylindrical steel tube between two sub-trusses;
(3) after support jig installation, conversion girder steel is installed at each support jig top, and is changed girder steel into square crossing and at conplane two H shaped steel, weld with support jig standard knot.
7. multi-functional construction method of lifting lift steel platform conversion moulding bed according to claim 6, characterized by further comprising following steps: if having a gap with the conversion girder steel top mark requiring is high after the installation of support jig standard knot, customizable 8 steel short column II, every steel short column II bottom and top are welded with respectively steel plate connector, divide two groups to be arranged on respectively the base of support jig standard knot top as welding conversion girder steel the steel short column II with steel plate connector, working platform is set for construction cantilevered structure on the top of conversion girder steel.
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| CN103195256B (en) * | 2013-04-02 | 2015-04-29 | 广东省建筑工程集团有限公司 | Hanging column type steel structure jig frame construction method |
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| CN113431339A (en) * | 2021-06-17 | 2021-09-24 | 江苏兴厦建设工程集团有限公司 | Supporting-free mounting process for three-section column umbrella-shaped overhanging component |
| CN113482043B (en) * | 2021-06-18 | 2023-04-25 | 上海二十冶建设有限公司 | Basement roof steel truss prefabrication splicing jig frame and installation method thereof |
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Effective date of registration: 20221123 Address after: Room 2105, 21st Floor, Tongda Plaza, No. 111 Wenhua Avenue, Jiangxia District, Wuhan City, Hubei Province 430000 Patentee after: THE SECOND CONSTRUCTION Co.,Ltd. OF CHINA CONSTRUCTION THIRD ENGINEERING BUREAU Patentee after: China Construction Third Engineering Bureau Group (Jiangsu) Co.,Ltd. Patentee after: China Construction Third Engineering Bureau second construction and installation Co.,Ltd. Patentee after: CHINA CONSTRUCTION THIRD ENGINEERING BUREAU GREEN INDUSTRY INVESTMENT Co.,Ltd. Address before: 430074 No. 306 Lu Lu, Hongshan District, Hubei, Wuhan Patentee before: THE SECOND CONSTRUCTION Co.,Ltd. OF CHINA CONSTRUCTION THIRD ENGINEERING BUREAU |