CN115749250A - Straight wall circular arch cast-in-place structure template and installation method thereof - Google Patents
Straight wall circular arch cast-in-place structure template and installation method thereof Download PDFInfo
- Publication number
- CN115749250A CN115749250A CN202211525296.XA CN202211525296A CN115749250A CN 115749250 A CN115749250 A CN 115749250A CN 202211525296 A CN202211525296 A CN 202211525296A CN 115749250 A CN115749250 A CN 115749250A
- Authority
- CN
- China
- Prior art keywords
- arc
- template
- formwork
- port
- battens
- 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.)
- Pending
Links
Images
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a straight wall and circular arch cast-in-place structure template and an installation method thereof, wherein the template comprises an arc-shaped top template structure and a bottom template, and further comprises an arc-shaped main beam and a small beam which are used for supporting the top template, a full-space supporting frame body for supporting the arc-shaped main beam, a counter-pulling screw rod and a back ridge for supporting the top template. The full hall supports the indulges of support body and puts up the top and be equipped with adjustable top and hold in the palm, the arc girder includes and waits to water the arc shaped steel that the dome radian matches, the bottom of arc shaped steel corresponds the position that adjustable top held in the palm is equipped with the right angle and supports shaped steel, the top of arc shaped steel is equipped with a plurality of being used for spacingly the locating baffle of xiao liang. The installation method can directly support the adjustable jacking supporting plate on the right-angle supporting section steel of the arc-shaped main beam, can avoid deformation caused by eccentric compression of the adjustable jacking and long-term bending of components, increases the turnover use times and safety of the adjustable jacking and the vertical rod, and has better integral stability.
Description
Technical Field
The invention belongs to the technical field of construction of circular arches of buildings, and particularly relates to a straight wall circular arch cast-in-place structural template and an installation method thereof.
Background
The arch structure is a curved or zigzag member which mainly bears axial pressure and is kept balanced by thrust at two ends, the top of the top plate is constructed with larger vertical roof load, and the vertical load at two sides is relatively smaller. Aiming at the installation of the formwork support system of the arch structure, the formwork support system which is stressed by structural accessories such as vertical rods, horizontal rods, jacking supports, fasteners and the like is applied in most practical construction.
In actual construction application, the supporting plate on the upper portion of the jacking support directly acts on the stress points of the primary and secondary ridges, the jacking inclination can be adjusted, the stress points are eccentric, eccentric stress and deformation are caused, vertical rods are easy to bend longitudinally, and overall stability is affected. The traditional template supporting system and the template reinforcing system are applied to a straight-wall circular arch cast-in-place structure, the bottom template and the top template are of a common line type, so that the concrete forming curve effect is poor, and the forming quality is good but the cost is high by adopting a shaped steel template; in order to solve the problems of eccentric compression, component deformation, template line type and concrete forming quality, an arch template supporting system and a template reinforcing system of a straight wall circular arch cast-in-place structure need to be researched.
Disclosure of Invention
The invention aims to solve the technical problem of providing a straight wall circular arch cast-in-place structure template and an installation method thereof, and solves the problems of eccentric compression of a support frame body, deformation of components, linear type of the template and concrete forming quality.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cast-in-place structure template of straight wall dome, including curved top form structure and die block board, still including being used for supporting arc girder, trabecula, the support of top form the full hall of arc girder supports the support body, counter-draws screw rod and supports the back of the body of top form is stupefied, a serial communication port, the full hall supports the indulging of support body and puts up the top and be equipped with adjustable jacking, the arc girder includes and waits to water the arc shaped steel that the dome radian matches, the bottom of arc shaped steel corresponds the position that adjustable jacking is equipped with right angle support shaped steel, the top of arc shaped steel is equipped with a plurality of and is used for spacingly the positioning baffle of trabecula.
Further, the bottom template comprises a plurality of wood templates matched with the radian of the arc-shaped steel, splicing battens are arranged at the bottoms of joints of two adjacent wood templates, the lengths of the splicing battens are shorter than the distance between the two arc-shaped main beams, the bottoms of the splicing battens are connected to the arc-shaped main beams in a pulling mode through fastening battens, the lengths of the fastening battens are longer than the distance between the two arc-shaped main beams, and the wood templates, the splicing battens and the fastening battens are mutually nailed through wood nails.
