CN113833259A - Limestone warehouse engineering slip form structure and special construction scheme thereof - Google Patents
Limestone warehouse engineering slip form structure and special construction scheme thereof Download PDFInfo
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- CN113833259A CN113833259A CN202110982441.6A CN202110982441A CN113833259A CN 113833259 A CN113833259 A CN 113833259A CN 202110982441 A CN202110982441 A CN 202110982441A CN 113833259 A CN113833259 A CN 113833259A
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- template
- sliding
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
- E04G11/24—Construction of lifting jacks or climbing rods for sliding forms
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a special construction scheme of a limestone warehouse engineering slip form, which comprises the following steps: 1) preparation work before slip film construction: removing impurities, carrying out positioning marking and checking equipment conditions; 2) assembling an operation platform and a sliding device: sequentially assembling a central drum ring, a lifting frame, a radiation beam and a pull rod, then installing a template, and then installing a hydraulic system and an electric power system; 3) sliding the cylinder body up: and (3) pouring during primary sliding, solidifying a casting to lift 1-2 strokes, installing an inner foot-hanging frame and an outer foot-hanging frame according to the sliding speed of V ═ H-a)/t, installing an outer fence and a hanging safety net, and then circularly sliding and lifting until the project is finished. According to the limestone silo engineering slip form structure and the special construction scheme thereof, the cleaning and inspection are carried out, the scheme is refined, the template can be prevented from leaking slurry, the slurry hanging phenomenon on the outer wall of the barrel body is avoided, the concrete can be prevented from being pulled to crack due to overlarge friction resistance of the concrete to the template, and the slip form construction is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of limestone warehouse engineering slip forms, in particular to a limestone warehouse engineering slip form structure and a special construction scheme thereof.
Background
The slipform is assembled by a whole set of hydraulic slipform devices (a template, a surrounding ring, a lifting frame, an operating platform, a supporting rod, a hydraulic jack and the like) on the ground (or at a certain elevation) according to the plane shape of a building. The hydraulic jack is used for climbing on the supporting rod to drive the lifting frame, the template and the operating platform to ascend together.
The slip form construction is one of construction methods in the field of buildings, safety accidents are easily caused due to nonstandard construction in the slip form construction process, and a construction scheme needs to be refined so as to improve the construction safety of the slip form construction.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a limestone warehouse engineering slip form structure and a special construction scheme thereof, has the advantages of safe and reliable construction and the like, and solves the problem of limestone warehouse engineering slip form construction danger.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: limestone base engineering slipform structure and special construction scheme thereof, including central drum circle and hoisting frame, central drum circles and installs the radiation beam, and interior scaffold frame that hangs is installed to the bottom of radiation beam, and one side that central drum circle was kept away from to interior scaffold frame is provided with outer scaffold frame, all installs the template subassembly on outer scaffold frame and the interior scaffold frame for form the pouring space, central drum circle and interior hang and consolidate the subassembly between the scaffold frame for hang the scaffold frame in consolidating, install supporting component on the hoisting frame for adjust the position of template subassembly.
Further, two the template subassembly is all including installing the steel form in the radiation beam bottom and installing the template reinforcing frame on the steel form, and wherein two steel forms surround and form the pouring space.
Further, the reinforcing component comprises a diagonal draw bar and a turn buckle connected with the diagonal draw bar in a threaded manner.
Further, the support assembly includes a jack and a support rod mounted on the jack.
Furthermore, all install the safety net on outer scaffold frame and the interior scaffold frame of hanging, and install the railing on the outer scaffold frame.
The invention also provides a special construction scheme of the limestone warehouse engineering slip form, which comprises the following steps:
1) preparation work before slip film construction: removing impurities, carrying out positioning marking and checking equipment conditions;
2) assembling an operation platform and a sliding device: sequentially assembling a central drum ring, a lifting frame, a radiation beam and a pull rod, then installing a template, and then installing a hydraulic system and an electric power system;
3) sliding the cylinder body up: and (3) pouring during primary sliding, solidifying a casting to lift 1-2 strokes, installing an inner foot-hanging frame and an outer foot-hanging frame according to the sliding speed of V ═ H-a)/t, installing an outer fence and a hanging safety net, and then circularly sliding and lifting until the project is finished.
Further, before assembly in step 2), the specification and quality of each part are checked in detail according to the assembly drawing to check the number.
Further, the hydraulic equipment system in the step 2) adopts a grading parallel oil way.
Further, the slip starting point of the project in the step 3) is ^ -1.000m, the pouring height is 2/3 of the height of the template, and the initial rise can be carried out after the pouring and the smashing are controlled within 2 hours.
