CN116464274A - Inner template system of cylindrical structure and construction method thereof - Google Patents

Inner template system of cylindrical structure and construction method thereof Download PDF

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Publication number
CN116464274A
CN116464274A CN202310727581.8A CN202310727581A CN116464274A CN 116464274 A CN116464274 A CN 116464274A CN 202310727581 A CN202310727581 A CN 202310727581A CN 116464274 A CN116464274 A CN 116464274A
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CN
China
Prior art keywords
template
sleeve
support column
tubular structure
telescopic rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310727581.8A
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Chinese (zh)
Other versions
CN116464274B (en
Inventor
朱荣军
郑冠雨
尤雪春
汪思满
冷喆祥
董建曦
崔旭阳
罗甲舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Construction No 7 Group Co Ltd
Original Assignee
Shanghai Construction No 7 Group Co Ltd
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Filing date
Publication date
Application filed by Shanghai Construction No 7 Group Co Ltd filed Critical Shanghai Construction No 7 Group Co Ltd
Priority to CN202310727581.8A priority Critical patent/CN116464274B/en
Publication of CN116464274A publication Critical patent/CN116464274A/en
Application granted granted Critical
Publication of CN116464274B publication Critical patent/CN116464274B/en
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Classifications

    • 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
    • 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
    • E04G11/062—Forms for curved walls
    • 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
    • E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
    • 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
    • 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
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • 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
    • E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses an inner template system of a cylindrical structure and a construction method thereof, wherein the inner template system comprises a support column, a sleeve, a horizontal support structure and an annular template; the support column is vertical to be set up in tubular structure's axle center department, the sleeve cover is established on the support column, sets up a plurality of horizontal bearing structures along circumferencial direction interval on the sleeve outer wall, and horizontal bearing structure's flexible end is connected with annular template. The inner template system is arranged at the axle center of the tubular structure and is provided with a support column, a sleeve is arranged on the support column, and a plurality of horizontal support structures are arranged on the outer wall of the sleeve so as to support the annular template, so that the inner template of the tubular structure is formed, a hollow structure is formed between the inner template and the outer template of the tubular structure, and the cast tubular structure can completely avoid a radiation cold bridge caused by the split bolts due to the fact that the split bolts are not arranged between the inner template and the outer template, so that the quality and the radiation protection effect of the tubular structure are improved.

Description

Inner template system of cylindrical structure and construction method thereof
Technical Field
The invention relates to an inner template system of a tubular structure and a construction method thereof, belonging to the technical field of building construction templates.
Background
In building construction, sometimes, concrete pouring problems of cylindrical building structures are involved, for example, in order to shield alpha, beta, gamma rays and neutron radiation in a nuclear power reactor cavity, a shielding structure is usually arranged in the reactor cavity, and most of the shielding structures are cylindrical structures formed by ultra-thick concrete walls and special shielding materials.
At present, the construction of a shielding structure generally comprises the steps of firstly constructing an outer cylinder, then taking the inner wall of the outer cylinder as an outer mold of the inner cylinder, adopting a split bolt to fix a round wood template system on the outer cylinder as an inner mold of the inner cylinder, forming an inner cylinder pouring cavity between the round wood template system and the inner wall of the outer cylinder, and then pouring serpentine concrete into the inner cylinder pouring cavity. In the construction process, the setting of split bolts easily causes radiation cold bridge, reduces shielding inner tube construction quality.
Disclosure of Invention
Aiming at the problems that a radiation cold bridge is easy to cause and the construction quality of a shielding inner cylinder is reduced due to the arrangement of split bolts, the invention provides an inner template system with a cylindrical structure and a construction method thereof.
In order to solve the technical problems, the invention comprises the following technical scheme:
an inner formwork system of a cylindrical structure, the inner formwork system comprising support columns, sleeves, a horizontal support structure and an annular formwork;
the support column is vertical to be set up, the sleeve cover is established on the support column, sets up a plurality of horizontal bearing structures along circumferencial direction interval on the sleeve outer wall, and horizontal bearing structure's flexible end is connected with annular template.
Further, the annular template comprises a plurality of first templates and second templates which are arranged at intervals, the horizontal supporting structure comprises a plurality of first telescopic rods and second telescopic rods which are arranged at intervals, the telescopic ends of the first telescopic rods are connected with the back of the first templates, and the telescopic ends of the second telescopic rods are connected with the back of the second templates;
the side of the first template is provided with a step-shaped groove in the direction facing the sleeve, and the side of the second template is provided with a step-shaped boss matched with the step-shaped groove in the direction far away from the sleeve;
the first telescopic rod and the second telescopic rod are controlled to retract, so that the annular template can be transformed into a double-layer structure with the first template on the outer layer and the second template on the inner layer; the first telescopic rod and the second telescopic rod are controlled to stretch out in sequence, the stepped boss can be matched with the stepped groove, and the first template and the second template are spliced in sequence to form the annular template.
Further, a bottom plate is arranged below the cylindrical structure;
the bottom of the support column is provided with a base, and the base comprises a connecting plate which is horizontally arranged and embedded bars which are arranged below the connecting plate; the embedded bars are embedded in the bottom plate, and the connecting plate is horizontally arranged at the axis of the cylindrical structure;
the bottom of the support column is provided with a connecting lug plate, and the connecting lug plate is fixedly connected with the base through bolts.
