CN110453911B - Door-closing type supporting formwork system and construction method thereof - Google Patents

Door-closing type supporting formwork system and construction method thereof Download PDF

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Publication number
CN110453911B
CN110453911B CN201910847129.9A CN201910847129A CN110453911B CN 110453911 B CN110453911 B CN 110453911B CN 201910847129 A CN201910847129 A CN 201910847129A CN 110453911 B CN110453911 B CN 110453911B
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CN
China
Prior art keywords
vertical
template
fixing
keels
vertical keels
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Application number
CN201910847129.9A
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Chinese (zh)
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CN110453911A (en
Inventor
伍伟中
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China Construction First Group Corp Ltd
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China Construction First Group Corp Ltd
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Priority to CN201910847129.9A priority Critical patent/CN110453911B/en
Publication of CN110453911A publication Critical patent/CN110453911A/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
    • 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
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • 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
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/12—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements and beams which are mounted during erection of the shuttering to brace or couple the elements
    • 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
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0651—One-piece elements
    • E04G17/0652—One-piece elements fully recoverable
    • 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
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
    • E04G17/0751—One-piece elements
    • E04G17/0752—One-piece elements fully recoverable
    • 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
    • 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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The application relates to the field of building templates, in particular to a door-closing type supporting formwork system and a construction method thereof, wherein the door-closing type supporting formwork system comprises a positioning device, vertical keels, back ribs, fixing rods and vertical templates, the positioning device is fixed on the ground, the vertical keels are inserted into the positioning device, a plurality of vertical keels are symmetrically arranged and form two parallel rows, each row of vertical keels is respectively provided with the back ribs, the back ribs span the whole row of vertical keels, and the fixing rods penetrate through the back ribs and are connected with the two rows of vertical keels; the template connecting pieces are connected between two adjacent vertical keels to form a portal frame, and the plurality of template connecting pieces connect the vertical keels in the whole row into a whole; the vertical template is installed in the portal frame and is connected with the template connecting piece and the vertical keel. The door-closing type supporting formwork system provided by the application is used for positioning and fixing the vertical keels and then installing the formwork, so that the door-closing type supporting formwork system can be synchronously carried out with the steel bar binding step to shorten the construction period, and the installation part has the effect of conveniently avoiding the steel bars in a visible state.

Description

Door-closing type supporting formwork system and construction method thereof
Technical Field
The application relates to the field of building templates, in particular to a door-closing type supporting formwork system and a construction method thereof.
Background
The construction of the building templates is generally that two vertical templates are symmetrically fixed at the periphery of a vertical concrete member, a PVC pipe penetrates through the two opposite vertical templates, a pair of penetrating screws are arranged in the PVC pipe to fix the two vertical templates, and then a plurality of back ribs with different heights are arranged to strengthen the vertical templates. When the existing building templates are constructed, the vertical templates cannot be seen through, PVC pipes can only be penetrated blindly, steel bars of the vertical concrete members are difficult to avoid sometimes, and the template construction is required to be carried out after the steel bar binding procedure of the vertical concrete members.
Disclosure of Invention
The application aims to provide a door-closing type supporting formwork system and a construction method thereof, which are used for solving the problem that the formwork construction in the prior art is required to be carried out after a reinforcing steel bar binding procedure, and the reinforcing steel bars of a vertical concrete member are difficult to avoid when the vertical formwork is fixed.
Embodiments of the present application are implemented as follows:
in a first aspect, an embodiment of the present application provides a door-closed type supporting scaffold system.
The door-closing type supporting formwork system comprises a positioning device, vertical keels, back ribs, fixing rods and vertical templates, wherein the positioning device is fixed on the ground, the vertical keels are inserted into the positioning device, a plurality of vertical keels are symmetrically arranged and form two parallel rows, each row of vertical keels is respectively provided with the back ribs, the back ribs span the whole row of vertical keels, and the fixing rods penetrate through the back ribs and are connected with the two rows of vertical keels;
The vertical templates comprise a first vertical template, a second vertical template, a third vertical template and template connectors, wherein the template connectors are arranged between two adjacent vertical keels, and a plurality of the template connectors connect the vertical keels in a whole row into a whole; the first vertical template is fixed in the below of template connecting piece and with the adjacent vertical fossil fragments are connected, the second vertical template is fixed in the top of template connecting piece and with the adjacent vertical fossil fragments are connected, the third vertical template is connected in two rows the end of vertical fossil fragments.
According to the application, the formwork system for the building is improved to be a door-closing type supporting formwork system, the positioning device is firstly arranged, the positioning device is utilized to determine the positions of the vertical keels along a pre-designed positioning line, the positioning device is used for fixing the bottom ends of the vertical keels, the plurality of vertical keels are respectively arranged on two sides of a vertical steel bar and form two rows along the positioning line, the number of the two rows of vertical keels is the same and oppositely arranged, every two oppositely arranged vertical keels are connected in a penetrating manner by using a fixing rod, and the fixing rod is respectively fixedly connected with the two vertical keels so as to further fix the upper ends of the vertical keels, so that the whole vertical keels are kept vertical and the width between the two vertical keels is controlled;
Connecting a plurality of template connecting pieces sequentially with adjacent vertical keels to form a portal frame for installing the vertical templates, respectively reinforcing two rows of frames by using back ribs, penetrating and fixing the back ribs on the fixing rods, enabling the back ribs to cross the whole row of vertical keels so as to tie the whole row of vertical keels together, and preventing the quadrangular portal frame from deforming;
the door type frame comprises a lower frame positioned below the template connecting piece and an upper frame positioned above the template connecting piece, wherein the first vertical template is installed on the lower frame, the second vertical template is installed on the upper frame, and the third vertical template is installed at the ends of two rows of vertical keels so as to seal two ends, so that a vertical formwork for building concrete is formed.
