CN220598159U

CN220598159U - Guard bar template

Info

Publication number: CN220598159U
Application number: CN202320829374.9U
Authority: CN
Inventors: 吴芮; 陈慧芬; 卢博杰; 刘超; 刘维; 王洁妍; 杨骐豪; 刘运海; 郑思远; 万照帅; 刘贺; 陈煜炜; 余建仁
Original assignee: Zccc International Engineering Co ltd; Zhejiang Communications Construction Group Co Ltd
Current assignee: Zccc International Engineering Co ltd; Zhejiang Communications Construction Group Co Ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2024-03-15
Anticipated expiration: 2033-04-14

Abstract

The utility model relates to the technical field of building construction, in particular to a guardrail template, which comprises a rigid template; and a flexible template connected to the rigid template and capable of adjusting the bending degree; the rigid template is fixedly connected with the ductile template through a fixing component. According to the utility model, the flexible toughness template is adopted to replace the steel template at the bending part of the guardrail, so that the overall linear straightness of the concrete anti-collision guardrail can be effectively improved, the weight of the flexible template is lighter than that of the traditional steel template, the mechanical hoisting assembly process is reduced, the construction efficiency of the guardrail is improved, and the construction cost is reduced; in addition, the toughness template can be recycled, the deformation degree of the disassembled toughness template is smaller than that of the steel template, the recycling rate is higher, the resources are saved, and the environment is friendly.

Description

Guard bar template

Technical Field

The utility model relates to the technical field of building construction, in particular to a guardrail template.

Background

In recent years, with the improvement of aesthetic requirements and the continuous promotion of quality engineering construction, requirements on standardization, standardization and refinement of construction are more and more strict. The appearance quality of the concrete guardrail is specified in the highway engineering quality inspection and assessment Standard (JTG F80-1-2017): the guardrail line should have no abnormal bending and abrupt change, and the regulation is also used as a check point in the completion of bridge engineering, so that the quality of the guardrail construction can directly determine whether the engineering can pass the completion check.

The concrete guardrail manufacturing can be divided into a cast-in-situ process and a prefabrication process, wherein the cast-in-situ process is common, namely, the guardrail structure is built through on-site formwork support and pouring, the construction process is mature, and the quality can be ensured. However, the cast-in-situ process also has some defects, such as difficult removal of the traditional guardrail template, and the concrete guardrail template is generally broken when removed, so that the concrete guardrail template cannot be reused, and great resource waste is caused. At present, a concrete guardrail template on a bridge engineering construction site is generally manufactured by adopting a combined steel template in a segmented mode, and common specification lengths are 1.5m and 2.0m sections. When the guardrail is bent, a principle of' straight bending is generally adopted, and a steel template with the length of 1.0m is added for transition, but the problems of more abutted seams, uneven and attractive surface and the like are correspondingly caused. In addition, if the guardrail templates are all in the form of combined steel templates, the construction cost of the steel templates is lower, on one hand, because the steel templates are heavy, hoisting and assembling are needed to be carried out mechanically, and the construction efficiency is affected; on the other hand, the steel template has higher price, which is unfavorable for the control of construction cost.

In the prior art, aiming at the situation that a concrete guardrail needs to be bent, the patent with the application number of 201921360813.6 proposes a cast-in-situ reinforced concrete spline type anti-collision guardrail, which adopts a non-concrete pouring structure form through a mandrel, thereby ensuring the straight smoothness of the guardrail line type, reducing the quality defect of concrete, improving the construction appearance quality and the straight smoothness of the guardrail, but mainly improving the straight straightness effect of the bent position of the guardrail by carrying out differential processing on an outer guardrail template and an inner guardrail template, namely different processing lengths of the inner and outer steel templates, so as to further improve the straight beauty of the guardrail line type at a small curve turning position, and further improving the straight straightness effect of the bent position of the guardrail for a construction road section with slightly larger change of the bending degree of the guardrail; in addition, the guardrail template formed by carrying out differential processing prefabrication on the outer guardrail template and the inner guardrail template can be used only aiming at a road with a certain specific bending degree, has no universality and has lower recycling rate.

Disclosure of Invention

Based on the problems and the defects in the prior art, the utility model provides the guardrail template to solve the problem that the concrete guardrail template in the prior art is difficult to ensure the smooth and straight appearance of the guardrail in the construction process of a bending road section.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

a guardrail form comprising a rigid form;

and a flexible template connected with the rigid template and with adjustable curvature;

the rigid template is fixedly connected with the ductile template through a fixing component.