Further, the inner template system further comprises a lifting device arranged on the support column, and the sleeve can slide up and down along the support column through the lifting device.
Further, the lifting device comprises a winch fixedly arranged on the top wall of the support column and a pull rope wound on the winch; the two windlass are symmetrically arranged along the two sides of the center of the top of the support column, and one end of the pull rope, which is far away from the windlass, is fixed on the top wall of the sleeve.
Further, an adjusting and limiting mechanism is further arranged at the top of the supporting column, and comprises a first supporting plate, a second supporting plate, a winding drum, a rotating shaft, a torsion spring, a ratchet wheel, a pawl, a mounting plate, a guiding telescopic rod and an elastic sheet;
the first support plate is arranged at the top of the support column, a winding drum is rotatably arranged on the first support plate, a rotating shaft is coaxially arranged on the winding drum in a penetrating mode, and the rotating shaft is rotatably supported on the first support plate; the ratchet wheel is fixedly sleeved on the rotating shaft of the winding drum;
the winding drum is wound with a connecting rope which extends downwards to slide through the sleeve, through holes for the corresponding connecting ropes to slide through are formed in the two opposite sides of the sleeve, and a limiting block is fixedly connected to one end, away from the winding drum, of the connecting rope;
the torsion spring is movably sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the side wall of the winding drum, the other end of the torsion spring is fixedly connected to the first support plate, and the torsion spring is used for driving the winding drum to rotate and wind up the connecting rope;
the second extension board sets up in the support column top, and the top and the second extension board of direction telescopic link are fixed, and the bottom is provided with the mounting panel, and the articulated pawl that is provided with on the mounting panel, the one end and the mounting panel of pawl are articulated to be set up, and the other end cooperatees with the ratchet, still is provided with the elastic piece between pawl and the mounting panel, and the elastic piece is used for promoting the pawl and rotates towards the direction that is close to the ratchet, and the pawl is used for restricting ratchet unidirectional rotation.
Further, the adjusting and limiting mechanism further comprises a spring, a magnet, an iron block, an adjusting rope and a push rod;
the spring is movably sleeved on the guide telescopic rod, two ends of the spring respectively abut against the second support plate and the mounting plate, and the spring is used for pushing the mounting plate to drive the pawl to slide towards the direction close to the ratchet wheel;
the iron block is relatively fixed on the mounting plate, the magnet is fixed on the top wall of the second support plate, the magnet corresponds to the iron block, and when the magnet and the iron block are adsorbed and fixed, the pawl is separated from the ratchet wheel;
the top end of the adjusting rope is fixed on the mounting plate, the bottom end of the adjusting rope is fixedly connected to the top wall of the sleeve, and when the sleeve slides downwards to a tensioning state of the adjusting rope, the mounting plate is pulled to move downwards, and the pawl is meshed with the ratchet wheel;
the push rod is fixed on the sleeve roof, and when the sleeve upwards slides to push rod and mounting panel butt, can make the mounting panel upwards move together, makes pawl and ratchet separation.
Correspondingly, the application also provides a construction method of the cylindrical structure, which comprises the following steps:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
setting an inner template system of the tubular structure, wherein the inner template system of the tubular structure comprises a support column, a sleeve, a horizontal support structure, an annular template and a support rod, wherein the support column is arranged at the axis of the tubular structure;
pouring concrete between an outer template of the tubular structure and an inner annular template to form the tubular structure;
and step four, dismantling the inner template system of the tubular structure after the strength of the concrete of the tubular structure meets the requirement.
Correspondingly, the application also provides another construction method of the cylindrical structure, which comprises the following steps:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
setting an inner template system of the tubular structure, wherein the inner template system specifically comprises a support column arranged at the axis of the tubular structure, fixing a sleeve on the support column, arranging a first telescopic rod and a second telescopic rod on the sleeve at intervals, firstly installing a second template at the end part of the second telescopic rod, then enabling the second telescopic rod to shrink, and then installing a first template at the end part of the first telescopic rod to form a double-layer structure with the first template outside and the second template inside;
step three, enabling the first telescopic rod to stretch and enable the first template to reach a preset position, enabling the second telescopic rod to stretch and enable the second template to reach a preset position, enabling the stepped boss to be matched with the stepped groove, and sequentially splicing the first template and the second template to form an annular template;
pouring concrete between the outer template of the tubular structure and the annular template inside to form the tubular structure;
and fifthly, after the strength of the concrete of the cylindrical structure meets the requirement, the second telescopic rod is contracted and drives the second template to move towards the sleeve direction, and then the first telescopic rod is contracted and drives the first template to move towards the sleeve direction, so that the demolding is completed and a double-layer structure with the first template outside and the second template inside is formed.