According to the door-closing type supporting formwork system, the vertical keels are arranged firstly, the two rows of vertical keels are connected through the fixing rods, each row of vertical keels are connected into a whole through the formwork connecting piece to form a door-type frame, the whole row of vertical keels are tied through the back edges to fix the door-type frame, and then the vertical formwork is inlaid and installed on the door-type frame. According to the door-closing type supporting formwork system, the arrangement of the vertical keels does not influence the internal observation, the fixing rods can be penetrated in the visible state of the steel bars of the visible vertical concrete members, and compared with the mode that the PVC pipes are penetrated blindly and then the opposite penetrating screw rods are penetrated in the prior art, the door-closing type supporting formwork system provided by the application can adjust the positions of the positioning device and the vertical keels in the visible state so as to avoid the steel bars of the vertical concrete members; meanwhile, in the setting process of the vertical keels, the fixing rods, the formwork connecting pieces and the back edges, the steel bars of the vertical concrete members are always in a visible state, so that the step of supporting the formwork and the steel bar binding step of the vertical concrete members can be synchronously carried out before the vertical templates are inlaid, and the construction period is saved.
In one embodiment of the present application, optionally, the vertical keels are made of channel steel, and the webs of the two rows of vertical keels are opposite and the slots are opposite, and each web is provided with a first connecting hole allowing the fixing rod to pass through; a first plugboard is arranged in the groove of the vertical keel, and a first plughole is formed in the first plugboard;
the fixing rod is provided with a radial through hole corresponding to the first plug hole, and further comprises a plug pin, and the plug pin penetrates through the first plug hole and the radial through hole.
The dead lever passes the first connecting hole of two relative vertical keels, thereby the bolt passes the radial through-hole on first spliced pole and the dead lever on with dead lever and vertical fossil fragments fixed connection, only need set up two bolts and just make the dead lever fixed with the relative position of vertical fossil fragments, and the dead lever installation is dismantled conveniently, and the connection, the separation of the vertical fossil fragments of relative setting are quick.
In one embodiment of the present application, optionally, the positioning device includes a sleeve, a positioning plate and a connecting piece, where the sleeve is fixed in a reserved through hole on the floor, the positioning plate is provided with a sliding hole, the connecting piece is inserted into the sliding hole to fixedly connect the positioning plate to the sleeve, and the positioning plate is provided with a positioning plug-in;
The bottom position of vertical fossil fragments is equipped with two at least second plugboards, every be equipped with the second spliced eye on the second plugboard respectively, the second spliced eye with the cooperation of location plug-in components.
The connecting piece passes the slide hole adapter sleeve of locating plate, and the fixed in position of sleeve pipe and connecting piece is before connecting piece and sleeve pipe are fixed, adjusts the relative position of slide hole and connecting piece to adjust the locating plate to suitable position, make the location plug-in components be located the position of the locating line of predesigned, two second plugboards of vertical fossil fragments bottom are pegged graft on the location plug-in components, thereby make vertical fossil fragments erect. The positioning device of the door-closing type supporting formwork system comprises the fixed part and the adjustable part, wherein the fixed part can avoid the arrangement of the steel bars of the bottom floor slab, and the movable part adjusts the position relative to the fixed part, so that the accurate positioning is realized, the vertical keel is stably installed, the mounting and dismounting operation is simple and quick, the vertical keel is only required to be directly inserted into the positioning device, and the vertical keel is pulled up during the dismounting.
In one embodiment of the present application, optionally, the fixing rod includes a conical screw, two fixing nuts are disposed on the conical screw, and the back ridge and the vertical keel are located between the two fixing nuts.
Through setting up the dead lever as the conical screw, the back of the body is stupefied to wear to establish on the conical screw after, uses fixation nut can fasten the back of the body stupefied on vertical fossil fragments, and during the dismantlement, take down fixation nut and back of the body stupefied, hold the big end of dead lever and pull out the dead lever. After the concrete placement is accomplished, form the bell mouth with the dead lever adaptation in the wall body, hold the big end of dead lever and make the tip of dead lever extract to the big end by the tip of bell mouth, can take out the dead lever relatively easily, dismantle the step more light loose quick, and need not to set up the PVC pipe and form and wear to establish the passageway to save the economic cost that the PVC pipe consumes and set up the time cost that the PVC pipe consumes, install and tear open fast, laborsaving.
In one embodiment of the present application, optionally, the back edge includes a first back edge and a plurality of second back edges parallel to the first back edge, where the first back edge is disposed at a height position where the template connecting piece is located, and the first back edge is connected with a diagonal bracing assembly, and another end of the diagonal bracing assembly is fixed on the ground.
The back edges are arranged at the positions where a row of vertical keels are connected with the template connecting piece, so that the first back edges are tied with the vertical keels along the template connecting piece, and the diagonal bracing assembly is supported between the ground and the first back edges, and therefore before the first vertical template and the second vertical template are installed, the first back edges which do not shade the portal frame can be used for transversely tying and fixing the whole row of vertical keels, and diagonal bracing assemblies which do not shade the portal frame are arranged for further supporting the vertical keels to prevent the vertical keels from swinging and tilting; the second back edge is used for further reinforcing the upper frame and the lower frame of the portal frame after the vertical template is installed, so that the integral rigidity of the door-closing type supporting formwork system is enhanced, and deformation is prevented.
In one embodiment of the application, optionally, the diagonal brace assembly comprises a first mount, a second mount, and a diagonal brace;
the first fixing piece is sleeved outside the fixing rod, the first fixing piece is positioned between the first back edge and the fixing nut, the first fixing piece is provided with a clamping groove matched with the first back edge in a clamping way, and the second fixing piece is fixed on the ground; and two ends of the inclined stay rod are respectively and pivotally connected with the first fixing piece and the second fixing piece.
According to the diagonal bracing assembly, the diagonal bracing rod is fixed through the first fixing piece and the second fixing piece, the first fixing piece is sleeved outside the fixing rod, the first fixing piece is clamped on the first back edge to fix the position of the first fixing piece, and then the first fixing piece is fastened by using the existing fixing nut to further fix the first fixing piece. The diagonal bracing assembly enables the diagonal bracing to be firmly installed, dislocation and sliding are not easy to occur at two ends, and the effect of stable support is achieved.
In one embodiment of the present application, optionally, the diagonal brace includes an outer sleeve rod and two inner screws, the two inner screws are respectively screwed on two ends of the outer sleeve rod, and each inner screw is respectively capable of telescoping along the outer sleeve rod.
Through setting up the diagonal brace into the interior screw rod of outer loop bar and threaded connection at outer loop bar both ends, two interior screw rods can stretch out and draw back along outer loop bar respectively so that the length of diagonal brace just supports between first back of the body stupefied and ground.
In one embodiment of the present application, optionally, the back rib includes a first cross bar and a second cross bar that are disposed in parallel, the first cross bar is fixedly connected to two ends of the second cross bar, and a gap for allowing the fixing rod to pass through is reserved between the first cross bar and the second cross bar.
Through setting up the back of the body stupefied into both ends fixed connection, the centre has first horizontal pole and the second horizontal pole in clearance, the back of the body stupefied wears to establish on the dead lever, the both ends of the back of the body stupefied cooperate with the dead lever in end to end position, the length direction adjustment of back of the body stupefied can be followed to the concrete position of dead lever in middle part position, when according to actual conditions, when the position needs adjustment of individual vertical fossil fragments, this back of the body stupefied can be applicable to more situations, can also improve the suitability of a set of mould frame system, turnover use under the convenience multiple circumstances.
In one embodiment of the present application, optionally, the formwork connector includes a first plate and a second plate disposed around the first plate, and the second plate is connected to the vertical keel or the vertical formwork.
According to the formwork connecting piece provided by the application, the first plate, the vertical formwork and the vertical keels are spliced to form the pouring surface for plugging concrete, the second plate is conveniently connected with the vertical keels and the vertical formwork, and the second plate and the vertical keels or the vertical formwork are fastened by using the anchoring parts such as the pins, the bolts and the like, so that the gap between the first plate and the vertical formwork or the vertical keels is reduced, and the phenomena of concrete leakage, formwork explosion and the like are prevented.
In a second aspect, the present application provides a construction method of the above-mentioned door-closing type formwork system, which includes:
two positioning devices are symmetrically arranged on the periphery of a preset position of a vertical concrete member, each positioning device is inserted with one vertical keel, and a plurality of fixing rods are used for connecting two opposite vertical keels at different heights;
connecting template connecting pieces between two adjacent vertical keels to form a lower frame below the template connecting pieces and an upper frame above the template connecting pieces between the two adjacent vertical keels, and sequentially connecting a plurality of vertical keels by using a plurality of template connecting pieces;
arranging a first back edge at the height position of the template connecting piece, and transversely connecting the whole row of vertical keels, so that the first back edge is sleeved on the fixing rod and fixed;
A first vertical template is installed in the lower frame, a second vertical template is installed in the upper frame, and the first vertical template and the second vertical template are respectively connected with the vertical keels and the template connecting pieces;
and a plurality of second back ribs are used for crossing and connecting the whole row of vertical keels at different height positions of the vertical keels, so that the second back ribs are sleeved on the fixing rods and fixed.
The application provides a construction method of a door-closing type supporting die frame system, which utilizes the door-closing type supporting die frame system, wherein two positioning devices are fixedly arranged according to a pre-designed positioning line, vertical keels are fixed on the positioning devices, two opposite vertical keels are connected by using a fixing rod, then two adjacent vertical keels are connected by using a template connecting piece to form a door-type frame consisting of an upper frame and a lower frame, two first back edges are respectively connected with the two rows of vertical keels, the first back edges are positioned at the height position of the template connecting piece and transversely span the whole row of vertical keels along the template connecting piece, so that the door-type frame is shaped by means of a drawknot, then a first vertical template and a second vertical template are respectively embedded and installed, and finally the upper frame and the lower frame are further shaped by using the second back edges. Compared with the prior art that the vertical formwork system is firstly bound and then the vertical formwork system is arranged, and the blind penetrating screw rod is arranged, the method is firstly used for forming the portal frame and then installing the vertical formwork, and the installation process of all parts in the portal frame forming process is carried out in a visible state, that is, the process of arranging the vertical keels, the fixing rods, the formwork connecting pieces and the first back edges can be carried out synchronously with the binding process of the steel bars before the vertical formwork is inlaid and fixed, so that the labor hour saving effect is achieved, and the positions of the vertical keels and the fixing rods in the portal frame supporting formwork system can be conveniently adjusted in the portal frame arranging process, so that the steel bars of the vertical concrete members are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a door-closing type supporting formwork system provided by an embodiment of the application;
fig. 2 is a side view of a door-closing type supporting formwork system according to an embodiment of the present application;
fig. 3 is a schematic structural view of a vertical keel according to an embodiment of the present application;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a side view of a positioning device according to an embodiment of the present application;
FIG. 6 is a top view of a positioning device according to an embodiment of the present application;
FIG. 7 is a front view of a formwork connector provided in an embodiment of the present application;
FIG. 8 is a section B-B of FIG. 7;
fig. 9 is a schematic structural view of a fixing rod according to an embodiment of the present application;
fig. 10 is a schematic structural view of a back ridge according to an embodiment of the present application;
FIG. 11 is a cross-sectional view of FIG. 10C-C;
FIG. 12 is a schematic view of the structure of the diagonal brace;
FIG. 13 is a side view of a first fastener provided in an embodiment of the present application;
FIG. 14 is a front view of a first fastener according to an embodiment of the present application;
FIG. 15 is a side view of a second securing member provided in accordance with an embodiment of the present application;
FIG. 16 is a front view of a second fastener according to an embodiment of the present application;
FIG. 17 is a state diagram of a portal frame formed in accordance with an embodiment of the present application;
FIG. 18 is a first set state diagram of a portal frame in accordance with an embodiment of the present application;
FIG. 19 is a state diagram of the present application after setting up a diagonal brace;
FIG. 20 is a view showing the installation of a vertical form in an embodiment of the present application;
fig. 21 is a state diagram after the second shaping in the embodiment of the application.
Icon: 100-vertical keels; 110-web; 111-first connection holes; 120-wing plates; 121-a second connection hole; 130-a first plugboard; 131-a first plug hole; 140-a second plugboard; 141-a second plug hole; 200-back edges; 201-a first cross bar; 202-a second rail; 210-a first back ridge; 220-a second back ridge; 300-positioning device; 310-positioning a plate; 311-positioning an insert; 320-sleeve; 330-a connector; 400-right angle connector; 500-fixing rod; 510—a first thread segment; 520-smooth section; 521-radial through holes; 530-a second thread segment; 600-diagonal bracing assembly; 610-diagonal braces; 620-a first securing member; 621-a clamping groove; 622-first connection lugs; 623-a fixed plate; 630-a second mount; 631-a bottom plate; 632-second connection ears; 710—a first vertical template; 720-a second vertical template; 730-form connectors; 731-a first panel; 732-second plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Examples
The application provides a door-closing type supporting formwork system, which is used for solving the problem that in the prior art, the construction of a formwork is required to be carried out after the binding procedure of vertical steel bars, and the vertical formwork is difficult to avoid the steel bars of a vertical concrete member when being fixed.
As shown in fig. 1 and 2, the door-closing type supporting formwork system comprises a positioning device 300, a vertical keel 100, a back rib 200, a fixing rod 500 and a vertical formwork.
The positioning device 300 is installed along a positioning line designed in advance when the building structure is designed. The positioning device 300 is constructed as shown in fig. 5 and 6, and the positioning device 300 includes a fixed portion fixed to the ground, a movable portion fixed to the fixed portion, and a connection member 330 for fixedly connecting the fixed portion and the movable portion.
The fixed part of the positioning device 300 is fixed in advance avoiding the steel bars in the plate of the lower floor slab, the position of the movable part relative to the fixed part is adjustable, the position of the movable part is adjusted to correspond to the pre-designed positioning line, and the movable part is fixedly connected to the fixed part by using the connecting piece 330.
As shown in fig. 5, the fixing portion includes a sleeve 320, and the sleeve 320 is installed in a reserved through hole of the lower floor or is connected to a floor form of the lower floor before the lower floor is poured.
As shown in fig. 6, the movable part includes a positioning plate 310 and a positioning insert 311 provided on the positioning plate 310, and a slide hole is provided on the positioning plate 310.
The connecting piece 330 is a screw rod in threaded fit with the sleeve 320, and the screw rod penetrates through the sliding hole and is in sliding fit with the sliding hole.
The sleeve 320 is fixed in a reserved through hole of the floor slab or is connected to a slab bottom template of the lower floor slab in advance, the slide hole of the positioning plate 310 is aligned with the sleeve 320, the positioning plug 311 corresponds to a pre-designed positioning line, the screw rod passes through the slide hole and is connected with the sleeve 320 in a threaded manner, and the screw rod is screwed to fix the positioning plate 310.
The positioning devices 300 are arranged in two opposite rows, and the two positioning devices 300 are equal in number and opposite in position.
The vertical keels 100 are fixed in the positioning device 300, the bottom of the vertical keels 100 is provided with a plug hole which is matched with the positioning plug 311 in a plug manner, the vertical keels 100 are fixedly inserted on the positioning device 300 to form two parallel rows, the number of the two rows of vertical keels 100 is equal, the positions of the two rows of vertical keels are opposite, the vertical concrete members are formed between the two rows of vertical keels 100 in a pouring mode, and the reinforcing steel bars of the vertical concrete members are formed between the two rows of vertical keels 100 in a binding mode.
Fig. 3 shows a schematic structural view of the keel and fig. 4 shows an enlarged view of the bottom end position of the keel of fig. 3. The vertical keel 100 is made of channel steel, so that the vertical keel 100 has axially extending grooves, wherein the floor 631 of the grooves form the web 110 of the vertical keel 100 and the side walls of the grooves form the wings 120 of the vertical keel 100. The webs 110 of the two rows of vertical keels 100 are opposite and the notches are opposite, the web 110 of each vertical keel 100 is provided with a first connecting hole 111, the wing plate 120 is provided with a second connecting hole 121, the first connecting hole 111 is used for penetrating the fixing rod 500, and the second connecting hole 121 is used for connecting the vertical templates or the template connecting pieces 730 by using anchoring pieces such as pins, screws and the like.
A first plugboard 130 and a second plugboard 140 are arranged in the groove, wherein the first plugboard 130 is positioned at the middle part and the top part of the vertical keel 100, and the second plugboard 140 is positioned at the bottom part of the vertical keel 100; the first plug board 130 is provided with a first plug hole 131, and the second plug board 140 is provided with a second plug hole 141.
At least two second inserting plates 140 are arranged at the bottom of the vertical keel 100, and when the vertical keel 100 is inserted and fixed on the positioning device 300, the positioning insert 311 at least penetrates through the two second inserting holes 141, so that the vertical keel 100 is kept vertical.
The middle parts and the tops of the two opposite vertical keels 100 are connected through a plurality of fixing rods 500, and the fixing rods 500 play a role in supporting and pulling the two vertical keels 100, so that the deflection deformation of the vertical keels 100 is reduced.
The first connection hole 111 may allow the fixing rod 500 to pass through, for penetrating the fixing rod 500, the first plug board 130 is disposed near the first connection hole 111, and the fixing rod 500 is provided with a radial through hole 521, and the radial through hole 521 may correspond to the first connection hole 111.
As shown in fig. 9, radial through holes 521 are respectively formed at two ends of the fixing rod 500, the fixing rod 500 further includes two pins, the fixing rod 500 is inserted into two vertical keels 100 which are oppositely arranged, and the pins are inserted into the first insertion holes 131 and the radial through holes 521 to limit the fixing rod 500 to move relative to the vertical keels 100, so that the relative positions of the fixing rod 500 and the vertical keels 100 and the relative positions of two oppositely arranged vertical keels 100 are fixed, and the distance between the two vertical keels 100 is not easy to change under the action of external force. The fixing rod 500 is fixed with the relative positions of the two opposite vertical keels 100 through the two bolts, the fixing rod 500 is convenient to mount and dismount, and the opposite vertical keels 100 are fast to connect and separate.
In this embodiment, each vertical keel 100 is provided with a plurality of first connection holes 111 along the axial direction, the upper and lower positions of each first connection hole 111 are respectively provided with a first plugboard 130, and the plug pins sequentially pass through one first connection hole 111, the radial through hole 521 and the other first connection hole 111.
To accommodate the spacing of the vertical keels 100 in the case of different wall thicknesses, a plurality of radial through holes 521 are provided at both ends of the fixing rod 500, respectively. In this embodiment, as shown in fig. 9, two radial through holes 521 are respectively provided at both ends of the fixing rod 500.
In this embodiment, the fixing rod 500 adopts a conical screw, as shown in fig. 9, two ends of the fixing rod 500 are respectively provided with a thread section, for convenience of description, the first thread section 510 and the second thread section 530 are referred to as a first thread section 510, the diameter of the first thread section 510 is smaller, the diameter of the second thread section 530 is larger, a smooth section 520 is arranged between the first thread section 510 and the second thread section 530, and the diameter of the smooth section 520 gradually increases from one end close to the first thread section 510 to one end close to the second thread section 530. The aforementioned radial through holes 521 are provided in the smooth section 520, and concrete is formed in the range of the smooth section 520. After the concrete pouring is formed, a smooth through hole with one large end and one small end is formed at the position where the smooth section 520 is located, and the second threaded section 530 is held to integrally pull out the fixing rod 500 when the concrete pouring is detached, because the diameter of the first threaded section 510 is smaller and smaller than or equal to the small end of the smooth through hole, the fixing rod 500 can be pulled out conveniently, the dismantling speed is high, the PVC pipe sleeve is not required to be used outside the opposite threaded rod as in the prior art to facilitate dismantling, and the time cost and the economic cost for penetrating the PVC pipe are saved.
The first thread segment 510 and the second thread segment 530 are provided with an adapted fixation nut, respectively, hereinafter referred to as a smaller first fixation nut adapted to the first thread segment 510 and a larger second fixation nut adapted to the second thread segment 530.
The aforementioned vertical templates include a first vertical template 710, a second vertical template 720, a third vertical template, and a template connector 730.
The formwork connectors 730 are connected to two adjacent vertical keels 100, and the plurality of formwork connectors 730 sequentially connect the vertical keels 100 of the whole row into a whole, that is, the two rows of vertical keels 100 are respectively connected into a whole through the plurality of formwork connectors 730.
As shown in fig. 17, a plurality of formwork connectors 730 connect a row of vertical keels 100 as a unit to form a row of portal frames, wherein the lower portion is a lower frame and the upper portion is an upper frame. Alternatively, as shown in fig. 17, the form connector 730 is positioned at an upper portion of the vertical keel 100 to form a lower frame having a greater vertical height and an upper frame having a smaller vertical height, such that the door frame is shaped like a lower-mounted door panel and an upper-mounted window frame as seen daily.
Fig. 7 and 8 show a schematic structure of a formwork connector 730, where the formwork connector 730 includes a first plate 731 and a second plate 732 disposed around the first plate 731, and through holes are formed in the second plate 732. The first plate 731 is used for splicing with the vertical formwork and the web 110 of the vertical keel 100 to form a vertical pouring surface for plugging concrete, the left and right second plates 732 are used for being attached to the wing plates 120 of the vertical keel 100, the upper and lower second plates 732 are used for being attached to the edges of the vertical formwork, and the second plates 732, the vertical keel 100, the second plates 732 and the vertical formwork are fastened by using pins, bolts and other anchoring parts, so that gaps between the first plate 731 and the vertical formwork and gaps between the first plate 731 and the vertical keel 100 are reduced, and concrete leakage and mould explosion phenomena are avoided.
The first vertical template 710 is adapted to the lower frame, the second vertical template 720 is adapted to the upper frame, and the third vertical template is disposed at the ends of the two rows of vertical keels 100 and is used for plugging the two ends of the two rows of vertical keels 100.
The aforementioned back rib 200 spans across the entire row of vertical keels 100 and is fixed to laterally tie together the entire row of vertical keels 100, preventing the entire row of vertical keels 100 from being inclined in a direction away from each other and from being deflected to cause deformation of the portal frame.
The back edge 200 comprises a first cross bar 201 and a second cross bar 202 which are arranged in parallel, the first cross bar 201 is fixedly connected with the second cross bar 202, and a gap for allowing the fixing bar 500 to pass through is reserved between the first cross bar 201 and the second cross bar 202. Referring to fig. 18, the gaps of the back ridge 200 are sleeved on a row of fixing bars 500 on the same horizontal line, the first cross bar 201 is located at the upper part of the fixing bars 500, the second cross bar 202 is located at the lower part of the fixing bars 500, and the fixing nuts on the fixing bars 500 fasten the back ridge 200 and the vertical keels 100. The first cross bar 201, the second cross bar 202 are at both ends fixed connection, the both ends of the back of the body is stupefied 200 and the dead lever 500 cooperation of end to end position, the length direction adjustment of the back of the body is stupefied 200 can be followed to the concrete position of dead lever 500 in middle part position, when the condition such as the reinforcing bar interference of dead lever 500 and vertical concrete member appears, the position of the vertical fossil fragments 100 of being convenient for is adjusted, so set up and make the back of the body stupefied 200 can be used in more situations, improve the suitability, turnover use under the convenience multiple condition.
Alternatively, when the position of the vertical keel 100 is determined, the back rib 200 may be configured as shown in fig. 10 and 11, the first and second cross bars 201 and 202 are directly connected through a bar-shaped plate, and a plurality of through holes allowing the fixing bars 500 to pass through are formed in the bar-shaped plate, and the through holes are located at a gap between the first and second cross bars 201 and 202 and are sequentially aligned along the length direction of the back rib 200. In actual production, the back ridge 200 with various length specifications and various through hole pitches can be arranged, and the back ridge is selected according to the required length and through hole pitches in use.
Divided by the installation position on the vertical keel 100, as shown in fig. 21, the back rib 200 includes a first back rib 210 and a second back rib 220, the first back rib 210 is disposed along the formwork connector 730 to avoid shielding the upper frame or the lower frame, and the second back rib 220 is disposed parallel to the first back rib 210 to play a reinforcing role at the position of the upper frame or the lower frame.
As shown in fig. 21, a row of vertical keels 100 is provided with five back ribs 200, and the five back ribs 200 are spaced apart along the vertical keels 100. The formwork connector 730 is disposed at an upper position of the vertical keel 100, and the first back rib 210 and the formwork connector 730 are disposed at the same height. A second back rib 220 is arranged above the first back rib 210, and the second back rib 220 above the first back rib 210 is close to the top of the vertical keel 100 and is positioned at the position of the upper frame; three second back ribs 220 are arranged below the second back ribs 220, and the three second back ribs 220 are approximately uniformly distributed at the position of the lower frame.
In order to improve the stability of the door-closing type supporting formwork system, inclined strut assemblies 600 are arranged on two sides of the door-closing type supporting formwork system, and the inclined strut assemblies 600 are supported between the back ridge 200 and the ground.
Optionally, in order to ensure the strength requirement of the formwork system in the construction process of the door-closing type supporting formwork system, and not to affect the installation of the vertical formwork, the first back rib 210 is arranged before the installation of the vertical formwork, after the first back rib 210 is arranged, the diagonal bracing assembly 600 is arranged to be supported between the first back rib 210 and the ground, so that the whole formwork is ensured not to shake and incline, and the vertical formwork is installed after the diagonal bracing assembly 600 is arranged.
The diagonal brace assembly 600 includes a diagonal brace 610, a first securing member 620 and a second securing member 630.
The diagonal brace 610 is constructed as shown in fig. 12, and includes an outer jacket rod and two inner screws screw-coupled to both ends of the outer jacket rod, and the two inner screws are rotated in opposite directions to extend or retract the outer jacket rod, so that the length of the diagonal brace 610 is adjustable.
The first fixing member 620 has a structure as shown in fig. 13 and 14, the first fixing member 620 includes a fixing plate 623, a through hole for allowing the fixing rod 500 to pass through is formed in the fixing plate 623, two protruding first connection lugs 622 are provided on one surface of the fixing plate 623, and a clamping groove 621 is provided on the other surface of the fixing plate 623. The first fixing piece 620 is disposed between the fixing nut and the first back rib 210, the fixing plate 623 is sleeved outside the fixing rod 500, so that the clamping groove 621 is clamped on the first back rib 210, as shown in fig. 13, the first fixing piece 620 is provided with two clamping grooves 621, the two clamping grooves 621 are respectively matched with the first cross bar 201 and the second cross bar 202, and the fixing nut fastens the first fixing piece 620, the first back rib 210 and the vertical keel 100.
As shown in fig. 15 and 16, the second fixing member 630 includes a bottom plate 631, the bottom plate 631 is laid on the ground, a through hole is formed in the bottom plate 631, a pin, a bolt or the like is used to pass through the through hole in the bottom plate 631 to fix the bottom plate 631 to the lower floor, and a protruding second connection lug 632 is provided on the bottom plate 631.
The diagonal brace 610 is pivotally connected to the first fixing member 620 and the second fixing member 630 at both ends thereof, that is, one inner screw is pivotally connected to the first connecting lug 622 and the other inner screw is pivotally connected to the second connecting lug 632. Fig. 19 shows a schematic view of the installation of the diagonal brace assembly 600 from a front view, and fig. 2 shows a schematic view of the installation of the diagonal brace assembly 600 from a side view.
Optionally, the internal threads provided at both ends of the outer sleeve rod are reverse threads, that is, when the two internal screws are fixed, the outer sleeve rod is rotated forward to enable the two internal screws to extend out simultaneously, and the outer sleeve rod is rotated reversely to enable the two internal screws to retract simultaneously. After the diagonal bracing assembly 600 is installed, the length of the diagonal bracing rod 610 can be finely adjusted by rotating the outer sleeve rod so as to apply prestress for supporting to the formwork system, so as to resist outward force generated after concrete is poured, and prevent the vertical keel 100 and the formwork from being outwardly inclined or from being exploded.
The diagonal brace assembly 600 described above may be supported not only between the first back rib 210 and the ground, but also between the second back rib 220 and the bottom surface, or the diagonal brace assembly 600 may be directly connected to the vertical keel 100 and the ground. In the present application, the number of diagonal strut assemblies 600 is not limited, so long as they can be stably supported.
For the shear wall member with corners, two groups of door-closing type supporting formwork systems are arranged, a corner formwork piece (not shown in the figure) is arranged at the corner position to replace a third vertical formwork of the two groups of door-closing type supporting formwork systems, and two ends of the L shape are respectively connected with vertical keels 100 at the ends of the two groups of door-closing type supporting formwork systems. The corner template piece comprises two L-shaped vertical templates, one vertical template is located at an inner angle, the other vertical template is located at an outer angle, and the two vertical templates are connected into a whole by using angle steel.
In addition, optionally, a right-angle connector 400 for connecting the bottom templates of the upper floor slab is provided at the top of the closed-door formwork system, as shown in fig. 1 and 2, one right-angle connector 400 is provided at the top of each of the two rows of vertical keels 100, and the right angles of the two right-angle connectors 400 are opposite and bent toward the upper floor slab.
The door-closing type supporting formwork system provided by the application adopts a brand new structure, can relatively accurately position and fix the vertical keel 100, forms a door-type frame before installing a formwork, can synchronously carry out the forming step of the door-type frame and the steel bar binding step of the vertical concrete member, shortens the construction period, and can easily avoid the steel bars of the vertical concrete member by installing each part in a visible state in the forming process of the door-type frame.
The application also provides a construction method of the door-closing type supporting formwork system, which comprises the following steps.
Mounting and positioning device 300:
before pouring the lower floor slab, connecting the sleeve to a slab bottom template of the lower floor slab, or reserving a through hole on the lower floor slab, and installing the sleeve to the reserved through hole; paying off on the lower floor slab, determining the position of a pre-designed positioning line, adjusting the positioning plate 310 to enable the positioning plug-in 311 to be positioned on the positioning line, and fixing the positioning plate 310 on the sleeve by using the screw rod to pass through a sliding hole on the positioning plate 310, so that the positioning plate 310 cannot rotate around the screw rod or move up and down. Using this method, two sets of positioning devices 300 are installed along the positioning line of the vertical concrete member, the two sets of positioning devices 300 are identical in number and opposite in position, that is, the two sets of positioning devices 300 are symmetrically disposed with respect to the axis of the vertical concrete member.
Installing the vertical keel 100:
a vertical keel 100 is erected on each positioning device 300, the second inserting holes 141 at the bottom of each vertical keel 100 are aligned with one positioning insert 311 to be inserted, the vertical keels 100 are adjusted, the web plates 110 of the vertical keels 100 are close to the preset positions of the vertical concrete members, the notch of each vertical keel 100 faces outwards, that is, the web plates 110 of the two rows of vertical keels 100 are opposite, and the notch faces away.
Penetrating the fixing rod 500:
the fixing rod 500 passes through the first connecting holes 111 of the two opposite vertical keels 100, so that the radial through holes 521 on the fixing rod 500 are aligned with the first inserting holes 131 on the first inserting plate 130 of the vertical keels 100, and the fixing rod 500 is fixedly connected with the vertical keels 100 by using bolts to pass through the first inserting holes 131 and the radial through holes 521. Those skilled in the art should know that the two ends of the fixing rod 500 are fixedly connected with the vertical keel 100 by using bolts, and the connection modes of the two ends are the same, which is not described herein. Every two oppositely disposed vertical keels 100 are connected using a plurality of fixing bars 500.
Forming a portal frame:
the formwork connector 730 is attached to the upper portion of the vertical keel 100 in the embodiment of fig. 17, the formwork connector 730 is located a quarter of the way from the top of the vertical keel 100, the first panel 731 of the formwork connector 730 is flush with the web 110 of the vertical keel 100, and the second panel 732 is pinned or bolted to the vertical keel 100. A formwork connector 730 is disposed between every two vertical keels 100 to form a portal frame, wherein more than the formwork connector 730 is an upper frame, and less than the formwork connector 730 is a lower frame, and a plurality of formwork connectors 730 connect a row of vertical keels 100 together.
Shaping for the first time:
the first back rib 210 is positioned corresponding to the template connector 730, as shown in fig. 18, such that a gap in the middle of the first back rib 210 is hung through the fixing rod 500, and a fixing nut is used to fasten the first back rib 210 to the vertical keel.
Installing the sprag assembly 600:
when the height of the wall is high and the formwork system is easily tilted by rocking, the diagonal brace assembly 600 is installed before the first back rib 210 is fastened to the vertical keel using the fixing nut.
Referring to fig. 19, the first fixing element 620 is sleeved on the fixing rod 500, so that the clamping groove 621 on the first fixing element 620 is clamped on the first back rib 210, and then the fixing nut is used to fasten the first fixing element 620, the first back rib 210 and the vertical keel 100 together; the second fixing member 630 is laid on the ground and fixed to the lower floor slab using anchors such as pins or bolts; the length of the diagonal brace 610 is adjusted such that one of the inner screws is pivotally coupled to a first coupling tab 622 on the first mount 620 and the other inner screw is pivotally coupled to a second coupling tab 632 on the second mount 630.
Optionally, the internal threads provided at both ends of the outer sleeve rod are reverse threads, and after the diagonal bracing assembly 600 is installed, the outer sleeve rod is rotated to adjust the supporting prestress.
And (3) installing a vertical template:
as shown in fig. 20, a first vertical form 710 is installed at the position of each lower frame, a second vertical form 720 is installed at the position of each upper frame, a third vertical form (not shown in the figure) is installed at the ends of two rows of vertical keels 100, the plate surfaces of the vertical forms are flush with the web plates 110 of the vertical keels 100, and the frame of the vertical forms is fastened to the wing plates 120 of the vertical keels 100 by using anchors such as pins or bolts.
And (3) shaping for the second time:
as shown in fig. 21, a second back edge 220 is disposed above the first back edge 210, three second back edges 220 are disposed below the first back edge 210, and the second back edge 220 above the first back edge 210 is close to the top of the vertical keel 100 and is located at the position of the upper frame; three second back ribs 220 are arranged below the second back ribs 220, and the three second back ribs 220 are approximately uniformly distributed at the position of the lower frame.
When each second back rib 220 is installed, a gap in the middle of the second back rib 220 is hung through a fixing rod 500 at a corresponding position, and the second back rib 220 is fastened with the vertical keel by using a fixing nut.
