CN202830754U - Continuous deck device used for bridge - Google Patents
Continuous deck device used for bridge Download PDFInfo
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- CN202830754U CN202830754U CN 201220238339 CN201220238339U CN202830754U CN 202830754 U CN202830754 U CN 202830754U CN 201220238339 CN201220238339 CN 201220238339 CN 201220238339 U CN201220238339 U CN 201220238339U CN 202830754 U CN202830754 U CN 202830754U
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- bridge floor
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- deck device
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Abstract
The utility model provides a continuous deck device used for a bridge. The continuous deck device used for the bridge comprises an arch structure. Installation faces used for being connected with a deck beam are arranged at two sides of the arched structure. I-beam-shaped rib strips at a certain intervals are arranged along the width direction above the arch structure. A construction measure of the I-shaped rib type arched continuous deck device is provided, the continuous deck device is made of steel plate materials, the steel plate materials are processed into the arched structure, the I-bean-shaped rib strips at a certain intervals are arranged on the arched structure, and therefore the goal of delaying and lightening concrete crazing of a deck continuous portion can be achieved. The continuous deck device is used for the bridge, the current situation that continuous structures of existing highway bridge decks is prone to damage and difficult to repair can be changed, durability of the continuous structure of the decks is enhanced, traffic safety of the bridge is ensured, driving comfort of highway bridges is improved, the problem, caused by poor processing of the deck continuous portion, of water disoperation of piers and capping beams is solved, and therefore service life of the highway bridge is effectively prolonged.
Description
Technical field
The utility model relates to the bridge floor continuation apparatus of beam bridge.
Background technology
Along with the progress of society and economic fast development, the proportion of the shared road route total length of bridge is more and more higher on the road, on some advanced road even reach 40%.In all kinds of bridges, simply supported girder bridge is owing to easy construction, cost are low, to use the most general a kind of bridge type in the present bridge, simply supported slab beam bridge particularly, with the obvious advantage at aspects such as construction, installations than other bridges, the beam slab casting quality also easily is guaranteed, and occupies absolute advantage in small bridge, and the simply supported slab beam bridge extensively is distributed in highway and the urban road.
But, also there are some intrinsic shortcomings in the simply supported slab beam bridge, for convenient transportation and lifting, the size of member is restricted, have the problems such as seam is many, globality is poor, vehicle can produce larger wheel impacts effect when rough bridge floor travels, safety of structure and durability are brought larger impact, particularly the early damage disease easily occurs in connecting portion under impact force action.Meanwhile, recently for over ten years, the quick increase that develops the drive traffic volume of highway rapidly of economic construction, hypervelocity, overload problems become an important root of bridge defect, just the use safety of bridge construction in serious threat.
Bridge floor continuation apparatus is to improve the simply supported girder bridge driving condition and be connected laterally to connect facility, avoid stretching device is set and a kind of measure of putting forward, in the porous simply supported beam, do not need expansion gap device to be set one by one adjacent two between striding, but adopt bridge deck pavement that the bridge floor between the adjacent bridge beam is connected in one, its objective is under the prerequisite that does not change simple bridge beam stress feature as vehicle provides continuously, runway stably, thereby guarantee stationarity and the comfortableness of driving, save investment, reduce simultaneously traffic nuisance.Start from the U.S. of the thirties in 20th century without the seam bridge construction, begin the sixties to develop rapidly, now quite universal.China is since 20 century 70 years, the bridge floor continuous structure came out, and this device is widely applied.By a large amount of engineering practices, although the proof bridge floor continuation apparatus has been created advantage for the stationarity of driving, but in use also reflect many problems, the phenomenon of position concrete cracking is very general continuously, cause thus water permeating of bridge floor, affect the concrete durability of bent cap, the driving planarization of bridge is damaged simultaneously.In recent years, the application life of bridge floor continuous structure has significantly been shortened in the growth of the traffic volume, the engineering that the bridge floor continuous structure is repaired is more and more, and the water enchroachment (invasion) evil phenomenon of the bent cap of freely-supported bridge, platform cap becomes a kind of very general disease form, as shown in Figure 1 and Figure 2.Further investigation reveals that, all there are this class disease in the bent cap of Zhejiang Province's 70% above bridge, platform cap, and that's about the size of it for other province situations.Therefore, for the characteristics of this disease, the bridge floor continuous structure of simply supported girder bridge is improved, it is very necessary researching and developing novel bridge floor continuous structure.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of bridge floor continuation apparatus that is applied on the beam bridge, can alleviate the continuous position of bridge floor concrete cracking disease.
For this reason, the utility model is by the following technical solutions: described bridge floor continuation apparatus comprises domes, the both sides of described domes are provided with the installed surface that is connected for the bridge floor beam body, and the top broad ways of described domes keeps at a certain distance away and is provided with the rib of I-beam shape.
When adopting technique scheme, further technical scheme below the utility model also can adopt or make up and adopt:
Described domes adopt steel plate as device materials.