Further, the inner template system further comprises a lifting device arranged on the support column, and the sleeve can slide up and down along the support column through the lifting device;
the fifth step further comprises:
step six, lifting the sleeve by a lifting device to enable the first template and the second template to move upwards to the casting height of the previous layer; then repeating the third to fifth steps, and pouring concrete with a cylindrical structure in layers;
and step seven, removing the inner template system of the tubular structure after the top layer of concrete of the tubular structure is poured and the strength of the concrete meets the requirement.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technical scheme:
(1) The annular template is arranged on the support column, so that an inner cylinder pouring cavity is formed between the annular template and the outer template of the cylindrical structure, and the annular template is not required to be fixed through the split bolts, so that a radiation cold bridge caused by the split bolts is avoided as much as possible, and the construction quality of the cylindrical structure is guaranteed;
(2) The annular template comprises a plurality of first templates and second templates which are arranged at intervals, the horizontal supporting structure comprises a plurality of first telescopic rods and second telescopic rods which are arranged at intervals, when the first templates are installed with the second templates, the first telescopic rods and the second telescopic rods are in a contracted state, and a double-layer structure of the first templates on the outer layer and the second templates on the inner layer is formed, so that the horizontal supporting structure can adapt to the construction environment in a narrow space; the first template and the second template can be spliced into the annular template only by controlling the telescopic lengths of the first telescopic rod and the second telescopic rod, so that the automatic template removing work of the tubular structure can be realized, and the construction efficiency is improved;
(3) The sleeve is driven by the lifting device to drive the annular template to slide on the support column, so that the sectional pouring of the cylindrical structure can be realized, and the construction quality of the cylindrical structure is further ensured;
(4) Through setting up regulation stop gear, can accurate control annular form's height, can also prevent that annular form from falling at the promotion in-process, also can promote in place the back at annular form, bear annular form's vertical load through regulation stop gear, improve security and energy saving.
Drawings
FIG. 1 is a schematic diagram of an inner form system of a tubular structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is a cut-away view of a sleeve;
fig. 4 is an enlarged view of region B in fig. 3.
The labels in the figures are as follows:
10-supporting columns; 11-connecting an ear plate;
20-sleeve; 21-a through hole;
30-a horizontal support structure; 31-a first telescopic rod; 32-a second telescopic rod;
40-annular templates; 41-a first template; 42-a second template;
50-a base; 51-connecting plates; 52-embedding reinforcing steel bars; 53-high-strength bolts;
60-lifting device; 61-a winch; 62-pulling rope;
70-adjusting a limiting mechanism; 701-a first support plate; 702-a second support plate; 703-a spool; 704-a rotating shaft; 705-torsion spring; 706-connecting a rope; 707-limiting blocks; 708-a ratchet; 709-pawl; 710-mounting plate; 711-guiding telescopic rod; 712-elastic sheet; 713-springs; 714-magnet; 715-iron block; 716-adjusting the rope; 717—a pushrod; 718-graduation marks.
Description of the embodiments
The invention provides an inner template system with a cylindrical structure and a construction method thereof, which are further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Example 1
As shown in fig. 1, the inner form system of a cylindrical structure provided in this embodiment includes a support column 10, a sleeve 20, a horizontal support structure 30, and an annular form 40. The support column 10 is vertically arranged at the axis of the cylindrical structure, the sleeve 20 is sleeved on the support column 10, a plurality of horizontal support structures 30 are arranged on the outer wall of the sleeve 20 along the circumferential direction at intervals, and the telescopic ends of the horizontal support structures 30 are connected with the annular templates 40.
According to the inner template system of the tubular structure, the sleeve 20 is arranged on the support column 10, the plurality of horizontal support structures 30 are arranged on the outer wall of the sleeve 20 along the circumferential direction, so that the annular template 40 is supported, the inner template of the tubular structure is formed, a hollow structure is formed between the inner template and the outer template of the tubular structure, no split bolt is arranged between the inner template and the outer template, and the radiation cold bridge caused by the split bolt can be completely avoided by pouring the formed tubular structure, so that the quality and the radiation protection effect of the tubular structure are improved.
Further, as shown in fig. 1, a base 50 is provided at the bottom of the support column 10, a radiation-proof bottom plate is provided below the tubular structure, the base 50 includes a connecting plate 51 horizontally provided, and an embedded steel bar 52 provided below the connecting plate 51, and when the bottom plate is poured, the base 50 is fixed in advance, so that the base 50 is located at the axis of the tubular structure. The bottom of the support column 10 is provided with a connecting lug plate 11, and the connecting lug plate 11 is fixedly connected with the base 50 through a high-strength bolt 53, so that the support column 10 is fixed on a previously poured bottom plate. The installation efficiency and the safety of the support column 10 can be improved by providing the base 50.
The embodiment also provides a construction method of the tubular structure, which adopts the inner template system for construction, and comprises the following steps:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
step two, arranging a support column 10 at the axis of the tubular structure, fixing a sleeve 20 on the support column 10, arranging a horizontal support structure 30 on the sleeve 20, arranging an annular template 40, and fixedly connecting the end part of the horizontal support structure 30 with the annular template 40 so as to form an inner template system of the tubular structure;
pouring concrete between the outer template of the tubular structure and the inner annular template 40 to form the tubular structure;
and step four, dismantling the inner template system of the tubular structure after the strength of the concrete of the tubular structure meets the requirement.
Example two
The second embodiment is to further describe the internal template system based on the first embodiment.
