CN203947771U - A kind of Bailey beam pendent form support system - Google Patents
A kind of Bailey beam pendent form support system Download PDFInfo
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- CN203947771U CN203947771U CN201420391996.9U CN201420391996U CN203947771U CN 203947771 U CN203947771 U CN 203947771U CN 201420391996 U CN201420391996 U CN 201420391996U CN 203947771 U CN203947771 U CN 203947771U
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- bailey beam
- support system
- form support
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- pendent
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Abstract
The utility model discloses a kind of Bailey beam pendent form support system, comprise the vertical lateral stressed truss (2) of Bailey beam (1) composition; Laterally in Bailey beam (3), be provided with suspension rod (5), described suspension rod hangs two-way i iron bearing platform (7) through layer of concrete structure bed die (6); Described platform top is provided with steel pipe scaffold form bracing system (8), described horizontal Bailey beam is arranged on longitudinal Bailey beam (9) by interval vertical, and longitudinally Bailey beam (9) is bearing on frame construction or temporary supporting (10).The utility model does not take construction plant, is applicable to aerial vestibule, large atrium and the conversion layer engineering cast-in-place concrete construction of steel concrete or shaped steel combination structure, is particularly useful for not occurring with original structure the addition of stressed relation, manifests unique advantage.
Description
Technical field
The present invention relates to a kind of braced structures and construction method of building cast-in-situ engineering, relate in particular to a kind of Bailey beam pendent form support system.
Background technology
Be accompanied by making rapid progress of the national economic development, highway, bridge also more and more become four-way prosperity; Building external form also differs from one another, and the different in nature structure of the aerial vestibule of reinforced concrete structure or reinforced concrete composite structure, indoor large atrium, conversion layer and exotic shape increases increasingly.Traditional full hall scaffold support system, the shortcoming of steel pipe support Bailey beam stent support system, as it is large, high, less economical to foundation bearing capacity requirement to set up long in time limit, component and fitting use amount, day by day manifest as scaffolding height 30m and with first-class, even can not use.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of building operations braced structures, and a kind of Bailey beam pendent form support system is especially provided, and has solved the drawback of conventional construction method in above-mentioned industry.
Technical problem to be solved by this invention is achieved through the following technical solutions:
A kind of Bailey beam pendent form support system, comprises the vertical lateral stressed truss that individual layer or multilayer Bailey beam form; On the lower chord of horizontal Bailey beam, be provided with fining twisted steel suspension rod, described suspension rod hangs vertical bidirectional load-bearing i iron platform through layer of concrete structure bed die; Described suspension rod is outer can overlap pvc pipe; Described platform top is provided with conventional steel pipe scaffold form bracing system.Can adjust absolute altitude and the planeness of described bearing platform by adjusting the length of described suspension rod, thereby form pendent form support system.
Described horizontal Bailey beam is arranged vertically on longitudinal girder steel by design pitch, utilizes self permissible stress to bear the working load that concreting produces.Described longitudinal Bailey beam is bearing on available frame structure or temporary supporting, by available frame structure or temporary supporting, load is passed to basis.
The construction of a kind of Bailey beam pendent form support system of the present invention, comprises the following steps:
Increase the vertical lateral stressed truss of building layer top and set up in advance individual layer or multilayer Bailey beam composition at floor to be onstructed; On the lower chord of horizontal Bailey beam, be provided with fining twisted steel suspension rod, load-bearing i iron operating platform is laid in bottom.
Specifically comprise: built-in fitting, support are installed; Bailey beam spelling, lifting; Dress bed die suspension platform; Adjust absolute altitude; Form bracing system is installed; Cast-in-place concrete structure construction and maintenance; Stripping support and suspension system; Remove Bailey beam support.
Described step also comprises:
Described built-in fitting and i iron support should be by 1:1 setting-out;
Described built-in fitting adopts two i iron, and upper end exceeds floor face, and bottom anchors into below frame construction;
Described built-in fitting top weldable steel plate, the pedestal supporting as longitudinal Bailey beam;
Described support makes as two i iron, with pedestal weld all around;
Described Bailey beam is connected by U-bolt with supporting base or welds.
Embedded U-shaped reinforcing bar suspension hook when described structure construction.
Smooth and easy coincideing is describedly installed by pin and bolt to Bailey beam spelling, lifting in length and breadth;
When described Bailey beam lifting, if adopt steel pipe temporary fixed when described list is organized, prevent from toppling; Every two groups adopt horizontal brace and perpendicular support to be linked to be entirety.
