CN-121992737-A - Disassembly-free movable template bench formwork for roadbed box culvert construction and construction method

CN121992737ACN 121992737 ACN121992737 ACN 121992737ACN-121992737-A

Abstract

The invention relates to a disassembly-free movable template bench formwork for roadbed box culvert construction and a construction method thereof, comprising an inner mold movable frame, an outer mold lifting mechanism, an inner template and an outer template, wherein the inner template is of a transversely telescopic N-shaped structure, the inner template is arranged on the inner mold movable frame and is driven to move in a telescopic manner by the inner mold movable frame, the outer template is arranged on the outer mold movable frame and is driven to move by the outer mold movable frame, the inner template is positioned in a pair of outer templates and is spaced from the outer templates, the inner template and the outer templates are mutually telescopic to form an N-shaped interval for pouring concrete, and the outer mold lifting mechanism is arranged on the outer mold movable frame and is positioned above the inner template and is used for providing thrust for the upper end of the solidified concrete to pull the outer template to lift.

Inventors

MA XIAOLI
LIU YIMIN
CAO SHAOHUI
WANG XIAOWEN
LIU ZHAOBO
Miao Qiangsheng
WANG MINGHAI
WANG LIBO
DING HUIDONG
LU LIANG
LIU JIHUAN

Assignees

中铁二十一局集团有限公司
中铁二十一局集团第三工程有限公司

Dates

Publication Date: 20260508
Application Date: 20260114

Claims (10)

1. A no dismantlement movable mould platform mould for road bed box culvert construction, its characterized in that includes centre form movable frame, outer mould elevating system, interior template and outer template, but the interior template is transversely flexible N type structure, the interior template sets up on the centre form movable frame and by its flexible removal of centre form movable frame drive, the outer template sets up on the outer mould movable frame and by the outer mould movable frame drives its removal, the interior template be located a pair of outer template and with outer template looks interval, interior template and outer template mutually flexible removal form the N type interval that is used for pouring concrete, outer mould elevating system sets up on the outer mould movable frame and be located the concrete upper end after the mould top is used for setting provides thrust in order to stimulate outer template rises.
2. The disassembly-free movable formwork bench formwork for roadbed box culvert construction according to claim 1, wherein the inner formwork movable frame comprises a longitudinal linear movement mechanism, an inner formwork vertical lifting mechanism, an inner formwork transverse cylinder, a portal frame and a bottom beam, a pair of the longitudinal linear movement mechanisms are transversely arranged at intervals, a plurality of the portals are transversely arranged and longitudinally spaced in sequence, two sides of the lower end of each portal frame are connected to the pair of the bottom beams, the bottom beam is arranged on the longitudinal linear movement mechanism, the inner formwork is slidably connected to the periphery of the portal frame, two sides of each portal frame are provided with the inner formwork vertical lifting mechanism, one end of each inner formwork vertical lifting mechanism is connected with the portal frame, the other end of each inner formwork vertical lifting mechanism is abutted to the corresponding bottom beam, two sides of the upper end of each portal frame are provided with the inner formwork transverse cylinder, one end of each inner formwork transverse cylinder is connected with the portal frame, and the other end of each inner formwork is connected with the other end of each inner formwork.
3. The disassembly-free movable formwork bench formwork for roadbed box culvert construction according to claim 2, wherein the inner formwork comprises an inner formwork vertical plate, an inner formwork horizontal central plate and an inner formwork horizontal lateral plate, a pair of inner formwork vertical plates are respectively arranged at the outer side of the portal frame at opposite intervals and are respectively connected with an inner formwork transverse cylinder, the inner formwork horizontal central plate and the inner formwork horizontal lateral plate are respectively arranged at the upper end of the portal frame, the inner formwork horizontal lateral plates are respectively positioned at the two transverse sides of the inner formwork horizontal central plate, one end of each inner formwork horizontal lateral plate is in sliding nested connection with the inner formwork horizontal central plate, and the other end of each inner formwork horizontal lateral plate is connected with the inner formwork vertical plate.
4. The disassembly-free movable template bench formwork for roadbed box culvert construction according to claim 2 or 3, wherein the longitudinal linear movement mechanism comprises a steel rail, a driving wheel, a fixing frame and a driving motor, the driving wheel is slidably nested on the steel rail, the fixing frame is sleeved on the periphery of the driving wheel, the driving motor is connected to the fixing frame and used for driving the driving wheel to drive the fixing frame to move along the steel rail, the internal mold vertical lifting mechanism comprises a vertical sliding sleeve, a lifting sliding column and a lifting oil cylinder, the end part of the bottom beam is connected with the vertical sliding sleeve, the lifting sliding column is nested in the vertical sliding sleeve, two ends of the lifting sliding column extend out of the vertical sliding sleeve, one end of the lifting sliding column is connected with the fixing frame, the other end of the lifting sliding column is connected with one end of the lifting oil cylinder, and the other end of the lifting oil cylinder is connected with the portal frame.
5. The disassembly-free movable formwork bench formwork for roadbed box culvert construction according to claim 4, wherein the outer formwork movable frame comprises a longitudinal beam, an upper beam, lateral sliding pipes, vertical screw rods and outer formwork transverse cylinders, one ends of the vertical screw rods are vertically connected to two lateral sides of the portal frame at two longitudinal ends, the other ends of the vertical screw rods at each longitudinal interval penetrate through the screw joints respectively and extend out of the longitudinal beam, the lower ends of the longitudinal beams are connected with a plurality of upper beams at intervals in sequence, lateral sliding pipes are slidably nested at two lateral ends of each upper beam, the outer formwork is connected with the lateral sliding pipes, the lateral sliding pipes are connected with one ends of the outer formwork transverse cylinders, and the other ends of the outer formwork transverse cylinders are connected with the upper beam.
6. The non-dismantling movable formwork bench formwork for roadbed box culvert construction of claim 5, wherein an inclined strut is arranged on the outer side of the outer formwork, one end of the inclined strut is connected with the outer formwork, and the other end of the inclined strut is connected with a lateral sliding tube.
7. The non-detachable mobile formwork for constructing a subgrade box culvert in accordance with claim 5 wherein said outer mold lifting mechanism includes a support cylinder and a T-shaped concave rail, each of said longitudinal beams being provided with at least a pair of spaced support cylinders, one end of said support cylinder extending out of said longitudinal beam and slidably connected to said T-shaped concave rail by a slider.
8. The detachable mobile template bench formwork for roadbed box culvert construction according to claim 7, wherein the sliding piece comprises a follow-up wheel frame, a hanging plate, lifting rollers and a follow-up wheel, one end of the supporting oil cylinder is connected with the follow-up wheel frame, the follow-up wheel frame is in sliding nesting, two sides of the follow-up wheel frame are connected with the hanging plate, the lower end of the hanging plate is connected with the lifting rollers, the lifting rollers are hung at the lower end of the T-shaped concave guide rail, and the follow-up wheel is abutted to the upper end of the T-shaped concave guide rail.
9. The non-dismantling movable template bench formwork for roadbed box culvert construction of claim 8, wherein the outer template and the inner template are connected by a pair of wire drawing rods, and a fixed screw rod is connected between the inner template and the portal frame.
10. A construction method based on the disassembly-free movable formwork for roadbed box culvert construction according to any one of claims 1 to 9, characterized by comprising the following steps: step S1, an inner mold moving frame, an outer mold lifting mechanism, an inner mold plate and an outer mold plate are sequentially built on a foundation; S2, adjusting the inner die moving frame to drive the inner die to expand to an inner die supporting position, and adjusting the outer die moving frame to drive a pair of outer die to expand to an outer die supporting position, wherein the inner die and the outer die form an N-shaped interval; S3, pouring concrete in the N-type interval; And S4, after the concrete is solidified, adjusting the inner mold moving frame to loosen the inner mold plate, and adjusting the outer mold moving frame and the outer mold lifting mechanism to loosen the outer mold plate.

Description

Disassembly-free movable template bench formwork for roadbed box culvert construction and construction method Technical Field The invention belongs to the technical field of culvert construction, and particularly relates to a disassembly-free movable template bench formwork for roadbed box culvert construction and a construction method. Background In the construction that highway and national road were reformed transform, need to carry out the extension to the culvert, need to build the scaffold frame and support external mold and centre form and fix when the culvert is extended, then pour concrete in the interval that centre form and external mold formed, dismantle centre form, external mold and scaffold frame after the concrete solidifies, intensity of labour is big, and the efficiency of construction is low, and centre form and external mold damage easily and the transportation is inconvenient in dismantling handling simultaneously. Disclosure of Invention In order to solve the technical problems, the invention aims to provide a disassembly-free movable template bench formwork for roadbed box culvert construction and a construction method, wherein the construction and disassembly of an inner template and an outer template are realized in a mode that the inner template and the outer template are respectively connected to an inner mold movable frame and an outer mold movable frame, so that the labor intensity is low, and the construction efficiency is high. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The invention provides a disassembly-free movable template bench formwork for roadbed box culvert construction, which comprises an inner template moving frame, an outer template lifting mechanism, an inner template and an outer template, wherein the inner template is of a transversely telescopic N-type structure, the inner template is arranged on the inner template moving frame and is driven by the inner template moving frame to move in a telescopic manner, the outer template is arranged on the outer template moving frame and is driven by the outer template moving frame to move, the inner template is positioned in a pair of outer templates and is spaced from the outer template, the inner template and the outer template are mutually telescopic to form an N-type interval for pouring concrete, and the outer template lifting mechanism is arranged on the outer template moving frame and is positioned above the inner template and is used for providing thrust for the upper end of the solidified concrete so as to pull the outer template to ascend. Further, the centre form movable frame includes vertical rectilinear movement mechanism, centre form vertical lifting mechanism, centre form transverse cylinder, portal and flounder, a pair of vertical rectilinear movement mechanism transversely separates the setting, and is a plurality of the portal transversely sets up and vertically separates in proper order, the lower extreme both sides of portal are all connected on a pair of flounder, the flounder sets up on vertical rectilinear movement mechanism, interior template sliding connection is in the portal periphery, every the both sides of portal all set up centre form vertical lifting mechanism, portal is connected to centre form vertical lifting mechanism's one end, and the other end butt is on vertical rectilinear movement mechanism and is connected with the flounder, every the upper end both sides of portal all set up the centre form transverse cylinder, the portal is connected to the one end of centre form transverse cylinder, and the interior template is connected to the other end. Further, the inner template comprises an inner template vertical plate, an inner template horizontal central plate and an inner template horizontal lateral plate, wherein a pair of inner template vertical plates are respectively arranged at the outer side of the portal at opposite intervals and are respectively connected with an inner template transverse cylinder, the inner template horizontal central plate and the inner template horizontal lateral plate are both arranged at the upper end of the portal, the inner template horizontal lateral plates are respectively positioned at the two transverse sides of the inner template horizontal central plate, one end of each inner template horizontal lateral plate is connected with the inner template horizontal central plate in a sliding nested manner, and the other end of each inner template horizontal lateral plate is connected with the inner template vertical plate. Further, the vertical linear moving mechanism comprises a steel rail, a driving wheel, a fixing frame and a driving motor, wherein the driving wheel is in sliding nesting on the steel rail, the fixing frame is sleeved on the periphery of the driving wheel, the driving motor is connected to the fixing frame and used for driving the driving wheel to drive the fixing frame to move al