Further, in the sliding and lifting process in the step 3), the platform must keep the lifting difference between the jacks to be checked and adjusted at any time, and the lower enclosure of the outer template needs to be checked frequently.
(III) advantageous effects
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
according to the limestone silo engineering slip form structure and the special construction scheme thereof, the cleaning and inspection are carried out, the scheme is refined, the template can be prevented from leaking slurry, the slurry hanging phenomenon on the outer wall of the barrel body is avoided, the concrete can be prevented from being pulled to crack due to overlarge friction resistance of the concrete to the template, and the slip form construction is safer and more reliable.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1 central drum circle, 2 radiant beams, 3 diagonal draw bars, 4 turnbuckle bolts, 5 hoisting frames, 6 jacks, 7 support bars, 8 external scaffolds, 9 railings, 10 safety nets, 11 steel templates, 12 template reinforcing frames and 13 internal hanging scaffolds.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the limestone silo engineering slip-form structure in the embodiment includes a central drum ring 1 and a lifting frame 5, the central drum ring 1 is used for hanging and hooking, a radiation beam 2 is detachably connected to the central drum ring 1, the lifting frame 5 is erected at the top of the radiation beam 2, an internal scaffold 13 is detachably connected to the bottom of the radiation beam 2, an external scaffold 8 is arranged on one side of the internal scaffold 13 away from the central drum ring 1, both the external scaffold 8 and the internal scaffold 13 are detachably connected with formwork assemblies for forming a casting space, a reinforcing assembly is arranged between the central drum ring 1 and the internal scaffold 13, be used for consolidating interior scaffold 13 of hanging, make interior scaffold 13 of hanging have better stability, guarantee construction safety, can dismantle on the hoisting frame 5 and be connected with supporting component for adjust the position of template subassembly, wherein can dismantle to connect and adopt fastener and bolt fastening.
The two formwork assemblies in this embodiment each include a steel formwork 11 detachably connected to the bottom of the radiation beam 2 and a formwork reinforcing frame 12 detachably connected to the steel formwork 11, wherein the two steel formworks 11 surround to form a casting space.
The reinforcing component in the embodiment comprises a diagonal draw bar 3 and a turn buckle 4 in threaded connection with the diagonal draw bar 3.
In addition, the supporting component in this embodiment includes jack 6 and can dismantle bracing piece 7 of connection on jack 6, and all can dismantle on outer scaffold 8 and the interior scaffold 13 and be connected with safety net 10, and can dismantle on outer scaffold 8 and be connected with railing 9.
The special construction scheme for the limestone warehouse engineering slip form is characterized by comprising the following steps of:
1) preparation work before slip film construction:
1.1, removing sundries, specifically speaking, roughening the surface of the concrete at the slip point, and cleaning loose concrete and sundries on the surface.
And 1.2, carrying out positioning marking, specifically describing to determine the positions of the central point, the elastic line and the lifting frame, the inner and outer peripheral rings and the radiation beam.
1.3, equipment conditions are checked, specifically, the oil pipe is subjected to a pressure test one by one and is cleaned, and oil leakage of an oil pipe joint is avoided; the jacks are used for stroke inspection one by one to ensure that the strokes are at the same elevation; the hydraulic control console should be fully checked in advance to make a pressure test run.
2) Assembling an operation platform and a sliding device: sequentially assembling a central drum ring, a lifting frame, a radiation beam and a pull rod, then installing a template, and then installing a hydraulic system and an electric power system;
3) sliding the cylinder body up: and (3) pouring during primary sliding, solidifying a casting to lift 1-2 strokes, installing an inner foot-hanging frame and an outer foot-hanging frame according to the sliding speed of V ═ H-a)/t, installing an outer fence and a hanging safety net, and then circularly sliding and lifting until the project is finished.
In the scheme, before assembly in step 2), specification and quality of each part are checked in detail, proofreading and numbering are carried out according to an assembly drawing, a hydraulic equipment system in step 2) adopts graded parallel oil ways, the slip point of the project in step 3) is ^ -1.000m, the pouring height is 2/3 of the height of a template, initial lifting can be carried out after pouring and tamping are finished within 2 hours, a platform in the sliding lifting process in step 3) must keep lifting difference between jacks to be checked and adjusted at any time, and a lower enclosure of an outer template is often checked.
