CN211689933U - Lengthening template for bridge pier stud - Google Patents
Lengthening template for bridge pier stud Download PDFInfo
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- CN211689933U CN211689933U CN201922286759.1U CN201922286759U CN211689933U CN 211689933 U CN211689933 U CN 211689933U CN 201922286759 U CN201922286759 U CN 201922286759U CN 211689933 U CN211689933 U CN 211689933U
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Abstract
The utility model discloses an extension template for bridge pier stud, which comprises a fixed template, wherein the fixed template is arranged around the upper end of the old pier stud of a bridge body; the pier stud template is arranged on the fixed template; the fixed template at least bears the weight of fixed template and pier stud template, and detachable setting is in the upper end of the old pier stud of the pontic connects the pier stud template, for the building of pier stud template serves as the base station. The utility model discloses the application has been solved because conventional pier stud construction need utilize the cushion cap as the pier stud template assembly basis, takes the template to connect the long engineering of pier stud just can be under construction after long, and rebuilds the bridge and lie in river course and zanjon more, and supreme construction can't satisfy the technical problem that the construction requirement caused at all from down in conventional pier stud template.
Description
Technical Field
The utility model discloses the application relates to the communication field, particularly, relates to an extension template for bridge pier stud.
Background
Along with the development of the domestic traffic industry, the existing road cannot meet the existing traffic flow, the projects of reconstruction and extension of highway bridges are gradually increased, the upper structure of the existing bridge of the project is disassembled, the capping beam is disassembled, and the original pier stud is lengthened by utilizing the capping beam.
At present, in the conventional pier column construction, a finished bearing platform is used as a pier column template assembly foundation, a template is erected above the bearing platform for assembly, concrete is poured after the template is installed, and no available bearing platform or foundation exists in the reconstruction and expansion of a bridge; meanwhile, after the extension of the strip formwork, the pier column extension project can be constructed, so that the material is wasted, the construction period is long, and the overall production efficiency of the project is not improved; and the reconstructed bridge is mostly positioned in a river channel and a deep groove, the construction requirement of the conventional pier column template cannot be met from bottom to top, and the safety production cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main aim at of application provides a prolong template for bridge pier stud to solve because conventional pier stud construction need utilize the cushion cap to assemble the basis as pier stud template, take the template to prolong the back and just can construct pier stud and prolong the engineering, and rebuild the bridge and be located river course and zanjon more, conventional pier stud template is from supreme construction can't satisfy the technical problem that the construction requirement caused at all down.
In order to achieve the above object, according to one aspect of the present invention, an extension form for a bridge pier is provided.
According to the utility model discloses an extend template for bridge pier stud includes:
the fixed template is arranged at the upper end of the old pier stud of the bridge body in a surrounding manner;
the pier stud template is arranged on the fixed template;
the fixed template at least bears the weight of fixed template and pier stud template, and detachable setting is in the upper end of the old pier stud of the pontic connects the pier stud template, for the building of pier stud template serves as the base station.
Further, the pier stud template is arranged on the upper end edge of the fixed template.
Further, the pier stud template is attached to the old pier stud of the bridge body, and the fixed template encloses the pier stud template arranged on the periphery of the old pier stud of the bridge body.
Further, the pier stud template and/or the fixed template and the old pier stud of the bridge body are/is provided with rubber pads.
Furthermore, the fixed template comprises a fastener, a surrounding template and a stirrup, and the fastener fixes the surrounding template on the old pier stud of the bridge body through the stirrup.
Furthermore, the fastener and the enclosing template are fixedly connected through an anchor bolt.
In order to achieve the above object, according to another aspect of the present invention, there is provided an extension construction method for a bridge pier.
According to the utility model discloses an application is used for bridge pier column's construction method of lengthening includes, above-mentioned any one the template that is used for bridge pier column's lengthening.
The method comprises the following specific steps:
polishing before installing the template, wherein the template comprises a fixed template and a pier stud template;
installing the pier stud template by adopting a shaping steel mould;
and fixing the pier stud template through a fixing template.
Furthermore, the device comprises a rubber pad, and the rubber pad is arranged between the pier stud template and/or the fixed template and the old pier stud of the bridge body.
Furthermore, the templates are connected by bolts.
The utility model discloses in the application embodiment, adopt the mode that changes pier stud template overlap joint, bear and the overlap joint pier stud template through fixed die plate, the pier stud template that only needs to be equipped with extension position engineering has been reached, need not be equipped with the purpose of the template of all pier studs, thereby realized the management and control that is favorable to construction cost and time limit for a project, reduction of erection time's technical effect, and then solved because conventional pier stud construction need utilize the cushion cap as pier stud template assembly basis, take the template to connect and just can construct pier stud and connect long engineering after long, and rebuild the bridge and be located river course and zanjon, the technical problem that supreme construction can't satisfy construction requirements and cause at all from down in conventional pier stud template.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings of the illustrative embodiments of the present invention and their description are for the purpose of illustrating the invention and are not to be construed as unduly limiting the scope of the invention. In the drawings:
fig. 1 is a schematic overall structure diagram of an extension template for a bridge pier stud according to the utility model discloses an application embodiment.
Reference numerals
1: fixing the template; 2: pier stud template.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only embodiments of the present invention, not all embodiments. Based on the embodiments in the application of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present application described herein may be made. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model relates to an extension template for bridge pier stud, which comprises a fixed template 1 and a pier stud template 2, wherein the fixed template 1 is arranged around the upper end of the old pier stud of the bridge body, and the pier stud template 2 is arranged on the fixed template 1; the fixed die plate 1 at least bears the weight of the fixed die plate 1 and the pier stud die plate 2, the detachable setting is in the upper end of the old pier stud of the bridge body, the fixed die plate 1 is connected with the pier stud die plate 2, and the pier stud die plate 2 is constructed to serve as a base.
The utility model discloses apply for preferred embodiment, pier stud template 2 sets up on fixed die plate 1's the upper end border, this moment, fixed die plate 1 with pier stud template 2 all direct with the old pier stud contact setting of pontic, the size of the new pier stud that is used for the concatenation is not more than the size of old pier.
The utility model discloses in the other embodiments of the application, 2 laminating of pier stud templates the old pier stud of the pontic, the fixed die plate encloses and closes the pier stud template sets up the periphery of the old pier stud of the pontic. In the present invention, in a further preferred embodiment, a rubber pad is disposed between the pier stud template 2 and/or the fixed template 1 and the old pier stud of the bridge body, so as to prevent friction between the pier stud template 2 and/or the fixed template 1 during the fastening process, or damage to the pier stud or the template (pier stud template/fixed template) of the bridge body due to friction.
In the preferred embodiment of the present invention, the fixing form 1 includes a fastener, a form and a stirrup, and the fastener fixes the enclosing form on the old pier stud of the bridge body through the stirrup; the fastening piece is fixedly connected with the enclosing template through an anchor bolt; in a further preferred embodiment of the present invention, the fixed form 1 includes a safety net. The safety protection net is arranged on the periphery of the fixed template 1.
According to the utility model discloses an application is used for bridge pier column's construction method of lengthening includes, above-mentioned any one the template that is used for bridge pier column's lengthening.
The method comprises the following specific steps:
polishing before installing the template, wherein the template comprises a fixed template and a pier stud template;
installing the pier stud template by adopting a shaping steel mould;
and fixing the pier stud template through a fixing template.
Furthermore, the device comprises a rubber pad, and the rubber pad is arranged between the pier stud template and/or the fixed template and the old pier stud of the bridge body.
In particular to a construction method for lengthening a bridge pier column, which comprises the following steps,
1. support system design and installation
By adopting the hoop method, the hoop (fixed template) bears the weight of the templates (fixed template/pier stud template), the steel bars (stirrups), the concrete, the working platform and the like, the safety of the hoop (fixed template) is guaranteed to be very important, and the bearing capacity of the hoop (fixed template) has 2-4 times of safety factor after checking calculation.
2. Pier body template
The pier body template adopts the supporting template of professional steel construction processing factory production, and the template panel adopts 6mm steel sheet preparation usually, and the concrete template specification is accomplished through professional template design. The template is uniformly processed and manufactured in a factory, and the template processing must ensure that the template has enough strength, rigidity and flatness.
After the template is dismantled every time, the deformation condition of the template is checked and repaired, and the smooth and smooth surface of the template in the construction process is ensured.
3. Preparation before installation of formwork
All newly-processed templates are ground before use and are assembled in a trial mode to check the geometric dimension, flatness, adjacent height difference, bolt hole connection condition, seam tightness and the like of the templates. After the trial assembly is qualified through inspection, each module is numbered, and assembly is carried out according to the number during actual installation.
4. Formwork installation
The pier stud template is installed by adopting a shaping steel die, the surface is required to be smooth, the seam is required to be smooth, and the section size meets the requirement. The vertical verticality of the pier stud is strictly controlled. In order to ensure the apparent quality of the pier stud, the template adopts a newly manufactured steel template. After assembling, the joints of the templates are sealed, the inner walls are polished and ground by a grinding wheel, and the templates are connected by bolts.
And hoisting and aligning the template by using a crane. The crane must be under the direction of a specially-assigned person and be especially safe. When in alignment, the lower opening is firstly aligned with the outer line of the steel template marked for measurement, and the lower opening of the steel template is fixed by using a wood wedge and a positioning steel bar; three guy cables are pulled out of the steel template in the cross direction to be connected with the ground anchor, and then the length of the guy cables is adjusted to correct the upper opening of the steel template, so that the center of the upper opening of the steel template is ensured to be matched with the projection center of the pier stud on the pile foundation; after the steel formwork is inosculated, the cable wind rope is fixed so as to ensure the stability and the position accuracy of the steel formwork, sundries in the steel formwork are cleaned up, and after the inspection of a supervision engineer is qualified, the next procedure is carried out.
5. Pouring of concrete
The bridge concrete is intensively mixed by adopting a mixing station, the tank truck is wholly mixed and conveyed to a construction site, and the crane is used for hoisting the concrete and pouring the concrete in a mould through a speed-reducing tandem cylinder. The thickness of the concrete pouring layer is not more than 30cm, the concrete is evenly and centrally discharged, and the string cylinder is additionally arranged at the die opening to reduce the falling height and speed of the concrete and prevent the concrete from being separated. The concrete is vibrated by an inserted vibrating bar, the vibration thickness of adjacent layers is 5-10 cm, the vibration direction is circulated from the middle to the edge, the vibration time stops sinking by the concrete on the surface, no air bubbles are emitted, the surface is flat, and the vibration is dense when the surface is overflowed. During vibration, the steel bars are not touched or shifted. The concrete pouring process needs to be protected from rain, and the concrete pouring needs to avoid high temperature in the daytime. And if the air temperature is higher during pouring, sprinkling water to the template during pouring, and reducing the temperature of the template. The concrete pouring needs to be carried out continuously, and the intermittence time is smaller than the initial setting time of the concrete on the front layer when the intermittence is interrupted. When the height of the pier stud exceeds 2 m during pouring, the concrete is poured into the mold and must be decelerated by adopting the tandem cylinder.
In the concrete pouring process, the unloading speed is controlled, the template deformation condition in the pouring process is particularly noticed, a specially-assigned person is dispatched to track and check, and the concrete pouring construction record is well made.
The utility model discloses in the application embodiment, adopt the mode that changes pier stud template overlap joint, bear and the overlap joint pier stud template through fixed die plate, the pier stud template that only needs to be equipped with extension position engineering has been reached, need not be equipped with the purpose of the template of all pier studs, thereby realized the management and control that is favorable to construction cost and time limit for a project, reduction of erection time's technical effect, and then solved because conventional pier stud construction need utilize the cushion cap as pier stud template assembly basis, take the template to connect and just can construct pier stud and connect long engineering after long, and rebuild the bridge and be located river course and zanjon, the technical problem that supreme construction can't satisfy construction requirements and cause at all from down in conventional pier stud template.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An extension form for a bridge pier, comprising:
the fixed template is arranged at the upper end of the old pier stud of the bridge body in a surrounding manner;
the pier stud template is arranged on the fixed template;
the fixed template at least bears the weight of fixed template and pier stud template, and detachable setting is in the upper end of the old pier stud of the pontic connects the pier stud template, for the building of pier stud template serves as the base station.
2. The lengthening formwork for a bridge pier according to claim 1, wherein the pier stud formwork is disposed on an upper end edge of the fixed formwork.
3. The lengthening template for a bridge pier stud according to claim 1, wherein the pier stud template is attached to an old pier stud of the bridge body, and the fixing template encloses the pier stud template and is disposed at the periphery of the old pier stud of the bridge body.
4. The lengthening template for a bridge pier according to any one of claims 2 to 3, wherein a rubber pad is provided between the pier template and/or the fixed template and the old pier of the bridge body.
5. The extension form for a bridge pier according to claim 4, wherein the fixing form comprises a fastener, a closure form and a stirrup, and the fastener fixes the closure form to the old pier of the bridge body through the stirrup.
6. The extension form for a bridge pier stud of claim 5, wherein the fastener is fixedly connected to the enclosure form by an anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922286759.1U CN211689933U (en) | 2019-12-17 | 2019-12-17 | Lengthening template for bridge pier stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922286759.1U CN211689933U (en) | 2019-12-17 | 2019-12-17 | Lengthening template for bridge pier stud |
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| CN211689933U true CN211689933U (en) | 2020-10-16 |
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| CN201922286759.1U Active CN211689933U (en) | 2019-12-17 | 2019-12-17 | Lengthening template for bridge pier stud |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886234A (en) * | 2019-12-17 | 2020-03-17 | 中交路桥建设有限公司 | Lengthening template for bridge pier column and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886234A (en) * | 2019-12-17 | 2020-03-17 | 中交路桥建设有限公司 | Lengthening template for bridge pier column and construction method |
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