CN108035594A - The prefabricated decompression cone construction method of concrete silo structure - Google Patents
The prefabricated decompression cone construction method of concrete silo structure Download PDFInfo
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- CN108035594A CN108035594A CN201711303413.7A CN201711303413A CN108035594A CN 108035594 A CN108035594 A CN 108035594A CN 201711303413 A CN201711303413 A CN 201711303413A CN 108035594 A CN108035594 A CN 108035594A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
- E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
- E04H7/26—Constructions, with or without perforated walls, depending on the use of specified materials mainly of concrete, e.g. reinforced concrete or other stone-like materials
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Abstract
The present invention relates to building engineering construction field, is specifically a kind of prefabricated decompression cone construction method of concrete silo structure.Pour and conserve including preparation, phase III decompression cone prefabricated part hanging, the binding of fourth stage decompression cone reinforcing bar, concrete secondary before first stage decompression cone prefabricated components processing and maintenance, second stage decompression cone prefabricated part hanging.Present invention decompression cone uses the prefabricated cone lifting construction of armored concrete, cone is completed in precasting yard, operation is skilled, work progress is easy to monitor, maintenance is concentrated to be conducive to improve quality of concrete members, worker laboring environment improves, labor intensity reduces, reduce the risk in labo r resources input and work progress, while prefabricated components production maintenance, carry out bottom storehouse fitter's work, project duration can be obviously shortened, improve construction efficiency, mechanization installation reduces live scaffold and builds and template support work, quick construction is convenient, save project cost, effectively reduce environmental pollution and construction noise pollution, be conducive to energy-saving.
Description
Technical field
The present invention relates to building engineering construction field, more particularly to a kind of prefabricated decompression cone of concrete silo structure
Construction method.
Background technology
Reinforced concrete silo is the ideal structure form that cement plant bulk cargo is homogenized processing in advance, and diameter is more than the cement of 15m
Storehouse or material homogenizer storehouse, decompression cone construction in storehouse is frequently with traditional cast-in-place concrete structure, after the completion of the wall slding form operation of storehouse,
The cast-in-place concrete cone out of storehouse, because its volume and height are big, working procedure is more, heavy workload, complex process, difficulty of construction
Greatly, and to construction quality height is required, it is long in time limit, it is silo structure construction difficult point.
The content of the invention
Present invention seek to address that the above problem, so that working procedure can be reduced, simplify processing step, improve by providing one kind
Construction quality and efficiency, reduce the prefabricated decompression cone construction of difficulty of construction, the concrete silo structure of saving construction cost
Method.
The present invention solves described problem, and the technical solution of use is：
A kind of prefabricated decompression cone construction method of concrete silo structure, includes the following steps：
First, the processing of first stage decompression cone prefabricated components and maintenance：
（1）Pour thickness and be more than 100mm mattess, steel form is made according to decompression cone prefabricated components design size, and
Template support is completed, ensures that the control of formwork dimensional discrepancy exists（- 5mm, 0）Within；
（2）Reinforcing bar binding and built-in fitting are completed according to drawing, hanging ring banding fixed and proofread built-in fitting, hanging ring and reserving hole
Size and position；
（3）Depressurize the concreting of cone prefabricated components and maintenance, concreting is vibrated uniformly closely knit, is poured every time along plate
Length direction is no more than 3m, pays attention to the position of template, built-in fitting, hanging ring and reserving hole, it is ensured that decompression cone prefabricated components add
Work precision, conserves to the valid period of standard and reaches design strength；
2nd, preparation before second stage decompression cone prefabricated part hanging：
（1）Suitable drag-line, prefabricated board number consecutively, on prefabricated board are selected according to decompression cone prefabricated board weight and hoisting point position
Mark its longitudinal centre line, it is ensured that every piece of decompression cone prefabricated board aligns with the positioning of bearing, positioning annulus reticule in the wall of storehouse；
（2）Bearing top surface is cleared up, and checks bearing top mark height, flatness, carries out repetition measurement positioning to its top surface absolute altitude, storehouse wall is connected