Described suspension rod lower end hangs i iron, forms the bearing platform of bed die support system.
Setting up steel pipe scaffold form bracing system installs;
Described concreting is along external scaffolding located level ground pump line, and pump line end, described ground adds rubber hose, with concreting with dismantling pump line.
Described suspention bearing platform is installed and mould bases support system set up qualified after, enter next process.For controlling concrete structure pouring quality, in work progress, Bailey beam and other primary structure members are carried out to deformation monitoring, adopt precision level, in longitudinal Bailey beam fulcrum location and horizontal Bailey beam span centre, observation point is set, observe its amount of deflection in loading procedure change.
Described monitoring periods, main monitoring time dot sequency is as follows: Bailey beam installation, template installation, reinforcing bar binding completes, concreting 1/2, concreting 3/4, concreting completes.
In described monitoring process, admissible value and alarming value are set, allowable strain value is for calculating amount of deflection, and alarming value is 1.1 times of values calculating amount of deflection.
For eliminating the support system nonelastic deformation of Bailey beam pendent form and detecting its elastic deformation value, correctly evaluate the degree of safety of this system, for beam-slab template arch camber provides foundation, after having set up, system should carry out precompressed to support.
Support system of the present invention and engineering method thereof adopt technique scheme, compared with prior art have following technological merit:
1. do not affect the construction speed of original main building, insert or parallel construction skybridge, large atrium and conversion coating etc. in good time, do not take duration critical circuits.
2. the occupied ground hardly of constructing, narrow and small for construction plant, oversize vehicle and hanging device pass in and out at need, and this technology shows unique advantage.
3. because Bailey beam is simple in structure, convenient transportation, sets up fast, and carrying capacity is large, and interchangeability is good, and adaptable feature can utilize on-the-spot existing tower crane to lift.
4. Bailey beam is on-site consolidation, without additional processing, and can the reduction of erection time 10%～50%.
5. solved in a way full hall and landed the out of use problem of the formwork systems such as scaffold, such as the existed building addition of stressed relation does not occur with original structure.
6. expense is low, and than conventional scaffold, construction costs reduces by 20%～30%.
7. support system of the present invention and engineering method thereof are applicable to the building engineering cast-in-place concrete constructions such as aerial vestibule, large atrium and the conversion layer of reinforced concrete structure or shaped steel combination structure, be particularly useful for not occurring with original structure the existed building addition of stressed relation, comprise and be applicable to the cast-in-place engineering such as bridge, road taking Bailey beam pendent form support system as main stressed member in the engineering such as road and bridge, municipal administration.
8. in conjunction with above feature, Bailey beam form bracing system of the present invention has overcome existing steel work form bracing system operating difficulties, long in time limit, cost is high, the shortcoming of waste of material, have advantages of easy and simple to handle, the duration is short, cost is relatively low, waste of material is few.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is process chart of the present invention
Fig. 2-1 is built-in fitting of the present invention, support mounting vertical plane figure
Fig. 2-2 are built-in fitting of the present invention, support side view is installed
Fig. 3 is Bailey truss bed die bearing platform elevation of the present invention
Fig. 4-1 is Bailey beam pendent form support system schematic diagram one of the present invention
Fig. 4-2 are Bailey beam pendent form support system schematic diagram two of the present invention
Shown in figure: 1-Bailey beam, 2-indulges lateral stressed truss, the horizontal Bailey beam of 3-, 4-lower chord, 5-fining twisted steel suspension rod, 6-layer of concrete structure bed die, the two-way i iron bearing platform of 7-, 8-steel pipe scaffold support system, the longitudinal Bailey beam of 9-, 10-frame construction or temporary supporting, 11-built-in fitting, 12-supports, 13-frame construction
Detailed description of the invention
If Fig. 2-1 is to the Bailey beam pendent form support system as shown in Fig. 4-2, be with individual layer or the vertical lateral stressed truss 2 of multilayer Bailey beam 1 composition, laterally on Bailey beam 3 lower chords 4, fining twisted steel suspension rod 5 is being installed; Described suspension rod cover pvc pipe, hang vertical bidirectional load-bearing i iron platform 7 through layer of concrete structure bed die 6, described platform top installs steel pipe scaffold form bracing system 8 routinely, can adjust absolute altitude and the planeness of described bearing platform by adjusting the length of suspension rod, thereby form pendent form support system.Laterally Bailey beam 3 is arranged vertically on longitudinal Bailey beam 9 by design pitch, utilizes self permissible stress to bear the working load that concreting produces.Described longitudinal Bailey beam is bearing on available frame structure or temporary supporting 10, by it, load is passed to basis.
