CN203729193U - Low tower stay cable reinforced T-type rigid framework system with suspension beams - Google Patents
Low tower stay cable reinforced T-type rigid framework system with suspension beams Download PDFInfo
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- CN203729193U CN203729193U CN201420048149.2U CN201420048149U CN203729193U CN 203729193 U CN203729193 U CN 203729193U CN 201420048149 U CN201420048149 U CN 201420048149U CN 203729193 U CN203729193 U CN 203729193U
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Abstract
The utility model relates to a low tower stay cable reinforced T-type rigid framework system with suspension beams. With the sharply increased highway traffic, the overload phenomenon is severe, so that the cantilever end of a T-type rigid framework with suspension beams is too large in deflection, part of a box girder cracks, a bridge surface system is damaged, and normal use functions and traffic safety of a bridge are severely affected. Two additionally arranged anchoring beams are arranged at the bottom of the cantilever end of the original box girder of the T-type rigid framework system. An additionally arranged bridge tower is fixedly connected with a bridge pier through a tower and pier connection structure and is internally provided with bridge tower cable saddles in a welding mode; stay cables penetrate through the bridge tower cable saddles and are anchored on the outer sides of the additionally arranged anchoring beams. The low tower stay cable structures are additionally arranged in the original T-type rigid framework system with the suspension beams, the distribution of bridge internal force and section stress is changed, reinforced materials are fully utilized, the original structure has the strength and rigidity for bearing preset designed loads, the service life is prolonged, and the driving safety is enhanced.
Description
Technical field
the utility model relates to a kind of bridge construction, is specifically related to the T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable is reinforced.
Background technology
Along with the increase rapidly of traffic volume of highway, overloading is day by day serious, causes the T-shaped firm structure of band drop in beam to occur the diseases such as cantilever end amount of deflection is excessive, case beam Local Cracking, bridge deck damage, has had a strong impact on normal usage function and the traffic safety of bridge.
Summary of the invention
The purpose of this utility model is to provide the T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable is reinforced, and makes to have with the T-shaped rigid frame bridge of drop in beam the strength and stiffness that bear predetermined design load by reinforcing.
The technical scheme that the utility model adopts is:
The T-shaped firm structure system of band drop in beam that short tower suspension cable is reinforced, comprises existing T-shaped firm structure, is made up of the box girder cantilever of bridge pier and Dun Ding both sides, it is characterized in that:
The both lateral sides of bridge pier Dun Ding all connects the fixed vertical newly-increased bridge tower of structure by tower pier, in newly-increased bridge tower, is welded with bridge tower cable saddle;
The box girder cantilever bottom of T-shaped firm structure both sides is provided with horizontal newly-increased anchoring beam, and between newly-increased anchoring beam lateral ends and bridge tower cable saddle, stretch-draw anchor has suspension cable.
In newly-increased bridge tower, be welded with upper and lower two bridge tower cable saddles, the box girder cantilever bottom of T-shaped firm structure both sides is the forward and backward newly-increased anchoring beam of twice that arranges all, suspension cable is anchored at the newly-increased anchoring beam of forward and backward twice outside through upper and lower two bridge tower cable saddles, and two groups of suspension cables are parallel to each other.
Tower pier connects structure place, cuts the concrete region that T-shaped rigid frame bridge pier Dun Ding place box beam flange plate conflicts with newly-increased bridge tower, is furnished with pedestal steel mesh reinforcement;
The pedestal place of newly-increased bridge tower arranges shear pin, and shear pin and the former concrete junction bar planting of T-shaped firm structure are also welded with shear pin;
Bridge tower cable saddle is provided with a point fiber tube, at cable saddle section perfusion self-compacting concrete.
Laterally between relative newly-increased bridge tower, be provided with gooseneck.
The utlity model has following advantage:
The utility model, in the T-shaped strong bridge structure of original tape drop in beam, is set up short tower suspension cable structure, has changed the distribution of bridge internal force and section stress, take full advantage of reinforcement material, strength and stiffness original structure bear with predetermined design load, increase the service life, and increase travel safety.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure, 1-increases anchoring beam newly, and 2-increases bridge tower newly, 3-bridge tower cable saddle, and 4-suspension cable, 5-tower pier connects structure.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
The T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable that the utility model relates to is reinforced, on the architecture basics of the T-shaped firm structure of former tradition, newly-increased bridge tower and suspension cable etc., the T-shaped firm structure of the band drop in beam having come into operation is reinforced, change the distribution of former bridge internal force and section stress, there is variation in bridge, consolidation effect is obvious.
Concrete structure is referring to Fig. 1.The utility model comprises existing T-shaped firm structure, is made up of the box girder cantilever of bridge pier and Dun Ding both sides.The both lateral sides of bridge pier Dun Ding all connects the fixed vertical newly-increased bridge tower 2 of structure 5 by tower pier, in newly-increased bridge tower 2, is welded with bridge tower cable saddle 3.The box girder cantilever bottom at T-shaped firm structure two ends is provided with horizontal newly-increased anchoring beam 1, and between newly-increased anchoring beam 1 lateral ends and bridge tower cable saddle 3, stretch-draw anchor has suspension cable 4, forms the new architecture of the two rope face low-pylon cable-stayed bridge band drop in beams of single tower.In construction stage deck paving dismounting, inclined guy cable stretching, new Surfacing Construction etc. and bridge operation stage, taking T structure prestressed concrete box girder be drop in beam roof and floor stress in compressive stress state as Suo Li design considerations.
In newly-increased bridge tower 2, be welded with upper and lower two bridge tower cable saddles 3, the box girder cantilever bottom at T-shaped firm structure two ends is the forward and backward newly-increased anchoring beam 1 of twice that arranges all, suspension cable 4 is anchored at the newly-increased anchoring beam of forward and backward twice 1 outside through upper and lower two bridge tower cable saddles 3, and two groups of suspension cables 4 are parallel to each other.
Tower pier connects structure 5 places, cuts T-shaped rigid frame bridge pier Dun Ding place box beam flange plate and the concrete region that newly-increased bridge tower 2 conflicts, and is furnished with pedestal steel mesh reinforcement; The pedestal place of newly-increased bridge tower 2 arranges shear pin, and shear pin and the former concrete junction bar planting of T-shaped firm structure are also welded with shear pin; Bridge tower cable saddle 3 is provided with point fiber tube passing for Cable Stayed Steel twisted wire, at cable saddle section perfusion self-compacting concrete.
When construction suspension cable 4 and anchoring beam 1, suggestion is set up suspension bracket to long rope anchoring, tackline anchoring section respectively by T structure symmetry, forms operation platform under case beam.Also have the cradling function of drop in beam bearing replacement concurrently with duration rope suspension bracket.Steel sticking is carried out in cable-girder anchorage zone, boring anchor plate, plantation screw rod, builds newly-increased tooth plate and web.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (4)
1. the T-shaped firm structure system of band drop in beam that short tower suspension cable is reinforced, comprises existing T-shaped firm structure, is made up of the box girder cantilever of bridge pier and Dun Ding both sides, it is characterized in that:
The both lateral sides of bridge pier Dun Ding all connects the fixed vertical newly-increased bridge tower (2) of structure (5) by tower pier, in newly-increased bridge tower (2), is welded with bridge tower cable saddle (3);
The box girder cantilever bottom of T-shaped firm structure both sides is provided with horizontal newly-increased anchoring beam (1), and between newly-increased anchoring beam (1) lateral ends and bridge tower cable saddle (3), stretch-draw anchor has suspension cable (4).
2. the T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable according to claim 1 is reinforced, is characterized in that:
In newly-increased bridge tower (2), be welded with upper and lower two bridge tower cable saddles (3), the box girder cantilever bottom of T-shaped firm structure both sides is the forward and backward newly-increased anchoring beam (1) of twice that arranges all, suspension cable (4) is anchored at the newly-increased anchoring beam (1) of forward and backward twice outside through upper and lower two bridge tower cable saddles (3), and two groups of suspension cables (4) are parallel to each other.
3. the T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable according to claim 2 is reinforced, is characterized in that:
Tower pier connects structure (5) to be located, and cuts T-shaped rigid frame bridge pier Dun Ding place box beam flange plate and the concrete region that newly-increased bridge tower (2) conflicts, and is furnished with pedestal steel mesh reinforcement;
The pedestal place of newly-increased bridge tower (2) arranges shear pin, and shear pin and the former concrete junction bar planting of T-shaped firm structure are also welded with shear pin;
Bridge tower cable saddle (3) is provided with a point fiber tube, at cable saddle section perfusion self-compacting concrete.