The steel template belongs to a rigid material, and has the advantages of high combined rigidity, high plate precision, small template adsorption force, easy demoulding, small deformation and high utilization rate, so that the steel template is widely applied to concrete pouring molding. But simultaneously, because the hardness and the tensile strength are large, the bending strength is large, when the external force reaches a certain limit, the material can be suddenly damaged without aura, and the property of no obvious plastic deformation is generated during the damage, the property severely limits the convenience of the material in the application of the road bending part, and after the guardrail straight-slow section is finished, the purpose of finally splicing the concrete guardrail with a certain radian can be achieved only by arranging a plurality of steel templates with shorter lengths for transition. The guardrail is spliced for many times to achieve the purpose of no obvious bending, but the guardrail is accompanied with the problems of more spliced seams, unattractive surface and the like, so that aiming at the problems, a guardrail template which can be well transited at the bending part of the road, improves the straightness of the guardrail at the bending part of the road, has high appearance flatness and high strength and stability is required to be used as engineering materials, and has good toughness and rigidity.

According to the utility model, on the basis of the traditional rigid template, a mode of splicing the flexible high-toughness template, such as a plastic template, is adopted, the toughness and the bending deformation characteristics of the template are utilized, and the template can recover performance advantages after deformation and is used as a guardrail template at a road bending position in a transitional manner. The rigid template and the flexible template segments are prefabricated by sections in a factory, different common specification segments are prefabricated in general, the specific splicing length of the flexible template is determined according to the actual requirements of the site, and the flexible template and the rigid template are fixedly connected through a fixing assembly, so that the connection operation is convenient. In addition, because the weight of the tough template, such as a plastic template, is lighter than that of the rigid template, mechanical hoisting and splicing are not needed, and the construction efficiency is further improved.

The guardrail linear straightness refers to the condition that the appearance of the solidified and molded concrete guardrail has no obvious bending abrupt change by pouring concrete between guardrail templates, and the guardrail has smooth curve appearance.

Preferably, the left and right ends of the ductile template are provided with first connecting holes;

the end part of the rigid template is provided with a second connecting hole matched with the first connecting hole;

the fixing assembly sequentially penetrates through the first connecting hole and the second connecting hole, so that the flexible template and the rigid template are fixedly connected with each other.

Preferably, the flexible template comprises a flexible template main body, the left end and the right end of the flexible template main body are respectively provided with a connecting end used for being connected with the rigid template, one side surface of the connecting end is level with the flexible template main body, the other side surface of the connecting end protrudes out of the flexible template main body, and the first connecting hole is formed in the connecting end.

Preferably, a connecting groove is formed in one side, which is flush with the main body of the ductile cast iron, of the connecting end, and the first connecting hole is formed in the connecting groove and penetrates through the connecting end.

Preferably, the fixing component comprises a bolt and a nut matched with the bolt;

the bolt comprises a screw rod which penetrates through the first connecting hole and the second connecting hole, and further comprises a fixing block with the shape and the size matched with those of the connecting groove.

The shape and the size of the fixed block are matched with those of the connecting groove, so that the fixed block can be completely embedded into the connecting groove after the fixing component is installed, the outer side surface of the fixed block is leveled with one side surface of the ductile form, and the ductile form and the rigid form can be fixedly connected, and meanwhile, the outer surface of the concrete guardrail is apparent and smooth, and the phenomenon of uneven appearance is avoided.

Preferably, the shape of the connecting groove is an ellipse or a polygon having a side length of 3 or more.

The shape of fixed block and spread groove is all designed into oval or the polygon class shape that limit number is greater than or equal to 3, compares in circular fixed block, and its fixed action is more strengthened, can be convenient for the connection fixed of bolt nut, and because, when carrying out fixed operation, at the in-process of screwing up the nut on the bolt, circular fixed block is owing to lack spacing effect in the spread groove, and it rotates together to follow the nut to skid very easily, and then appears the unable phenomenon of fastening the connection both sides template of fixed subassembly.

Preferably, the rigid template comprises a rigid template main body and a corner plate arranged at the end part of the rigid template main body and used for being connected with the connecting end of the ductile template, and the second connecting hole is arranged on the corner plate.

Preferably, the corner plate is adapted to the connection end, so that when the connection end and the corner plate are connected to each other, the rigid template body is leveled with one side of the ductile template body.

One end of the last rigid template of the guardrail straight slow section is generally set to be a corner plate, and a hole is formed in the end of the last rigid template, so that the flexible templates are convenient to connect. The corner plate on the rigid template is processed into L shape, the size of the connecting end on the flexible template is matched with the size of the corner plate, and then the situation that the appearance of the solidified concrete guardrail is smooth and the joint seam can not occur after the splicing of the rigid template and the flexible template is completed and the concrete pouring forming work is finished can be guaranteed. Therefore, the arrangement of the connecting structure on the guardrail template can reduce the generation of the seam on the surface of the guardrail, reduce the work of removing the seam, improve the construction efficiency and also avoid the generation of the cracking problem of the concrete guardrail caused by improper work of removing the seam. In addition, because the nut in the fixed subassembly outwards, be convenient for fix and dismantle, the guardrail template after dismantling can recycle.