The technological process of Bailey beam pendent form support system as shown in Figure 1, specifically comprises the following steps and key points for operation:
One, preparation of construction
1. all use materials in engineering method, as Bailey beam, built-in fitting 11, i iron, scaffolding 12 support etc. qualified.
2. embedded part needs drilling, and drilling is carried out after by inspection the welding of all weld seams is complete.
3. Bailey truss beam should carry out on flooring or ground assembledly in advance after marching into the arena, and pre-assembled must completing under free state, must not fix by force.Must be according to working drawing coordinate dimension before pre-assembled, set up intercolumniation assembling tyre and carry out trial assembly.When trial assembly, it is closely connected that bolt will be fastened to rod member, and connecting bolt number must not be lower than 50% of eyelet sum, and other answer inserting bolt bar.Trial assembly stays detailed inspection to record qualified rear use.When Bailey bracket trial assembly, all holes should be able to pass freely through shank of bolt.After pre-assembled passed examination, tackle this group truss and stamp grade of steel, mark clearly, do typesetting record.
Two, measure setting-out
1. built-in fitting and i iron support and should, by 1:1 setting-out, note the annexation between Bailey beam when setting-out; In Bailey beam and frame construction 13, vertical, horizontal steel bar relation, if clash, develop programs ahead of time, after approval, implements.
2. measuring equipment and equipment need, in calibrating period of validity, should examine and determine while exceeding again.
3. throw and survey to existing structure to Bailey beam axial location, absolute altitude in length and breadth, deviation should meet " Code for engineering surveying " and " Beijing's engineering measuring technology code " newest standards relevant provision.
Three, built-in fitting, support are installed
The stressed fulcrum of described longitudinal Bailey beam supporting structure is arranged in frame construction 13, described built-in fitting 11 adopts two i iron, more than upper end exceeds floor face 100mm, more than bottom anchors into the following 1000mm of frame construction 13, as the built-in fitting of Fig. 2-1, supporting plane figure, the built-in fitting of Fig. 2-3, support side figure.
Built-in fitting 11 top welding steels, as longitudinal Bailey beam supporting base 12.Described support is used two i iron, with pedestal weld all around, and secondary and above weld seam, weld bead height is not less than 8mm.Bailey beam and supporting base according to reality whether embedding with concrete in, can adopt U-bolt connect or welding.
In the time of the work high above the ground such as large atrium, conversion layer, aerial vestibule, for convenience of the dismounting of bearing platform, need be in the time of structure construction embedded U-shaped reinforcing bar, spacing is pressed schematic design.
Four, Bailey beam spelling, lifting
Bailey beam is transported to behind scene, pre-splicing on ground, in work progress, can carry out with reference to " highway bridge and culvert construction technique normalizing ", the construction technical requirement of installing in strict accordance with steel bridge operates, must not be to the transformation of getting angry of standard Bailey bracket in process, when pin and bolt installation, should smooth and easyly coincide, must not firmly knock by force, every three Pin mono-assembly complete, and brace is installed on inspection, each securing member can carry out lifting operation after firmly errorless.Adopt mobile crane or tower crane to be lifted on bracing frame.
Five, bed die suspension platform is installed as shown in Figure 3
After Bailey beam installation, laterally on Bailey beam lower chord, fining twisted steel suspension rod is being installed in length and breadth, suspension rod lower end hangs in length and breadth to word steel, and spacing, according to schematic design, forms the bearing platform of bed die support system.Can adjust absolute altitude and the planeness of i iron by adjusting the length of screw-thread steel.
Six, form bracing system is installed as shown in Figure 4
After the installation of bed die support platform, check and accept.After checking and accepting, on platform, carry out the installation of steel pipe scaffold form bracing system by schematic design.After form bracing system has been set up, program is checked and accepted routinely, form bracing system figure as shown in Fig. 4-1, Fig. 4-2.