4. the T-shaped firm structure system of band drop in beam that a kind of short tower suspension cable according to claim 3 is reinforced, is characterized in that:
Laterally between relative newly-increased bridge tower (2), be provided with gooseneck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048149.2U CN203729193U (en) | 2014-01-26 | 2014-01-26 | Low tower stay cable reinforced T-type rigid framework system with suspension beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048149.2U CN203729193U (en) | 2014-01-26 | 2014-01-26 | Low tower stay cable reinforced T-type rigid framework system with suspension beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729193U true CN203729193U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420048149.2U Expired - Fee Related CN203729193U (en) | 2014-01-26 | 2014-01-26 | Low tower stay cable reinforced T-type rigid framework system with suspension beams |
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| CN (1) | CN203729193U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100095A (en) * | 2017-06-14 | 2017-08-29 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge oblique pull ruggedized construction and its construction method |
| CN107119582A (en) * | 2017-06-14 | 2017-09-01 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge back of the body tower oblique pull ruggedized construction and its construction method |
| CN107119583A (en) * | 2017-06-14 | 2017-09-01 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge back of the body tower oblique pull ruggedized construction of double width and its construction method |
| CN107151987A (en) * | 2017-06-14 | 2017-09-12 | 沈阳建筑大学 | A kind of the oblique pull ruggedized construction and its construction method of the T-shaped rigid frame bridge of double width |
| CN107386133A (en) * | 2017-06-14 | 2017-11-24 | 暨南大学 | The oblique pull ruggedized construction and its construction method of a kind of continuous rigid frame bridge |
| CN107724244A (en) * | 2017-10-26 | 2018-02-23 | 中铁第四勘察设计院集团有限公司 | Temporary T structure and its construction method without bearing continuous rigid frame end bay beam section composition |
| CN109024319A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of the low-pylon cable-stayed bridge ruggedized construction and construction method of double width continuous rigid frame bridge |
| CN110886223A (en) * | 2019-11-06 | 2020-03-17 | 中国铁路设计集团有限公司 | Construction method for concreting steel-concrete combined tower and concrete box girder |
| CN114277683A (en) * | 2021-11-23 | 2022-04-05 | 中国建筑一局(集团)有限公司 | Large-gradient long-cantilever bridge deck pavement structure |
-
2014
- 2014-01-26 CN CN201420048149.2U patent/CN203729193U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119582B (en) * | 2017-06-14 | 2023-01-10 | 沈阳建筑大学 | T-shaped rigid frame bridge back tower cable-stayed reinforcing structure and construction method thereof |
| CN107119582A (en) * | 2017-06-14 | 2017-09-01 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge back of the body tower oblique pull ruggedized construction and its construction method |
| CN107119583A (en) * | 2017-06-14 | 2017-09-01 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge back of the body tower oblique pull ruggedized construction of double width and its construction method |
| CN107151987A (en) * | 2017-06-14 | 2017-09-12 | 沈阳建筑大学 | A kind of the oblique pull ruggedized construction and its construction method of the T-shaped rigid frame bridge of double width |
| CN107386133A (en) * | 2017-06-14 | 2017-11-24 | 暨南大学 | The oblique pull ruggedized construction and its construction method of a kind of continuous rigid frame bridge |
| CN107100095A (en) * | 2017-06-14 | 2017-08-29 | 沈阳建筑大学 | A kind of T-shaped rigid frame bridge oblique pull ruggedized construction and its construction method |
| CN107386133B (en) * | 2017-06-14 | 2019-03-05 | 暨南大学 | A kind of the oblique pull ruggedized construction and its construction method of continuous rigid frame bridge |
| CN107724244A (en) * | 2017-10-26 | 2018-02-23 | 中铁第四勘察设计院集团有限公司 | Temporary T structure and its construction method without bearing continuous rigid frame end bay beam section composition |
| CN109024319A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of the low-pylon cable-stayed bridge ruggedized construction and construction method of double width continuous rigid frame bridge |
| CN109024319B (en) * | 2018-09-21 | 2023-12-15 | 湖北省交通规划设计院股份有限公司 | Low-tower cable-stayed bridge reinforcing structure of double-amplitude continuous rigid frame bridge and construction method |
| CN110886223A (en) * | 2019-11-06 | 2020-03-17 | 中国铁路设计集团有限公司 | Construction method for concreting steel-concrete combined tower and concrete box girder |
| CN114277683A (en) * | 2021-11-23 | 2022-04-05 | 中国建筑一局(集团)有限公司 | Large-gradient long-cantilever bridge deck pavement structure |
| CN114277683B (en) * | 2021-11-23 | 2024-03-19 | 中国建筑一局(集团)有限公司 | Large-gradient long-cantilever bridge deck pavement structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20220126 |