Described installed surface is provided with bolt hole, and described bolt hole is mounting hole
Owing to adopting the technical solution of the utility model, the utility model proposes the construction measure of I-shaped rib formula arch bridge floor continuation apparatus, the bridge floor continuation apparatus that provides adopts steel plate materials at the continuous position of bridge floor, and it is processed as domes, keeping at a certain distance away on the arch increases the rib of I-beam shape, thereby can realize delaying and alleviating the purpose of the continuous position of bridge floor concrete cracking.Bridge floor continuation apparatus of the present utility model is applied to be easy to implement on the beam bridge, and quality easily guarantees.Can change the present situation that Current Highway bridge floor continuous structure rapid wear difficulty is repaiied, improve the durability of bridge floor continuous structure, guarantee the travel safety of bridge, increase the road-ability of road bridge, solve owing to bridge pier, the bent cap water enchroachment (invasion) evil problem of being not good at causing processed at the continuous position of bridge floor, thus the application life of Effective Raise highway bridge.
Description of drawings
Fig. 1 is traditional bridge floor continuation apparatus sketch.
Fig. 2 is that traditional bridge floor continuation apparatus is applied in the schematic diagram on the bridge construction.
Fig. 3 is the elevation of I-shaped rib formula arch bridge floor continuation apparatus provided by the utility model.
Fig. 4 is the sectional drawing of I-shaped rib formula arch bridge floor continuation apparatus provided by the utility model.
Fig. 5 is the overall structure figure of I-shaped rib formula arch bridge floor continuation apparatus provided by the utility model.
Fig. 6 is the limited element calculation model figure of I-shaped rib formula arch bridge floor continuation apparatus provided by the utility model.
The specific embodiment
With reference to accompanying drawing.
The utility model is introduced the continuous position of bridge floor with the arch structure in the bridge construction form, disperses the stressed concentration phenomenon of this position concrete.Bridge floor continuation apparatus of the present utility model comprises domes 1, the both sides of described domes 1 are provided with the installed surface 11 that is connected for the bridge floor beam body, consider that the continuous position of bridge floor bears concentrated action of pulling stress and local Vehicle Load, adopt the steel plate of 9mm thickness as device materials.Installed surface 11 is provided with bolt hole 3.The rib 2 that the top broad ways of described domes 1 keeps at a certain distance away and is provided with I-beam shape, one side can improve the supporting capacity of device, the tensile stress that can better disperse concrete to bear on the other hand.
The method for arranging of bridge floor continuation apparatus of the present utility model may further comprise the steps:
1), described bridge floor continuation apparatus is placed on the concrete beam body 5 of both sides, the continuous position of bridge floor, need the concrete beam body 5 of both sides, continuous position to be connected to integral body by bolt 4 and bridge floor the described installed surface 11 of bridge floor continuation apparatus, lay double-deck asphaltic felt between the installed surface of domes and the concrete beam body contact site; For the dilatation longitudinally of restraint beam body 5 not, bolt hole 3 is made waist-shaped hole, can carry out the adjusting of small distance in case of necessity.
2), build deck paving of concrete 10, be in the concrete at the continuous position of bridge floor in the deck paving of concrete and be connected jointly stressed by longitudinal reinforcement with deck paving of concrete outside the two ends, the continuous position of bridge floor;
In the present embodiment, above-mentioned reinforcing bar connects in the following ways: the bridge floor continuation apparatus top arranges longitudinal reinforcement net 7, the scope of described longitudinal reinforcement net 7 surpasses following connecting portion, and the longitudinal reinforcement in the deck paving of concrete outside described longitudinal reinforcement net 7 and the two ends, the continuous position of bridge floor is connected.
3), until deck paving of concrete build finish after, the connecting portion that is in the concrete at the continuous position of bridge floor and the deck paving of concrete outside the two ends, the continuous position of bridge floor in deck paving of concrete is built and is done joint-cutting 6, and the continuous position of described bridge floor is the zone between the left and right sides joint-cutting 6.
The utility model changes the continuous form of traditional bridge floor, utilizes the loading characteristic of domes, the concrete force dispersion that bridge floor is continuous, successful.It is following that analysis further specifies technique effect of the present utility model according to simulation calculation:
(1) sets up respectively traditional bridge floor continuation apparatus and both limit element artificial module of I-shaped rib formula arch bridge floor continuation apparatus.
(2) simulation realistic bridges girder construction, by applying live load and temperature action, relatively both result of calculations are proved effectiveness of the present utility model.
The continuous position of bridge floor stress mainly causes by two class reasons, and a class is that beam body deformability (flexible, downwarp) causes this position distortion (flexible, corner) and produces, and a class is that load directly acts on this position generation.The continuous position of the bridge floor of simply supported beam is stressed to mainly contain following several situation:
1) contraction or the elongation that cause under bulk temperature changes of simply supported beam, this state will cause that draw at the continuous position of bridge floor, compressive stress.This effect is operating mode 1.
2) the continuous position of bridge floor that causes of automobile braking force draw, compressive stress.This effect is called operating mode 2.
3) lane load is abound with the adjacent two downwarp corner effects that cause when striding, and the corner distortion will make continuous position produce the flexural stress of upper limb tension lower edge pressurized.This effect is called operating mode 3.
4) the active positive temperature difference of gradient temperature will cause and scratch the corner effect on the beam-ends, this corner distortion so that continuously the position produce positive bending moment and cause upper limb pressurized, lower edge tension; Anti-altitude temperature difference effect just in time in contrast.This effect is called operating mode 4.
5) wheel load acts on the local pressure effect that the continuous place of bridge floor causes, this effect makes continuous position local compression, produces similar curvature effect owing to the bridge floor continuous structure is thinner.This effect is called operating mode 5.
Several in above-mentioned 5 kinds of operating modes may occur simultaneously in particular moment, considered the concrete in tension cracking, made up according to the worst situation of upper limb tension.For bridge floor continuous structure upper limb tension stress σ
Sl, " the whole cooling of operating mode 1()+the anti-temperature difference of operating mode 2+ operating mode 3+ operating mode 4() " combination is the most unfavorable, that is:
σ
Sl=σ
w+ σ
z+ σ
q+ σ
tFormula 1
This effect is called the operating mode combination.
In order to verify the effectiveness of the utility model device, take traditional bridge floor continuous structure as comparison other, with distortion and the stress characteristics of analysis of finite element method structure under the various forms load action, the contrast construction measure is on continuously stressed impact of bridge floor.
Large-scale general finite element program ABAQUS 6.9 is adopted in computational analysis, except meticulous simulation geometrical model, distribution, the material behavior of reinforcing bar is also strictly carried out analogue simulation by design condition.
Bridge floor continuous concrete principal tensile stress summary sheet (unit: MPa) under the different operating modes of table 1
The main body of the utility model device is domes, so that under beam-ends corner metamorphosis, the bridge floor continuously compatibility of deformation scope at place increases, and then the corner of unit length reduces, thereby so that stress significantly reduce.The reducing of stress helps to improve the continuously cracking situation at place of bridge floor, and the corner of unit length reduces (being that radius of curvature increases) so that the time of reflection crack appears in asphalt concrete layer greatly delays, and reflection crack even do not occur.
Claims (3)
1. bridge floor continuation apparatus that is applied on the beam bridge, it is characterized in that: described bridge floor continuation apparatus comprises domes, the both sides of described domes are provided with the installed surface that is connected for the bridge floor beam body, and the top broad ways of described domes keeps at a certain distance away and is provided with the rib of I-beam shape.
2. a kind of bridge floor continuation apparatus that is applied on the beam bridge as claimed in claim 1 is characterized in that: described domes adopt steel plate as device materials.
3. a kind of bridge floor continuation apparatus that is applied on the beam bridge as claimed in claim 1, it is characterized in that: described installed surface is provided with bolt hole, and described bolt hole is mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238339 CN202830754U (en) | 2012-05-25 | 2012-05-25 | Continuous deck device used for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238339 CN202830754U (en) | 2012-05-25 | 2012-05-25 | Continuous deck device used for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202830754U true CN202830754U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220238339 Withdrawn - After Issue CN202830754U (en) | 2012-05-25 | 2012-05-25 | Continuous deck device used for bridge |
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| CN (1) | CN202830754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704393A (en) * | 2012-05-25 | 2012-10-03 | 浙江大学 | Bridge deck continuous device applied to beam bridge and bridge deck continuous method |
| CN105133488A (en) * | 2015-10-01 | 2015-12-09 | 黄佳民 | Road bridge deformation joint seaming system |
| CN111519537A (en) * | 2020-04-17 | 2020-08-11 | 安徽省交通规划设计研究总院股份有限公司 | Bridge deck longitudinal quick connecting structure between bridge spans of beam bridge and construction method of bridge deck longitudinal quick connecting structure |
-
2012
- 2012-05-25 CN CN 201220238339 patent/CN202830754U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704393A (en) * | 2012-05-25 | 2012-10-03 | 浙江大学 | Bridge deck continuous device applied to beam bridge and bridge deck continuous method |
| CN102704393B (en) * | 2012-05-25 | 2014-11-26 | 浙江大学 | Bridge deck continuous device applied to beam bridge and bridge deck continuous method |
| CN105133488A (en) * | 2015-10-01 | 2015-12-09 | 黄佳民 | Road bridge deformation joint seaming system |
| CN111519537A (en) * | 2020-04-17 | 2020-08-11 | 安徽省交通规划设计研究总院股份有限公司 | Bridge deck longitudinal quick connecting structure between bridge spans of beam bridge and construction method of bridge deck longitudinal quick connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20141126 |
|
| RGAV | Abandon patent right to avoid regrant |