CN115369748B - Construction method of formwork system for integrally pouring bridge pier and tie beam - Google Patents
Construction method of formwork system for integrally pouring bridge pier and tie beam Download PDFInfo
- Publication number
- CN115369748B CN115369748B CN202211137288.8A CN202211137288A CN115369748B CN 115369748 B CN115369748 B CN 115369748B CN 202211137288 A CN202211137288 A CN 202211137288A CN 115369748 B CN115369748 B CN 115369748B
- Authority
- CN
- China
- Prior art keywords
- tie beam
- pier
- bridge pier
- climbing
- template
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 92
- 238000009415 formwork Methods 0.000 title claims description 25
- 230000009194 climbing Effects 0.000 claims abstract description 102
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 13
- 230000008093 supporting effect Effects 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 230000001976 improved effect Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge pier column construction, and particularly discloses a template system construction method for integrally pouring a pier and a tie beam, wherein S1 and pier column construction are carried out; s2, embedding a bearing upright post: when the pier column of the section before the tie beam is poured is constructed, at least two vertical bearing upright columns are embedded, and the top of each bearing upright column can be propped against and fixed with the bottom of the transverse cantilever beam of the climbing frame; s3, dismantling opposite pier side dies on the pier column and fixedly connecting upright columns on the climbing frame; s4, installing a tie beam bracket: the tie beam support is assembled into a whole on the ground, then is hoisted beside the connecting upright post, and the connecting upright post is fixedly connected with four corner positions of the tie beam support; s5, splicing the bridge pier and the tie beam templates into a whole: fixedly connecting a tie beam side die with a bridge pier side die; s6, placing steel bars in the pier-tie beam integrated template and pouring. The scheme is used for solving the problems that bridge pier appearance damage and high construction danger exist in bridge construction by constructing a bridge construction platform through a penetrating rod in the prior art.
Description
Technical Field
The invention relates to the technical field of bridge pier column construction, in particular to a template system construction method for integrally pouring piers and tie beams.
Background
The mature technology of high pier construction mainly comprises a climbing formwork, a sliding formwork and a turnover formwork, wherein the climbing formwork is a short name of a climbing formwork and consists of a climbing formwork, a climbing frame (the climbing formwork also comprises no climbing frame) and climbing equipment, the climbing formwork construction has high requirements on initial concrete setting control, and an embedded part is easy to destroy newly poured concrete. The slip form not only comprises a common or special tool type template, but also comprises comprehensive technologies such as a power slip lifting device and a matched construction process, wherein hydraulic lifting devices are mainly used as slip lifting power, under the synchronous action of groups of lifting devices, a climbing system and the tool type template with the height of one meter are driven to climb along a climbing rod installed in a pier column, the template slides along the surface of the concrete which is just formed in the climbing process, and the slip form construction has higher requirements on the concrete and is difficult to control the appearance. The turnover formwork refers to a tripod turnover formwork construction process, is evolved from a traditional slip form, and is widely applied to the construction of high piers.
For high pier or super high pier construction, in order to improve the stress structure of pier columns, tie beams which play a role of pull rods are often required to be arranged between two or three pier columns, and the tie beams can connect adjacent pier columns into integral stress, so that the integral rigidity of the pier columns is enhanced. And pouring pier columns in a conventional construction mode of the tie beam, and erecting a tie beam construction platform between the two pier columns for tie beam construction after the pier columns are constructed. For the condition of lower tie beam height, a full framing can be erected as a support system for tie beam construction; in the prior art, a mode of embedding a core rod is adopted, namely, PVC pipes are embedded at the same height of two pier columns needing to be processed, after the strength of the two pier columns meets the requirement, the core rod is inserted into the PVC pipe of each pier column through lifting workers by manual cooperation operation, jacking equipment is arranged above two ends of the core rod extending out of the pier columns, two large supporting beams are supported by the jacking equipment on the core rod, a plurality of distribution beams are paved between the two large supporting beams, and a tie beam template (the distribution beams and the supporting beams form the tie beam support) is supported by the distribution beams; in the construction mode, a construction platform is not arranged when the penetrating rod is installed, and the construction platform is also not arranged when the penetrating rod is detached, so that the risk is high.