In addition, the glide speed: grasping the interval time and speed of lifting according to the air temperature is the key for ensuring that the concrete sliding out of the template does not flow or slump and the surface is smooth, and the control and calculation basis of the sliding speed is as follows:
V＝(H-h-a)/t
in the formula: v one template slide-up speed (m/h)
H one template height (m)
h each pouring layer (m), 0.3m below 15m and 0.5m above 15m
a, taking the distance from the surface of the poured concrete to the upper opening of the template to be 0.1m
t-time (h) required for the concrete to reach the demolding strength from the pouring in place
In the sliding and lifting process, the platform must keep the lifting difference between the jacks to be checked and adjusted at any time, and the lower enclosure of the outer template is checked frequently to prevent the template from leaking slurry and avoid the slurry hanging phenomenon on the outer wall of the cylinder body.
And, in this scheme smooth rising, stack shell center and straightness control that hangs down: the engineering adopts a line hammer method: the method is characterized in that a 25 kg-weight plumb bob is arranged at the center of an operation platform, the plumb bob is hung at the lower part of the platform by a thin steel wire, a control pile is arranged at the center in a barrel body corresponding to the lower part of the plumb bob, a pulley and a pay-off device are arranged at the upper end of the steel wire of the plumb bob, the steel wire is timely lengthened along with the sliding of a template, the observation and the recording are carried out once when the height of the template is lifted by 300mm, the track of each point is continuously recorded, and the correction is timely adjusted when the problem is found.
In addition, in the scheme of the steel bar engineering, steel bars are manufactured and listed according to the size required by the design of a drawing in advance, the size, the number, the model and the used position are marked, and the steel bars are stacked according to the marked position of a construction site plane layout drawing; binding of steel bars: when the lap joint is adopted, the lap joint length meets the design requirement and is correspondingly staggered, the vertical ribs need to slip downwards during binding, and the joints need to be staggered according to the design requirement of a drawing; all steel bar hooks are back to the formwork, and joints are firmly bound with the vertical bars when the diameter of the steel bar hooks is larger than or equal to 12 so as to prevent the steel bar hooks from popping out of the wall after demolding: after each pouring layer of concrete is poured, at least one bound transverse steel bar is arranged above the surface of the concrete.
In the concrete engineering of the scheme, a stirring station is erected on site for automatically stirring concrete; the cylinder wall is conveyed to an operation platform through a tower crane and automatically slides into the template through the pump pipe, the pump pipe at the wall section of the reservoir ascends along with the foot rest of a user and enters the steel funnel with the platform, then the pump pipe is conveyed into the template through the trolley, the material distribution quantity is strictly controlled, the principle requirement of layering, circle-crossing and uniform pouring is strictly carried out during concrete pouring, and the concrete surface poured at each layer is on the same horizontal plane. The pouring height of each layer is 300-500mm, the pouring time of each layer is not longer than the initial setting time of the concrete, the supporting rod, the reinforcing steel bar, the template, the embedded part and the like are not contacted during vibration, the concrete on two sides is balanced and poured when the hole is reserved by vibration, the extrusion is prevented, the quality inspection and the surface protoplasm modification are timely carried out after the concrete is demoulded, the maintenance of the engineering concrete is coated by the maintenance liquid, a conjunctiva is formed on the surface of the concrete, and the self-maintenance effect of the concrete is maintained. If the construction of the cylinder wall enters a high-temperature period, the concrete retarder specified in a concrete mixing ratio notice provided by a detection department can be properly added according to the actual situation on site.
Supplementary explanation, the preventive measures, the time interval of the sliding lifting are influenced by factors such as air temperature, cement variety, admixture and the like, but the template is generally lifted once every 1 hour or so; after each sliding lift, a specially-assigned person is required to clean the template; the template is frequently checked, and abnormal conditions such as inverted cone and the like need to be processed in time; the template is properly stored, and the surface flatness of the template is kept; controlling the lifting height, generally preferably 250-300mm, and adding retarder when the temperature is too high or the feeding speed is too slow; the strength of the concrete demoulding is controlled to be 0.2-0.4Mpa, so as to prevent the concrete from being pulled apart due to overlarge friction resistance of the concrete to the template.
The working principle of the above embodiment is as follows:
through carrying out the clearance inspection, refine the thin rule of scheme, can prevent that the template from leaking thick liquid, avoid the stack shell outer wall to appear hanging thick liquid phenomenon, and can prevent that the concrete from too big and drawing apart the concrete to template frictional resistance, make slip form construction safe and reliable more.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Limestone base engineering slipform structure, including central drum circle (1) and hoisting frame (5), its characterized in that: install radiation beam (2) on central drum circle (1), hang scaffold (13) in installing the bottom of radiation beam (2), one side of keeping away from central drum circle (1) of interior scaffold (13) is provided with outer scaffold (8), all installs template component on outer scaffold (8) and the interior scaffold (13) of hanging for form the pouring space, central drum circle (1) with hang between scaffold (13) and consolidate the subassembly in for hang scaffold (13) in consolidating, install supporting component on hoisting frame (5) for adjust template component's position.
2. The limestone silo engineering slipform structure and its specific construction scheme of claim 1 characterized in that, two of the formwork assemblies each include a steel formwork (11) installed at the bottom of the radiant beam (2) and a formwork reinforcement frame (12) installed on the steel formwork (11), wherein the two steel formworks (11) surround to form a casting space.
3. The limestone silo engineering slip-form structure and the special construction scheme thereof according to claim 1 are characterized in that: the reinforcing component comprises an inclined pull rod (3) and a turn buckle (4) in threaded connection with the inclined pull rod (3).
4. The limestone silo engineering slip-form structure and the special construction scheme thereof according to claim 1 are characterized in that: the supporting component comprises a jack (6) and a supporting rod (7) arranged on the jack (6).
5. The limestone silo engineering slip-form structure and the special construction scheme thereof according to claim 1 are characterized in that: all install safety net (10) on outer scaffold frame (8) and the interior scaffold frame (13), and install railing (9) on outer scaffold frame (8).
6. The special construction scheme for the limestone warehouse engineering slip form is characterized by comprising the following steps of:
1) preparation work before slip film construction: removing impurities, carrying out positioning marking and checking equipment conditions;
2) assembling an operation platform and a sliding device: sequentially assembling a central drum ring, a lifting frame, a radiation beam and a pull rod, then installing a template, and then installing a hydraulic system and an electric power system;
3) sliding the cylinder body up: and (3) pouring during primary sliding, solidifying a casting to lift 1-2 strokes, installing an inner foot-hanging frame and an outer foot-hanging frame according to the sliding speed of V ═ H-a)/t, installing an outer fence and a hanging safety net, and then circularly sliding and lifting until the project is finished.
7. The limestone base project slip form special construction scheme of claim 6, characterized in that the specification and quality of each part are checked and numbered in detail according to an assembly drawing before assembly in the step 2).
8. The limestone base project slip form special construction scheme of claim 6, characterized in that in step 2) the hydraulic equipment system adopts graded parallel oil circuit.
9. The limestone base project slip-form special construction scheme of claim 6, wherein the slip starting point of the project in the step 3) is ^ -1.000m, the pouring height is 2/3 of the height of the template, and the primary lifting can be carried out after the pouring and the smashing are controlled within 2 hours.
10. The construction scheme special for the limestone warehouse engineering slip form according to claim 6, wherein in the sliding and lifting process in the step 3), the platform must keep the lifting difference between the jacks to be checked and adjusted at any time, and the lower enclosure of the outer template needs to be checked frequently.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982441.6A CN113833259A (en) | 2021-08-25 | 2021-08-25 | Limestone warehouse engineering slip form structure and special construction scheme thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982441.6A CN113833259A (en) | 2021-08-25 | 2021-08-25 | Limestone warehouse engineering slip form structure and special construction scheme thereof |
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| CN113833259A true CN113833259A (en) | 2021-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162712A (en) * | 2022-07-29 | 2022-10-11 | 滕州建工建设集团有限公司 | Urea prilling tower slip form construction platform |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202745358U (en) * | 2012-04-16 | 2013-02-20 | 中国十九冶集团有限公司 | Lifting device for chimney slip form construction |
| CN203654702U (en) * | 2013-12-06 | 2014-06-18 | 浙江省建工集团有限责任公司 | Operating platform for construction of reinforced concrete chimney |
| CN108019076A (en) * | 2017-12-28 | 2018-05-11 | 河南宏程工程建设有限责任公司 | Large-size rebar concrete silo construction method and the device for conical shell construction |
-
2021
- 2021-08-25 CN CN202110982441.6A patent/CN113833259A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202745358U (en) * | 2012-04-16 | 2013-02-20 | 中国十九冶集团有限公司 | Lifting device for chimney slip form construction |
| CN203654702U (en) * | 2013-12-06 | 2014-06-18 | 浙江省建工集团有限责任公司 | Operating platform for construction of reinforced concrete chimney |
| CN108019076A (en) * | 2017-12-28 | 2018-05-11 | 河南宏程工程建设有限责任公司 | Large-size rebar concrete silo construction method and the device for conical shell construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162712A (en) * | 2022-07-29 | 2022-10-11 | 滕州建工建设集团有限公司 | Urea prilling tower slip form construction platform |
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