The annular template 40 is used as an inner template of a cylindrical structure, and the installation and the disassembly of the annular template 40 are difficult particularly because of the limited operation space, so that the construction efficiency of the annular template 40 is affected. The present embodiment provides a preferred embodiment, as shown in fig. 1 and 3, the annular form 40 includes a plurality of first forms 41 and second forms 42 disposed at intervals, the horizontal support structure 30 includes a plurality of first telescopic rods 31 and second telescopic rods 32 disposed at intervals, the telescopic ends of the first telescopic rods 31 are connected to the back of the first forms 41, and the telescopic ends of the second telescopic rods 32 are connected to the back of the second forms 42. The first template 41 and the second template 42 are both arc-shaped aluminum alloy templates. The side of the first template 41 is provided with a stepped groove in a direction towards the sleeve 20, and the side of the second template 42 is provided with a stepped boss matching the stepped groove in a direction away from the sleeve 20. The number of the first telescopic rods 31 and the second telescopic rods 32 is consistent with that of the first templates 41 and the second templates 42, and the first telescopic rods 31 and the second telescopic rods 32 are telescopic along the radial direction of the annular sleeve 20. The first telescopic rod 31 and the second telescopic rod 32 can be hydraulic telescopic rods or electric push rods, and the working principle and the specific structure of the telescopic rods can be realized in the prior art without being described.
In the initial state, the first telescopic rod 31 and the second telescopic rod 32 are contracted, more operation space is provided for the installation of the first template and the second template, and a double-layer structure of the first template 41 on the outer layer and the second template 42 on the inner layer is formed, so that the radius of the first template 41 and the radius of the second template 42 in the initial state can be reduced, and the smaller construction space is occupied. When the mold is erected, the first mold plate 41 moves to a preset position under the pushing action of the first telescopic rod 31, and then the second mold plate 42 moves to a preset position under the pushing action of the second telescopic rod 32, so that the stepped boss is matched with the stepped groove, and the completed annular mold plate 40 is formed. When the mold is disassembled, the second template 42 is driven to move towards the sleeve 20 by the second telescopic rod 32, the second template 42 is separated from the first template 41, and then the first template 41 is driven to move towards the sleeve 20 by the first telescopic rod 31, so that a double-layer structure of the first template 41 on the outer layer and the second template 42 on the inner layer is formed, and the template system is restored to the initial state. In order to improve the sealing effect of the stepped boss and the stepped groove, the stepped boss and the stepped groove may be provided with a rubber pad, and the rubber pad is in a compressed state after the first template 41 and the second template 42 are spliced.
In the inner formwork system with the cylindrical structure provided by the embodiment, when the first formwork 41 and the second formwork 42 are installed, the first telescopic rod 31 and the second telescopic rod 32 are in a contracted state, and a double-layer structure of the first formwork 41 on the outer layer and the second formwork 42 on the inner layer is formed, so that the inner formwork system can adapt to the construction environment in a narrow space; only by controlling the telescopic lengths of the first telescopic rod 31 and the second telescopic rod 32, the first template 41 and the second template 42 can be spliced into the annular template 40, and the automatic demolding work of the tubular structure can be realized, so that the construction efficiency is improved.
The embodiment also provides a construction method of the tubular structure, which adopts the inner template system for construction, and comprises the following steps:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
setting an inner template system of the tubular structure, specifically comprising setting a support column 10 at the axis of the tubular structure, fixing a sleeve 20 on the support column 10, setting a first telescopic rod 31 and a second telescopic rod 32 on the sleeve 20 at intervals, firstly installing a second template 42 at the end part of the second telescopic rod 32, then enabling the second telescopic rod 32 to shrink, and then installing a first template 41 at the end part of the first telescopic rod 31 to form a double-layer structure with the first template 41 outside and the second template 42;
step three, enabling the first telescopic rod 31 to stretch and enable the first template 41 to reach a preset position, enabling the second telescopic rod 32 to stretch and enable the second template 42 to reach a preset position, enabling the stepped boss to be matched with the stepped groove, and sequentially splicing the first template 41 and the second template 42 to form an annular template 40;
pouring concrete between the outer template of the tubular structure and the inner annular template 40 to form the tubular structure;
and fifthly, after the strength of the concrete of the cylindrical structure meets the requirement, the second telescopic rod 32 is contracted and drives the second template 42 to move towards the sleeve 20, and then the first telescopic rod 31 is contracted and drives the first template 41 to move towards the sleeve 20, so that the demolding is completed and a double-layer structure with the first template 41 outside and the second template 42 inside is formed.
Example III
The third embodiment is to further describe the internal template system based on the second embodiment.
As shown in connection with fig. 1 and 3, the cross section of the sleeve 20 is circular, and the inner diameter of the sleeve 20 is adapted to the outer diameter of the support column 10. The sleeve 20 may be fixedly connected directly to the support column 10, such as by radial bolting, and as a preferred embodiment, the inner form system further includes a lifting device 60 provided on the support column 10, and the sleeve 20 may be slid up and down along the support column 10 by the lifting device 60.
The lifting device 60 can be a hydraulic rod arranged on the support column 10 or the base 50 to lift, or can be a guide rail arranged on the support column 10, a driving motor arranged on the sleeve 20, and a gear meshed with the guide rail and arranged at the end part of the driving motor to climb up and down. By providing the lifting device 60, the ring-shaped form 40 can be moved to an appropriate height.
As shown in fig. 1 and 2, the lifting device 60 provided in this embodiment includes a winch 61 fixedly installed on the top wall of the support column 10 and a pull rope 62 wound on the winch 61, in this embodiment, the winches 61 are symmetrically disposed along two sides of the center of the top of the support column 10, which helps to improve the sliding effect of the sleeve 20, and one end of the pull rope 62 far from the winch 61 is fixed on the top wall of the sleeve 20. The lifting device is arranged in a mode of a winch and a pull rope, so that the lifting flexibility and the lifting stroke of the sleeve can be improved.
The inner formwork system provided in this embodiment is convenient for control the installation height of the annular formwork 40 by setting up the lifting device, and after the construction of the one-layer structure is completed and the formwork is automatically removed, the first formwork 41 and the second formwork 42 can be lifted to the previous layer, and the construction of the previous layer of barrel structure is continued, so that the construction efficiency is improved. The cylindrical structure with higher height is poured in a layered mode, so that the construction quality of the cylindrical structure is guaranteed.
Since the lifting device 60 is adopted, the fifth step of the second embodiment further includes:
step six, lifting the sleeve 20 by the lifting device 60 to enable the first template 41 and the second template 42 to move upwards to the upper layer height; then repeating the third to fifth steps, and pouring concrete with a cylindrical structure in layers;
and step seven, removing the inner template system of the tubular structure after the top layer of concrete of the tubular structure is poured and the strength of the concrete meets the requirement.
Example IV
The fourth embodiment is to further describe the internal template system based on the third embodiment.
Since the hoist 61 is only started during the lifting or lowering of the sleeve 20, and other times are in a stopped state, the load of the annular form 40 and the horizontal support structure 30 is not borne by the hoist 61, and if the hoist 61 or the pull rope 62 fails, the annular form 40 may fall, resulting in a safety accident. In order to improve the safety of the inner formwork system, an adjusting and limiting mechanism 70 is further arranged at the top of the supporting column 10.
As shown in fig. 1 to 4, the adjusting and limiting mechanism 70 includes a first support plate 701 and a second support plate 702, and a drum 703, a rotating shaft 704, a torsion spring 705, a ratchet 708, a pawl 709, a mounting plate 710, a guide expansion lever 711, and an elastic piece 712.
The first support plate 701 is arranged on the top wall of one end of the support column 10, which is close to the winch 61, a winding drum 703 is rotatably arranged on the first support plate 701, a rotating shaft 704 is coaxially arranged on the winding drum 703 in a penetrating manner, and the rotating shaft 704 is rotatably supported on the first support plate 701. Two reels 703 are symmetrically arranged along the center of the support column 10, the arrangement direction of the two reels 703 is perpendicular to the arrangement direction of the two winders 61, the rotation axis of the rotating shaft 704 is arranged along the horizontal direction, the rotation axis of the rotating shaft 704 is perpendicular to the arrangement direction of the two reels 703, a connecting rope 706 is wound on the reels 703, the connecting rope 706 extends downwards to slide through the sleeve 20, through holes 21 for the corresponding connecting rope 706 to slide through are formed in the opposite sides of the sleeve 20, one end, far away from the reels 703, of the connecting rope 706 is fixedly connected with a limiting block 707, the cross section of the limiting block 707 is circular, the diameter of the limiting block 707 is larger than that of the through holes 21, and the limiting block 707 is located below the sleeve 20. The torsional spring 705 movable sleeve is established on pivot 704, and the one end fixed connection of torsional spring 705 is on the reel 703 lateral wall, and the other end fixed connection is on first extension board 701, and torsional spring 705 is used for driving reel 703 rotation rolling connection rope 706, and ratchet 708 fixed sleeve is established on the pivot 704 of reel 703.
The second extension board 702 is arranged on the top wall of the support column 10, the second extension board 702 is in an L-shaped arrangement, a guide telescopic rod 711 is arranged on the second extension board, the top of the guide telescopic rod 711 is fixed with the second extension board 702, a mounting plate 710 is arranged at the bottom of the guide telescopic rod 711, a pawl 709 is hinged to the mounting plate 710, one end of the pawl 709 is hinged to the mounting plate 710, the other end of the pawl 709 is matched with a ratchet 708, an elastic piece 712 is further arranged between the pawl 709 and the mounting plate 710, the elastic piece 712 is positioned on one side of the pawl 709 away from the corresponding ratchet 708, the elastic piece 712 is used for pushing the pawl 709 to rotate towards a direction close to the ratchet 708, and the pawl 709 is used for limiting the rotation of the winding drum 703 towards a direction opposite to the acting force of the torsion spring 705, so that the sleeve is limited to move downwards. The guiding telescopic rod 711 can drive the mounting plate 710 to move towards or away from the ratchet 708, so that the pawl 709 is engaged with or disengaged from the ratchet 708, and when the pawl 709 approaches the ratchet 708, the elastic piece 712 can ensure the engagement effect of the pawl 709 and the ratchet 708.
The adjusting and limiting mechanism 70 has the following working principle:
when the lifting mechanism descends the sleeve 20, the position of the mounting plate 710 is controlled through the guiding telescopic rod 711, so that the pawl 709 and the ratchet 708 are in a separated state, the sleeve 20 descends to pull the connecting rope 706 to rotate the winding drum 703, and the torsion of the torsion spring 705 is increased;
when the first template 41 and the second template 42 are lowered to the bottom plate positions, the torsion force of the torsion spring 705 reaches the maximum, the position of the mounting plate 710 is controlled through the guiding telescopic rod 711, so that the pawl 709 and the ratchet 708 are in a meshed state, and at the moment, the sleeve 20 can only move upwards and cannot move downwards, so that the sleeve 20 is limited in a one-way, and the safety of an inner template system is improved;
after the first layer of the cylindrical structure is constructed and the automatic demolding is completed, the sleeve 20 is lifted upwards rapidly, and in the lifting process of the sleeve 20, the winding drum 703 winds the connecting rope 706 under the torsion action of the torsion spring 705;
when the sleeve 20 moves to a distance equal to H from a predetermined height, for example, h=5cm to 10cm, the lifting speed of the lifting mechanism is reduced, the number S of teeth of the ratchet 708 is counted, when s= [ H/. DELTA.L ] the lifting mechanism stops lifting, wherein DELTA.L is the lifting height of the sleeve 20 when the number of teeth of the ratchet 708 is 1, and [ H/. DELTA.L ] is the integral value of H/. DELTA.L, at this time, the load of the sleeve 20, the horizontal support structure 30 and the annular template 40 is transmitted to the ratchet 708 and the ratchet 709 through the connecting rope 706. Further, in order to control the moving height of the sleeve 20, scale marks 718 are provided on the outer wall of the support column 10 along the length direction of the support column 10, and the scale marks 718 are provided to facilitate moving the annular template 40 to a desired height as required.
The present embodiment can bring the following advantageous effects by providing the adjusting and limiting mechanism 70:
(1) The winch 61 rapidly lifts the annular template 40 to the vicinity of a predetermined height, then slows down the rotation speed, and precisely controls the height of the annular template 40 by controlling the number of teeth on the ratchet 708 by controlling the pawl 709 to scratch;
(2) In the engaged state of the ratchet 708 and the pawl 709, the winding drum 703 can only rotate in one direction, that is, the annular template 40 can only move upwards, the annular template 40 can be prevented from moving downwards, the annular template 40 can be prevented from falling in the lifting process, and after the annular template 40 is lifted in place, the vertical load of the annular template 40 can be borne by adjusting the limiting mechanism 70, so that the winch 61 is in a stop state, and the safety is improved and the energy is saved.
Example five
The fifth embodiment is a further description of the internal template system based on the fourth embodiment.
As shown in connection with fig. 1-4, the adjustment limiting mechanism 70 further includes a spring 713, a magnet 714, an iron block 715, an adjustment cord 716, and a pushrod 717. The spring 713 is sleeved on the guiding telescopic rod 711, two ends of the spring 713 respectively abut against the second support plate and the mounting plate, and the spring 713 is used for pushing the mounting plate 710 to drive the pawl 709 to slide towards the direction close to the ratchet 708. The iron block 715 is relatively fixed at one side of the mounting plate 710 far away from the ratchet 708, the iron block 715 extends towards the direction far away from the ratchet 708, the magnets 714 are fixed on the top wall of the second support plate 702, the magnets 714 are in one-to-one correspondence with the iron blocks 715, the magnets 714 are located at one side of the iron block 715 far away from the ratchet 708, the magnets 714 are used for being in adsorption fit with the corresponding iron blocks 715, the adsorption force of the magnets 714 and the iron blocks 715 is greater than the thrust of the springs 713, and when the magnets 714 and the iron blocks 715 are in adsorption fixation, the pawls 709 are separated from the ratchet 708. One end of the adjusting rope 716 is fixed on one side of the mounting plate 710 close to the sleeve 20, the other end is fixedly connected to the top wall of the sleeve 20, when the sleeve 20 slides to one end of the support column 10 far away from the winding drum 703, the adjusting rope 716 is in a tensioning state and the pawl 709 is meshed with the ratchet 708; a push rod 717 is fixed to the top wall of the sleeve 20, the push rods 717 are in one-to-one correspondence with the mounting plates 710, and the push rod 717 is used for pushing the mounting plates 710 to slide in a direction away from the ratchet 708.
The operation of the adjustment limiting mechanism 70 will be further described.
In the initial state, the sleeve 20 is positioned at the top end of the support column 10, the push rod 717 is abutted with the mounting plate 710, the magnet 714 is in adsorption fit with the iron block 715, and the pawl 709 is separated from the ratchet 708. In operation, the winding engine 61 is started to unwind the pull rope 62, the sleeve 20 and the annular template 40 move towards the direction approaching the bottom plate under the action of gravity, the sleeve 20 moves to pull the connecting rope 706, the connecting rope 706 pulls the winding drum 703 to rotate to unwind the connecting rope 706, the torsion spring 705 rotates to deform until the annular template 40 approaches the bottom plate, the adjusting rope 716 gradually tightens and pulls the mounting plate 710 to slide towards the direction approaching the ratchet 708, the magnet 714 and the iron block 715 are separated, the mounting plate 710 approaches the ratchet 708 under the action of the spring 713, the pawl 709 is meshed with the ratchet 708, and the torsion spring 705 has torsion force for driving the winding drum 703 to rotate to wind the connecting rope 706. Therefore, the adjusting and limiting mechanism 70 provided in this embodiment can automatically complete the engagement of the pawl 709 and the ratchet 708 according to the requirement, so as to ensure the safe operation of the inner template system.
When the uppermost concrete is poured, the winch 61 is started to wind the pull rope 62, the pull rope 62 pulls the sleeve 20 to move towards the direction close to the winding drum 703, then the push rod 717 gradually abuts against the mounting plate 710 and pushes the mounting plate 710 to slide towards the direction close to the magnet 714, so that the iron block 715 is gradually close to the magnet 714, the magnet 714 adsorbs the iron block 715, and the pawl 709 is separated from the ratchet 708, so that the sleeve 20 can be conveniently moved downwards along the support column 10 next time.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. An inner template system with a cylindrical structure is characterized in that,
the inner template system comprises a support column, a sleeve, a horizontal support structure and an annular template;
the support column is vertical to be set up, the sleeve cover is established on the support column, sets up a plurality of horizontal bearing structures along circumferencial direction interval on the sleeve outer wall, and horizontal bearing structure's flexible end is connected with annular template.
2. The tubular structured inner template system of claim 1,
the annular template comprises a plurality of first templates and second templates which are arranged at intervals, the horizontal supporting structure comprises a plurality of first telescopic rods and second telescopic rods which are arranged at intervals, the telescopic ends of the first telescopic rods are connected with the back of the first templates, and the telescopic ends of the second telescopic rods are connected with the back of the second templates;
the side of the first template is provided with a step-shaped groove in the direction facing the sleeve, and the side of the second template is provided with a step-shaped boss matched with the step-shaped groove in the direction far away from the sleeve;
the first telescopic rod and the second telescopic rod are controlled to retract, so that the annular template can be transformed into a double-layer structure with the first template on the outer layer and the second template on the inner layer; the first telescopic rod and the second telescopic rod are controlled to stretch out in sequence, the stepped boss can be matched with the stepped groove, and the first template and the second template are spliced in sequence to form the annular template.
3. The tubular structured inner template system of claim 2,
a bottom plate is arranged below the cylindrical structure;
the bottom of the support column is provided with a base, and the base comprises a connecting plate which is horizontally arranged and embedded bars which are arranged below the connecting plate; the embedded bars are embedded in the bottom plate, and the connecting plate is horizontally arranged at the axis of the cylindrical structure;
the bottom of the support column is provided with a connecting lug plate, and the connecting lug plate is fixedly connected with the base through bolts.
4. The tubular structured inner template system of claim 2,
the inner template system further comprises a lifting device arranged on the support column, and the sleeve can slide up and down along the support column through the lifting device.
5. The tubular structured inner template system of claim 4,
the lifting device comprises a winch fixedly arranged on the top wall of the support column and a pull rope wound on the winch; the two windlass are symmetrically arranged along the two sides of the center of the top of the support column, and one end of the pull rope, which is far away from the windlass, is fixed on the top wall of the sleeve.
6. The tubular structured inner template system of claim 5,
the top of the support column is also provided with an adjusting and limiting mechanism, the adjusting and limiting mechanism comprises a first support plate, a second support plate, a winding drum, a rotating shaft, a torsion spring, a ratchet wheel, a pawl, a mounting plate, a guiding telescopic rod and an elastic sheet;
the first support plate is arranged at the top of the support column, a winding drum is rotatably arranged on the first support plate, a rotating shaft is coaxially arranged on the winding drum in a penetrating mode, and the rotating shaft is rotatably supported on the first support plate; the ratchet wheel is fixedly sleeved on the rotating shaft of the winding drum;
the winding drum is wound with a connecting rope which extends downwards to slide through the sleeve, through holes for the corresponding connecting ropes to slide through are formed in the two opposite sides of the sleeve, and a limiting block is fixedly connected to one end, away from the winding drum, of the connecting rope;
the torsion spring is movably sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the side wall of the winding drum, the other end of the torsion spring is fixedly connected to the first support plate, and the torsion spring is used for driving the winding drum to rotate and wind up the connecting rope;
the second extension board sets up in the support column top, and the top and the second extension board of direction telescopic link are fixed, and the bottom is provided with the mounting panel, and the articulated pawl that is provided with on the mounting panel, the one end and the mounting panel of pawl are articulated to be set up, and the other end cooperatees with the ratchet, still is provided with the elastic piece between pawl and the mounting panel, and the elastic piece is used for promoting the pawl and rotates towards the direction that is close to the ratchet, and the pawl is used for restricting ratchet unidirectional rotation.
7. The tubular structured inner template system of claim 6,
the adjusting and limiting mechanism further comprises a spring, a magnet, an iron block, an adjusting rope and a push rod;
the spring is movably sleeved on the guide telescopic rod, two ends of the spring respectively abut against the second support plate and the mounting plate, and the spring is used for pushing the mounting plate to drive the pawl to slide towards the direction close to the ratchet wheel;
the iron block is relatively fixed on the mounting plate, the magnet is fixed on the top wall of the second support plate, the magnet corresponds to the iron block, and when the magnet and the iron block are adsorbed and fixed, the pawl is separated from the ratchet wheel;
the top end of the adjusting rope is fixed on the mounting plate, the bottom end of the adjusting rope is fixedly connected to the top wall of the sleeve, and when the sleeve slides downwards to a tensioning state of the adjusting rope, the mounting plate is pulled to move downwards, and the pawl is meshed with the ratchet wheel;
the push rod is fixed on the sleeve roof, and when the sleeve upwards slides to push rod and mounting panel butt, can make the mounting panel upwards move together, makes pawl and ratchet separation.
8. The construction method of the tubular structure is characterized by comprising the following steps of:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
setting an inner template system of the tubular structure as claimed in claim 1, wherein the inner template system of the tubular structure is formed by setting a support column at the axis of the tubular structure, fixing a sleeve on the support column, setting a horizontal support structure on the sleeve, setting an annular template, and fixedly connecting the end part of the horizontal support structure with the annular template;
pouring concrete between an outer template of the tubular structure and an inner annular template to form the tubular structure;
and step four, dismantling the inner template system of the tubular structure after the strength of the concrete of the tubular structure meets the requirement.
9. The construction method of the tubular structure is characterized by comprising the following steps of:
firstly, presetting an outer template of a cylindrical structure and binding reinforcing steel bars of the cylindrical structure;
setting an inner template system of the tubular structure as claimed in claim 2, wherein the inner template system specifically comprises a support column arranged at the axis of the tubular structure, fixing a sleeve on the support column, arranging a first telescopic rod and a second telescopic rod at intervals on the sleeve, firstly installing a second template at the end part of the second telescopic rod, then enabling the second telescopic rod to shrink, and then installing a first template at the end part of the first telescopic rod to form a double-layer structure with the first template outside and the second template inside;
step three, enabling the first telescopic rod to stretch and enable the first template to reach a preset position, enabling the second telescopic rod to stretch and enable the second template to reach a preset position, enabling the stepped boss to be matched with the stepped groove, and sequentially splicing the first template and the second template to form an annular template;
pouring concrete between the outer template of the tubular structure and the annular template inside to form the tubular structure;
and fifthly, after the strength of the concrete of the cylindrical structure meets the requirement, the second telescopic rod is contracted and drives the second template to move towards the sleeve direction, and then the first telescopic rod is contracted and drives the first template to move towards the sleeve direction, so that the demolding is completed and a double-layer structure with the first template outside and the second template inside is formed.
10. The method for constructing a tubular structure according to claim 9,
the inner template system further comprises a lifting device arranged on the support column, and the sleeve can slide up and down along the support column through the lifting device;
the fifth step further comprises:
step six, lifting the sleeve by a lifting device to enable the first template and the second template to move upwards to the casting height of the previous layer; then repeating the third to fifth steps, and pouring concrete with a cylindrical structure in layers;
and step seven, removing the inner template system of the tubular structure after the top layer of concrete of the tubular structure is poured and the strength of the concrete meets the requirement.
CN202310727581.8A 2023-06-20 2023-06-20 Inner template system of cylindrical structure and construction method thereof Active CN116464274B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB901995A (en) * 1959-05-04 1962-07-25 Arnold Carter H Improvements in or relating to hoisting devices
GB925650A (en) * 1959-12-07 1963-05-08 Erik Johan Von Heidenstam Lifting device
JP2010090646A (en) * 2008-10-10 2010-04-22 Nikken Fence & Metal:Kk Method for constructing cylindrical concrete structure, inside form device, and fall prevention device
JP2018115489A (en) * 2017-01-19 2018-07-26 コンドーテック株式会社 Anchor frame and method of building steel frame structure using the same
CN109750892A (en) * 2019-01-18 2019-05-14 中国十七冶集团有限公司 A kind of prefabricated assembled mixing blower fan pylon template support method and device
US20210246002A1 (en) * 2020-02-07 2021-08-12 Matt's Arm, Llc Tower hoist, platform and davit system
CN215107196U (en) * 2021-07-23 2021-12-10 贺信苇 Liftable support for construction engineering construction
WO2022134620A1 (en) * 2020-12-25 2022-06-30 中建三局第一建设工程有限责任公司 Inverted construction platform system and construction method
CN217501668U (en) * 2022-06-14 2022-09-27 洛阳腾众工程机械有限公司 Make things convenient for assembled tunnel portal design of dismouting to use template
CN115126285A (en) * 2022-08-08 2022-09-30 山东新厦建设有限公司 Novel supporting device for building construction and building construction method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB901995A (en) * 1959-05-04 1962-07-25 Arnold Carter H Improvements in or relating to hoisting devices
GB925650A (en) * 1959-12-07 1963-05-08 Erik Johan Von Heidenstam Lifting device
JP2010090646A (en) * 2008-10-10 2010-04-22 Nikken Fence & Metal:Kk Method for constructing cylindrical concrete structure, inside form device, and fall prevention device
JP2018115489A (en) * 2017-01-19 2018-07-26 コンドーテック株式会社 Anchor frame and method of building steel frame structure using the same
CN109750892A (en) * 2019-01-18 2019-05-14 中国十七冶集团有限公司 A kind of prefabricated assembled mixing blower fan pylon template support method and device
US20210246002A1 (en) * 2020-02-07 2021-08-12 Matt's Arm, Llc Tower hoist, platform and davit system
WO2022134620A1 (en) * 2020-12-25 2022-06-30 中建三局第一建设工程有限责任公司 Inverted construction platform system and construction method
CN215107196U (en) * 2021-07-23 2021-12-10 贺信苇 Liftable support for construction engineering construction
CN217501668U (en) * 2022-06-14 2022-09-27 洛阳腾众工程机械有限公司 Make things convenient for assembled tunnel portal design of dismouting to use template
CN115126285A (en) * 2022-08-08 2022-09-30 山东新厦建设有限公司 Novel supporting device for building construction and building construction method

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