Disclosure of Invention
The invention aims to provide a template system construction method for integrally pouring piers and tie beams, which aims to solve the problems of appearance damage of piers and higher construction danger in the prior art that a tie beam construction platform is built by using a penetrating rod for tie beam construction.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The construction method of the template system for integrally pouring the bridge pier and the tie beam comprises the steps that a bridge pier template, a climbing system, a tie beam support and the tie beam template are needed to be used, the bridge pier template comprises a plurality of bridge pier side templates which are detachably connected, and all bridge pier side templates can be surrounded to form a bridge pier column of the bridge pier after being connected; the climbing system comprises a jacking device, a climbing frame, a ring beam and an operation platform, wherein the jacking device is connected with the climbing frame and drives the climbing frame to climb, the ring beam is fixed on the climbing frame, and the operation platform is fixed on the ring beam; the tie beam template comprises a tie beam bottom die and tie beam side dies positioned at two sides of the bottom die; the method also comprises the following construction steps:
S1, pier column construction: when the bottom joint pier column is constructed, a climbing rod is installed in the pier column, the climbing rod is heightened section by section along with the rising of the pier column, jacking equipment is installed on the climbing rod, the climbing frame is driven by the jacking equipment to climb along the climbing rod, before climbing, the pier side mould is separated from the poured pier column, and after the climbing system finishes climbing, the pier side mould is propped against the pier column to form a complete pier template for pouring;
S2, embedding a bearing upright post: when the pier column of the section before the tie beam is poured is constructed, at least two vertical bearing upright posts are embedded, the climbing frame comprises a plurality of cross cantilever beams, the plurality of cross cantilever beams are arranged transversely and longitudinally and are in a well shape, and the top of each bearing upright post can be propped against and fixedly connected with the bottom of at least one cross cantilever beam on the climbing frame;
S3, dismantling opposite pier side dies on the pier column, and fixedly connecting upright posts on the climbing frame, wherein the connecting upright posts are positioned on the outer sides of the piers;
S4, installing a tie beam bracket: the tie beam brackets are assembled into a whole on the ground, then are hoisted beside the connecting upright posts, and can be manually stood on an operation platform to fixedly connect the connecting upright posts with the four corner positions of the tie beam brackets;
s5, splicing the bridge pier and the tie beam templates into a whole: hoisting and placing the tie beam templates assembled into a whole on a tie beam bracket, transversely parallel to the bridge body, and fixedly connecting two ends of the tie beam side templates with adjacent bridge pier side templates to form an integrated template containing bridge piers and tie beams;
S6, placing steel bars in the pier-tie beam integrated template and pouring.
The principle and the advantages of the scheme are as follows: during practical application, this scheme is when carrying out the tie beam and pour, can be pre-buried on operation platform when the bearing stand installation, as long as after the bearing stand satisfies the intensity requirement, can increase the bearing stand to make bearing stand top offset with the cross cantilever bottom, then fixed bearing stand and cross cantilever, so that the bearing stand supports the cross cantilever. The tie beam support is suspended and supported through the climbing frame and the connecting upright post, so that the tie beam template and the tie beam in the construction process are supported conveniently through the tie beam support; when the connecting upright post is connected with the climbing frame, the connecting upright post can be manually stood on the well-shaped climbing frame or the operating platform for mounting, and the connecting upright post can be manually stood on the operating platform for fixedly connecting the connecting upright post with four corner positions of the tie beam bracket; the whole construction process of the bearing upright post, the connecting upright post and the fixed connection with the tie beam bracket adopted for supporting the tie beam template is supported by an operation platform or a well-shaped climbing frame, and the situation that the construction danger is caused by no operation platform due to a penetrating rod type construction mode in the prior art does not exist. In addition, after the tie beam construction is accomplished, only need demolish tie beam template, tie beam support and connect the stand can, the bearing stand only demolish with the connection of cross cantilever and continue to stay on the pier stud can, need not to dismantle the bearing stand, reduced manual operation cost, the bearing stand embeds on the pier stud simultaneously, is favorable to improving the intensity of pier stud. Meanwhile, the pier templates and the tie beam templates are connected into a whole, so that the integral construction of the pier column and the tie beam is facilitated, and the integral pier strength of the tie beam and the pier column is improved.
In addition, in this scheme, the mode of turning over that will construct high mound (namely the mode that the pier template breaks away from pier column surface) has combined with the slipform mode (adopt jacking equipment and climb the mode that the frame climbs) for bridge mound side form only pastes with the pier column and can not slide along pier column surface when pouring the pier column in the whole pier column construction, so ensured the outward appearance of pier column after the pier shaping, also need not simultaneously like the construction mode of penetrating the stick prefabricated horizontally PVC pipe, also can not cause the damage to the outward appearance of pier column. Meanwhile, the sliding mode is utilized to drive the whole climbing system to lift so as to reduce the problem of frequent disassembly and assembly of the operation platform during the existing mold turning, thereby being beneficial to reducing the construction steps and shortening the construction time.
In addition, in the scheme, the bearing upright post capable of bearing is embedded on the pier column of the previous section of tie beam construction, the bearing upright post jacks up the cross cantilever beam on the climbing frame, when the bridge pier and the tie beam are integrally constructed, the weight of the tie beam is shared by the existing bearing upright post, and is shared to each jacking device connected with the climbing frame through the cross cantilever beam, and the jacking device acts on the corresponding climbing rod, so that the weight born by the tie beam construction is simultaneously supported by the bearing upright post and the climbing rods, and the safety of integral construction of the tie beam and the bridge pier is ensured.
Preferably, as an improvement, the pier side mold is connected with the climbing frame through a shifter, and the shifter drives the pier side mold to be far away from or close to the surface of the pier column.
The beneficial effects are that: according to the scheme, the setting of the shifter is adopted, so that in the pier column pouring process, the pier side mold separated from the pier surface is not required to be lifted to the ground, only the pier side mold is required to be hung and is not attached to the pier column so as to facilitate climbing of a climbing system, after climbing is completed, the pier side mold is attached to the pier column by the shifter, so that a plurality of pier side molds are enclosed to form a complete pier template, the construction operation of the whole pier column is simpler and faster, and the time consumption of pier column construction is reduced.
Preferably, as an improvement, the bridge pier side mold further comprises a steel plate and a back edge, wherein the back edge comprises a horizontal back edge and a vertical back edge, and the horizontal back edge and the vertical back edge are fixedly connected with the steel plate.
The beneficial effects are that: the horizontal back edge and the vertical back edge are arranged on the bridge pier side mold, so that the strength and the rigidity of the bridge pier side mold can be increased, lateral pressure generated in the construction casting process is resisted, and the construction safety and the construction quality are ensured.
Preferably, as an improvement, the climbing frame is rotatably connected with a tightening rod capable of adjusting the length, and the other end of the tightening rod is rotatably connected with the bridge pier side die.
The beneficial effects are that: according to the design of the abutting rod with the adjustable length, the abutting rod with the adjustable length can be reused after the movable device drives the pier side die to move to the target position, the pier side die is abutted to the pier column, the laminating effect of the pier side die and the pier column is improved, and the slurry leakage probability in the pier column pouring process is reduced.
Preferably, as an improvement, the tie beam template further comprises a tie beam end die, wherein the tie beam end die is fixedly connected with the end parts of the tie beam side die and the tie beam bottom die at the same time, extends outwards of the tie beam bottom die, can be attached to the pier column, and can be detachably connected with the pier side die.
The beneficial effects are that: according to the scheme, the tie beam end die is arranged, so that the tie beam die plate can be assembled on the ground, the tie beam die plate is lifted to the construction height after being assembled, the tie beam die plate and the pier column are aligned quickly through the tie beam end die on the tie beam die plate, the quick butt joint and installation of the tie beam die plate and the pier side die are facilitated, and the installation and detachment time of the pier-tie beam integrated die plate is saved.
In addition, the arrangement of the tie beam end molds extending to the outer sides of the tie beams ensures that the tie beam bottom molds between the tie beam end molds at the two ends of the tie beam mold plates can be exactly supported by the tie beam brackets, thereby providing a supporting space for the tie beam brackets to support the tie beam mold plates.
Preferably, as an improvement, the tie beam support comprises two supporting beams and a plurality of distributing beams, wherein the distributing beams are fixed above the two supporting beams, the tie beam template can be placed on the distributing beams, and the supporting beams are fixedly connected with the connecting upright posts.
The beneficial effects are that: the tie beam bracket can be assembled on the ground, and then is integrally hoisted after the assembly is completed, so that the quick installation of the tie beam bracket is convenient.
Preferably, as an improvement, the ring beam comprises a plurality of sub ring beams, adjacent sub ring beams are detachably connected, and the pier column is enclosed after all sub ring beams are connected.
The beneficial effects are that: according to the scheme, through structural improvement of the ring beam, the ring beam can be an integral body formed by encircling all sub ring beams, and also can be a single sub ring beam which is convenient to disassemble and assemble with other sub ring beams, so that the requirement on hoisting equipment during ring beam installation is reduced (if single ring beam hoisting is lower than the requirement on hoisting equipment).
Preferably, as an improvement, the operation platform comprises a construction operation platform and a template mounting and dismounting operation platform, wherein the construction operation platform is positioned above the ring beam, the template mounting and dismounting operation platform is positioned below the ring beam, the template mounting and dismounting operation platform comprises a detachable sub-platform and a fixed sub-platform, the detachable sub-platform is detachably connected with the fixed sub-platform and the ring beam, the fixed sub-platform is fixedly connected with the ring beam, and the detachable sub-platform is longitudinally parallel to the bridge body; the top of the pier template is lower than the bottom of the ring beam during pouring.
The beneficial effects are that: according to the technical scheme, the concrete limitation on the operation platform is adopted, so that construction can be performed on the construction operation platform, when the pier side forms are required to be disassembled, the construction can be performed on the template mounting and dismounting operation platform, and the pier side forms required to be disassembled can be conveniently and directly disassembled manually without using hoisting equipment; in addition, before the tie beam support is installed, the connecting upright post and the climbing frame are fixedly connected by utilizing the template mounting and dismounting operation platform, the detachable sub-platform is dismounted, a space is reserved for connecting the tie beam template and the pier template, and meanwhile, workers can also stand on the fixed sub-platform to fixedly install the tie beam support and the connecting upright post, so that the platform can stand in the construction process.
Drawings
Fig. 1 is a schematic diagram of a bridge pier template structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a bridge pier template according to an embodiment of the present invention after one of the bridge pier side forms is removed.
Fig. 3 is a schematic view of the climbing system according to an embodiment of the present invention without the operating platform.
Fig. 4 is a schematic structural view of fig. 3 after one of the sub-ring beams is detached.
Fig. 5 is a schematic cross-sectional view of a longitudinal pier shaft of the climbing system according to the embodiment of the invention when pouring a pier stud.
Fig. 6 is a top view of a module attaching and detaching operation platform according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of the abutment lever in fig. 5.
