CN221645587U - A post-cast trough concrete pouring template for expansion joints of highway bridges - Google Patents

Abstract

The utility model provides a post-pouring slot concrete pouring template for a highway bridge expansion joint, which comprises a template main body, a driving assembly and a positioning assembly, wherein the template main body comprises a left template and a right template, the left template and the right template are respectively abutted against two sides of the expansion joint so as to provide a pouring space for the post-pouring slot, the driving assembly comprises a hydraulic jack, the hydraulic jack is arranged between the left template and the right template, the left template and the right template can be respectively pressed on two sides of the expansion joint, the problem that the templates fall off and are ectopic in the construction process is prevented, the installation precision is improved, the positioning assembly is arranged on the template main body, the installation precision is further improved, and the post-pouring slot concrete pouring template for the highway bridge expansion joint can be suitable for pouring slot pouring construction, and has high installation precision and high post-pouring slot construction quality, and can improve the service life of a bridge, thereby improving the travelling comfort on the bridge.

Description

A post-cast trough concrete pouring template for expansion joints of highway bridges

Technical Field

The utility model belongs to the field of bridge construction, and specifically relates to a post-cast trough concrete pouring template for expansion joints of highway bridges.

Background Art

In highway bridge construction, expansion joints are used to adjust the displacement and connection between the superstructure caused by vehicle loads and bridge construction materials. The expansion joint postcast trough is the key part connecting the bridge body and the expansion joint. In order to ensure the construction quality of the expansion joint, the pouring of the postcast trough concrete is a key step. There are high requirements for the accuracy and quality of concrete pouring. The existing concrete formwork installation and disassembly process is complicated, the installation accuracy is low, and problems such as mold running and slurry leakage are prone to occur during the pouring process, affecting the service life of the bridge expansion device and driving comfort.

To solve the above problems, patent document CN219099812U discloses a supporting device for bridge casting formwork, including steel frames, lifting devices, horizontal connecting rods, steel guide rails, and steel fasteners. The steel frames are arranged in parallel with equal spacing, including upper-chord steel main beams, lower-chord steel main beams, diagonal bracing beams, vertical braces, and diagonal braces. The vertical braces or diagonal braces are vertically connected to the horizontal connecting rods through steel fasteners. The overall convenient installation and disassembly of the steel frames can be achieved by installing and disassembling the horizontal connecting rods; each group of steel frames is installed on the steel guide rails through multiple lifting devices, and the lifting devices include upper screws, internally threaded tubes, lower screws and limit blocks. However, this application cannot solve the above problems.

Utility Model Content

The utility model is designed to solve the above problems, and aims to provide a highway bridge expansion joint post-casting trough concrete casting template that can be suitable for casting trough casting construction, can improve installation accuracy, and improve the quality of post-casting trough construction. In order to achieve the above purpose, the technical solution adopted by the utility model is:

The utility model provides a post-cast trough concrete pouring template for a highway bridge expansion joint, which has the following characteristics: a template body, comprising a left template and a right template, the left template and the right template are respectively abutted against two sides of the expansion joint; a driving component, comprising a hydraulic jack, the hydraulic jack is arranged between the left template and the right template; and a positioning component is arranged on the template body.

The post-cast trough concrete pouring template for expansion joints of highway bridges provided by the utility model may also have the following features: vertical back ribs and transverse back ribs are provided on the template body, the vertical back ribs and the transverse back ribs are connected and arranged on the side of the template body away from the expansion joint.

The post-cast trough concrete pouring template for the expansion joint of a highway bridge provided by the utility model may also have the following features: the template body also includes a supporting assembly, the supporting assembly includes an upper slide plate and a lower slide plate, and the upper slide plate and the lower slide plate are provided with corresponding long strip bolt holes.

The post-cast trough concrete pouring formwork for the highway bridge expansion joint provided by the utility model may also have the following features: one end of the hydraulic jack is connected to the left formwork, and the other end is connected to the right formwork, and the hydraulic jacks are evenly arranged between the left formwork and the right formwork.

The post-cast trough concrete pouring formwork for the expansion joint of a highway bridge provided by the utility model may also have the following features: the driving assembly also includes a hydraulic oil pipe, an oil pump and a synchronizer, the oil pump is connected to the hydraulic jack through the hydraulic oil pipe, and the synchronizer is arranged on the hydraulic oil pipe.

The post-cast trough concrete pouring formwork for the highway bridge expansion joint provided by the utility model may also have the following features: the positioning assembly includes a positioning angle steel, which is arranged at the end of the formwork body and abuts against the bridge deck.

The post-cast trough concrete pouring template for the expansion joint of a highway bridge provided by the utility model may also have the following feature: an expansion belt is provided between the template body and the expansion joint.

The technical effect of the utility model is as follows: the post-cast trough concrete pouring template for the expansion joint of the highway bridge provided by the utility model includes a template body, a driving assembly and a positioning assembly, the template body includes a left template and a right template, the left template and the right template are respectively abutted against the two sides of the expansion joint, thereby providing a pouring space for the post-cast trough, the driving assembly includes a hydraulic jack, the hydraulic jack is arranged between the left template and the right template, and the left template and the right template can be respectively pressed on the two sides of the expansion joint to prevent the problem of template falling off and being out of place during construction, and improve the installation accuracy, the positioning assembly is arranged on the template body, which can further improve the installation accuracy and improve the pouring quality of the post-cast trough concrete.

Therefore, the post-cast trough concrete pouring template for the expansion joint of the highway bridge provided by the utility model can be suitable for trough pouring construction, has high installation accuracy and high post-cast trough construction quality, can increase the service life of the bridge, and thus can improve the driving comfort on the bridge.

BRIEF DESCRIPTION OF THE DRAWINGS

This specification includes the following drawings, which show the following contents:

1 is a schematic structural diagram of a post-cast trough concrete pouring template for a highway bridge expansion joint in an embodiment of the present utility model in a side view direction;

2 is a cross-sectional view of a post-cast trough concrete casting template for a highway bridge expansion joint in an embodiment of the present utility model in the direction of a top view;

FIG3 is a schematic diagram of the structure of the template body in the top view direction in the embodiment of the present utility model;

FIG4 is a schematic structural diagram of a support assembly in an embodiment of the present utility model;

5 is a schematic diagram of the post-cast trough concrete pouring template for the expansion joint of a highway bridge in an embodiment of the utility model during use.

Markings in the figure are: 1-post-cast trough, 2-bridge deck, 3-expansion joint, 10-formwork body, 11-left formwork, 12-right formwork, 13-vertical back rib, 14-transverse back rib, 15-support assembly, 151-upper slide, 152-lower slide, 20-drive assembly, 21-hydraulic jack, 22-hydraulic oil pipe, 23-oil pump, 24-synchronizer, 30-positioning assembly, 31-positioning angle steel, 40-expansion belt.

DETAILED DESCRIPTION

The following is a further detailed description of the specific implementation methods of the utility model by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model and facilitating its implementation.

Figure 1 is a structural schematic diagram of the post-cast trough concrete casting template for the expansion joint of a highway bridge in an embodiment of the utility model in the side view direction; Figure 2 is a sectional view of the post-cast trough concrete casting template for the expansion joint of a highway bridge in an embodiment of the utility model in the top view direction.

As shown in FIG. 1 and FIG. 2 , the post-cast trough concrete pouring template for expansion joints of highway bridges provided by the utility model includes a template body 10 , a driving assembly 20 and a positioning assembly 30 .

The formwork body 10 includes a left formwork 11 and a right formwork 12, which are respectively in contact with the two sides of the expansion joint 3, thereby reserving pouring space for the pouring construction of the post-casting trough 1, and facilitating the operator to pour concrete into the post-casting trough 1. The formwork body 10 is made of 3mm thick Q235 steel plate or stainless steel plate.

The template body 10 can be divided into two types according to the length of the expansion joint: a standard section and an adjustable section. The length of the standard section template body 10 is 3m, and the length of the adjustable section template body 10 is 1m, 0.5m or 0.3m. The template body 10 of the standard section and the adjustable section can be spliced to adapt to the sizes of various expansion joints 3.

FIG. 3 is a schematic diagram of the structure of the template body in the top view direction in an embodiment of the present utility model.

As shown in FIG3 , the formwork body 10 is provided with vertical back ribs 13 and transverse back ribs 14, which are connected to each other to form a grid-like convex rib, which is arranged on the side of the formwork body 10 close to the post-casting groove 1, away from the center of the expansion joint 3, and arranged on the side of the left formwork 11 abutting against the expansion joint 3 and the side of the right formwork 12 abutting against the expansion joint 3, which can increase the surface roughness of the formwork body 10, thereby increasing the friction between the formwork body 10 and the expansion joint 3, thereby preventing the formwork body 10 and the expansion joint 3 from relative movement during the pouring construction process, affecting the construction quality. The vertical back ribs 13 and the transverse back ribs 14 are welded to the formwork body 10 using steel bars.

The driving assembly 20 includes a hydraulic jack 21, which is arranged between the left formwork 11 and the right formwork 12. The hydraulic jack 21 can drive the left formwork 11 and the right formwork 12 to move away from each other and abut against both sides of the expansion joint 3, so as to facilitate the operator to perform pouring construction.

One end of the hydraulic jack 21 is connected to the left template 11 , and the other end is connected to the right template 12 . Three hydraulic jacks 21 are evenly arranged between the left template 11 and the right template 12 , thereby increasing the force acting on the left template 11 and the right template 12 .

The drive assembly 20 also includes a hydraulic oil pipe 22, an oil pump 23 and a synchronizer 24. The oil pump 23 is connected to the hydraulic jack 21 through the hydraulic oil pipe 22, and can drive the hydraulic jack 21 to open the left template 11 and the right template 12. The synchronizer 24 is arranged on the hydraulic oil pipe 22, which can ensure that the force of each hydraulic jack 21 controlled by the oil pump 23 is the same, thereby ensuring the uniformity of the spacing between the left template 11 and the right template 12, thereby improving the installation accuracy.

FIG. 4 is a schematic structural diagram of a support assembly in an embodiment of the present utility model.

As shown in FIG4 , the formwork body 10 also includes a support assembly 15, which includes an upper plate 151 and a lower plate 152. The upper plate 151 and the lower plate 152 are provided with a plurality of corresponding long strip bolt holes, and bolts are inserted into the bolt holes. The upper plate 151 and the lower plate 152 are connected by bolts inserted into different bolt holes to achieve an adjustable length. The support assembly 15 can be adjusted according to the distance between the left formwork 11 and the right formwork 12. After the hydraulic jack 21 opens the left formwork 11 and the right formwork 12, the support assembly 15 can further support the left formwork 11 and the right formwork 12 to prevent relative movement between the left formwork 11 and the right formwork 12, thereby improving the construction quality.

The positioning assembly 30 is arranged on the template body 10, and the positioning assembly 30 includes a positioning angle steel 31. One end of the positioning angle steel 31 is vertically arranged at the end of the template body 10 and abuts against the bridge deck 2, thereby limiting the template body 10, thereby improving the installation accuracy of the template body 10.

An expansion belt 40 is provided between the formwork body 10 and the post-casting groove 1. The expansion belt 40 can expand when it comes into contact with water, thereby effectively preventing the concrete leakage problem during the pouring construction process and improving the effect and quality of concrete molding.

5 is a schematic diagram of the post-cast trough concrete pouring template for the expansion joint of a highway bridge in an embodiment of the utility model during use.