Furthermore, the positioning baffle is an inverted 7-shaped steel sheet fixed on the top of the arc-shaped steel section at equal intervals by welding.
Furthermore, the adjustable jacking device comprises a screw rod, a supporting plate and an adjusting nut, the screw rod is in threaded connection with the top end of the longitudinal frame and is locked on the top end of the longitudinal frame through the adjusting nut, and the supporting plate is fixed on the top of the screw rod.
Furthermore, the top surface of the top template is provided with a vibrating opening, the size of the vibrating opening is 20cmX cm, and the vibrating opening and the surface of the top template form an included angle of 45 degrees.
Furthermore, the vibrating port is sealed by an oblique angle vibrating port template matched with the vibrating port in shape, two fixing battens are attached to two ends of the outer side of the oblique angle vibrating port template, and the fixing carpenters are tightly fixed to the top template and the oblique angle vibrating port template through carpenter nails.
The invention also provides an installation method of the straight wall circular arch cast-in-place structure template, which comprises the following steps:
s1, prefabricating an arc-shaped main beam, processing arc-shaped steel according to the bottom surface radian of a to-be-poured circular arch, and welding right-angle supporting steel and a positioning baffle on the arc-shaped steel to manufacture the arc-shaped main beam;
s2, erecting a support frame body, arranging a longitudinal frame of the full-space support frame body according to the position of the right-angle support section steel, arranging an adjustable jacking on the top of the longitudinal frame, and adjusting the height of the screw rod until reaching the elevation position capable of supporting the arc-shaped main beam;
s3, installing an arc-shaped main beam and small beams, erecting the arc-shaped main beam on the top of the adjustable jacking, and then sequentially erecting the small beams on the positioning baffle;
s4, mounting bottom templates, namely assembling a plurality of wood templates one by one to form the bottom templates, finely adjusting the height by using the adjustable jacking under the condition of reserving the arching height, then arranging splicing battens between the bottom of the joint of the adjacent wood templates and two arc-shaped main beams, firmly nailing the splicing battens on the wood templates through carpenter nails, fixing the fastening battens at the bottoms of the splicing battens through the carpenter nails to tie the arc-shaped main beams, finally, bonding transparent adhesive tapes at the upper opening positions of the joints in a through-length mode, splicing the bottom of the bottom template at the lowest end with the wall template reserved below, and firmly nailing the joints through carpenter nails and adopting foam adhesive plugs for seaming;
s5, installing reinforcing steel bars, and binding longitudinal and transverse reinforcing steel bars on the upper part of the bottom template;
s6, mounting a top template structure, cutting a vibration port on the surface of the top template, assembling the top template piece by piece and step by step above the reinforcing steel bars, nailing the joints of the templates by woodwork nails, splicing the bottom of the top template at the lowest end with a wall template reserved below, nailing the joints by the woodwork nails and plugging seams by foam adhesive;
s7, mounting back edges, namely mounting a longitudinal back edge and a transverse back edge on the top of the top template;
and S8, concrete pouring, namely symmetrically performing sectional pouring on two sides of the circular arch to be poured, vibrating while pouring, simultaneously plugging a template into the vibrating port every time one section of pouring vibrating is completed, and firmly nailing at least two woodworkers outside the template through woodwork nails to seal the template.
Further, in S6, one vibrating opening is cut every two spans of the top mold plate at a transverse interval, and one vibrating opening is cut every vertical top mold plate.
Advantageous effects
1. The mounting method can directly support the adjustable jacking supporting plate on the right-angle supporting section steel of the arc-shaped main beam (main beam), can avoid deformation caused by eccentric compression of the adjustable jacking and long-term bending of components, increases the turnover use times and safety of the adjustable jacking and the vertical rod, and has better integral stability.
2. For the circular arch cast-in-place structure with larger gradient, the trabeculae (secondary arris) are not easy to fix, the method can realize the quick installation and positioning of the trabeculae (secondary arris), the distribution intervals of the trabeculae are consistent, and the stress is more balanced.
3. The installation method enables the linear effect of the template curve to be better and improves the linear effect after concrete pouring and forming.
