CN213173358U - Side span cast-in-place construction support system - Google Patents
Side span cast-in-place construction support system Download PDFInfo
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- CN213173358U CN213173358U CN202021412821.3U CN202021412821U CN213173358U CN 213173358 U CN213173358 U CN 213173358U CN 202021412821 U CN202021412821 U CN 202021412821U CN 213173358 U CN213173358 U CN 213173358U
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Abstract
本实用新型公开了一种边跨现浇施工支架体系，包括基座，基座上设置有多个墩身和锚梁，多个墩身顶部设置有一个水平的台帽，台帽上竖向安装有多个临时钢塔，临时钢塔的顶部与钢塔背索的一端固定相连，钢塔背索的另一端锚固在锚梁上；所述的台帽上固定安装有三角支撑稳固架，多个三角支撑稳固架的支撑纵梁的另一端之间通过横梁固定相连，临时钢塔的顶部与钢塔前索的一端相连，钢塔前索的另一端固定在横梁上。本实用新型中三角支撑稳固架、临时钢塔及基座形成一个自平衡体系，承担一部分现浇段自重荷载，减轻三角钢桁架支架所承受的荷载，使结构更加安全可靠。
The utility model discloses a side span cast-in-place construction support system, comprising a base, a plurality of pier bodies and anchor beams are arranged on the base, a horizontal platform cap is arranged on the top of the plurality of pier bodies, and the platform cap is vertically arranged A plurality of temporary steel towers are installed, the top of the temporary steel tower is fixedly connected with one end of the steel tower back cable, and the other end of the steel tower back cable is anchored on the anchor beam; the table cap is fixedly installed with a triangular support stabilizer, The other ends of the supporting longitudinal beams of the plurality of triangular support stabilizers are fixedly connected by cross beams, the top of the temporary steel tower is connected with one end of the front cable of the steel tower, and the other end of the front cable of the steel tower is fixed on the cross beam. In the utility model, the triangular support stabilizer, the temporary steel tower and the base form a self-balancing system, which bears a part of the self-weight load of the cast-in-place section, reduces the load borne by the triangular steel truss bracket, and makes the structure more secure and reliable.
Description
Technical Field
The utility model belongs to bridge construction field relates to the cast-in-place construction of sidespan, concretely relates to cast-in-place construction support system of sidespan.
Background
The bridge form built in China has been developed from the early stage mainly including simple girder bridges, arch bridges, steel truss bridges and the like to five bridge systems including girder bridges, arch bridges, steel bridge bridges, cable-stayed bridges, suspension bridges and the like. The cantilever construction method is used for constructing a prestressed concrete bridge, and is initiated by the former Federal Germany in 1950. In the middle of the 80's of the 20 th century, China began to use foreign prestressed concrete continuous steel bridges for reference. From this point on, this bridge type has gained wide application and a large amount of popularization in our country. Hundreds of long-span continuous beam bridges have been built in recent decades, and good social and economic benefits are obtained.
In the construction of continuous beam side span in prior art, generally adopt interim support to support the case roof beam main part, include and set up full cloth formula support, set up the support and set up the support base bottom the support at the bottom plate of case roof beam and pterygoid lamina below at the case roof beam inside. Has the defects of high stability, low dosage, inconvenient turnover and the like along with the increase of the pier body. For example, the prior art discloses a triangular support frame and a box girder combined support frame thereof, which achieve the purposes of increasing the stability and reducing the material consumption, but have the problems of insufficient stability when the height of a bridge body is increased, and the like.
Disclosure of Invention
Not enough and the defect to above-mentioned prior art, the utility model aims to provide a cast-in-place construction support system of sidespan to solve the not enough problem of support steadiness of traditional cast-in-place construction support of sidespan.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a side span cast-in-place construction support system comprises a base, wherein a plurality of pier bodies and anchor beams are arranged on the base, a horizontal table cap is arranged at the tops of the pier bodies, a plurality of temporary steel towers are vertically arranged on the table cap, the tops of the temporary steel towers are fixedly connected with one ends of steel tower back cables, and the other ends of the steel tower back cables are anchored on the anchor beams;
the triangular support stabilizing frame is fixedly arranged on the table cap and corresponds to the pier bodies one by one, the triangular support stabilizing frame comprises support longitudinal beams, one ends of the support longitudinal beams are fixedly arranged on the table cap, the support longitudinal beams are horizontally arranged along the longitudinal direction, the other end of each support longitudinal beam is fixedly connected with one end of one support oblique beam, and the other ends of the support oblique beams are fixedly arranged on the corresponding pier bodies;
the other ends of the supporting longitudinal beams of the triangular supporting and stabilizing frames are fixedly connected through a cross beam, the top of the temporary steel tower is connected with one end of a front cable of the steel tower, and the other end of the front cable of the steel tower is fixed on the cross beam.