As shown in Figure 5, when the post-cast trough 1 is cast and constructed by the post-cast trough concrete casting template of the highway bridge expansion joint provided by the utility model, the corresponding standard section and adjustment section of the template body 10 are selected for splicing according to the size of the expansion joint, and the template body 10 is placed in the expansion joint 3. The template body 10 is provided with an expansion belt 40. The two ends of the template body 10 are abutted against the bridge deck and the ground by positioning the angle steel 31. The oil pump 23 is turned on, and the left template 11 and the right template 12 are propped open by the hydraulic jack 21, so that the left template 11 and the right template 12 are respectively abutted against the two sides of the post-cast trough 1, and the support assembly 15 is adjusted to further support the left template 11 and the right template 12, so as to facilitate the operator to cast the post-cast trough 1 on both sides of the expansion joint 3. After pouring construction, if the expansion joint is a seamless expansion joint, the formwork body 10 can be directly removed from the bridge deck 2 by a crane after the support of the support assembly 15 is released and the hydraulic jack 21 is retracted; if the expansion joint is a modular expansion joint with seams, the formwork body 10 can be removed from the bottom of the bridge.

Functions and Effects of the Embodiments

The post-cast trough concrete pouring template for the expansion joint of a highway bridge provided by the utility model includes a template body 10, a driving component 20 and a positioning component 30. The template body 10 includes a left template 11 and a right template 12. The left template 11 and the right template 12 are respectively abutted against the two sides of the expansion joint 3, thereby providing a pouring space for the post-cast trough 1. The driving component 20 includes a hydraulic jack 21. The hydraulic jack 21 is arranged between the left template 11 and the right template 12, and can press the left template 11 and the right template 12 on the two sides of the expansion joint 3 respectively to prevent the template from falling off and out of position during the construction process, thereby improving the installation accuracy. The positioning component 30 is arranged on the template body 10, which can further improve the installation accuracy and improve the concrete pouring quality of the post-cast trough 1. The post-cast trough concrete pouring template for the expansion joint of a highway bridge provided by the utility model can be suitable for pouring trough pouring construction, has high installation accuracy, high post-cast trough construction quality, can improve the service life of the bridge, and thus can improve the driving comfort on the bridge.

The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims (7)

1. A post-cast trough concrete pouring template for a highway bridge expansion joint, characterized by comprising: The template body (10) comprises a left template (11) and a right template (12), wherein the left template (11) and the right template (12) are respectively in contact with two sides of the expansion joint (3); A driving assembly (20) comprising a hydraulic jack (21), wherein the hydraulic jack (21) is arranged between the left template (11) and the right template (12); A positioning component (30) is arranged on the template body (10). 2. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: The template body (10) is provided with a vertical back rib (13) and a transverse back rib (14); the vertical back rib (13) and the transverse back rib (14) are connected and arranged on a side of the template body (10) away from the expansion joint (3). 3. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: The template body (10) further comprises a support assembly (15), wherein the support assembly (15) comprises an upper slide plate (151) and a lower slide plate (152), and corresponding long strip-shaped bolt holes are provided on the upper slide plate (151) and the lower slide plate (152). 4. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: One end of the hydraulic jack (21) is connected to the left template (11), and the other end is connected to the right template (12); the hydraulic jack (21) is evenly arranged between the left template (11) and the right template (12). 5. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: The driving assembly (20) further comprises a hydraulic oil pipe (22), an oil pump (23) and a synchronizer (24); the oil pump (23) is connected to the hydraulic jack (21) via the hydraulic oil pipe (22); and the synchronizer (24) is arranged on the hydraulic oil pipe (22). 6. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: The positioning assembly (30) comprises a positioning angle steel (31), and the positioning angle steel (31) is arranged at the end of the template body (10) and abuts against the bridge deck (2). 7. The post-cast trough concrete pouring template for expansion joints of highway bridges according to claim 1 is characterized in that: An expansion belt (40) is provided between the template body (10) and the expansion joint (3).