4. The formwork mounting method has the advantages that concrete is vibrated more fully, a vibrating opening is sealed more conveniently, and the concrete forming effect at the joint of the vibrating opening is better.
In conclusion, the template fixing device is simple in structure, simple and convenient to install and capable of efficiently installing and fixing the template.
Drawings
Fig. 1 is a construction flow chart of a method for installing a straight wall circular arch cast-in-place structure template.
Fig. 2 is a schematic structural view of a straight wall circular arch cast-in-place structural template.
Fig. 3 is an enlarged structural view of the top mold plate structure in fig. 2.
Fig. 4 is an enlarged structural schematic view of the arc-shaped main beam in fig. 2.
Fig. 5 is an enlarged schematic view of the bottom mold plate of fig. 2.
Fig. 6 is an enlarged schematic structural view of a vibrating opening in the top form structure of fig. 2.
Wherein, 1, an arc main beam; 1-1, positioning a baffle plate; 1-2, arc-shaped steel; 1-3, right-angle supporting section steel; 2. a trabecula; 3. the adjustable jacking is carried out; 4. the support frame body is supported in the whole hall; 5. oppositely pulling the screw rod; 6. back corrugation; 7. a bottom template; 7-1, wood templates; 7-2, buckling battens; 7-3, splicing and sewing battens; 7-4, transparent adhesive tape; 8. a top form structure; 8-1, a top template; 8-2, a vibrating port; 8-3, an oblique angle vibrating port template; 8-4, wood nails; 9. a wall form.
Like reference symbols in the various drawings indicate like elements.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in fig. 2 and 3, the invention provides a straight wall circular arch cast-in-place structural formwork, which comprises an arc-shaped top formwork structure 8, a bottom formwork 7-1, an arc-shaped main beam 1 and a small beam 2 for supporting the top formwork structure 8, a full-space supporting frame body 4 for supporting the arc-shaped main beam 1, a counter-pulling screw rod 5 and a back ridge 6 for supporting the top formwork structure 8. The top end of the longitudinal frame of the full-hall supporting frame body 4 is provided with an adjustable jacking 3, the arc main beam 1 comprises arc section steel 1-2 matched with a to-be-poured arch radian, the bottom of the arc section steel 1-2 corresponding to the position of the adjustable jacking 3 is provided with right-angle supporting section steel 1-3, and the top of the arc section steel 1-2 is provided with a plurality of positioning baffles 1-1 used for limiting the small beam 2.
As shown in fig. 5, the bottom formwork 7-1 comprises a plurality of wooden formworks which are matched with the arc-shaped steel 1-2 in radian, splicing battens 7-3 are arranged at the bottoms of the joints of two adjacent wooden formworks, the lengths of the splicing battens 7-3 are shorter than the distance between the two arc-shaped main beams 1, the bottoms of the splicing battens 7-3 are connected to the arc-shaped main beams 1 in a pulling mode through fastening battens 7-2 which are longer than the distance between the two arc-shaped main beams 1, and the wooden formworks, the splicing battens 7-3 and the fastening battens 7-2 are mutually nailed through carpenter nails 8-4.
As shown in FIG. 4, the positioning baffle 1-1 is an inverted 7-shaped steel sheet fixed on the top of the arc-shaped steel section 1-2 at equal intervals by welding.
The adjustable jacking 3 comprises a screw rod, a supporting plate and an adjusting nut, the screw rod is in threaded connection with the top end of the longitudinal frame and is locked on the top end of the longitudinal frame through the adjusting nut, and the supporting plate is fixed on the top of the screw rod.
As shown in fig. 6, the top surface of the top die plate 8-1 is provided with a vibrating opening 8-2, the size of the vibrating opening 8-2 is 20cmX cm, and an included angle of 45 degrees is formed between the vibrating opening 8-2 and the surface of the top die plate 8-1. The vibrating port 8-2 is sealed by an oblique vibrating port template 8-3 matched with the vibrating port 8-2 in shape, two fixed battens are attached to two ends of the outer side of the oblique vibrating port template 8-3, and the fixed woodworking nails 8-4 are fixedly fastened on the top template 8-1 and the oblique vibrating port template 8-3 through woodworking nails 8-4.