According to the construction method provided by the application, the portal frame is formed firstly, the vertical template is installed after the portal frame is shaped for the first time, the installation process of each component is carried out in a visible state in the portal frame forming process and the first shaping process, that is to say, the process of arranging the vertical keel 100, the fixing rod 500, the template connecting piece 730, the first back rib 210 and the diagonal bracing assembly 600 before embedding and fixing the vertical template can be synchronously carried out with the binding process of the steel bars, the effect of saving labor hours is achieved, and the positions of the vertical keel 100 and the fixing rod 500 in the door-closing type supporting formwork system can be conveniently adjusted in the visible state, so that the steel bars of the vertical concrete members are avoided; after the vertical template is installed, the second back ridge 220 is set for the second time, so that the effect of further reinforcement is achieved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (9)

1. The door-closing type supporting formwork system is characterized by comprising a positioning device, vertical keels, back ribs, fixing rods and vertical templates, wherein the positioning device is fixed on the ground, the vertical keels are inserted into the positioning device, a plurality of vertical keels are symmetrically arranged and form two parallel rows, each row of vertical keels is respectively provided with the back ribs, the back ribs span the whole row of vertical keels, and the fixing rods penetrate through the back ribs and are connected with the two rows of vertical keels;
the vertical templates comprise a first vertical template, a second vertical template, a third vertical template and template connectors, wherein the template connectors are arranged between two adjacent vertical keels, and a plurality of the template connectors connect the vertical keels in a whole row into a whole; the first vertical template is fixed below the template connecting piece and is connected with the adjacent vertical keels, the second vertical template is fixed above the template connecting piece and is connected with the adjacent vertical keels, and the third vertical template is connected with the ends of the two rows of vertical keels;
The two ends of the fixed rod are respectively provided with a first thread section and a second thread section, wherein the diameter of the first thread section is smaller, the diameter of the second thread section is larger, a smooth section is arranged between the first thread section and the second thread section, and the diameter of the smooth section gradually increases from one end close to the first thread section to one end close to the second thread section;
the first thread section and the second thread section are respectively provided with an adaptive fixing nut;
the back ridge and the vertical keel are positioned between the two fixing nuts.
2. The door-closing type supporting formwork system according to claim 1, wherein the vertical keels are made of channel steel, web plates of the two rows of vertical keels are opposite and the notches are opposite, and each web plate is provided with a first connecting hole allowing the fixing rod to pass through; a first plugboard is arranged in the groove of the vertical keel, and a first plughole is formed in the first plugboard;
the fixing rod is provided with a radial through hole corresponding to the first plug hole, and further comprises a plug pin, and the plug pin penetrates through the first plug hole and the radial through hole.
3. The door-closing type supporting formwork system according to claim 1, wherein the positioning device comprises a sleeve, a positioning plate and a connecting piece, the sleeve is fixed in a reserved through hole on a floor slab, the positioning plate is provided with a sliding hole, the connecting piece is arranged in the sliding hole in a penetrating manner so as to fixedly connect the positioning plate with the sleeve, and the positioning plate is provided with a positioning plug-in;
The bottom position of vertical fossil fragments is equipped with two at least second plugboards, every be equipped with the second spliced eye on the second plugboard respectively, the second spliced eye with the cooperation of location plug-in components.
4. The door-closing type supporting formwork system according to claim 1, wherein the back edge comprises a first back edge and a plurality of second back edges parallel to the first back edge, the first back edge is arranged at the height position of the formwork connecting piece, the first back edge is connected with an inclined strut assembly, and the other end of the inclined strut assembly is fixed on the ground.
5. The closed-door bracing frame system according to claim 4, wherein the diagonal bracing assembly comprises a first fixing member, a second fixing member and a diagonal bracing rod;
the first fixing piece is sleeved outside the fixing rod, the first fixing piece is positioned between the first back edge and the fixing nut, the first fixing piece is provided with a clamping groove matched with the first back edge in a clamping way, and the second fixing piece is fixed on the ground; and two ends of the inclined stay rod are respectively and pivotally connected with the first fixing piece and the second fixing piece.
6. The closed-door type supporting formwork system according to claim 5, wherein the diagonal brace comprises an outer sleeve rod and two inner screws, the two inner screws are respectively connected to two ends of the outer sleeve rod in a threaded mode, and each inner screw can be respectively stretched along the outer sleeve rod.
7. The door-closing type supporting formwork system according to claim 1, wherein the back ridge comprises a first cross rod and a second cross rod which are arranged in parallel, two ends of the first cross rod and two ends of the second cross rod are fixedly connected, and a gap for allowing the fixing rod to pass through is reserved between the first cross rod and the second cross rod.
8. The formwork system of claim 1, wherein the formwork connector comprises a first plate and a second plate disposed around the first plate, and the second plate is connected to the vertical keel or the vertical formwork.
9. The construction method of the door-closing type supporting formwork system is characterized by comprising the following steps of:
two positioning devices are symmetrically arranged on the periphery of a preset position of a vertical concrete member, each positioning device is inserted with one vertical keel, and a plurality of fixing rods are used for connecting two opposite vertical keels at different heights;
connecting template connecting pieces between two adjacent vertical keels to form a lower frame below the template connecting pieces and an upper frame above the template connecting pieces between the two adjacent vertical keels, and sequentially connecting a plurality of vertical keels by using a plurality of template connecting pieces;
Arranging a first back edge at the height position of the template connecting piece, and transversely connecting the whole row of vertical keels, so that the first back edge is sleeved on the fixing rod and fixed;
a first vertical template is installed in the lower frame, a second vertical template is installed in the upper frame, and the first vertical template and the second vertical template are respectively connected with the vertical keels and the template connecting pieces;
a plurality of second back ribs are used for crossing and connecting the whole row of vertical keels at different height positions of the vertical keels, so that the second back ribs are sleeved on the fixing rods and fixed;
the two ends of the fixed rod are respectively provided with a first thread section and a second thread section, wherein the diameter of the first thread section is smaller, the diameter of the second thread section is larger, a smooth section is arranged between the first thread section and the second thread section, and the diameter of the smooth section gradually increases from one end close to the first thread section to one end close to the second thread section; the radial through holes are arranged on the smooth section, and the concrete is formed in the range of the smooth section; after concrete pouring and forming, a smooth through hole with one large end and one small end is formed at the position where the smooth section is located, and the second thread section is held to integrally pull out the fixing rod when the concrete pouring and forming device is disassembled.
CN201910847129.9A 2019-09-06 2019-09-06 Door-closing type supporting formwork system and construction method thereof Active CN110453911B (en)

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