The utility model discloses still have following technical characteristic:
the triangular support stabilizing frames are also provided with a plurality of bearing cross beams perpendicular to the support longitudinal beams, and the bearing cross beams are provided with a plurality of distribution beams perpendicular to the bearing cross beams; the longitudinal intervals of two adjacent bearing cross beams are equal, and the transverse intervals of two adjacent distributing beams are equal.
The table cap is provided with a plurality of side span cast-in-situ section girder supports.
The longitudinal triangular reinforcing frame is arranged in the triangular supporting and stabilizing frame, a first corner of the longitudinal triangular reinforcing frame is fixed on the supporting longitudinal beam, a second corner of the longitudinal triangular reinforcing frame is fixed on the supporting oblique beam, and a third corner of the longitudinal triangular reinforcing frame is fixed on the pier body.
One end of the supporting longitudinal beam is fixedly installed with an embedded part preset in the table cap, the other end of the supporting oblique beam is fixedly installed with an embedded part preset in the pier body, and a third angle of the triangular reinforcing frame is fixedly installed with the embedded part preset in the pier body.
The embedded part comprises a fixed mounting plate, one end of a connecting rod is vertically arranged on the fixed mounting plate, and a claw-shaped hook is arranged at the other end of the connecting rod.
And a transverse reinforcing frame is arranged between the adjacent triangular supporting and stabilizing frames.
The surface of the pier body connected with the triangular support stabilizing frame is an inclined surface.
The anchor beam divide apart the base into counter weight portion and supporting part, a plurality of province's silo have been seted up along vertically to the supporting part, the province's silo is divided into a plurality of support bars with the supporting part, is provided with a pier shaft on every support bar.
Compared with the prior art, the utility model, following technological effect has:
(I) the utility model discloses well triangle support steady rest, interim steel tower and base form a self-balancing system, undertake the load of partly cast-in-place section dead weight, alleviate the load that three angle steel truss support bore, make the structure safe and reliable more to be applicable to the longer bridge of the cast-in-place section of sidespan.
(II) the utility model discloses the simple triangular structure of well triangle-support steady frame makes the combination of the cast-in-place construction support of sidespan be a firm triangle-shaped support system, has realized the cast-in-place section construction support of sidespan firm support, and is adapted to different spans, and the practicality is strong.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view structure diagram of the present invention.
Fig. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic structural diagram of an embedded part of the present invention.
The meaning of the individual reference symbols in the figures is: 1-base, 2-pier body, 3-anchor beam, 4-table cap, 5-temporary steel tower, 6-back cable, 7-support longitudinal beam, 8-support oblique beam, 9-cross beam, 10-front cable, 11-bearing cross beam, 12-distribution beam, 13-side span cast-in-place section main beam support, 14-triangular reinforcing frame, 15-material saving groove, 16-side span cast-in-place section main beam, 17-embedded part, 18-transverse reinforcing frame, 19-triangular support reinforcing frame and 20-support bar;
101-weight, 102-support;
1701-bolster, 1702-rod, 1703-claw hook.
The following detailed description of the present invention will be made with reference to the accompanying drawings.
Detailed Description
It should be noted that all the components in the present invention, unless otherwise specified, are all the components known in the art.