Built-in fitting absolute altitude carries out repetition measurement and positioning at drag-line position, and welding rod, connects drag-line；
（3）Bottom storehouse equipment is installed and operating platform, storehouse inhaul are tensioned the horizontal annular operation of workbench, adjustment cone and put down
Platform；
3rd, phase III decompression cone prefabricated part hanging：
（1）Backfill compaction in layers is simultaneously laid with 30mm steel plates, and crane is installed in place along storehouse periphery, is depressurized using bikini monolithic
Cone prefabricated board lifts, and the prefabricated plate level of monolithic is lifted to the jack adjusting angle by connecting two lower suspension centres after proper height
Degree, will depressurize cone prefabricated board by drag-line after installation is in place and be connected with storehouse wall；
（2）Firstth group of three pieces of decompression cone prefabricated boards are spaced 120 ° of liftings and complete according to the method described above, and lifting positioning annulus is extremely
Absolute altitude is positioned, adjustment positioning annulus to horizontal level, decompression cone prefabricated board bottom position is adjusted by Miniature hydraulic jick
And level, it is ensured that decompression cone prefabricated board center line is overlapped with bearing mark center line, positioning annulus reticule in the wall of storehouse, is tensioned
Leading screw carries out angle adjustment, it is ensured that decompression cone prefabricated board and horizontal line angle are 60 degree, horizontal elevation dimension in installation process
In ± 1mm, top setting circle ring center control errors can be adjusted control errors in ± 5mm with thin parallels, after the completion of
Annulus is positioned to weld with built-in fitting on decompression cone prefabricated board；
（3）After first group of decompression cone prefabricated board installation is fixed, the lifting of remaining each group prefabricated board is carried out according to the method described above, often
120 ° of block plate interval, during lifting along clockwise direction with counterclockwise alternately, complete all decompression cone prefabricated boards and
After top blind flange lifting, decompression cone prefabricated board is welded into entirety with top blind flange；
4th, the binding of fourth stage decompression cone reinforcing bar, concrete secondary are poured and conserved：
（1）Start pouring for concrete, concreting edge decompression conical ring depth of beam after the completion of decompression conical ring beam steel bar colligation
Direction is completed in three times, and is conserved to intensity and met the requirements by regulation；
（2）Decompression conical ring beam concrete strength reach certain requirement, start decompression cone upper strata indulge, circumferential reinforcement binding, decompression cone
Layer concrete segmentation pours on body prefabricated board, and every section of 2.4m formwork supporting plate casting concrete, treats that intensity is met the requirements along its length
Afterwards, start second segment to pour, until after the completion of strata suprapyramidale concrete all pours, conserved to intensity and met according to code requirement
It is required that；
（3）Plain concrete segmentation pours after vertex of a cone template support, and is conserved to intensity and met the requirements according to code requirement；
（4）Form removal after layer concrete, vertex of a cone plain concrete strength reach 100% on decompression cone prefabricated board.
Using the present invention of above-mentioned technical proposal, compared with prior art, the characteristics of it is protruded, is：
1. decompression cone uses prefabricated cone lifting construction, cone is completed in precasting yard, and operation is skilled, and work progress is easy to supervise
Control, concentrates maintenance to be conducive to improve quality of concrete members.
2. worker laboring environment improves, labor intensity reduces, and reduces the risk in the input and work progress of labo r resources.
3. preform production conserves, carry out bottom storehouse fitter's work, project duration can be obviously shortened, raising is applied
Work efficiency rate.
4. mechanization installation, which reduces live scaffold, builds and work with template support, quick construction is convenient, save project into
This, effectively reduces environmental pollution and construction noise pollution, is conducive to energy-saving.
Preferably, the further technical solution of the present invention is：
It is different according to silo diameter that reinforced concrete silo depressurizes cone prefabricated board, can will decompression cone to be divided into 12-36 blocks prefabricated
Plate and one piece of top blind flange.
The prefabricated decompression cone of armored concrete, can construct in being fully completed in the silo of storehouse wall sliding formwork, including decompression cone
Prefabricated board and top blind flange processing, installation, decompression conical ring beam and the binding of decompression cone prefabricated board top bars, concrete secondary pour
Build, the plain concrete vertex of a cone pours, and can also construct in the silo of storehouse wall sliding formwork to proper height.
Decompression cone prefabricated board uses variable cross-section, and underplate concrete is prefabricated, and concrete secondary pours after local later stage installation；
Precast concrete top blind flange, is prefabricated into the side number regular polygon equal with piecemeal quantity, with subtracting according to cone piecemeal quantity
Pre-embedded steel slab on the corresponding face of cone prefabricated board is pressed, decompression cone prefabricated board is welded into whole with top blind flange after installation is complete
Body.
Cone prefabricated board is depressurized, it is prefabricated preceding according to Hoisting Program confirmation most unfavorable combination, carry out section check.
Decompression cone prefabricated board is supported in silo storehouse wall lower inside and protrudes at bearing, is embedded with the inside of the wall of silo storehouse pre-buried
Part.
Pre-buried hanging ring is connected by snap ring with the drag-line on the wall of storehouse on decompression cone prefabricated board.
Every piece of decompression cone prefabricated board lifting, in arranging two groups of parallels in the wall of storehouse on bearing, passes through Miniature hydraulic jick
Adjustment decompression cone prefabricated board bottom level；Pass through two groups of concrete cube blocks and pad between decompression cone prefabricated board and storehouse wall
Iron, adjustment storehouse wall and the prefabricated sheet separation of decompression cone；Before depressurizing the lifting of cone prefabricated board, bearing and concrete cube in the wall of storehouse
Cement mortar is laid between block and reinforces cone bottom, prevents from sliding.
Cone prefabricated board and positioning annulus are depressurized, by depressurizing pre-embedded steel slab at the top of cone prefabricated board, at first group three pieces
Plate mounting and adjusting welds afterwards in place, and interim fixation is integrally formed, and all depressurizes after the completion of cone prefabricated board lifts and removes.
Concrete curing, pour completion 24 it is small when it is interior forbid top increase construction loads, it is external immediately after concrete form removal
Surface carries out watering maintenance, and protects concrete surface and hold moistening, and curing time must not be less than 7 days.
Brief description of the drawings
Fig. 1 is the structure diagram of the prefabricated decompression cone of reinforced concrete silo of the embodiment of the present invention；
Fig. 2 is A-A schematic cross-sectional views in Fig. 1.
Fig. 3 is the partial enlargement structural representation of A in Fig. 1.
Fig. 4 is the partial enlargement structural representation of B in Fig. 1.
Fig. 5 is the structure diagram of hanging apparatus of the embodiment of the present invention；
Fig. 6 is the structure diagram of decompression cone prefabricated board of the embodiment of the present invention；
Fig. 7 is the overlooking the structure diagram of Fig. 6；
Fig. 8 is the structure diagram of decompression cone prefabricated board of the embodiment of the present invention；
Fig. 9 is the overlooking the structure diagram of Fig. 8；
Figure 10 is the structure diagram of drag-line snap ring of the embodiment of the present invention；
In figure：Storehouse wall 1；Bearing 2；Depressurize cone prefabricated board 3；Top blind flange 4；The upper layer concrete 5 of decompression cone；Built-in fitting 6；Drag-line
7；Position annulus 8；Hanging ring 9；Depressurize conical ring beam 10；Concrete cube block 11；Parallels 12；Snap ring 13；Vertex of a cone plain concrete 14.
Embodiment：
With reference to embodiment, the invention will be further described, and purpose, which is only that, more fully understands present invention, therefore, institute
The example of act is not intended to limit protection scope of the present invention.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, a kind of concrete silo structure is pre-
System decompression cone construction method, it is different according to silo diameter, decompression cone is divided into 12-36 blocks prefabricated board and one piece of top blind flange
4, decompression cone prefabricated board 3 uses variable cross-section, and underplate concrete is prefabricated, and concrete secondary pours after local later stage installation.This reality
Example is applied by taking diameter 22m raw material silos as an example, cone is divided into 27 pieces of decompression cone prefabricated boards 3 and 1 piece of top blind flange 4, monolithic decompression
3 heavy 23.4t of cone prefabricated board, it is assembled after in-situ precast, comprise the following steps：
First, the processing of first stage decompression cone prefabricated components and maintenance：
（1）Long 60m, width 30m are poured in prefabricated place, thickness is more than 100mm mattess, according to decompression cone prefabricated board 3
Steel form is made with 4 design size of top blind flange, and completes template support, the dimensional discrepancy control after formwork exists（- 5mm, 0）It
It is interior；
（2）Reinforcing bar binding and built-in fitting 6,9 banding fixed of hanging ring are completed according to drawing, the steel reinforcing at lifting unfavorable position,
Proofread size and the position of built-in fitting 6, hanging ring 9 and reserving hole；
（3）Depressurize the concreting of cone prefabricated components and maintenance, when concreting vibrates uniformly closely knit, and monolithic elements are each
Concreting, 3m is must not exceed along plate length direction, during pay attention to template, built-in fitting 6, the position of hanging ring 9 and reserving hole
Putting not shift, it is ensured that decompression cone prefabricated components machining accuracy, after the completion of according to specification regulation maintenance to the valid period of standard
And reach design strength, lifting plan was formulated according to 14 days, 28 days Measurement Reports.
2nd, preparation before second stage decompression cone prefabricated part hanging：
（1）7 Force checking calculation of drag-line is carried out according to decompression 3 weight of cone prefabricated board and hoisting point position, selects Q235, diameter 40mm
Steel wire rope as drag-line 7, number consecutively on decompression cone prefabricated board 3, marks its longitudinal centre line, it is ensured that every piece of decompression cone
Prefabricated board 3 and bearing 2 in the wall of storehouse, the reticule for positioning annulus 8 are alignd.
（2）2 top surface of bearing is cleared up, and checks 2 top mark of bearing height, flatness, and repetition measurement positioning is carried out to its top surface absolute altitude,
Accurately marked on bearing 2 in the wall of storehouse the numbering of every piece of decompression cone prefabricated board 3,3 lower central position of decompression cone prefabricated board,
Edge positions；Absolute altitude repetition measurement and positioning are carried out to built-in fitting 6 at the wall 1+ 24.828m of storehouse, confirm that errorless rear welding rod installation is drawn
Rope 7.
（3）It is sequentially completed annular behaviour at bottom storehouse equipment and operating platform, storehouse inhaul tensioning workbench and+8.5m absolute altitudes
Make the installation of platform.
3rd, phase III decompression cone prefabricated board lifting：
（1）According to Scheme Choice 250t pedrail cranes, the long 61.5m of principal arm, 83 ° of the principal arm elevation angle, the long 22m of auxiliary, the centre of gyration can
Control is in 20-24m regions, minimum Lifting Capacity 28.2t, and crane travel zone to ensure bearing capacity, fully press by backfill region
Reality and the steel plate for being laid with 30mm thickness, prevent that vehicle sinks in lifting, are installed along storehouse periphery in place.Subtracted using bikini lifting monolithic
Cone prefabricated board 3 is pressed, drag-line 7 selects the steel wire rope of diameter 40mm, single wire rope pulling force 166.4KN allowable, monolithic decompression cone
3 level of body prefabricated board is lifted to proper height, is adjusted the angle by the jack for connecting two lower suspension centres, passes through drawing after installation is in place
Rope 7 is connected cone prefabricated board 3 is depressurized with storehouse wall 1.
（2）3 bottom position of Miniature hydraulic jick adjustment decompression cone prefabricated board and level, bottom is adjusted by parallels 12
Horizontal absolute altitude, concrete cube block 11 and the adjustment decompression cone of parallels 12 prefabricated board 3 and 1 gap of storehouse wall, it is ensured that decompression cone
3 mark center line bottom of prefabricated board is overlapped with center line marked on bearing 2 in the wall of storehouse；Centerline top and top setting circle
The reticule alignment of ring 8, angle adjustment is carried out with tensioning leading screw, ensures that decompression cone prefabricated board 3 is with horizontal angle
60°.For horizontal elevation dimension control errors in ± 1mm, the vertex of a cone positions 8 center of circle control errors of annulus in ± 5mm in installation process
It is interior, can be adjusted with thin parallels, after the completion of position annulus 4 with decompression cone prefabricated board 3 on built-in fitting 6 weld.