Preferably, the rigid form further comprises a reinforcing component disposed on the rigid form body for reinforcing the rigid form.

Preferably, the reinforcement assembly includes a plurality of transverse ribs and a plurality of vertical ribs disposed to intersect the transverse ribs.

The beneficial effects of the utility model are as follows:

(1) The flexibility of the flexible template is far higher than that of the steel template, the flexible template is arranged at the bending gradual change position of the guardrail, and the integral linear straightness of the concrete anti-collision guardrail after casting molding can be effectively improved by adjusting the bending radian of the flexible template;

(2) The specific splicing size of the ductile cast iron is determined according to the site construction requirement, so that the weight of the ductile cast iron is lighter than that of the traditional steel cast iron, the procedures of mechanical hoisting and splicing are reduced, the construction efficiency of the guardrail is improved, and the construction cost is reduced;

(3) The toughness template can be recycled, the deformation degree of the disassembled toughness template is smaller than that of the steel template, the recycling rate is higher, the resources are saved, and the environment is friendly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some of the embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a fixing assembly in the present utility model.

FIG. 2 is a schematic diagram of the overall structure of the ductile form of the present utility model.

Fig. 3 is a schematic view of the overall structure of the rigid form of the present utility model.

Fig. 4 is a top view of the malleable template of the present utility model.

Fig. 5 is a top view of the rigid form of the present utility model.

Fig. 6 is a schematic diagram of the assembly of the ductile form and the rigid form of the present utility model.

FIG. 7 is a schematic diagram of the connection structure of the ductile form and the rigid form of the present utility model.

Wherein: 1, a rigid template; 11 a rigid template body; 12 corner plates; 13 reinforcing the assembly; 131 transverse ribs; 132 vertical ribs; 14 a second connection hole; 2, toughness templates; a 21 ductile template body; 22 connection ends; 23 connecting grooves; 24 first connection holes; 3, fixing the assembly; 31 nuts; 32 bolts; 321 screws; 322 securing the block.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

The drawings in the present specification are schematic views, which assist in explaining the concept of the present utility model, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structure of each component of the embodiment of the present utility model, each drawing is not drawn to the same scale, and the same reference numerals are used to designate the same parts.

As shown in fig. 1 to 7, the guardrail template in this embodiment includes a rigid template 1 for casting a linear concrete guardrail on a straight road section, and a flexible template 2 with a certain flexibility, which can be connected with the rigid template 1 on a bending road section, wherein the flexibility of the flexible template 2 is utilized to adjust the bending radian of the flexible template 2 so as to adapt to the bending degree of the guardrail required by a road bending position, thereby forming the concrete guardrail with a linear straight appearance at the road bending position.

The flexible template 2 is connected with the rigid template 1 through a fixing component 3, specifically: the left end and the right end of the flexible template 2 are respectively provided with a first connecting hole 24, the end of the rigid template 1 is provided with a second connecting hole 14 matched with the first connecting holes 24, and the fixing assembly 3 sequentially penetrates through the first connecting holes 24 and the second connecting holes 14, so that the flexible template 2 and the rigid template 1 are fixedly connected with each other.

The toughness template 2 comprises a toughness template main body 21, the left end and the right end of the toughness template main body 21 are respectively provided with a connecting end 22 used for being connected with the rigid template 1, one side of the connecting end 22 is leveled with the toughness template main body 21, and the other side of the connecting end 22 protrudes out of the toughness template main body 21; the connecting end 22, which is flat with the ductile cast iron body 21, is provided with a connecting groove 23 on one side, and the first connecting hole 24 is provided inside the connecting groove 23 and penetrates through the connecting end 22.

The rigid template 1 comprises a rigid template main body 11 and a corner plate 12 arranged at the end part of the rigid template main body 11 and used for being connected with a connecting end 22 of the ductile template 2, and the second connecting hole 14 is arranged on the corner plate 12. The corner plate 12 is matched with the connecting end 22 in size, so that when the connecting end 22 and the corner plate 12 are spliced with each other, the rigid template main body 11 is leveled with one side of the ductile template main body 21, and the appearance surface of the concrete guardrail is further leveled. In addition, the rigid form further comprises a reinforcing component 13 arranged on the rigid form main body 11 and used for reinforcing the rigid form 1, and the reinforcing component 13 comprises a plurality of transverse ribs 131 and a plurality of vertical ribs 132 intersecting the transverse ribs 131.

The fixing assembly 3 comprises a bolt 32 and a nut 31 matched with the bolt 32; the bolt 32 includes a screw 321 penetrating the first and second coupling holes 24 and 14, and a fixing block 322 having a shape and size matching those of the coupling groove 23. Since the depth of the connecting groove 23 is the same as the thickness of the fixing block 322, the outer side surface of the fixing block 322 is flush with the surface of the connecting end 22 of the ductile cast iron 2 after the fixing member is mounted, which is advantageous for forming a flat guardrail surface.

The connecting groove 23 and the fixing block 322 arranged on the connecting end 22 of the ductile cast iron 2 are both elliptic or polygonal with the edge length number more than or equal to 3. When the two side templates are fixedly connected through the fixing component 3, the fixing blocks 322 can be matched in a limiting manner by means of the connecting grooves 23, so that the nuts 31 can be conveniently screwed down, and compared with round fixing blocks, the fixing blocks are more beneficial to the connection and fixation of bolts and nuts, and can be conveniently detached. In this embodiment, a square nut and a square connecting groove are described as an example.

The specific use process is as follows:

firstly, prefabricating a rigid template 1 with an L-shaped corner plate 12, a flexible template 2 with a connecting end 22 matched with the corner plate 12 and a fixing assembly 3 with square fixing blocks 322 in a template factory; the last straight template at the end of the guardrail straight-slow section adopts a rigid template 1 with an L-shaped corner plate 12, then a ductile template 2 with a corresponding length is selected according to the actual bending condition of a scene road, and a connecting end 22 at one side of the ductile template 2 is spliced with the corner plate 12 on the rigid template 1, so that the rigid template main body 11 is leveled with one side of the ductile template main body 21; then the end of a screw rod 321 on the bolt 32 sequentially passes through the first connecting hole 24 and the second connecting hole 14, so that the fixed block 322 is embedded into the connecting groove 23, the outer side surface of the fixed block 322 is leveled with the surface of the connecting end of the ductile cast iron 2, and the nut 31 is screwed on the outer side of the rigid cast iron 1 by an electric wrench, so that the two cast iron are fixedly connected into a whole; in the same way, the rigid template 1 is connected to the connecting end 22 on the other side of the flexible template 2; and the flexibility of the flexible template 2 is utilized, the bending radian of the flexible template 2 is adjusted to the degree matched with the bending degree of a required transition section, and the template position is fixed.

Claims

1. A guardrail template, characterized by comprising a rigid template (1);

and a flexible form (2) connected to the rigid form (1) and having an adjustable degree of flexibility;

the rigid template (1) is fixedly connected with the ductile template (2) through a fixing component (3);

the left end part and the right end part of the ductile cast iron (2) are provided with first connecting holes (24);

the end part of the rigid template (1) is provided with a second connecting hole (14) which is matched with the first connecting hole (24);

the fixing assembly (3) sequentially penetrates through the first connecting hole (24) and the second connecting hole (14), so that the ductile template (2) and the rigid template (1) are fixedly connected with each other;

the flexible template (2) comprises a flexible template main body (21), the left end and the right end of the flexible template main body (21) are respectively provided with a connecting end (22) used for being connected with the rigid template (1), one side surface of the connecting end (22) is kept flat with the flexible template main body (21), the other side surface of the connecting end (22) protrudes out of the flexible template main body (21), and the first connecting hole (24) is formed in the connecting end (22);

a connecting groove (23) is formed in one side, which is flush with the flexible template main body (21), of the connecting end (22), and the first connecting hole (24) is formed in the connecting groove (23) and penetrates through the connecting end (22);

the fixing assembly (3) comprises a bolt (32) and a nut (31) matched with the bolt (32);

the bolt (32) comprises a screw rod (321) which is used for penetrating the first connecting hole (24) and the second connecting hole (14), and also comprises a fixing block (322) which is matched with the connecting groove (23) in shape and size.

2. A guardrail module as claimed in claim 1, characterized in that the connecting groove (23) has the shape of an ellipse or a polygon with a side length of 3 or more.

3. A guardrail formwork as claimed in claim 1, characterized in that the rigid formwork (1) comprises a rigid formwork body (11) and a corner plate (12) arranged at the end of the rigid formwork body (11) for connection with the connecting end (22) of the ductile formwork (2), the second connecting hole (14) being arranged on the corner plate (12).

4. A guardrail module as claimed in claim 3, characterized in that the corner plate (12) is adapted to the connection end (22) such that the rigid module body (11) is flush with the ductile module body (21) side when the connection end (22) is interconnected with the corner plate (12).

5. A guardrail module as claimed in claim 3 or 4, characterized in that the rigid module (1) further comprises a reinforcement assembly (13) provided on the rigid module body (11) for reinforcing the rigid module (1).

6. A guardrail module as claimed in claim 5, characterized in that said reinforcement assembly (13) comprises a plurality of transverse ribs (131) and a plurality of vertical ribs (132) arranged crosswise to said transverse ribs (131).