As shown in fig. 1, the invention also provides an installation method of the straight wall circular arch cast-in-place structure template, which comprises the following steps:
s1, prefabricating an arc-shaped main beam 1, processing arc-shaped section steel 1-2 according to the bottom surface radian of a to-be-poured circular arch, and welding right-angle support section steel 1-3 and a positioning baffle plate 1-1 on the arc-shaped section steel 1-2 to manufacture the arc-shaped main beam 1;
s2, erecting a support frame body, arranging a vertical frame of a full-hall support frame body 4 according to the positions of the right-angle support section steels 1-3, arranging an adjustable jacking 3 at the top of the vertical frame, and adjusting the height of the screw rod until the height reaches the elevation position capable of supporting the arc-shaped main beam 1;
s3, installing an arc main beam 1 and a small beam 2, erecting the arc main beam 1 on the top of the adjustable jacking 3, and then sequentially erecting the small beam 2 on the positioning baffle 1-1;
s4, installing a bottom template 7-1, assembling a plurality of wood templates into the bottom template 7-1 piece by piece, finely adjusting the height by using the adjustable jacking supports 3 under the condition of reserving the arching height, then arranging splicing battens 7-3 at the bottoms of the joints of the adjacent wood templates and between the two arc-shaped main beams 1, firmly nailing the splicing battens on the wood templates through carpenters, fixing the fastening battens 7-2 at the bottoms of the splicing battens 7-3 through the carpenters to tie the arc-shaped main beams 1, finally, bonding transparent adhesive tapes 7-4 at the upper opening positions of the joints in a long way, splicing the bottoms of the bottom template 7-1 at the lowest end with wall templates 9 reserved below, and nailing the joints firmly through the carpenters and adopting foam adhesive plugs for sewing;
s5, installing reinforcing steel bars, and binding longitudinal and transverse reinforcing steel bars on the upper part of the bottom template 7-1;
s6, mounting a top formwork structure, cutting a vibration opening 8-2 on the surface of the top formwork 8-1, assembling the top formwork 8-1 piece by piece and step by step above the reinforcing steel bars, nailing joints of the formworks through carpenter nails 8-4, splicing the bottom of the top formwork 8-1 at the lowest end with a wall formwork 9 reserved below, nailing the joints through the carpenter nails 8-4 and adopting foam adhesive for caulking;
s7, mounting back edges, namely mounting a longitudinal back edge 6 and a transverse back edge 6 on the top of the top template 8-1;
s8, concrete pouring is carried out, the two sides of the circular arch to be poured are symmetrically cast in sections, vibration is carried out while pouring, meanwhile, a formwork is plugged into the vibration opening 8-2 every time one section of pouring vibration is finished, and at least two woodworking nails 8-4 are firmly fixed outside the formwork through woodworking nails 8-4 to seal the formwork.
The following detailed description details the installation method by using an embodiment, as shown in fig. 1, which includes the following steps:
s1, prefabricating an arc main beam (main beam) in a factory:
according to a construction structure drawing and a construction scheme, the radian radius of the arched top plate, the distance between the support frames and the size of the distance between the positioning baffles of 1-1 are drawn by using a CAD (computer-aided design), then the arched top plate is delivered to a manufacturer for manufacturing, after a first manufactured mould is manufactured, the radian size and the distance of the first manufactured mould can be checked, whether the use requirements are met or not can be met, and the prefabricated quantity is confirmed according to the setting length and the quantity of construction sections.
The arc-shaped main beam 1 consists of three parts: the positioning baffle 1-1, the arc-shaped steel 1-2 and the right-angle support steel 1-3 are connected into a whole by welding.
The positioning baffle 1-1 is made of the same material as the arc-shaped steel 1-2, the positioning baffle is in an inverted 7 shape, the thickness of the baffle is 3mm, the height of the baffle is 40mm, and the length and the width of the baffle are 40mm. The main effect is that under the condition that has the radian, avoid the trabecula 2 (inferior stupefied) to slide, more convenient fixed trabecula 2, the while location baffle interval is welded according to the trabecula 2 interval, when on-the-spot installation trabecula 2, can directly place in location baffle 1-1 department.
The arc-shaped steel 1-2 adopts an inner curled channel steel, the size of the channel steel is determined according to stress calculation, and the key of the stress of the circular arch cast-in-place structure template is the key of template forming at the same time. The integral rigidity of the welding rod has to meet the mechanical requirement, and a welding strength detection report meeting the requirement needs to be provided.
The right-angle support section steel 1-3 and the arc section steel 1-2 are made of the same strength grade, and the size can be smaller by one specification. Two pieces of section steel are welded on the arc-shaped section steel 1-2, the right-angle support section steel 1-3 is an adjustable jacking 3 direct supporting point, and the main stress structure is suitable for automatic or semi-automatic submerged arc welding. The purpose is to avoid the eccentric compression of the vertical rod and the top support 3 to influence the overall stability of the supporting system.
S2, erecting a support frame body: according to the requirement of the special scheme of the template for installing the full-hall support frame body 4, firstly, according to the elevation numerical value of the key angular point of the arched top plate, the steel pipe vertical rod with the proper height is selected to erect the full-hall support frame body 4, and the elevation of the adjustable jacking 3 is preliminarily adjusted to the position of the supporting point of the arc-shaped main beam 1.
The elevation numerical value of the key point of the arched top plate is the elevation of the supporting point of the adjustable jacking 3 of the first-span vertical rod at two sides and the elevation of the supporting point of the adjustable jacking 3 at the arch top line, and the elevation of each point can be calculated by drawing an accurate elevation map through CAD.
The adjustable jacking 3 consists of a screw rod, a supporting plate and an adjusting nut, wherein the adjusting nut is in a long and labor-saving structure form of a handle.
S3, installing the arc main beam and the small beam: firstly, an arc-shaped main beam 1 is erected at the elevation of a supporting point of an adjustable jacking 3, the adjustable jacking 3 supporting plate is supported at the central position of right-angle supporting section steel 1-3 of the arc-shaped main beam, and then a small beam 2 is erected at a positioning baffle 1-1 of the arc-shaped main beam in sequence.
The longitudinal distance of the arc-shaped main beam 1 can be adjusted according to a scheme and the actual situation on site.
S4, mounting a bottom template: firstly, the wood formworks 7-1 are assembled block by block, the height of the wood formworks 7-1 is finely adjusted by utilizing the adjustable jacking 3 edges and the installation edges, the arching height needs to be reserved, and the arching height is 1/1000-3/1000 of the span. Then, adopting woodwork nails to firmly nail the lower opening of the template seam by using a patchwork batten 7-3, then using a lock joint batten 7-2 to tie the arc main beam (main edge) 1 and firmly nailing the arc main beam on the patchwork batten 7-3 by using woodwork nails, thereby playing the roles of preventing the template from shifting and shaping the template, and finally, in order to ensure the slurry leakage at the template seam, a transparent adhesive tape 7-47-4 is bonded at the upper opening of the seam in a full length mode.
The wood template 7-1 is a small-curvature wood template, and the thickness of the common template is 12mm.
And selecting, manufacturing and installing the wood beam according to the size of the wood beam on site.
After the wood formwork 7-1 is installed and reinforced, holes are drilled according to the arrangement intervals of the counter-pulling screws 5, and the arrangement interval is generally 450mm multiplied by 450mm.
And then, rechecking the elevation of the wood template 7-1, and after the wood template 7-1 is reinforced, rechecking the elevation of the wood template 7-1 by using a level gauge, and performing fine adjustment by using a jacking adjusting nut.
S5, installing steel bars: the reinforcement is similar with ordinary floor ligature, nevertheless because of the roofing is the arc, and the board is horizontal (the cast-in-place structure roof span direction of arch) reinforcing bar need be according to different position radians do the preflex and handle and number, and vertical and horizontal reinforcing bar cross connection point is full pricked, must not appear leaking prick, jump prick phenomenons such as prick, when the slope is great, should take welding or cover letter to connect, and the interval of cushion should not be greater than 1 mx 1m, places in reinforcing bar handing-over point position, should fix with the steel bar connection when the slope is great in order to prevent the landing.
The cushion block is a prefabricated groove cement cushion block, an embedded iron wire is arranged in the middle of the cushion block, and the iron wire can be connected and fixed with the steel bar to prevent slipping.