（3）First group of decompression cone prefabricated board 3 lifts as stated above, and in the counterclockwise direction, first is selected in 270 °
At axis, for second decompression cone prefabricated board 3 at 150 ° of axis, three pieces decompression cone prefabricated board 3 is installed on 30 ° of axis
Place, second group along clockwise direction, and lifting mode is identical with above-mentioned first group, and the 3rd group in the counterclockwise direction, lifting mode and
Above-mentioned first group identical, will decompression cone prefabricated board 3 and top after being sequentially completed all decompression cone prefabricated boards 3 and top blind flange 4
Corresponding built-in fitting 6 welds on portion's cover board 4.
4th, the binding of fourth stage decompression cone reinforcing bar, concrete secondary are poured and conserved：
（1）10 reinforcing bar of binding decompression conical ring beam, template support, 10 concrete of decompression conical ring beam are completed in three times along its short transverse
Pour, and conserve to intensity and meet the requirements by regulation.
（2）After 10 concrete strength of decompression conical ring beam reaches code requirement, between binding decompression cone prefabricated board 3 it is vertical,
Circumferential direction connection reinforcing bar, template support start to pour the upper layer concrete 5 of decompression cone, and each concreting is along prefabricated board length side
To for 2.4m, after intensity is met the requirements, then carry out second segment and pour, until the upper layer concrete 5 of decompression cone all pours completion
Afterwards, conserved to intensity and met the requirements according to code requirement.
（3）Concrete segmentation pours after 14 template support of vertex of a cone plain concrete, and is conserved to intensity and expire according to code requirement
Foot requires.
（4）Form removal after the upper layer concrete 5 of decompression cone, 14 intensity of vertex of a cone plain concrete reach 100%.
In the above-mentioned prefabricated decompression cone construction method of concrete silo structure：
The prefabricated decompression cone of armored concrete, can construct and be fully completed in storehouse wall 1 in the silo of sliding formwork, including decompression cone is prefabricated
Plate 3 and top blind flange 4 are processed, installed, decompression conical ring beam 10 and the binding of strata suprapyramidale reinforcing bar, concreting, vertex of a cone element coagulation
Soil 14 pours, and the storehouse wall 1 that can also construct is in the silo of sliding formwork to proper height.
Decompression cone prefabricated board 3 uses variable cross-section, and bottom plate is prefabricated, and concrete secondary pours after local later stage installation；It is prefabricated
Concrete top cover board 4, the side number regular polygon equal with piecemeal quantity is prefabricated into according to cone piecemeal quantity, is bored with decompression
Built-in fitting 6 on 3 corresponding face of body prefabricated board, decompression cone prefabricated board 3 is welded into entirety with top blind flange 4 after installation is complete.
Cone prefabricated board 3 is depressurized, it is prefabricated preceding according to Hoisting Program confirmation most unfavorable combination, carry out section check.
Decompression cone prefabricated board 3 is supported in 1 lower inside of silo storehouse wall and protrudes at bearing 2, and the inner side of silo storehouse wall 1 is embedded with
Built-in fitting 6.
Pre-buried hanging ring 9 is connected by the drag-line 7 on snap ring 13 and storehouse wall 1 on decompression cone prefabricated board 3.
Every piece of decompression cone prefabricated board 3 lifts, and in arranging two groups of parallels 12 in storehouse wall 1 on bearing 2, passes through micro hydraulic thousand
3 bottom level of jin top adjustment decompression cone prefabricated board；Pass through two groups of concrete cubes between decompression cone prefabricated board 3 and storehouse wall 1
Block 11 and parallels 12, adjustment storehouse wall 1 and 3 gap of decompression cone prefabricated board；Before depressurizing the lifting of cone prefabricated board 3, bearing in storehouse wall 1
Cement mortar is laid between 2 and concrete cube block 11 and reinforces cone bottom, prevents from sliding.
Cone prefabricated board 3 and positioning annulus 8 are depressurized, by depressurizing 3 top built-in fitting 6 of cone prefabricated board, at first group three
Block plate mounting and adjusting welds afterwards in place, and interim fixation is integrally formed, and all depressurizes after the completion of cone prefabricated board 3 lifts and removes.
Concrete curing, pour completion 24 it is small when it is interior forbid top increase construction loads, it is external immediately after concrete form removal
Surface carries out watering maintenance, and protects concrete surface and hold moistening, and curing time must not be less than 7 days.
Present invention decompression cone uses prefabricated cone lifting construction, and cone is completed in precasting yard, and operation is skilled, constructs
Journey is easy to monitor, and concentrates maintenance to be conducive to improve quality of concrete members；Worker laboring environment improves, and labor intensity reduces, and subtracts
Risk in the input and work progress of few labo r resources；While preform production conserves, carry out bottom storehouse fitter's work,
Project duration can be obviously shortened, improves construction efficiency；The live scaffold of mechanization installation reduction is built to work with template support, applies
Work is efficient and convenient, saves project cost, effectively reduces environmental pollution and construction noise pollution, is conducive to energy-saving.
The foregoing is merely preferably feasible embodiment of the invention, not thereby limit to interest field of the invention,
All equivalence changes made with description of the invention and its accompanying drawing content, are both contained within the interest field of the present invention.
Claims (10)
1. a kind of prefabricated decompression cone construction method of concrete silo structure, it is characterised in that include the following steps：
First, the processing of first stage decompression cone prefabricated components and maintenance：
（1）Pour thickness and be more than 100mm mattess, made according to the design size of decompression cone prefabricated board and top blind flange
Steel form, and template support is completed, ensure that the control of formwork dimensional discrepancy exists（- 5mm, 0）Within；
（2）Reinforcing bar binding and built-in fitting are completed according to drawing, hanging ring banding fixed and proofread built-in fitting, hanging ring and reserving hole
Size and position；
（3）Depressurize the concreting of cone prefabricated components and maintenance, concreting is vibrated uniformly closely knit, is poured every time along plate
Length direction is no more than 3m, pays attention to the position of template, built-in fitting, hanging ring and reserving hole, it is ensured that the machining accuracy of prefabricated components,
Maintenance is to the valid period of standard and reaches design strength；
2nd, preparation before second stage decompression cone prefabricated part hanging：
（1）Suitable drag-line, prefabricated board number consecutively, on prefabricated board are selected according to decompression cone prefabricated board weight and hoisting point position
Mark its longitudinal centre line, it is ensured that every piece of decompression cone prefabricated board aligns with the positioning of bearing, positioning annulus reticule in the wall of storehouse；
（2）Bearing top surface is cleared up, and checks bearing top mark height, flatness, carries out repetition measurement positioning to its top surface absolute altitude, storehouse wall is connected
Built-in fitting absolute altitude carries out repetition measurement and positioning at drag-line position, and welding rod, connects drag-line；
（3）Bottom storehouse equipment is installed and operating platform, storehouse inhaul are tensioned the horizontal annular operation of workbench, adjustment cone and put down
Platform；
3rd, phase III decompression cone prefabricated part hanging：
（1）Backfill compaction in layers is simultaneously laid with 30mm steel plates, and crane is installed in place along storehouse periphery, is depressurized using bikini monolithic
Cone prefabricated board lifts, and the prefabricated plate level of monolithic is lifted to the jack adjusting angle by connecting two lower suspension centres after proper height
Degree, will depressurize cone prefabricated board by drag-line after in place and be connected with storehouse wall；
（2）First group of three pieces of decompression cone prefabricated board is spaced 120 ° of liftings and completes according to the method described above, and lifting positioning annulus is to fixed
Position absolute altitude, adjustment positioning annulus to horizontal level, by Miniature hydraulic jick adjust decompression cone prefabricated board bottom position and
It is horizontal, it is ensured that decompression cone prefabricated board center line is overlapped with bearing mark center line, positioning annulus reticule in the wall of storehouse, tensioning pole wire
Thick stick carries out angle adjustment, it is ensured that decompression cone prefabricated board and horizontal line angle are 60 degree, and horizontal elevation dimension misses in installation process
In ± 1mm, top setting circle ring center control errors can be adjusted in ± 5mm with thin parallels for difference control, after the completion of it is fixed
Circle of position ring is welded with built-in fitting on decompression cone prefabricated board；
（3）After first group of decompression cone prefabricated board installation is fixed, the lifting of remaining each group prefabricated board is carried out according to the method described above, often
120 ° of block plate interval, during lifting along clockwise direction with counterclockwise alternately, complete all decompression cone prefabricated boards and
After top blind flange lifting, decompression cone prefabricated board is welded into entirety with top blind flange；
4th, the binding of fourth stage decompression cone reinforcing bar, concrete secondary are poured and conserved：
（1）Start pouring for concrete, concreting edge decompression conical ring depth of beam after the completion of decompression conical ring beam steel bar colligation
Direction is completed in three times, and is conserved to intensity and met the requirements by regulation；
（2）Decompression conical ring beam concrete strength reach certain requirement, start decompression cone upper strata indulge, circumferential reinforcement binding, decompression cone
Layer concrete segmentation pours on body prefabricated board, and every section of 2.4m formwork supporting plate casting concrete, treats that intensity is met the requirements along its length
Afterwards, start second segment to pour, until after the completion of strata suprapyramidale concrete all pours, conserved to intensity and met according to code requirement
It is required that；
（3）Plain concrete segmentation pours after vertex of a cone template support, and is conserved to intensity and met the requirements according to code requirement；
（4）Form removal after layer concrete, vertex of a cone plain concrete strength reach 100% on decompression cone prefabricated board.
2. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Steel
Reinforced concrete silo depressurizes cone prefabricated board according to silo diameter difference, decompression cone can be divided into 12-36 blocks prefabricated board and one
Block top blind flange.
3. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Steel
The prefabricated decompression cone of reinforced concrete, can construct in being fully completed in the silo of storehouse wall sliding formwork, including decompression cone prefabricated board and top
Portion's cover board processing, installation, decompression conical ring beam and the binding of decompression cone prefabricated board top bars, concrete secondary pour, plain coagulation
The native vertex of a cone pours, and can also construct in the silo of storehouse wall sliding formwork to proper height.
4. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Subtract
Pressure cone prefabricated board uses variable cross-section, and underplate concrete is prefabricated, and concrete secondary pours after local later stage installation；Precast concrete
Top blind flange, the side number regular polygon equal with piecemeal quantity is prefabricated into according to cone piecemeal quantity, prefabricated with decompression cone
Pre-embedded steel slab on the corresponding face of plate, decompression cone prefabricated board is welded into entirety with top blind flange after installation is complete.
5. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Subtract
Cone prefabricated board is pressed, it is prefabricated preceding according to Hoisting Program confirmation most unfavorable combination, carry out section check.
6. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Subtract
Pressure cone prefabricated board is supported in silo storehouse wall lower inside and protrudes at bearing, and built-in fitting is embedded with the inside of the wall of silo storehouse.
7. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Subtract
Pre-buried hanging ring is connected by snap ring with the drag-line on the wall of storehouse on pressure cone prefabricated board.
8. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Often
Block decompression cone prefabricated board lifting, in arranging two groups of parallels in the wall of storehouse on bearing, decompression cone is adjusted by Miniature hydraulic jick
Body prefabricated board bottom level；Depressurize between cone prefabricated board and storehouse wall by two groups of concrete cube blocks and parallels, adjust storehouse wall
With the prefabricated sheet separation of decompression cone；Before depressurizing the lifting of cone prefabricated board, water is laid between bearing and concrete cube block in the wall of storehouse
Cement mortar reinforces cone bottom, prevents from sliding.
9. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：Subtract
Cone prefabricated board and positioning annulus are pressed, it is prefabricated in first group of three pieces of decompression cone by depressurizing built-in fitting at the top of cone prefabricated board
Plate mounting and adjusting welds afterwards in place, and interim fixation is integrally formed, and all depressurizes after the completion of cone prefabricated board lifts and removes.
10. the prefabricated decompression cone construction method of concrete silo structure according to claim 1, it is characterised in that：
Concrete curing, pour completion 24 it is small when it is interior forbid top increase construction loads, after concrete form removal immediately to outer surface carry out
Watering maintenance, and protect concrete surface and hold moistening, curing time must not be less than 7 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108590299A (en) * | 2018-05-16 | 2018-09-28 | 五冶集团上海有限公司 | Reinforced concrete silo centrum is without split bolt template system |
| CN111236720A (en) * | 2020-01-20 | 2020-06-05 | 中材海外工程有限公司 | Construction method for pouring silo decompression cone without construction joint |
| CN111424941A (en) * | 2020-04-27 | 2020-07-17 | 五冶集团上海有限公司 | Construction method for high and large vertebral bodies in silo |
| CN112727093A (en) * | 2020-12-28 | 2021-04-30 | 中材建设有限公司 | Climbing construction method for constructing large-span high-rise building |
| CN112942829A (en) * | 2021-02-04 | 2021-06-11 | 中材建设有限公司 | Cement decompression awl template is from ann dismouting equipment |
| CN112942567A (en) * | 2021-02-04 | 2021-06-11 | 中材建设有限公司 | Construction method of self-mounting and dismounting equipment of cement pressure reducing cone template |
| CN114482552A (en) * | 2022-02-17 | 2022-05-13 | 成都建筑材料工业设计研究院有限公司 | Concrete surface wear-resistant layer construction method for solid material storage and conveying structure |
| CN115450478A (en) * | 2022-09-21 | 2022-12-09 | 中国中材国际工程股份有限公司 | Partially-assembled multi-compartment silo and preparation method thereof |
| CN115808203A (en) * | 2022-11-24 | 2023-03-17 | 哈尔滨工业大学 | Protection device for pre-buried sensor in concrete and installation method |
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|---|---|---|---|---|
| CN108590299A (en) * | 2018-05-16 | 2018-09-28 | 五冶集团上海有限公司 | Reinforced concrete silo centrum is without split bolt template system |
| CN108590299B (en) * | 2018-05-16 | 2020-09-11 | 五冶集团上海有限公司 | Reinforced concrete silo centrum does not have split bolt template system |
| CN111236720A (en) * | 2020-01-20 | 2020-06-05 | 中材海外工程有限公司 | Construction method for pouring silo decompression cone without construction joint |
| CN111236720B (en) * | 2020-01-20 | 2022-06-17 | 中国中材海外科技发展有限公司 | Construction method for pouring silo decompression cone without construction joint |
| CN111424941A (en) * | 2020-04-27 | 2020-07-17 | 五冶集团上海有限公司 | Construction method for high and large vertebral bodies in silo |
| CN112727093A (en) * | 2020-12-28 | 2021-04-30 | 中材建设有限公司 | Climbing construction method for constructing large-span high-rise building |
| CN112942829A (en) * | 2021-02-04 | 2021-06-11 | 中材建设有限公司 | Cement decompression awl template is from ann dismouting equipment |
| CN112942567A (en) * | 2021-02-04 | 2021-06-11 | 中材建设有限公司 | Construction method of self-mounting and dismounting equipment of cement pressure reducing cone template |
| CN114482552A (en) * | 2022-02-17 | 2022-05-13 | 成都建筑材料工业设计研究院有限公司 | Concrete surface wear-resistant layer construction method for solid material storage and conveying structure |
| CN115450478A (en) * | 2022-09-21 | 2022-12-09 | 中国中材国际工程股份有限公司 | Partially-assembled multi-compartment silo and preparation method thereof |
| CN115808203A (en) * | 2022-11-24 | 2023-03-17 | 哈尔滨工业大学 | Protection device for pre-buried sensor in concrete and installation method |
| CN115808203B (en) * | 2022-11-24 | 2023-05-23 | 哈尔滨工业大学 | Protection device for embedded sensor in concrete and installation method |
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Application publication date: 20180515 |