Seven, cast-in-place concrete structure construction and maintenance
1. when preventing from toppling over concrete, the load that template face is produced is excessive, concreting should not adopt pumping or material distributing machine to carry, should be along external scaffolding located level ground pump line, ground pump line should not be connected with form bracing system, add rubber hose in pump line end, ground, with concreting with dismounting pump line.
2. concreting and maintenance are referring to constructure scheme and " concrete structure engineering job specfication " relevant provision.
3. for controlling concrete structure pouring quality, in work progress, Bailey beam and other primary structure members are carried out to deformation monitoring.
4. monitoring method: adopt precision level, in longitudinal Bailey beam fulcrum location and horizontal Bailey beam span centre, observation point is set, observe its amount of deflection in loading procedure change.
5. monitoring periods, main monitoring time dot sequency is as follows: Bailey beam installation, template installation, reinforcing bar binding completes, concreting 1/2, concreting 3/4, concreting completes.
6. in monitoring process, admissible value and alarming value are set, allowable strain value is for calculating amount of deflection, and alarming value is 1.1 times of values calculating amount of deflection, when monitoring result in work progress reaches alarming value, stops construction, analyzes reason and processes.
Eight, after this layer of structure construction completes, if also have lower one deck structure, way construction routinely.
Nine, stripping support and suspension system
Reach after design strength through test cube in the same condition intensity, in the time that project technician adjusts satisfied lower step needs, fill in " concrete form removal request slip " stripping support system after approval.
After form bracing system is removed, by regulating the loosening bearing platform of fining twisted steel.When work high above the ground, use jack progressively bearing platform i iron to be transported to surrounding structure, reach ground by having bad luck equipment, complete the dismounting of suspention bearing platform.
Ten, remove Bailey beam support
Unclamp connecting elements between girder steel, if the longitudinal Bailey beam part in bearing place embedding with frame construction in, first by embedded part excision, then use tower crane or mobile crane by Bailey beam handling to ground.
Benefit of the present invention:
1. social benefit
Bailey beam pendent form support system can be applied to the position constructions such as reinforced concrete structure or the aerial vestibule of reinforced concrete composite structure, indoor large atrium, conversion layer preferably, make up traditional full hall scaffold support system, as it is large, high, less economical to foundation bearing capacity requirement to set up long in time limit, component and fitting use amount, as scaffolding height 30m and above, even the shortcoming such as can not use, there is the advantages such as easy and simple to handle, quick construction, saving place.
2. economic benefit
Because of Bailey beam simple in structure, convenient transportation, set up quick, carrying capacity is large, interchangeability is good, adaptable feature, shortcoming long in time limit without setting up of traditional full hall scaffold support system, component and fitting use amount is large, and only bear circulation material lease and a small amount of labour cost, therefore can the reduction of erection time and greatly reduce costs.
Claims (8)
1. a Bailey beam pendent form support system, is characterized in that: the vertical lateral stressed truss (2) that comprises individual layer or multilayer Bailey beam (1) composition; On the lower chord (4) of horizontal Bailey beam (3), be provided with fining twisted steel suspension rod (5), described suspension rod hangs two-way i iron bearing platform (7) through layer of concrete structure bed die (6); Described platform (7) top is provided with steel pipe scaffold form bracing system (8), forms pendent form support system.
2. Bailey beam pendent form support system according to claim 1, it is characterized in that: described horizontal Bailey beam (3) interval vertical is arranged on longitudinal Bailey beam (9), described longitudinal Bailey beam (9) is bearing on frame construction or temporary supporting (10).
3. Bailey beam pendent form support system according to claim 1 and 2, is characterized in that: described layer of concrete structure bed die (6) is supported in described bearing platform (7) top.
4. according to the Bailey beam pendent form support system of claim 1, it is characterized in that: comprise built-in fitting (11), described built-in fitting (11) adopts i iron, and upper end exceeds floor face, and bottom anchors into below frame construction (13); Described built-in fitting top welding steel, as longitudinal Bailey beam supporting base (12); Described Bailey beam and supporting base are bolted or weld.
5. according to the Bailey beam pendent form support system of claim 1, it is characterized in that: is describedly connected with bolt by pin to Bailey beam spelling, lifting in length and breadth, smooth and easy identical.
6. according to the Bailey beam pendent form support system of claim 1, it is characterized in that: at the upper screw-thread steel suspension rod (5) of installing of lower chord (4) of described horizontal Bailey beam, described suspension rod lower end hangs i iron, forms two-way i iron bearing platform (7).
7. according to the Bailey beam pendent form support system of claim 1, it is characterized in that: described Bailey beam adopts steel pipe temporary fixed.
8. according to the Bailey beam pendent form support system of claim 1, it is characterized in that: every two groups of Bailey beams adopt horizontal brace and perpendicular support to be linked to be entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391996.9U CN203947771U (en) | 2014-07-16 | 2014-07-16 | A kind of Bailey beam pendent form support system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420391996.9U CN203947771U (en) | 2014-07-16 | 2014-07-16 | A kind of Bailey beam pendent form support system |
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| CN203947771U true CN203947771U (en) | 2014-11-19 |
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| CN201420391996.9U Expired - Fee Related CN203947771U (en) | 2014-07-16 | 2014-07-16 | A kind of Bailey beam pendent form support system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141383A (en) * | 2014-07-16 | 2014-11-12 | 北京万兴建筑集团有限公司 | Bailey beam suspension formwork supporting system and construction method thereof |
| CN105822830A (en) * | 2016-03-31 | 2016-08-03 | 中国水利水电第十四工程局有限公司 | In-situ suspension protection construction method of high-pressure gas pipe longitudinally spanning over foundation pit |
| CN107503285A (en) * | 2017-07-21 | 2017-12-22 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam self-propelled adjustable lifting mould equipment |
| CN107829368A (en) * | 2017-07-21 | 2018-03-23 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam hangs mould equipment with self-propelled |
| CN108373115A (en) * | 2018-04-11 | 2018-08-07 | 贵州新联爆破工程集团有限公司 | A kind of device of construction tower crane difference pedestal conversion |
| CN108643572A (en) * | 2018-05-31 | 2018-10-12 | 山东省建设建工（集团）有限责任公司 | Concrete crossbeam support, shellfish thunder platform construction and steel strand wires combined installation method |
| CN109610834A (en) * | 2019-02-02 | 2019-04-12 | 南通职业大学 | The high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure |
| CN112160254A (en) * | 2020-11-02 | 2021-01-01 | 中建八局第二建设有限公司 | Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support |
| CN115559520A (en) * | 2022-10-18 | 2023-01-03 | 中国建筑第四工程局有限公司 | Construction method for oversized-span high-altitude cast-in-situ corridor supporting structure |
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2014
- 2014-07-16 CN CN201420391996.9U patent/CN203947771U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141383A (en) * | 2014-07-16 | 2014-11-12 | 北京万兴建筑集团有限公司 | Bailey beam suspension formwork supporting system and construction method thereof |
| CN105822830A (en) * | 2016-03-31 | 2016-08-03 | 中国水利水电第十四工程局有限公司 | In-situ suspension protection construction method of high-pressure gas pipe longitudinally spanning over foundation pit |
| CN107503285A (en) * | 2017-07-21 | 2017-12-22 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam self-propelled adjustable lifting mould equipment |
| CN107829368A (en) * | 2017-07-21 | 2018-03-23 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam hangs mould equipment with self-propelled |
| CN107829368B (en) * | 2017-07-21 | 2019-08-27 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam hangs mould equipment with self-propelled |
| CN107503285B (en) * | 2017-07-21 | 2019-08-27 | 辽宁省路桥建设集团有限公司 | Cast-in-place across navigation channel bowstring arch bridge middle cross beam self-propelled adjustable lifting mould equipment |
| CN108373115A (en) * | 2018-04-11 | 2018-08-07 | 贵州新联爆破工程集团有限公司 | A kind of device of construction tower crane difference pedestal conversion |
| CN108643572A (en) * | 2018-05-31 | 2018-10-12 | 山东省建设建工（集团）有限责任公司 | Concrete crossbeam support, shellfish thunder platform construction and steel strand wires combined installation method |
| CN108643572B (en) * | 2018-05-31 | 2023-09-22 | 山东省建设建工（集团）有限责任公司 | Combined installation method of concrete girder support, bailey platform construction and steel strand |
| CN109610834A (en) * | 2019-02-02 | 2019-04-12 | 南通职业大学 | The high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure |
| CN112160254A (en) * | 2020-11-02 | 2021-01-01 | 中建八局第二建设有限公司 | Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support |
| CN115559520A (en) * | 2022-10-18 | 2023-01-03 | 中国建筑第四工程局有限公司 | Construction method for oversized-span high-altitude cast-in-situ corridor supporting structure |
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