S6, mounting a top template structure: and cutting the vibrating port 8-2 in advance according to the reserved position of the vibrating port 8-2. And then assembling the top templates 8-1 block by block and span by span, after each span of templates is installed, timely performing elevation recheck by pulling through a longitudinal horizontal line, firmly fixing the template joints by using carpenter nails 8-4, wherein the top templates 8-1 do not need to form a fully-closed type, the number of the installed closed spans of the top templates 8-1 can be determined according to the radian of the circular arch cast-in-place structure, and the number of the closed spans is generally determined to the positions of two sides of an arch crown line at each span. When the wall formwork is dismantled, a row of wall formworks 9 at the top are reserved and are not dismantled, the wall formwork is connected with the first cross-over wood formwork 7-1 at the bottommost and the first cross-over top formwork 8-1, joints are firmly nailed by carpenter nails 8-4, and the circular arch formwork is supported. If gaps exist between the wood formwork 7-1 and the wall formwork, the gaps can be plugged by foam rubber.
The vibrating opening 8-2 is reserved with the size of 20cm multiplied by 25cm, one vibrating opening is reserved every two span templates at the transverse interval, and one vibrating opening 8-2 is reserved every two span templates in the vertical direction. The vibrating port 8-2 is cut at an oblique angle of 45 degrees relative to the top template 8-1, so that the oblique angle vibrating port template 8-3 is convenient to mount during sealing, the oblique angle vibrating port template 8-3 is prevented from sinking, concrete leakage can be prevented, the phenomenon that the vibrating is not in place is avoided, and the forming quality of the concrete is ensured.
The radian of the arch cast-in-place structure is small, the smaller the radian is, the fewer the cutting spans of the vibrating openings 8-2 are, and the larger the radian is, the more the cutting spans of the vibrating openings 8-2 are.
S7, back ridge installation: after the top formwork 8-1 is installed, the pull screw rods 5 are installed according to screw rod holes, then the longitudinal back ridges and the transverse back ridges are sequentially installed, the formwork and the back ridges 6 are integrally and firmly connected, wherein the transverse back ridges 6 need to be tightly attached to the top formwork 8-1, the curvature of the top formwork 8-1 meets the requirement of a design drawing, and therefore the concrete forming curve effect is guaranteed.
The transverse back edge 6 is an arc round steel back edge, a hydraulic pipe bender can be used for bending a round steel pipe on a construction site, and the curvature is bent according to the surface radian of the top template 8-1.
S8, pouring template concrete: the mode of sectional pouring is adopted, the pouring height of each section is a transverse one-span formwork, the two sides of the circular arch are symmetrically poured, the whole construction is completed by one-time pouring, and the mode of pouring and vibrating is adopted, so that the concrete is guaranteed to be vibrated compactly. And after the concrete on the right side of the circular arch is poured for one span, beginning to pour the concrete on the left side of the circular arch, simultaneously sealing the mold by using the right vibrating port 8-2, and so on. Then, the template 8-3 with the bevel angle of 45 degrees is placed on the vibrating opening 8-2, and the woodworking nails 8-4 and the two battens are used for nailing and fixing.
Wherein, the oblique angle vibrating port template 8-3 is a template reserved when a common cutting machine is used for obliquely cutting the vibrating port 8-1 against the top template 8-1.
And repeating the pouring and mold sealing of the S8 until the to-be-poured circular arch is completely poured.
Claims (8)
1. The utility model provides a cast-in-place structure template of straight wall dome, includes curved top form structure and die block board, still including being used for supporting arc girder, trabecula, the support of top form the full hall of arc girder supports the support body, to drawing screw rod and support the back of the body of top form is stupefied, a serial communication port, the full hall supports the indulges a top of support body and is equipped with adjustable top support, the arc girder includes and waits to water the arc shaped steel that the dome radian matches, the bottom of arc shaped steel corresponds the position that adjustable top supported is equipped with right angle support shaped steel, the top of arc shaped steel is equipped with a plurality of and is used for spacingly the positioning baffle of trabecula.
2. The template of claim 1, wherein the bottom template comprises a plurality of wooden templates matched with the radian of the arc-shaped steel, splicing battens are arranged at the bottoms of the joints of two adjacent wooden templates, the lengths of the splicing battens are shorter than the distance between the two arc-shaped main beams, the bottoms of the splicing battens are connected to the arc-shaped main beams through fastening battens with the lengths longer than the distance between the two arc-shaped main beams in a pulling mode, and the wooden templates, the splicing battens and the fastening battens are fastened to one another through wood nails.
3. The formwork of claim 1, wherein the positioning baffle is a steel sheet with an inverted 7 shape fixed on the top of the arc-shaped steel section at equal intervals by welding.
4. The vertical wall circular arch cast-in-place structural formwork of claim 1, wherein the adjustable top support comprises a screw rod, a supporting plate and an adjusting nut, the screw rod is in threaded connection with the top end of the longitudinal frame and is locked on the top end of the longitudinal frame through the adjusting nut, and the supporting plate is fixed on the top of the screw rod.
5. The vertical wall circular arch cast-in-place structural formwork of claim 1, wherein the top surface of the top formwork is provided with a vibrating port, the size of the vibrating port is 20cmX cm, and the vibrating port and the plate surface of the top formwork form an included angle of 45 degrees.
6. The formwork of claim 5, wherein the tamping port is sealed by an oblique angle tamping port formwork matched with the shape of the tamping port, two fixing battens are adhered to two ends of the outer side of the oblique angle tamping port formwork, and the fixing battens are tightly fixed on the top formwork and the oblique angle tamping port formwork through wood nails.
7. An installation method using the vertical wall circular arch cast-in-place structure formwork as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
s1, prefabricating an arc-shaped main beam, processing arc-shaped steel according to the bottom surface radian of a to-be-poured circular arch, and welding right-angle supporting steel and a positioning baffle on the arc-shaped steel to manufacture the arc-shaped main beam;
s2, erecting a support frame body, arranging a longitudinal frame of the full-space support frame body according to the position of the right-angle support section steel, arranging an adjustable jacking on the top of the longitudinal frame, and adjusting the height of the screw rod until reaching the elevation position capable of supporting the arc-shaped main beam;
s3, installing an arc-shaped main beam and small beams, erecting the arc-shaped main beam on the top of the adjustable jacking, and then sequentially erecting the small beams on the positioning baffle;
s4, mounting bottom templates, namely assembling a plurality of wood templates one by one to form the bottom templates, finely adjusting the height by using the adjustable jacking under the condition of reserving the arching height, then arranging splicing battens between the bottom of the joint of the adjacent wood templates and two arc-shaped main beams, firmly nailing the splicing battens on the wood templates through carpenter nails, fixing the fastening battens at the bottoms of the splicing battens through the carpenter nails to tie the arc-shaped main beams, finally, bonding transparent adhesive tapes at the upper opening positions of the joints in a through-length mode, splicing the bottom of the bottom template at the lowest end with the wall template reserved below, and firmly nailing the joints through carpenter nails and adopting foam adhesive plugs for seaming;
s5, installing reinforcing steel bars, and binding longitudinal and transverse reinforcing steel bars on the upper part of the bottom template;
s6, mounting a top template structure, cutting a vibration port on the surface of the top template, assembling the top template piece by piece and step by step above the reinforcing steel bars, nailing the joints of the templates by woodwork nails, splicing the bottom of the top template at the lowest end with a wall template reserved below, nailing the joints by the woodwork nails and plugging seams by foam adhesive;
s7, mounting back edges, namely mounting a longitudinal back edge and a transverse back edge on the top of the top template;
and S8, concrete pouring, namely symmetrically performing sectional pouring on two sides of the circular arch to be poured, vibrating while pouring, simultaneously plugging a template into the vibrating port every time one section of pouring vibrating is completed, and firmly nailing at least two woodworkers outside the template through woodwork nails to seal the template.
8. The method for installing a vertical wall and circular arch cast-in-place structural formwork of claim 7, wherein in S6, the top formwork is cut with one vibrating port every two spans in the transverse direction, and one vibrating port is cut with each top formwork in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525296.XA CN115749250A (en) | 2022-11-30 | 2022-11-30 | Straight wall circular arch cast-in-place structure template and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525296.XA CN115749250A (en) | 2022-11-30 | 2022-11-30 | Straight wall circular arch cast-in-place structure template and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115749250A true CN115749250A (en) | 2023-03-07 |
Family
ID=85341805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211525296.XA Pending CN115749250A (en) | 2022-11-30 | 2022-11-30 | Straight wall circular arch cast-in-place structure template and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115749250A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971798A (en) * | 2023-07-31 | 2023-10-31 | 中铁隧道集团二处有限公司 | Arch tunnel structure and arch tunnel construction method |
| CN117627685A (en) * | 2024-01-25 | 2024-03-01 | 中铁十五局集团有限公司 | Adjustable formwork structure of large-span non-column arc-shaped top plate of subway station |
| CN117627044A (en) * | 2024-01-25 | 2024-03-01 | 中铁十五局集团有限公司 | Construction method of arc-shaped top plate of large-span non-column arc-shaped subway station in hard rock stratum |
-
2022
- 2022-11-30 CN CN202211525296.XA patent/CN115749250A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971798A (en) * | 2023-07-31 | 2023-10-31 | 中铁隧道集团二处有限公司 | Arch tunnel structure and arch tunnel construction method |
| CN116971798B (en) * | 2023-07-31 | 2024-05-10 | 中铁隧道集团二处有限公司 | Arch tunnel structure and arch tunnel construction method |
| CN117627685A (en) * | 2024-01-25 | 2024-03-01 | 中铁十五局集团有限公司 | Adjustable formwork structure of large-span non-column arc-shaped top plate of subway station |
| CN117627044A (en) * | 2024-01-25 | 2024-03-01 | 中铁十五局集团有限公司 | Construction method of arc-shaped top plate of large-span non-column arc-shaped subway station in hard rock stratum |
| CN117627685B (en) * | 2024-01-25 | 2024-04-02 | 中铁十五局集团有限公司 | Adjustable formwork structure of large-span non-column arc-shaped top plate of subway station |
| CN117627044B (en) * | 2024-01-25 | 2024-04-02 | 中铁十五局集团有限公司 | Construction method of arc-shaped top plate of large-span non-column arc-shaped subway station in hard rock stratum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115749250A (en) | Straight wall circular arch cast-in-place structure template and installation method thereof | |
| CN103370484B (en) | Installation foundation | |
| CN201649633U (en) | Steel formwork for forming building stair treads | |
| CN104763143A (en) | Pitched roof template system | |
| CN113914605B (en) | Assembling method of special-shaped double-curved-surface bare concrete wall | |
| CN100460615C (en) | Three dimension arch steel concrete structure formwork and construction method | |
| CN110409811B (en) | Non-dismantling forming column template containing reinforcement cage, template structure and building process | |
| CN110409813B (en) | Non-dismantling forming beam template containing reinforcement cage, template structure and building process | |
| CN105544887A (en) | Upturned roof-ridge cornice of Tang style simulation building and construction method thereof | |
| MXPA03001387A (en) | Lightweight building component. | |
| CN206396966U (en) | A kind of assembled laminated floor slab plate seam node component | |
| CN113202181B (en) | Simple and accurate manufacturing method of arc-shaped edge sealing template | |
| CN206110331U (en) | Prefabricated assembly building of lightweight steel construction lightweight concrete | |
| CN211421637U (en) | Connecting structure of prefabricated gutter | |
| JP2915897B1 (en) | Building construction method | |
| CN215670408U (en) | Node connection structure of rib-outlet composite floor slab and cast-in-situ beam | |
| CN110725475A (en) | Prefabricated column with built-in high-corrugated pipe, frame structure of prefabricated column and construction method of prefabricated column | |
| CN216142396U (en) | Adjustable template unit of arc-shaped shear wall and adjustable template of arc-shaped shear wall | |
| CN110761559A (en) | Method for fixing concrete pouring template of inclined roof | |
| CN215443115U (en) | Constructional column template fixing device | |
| CN212388856U (en) | Cast-in-place clear water concrete batter post structure of prestressing force | |
| CN211447283U (en) | Connecting beam of main building and skirt house | |
| CN113323131A (en) | Assembly type construction method for archaized building | |
| JP7264690B2 (en) | METHOD FOR MANUFACTURING CONCRETE WALL STRUCTURE AND BUILDING STRUCTURE | |
| CN218437815U (en) | Accurate location construction auxiliary device of frame node core area stirrup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |