CN208380095U - Concrete crossbeam support, shellfish thunder platform construction and steel strand wires composite structure - Google Patents

Abstract

The concrete crossbeam support of the utility model, shellfish thunder platform construction and steel strand wires composite structure, it is characterised in that: the setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeams accordingly at 13 layers and 24 layers on the ground of main building；Bailey beam one end is fixedly mounted on Vierendeel girder, and one end is fixedly mounted on the bracket of elevator side wall setting or both ends are installed on shear wall or the bracket of frame column side；Vierendeel girder is fixed on frame column.The utility model has the beneficial effects that this Bailey beam formula form bracing system, sets up steel pipe supporting system without in multiple floors, greatly reduces workload, be effectively guaranteed construction speed.Load is transferred directly to the higher vertical structure of bearing capacity by support system, relative to traditional steel pipe supporting system, avoids and adversely affects to weak components such as beam slabs.13 layers or more of support construction, which not will receive 13 layers of support construction below, to be influenced.

Description

Concrete crossbeam support, shellfish thunder platform construction and steel strand wires composite structure

Technical field

The present invention relates to building constructions technical field, specially a kind of concrete crossbeam support, shellfish thunder platform construction and steel strand wires Combined installation method.

Background technique

In the floor on the top of the hollow structure system for the high-altitude long-span of constructing, need from basic (ground or underground Ceiling plate) start to build full hall scaffold from the bottom up, then the template of floor is laid on scaffold, then placed in template Floor bar cage, is finally poured floorslab concrete.Firstly, since full hall scaffold will be built from the bottom up since basis, lead Cause the height of scaffold too high, generally more than 20 meters, and the steel pipe of scaffold is intensive, needs to expend in this way, building scaffold A large amount of steel pipe and fastener, material and transportation cost are high；Secondly, all steel pipes, fastener all need manually to overlap or tear open It removes, in this way, building or removing time-consuming and laborious, human cost is high, long in time limit；Again, since the whole height of scaffold is excessively high, The scaffold of eminence is influenced by the scaffold of lower.

Summary of the invention

That in order to compensate for the shortcomings of the prior art, the present invention provides a kind of structures is simple, easy to use, can replace foot hand Frame concrete crossbeam support, shellfish thunder platform construction and steel strand wires combined installation method.

The present invention is achieved through the following technical solutions:

A kind of support of concrete crossbeam, shellfish thunder platform construction and steel strand wires composite structure, it is characterised in that:

Concrete crossbeam branch is arranged in 12 layers and 23 layers of position accordingly at 13 layers and 24 layers on the ground of main building in the setting of shellfish thunder platform Support；Bailey beam one end is fixedly mounted on Vierendeel girder, and one end is fixedly mounted on the bracket of elevator side wall setting or both ends are equal It is mounted on shear wall or the bracket of frame column side；Vierendeel girder is fixed on frame column.

Shellfish thunder platform is to be arranged side by side to be fixed together by the large-scale Bailey truss of several groups left and right directions to constitute, Mei Gebei Thunder truss is fixed together by least two parallel Bailey beams and is constituted, and the both ends of Bailey truss are using small-sized beret slice as end Adjacent Bailey beam is fixed together by portion's support fixing piece, and the end of Bailey truss uses steel I-beam by adjacent Bailey truss The link together end of perhaps Bailey truss is directly anchored on concrete crossbeam or the end of Bailey truss passes through bracket group Weldment and built-in fitting are fixed on elevator shear wall or column, and Bailey beam top and bottom are fixed with reinforcement chord member.

Be connected with inclined steel strand wires between Vierendeel girder and Bailey truss, the built-in fitting of the built-in fitting of concrete crossbeam and column it Between be connected with inclined steel pipe diagonal brace；Steel I-beam is fixed on the built-in fitting of concrete crossbeam by bracing members part；Column passes through pre- Embedded part connecting rod-lattice column.

The invention has the advantages that

This Bailey beam formula form bracing system, operating method is easy, and construction efficiency is high, can greatly reduce workload, and Quick construction；In multiple floors need not set up steel pipe supporting system, greatly reduce workload, be effectively guaranteed construct into Degree.

Load is transferred directly to the higher vertical structure of bearing capacity by support system, relative to traditional steel pipe support body System, avoids and adversely affects to weak components such as beam slabs.

13 layers or more of support construction, which not will receive 13 layers of support construction below, to be influenced.

Detailed description of the invention

Attached drawing is structural schematic diagram of the invention.

Fig. 1 is 13 layers of shellfish thunder platform construction plan view, and Fig. 2 is 24 layers of shellfish thunder platform construction plan view, wherein 5.- The column number of the building ⑩Wei body support column,For the row number of building body support column.1 building body frame, 2 shellfish thunder platforms.

Fig. 3 is that 13 layers of Bailey beam land regions divide plan view, and Fig. 4 is that 24 layers of Bailey beam land regions division are flat Face figure, shellfish thunder platform are arranged side by side by the large-scale Bailey truss of several left and right directions, end be fixed on steel I-beam and/or It is constituted on concrete crossbeam or its end is fixed on elevator shear wall, shellfish thunder platform both ends use small-sized high shearing resistance beret slice Fixing piece is supported as end, chord member is reinforced using A type in bottom.A-F is column number, and (1)-(22) are Bailey truss number.

Fig. 5 is the 1-1 elevation of Fig. 3, and Fig. 6 is the 2-2 elevation of Fig. 3, and Fig. 7 is the A1-A1 elevation of Fig. 3, and Fig. 8 is figure 3 A-A elevation, Fig. 9 are the A2-A2 elevation of Fig. 3.

Figure 10 is Bailey beam and steel strand wires horizontal layout top view, and Figure 11 is Bailey beam steel strand wires horizontal layout vertical view Figure, Figure 12 are the E-E elevation of Figure 10.

3 built-in fittings, 4 steel strand wires, 5 Bailey truss, 6 anchor plates, 7 pvc pipes, 8 reinforcement chord members, 9 steel pipe diagonal braces, 10 concretes are big Beam, 11 bracing members parts, 12 Two bors d's oeuveres steel I-beams, 13 bracket group welding pieces, 14 pull rods-lattice column, 15 crossbeams, 16 elevators shearing Wall.

Specific embodiment

Attached drawing is a kind of specific embodiment of the invention.

Major project quantity of the invention is about are as follows:

Shellfish thunder platform: Bailey truss reinforces chord member, support frame, diamond plate and Bailey truss associated components；Platform welding ox Leg and built-in fitting.

The support of concrete crossbeam: 609 3.56 meters/root of steel pipe of φ, single layer is with 8；7.8 meters of lattice column pull rod (L180*18 angle steel)/ Root, with 4, concrete crossbeam is supported with related built-in fitting single layer.

A kind of support of concrete crossbeam, shellfish thunder platform construction and steel strand wires composite structure, the setting of shellfish thunder platform main building on the ground It 13 layers and 24 layers, is supported accordingly in 12 layers and 23 layers of position setting concrete crossbeam；Bailey beam one end is fixedly mounted on Vierendeel girder, One end is fixedly mounted on the bracket of elevator side wall setting or both ends are installed in the bracket of shear wall or frame column side On；Vierendeel girder is fixed on frame column.

Shellfish thunder platform is to be arranged side by side to be fixed together by the large-scale Bailey truss of several groups left and right directions to constitute, Mei Gebei Thunder truss is fixed together by least two parallel Bailey beams and is constituted, and the both ends of Bailey truss are using small-sized beret slice as end Adjacent Bailey beam is fixed together by portion's support fixing piece, and the end of Bailey truss uses steel I-beam by adjacent Bailey truss The link together end of perhaps Bailey truss is directly anchored on concrete crossbeam or the end of Bailey truss passes through bracket group Weldment and built-in fitting are fixed on elevator shear wall or column, and Bailey beam top and bottom are fixed with reinforcement chord member.

Be connected with inclined steel strand wires between Vierendeel girder and Bailey truss, the built-in fitting of the built-in fitting of concrete crossbeam and column it Between be connected with inclined steel pipe diagonal brace；Steel I-beam is fixed on the built-in fitting of concrete crossbeam by bracing members part；Column passes through pre- Embedded part connecting rod-lattice column.

The support of concrete crossbeam, shellfish thunder platform construction and steel strand wires installation method of the invention

1, concrete crossbeam Construction of Supporting scheme

The setting of this engineering shellfish thunder platform is big in 12 layers and 23 layers of position setting concrete accordingly at 13 layers and 24 layers on the ground of main building Beam support；200 type Bailey beams are mounted on the Vierendeel girder of two sides；On Vierendeel girder, one end is mounted on electricity for 321 type Bailey beam one end On the bracket of stair shaft side wall setting or both ends are installed on shear wall or the bracket of frame column side.It is specific as follows:

1.1 shellfish thunder platform crossbeam supporting embedded parts arrangement

In 6. × F axis frame column north side, 6. × G axis frame column south and north flanks, 6. × H axis frame column southern side, 9. × E axis frame Built-in fitting is arranged in trestle north side, 9. × F axis frame column south and north flanks, 9. × axis frame column southern side G, in 6. × F~H axis, 9. × E The Vierendeel girder bottom of~G is also provided with built-in fitting, draws for welding 609 steel pipe support of φ (t=16mm steel pipe Q235B) and lattice column Bar (L180*18 angle steel), Specific construction drawing are detailed in shellfish thunder platform and crossbeam supported design overall pattern PT-01~PT-07, PT- 10~PT-13.

1.2 column installation of embedded parts

After the completion of the column of no steel column indulges muscle and stirrup binding, built-in fitting is put into, and by column built-in fitting and vertical muscle Together, built-in fitting reinforcing bar uses straight anchor mode for binding；After the completion of thering is the column of steel column to indulge muscle and stirrup binding, by built-in fitting It is put into, built-in fitting reinforcing bar uses bent anchor mode, and built-in fitting reinforcing bar is held together with main bar upright column.

1.3 concrete crossbeam bottom installation of embedded parts

Crossbeam bottom built-in fitting is lifted into 6. × F~H axis, 9. × E~G frame with the both ends of tower crane lifting built-in fitting The specified elevation location of beam, bottom scaffold support built-in fitting steel plate, guarantees the absolute altitude of built-in fitting and the flatness of steel plate.? 6. after × F~H axis, 9. × E~G Vierendeel girder bottom installation of embedded parts, first installation frame beam stirrup, finally from frame column Side manually wear beam Reinforcement (have the position of steel column, in advance from processing factory make aperture and reinforcement processing).

1.4 ground 13 layers, 24 layers of elevator, frame column installation of embedded parts

It, need to be in elevator and frame segment trestle because Bailey beam lower part is without support when Bailey beam is installed at non-framework beam position Side shifts to an earlier date placing embedded parts and (concealed beam is arranged in the shear wall of built-in fitting position, concealed beam top is flushed with embedded part top, concealed beam section Having a size of 300 × 800, muscle each 4 HRB500E22 reinforcing bars up and down are indulged, stirrup is HRB400100@200(2), reinforcing bar anchors into two sides Edge member), after the completion of this layer of concrete placings, bracket is welded in built-in fitting side, supports Bailey beam for the later period.Built-in fitting is such as Shown in the following figure:

The support of 1.5 welded still pipes and lattice column

Reach welded still pipe support and lattice column after intensity requirement after concrete placings, guarantee that weld strength reaches drawing requirement, Technical difficulty of welding in the overhead position is big, carries out technology communication and welding pre-treatment.

The specific requirement of 1.6 concrete crossbeam Construction of Supporting is as follows:

1. manual welding, with E50 type welding rod

2. steel pipe and built-in fitting welding periphery welding, fillet weld is not less than 8mm, while welding in steel pipe and built-in fitting contact position Gusset is connect, gusset and built-in fitting connection length are not less than 100mm, and 8mm weld seam two-sided welding, the every end of steel pipe is welded with 16 pieces of M gussets It connects；

3. lattice column and built-in fitting carry out two-sided welding (welding inside and outside angle steel), while contacting in lattice column with built-in fitting Position weld gusset, gusset and built-in fitting connection length are not less than 100mm, 8mm weld seam two-sided welding, and the every end of lattice column is with 8 The welding of block N gusset；Bracing members (there are 16 holes φ 22mm at the every end of flange) and concrete beam are connected with expansion bolt；Bracing members with The welding of Two bors d's oeuveres I-steel；It is welded and is connected with section between I-steel and Bailey beam, while be welded on Two bors d's oeuveres I-steel with steel plate clamp；Electricity The Bailey beam and bottom steel plate at stair shaft end are using welded connecting；1.2 meters * 1.2 meters of the intensive place of column (steel column) built-in fitting is adopted Use self-compacting concrete.

2, shellfish thunder platform construction scheme

Concrete is arranged in 12 layers and 23 layers of position accordingly at 13 layers and 24 layers on the ground of main building in the shellfish thunder platform setting of this engineering Crossbeam support, specific as follows:

2.1 pre-assembled, 200 model Bailey beam lifts splicing, after concrete crossbeam strength criterion reaches, by 200 types after assembling Number Bailey beam is put at the position that concrete crossbeam measures that (crossbeam will pad rubber pad and steel plate at corresponding position, prevent damage concrete Surface layer)；

(monitoring of bracket weld strength is qualified and provides corresponding for the bracket of 2.2 welding elevators and column correlation elevation location Monitoring report), and be laid with smooth steel plate (steel plate and bracket section weld)；

2.3 carry out preassembling in face of 321 Bailey beams on ground, in place with tower crane lifting, in the Bailey beam and tiling of steel corbel Steel plate carry out section weldering connection；

2.4 completely spread checkered steel plate at the top for 321 Bailey beams set up；

It is integral with yoke plate connection between every group of 2.5 Bailey beams, guarantee whole stability；

3, steel strand wires mount scheme

For solve across the Bailey beam amount of deflection problems of too of 30m on the ground 15 layers and 26 floor faces 6. × E~F axis and 9. × F~G Steel strand wires are arranged in axis Vierendeel girder, are arranged 17 on per pass beam.

The built-in fitting of pre-buried steel strand wires at the specified absolute altitude of the corresponding crossbeam of 3.1 second layer more than platform and position With pvc pipe (45 ° of pvc pipe angle with horizontal plane), concrete placings after the completion twist the designated position installation steel of 200 model Bailey beams Line；

3.2 steel strand wires install after according to require carry out steel strand wires tensioning；

3.3 built-in fittings and steel strand wires layout drawing be detailed in shellfish thunder platform and crossbeam supported design overall pattern PT-08~PT-09, PT-19~PT-23；

The specific requirement of 3.4 steel strand wires construction is as follows:

1. manual welding, with E50 type welding rod

2. the throat of fillet weld is not less than 8mm；

3. steel plate selects Q235 steel plate, built-in fitting reinforcing bar selects HRB400 model；

4. steel strand wires are used in the position of Bailey beam and the position of built-in fitting and are detailed in N-N and M-M;Shellfish thunder platform and crossbeam branch Support design overall pattern PT-08~PT-09, PT-19~PT-23；

5. the gusseted that L180*18 angle steel is made into and built-in fitting use welding form；

6. effectively connecting between angle steel and Bailey beam, guarantee that angle steel and Bailey beam have biggish contact area；

7. selecting 1 × 7-15.20-1860-GB/T5224-2014 of prestress wire type steel strand wires；Every steel strand wires Permission payload values be≤135KN.

4, production and the construction point such as the support of concrete crossbeam, shellfish thunder platform construction and steel strand wires

4.1 built-in fittings classification processing, production

1. concrete crossbeam supporting embedded part: steel column built-in fitting, non-steel column built-in fitting and concrete crossbeam bottom built-in fitting, in advance Embedded part specifications and models are detailed in attachment PT-11/PT-12/PT-10 (built-in fitting needs preprocessing, uses after the assay was approved).

2. shellfish thunder platform built-in fitting: elevator built-in fitting (8.8 meters of long elevators, 2.9 meters of long elevators) and column are pre-buried Part specifications and models are detailed in attachment PT-14/PT-16/PT-15(built-in fitting and need preprocessing, use after the assay was approved).

3. steel strand wires built-in fitting: the 15th layer and the 26th floor face 6. × E~F axis and 9. × F~G Vierendeel girder at the top of it is pre-buried Part, built-in fitting specifications and models are detailed in shellfish thunder platform and crossbeam supported design overall pattern PT-19, and built-in fitting needs preprocessing, examine It is used after qualification.