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example 1:
the embodiment provides a side span cast-in-place construction support system, which comprises a base 1, wherein a plurality of pier bodies 2 and anchor beams 3 are arranged on the base 1, a horizontal table cap 4 is arranged at the top of each pier body 2, a plurality of temporary steel towers 5 are vertically arranged on the table cap 4, the tops of the temporary steel towers 5 are fixedly connected with one ends of steel tower back cables 6, and the other ends of the steel tower back cables 6 are anchored on the anchor beams 3, as shown in fig. 1 to 4;
the bench caps 4 are fixedly provided with triangular support stabilizing frames 19 which correspond to the pier bodies 2 one by one, each triangular support stabilizing frame 19 comprises a support longitudinal beam 7, one end of each support longitudinal beam 7 is fixedly arranged on the bench cap 4, the support longitudinal beams 7 are horizontally arranged along the longitudinal direction, the other end of each support longitudinal beam 7 is fixedly connected with one end of one support oblique beam 8, and the other end of each support oblique beam 8 is fixedly arranged on the corresponding pier body 2;
the other ends of the supporting longitudinal beams 7 of the triangular supporting and stabilizing frames 19 are fixedly connected through a cross beam 9, the top of the temporary steel tower 5 is connected with one end of a steel tower front cable 10, and the other end of the steel tower front cable 10 is fixed on the cross beam 9.
In this embodiment, the anchor beam 3 may be used to anchor the temporary steel tower back cable 6 and may also be used as a retaining wall for retaining soil.
In this embodiment, the temporary steel tower 5 is a truss tower, the front steel tower front cable 10 pulls the plurality of triangular support stabilizing frames 19, and the rear steel tower back cable 6 is anchored on the anchor beam 3, so that the whole triangular support stabilizing frame 19, the temporary steel tower 5 and the base 1 form a self-balancing system. The temporary steel tower 5 bears the dead load of a part of the main beam 16 of the side-span cast-in-place section, reduces the load born by the triangular support stabilizing frame 19, ensures that the structure is safer and more reliable, and is suitable for bridges with longer side-span cast-in-place sections.
In the embodiment, the supporting oblique beam 8 can better disperse the pressure on the triangular supporting and stabilizing frame 19, effectively solves the problem of poor stability of the traditional multi-upright-rod supporting side-span cast-in-place construction support, and provides a safe and stable side-span cast-in-place construction support.
In this embodiment, as an optimization, the pier shaft 2 is three, the corresponding triangular support fixing frame 19 is also three, the temporary steel tower 5 is two, and the specific number can be set according to actual needs.
As a preferable scheme of this embodiment, a plurality of bearing beams 11 perpendicular to the support longitudinal beams 7 are further disposed on the plurality of triangular support stabilizing frames 19, and a plurality of distribution beams 12 perpendicular to the bearing beams 11 are disposed on the bearing beams 11; the longitudinal distances between two adjacent load-bearing cross beams 11 are equal, and the transverse distances between two adjacent distribution beams 12 are equal. The load-bearing cross beams 11 and the distribution beams 12 are used to better distribute the weight of the main beams 16 of the side span cast-in-place section. In this embodiment, the bearing beam 11 and the distribution beam 12 are both i-shaped steel beams.
Further, a plurality of side span cast-in-place section main beam supports 13 are arranged on the table cap 4. The side span cast-in-place section girder support 13 is used for bearing the weight of the side span cast-in-place section girder 16 applied on the table cap 4, and simultaneously, the side span cast-in-place section girder support is matched with the bearing cross beam 11 and the distribution beam 12 to jointly bear the side span cast-in-place section girder 16.
In a preferred embodiment of the present invention, a longitudinal triangular reinforcing frame 14 is disposed in the triangular supporting and stabilizing frame 19, a first corner of the longitudinal triangular reinforcing frame 14 is fixed to the supporting longitudinal beam 7, a second corner of the longitudinal triangular reinforcing frame 14 is fixed to the supporting oblique beam 8, and a third corner of the longitudinal triangular reinforcing frame 14 is fixed to the pier body 2. The longitudinal triangular reinforcing frame 14 ensures the stability of the triangular support stabilizing frame 19.
As a preferable scheme of this embodiment, one end of the supporting longitudinal beam 7 is fixedly installed with an embedded part 17 preset in the table cap 4, the other end of the supporting oblique beam 8 is fixedly installed with an embedded part 17 preset in the pier body 2, and a third angle of the triangular reinforcing frame 14 is fixedly installed with an embedded part 17 preset in the pier body 2. Preferably, the embedment 17 includes a fixed mounting plate 1701 on which one end of the connection bar 1702 is vertically disposed, and the other end of the connection bar 1702 is provided with a claw hook 1703. The claw-shaped hook 1703 is provided to prevent the horizontal rod from being broken due to excessive tensile force applied thereto and adhesion to concrete.
As a preferable scheme of this embodiment, a transverse reinforcing frame 18 is provided between adjacent triangular support stabilizing frames 19, and the transverse reinforcing frame 18 ensures the stability of the triangular support stabilizing frames 19.
As a preferable scheme of this embodiment, the surface of the pier body 2 connected to the triangular support stabilizing frame 19 is an inclined surface, and a more stable triangular stressed structure can be formed between the inclined surface and the triangular support stabilizing frame 19.
As a preferable scheme of the present embodiment, the anchor beam 3 divides the base 1 into the counterweight portion 101 and the supporting portion 102, the supporting portion 102 is provided with a plurality of material saving grooves 15 along the longitudinal direction, the material saving grooves 15 divide the supporting portion 102 into a plurality of supporting bars 20, and each supporting bar 20 is provided with one pier body 2. The material-saving groove 15 can save materials for the side span cast-in-place construction support system. The counterweight part 101 is pressed by roadbed filling, and can resist the overturning moment generated by the self weight of the cast-in-place section during construction, so that the structure is more stable.
The utility model discloses a cast-in-place construction stake system of sidespan is when using, specifically includes following step:
firstly, arranging embedded parts 17 at corresponding positions of a platform cap 4 and a pier body 2, pouring a base 1, the pier body 2, an anchor beam 3 and the platform cap 4 after reinforcing bars are arranged, and pressing a counterweight part 101 of the base 1 by roadbed filling after poured concrete reaches qualified strength to increase stability.
Secondly, mounting triangular support stabilizing frames 19 on the embedded parts 17 of the table cap 4 and the pier body 2, fixing triangular reinforcing frames 14 in the triangular support stabilizing frames 19, fixing transverse reinforcing frames 18 between the adjacent triangular support stabilizing frames 19, and fixedly connecting the other ends of the supporting longitudinal beams 7 of the triangular support stabilizing frames 19 through the cross beam 9.
Thirdly, a temporary steel tower 5 is arranged on the table cap 4, the top of the temporary steel tower 5 is fixedly connected with one end of a steel tower back cable 6, and the other end of the steel tower back cable 6 is anchored on the anchor beam 3; the top of the temporary steel tower 5 is connected with one end of a front steel tower cable 10, and the other end of the front steel tower cable 10 is fixed on the cross beam 9.
Fourthly, laying a bearing beam 11 and a distribution beam 12 on the triangular support stabilizing frame 19, and laying a side span cast-in-situ section girder support 13 on the table cap 4.
Fifthly, installing a template and pouring a side span concrete cast-in-place section, namely pouring the side span cast-in-place section main beam 16;
and sixthly, closing the side span after the concrete strength of the main beam 16 of the side span cast-in-place section meets the requirement.
And seventhly, removing the template after the closure section reaches the required strength, and sequentially removing the bearing cross beam 11, the distribution beam 12, the triangular support stabilizing frame 19 and the temporary steel tower 5.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412821.3U CN213173358U (en) | 2020-07-16 | 2020-07-16 | Side span cast-in-place construction support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412821.3U CN213173358U (en) | 2020-07-16 | 2020-07-16 | Side span cast-in-place construction support system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213173358U true CN213173358U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021412821.3U Expired - Fee Related CN213173358U (en) | 2020-07-16 | 2020-07-16 | Side span cast-in-place construction support system |
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| CN (1) | CN213173358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605241A (en) * | 2021-07-29 | 2021-11-05 | 中交二公局第三工程有限公司 | Large-span cable-stayed beam construction support and method for high-speed road bent frame pier |
-
2020
- 2020-07-16 CN CN202021412821.3U patent/CN213173358U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605241A (en) * | 2021-07-29 | 2021-11-05 | 中交二公局第三工程有限公司 | Large-span cable-stayed beam construction support and method for high-speed road bent frame pier |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |