CN108643572A - Concrete crossbeam support, shellfish thunder platform construction and steel strand wires combined installation method - Google Patents
Concrete crossbeam support, shellfish thunder platform construction and steel strand wires combined installation method Download PDFInfo
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- CN108643572A CN108643572A CN201810548368.XA CN201810548368A CN108643572A CN 108643572 A CN108643572 A CN 108643572A CN 201810548368 A CN201810548368 A CN 201810548368A CN 108643572 A CN108643572 A CN 108643572A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
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Abstract
The concrete crossbeam support of the present invention, the combined installation method of shellfish thunder platform construction and steel strand wires, it is characterised in that：Include the following steps：（1）, concrete crossbeam support：11 shellfish thunder platforms, concrete crossbeam supporting embedded part arrangement；12 column installation of embedded parts；13 concrete crossbeam bottom installation of embedded parts；14 13 layers of grounds, 24 layers of elevator, frame column installation of embedded parts；15 welded still pipes support and lattice column.The invention has the advantages 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 is adversely affected to weak components such as beam slabs.13 layers or more of support construction will not be influenced by 13 layers of support construction below.
Description
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 technology
In the floor on the top of the hollow structure system for the high-altitude long-span of constructing, need from basis（Ground or underground
Ceiling plate）Start to build full hall scaffold from the bottom up, then be laid with the template of floor on scaffold, is then placed in template
Floor bar cage, finally pours into a mould floorslab concrete.Firstly, since full hall scaffold will from the bottom up be built 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, high since the whole height of scaffold is excessively high
The scaffold at place is influenced by the scaffold of lower.
Invention content
In order to compensate for the shortcomings of the prior art, the present invention provides it is a kind of it is simple in structure, easy to use, foot hand can be replaced
The concrete crossbeam support of frame, the combined installation method of shellfish thunder platform construction and steel strand wires.
The present invention is achieved through the following technical solutions：
The concrete crossbeam support of the present invention, the combined installation method of shellfish thunder platform construction and steel strand wires, it is characterised in that：Including following
Step：
（1）, concrete crossbeam support
The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam accordingly in 13 layers and 24 layers on the ground of main building；200
Type Bailey beam is mounted on the Vierendeel girder of both sides；On Vierendeel girder, one end is set mounted on elevator side wall for 321 type Bailey beam one end
On the bracket set or both ends are installed on shear wall or the bracket of frame column side；Including step in detail below：
1-1 shellfish thunders platform, concrete crossbeam supporting embedded part arrangement
Built-in fitting is fixedly installed on frame column or Vierendeel girder, for welded still pipe support and lattice column pull rod；
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 column built-in fitting and vertical muscle are bound
Together, built-in fitting reinforcing bar uses straight anchor mode；After the completion of having the column of steel column to indulge muscle and stirrup binding, built-in fitting is put
Enter, built-in fitting reinforcing bar uses bent anchor mode, built-in fitting reinforcing bar to be held together with main bar upright column；
1-3 concrete crossbeams bottom installation of embedded parts
Crossbeam bottom built-in fitting is lifted into the specified elevation location of Vierendeel girder, bottom foot with the both ends of tower crane lifting built-in fitting
Hand cradle supporting embedded part steel plate, ensures the absolute altitude of built-in fitting and the flatness of steel plate；In Vierendeel girder bottom, installation of embedded parts finishes
Afterwards, first installation frame beam stirrup, finally manually wears the Reinforcement of beam from the side of frame column；
13 layers on the ground of 1-4,24 layers of elevator, frame column installation of embedded parts
It, need to be in elevator and frame segment trestle side because Bailey beam lower part is without support when Bailey beam is installed at non-framework beam position
Placing embedded parts in advance；Concealed beam is set in the shear wall of built-in fitting position, and concealed beam top is flushed with embedded part top, indulges muscle up and down each 4
Root reinforcing bar, reinforcing bar anchor into both sides of the edge component；After the completion of this layer of concrete placings, bracket is welded in built-in fitting side, is used for the later stage
Support Bailey beam；
1-5 welded still pipes support and lattice column
Reach welded still pipe support and lattice column after intensity requirement after concrete placings, ensures that weld strength reaches drawing requirement；
（2）, shellfish thunder platform construction
The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam, tool accordingly in 13 layers and 24 layers on the ground of main building
Body is as follows：
200 model Bailey beam of 2-1 pre-assembleds lifts splicing, after concrete crossbeam strength criterion reaches, by 200 model shellfishes after assembling
Lei Liang is put at the position that concrete crossbeam measures；Crossbeam will pad rubber pad and steel plate at corresponding position, prevent damage concrete surface layer；
2-2 welds the bracket of elevator and column correlation elevation location, and is laid with smooth steel plate, and steel plate is welded with bracket section；
2-3 carries out preassembling on ground in face of 321 Bailey beams, in place with tower crane lifting, in the Bailey beam of steel corbel and the steel of tiling
Plate carries out section weldering connection；
2-4 completely spreads 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, ensure whole stability；
（3）, steel strand wires installation
To solve across the Bailey beam amount of deflection problems of too of 30m, 15 layers and 26 floor surface frames are set a roof beam in place setting steel strand wires on the ground, per pass beam
If upper setting arterial highway steel strand wires；
At the specified absolute altitude of the corresponding crossbeam of the second layers of the 3-1 more than platform and position the built-in fitting of pre-buried steel strand wires and
Pvc pipe, 45 ° of pvc pipe angle with horizontal plane, concrete placings install steel strand wires to the designated position of 200 model Bailey beams after the completion；
3-2 steel strand wires install after according to require carry out steel strand wires tensioning.
A kind of support of concrete crossbeam, 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 crossbeam accordingly in 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, Mei Gebei
Thunder truss is fixed together by least two parallel Bailey beams and is constituted, and the both ends of Bailey truss use 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 either 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 concrete crossbeam and the built-in fitting of column it
Between be connected with inclined steel pipe diagonal brace；Steel I-beam is fixed on by bracing members part on the built-in fitting of concrete crossbeam；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 construct
Fast；Steel pipe supporting system need not be set up in multiple floors, greatly reduce 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 support body
System, avoids and is adversely affected to weak components such as beam slabs.
13 layers or more of support construction will not be influenced by 13 layers of support construction below.
Description of the drawings
Attached drawing is the structural schematic diagram of the present 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 buildings 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, bottom is supported to reinforce chord member using A types as end.A-F numbers for column,（1）-（22）It is numbered for Bailey truss.
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 vertical view, and Figure 11 overlooks for Bailey beam steel strand wires horizontal layout
Figure, Figure 12 are the E-E elevation of Figure 10.
3 built-in fittings, 4 steel strand wires, 5 Bailey truss, 7 pvc pipes, 8 reinforce chord member, 9 steel pipe diagonal braces, 10 concrete crossbeams, 11 steel
Support element, 12 Two bors d's oeuveres steel I-beams, 13 bracket group welding pieces, 14 pull rods-lattice column, 15 crossbeams, 16 elevator shear walls.
Specific implementation mode
Attached drawing is a kind of specific embodiment of the present invention.
The present invention major project quantity be about：
Shellfish thunder platform：Bailey truss reinforces chord member, supporting rack, diamond plate and Bailey truss associated components；Platform welding bracket and
Built-in fitting.
Concrete crossbeam supports：609 3.56 meters/roots of steel pipe of φ, single layer is with 8；Lattice column pull rod（L180*18 angle steel）7.8 meters/
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 shear wall or the bracket of 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 use 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 either 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 concrete crossbeam and the built-in fitting of column it
Between be connected with inclined steel pipe diagonal brace；Steel I-beam is fixed on by bracing members part on the built-in fitting of concrete crossbeam；Column passes through pre-
Embedded part connecting rod-lattice column.
The support of concrete crossbeam, shellfish thunder platform construction and the steel strand wires installation method of the present invention
1, concrete crossbeam Construction of Supporting scheme
Concrete crossbeam branch is arranged in 12 layers and 23 layers of position accordingly in 13 layers and 24 layers on the ground of main building in the setting of this engineering shellfish thunder platform
Support；200 type Bailey beams are mounted on the Vierendeel girder of both sides；On Vierendeel girder, one end is mounted on elevator for 321 type Bailey beam one end
On the bracket of 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 are arranged
In 6. × F axis frame columns north side, 6. × G axis frame columns south and north flanks, 6. × H axis frame columns southern side, 9. × E axis frame columns
Built-in fitting is arranged in north side, 9. × F axis frame columns south and north flanks, 9. × G axis frame columns southern side, in 6. × F~H axis, 9. × E~G
Vierendeel girder bottom be also provided with built-in fitting, for welding 609 steel pipe supports of φ（T=16mm steel pipes Q235B）And lattice column pull rod
（L180*18 angle steel）, Specific construction drawing refers to 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 column built-in fitting and vertical muscle are bound
Together, built-in fitting reinforcing bar uses straight anchor mode；After the completion of having the column of steel column to indulge muscle and stirrup binding, built-in fitting is put
Enter, built-in fitting reinforcing bar uses bent anchor mode, built-in fitting reinforcing bar to be held together with main bar upright column.
1.3 concrete crossbeam bottom installation of embedded parts
The Vierendeel girder that crossbeam bottom built-in fitting is lifted into 6. × F~H axis, 9. × E~G by the both ends of built-in fitting is lifted with tower crane
Specified elevation location, bottom scaffold support built-in fitting steel plate ensure the absolute altitude of built-in fitting and the flatness of steel plate.6. ×
F~H axis, 9. × E~G Vierendeel girder bottom installation of embedded parts after, first installation frame beam stirrup, finally from the side of frame column
Dough figurine work wears the Reinforcement of beam（There is the position of steel column, makees trepanning and reinforcement processing from processing factory in advance）.
1.4 13 layers of grounds, 24 layers of elevator, frame column installation of embedded parts
It, need to be in elevator and frame segment trestle side because Bailey beam lower part is without support when Bailey beam is installed at non-framework beam position
Placing embedded parts in advance（Concealed beam is set in the shear wall of built-in fitting position, and concealed beam top is flushed with embedded part top, concealed beam sectional dimension
It is 300 × 800, indulges muscle each 4 HRB500E22 reinforcing bars up and down, stirrup is HRB400100@200（2）, reinforcing bar anchors into both sides of the edge
Component）, after the completion of this layer of concrete placings, bracket is welded in built-in fitting side, Bailey beam is supported for the later stage.Built-in fitting such as figure below
It is shown：
1.5 welded still pipes support and lattice column
Reach welded still pipe support and lattice column after intensity requirement after concrete placings, ensures that weld strength reaches drawing requirement, weld in the overhead position
Technical difficulty 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 rods
2. steel pipe is not less than 8mm with built-in fitting welding periphery welding, fillet weld, while in steel pipe and built-in fitting contact position welding bar
Plate, gusset are not less than 100mm, 8mm weld seam two-sided weldings with built-in fitting connection length, and steel pipe is often held to be welded with 16 pieces of M gussets；
3. lattice column carries out two-sided welding (being welded inside and outside angle steel) with built-in fitting, while in the position that lattice column is contacted with built-in fitting
Welding gusset is set, gusset is not less than 100mm, 8mm weld seam two-sided weldings with built-in fitting connection length, and lattice column is often held with 8 pieces of N
Gusset welds；Bracing members (flange, which is often held, 16 holes φ 22mm) are connect with concrete beam with expansion bolt；Bracing members with it is double
Spell I-steel welding；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；Elevator
The Bailey beam at well end is used with bottom steel plate and is welded to connect；1.2 meters * 1.2 meters of the intensive place of column (steel column) built-in fitting uses
Self-compacting concrete.
2, shellfish thunder platform construction scheme
Concrete crossbeam is arranged in 12 layers and 23 layers of position accordingly in 13 layers and 24 layers on the ground of main building in the shellfish thunder platform setting of this engineering
Support, it is specific as follows：
2.1 pre-assembled, 200 model Bailey beam lifts splicing, after concrete crossbeam strength criterion reaches, by 200 model shellfishes after assembling
Lei Liang is put at the position that concrete crossbeam measures（Crossbeam will pad rubber pad and steel plate at corresponding position, prevent damage concrete table
Layer）；
The bracket of 2.2 welding elevators and column correlation elevation location（The monitoring of bracket weld strength is qualified and provides corresponding prison
Observe and predict announcement）, and it is laid with smooth steel plate (steel plate and the weldering of bracket section）；
2.3 carry out preassembling on ground in face of 321 Bailey beams, in place with tower crane lifting, in the Bailey beam of steel corbel and the steel of tiling
Plate carries 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, ensure 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 axis frames
It sets a roof beam in place and steel strand wires is set, be 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
And pvc pipe（45 ° of pvc pipe angle with horizontal plane）, concrete placings are after the completion to the designated position of 200 model Bailey beams installation steel strand
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 refer to 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 rods
2. the throat of fillet weld is not less than 8mm；
3. steel plate selects Q235 steel plates, built-in fitting reinforcing bar to select HRB400 models；
4. steel strand wires are used in the position of Bailey beam and the position of built-in fitting and refer to N-N and M-M;Shellfish thunder platform and crossbeam support are set
Count overall pattern PT-08~PT-09, PT-19~PT-23；
5. the gusseted that L180*18 angle steel is made uses welding form with built-in fitting；
6. effectively being connected between angle steel and Bailey beam, ensure that angle steel and Bailey beam have larger contact area；
7. selecting prestress wire 1 × 7-15.20-1860-GB/T5224-2014 type steel strand wires；Every steel strand wires are permitted
Perhaps payload values are≤135KN.
4, making 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 makes
1. concrete crossbeam supporting embedded part：Steel column built-in fitting, non-steel column built-in fitting and concrete crossbeam bottom built-in fitting, built-in fitting
Specifications and models are shown in that (built-in fitting needs preprocessing to PT-11/PT-12/PT-10, 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）It is pre-buried with column
Part specifications and models are shown in PT-14/PT-16/PT-15（Built-in fitting needs preprocessing, uses after the assay was approved）.
3. steel strand wires built-in fitting：15th layer and the 26th floor face 6. × E~F axis and 9. × F~G Vierendeel girders at the top of it is pre-buried
Part, built-in fitting specifications and models refer to 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 makes
1. steel pipe support uses outer φ 609mm wall thickness 16mm,
The processing of 4.3 lattice columns makes
Lattice column main material uses L180*18 equal leg angles, batten plate to be welded using 12*300*400mm@450mm steel plates（Pre-add
Work main body, end batten plate site welding, uses after the assay was approved）.
The processing of 4.4 steel strand wires backing plates makes
1. steel strand wires backing plate is made of L180*18 equal leg angle length 206mm, four pieces of triangle gussets of angle steel interior welds,
In the one side outside weldings of angle steel punching 16mm steel plates with holes.
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 according to reinforcement construction situation iterative method in concrete, convenient for pre-
Embedded part anchored end and steel column shaped steel gusset firm welding（Or built-in fitting anchored end carries out mechanical anchor, enhances built-in fitting tension
Ability）.
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, is 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 ensure that built-in fitting steel plate deforms not in lifting while ensureing built-in fitting
The verticality of reinforcing bar and steel plate measures built-in fitting flatness and gradient, and is adjusted, and fixing built-in fitting after meeting the requirements exists
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 is crossed at the scene（Bracing wire）, measure built-in fitting centre deviation and incline
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 is crossed at the scene（Bracing wire）, measure built-in fitting centre deviation and incline
Gradient, and be adjusted, built-in fitting is fixed after meeting the requirements in corresponding position.
2）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 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, built-in fitting reinforcing bar to be 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 is crossed at the scene（Bracing wire）, ensure built-in fitting centre bore（Steel strand wires
Hole）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）, reinforcing bar is inserted into pvc pipe to be prevented from fractureing during concrete placings.
3）Welding steel strand wires backing plate ensures that backing plate hole is corresponding with built-in fitting hole at the top of steel strand wires built-in fitting, is used 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 is completed in factory, and trepanning is carried out before dispatching from the factory（Convenient for on-site hoisting）, to the quasi- groove of welding ends mark.
2）Steel corbel is gone forward being welded to built-in fitting, and bracket absolute altitude, in-site measurement and confirmation of crossing are made.
3）The 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, its gradient and flatness and spacing are measured to each bracket
Measurement, weld after the assay was approved, welding process is welded using sequence, and bracket is prevented caused by welding process to tilt.
5）Bracket Weld quality level is two level, should meet existing national standards《Structural steelwork construction quality accident is advised
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 finally provides detailed qualified examining report to not meeting the carry out repair welding of welding requirements to the vertical weld seam of bracket.
6）After bracket welding detection is qualified, prefabricated steel plate is laid at the top of bracket, steel plate is welded with bracket contact position using section
Connection.
7）Docking ensures the smooth connection of steel plate using section weldering connection between the steel plate of paving.
8）The uneven processing of bracket top plan：Pinpoint welding procedure light plate slides, and welding process light plate thermal deformation, bracket adds
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 supports both ends and cuts 45 ° of planes in factory's completion, and welding hanging ring is carried out before dispatching from the factory（Convenient for on-site hoisting）, live right
Steel pipe supports the quasi- groove of both ends mark.
2）Steel pipe support is lifted at the 12nd layer and 23 floor layers 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 and are welded immediately, weld strength, which reaches, to be wanted after spot welding positioning
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 floor layers 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 jack and safety rope after spot welding positioning to weld immediately, angle steel and built-in fitting steel plate contact position
Need whole welding（It is welded with built-in fitting steel plate inside and outside angle steel）, batten plate and built-in fitting steel plate and angle steel are welded after angle steel welding
It is connected together, weld strength removes safety rope, and the gusset carry out office good in the both ends welding processing of lattice column after reaching requirement
Reinforce in portion.
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 the position of every group of beret slice.
2）Beret slice assembly is assembled using segmented.For convenience of construction, be hung to per 3 sections of Pin beret slices point set up at platform into
Marketing link.
3）It is fixed with flower stand after installation is complete per Pin, one or four or one or five is assembled into according to drawing.
4）After 200 model shellfish thunder platforms are all set up, reinforcement chord member is installed.
5）Every group（One four or five）Yoke plate is used between shellfish thunder platform（Channel steel or angle steel or 12mm thickness steel plates）Connected
It connects, two positions is at least connected in every group of beret slice length, ensure the lateral stability of every group of Bailey beam.
6）Secondary reinforcing is carried out after installation is complete to all chord bolts, flower stand bolt 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 under beret slice and reinforces swing arm, two sections of installations are divided to per Pin beret slices, first first segment is placed on
Designated position and fixation, then hang other end docking with tower crane.
3）It is fixed with flower stand after installation is complete per Pin, a union II or one or three is assembled into according to drawing.
4）After 321 model shellfish thunder platforms are all set up, reinforcement chord member is installed.
5）Every group（One union II or three）Yoke plate is used between shellfish thunder platform（Channel steel or angle steel or 12mm thickness steel plates）Connected
It connects, two positions is at least connected in every group of beret slice length, ensure the lateral stability of every group of Bailey beam.
6）Secondary reinforcing is carried out after installation is complete to all chord bolts, flower stand bolt 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.Scaffold cross bar is removed, it is appropriate to adjust 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 the installation site trepanning of corresponding pvc pipe on big beam forms by measuring, bundle is used in combination
Silk fixing PVC pipe.
3）To prevent pvc pipe from being damaged 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 welds 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）Steel strand wires carry out tensioning after installation is complete, with jack, and 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 (8)
1. the combined installation method of a kind of concrete crossbeam support, shellfish thunder platform construction and steel strand wires, it is characterised in that：Including following
Step：
（1）, concrete crossbeam support
The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam accordingly in 13 layers and 24 layers on the ground of main building；200
Type Bailey beam is mounted on the Vierendeel girder of both sides；On Vierendeel girder, one end is set mounted on elevator side wall for 321 type Bailey beam one end
On the bracket set or both ends are installed on shear wall or the bracket of frame column side；Including step in detail below：
1-1 shellfish thunders platform, concrete crossbeam supporting embedded part arrangement
Built-in fitting is fixedly installed on frame column or Vierendeel girder, for welded still pipe support and lattice column pull rod；
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 column built-in fitting and vertical muscle are bound
Together, built-in fitting reinforcing bar uses straight anchor mode；After the completion of having the column of steel column to indulge muscle and stirrup binding, built-in fitting is put
Enter, built-in fitting reinforcing bar uses bent anchor mode, built-in fitting reinforcing bar to be held together with main bar upright column；
1-3 concrete crossbeams bottom installation of embedded parts
Crossbeam bottom built-in fitting is lifted into the specified elevation location of Vierendeel girder, bottom foot with the both ends of tower crane lifting built-in fitting
Hand cradle supporting embedded part steel plate, ensures the absolute altitude of built-in fitting and the flatness of steel plate；In Vierendeel girder bottom, installation of embedded parts finishes
Afterwards, first installation frame beam stirrup, finally manually wears the Reinforcement of beam from the side of frame column；
13 layers on the ground of 1-4,24 layers of elevator, frame column installation of embedded parts
It, need to be in elevator and frame segment trestle side because Bailey beam lower part is without support when Bailey beam is installed at non-framework beam position
Placing embedded parts in advance；Concealed beam is set in the shear wall of built-in fitting position, and concealed beam top is flushed with embedded part top, indulges muscle up and down each 4
Root reinforcing bar, reinforcing bar anchor into both sides of the edge component；After the completion of this layer of concrete placings, bracket is welded in built-in fitting side, is used for the later stage
Support Bailey beam；
1-5 welded still pipes support and lattice column
Reach welded still pipe support and lattice column after intensity requirement after concrete placings, ensures that weld strength reaches drawing requirement；
（2）, shellfish thunder platform construction
The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam, tool accordingly in 13 layers and 24 layers on the ground of main building
Body is as follows：
200 model Bailey beam of 2-1 pre-assembleds lifts splicing, after concrete crossbeam strength criterion reaches, by 200 model shellfishes after assembling
Lei Liang is put at the position that concrete crossbeam measures；Crossbeam will pad rubber pad and steel plate at corresponding position, prevent damage concrete surface layer；
2-2 welds the bracket of elevator and column correlation elevation location, and is laid with smooth steel plate, and steel plate is welded with bracket section；
2-3 carries out preassembling on ground in face of 321 Bailey beams, in place with tower crane lifting, in the Bailey beam of steel corbel and the steel of tiling
Plate carries out section weldering connection；
2-4 completely spreads 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, ensure whole stability；
（3）, steel strand wires installation
To solve across the Bailey beam amount of deflection problems of too of 30m, 15 layers and 26 floor surface frames are set a roof beam in place setting steel strand wires on the ground, per pass beam
If upper setting arterial highway steel strand wires；
At the specified absolute altitude of the corresponding crossbeam of the second layers of the 3-1 more than platform and position the built-in fitting of pre-buried steel strand wires and
Pvc pipe, 45 ° of pvc pipe angle with horizontal plane, concrete placings install steel strand wires to the designated position of 200 model Bailey beams after the completion；
3-2 steel strand wires install after according to require carry out steel strand wires tensioning.
2. the combined installation method of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature
It is：Step（1）, concrete crossbeam support step in, installation of embedded parts the specific steps are：
1. the main construction procedure of concrete crossbeam support post built-in fitting
1）Column center line and built-in fitting steel plate bottom end absolute altitude are made using measuring instrument, is 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 center
Deviation and gradient, and be adjusted, built-in fitting is fixed after meeting the requirements in corresponding position；
2. the main construction procedure of concrete crossbeam bottom built-in fitting
When hanging concrete crossbeam bottom built-in fitting, lifting will ensure that built-in fitting steel plate deforms not in lifting while ensureing built-in fitting
The verticality of reinforcing bar and steel plate measures built-in fitting flatness and gradient, and is adjusted, and fixing built-in fitting after meeting the requirements exists
Corresponding position；
3. the main construction procedure of elevator built-in fitting
1）Built-in fitting elevation line is made using measuring instrument, and is crossed at the scene, built-in fitting centre deviation and gradient are measured, and
It is 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 welded into whole using reinforcing bar both ends perforation plug welding steel plate design
It is installed after body, lower layer's wall reinforcing bar joint bar height will be higher by built-in fitting, after the completion of lower layer's concrete placings, built-in fitting will first be put within the walls
Corresponding position is fixed, then installs horizontal bar within the walls and within the walls concealed beam, finally installs vertical joint bar and horizontal bar within the walls again；
4. the Bailey beam main construction procedure of column built-in fitting
1）Built-in fitting elevation line is made using measuring instrument, and is crossed at the scene, built-in fitting centre deviation and gradient are measured, and
It is adjusted, built-in fitting is fixed after meeting the requirements in corresponding position；
2）After the completion of the column of no steel column indulges muscle and stirrup binding, built-in fitting is put into, and column built-in fitting and vertical muscle are tied up
It binds together, built-in fitting reinforcing bar uses straight anchor mode；After the completion of having the column of steel column to indulge muscle and stirrup binding, built-in fitting is put
Enter, built-in fitting reinforcing bar uses bent anchor mode, built-in fitting reinforcing bar to be held together with main bar upright column；
5. the main construction procedure of steel strand wires built-in fitting
1）The built-in fitting position line is made using measuring instrument, and is crossed at the scene, ensures built-in fitting centre bore, i.e. steel strand wires hole,
Corresponding with 200 centers type Bei Lei, after being adjusted in place, fixed built-in fitting is in corresponding position；
2）By pvc pipe across pre-buried pvc pipe behind built-in fitting hole, pvc pipe and horizontal plane folder at 45 ° while built-in fitting is pre-buried
Angle, reinforcing bar is inserted into pvc pipe to be prevented from fractureing during concrete placings；
3）Welding steel strand wires backing plate ensures that backing plate hole is corresponding with built-in fitting hole at the top of steel strand wires built-in fitting, and reinforcing bar is used in welding process
The connection positioning for being Kong Yukong, prevents welding metapore from not corresponding to.
3. the combined installation method of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature
It is：Step（1）, concrete crossbeam support step in, specifically include following steps：
1. steel pipe support welding
1）Steel pipe supports both ends and cuts 45 ° of planes in factory's completion, and welding hanging ring is carried out before dispatching from the factory（Convenient for on-site hoisting）, live right
Steel pipe supports the quasi- groove of both ends mark；
2）Steel pipe support is lifted at the 12nd layer and 23 floor layers before construction and stores, column built-in fitting and concrete crossbeam bottom built-in fitting
After the concrete strength at place 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 and are welded immediately, after weld strength reaches requirement after spot welding positioning
Safety rope is removed, and local strengthening is carried out 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 floor layers before construction and stores, column built-in fitting and concrete crossbeam bottom built-in fitting
After the concrete strength at place 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 jack and safety rope after spot welding positioning to weld immediately, angle steel and built-in fitting steel plate contact position
Need whole welding（It is welded with built-in fitting steel plate inside and outside angle steel）, batten plate and built-in fitting steel plate and angle steel are welded after angle steel welding
It is connected together, weld strength removes safety rope, and the gusset carry out office good in the both ends welding processing of lattice column after reaching requirement
Reinforce in portion.
4. the combined installation method of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature
It is：Step（2）, in shellfish thunder platform construction step, specifically include following steps：
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 the position of every group of beret slice；
2）Beret slice assembly is assembled using segmented；For convenience of construction, divides 3 sections to be hung to per Pin beret slices and set up at platform into marketing
Link；
3）It is fixed with flower stand after installation is complete per Pin, one or four or one or five is assembled into according to drawing；
4）After 200 model shellfish thunder platforms are all set up, reinforcement chord member is installed；
5）Every group（One four or five）Yoke plate is used between shellfish thunder platform（Channel steel or angle steel or 12mm thickness steel plates）It is attached, often
Two positions are at least connected in group beret slice length, ensure the lateral stability of every group of Bailey beam；
6）Secondary reinforcing is carried out after installation is complete to all chord bolts, flower stand bolt 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 under beret slice and reinforces swing arm, two sections of installations are divided to per Pin beret slices, first first segment are placed on specified
Position and fixation, then hang other end docking with tower crane；
3）It is fixed with flower stand after installation is complete per Pin, a union II or one or three is assembled into according to drawing；
4）After 321 model shellfish thunder platforms are all set up, reinforcement chord member is installed；
5）Every group（One union II or three）Yoke plate is used between shellfish thunder platform（Channel steel or angle steel or 12mm thickness steel plates）It is attached, often
Two positions are at least connected in group beret slice length, ensure the lateral stability of every group of Bailey beam；
6）Secondary reinforcing is carried out after installation is complete to all chord bolts, flower stand bolt to fasten；
7）Finally it is laid with diamond plate；
3. in 200 model shellfish thunder platforms and 321 shellfish thunder platform constructions,
When beret slice position conflicts with scaffold position, scaffold cross bar is removed, it is appropriate to adjust beret slice installation site.
5. the combined installation method of concrete crossbeam support according to claim 1, shellfish thunder platform construction and steel strand wires, feature
It is：Step（3）, in steel strand wires construction procedure, specifically include following steps：
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 the installation site trepanning of corresponding pvc pipe by measuring on big beam forms, is used in combination tied silk solid
Determine pvc pipe；
3）To prevent pvc pipe from being damaged 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 welds 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）Steel strand wires carry out tensioning after installation is complete, with jack, and tensioning oil meter selects shockproof, pipeline, anchorage, jack three
Person is concentric, and cable tensios control is based on reading, supplemented by stretch value check.
6. the composite structure of a kind of concrete crossbeam support of method installation described in claim 1, shellfish thunder platform construction and steel strand wires,
It is characterized in that：
The setting of shellfish thunder platform is supported in 12 layers and 23 layers of position setting concrete crossbeam accordingly in 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.
7. the composite structure of concrete crossbeam support according to claim 6, shellfish thunder platform construction and steel strand wires, feature exist
In：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 purlins Bei Lei
Frame is fixed together by least two parallel Bailey beams and is constituted, and the both ends of Bailey truss use small-sized beret slice as end branch
Adjacent Bailey beam is fixed together by support fixing piece, and the end of Bailey truss is connected adjacent Bailey truss using steel I-beam
Either the end of Bailey truss is directly anchored on concrete crossbeam together or the end of Bailey truss passes through bracket group welding piece
It is fixed on elevator shear wall or column with built-in fitting, Bailey beam top and bottom are fixed with reinforcement chord member.
8. the composite structure of concrete crossbeam support according to claim 6, 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 by bracing members part on the built-in fitting of concrete crossbeam；Column passes through built-in fitting
Connecting rod-lattice column.
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