4.2 steel pipes support processing, production

1. steel pipe support uses outer φ 609mm wall thickness 16mm,

The processing of 4.3 lattice columns, production

Lattice column main material uses L180*18 equal leg angle, and batten plate is welded using 12*300*400mm@450mm steel plate, Lattice column specifications and models are detailed in attachment 6(preprocessing main body, and end batten plate site welding uses after the assay was approved).

The processing of 4.4 steel strand wires backing plates, production

1. steel strand wires backing plate is made of L180*18 equal leg angle length 206mm, four pieces of triangle muscle of angle steel interior welds Plate, in the one side outside weldings of angle steel punching 16mm thick steel plate with holes.

2. steel strand wires backing plate specifications and models are detailed in attachment PT-17(preprocessing, use after the assay was approved).

4.7 installation of embedded parts

1. built-in fitting construction point explanation

After the completion of built-in fitting processing and fabricating, measurement and positioning installation is constructed, just according to reinforcement construction situation iterative method in concrete In built-in fitting anchored end and steel column fashioned iron gusset firm welding, (or built-in fitting anchored end carries out mechanical anchor, enhances built-in fitting Tensile capacity).

2. the main construction procedure of concrete crossbeam support post built-in fitting and main points

1) column center line and built-in fitting steel plate bottom end absolute altitude are made using measuring instrument, be accurately positioned.

2) concrete crossbeam support post built-in fitting is hung, after built-in fitting end carries out mechanical anchor reinforcement, measures built-in fitting Centre deviation and gradient, and be adjusted, built-in fitting is fixed after meeting the requirements in corresponding position.

3. the main construction procedure of concrete crossbeam bottom built-in fitting and main points

When hanging concrete crossbeam bottom built-in fitting, lifting will guarantee that built-in fitting steel plate deforms not in lifting while guaranteeing pre- The verticality of embedded part reinforcing bar and steel plate measures built-in fitting flatness and gradient, and is adjusted, and fixes after meeting the requirements pre-buried Part is in corresponding position.

4. the main construction procedure of elevator built-in fitting and main points

1) built-in fitting elevation line is made using measuring instrument, and crossed (bracing wire) at the scene, measure built-in fitting centre deviation And gradient, and be adjusted, built-in fitting is fixed after meeting the requirements in corresponding position.

2) according to the actual conditions of this engineering, elevator built-in fitting is using reinforcing bar both ends perforation plug welding steel plate design, welding Installation after integral, lower layer's wall reinforcing bar joint bar height will be higher by built-in fitting, first will built-in fitting within the walls after the completion of lower layer's concrete placings It is put into corresponding position to fix, then horizontal bar within the walls and within the walls concealed beam is installed, vertical joint bar and horizontal bar within the walls are finally installed again.

5. the Bailey beam main construction procedure of column built-in fitting and main points

1) built-in fitting elevation line is made using measuring instrument, and crossed (bracing wire) at the scene, measure built-in fitting centre deviation And gradient, and be adjusted, built-in fitting is fixed after meeting the requirements in corresponding position.

2) after the completion of the column without steel column indulges muscle and stirrup binding, built-in fitting is put into, and by column built-in fitting and is indulged Muscle is bound together, and built-in fitting reinforcing bar uses straight anchor mode；It, will be pre-buried after the completion of thering is the column of steel column to indulge muscle and stirrup binding Part is put into, and built-in fitting reinforcing bar uses bent anchor mode, and built-in fitting reinforcing bar is held together with main bar upright column.

6. the main construction procedure of steel strand wires built-in fitting and main points

1) the built-in fitting position line is made using measuring instrument, and crossed (bracing wire) at the scene, guarantee built-in fitting centre bore (steel Twisted wire hole) it is corresponding with 200 centers type Bei Lei, after being adjusted in place, fixed built-in fitting is in corresponding position.

2) (pvc pipe is at 45 ° with horizontal plane for pre-buried pvc pipe after pvc pipe is passed through built-in fitting hole while built-in fitting is pre-buried Angle), insertion reinforcing bar prevents from fractureing during concrete placings in pvc pipe.

3) welding steel strand wires backing plate guarantees that backing plate hole is corresponding with built-in fitting hole at the top of steel strand wires built-in fitting, uses in welding process Reinforcing bar does the connection positioning of Kong Yukong, prevents welding metapore from not corresponding to.

7. bracket construction point

1) bracket preprocessing carries out aperture (being convenient for on-site hoisting) before factory completes, and dispatches from the factory, to the quasi- slope of welding ends mark Mouthful.

2) steel corbel makes bracket absolute altitude, in-site measurement and confirmation of crossing before being welded on built-in fitting.

3) spacing of steel corbel is marked out on built-in fitting, scribing line is clear.

4) steel corbel point is welded in the corresponding position of graticule, measures its gradient and flatness and spacing to each bracket Measurement, weld after the assay was approved, welding process using sequence weld, bracket caused by preventing in welding process inclination.

5) bracket Weld quality level is second level, should meet existing national standards " structural steelwork construction quality accident rule Model " (GB50205-2001) regulation, the throat of fillet weld be not less than 8mm.After the completion of bracket welding, the matter of detailed inspection welding Amount, the carry out repair welding to welding requirements is not met finally provide detailed qualified examining report to the vertical weld seam of bracket.

6) prefabricated steel plate, steel plate and bracket contact position is laid with after bracket welding detection is qualified, at the top of bracket to weld using section Connection.

7) docking uses section weldering connection to guarantee the smooth connection of steel plate between the steel plate spread.

8) the uneven processing of bracket top plan: the sliding of pinpoint welding procedure light plate, welding process light plate thermal deformation, bracket add Bracket deformation etc. is caused during work, after finding out reason, bracket process substitutes machine cuts using Numerical control cutting, and spot welding is adopted With positioning double-crossed, operated by two people, welding procedure adjustment rationalizes.

9) the unqualified processing of the vertical weld strength of bracket: welding groove is processed in place, using welding times repair welding is increased, is The integral strength for reinforcing bracket welding welds lateral connecting plate between bracket and is further reduced the inclination of bracket to entirety It influences.

4.8 concrete crossbeam Construction of Supporting general condensed summaries

1. steel pipe support welding

1) steel pipe support both ends are cut 45 ° of planes and are carried out before factory completes, and dispatches from the factory welding hanging ring (being convenient for on-site hoisting), existing Mark quasi- groove in both ends is supportted field to steel pipe.

2) steel pipe support is lifted at the 12nd layer and 23 floors before construction and stores, and column built-in fitting and concrete crossbeam bottom are pre- After concrete strength at embedded part reaches requirement, the position of center line of steel pipe support, in-site measurement and confirmation of crossing are determined.

3) steel pipe jack and safety rope are adjusted to graticule position, after spot welding positioning, weld immediately, weld strength, which reaches, to be wanted Safety rope is removed after asking, and carries out local strengthening in the good gusset of the both ends welding processing of steel pipe support.

2. lattice column welds

1) lattice column pull rod main body is after the completion of factory process, the live quasi- groove of diagonal steel mark.

2) lattice column is lifted at the 12nd layer and 23 floors before construction and stores, and column built-in fitting and concrete crossbeam bottom are pre- After concrete strength at embedded part reaches requirement, the position of center line of lattice column, in-site measurement and confirmation of crossing are determined；

3) graticule position is adjusted to after spot welding positioning with jack and safety rope to weld immediately, angle steel connects with built-in fitting steel plate Synapsis needs all welding (welding with built-in fitting steel plate inside and outside angle steel), by batten plate and built-in fitting steel plate and angle after angle steel welding Steel welds together, and weld strength, which reaches, removes safety rope after requirement, and the good gusset of the both ends welding processing of lattice column into Row local strengthening.

4.9 shellfish thunder platform construction general condensed summaries

1. 200 type shellfish thunder stage+modules

1) beret slice riding position is determined before installation, is crossed on crossbeam according to drawing size, is determined every group of beret slice Position.

2) beret slice assembly is assembled using segmented.For convenience of construction, every Pin beret slice points 3 sections be hung to set up at platform into Marketing link.

3) it is fixed after every Pin is installed with flower stand, is assembled into one or four or one or five according to drawing.

4) after 200 model shellfish thunder platforms are all set up, reinforcement chord member is installed.

5) connected between every group (one or four or five) shellfish thunder platform with yoke plate (channel steel or angle steel or 12mm thickness steel plate) It connects, two positions is at least connected in every group of beret slice length, guarantee the lateral stability of every group of Bailey beam.

6) secondary reinforcing is carried out to all chord bolts, flower stand bolt after being installed to fasten.

2. 321 type shellfish thunder stage+modules

1) beret slice installation site is determined, in corresponding position marking.

2) it is installed on level land and reinforces spinner handle under beret slice, every Pin beret slice is divided to two sections of installations, and first first segment is placed on Designated position and fixation, then other end docking is hung with tower crane.

3) it is fixed after every Pin is installed with flower stand, is assembled into a union II or one or three according to drawing.

4) after 321 model shellfish thunder platforms are all set up, reinforcement chord member is installed.

5) connected between every group (union II or three) shellfish thunder platform with yoke plate (channel steel or angle steel or 12mm thickness steel plate) It connects, two positions is at least connected in every group of beret slice length, guarantee the lateral stability of every group of Bailey beam.

6) secondary reinforcing is carried out to all chord bolts, flower stand bolt after being installed to fasten.

7) finally it is laid with diamond plate.

3. the problem and its processing in 200 model shellfish thunder platforms and 321 shellfish thunder platform constructions

Beret slice position conflicts with scaffold position.Remove scaffold cross bar, appropriate adjustment beret slice installation site.

4.10 steel strand wires construction point explanations

1. steel strand wires backing plate is fixed at the top of crossbeam

1) built-in fitting is installed before concreting.

2) pre-buried pvc pipe, finds on big beam forms the installation site aperture of corresponding pvc pipe by measuring, and with bundle Silk fixing PVC pipe.

3) to prevent pvc pipe from damaging in concreting process, the reinforcing bar of diameter 18 and reinforcing are inserted into centre.

4) after the completion of concreting, steel strand wires backing plate is welded.

5) corresponding position is measured on beret slice weld steel strand wires backing plate.

2. steel strand wires are installed at Bailey beam

1) fixing end anchor plate, anchorage and steel strand wires are installed at the steel strand wires backing plate at Bailey beam.

2) by steel strand wires by crossbeam preformed hole through at built-in fitting anchor plate, and anchorage is installed.

3) after steel strand wires are installed, tensioning is carried out with jack, tensioning oil meter selects shockproof,

Pipeline, anchorage, jack three are concentric, and cable tensios control is based on reading, supplemented by stretch value check.

Claims (3)

1. the composite structure of a kind of concrete crossbeam support, shellfish thunder platform construction and steel strand wires, it is characterised in that:

The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam accordingly at 13 layers and 24 layers on the ground of main building；Shellfish The one end Lei Liang is fixedly mounted on Vierendeel girder, and one end is fixedly mounted on the bracket of elevator side wall setting or both ends are respectively mounted On the bracket of shear wall or frame column side；Vierendeel girder is fixed on frame column；

Shellfish thunder platform is to be arranged side by side to be fixed together by the large-scale Bailey truss of several groups left and right directions to constitute, each purlin Bei Lei Frame is fixed together by least two parallel Bailey beams and is constituted, and the both ends of Bailey truss are using small-sized beret slice as end branch Adjacent Bailey beam is fixed together by support fixing piece.

2. the composite structure of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature exist In: adjacent Bailey truss is linked together using steel I-beam for the end of Bailey truss or the end of Bailey truss is straight Connect be fixed on concrete crossbeam or the end of Bailey truss by bracket group welding piece and built-in fitting be fixed on elevator shear wall or On column, Bailey beam top and bottom are fixed with reinforcement chord member.

3. the composite structure of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature exist In: it is connected with inclined steel strand wires between Vierendeel girder and Bailey truss, connects between the built-in fitting of concrete crossbeam and the built-in fitting of column It is connected to inclined steel pipe diagonal brace；Steel I-beam is fixed on the built-in fitting of concrete crossbeam by bracing members part；Column passes through built-in fitting Connecting rod-lattice column.