Fig. 8 is a schematic structural view of a tie beam template according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram corresponding to step S1 and hiding the operation platform according to an embodiment of the present invention.
Fig. 10 is a schematic top view of the operation platform, pier stud and pier template for installing and removing the template in step S1 according to the embodiment of the present invention.
Fig. 11 is a schematic structural diagram corresponding to step S2 and hiding the operation platform according to an embodiment of the present invention.
Fig. 12 is a schematic structural diagram corresponding to step S3 and hiding the operation platform according to an embodiment of the present invention.
Fig. 13 is a schematic structural diagram of the embodiment of the present invention corresponding to step S4 and hiding the operation platform and the hidden part ring beam.
Fig. 14 is a schematic structural diagram of the embodiment of the present invention corresponding to step S5 and hiding the operation platform and the hidden part ring beam.
Fig. 15 is a schematic top view of the operation platform, pier stud, pier template, and tie beam template for installing and removing the template in step S5 according to the embodiment of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: bridge pier template 10, bridge pier side form 1, steel plate 11, back rib 12, tie rod 13, climbing system 20, climbing frame 21, cantilever beam 211, diagonal brace 212, vertical beam 213, support rod 214, screw rod 2141, installation sleeve 2142, ring beam 22, jack 23, construction operation platform 24, template mounting and dismounting operation platform 25, upper platform 251, lower platform 252, support beam 31, distribution beam 32, tie beam template 40, tie beam side form 41, tie beam bottom form 42, tie beam end form 43, climbing rod 50, load-bearing upright 60, connection upright 70, pier column 100.
An embodiment is substantially as shown in figures 1 to 15:
In the construction method of the template system for integrally pouring the bridge pier and the tie beam, a bridge pier template 10, a climbing system 20, a tie beam bracket and a tie beam template 40 are needed, and referring to fig. 1 and 2, the bridge pier template 10 comprises a plurality of bridge pier side templates 1 which are detachably connected, and the bridge pier side templates 1 can be surrounded into a bridge pier column 100 of the bridge pier after being connected; the bridge pier side die 1 further comprises a steel plate 11 and a back ridge 12, the back ridge 12 comprises a horizontal back ridge 12 and a vertical back ridge 12, and the horizontal back ridge 12 and the vertical back ridge 12 are fixedly connected with the steel plate 11; after the pier stud 100 is enclosed by the opposite pier side forms 1, the connection strength between the opposite pier side forms 1 can be enhanced by installing the opposite tie bars 13 on the opposite pier side forms 1.
Referring to fig. 3 to fig. 7, the climbing system 20 includes a jacking device, a climbing frame 21, a ring beam 22, and an operation platform, wherein the jacking device is connected with the climbing frame 21, and drives the climbing frame 21 to climb (in this embodiment, the jacking device adopts a jack 23 with a hydraulic pump), and referring to fig. 3 and fig. 4, the ring beam 22 is fixed on the climbing frame 21, and the operation platform is fixed on the ring beam 22; in order to enhance the strength between the components in the construction stage, the two components connected by the bolts can be temporarily fixedly connected by adopting a mode of welding the reinforcing plate, and when the reinforcing plate needs to be removed, the reinforcing plate is cut and removed.
Specifically, the climbing frame 21 includes a plurality of cross-cantilever beams 211, and the plurality of cross-cantilever beams 211 are arranged horizontally and longitudinally and are shaped like a well, and the adjacent cross-cantilever beams 211 are welded. The ring beams 22 comprise a plurality of sub ring beams 22, adjacent sub ring beams 22 are connected through bolts, the pier column 100 is enclosed after all sub ring beams 22 are connected, all sub ring beams 22 are connected with the climbing frame 21 (diagonal braces 212 and vertical beams 213 are welded on the climbing frame 21 to form a triangle, and the diagonal braces 212 and the vertical beams 213 are fixedly connected with the sub ring beams 22); referring to fig. 5 and 6, the operation platform includes a construction operation platform 24 and a template mounting and dismounting operation platform 25, the construction operation platform 24 is fixed above the ring beam 22, the template mounting and dismounting operation platform 25 is located below the ring beam 22, the template mounting and dismounting operation platform 25 includes a detachable sub-platform and a fixed sub-platform, the detachable sub-platform is connected with the fixed sub-platform and the ring beam 22 through bolts, the fixed sub-platform is fixedly connected with the ring beam 22, and the detachable sub-platform is longitudinally parallel to the bridge body; the pier form 10 is lower at the top than the bottom of the ring beam 22 when poured. In order to facilitate repairing the surface of the pier column 100 after construction, the template mounting and dismounting operation platform 25 can be made into a double-layer structure (an upper layer platform 251 and a lower layer platform 252), and the upper layer structure and the lower layer structure are identical, as shown in fig. 5, so that the operation of workers is facilitated, and meanwhile, the lower layer platform 252 can be designed to be lower than the pier side die 1, so that the workers can conveniently repair the surface of the pier column 100 on the template mounting and dismounting operation platform 25.
Referring to fig. 5 and 7, a length-adjustable abutment lever 214 is rotatably connected to the climbing frame 21, and the other end of the abutment lever 214 is rotatably connected to the bridge pier side form 1. The abutting rod 214 comprises a screw rod 2141 and mounting sleeves 2142 mounted at two ends of the screw rod 2141, two threaded sections with opposite spiral directions are processed on the screw rod 2141, the two mounting sleeves 2142 are respectively connected to the two different threaded sections in a threaded manner, one of the two mounting sleeves 2142 is rotatably connected to the climbing frame 21, and the other mounting sleeve 2142 is rotatably connected to the pier side die 1; a radial through hole is formed between the two thread segments, so that a worker can conveniently insert a force application rod into the through hole, and then rotate the screw rod 2141, and after the screw rod 2141 rotates, the two mounting sleeves 2142 are mutually close to shorten the tightening rod 214 or the two mounting sleeves 2142 are mutually far away to lengthen the tightening rod 214; the side compressive capacity of the pier side form 1 is improved by the extension of the abutment rod 214 to make the gap between the pier side form 1 and the pier column 100 smaller.
The bridge pier side mold 1 is connected with the climbing frame 21 through a shifter, the shifter drives the bridge pier side mold 1 to be far away from or close to the surface of the pier column 100, and the shifter drives the bridge pier side mold 1 to be far away from the pier column 100, so that the bridge pier template 10 is separated from the pier column 100; in this embodiment, the shifter may be a traveling carriage (not shown in the drawings), the traveling carriage is fixed on the climbing frame 21, and the pier side form 1 is fixed at the output end of the traveling carriage. Before the pier side form 1 on the pier column 100 needs to be removed, the connection between the abutting rod 214 and the pier side form 1 needs to be released, and then the pier side form 1 is driven by the moving trolley to be far away from the pier column 100.
The tie beam support includes two support beams 31 and a plurality of distribution beams 32, the plurality of distribution beams 32 being fixed above the two support beams 31.
Referring to fig. 8, the tie beam die plate 40 includes a tie beam die block 42, tie beam side dies 41 located on both sides of the die block, and a tie beam end die 43 fixedly connected to the tie beam side dies 41 and the ends of the tie beam die block 42, the tie beam end die 43 extending outward of the tie beam die block 42, the tie beam end die 43 being capable of being attached to the pier column 100, the tie beam end die 43 being capable of being bolted to the pier side die 1; the method also comprises the following construction steps:
S1, pier column 100 construction: during construction of the bottom joint pier stud 100, the climbing rod 50 is installed in the pier stud 100, the climbing rod 50 is heightened section by section along with the rising of the pier stud 100, the jacking equipment is installed on the climbing rod 50, the climbing frame 21 is driven by the jacking equipment to climb along the climbing rod 50, before climbing, the installation sleeve 2142 of the abutting rod 214 is detached from the pier side die 1, the pull rod 13 between the opposite pier side dies 1 is detached, then the moving trolley is started, the pier side dies are driven to be separated from the poured pier stud 100 by the moving trolley, after the climbing system 20 finishes climbing, the moving trolley is started again, the moving trolley abuts against the pier side dies 1 and the pier stud 100, the pull rod 13 is installed, and the abutting rod 214 is installed, so that the pier side dies 1 are fastened and the complete pier template 10 for pouring is formed. Fig. 9 is a schematic plan view of the operation platform 25, the pier 100 and the pier template 10 when 3 piers 100 are constructed (the operation platform in the drawing is hidden for easy understanding) in this embodiment, which is exemplified by a construction of 3 piers 100.
S2, pre-buried bearing upright post 60: when the pier column 100 of the section before the tie beam is poured is constructed, at least two vertical bearing upright columns 60 (shown in fig. 11) are embedded, and the top of each bearing upright column 60 can be propped against and fixedly connected with the bottom of at least one transverse cantilever beam 211 on the climbing frame 21; in this embodiment, the cantilever beam 211, which abuts against the bearing upright 60, is longitudinally parallel to the bridge body; in this embodiment, the bearing upright 60 is made of i-steel, and the cantilever beam 211 is made of double-spliced channel steel.
S3, dismantling the opposite pier side dies 1 on the pier column 100, dismantling the detachable sub-platforms on the opposite sides of the pier column 100 on the template mounting and dismounting operation platform 25 to make room for the installation of a subsequent tie beam bracket, and adding guardrails at the end parts of the fixed sub-platforms to ensure safety; then, connecting columns 70 are fixedly arranged at two ends of the cross cantilever 211 connected with the bearing column 60, the connecting columns 70 are positioned outside the pier, and the connecting columns 70 are I-shaped steel in the embodiment, namely, as shown in fig. 12.
After the pier side forms 1 to be disassembled are disassembled, the upright posts 70 are fixedly connected to the two ends of the cross cantilever 211 longitudinally parallel to the bridge body, the connecting upright posts 70 are fixedly hung on the cross cantilever 211, and the operation can be completed manually by standing on the construction operation platform 24.
S4, installing a tie beam bracket: the tie beam brackets which have been assembled integrally on the ground are hoisted to the side of the connecting columns 70, and a person can stand on the fixed platform of the form attaching/detaching operation platform 25 to fixedly connect the connecting columns 70 with the ends of the two support beams 31 of the tie beam brackets, so that the connecting columns 70 hang the tie beam brackets from four corners of the tie beam brackets, that is, as shown in fig. 13 (the operation platform is hidden from the drawing and the sub-ring beams 22 on the opposite sides of the pier stud 100 are hidden for easy understanding).
S5, splicing the bridge pier and tie beam templates 40 into a whole: the integrally assembled tie beam templates 40 are hoisted and placed on the tie beam brackets so that the tie beam side templates 41 are transversely parallel to the bridge body, the tie beam end templates 43 at the two ends are respectively attached to the opposite surfaces of the two pier studs 100 and fixedly connected with the adjacent pier side templates 1 on the pier studs 100, and the tie beam bottom templates 42 are placed on the distribution beams 32 of the tie beam brackets to form an integrated template containing the pier and the tie beam, that is, from fig. 13 to fig. 14. Before the tie beam is poured, a schematic top view of the formwork erection and disassembly operation platform 25, the pier stud 100, the pier formwork 10 and the tie beam formwork 40 is as shown in fig. 15.
S6, placing steel bars in the pier-tie beam integrated template and pouring.
When the bridge pier tie beam is constructed in the construction mode, the bearing upright post 60 can be pre-buried on the construction operation platform 24 when being installed, the bearing upright post 60 can be heightened as long as the bearing upright post 60 meets the strength requirement, so that the top of the bearing upright post 60 is propped against the bottom of the cross cantilever beam 211, and then the bearing upright post 60 is fixed with the cross cantilever beam 211, so that the bearing upright post 60 supports the cross cantilever beam 211; the tie beam brackets are suspended and supported through the cross cantilever beams 211 and the connecting upright posts 70, so that the tie beam templates 40 are supported through the tie beam brackets and the tie beams in the construction process are supported conveniently; when the connecting upright post 70 is connected with the climbing frame 21, the connecting upright post 70 can be installed by manually standing on the well-shaped climbing frame 21 or the construction operation platform 24, and the connecting upright post 70 can be fixedly connected with the supporting beam 31 of the tie beam bracket by manually standing on the template mounting and dismounting operation platform 25; the whole construction process of the bearing upright post 60, the connecting upright post 70 and the fixed connection with the tie beam bracket adopted for realizing the support of the tie beam template 40 is supported by the operation platform or the well-shaped climbing frame 21, so that the construction safety is ensured. In addition, after the tie beam construction is completed, only the tie beam template 40, the tie beam support and the connecting upright post 70 are required to be removed, the bearing upright post 60 is required to be removed and connected with the transverse cantilever beam 211 to be left on the pier column 100, the bearing upright post 60 is not required to be detached, the manual operation cost is reduced, and meanwhile, the bearing upright post 60 is arranged on the pier column 100, so that the strength of the pier column 100 is improved. Meanwhile, the pier templates 10 and the tie beam templates 40 are connected into a whole, so that the integral construction of the pier column 100 and the tie beam is facilitated, and the pier strength of the tie beam and the pier column 100 forming a whole is improved.
In addition, in this embodiment, the mode of turning the pier construction (i.e., the mode of separating the pier template 10 from the pier column 100 surface) and the mode of sliding the pier (the mode of climbing by the jacking equipment and the climbing frame 21) are combined, so that the pier side mold 1 is only attached to the pier column 100 when the pier column 100 is poured in the whole pier column 100 construction, and does not slide along the pier column 100 surface, thereby ensuring the appearance of the pier column 100 after the pier is formed. Meanwhile, the sliding mode is utilized to drive the whole climbing system 20 to lift so as to reduce the problem of frequent disassembly and assembly of the operation platform during the traditional die turning, thereby being beneficial to reducing the construction steps and shortening the construction time.
In addition, in this embodiment, the bearing upright posts 60 capable of bearing are embedded in the pier column 100 of the previous section of the tie beam construction, the bearing upright posts 60 jack up the cross cantilever beams 211 on the climbing frame 21, when the bridge pier and the tie beam are integrally constructed, the weight of the tie beam is shared by the existing bearing upright posts 60, and is shared by the jacking equipment connected with the climbing frame 21 through the cross cantilever beams 211, and the jacking equipment acts on the corresponding climbing rods 50, so that the weight born by the tie beam construction is supported by the bearing upright posts 60 and the climbing rods 50 at the same time, and the safety of the integral construction of the tie beam and the bridge pier is ensured.
The foregoing is merely exemplary of the present application, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, and these should also be regarded as the protection scope of the present application, which does not affect the effect of the implementation of the present application and the practical applicability of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The construction method of the template system for integrally pouring the bridge pier and the tie beam is characterized in that a bridge pier template, a climbing system, a tie beam support and the tie beam template are needed, the bridge pier template comprises a plurality of bridge pier side templates which are detachably connected, and all bridge pier side templates can be surrounded to form a bridge pier column of the bridge pier after being connected; the climbing system comprises a jacking device, a climbing frame, a ring beam and an operation platform, wherein the jacking device is connected with the climbing frame and drives the climbing frame to climb, the ring beam is fixed on the climbing frame, and the operation platform is fixed on the ring beam; the tie beam template comprises a tie beam bottom die and tie beam side dies positioned at two sides of the bottom die; the operation platform comprises a construction operation platform and a template mounting and dismounting operation platform, wherein the construction operation platform is positioned above the ring beam, the template mounting and dismounting operation platform is positioned below the ring beam, the template mounting and dismounting operation platform comprises a detachable sub-platform and a fixed sub-platform, the detachable sub-platform is detachably connected with the fixed sub-platform and the ring beam, the fixed sub-platform is fixedly connected with the ring beam, and the detachable sub-platform is longitudinally parallel to the bridge body; the top of the bridge pier template is lower than the bottom of the ring beam during pouring; the method also comprises the following construction steps:
S1, pier column construction: when the bottom joint pier column is constructed, a climbing rod is installed in the pier column, the climbing rod is heightened section by section along with the rising of the pier column, jacking equipment is installed on the climbing rod, the climbing frame is driven by the jacking equipment to climb along the climbing rod, before climbing, the pier side mould is separated from the poured pier column, and after the climbing system finishes climbing, the pier side mould is propped against the pier column to form a complete pier template for pouring;
S2, embedding a bearing upright post: when the pier column of the section before the tie beam is poured is constructed, at least two vertical bearing upright posts are embedded, the climbing frame comprises a plurality of cross cantilever beams, the plurality of cross cantilever beams are arranged transversely and longitudinally and are in a well shape, and the top of each bearing upright post can be propped against and fixedly connected with the bottom of at least one cross cantilever beam on the climbing frame;
S3, dismantling opposite pier side dies on the pier column, and fixedly connecting upright posts on the climbing frame, wherein the connecting upright posts are positioned on the outer sides of the piers;
S4, installing a tie beam bracket: the tie beam brackets are assembled into a whole on the ground, then are hoisted beside the connecting upright posts, and can be manually stood on an operation platform to fixedly connect the connecting upright posts with the four corner positions of the tie beam brackets;
s5, splicing the bridge pier and the tie beam templates into a whole: hoisting and placing the tie beam templates assembled into a whole on a tie beam bracket, transversely parallel to the bridge body, and fixedly connecting two ends of the tie beam side templates with adjacent bridge pier side templates to form an integrated template containing bridge piers and tie beams;
S6, placing steel bars in the pier-tie beam integrated template and pouring.
2. The construction method of the formwork system for integrally pouring the bridge pier and the tie beam according to claim 1, wherein the bridge pier side forms are connected with the climbing frame through a shifter, and the shifter drives the bridge pier side forms to be far away from or close to the surface of the pier column.
3. The construction method of the formwork system for integrally pouring the bridge pier and the tie beam according to claim 2, wherein the bridge pier side formwork further comprises a steel plate and a back edge, the back edge comprises a horizontal back edge and a vertical back edge, and the horizontal back edge and the vertical back edge are fixedly connected with the steel plate.
4. The construction method for the formwork system for integrally pouring the bridge pier and the tie beam according to claim 3, wherein the climbing frame is rotatably connected with a tightening rod capable of adjusting the length, and the other end of the tightening rod is rotatably connected with a side formwork of the bridge pier.
5. The construction method of the formwork system for integrally casting the bridge pier and the tie beam according to claim 1, wherein the tie beam formwork further comprises a tie beam end mold which is fixedly connected with the ends of the tie beam side mold and the tie beam bottom mold at the same time, the tie beam end mold extends outwards of the tie beam bottom mold, the tie beam end mold can be attached to the bridge pier, and the tie beam end mold can be detachably connected with the bridge pier side mold.
6. The construction method of the formwork system for integrally casting the bridge pier and the tie beam according to claim 5, wherein the tie beam bracket comprises two supporting beams and a plurality of distributing beams, the distributing beams are fixed above the two supporting beams, the tie beam formwork can be placed on the distributing beams, and the supporting beams are fixedly connected with the connecting upright posts.
7. The construction method of the formwork system for integrally casting the bridge pier and the tie beam according to claim 5, wherein the ring beam comprises a plurality of sub-ring beams, the adjacent sub-ring beams are detachably connected, and the pier column is enclosed after all the sub-ring beams are connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137288.8A CN115369748B (en) | 2022-09-19 | 2022-09-19 | Construction method of formwork system for integrally pouring bridge pier and tie beam |
| CN202410778665.9A CN118547573A (en) | 2022-09-19 | 2022-09-19 | Template system for integrally pouring bridge pier and tie beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137288.8A CN115369748B (en) | 2022-09-19 | 2022-09-19 | Construction method of formwork system for integrally pouring bridge pier and tie beam |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410778665.9A Division CN118547573A (en) | 2022-09-19 | 2022-09-19 | Template system for integrally pouring bridge pier and tie beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115369748A CN115369748A (en) | 2022-11-22 |
| CN115369748B true CN115369748B (en) | 2024-06-04 |
Family
ID=84071648
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410778665.9A Pending CN118547573A (en) | 2022-09-19 | 2022-09-19 | Template system for integrally pouring bridge pier and tie beam |
| CN202211137288.8A Active CN115369748B (en) | 2022-09-19 | 2022-09-19 | Construction method of formwork system for integrally pouring bridge pier and tie beam |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410778665.9A Pending CN118547573A (en) | 2022-09-19 | 2022-09-19 | Template system for integrally pouring bridge pier and tie beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN118547573A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569213B (en) * | 2023-12-06 | 2024-08-13 | 中交一公局集团有限公司 | Bridge high pier construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003328320A (en) * | 2002-05-15 | 2003-11-19 | Taisei Corp | Construction method of precast capital part and bridge pier capital part |
| CN106930194A (en) * | 2017-05-10 | 2017-07-07 | 山西路桥第二工程有限公司 | Inter-tie and pier stud global formation construction method and template used support |
| CN207878262U (en) * | 2017-12-15 | 2018-09-18 | 中铁上海工程局集团有限公司 | A kind of high pier shaft binder concrete construction strutting system |
| CN110396941A (en) * | 2019-08-22 | 2019-11-01 | 湖南中铁五新钢模有限责任公司 | A kind of bridge pier column construction system and construction method |
| CN110700105A (en) * | 2019-10-21 | 2020-01-17 | 中交一公局第七工程有限公司 | Synchronous construction method for high pier column and tie beam and template used in same |
| CN215947902U (en) * | 2021-06-30 | 2022-03-04 | 中建七局第四建筑有限公司 | Tie beam template support system in adjustable highway cylinder mound |
-
2022
- 2022-09-19 CN CN202410778665.9A patent/CN118547573A/en active Pending
- 2022-09-19 CN CN202211137288.8A patent/CN115369748B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003328320A (en) * | 2002-05-15 | 2003-11-19 | Taisei Corp | Construction method of precast capital part and bridge pier capital part |
| CN106930194A (en) * | 2017-05-10 | 2017-07-07 | 山西路桥第二工程有限公司 | Inter-tie and pier stud global formation construction method and template used support |
| CN207878262U (en) * | 2017-12-15 | 2018-09-18 | 中铁上海工程局集团有限公司 | A kind of high pier shaft binder concrete construction strutting system |
| CN110396941A (en) * | 2019-08-22 | 2019-11-01 | 湖南中铁五新钢模有限责任公司 | A kind of bridge pier column construction system and construction method |
| CN110700105A (en) * | 2019-10-21 | 2020-01-17 | 中交一公局第七工程有限公司 | Synchronous construction method for high pier column and tie beam and template used in same |
| CN215947902U (en) * | 2021-06-30 | 2022-03-04 | 中建七局第四建筑有限公司 | Tie beam template support system in adjustable highway cylinder mound |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118547573A (en) | 2024-08-27 |
| CN115369748A (en) | 2022-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113235472B (en) | Concrete placement platform truck is contained to apron | |
| CN202090591U (en) | Lift type climbing formwork of building operations | |
| CN109594479B (en) | Die carrier and method for simultaneous construction of central anti-collision guardrails of double-width parallel viaduct | |
| CN109653771B (en) | Tunnel arch ring and cable trench side wall two-lining steel mould trolley | |
| CN111119071A (en) | Construction method for assembling precast concrete segment box girder | |
| CN107419746A (en) | A kind of mobile formwork system and its construction method | |
| CN105586833A (en) | Construction method for integrally forming large cast-in-place thin-wall high pier through stiff skeleton reinforcement cage | |
| CN115369748B (en) | Construction method of formwork system for integrally pouring bridge pier and tie beam | |
| CN110593114A (en) | Box girder construction method based on large-span box girder multi-hoop truss support bailey bracket | |
| CN110878522B (en) | Main tower lower cross beam construction system and construction method | |
| CN114134820A (en) | Formwork support and construction method for I-shaped composite beam cast-in-place bridge deck | |
| CN109944164B (en) | Self-elevating hollow thin-wall pier roller die system and construction method thereof | |
| CN108005684B (en) | Separated steel mould trolley and construction method thereof | |
| CN114960433A (en) | Construction method for pouring working block at top of pier of steel bridge | |
| CN116716812B (en) | Construction method for solid section at top of main tower pier of river-facing super bridge | |
| CN114232519B (en) | Construction method and application of active service box girder comprehensive reinforcement system | |
| CN219604164U (en) | Variable cross-section special-shaped steel tower crown mounting device | |
| CN216947881U (en) | Formwork support of I-shaped composite beam cast-in-situ bridge deck | |
| CN221218513U (en) | Frame-lifting type reverse mould structure of bridge constant-section thin-wall pier | |
| CN220724855U (en) | Assembled soilless roadbed panel quick installation auxiliary device | |
| CN216194083U (en) | Box girder template convenient to dismantle transportation | |
| CN216786890U (en) | Active service box girder integrated reinforcing system | |
| CN210657999U (en) | Cast-in-situ tower column of cable-stayed bridge | |
| CN211923517U (en) | A auxiliary stay frame for installing platform in hydraulic pressure creeping formwork | |
| CN116084293A (en) | Cast-in-place concrete main arch ring three-angle steel arch frame formwork system and construction method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |