CN107882270A - The constructing structure and construction method of superelevation space stiff beam reinforced concrete enveloped - Google Patents
The constructing structure and construction method of superelevation space stiff beam reinforced concrete enveloped Download PDFInfo
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- CN107882270A CN107882270A CN201711208365.3A CN201711208365A CN107882270A CN 107882270 A CN107882270 A CN 107882270A CN 201711208365 A CN201711208365 A CN 201711208365A CN 107882270 A CN107882270 A CN 107882270A
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- horizon bar
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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Abstract
The present invention relates to construction technology of steel configuration field, more particularly to a kind of constructing structure and construction method of superelevation space stiff beam reinforced concrete enveloped, by using upper strata horizon bar by the use of roof girder as support member, suspension rod is set up, lower floor's horizon bar, after scaffold board and glued board set up suspended operating platform, fastener for installing formula suspension bracket is sequentially completed by the use of suspended operating platform as operating platform, the reinforcing bar of colligation stiff beam, installation stiff beam suspended formwork and the step of pouring stiff beam concrete, so as to significantly reduce the construction cost of superelevation space stiff beam reinforced concrete enveloped, it is and fast with speed is set up, easy construction, draw materials the features such as easy, good social benefit and economic benefit can be created.
Description
Technical field
The present invention relates to construction technology of steel configuration field, more particularly to a kind of superelevation space stiff beam reinforced concrete enveloped
Constructing structure and construction method.
Background technology
Superelevation space stiff beam reinforced concrete enveloped construction, it is necessary to erection construction human users platform and beams of concrete
Supporting row frame, traditional construction technology include console mode full hall scaffold, and two kinds of Bailey bracket formula operating platform.Wherein land
Formula full hall scaffold must set up full hall scaffold comprehensively from ground, have workload is big, long in time limit, difficulty of construction is big, into
The shortcomings of this is high；Bailey bracket formula operating platform is to use section steel manufacture space truss, hole to be provided is set on the wall, using wall as supporting-point
Install the operating platform, compared with console mode full hall scaffold, a part of material, duration and cost can be saved, but height must be carried out
Sky assembling, difficulty of construction are larger；These are all that those skilled in the art do not expect to see.
The content of the invention
For above-mentioned problem, the invention discloses a kind of construction of superelevation space stiff beam reinforced concrete enveloped
Structure, roof girder is provided with the top of the superelevation space, wherein, the constructing structure includes suspended operating platform and is located at
Stiffness girder construction on the suspended operating platform；
The suspended operating platform includes upper strata horizon bar, lower floor's horizon bar, suspension rod, scaffold board and glued board；It is described
For upper strata horizon bar along the girder steel primary-secondary beam direction bidirectional arrangements on the roof girder, the suspension rod is arranged on the upper strata
Between horizon bar and lower floor's horizon bar, the scaffold board is paved with lower floor's horizon bar, and be paved with the scaffold board
The glued board；
The stiffness girder construction includes girder steel, fastener type suspension bracket, reinforcing bar, template；The girder steel is arranged at the superaltitude
Between top and in the fastener type suspension bracket, the fastener type suspension bracket is fixed on the roof girder, the reinforcing bar colligation
On the girder steel, the model sheetinstallat has poured concrete with by the steel on the fastener type suspension bracket in the template
Beam and the reinforcing bar give coated.
The constructing structure of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the constructing structure also includes
Safety net, the safety net are layed in the lower section of the suspended operating platform.
The constructing structure of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the girder steel is apart from ground
Highly it is not less than 24m.
The constructing structure of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the both ends of the suspension rod are all provided with
Dual anti-slide fastener part is equipped with, and the suspension rod is horizontal with the upper strata horizon bar and the lower floor respectively by the dual anti-slide fastener part
Bar connects.
The constructing structure of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the template include bed die and
Side form；Split bolt is respectively connected between the bed die, the side form and the girder steel.
The invention also discloses a kind of construction method of superelevation space stiff beam reinforced concrete enveloped, the superelevation space
Top be provided with roof girder and girder steel, wherein, methods described comprises the following steps：
Step S1, there is provided upper strata horizon bar, lower floor's horizon bar, suspension rod, scaffold board, glued board, reinforcing bar, fastener type suspension bracket and
Template；
Step S2, by the upper strata horizon bar along the girder steel primary-secondary beam direction bidirectional arrangements on the roof girder,
And after one end of the suspension rod is connected with the upper strata horizon bar, lower floor's horizon bar is connected to the suspension rod
The other end；
Step S3, and after the scaffold board is completely spread on lower floor's horizon bar, in described in full paving on the scaffold board
Glued board is to form suspended operating platform；
Step S4, the fastener type suspension bracket is fixed on the roof girder, and the girder steel is located at the fastener type and hung
In frame；
Step S5, in reinforcing bar described in colligation on the girder steel, and in installing the template on the fastener type suspension bracket；
Step S6, in casting concrete in the template, and after the template and the suspended operating platform is removed
Form the stiff beam.
The construction method of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, by lower floor's horizon bar
It is connected to after the other end of the suspension rod, the step S2 is also included in the step of laying safety net below lower floor's horizon bar
Suddenly.
The construction method of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the stiff beam is apart from ground
Height be not less than 24m.
The construction method of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, the both ends of the suspension rod are all provided with
Dual anti-slide fastener part is equipped with, and the suspension rod is horizontal with the upper strata horizon bar and the lower floor respectively by the dual anti-slide fastener part
Bar connects.
The construction method of above-mentioned superelevation space stiff beam reinforced concrete enveloped, wherein, on the fastener type suspension bracket
After installation form, the step S5 is also included between the template and the girder steel the step of installing split bolt.
Foregoing invention has the following advantages that or beneficial effect：
First, the suspended operating platform in the present invention, its upper strata horizon bar, lower floor's horizon bar, suspension rod are conventional pin
Hand steel pipe, can be used in turn, and speed is fast, reduce cost, be easy to operate, materials are easy with setting up, technical economic benefit compared with
The characteristics of good.
2nd, the single component of each pipe fitting in the present invention is small, in light weight, so as to have the advantages of convenient operation, easy construction；
3rd, the constructing structure stiff beam in the present invention is higher away from ground, and advantage is bigger, and measure cost can be greatly reduced, from
And good social benefit and economic benefit can be created.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, the present invention and its feature, outside
Shape and advantage will become more apparent.The identical mark instruction identical part in whole accompanying drawings.Not can according to than
Example draws accompanying drawing, it is preferred that emphasis is shows the purport of the present invention.
Fig. 1 is the structural representation of centre mounted type operating platform of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the constructing structure of superelevation space stiff beam reinforced concrete enveloped in the embodiment of the present invention；
Fig. 3 is the construction method flow chart of superelevation space stiff beam reinforced concrete enveloped in the embodiment of the present invention.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention
It is fixed.
Embodiment one：
As shown in Figure 1-2, the present embodiment is related to a kind of constructing structure of superelevation space stiff beam reinforced concrete enveloped, should
Superelevation is provided with roof girder at the top of space, specifically, the constructing structure includes suspended operating platform and grasped positioned at suspension type
Make stiffness girder construction on platform；Suspended operating platform includes upper strata horizon bar 11, lower floor's horizon bar 13, suspension rod 12, pin hand
Plate 14 and glued board 15；Along the primary-secondary beam direction bidirectional arrangements of girder steel 21 on roof girder, suspension rod 12 is set upper strata horizon bar 11
Between upper strata horizon bar 11 and lower floor's horizon bar 13, scaffold board 14 is paved with lower floor's horizon bar 13, and be paved with scaffold board 14
Glued board 15；Stiffness girder construction includes girder steel 21, fastener type suspension bracket 22, reinforcing bar, template 23；Girder steel 21 is arranged at superelevation space
Top is simultaneously located in fastener type suspension bracket 22, and fastener type suspension bracket 22 is fixed on roof girder, and reinforcing bar colligation is on girder steel 21, template 23
On fastener type suspension bracket 22, it is coated so that girder steel 21 and reinforcing bar to be given that concrete has been poured in template 23.
Preferably, above-mentioned constructing structure also includes safety net, and above-mentioned safety net is layed in the lower section of suspended operating platform
Further guarantee is provided with the personal safety for worker.
Preferably, above-mentioned girder steel 21 is not less than 24m (i.e. less than or equal to 24m), the outsourcing reinforcing bar of girder steel 21 apart from ground
Height of the stiff beam formed after concrete apart from ground is not less than 24m.
Preferably, the both ends of above-mentioned suspension rod 12 are provided with dual anti-slide fastener part, and suspension rod 12 is distinguished by dual anti-slide fastener part
It is connected with upper strata horizon bar 11 and lower floor's horizon bar 13.
Preferably, above-mentioned template 23 includes bed die and side form；Connect between bed die and girder steel 21, between side form and girder steel 21
Split bolt 24 is connected to further to strengthen the steadiness of template 23.
In a specific embodiment of the invention, above-mentioned suspended operating platform is using roof girder as supporting member, by upper water
Flat bar (i.e. upper strata level frame pipe), lower floor's horizon bar (i.e. lower floor's level frame pipe), suspension rod, landing slab (including scaffold board and gluing
Plate) composition.Wherein, suspension bracket material therefor is：Scaffold tube, fastener, springboard, template and safety net, frame pipe are selected Steel pipe, material Q235B.Along girder steel primary-secondary beam direction bidirectional arrangements on room girder steel, spacing is upper strata horizon bar
1.2m, lower floor's horizon bar are operating platform bar, spacing upper layer horizon bar, and centre suspension rod is connected with levels horizon bar.Hang
Pole length is according to depending on deck-molding, and upper and lower side uses dual anti-slide fastener part, and staying for termination sets the not small 200mm of length.Lower floor's horizon bar
On completely spread scaffold board, spacing is not more than 200mm, and joint area is tied using iron wire；Glued board (plank sheathing) is completely spread on scaffold board,
Form integral platform；Lower of bottom rack sets safety net.
In addition, the main points of setting up of above-mentioned suspended operating platform include：
1) suspended operating platform sets up order：Upper strata horizon bar sets up → and suspension rod sets up → lower floor's horizon bar is set up → and spreads
If safety net → scaffold board laying → glued board laying.
2) above-mentioned diameter of steel tube is not less than 48mm, and joint buckle is no less than 2, and wall thickness is not less than 3.5mm.
3) above-mentioned dual anti-slide fastener part Tightening moment is not less than 60N.
4) above-mentioned scaffold board uses high-quality plank, thickness of slab 50mm.
5) Dense mesh screen is hung below above-mentioned suspended operating platform surrounding bar as safety net.
In a specific embodiment of the invention, above-mentioned stiffness girder construction includes girder steel, fastener type suspension bracket, reinforcing bar, template；
The fastener type suspension bracket is the full hall fastener type steel pipe suspension bracket hung on roof girder.
1) above-mentioned stiffness girder construction uses fastener type suspension bracket as form bracing system, separately only with suspended operating platform
Erect and put, suspension bracket level interval is 600mm, width deck-siding+220mm.
2) side form of above-mentioned template and bed die are from multi-layer sheet thick 15mm.
3) girder is vertically arranged with above-mentioned template, back of the body side is horizontally arranged with girder, the girder and back of the body side use steel pipeSpacing is 600mm.
4) above-mentioned side form and bed die are reinforced is welded using the split bolts of ￠ 12 and girder steel, spacing 600mm.
Embodiment two
As shown in figure 3, present embodiment discloses a kind of construction method of superelevation space stiff beam reinforced concrete enveloped, on
State and be provided with roof girder and girder steel at the top of superelevation space, specifically, this method comprises the following steps：
Step S1, there is provided upper strata horizon bar, lower floor's horizon bar, suspension rod, scaffold board, glued board, reinforcing bar, fastener type suspension bracket and
Template.
Step S2, by upper strata horizon bar along girder steel primary-secondary beam direction bidirectional arrangements on roof girder, and by suspension rod
After one end is connected with upper strata horizon bar, lower floor's horizon bar is connected to the other end of suspension rod, below lower floor horizon bar
Lay safety net.
Preferably, the both ends of suspension rod are provided with dual anti-slide fastener part, and suspension rod by dual anti-slide fastener part respectively with upper water
Flat bar connects with lower floor horizon bar.
Step S3, and after completely scaffold board is spread on lower floor's horizon bar, hung in completely spreading glued board on scaffold board with being formed
Formula operating platform.
Step S4, fastener type suspension bracket is fixed on roof girder, and girder steel is located in fastener type suspension bracket.
Step S5, in assembling reinforcement on girder steel, and in installation form on fastener type suspension bracket.
Preferably, after installation form on fastener type suspension bracket, step S5, which is also included between template and girder steel, to be installed to drawing
The step of bolt.
Step S6, in casting concrete in template, and stiff beam is formed after form removal and suspended operating platform.
Preferably, height of the above-mentioned stiff beam apart from ground is not less than 24m.
In above-mentioned construction method, the step of step S1-S3 is stiff beam reinforced concrete enveloped suspended operating platform；Step
Rapid S4-S6 is stiff beam reinforced concrete enveloped suspended formwork construction procedure.Construction technology process is specially：Utilize roof girder
Set up reinforcing bar → installation stiff beam suspended formwork of suspended operating platform → fastener for installing formula suspension bracket → colligation stiff beam →
Pour stiff beam concrete → form removal → dismounting suspended operating platform → roof boarding construction.
The present invention is further described with specific example below：
Fuhua Tongda Pesticide Science and Technology Co.ltd. ,Le Shan City,Sichuan Province salt phosphorous chemical industry circulation industry heat and power system expands can technological transformation
Project coal storage silo engineering is made up of 2 circular storehouses of independence altogether, silo (outer storehouse) internal diameter 36m, high 36.7m, wall thickness 500mm；
Inner cylinder internal diameter 2.4m, wall thickness 650mm.Silo sets one layer of cast-in-situ reinforced concrete to have beam slab in -0.100m, at absolute altitude 3.05m positions
One layer of outrigger platform is set, and funnel is annular funnel, is divided into inside and outside two buckets.Outer silo sets reinforced concrete at absolute altitude 10.5m
Soil hopper, funnel ring beam insertion bulkhead, ring depth of beam is 4550mm.In the top ring that absolute altitude 32.7m~36.7m is silo
Beam, it is highly 3500m, deck-siding 1050mm.Hold Ceiling is girder steel, the space stiffness structure of reinforced concrete enveloped, cast-in-place steel
Reinforced concrete roof boarding.
Silo roof stiffness structure is designed as 16 girder steel constructions, model：WH1200*400*25*40, span are：
15.45m, secondary beam totally 152, main model：WH300*200*10*12 and WH450*250*8*13；Girder steel outsourcing C30 reinforcing bars
Concrete；Roof boarding is 150mm thickness C30 armored concrete.
Construction technology process：Suspended operating platform → fastener for installing formula suspension bracket → colligation stiff beam is set up using roof girder
Reinforcing bar → installation stiff beam suspended formwork → pour stiff beam concrete → form removal → dismounting suspended operating platform → room
Panel is constructed.
Specifically, above-mentioned stiff beam reinforced concrete enveloped suspended operating platform construction technology and requirement are：
1.1 suspended operating platforms design：
1) designed for superelevation space stiff beam construction operation platform, from suspension type frame pipe operating platform, compared to biography
The full hall frame of the console mode of system or space Bailey bridge posture operating platform, with setting up, speed is fast, reduces cost, be easy to operate, taking
The characteristics of material is easy, and technical economic benefit is preferable；Wherein, the description on the structure and parameter of suspended operating platform refer to
Embodiment one, is not just repeated herein.
2) suspended operating platform
A, load：
Often across the deadweight of (amount to 16 across) suspension bracket：
Suspension rod steel pipe：2.5*25*3.85=240.625kg G1=2406N
Lower horizontal steel pipe：(4*10+16*3) * 3.85=338.8kg G2=3388N
Fastener：25*4*1.34=134kg G3=1340N
Scaffold board：3.14* (18*18-1.85*1.85)/16*0.8*35=1761kg
G4=17610N
Template：3.14* (18*18-1.85*1.85)/16*6=377.5kg G5=3775N
Safety net：3.14* (18*18-1.85*1.85)/16*0.2=12.58kg G6=126N
It is total:(G1+G2+G3+G4+G5+G6)=28645N=28.65KN
B, construction loads：Take 800N/m2
Q=800*3.14* (18*18-1.85*1.85)/16=50331N=50.33KN
Calculating the total load head considered is：28.65*1.2+50.33*1.4=104.84KN
Often across carrying antiskid fastener number be 50, be calculated as 25 according to 1/2
105KN/25=4.2KN ＜ RC=8KN
Main points are set up and removed to 1.2 suspended operating platforms
1) main points of setting up of the suspended operating platform can refer to embodiment one, just not repeated herein.
2) the dismounting main points of the suspended operating platform
1., after the completion of stiff beam concrete construction, template and suspension bracket can be carried out after concrete reaches strength of mould stripping
Remove.
2., suspension bracket dismounting order：Scaffold board and form removable → safety net dismounting → suspension rod and cross bar dismounting → upper wire
Frame is removed.
To sum up, the constructing structure and construction party of a kind of superelevation space stiff beam reinforced concrete enveloped disclosed by the invention
Method, by by the use of roof girder as support member using upper strata horizon bar, suspension rod set up, lower floor's horizon bar, scaffold board and gluing
After plate sets up suspended operating platform, by the use of suspended operating platform as operating platform be sequentially completed fastener for installing formula suspension bracket,
The reinforcing bar of colligation stiff beam, installation stiff beam suspended formwork and the step of pour stiff beam concrete, so as to significantly reduce
The construction cost of superelevation space stiff beam reinforced concrete enveloped, and with setting up speed fast, easy construction, the materials spy such as easily
Point, and then good social benefit and economic benefit can be created.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and above-described embodiment can be with
Change case is realized, will not be described here.Such change case has no effect on the substantive content of the present invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this has no effect on the substantive content of the present invention.Therefore, every content without departing from technical solution of the present invention, foundation
The technical spirit of the present invention still falls within the present invention to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of technical scheme protection.
Claims (10)
1. a kind of constructing structure of superelevation space stiff beam reinforced concrete enveloped, roofing is provided with the top of the superelevation space
Beam, it is characterised in that the constructing structure includes suspended operating platform and the stiffness on the suspended operating platform
Girder construction；
The suspended operating platform includes upper strata horizon bar, lower floor's horizon bar, suspension rod, scaffold board and glued board；The upper strata
For horizon bar along the girder steel primary-secondary beam direction bidirectional arrangements on the roof girder, it is horizontal that the suspension rod is arranged on the upper strata
Between bar and lower floor's horizon bar, the scaffold board is paved with lower floor's horizon bar, and is paved with the scaffold board described
Glued board；
The stiffness girder construction includes girder steel, fastener type suspension bracket, reinforcing bar, template；The girder steel is arranged at the superelevation space
Top is simultaneously located in the fastener type suspension bracket, and the fastener type suspension bracket is fixed on the roof girder, and the reinforcing bar colligation is in institute
State on girder steel, the model sheetinstallat on the fastener type suspension bracket, poured in the template concrete with by the girder steel and
The reinforcing bar gives coated.
2. the constructing structure of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 1, it is characterised in that described
Constructing structure also includes safety net, and the safety net is layed in the lower section of the suspended operating platform.
3. the constructing structure of superelevation space as claimed in claim 1 stiff beam reinforced concrete enveloped, it is characterised in that described
Height of the girder steel apart from ground is not less than 24m.
4. the constructing structure of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 1, it is characterised in that described
The both ends of suspension rod are provided with dual anti-slide fastener part, and the suspension rod by the dual anti-slide fastener part respectively with the upper strata horizon bar
Connected with lower floor's horizon bar.
5. the constructing structure of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 1, it is characterised in that described
Template includes bed die and side form；Split bolt is respectively connected between the bed die, the side form and the girder steel.
6. a kind of construction method of superelevation space stiff beam reinforced concrete enveloped, roofing is provided with the top of the superelevation space
Beam and girder steel, it is characterised in that methods described comprises the following steps：
Step S1, there is provided upper strata horizon bar, lower floor's horizon bar, suspension rod, scaffold board, glued board, reinforcing bar, fastener type suspension bracket and mould
Plate；
Step S2, by the upper strata horizon bar along the girder steel primary-secondary beam direction bidirectional arrangements on the roof girder, and
After one end of the suspension rod is connected with the upper strata horizon bar, lower floor's horizon bar is connected to the another of the suspension rod
End；
Step S3, and after the scaffold board is completely spread on lower floor's horizon bar, in completely spreading the gluing on the scaffold board
Plate is to form suspended operating platform；
Step S4, the fastener type suspension bracket is fixed on the roof girder, and the girder steel is located in the fastener type suspension bracket；
Step S5, in reinforcing bar described in colligation on the girder steel, and in installing the template on the fastener type suspension bracket；
Step S6, in casting concrete in the template, and formed after the template and the suspended operating platform is removed
The stiff beam.
7. the construction method of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 6, it is characterised in that
After lower floor's horizon bar is connected into the other end of the suspension rod, the step S2 is also included under lower floor's horizon bar
The step of side's laying safety net.
8. the construction method of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 6, it is characterised in that institute
State height of the stiff beam apart from ground and be not less than 24m.
9. the construction method of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 6, it is characterised in that institute
The both ends for stating suspension rod are provided with dual anti-slide fastener part, and the suspension rod is horizontal with the upper strata respectively by the dual anti-slide fastener part
Bar connects with lower floor's horizon bar.
10. the constructing structure of superelevation space stiff beam reinforced concrete enveloped as claimed in claim 6, it is characterised in that in
On the fastener type suspension bracket after installation form, the step S5, which is also included between the template and the girder steel, to be installed to drawing spiral shell
The step of bolt.
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| CN106869492A (en) * | 2015-12-13 | 2017-06-20 | 青岛星锐机械有限公司 | A kind of across high-altitude truss mould plate |
| CN205654063U (en) * | 2016-05-17 | 2016-10-19 | 中国建筑第八工程局有限公司 | Tower crane concrete cap's safety protection platform is demolishd in high altitude |
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Application publication date: 20180406 |