CN203360997U - Bridge with rigid hinges - Google Patents
Bridge with rigid hinges Download PDFInfo
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- CN203360997U CN203360997U CN 201320389788 CN201320389788U CN203360997U CN 203360997 U CN203360997 U CN 203360997U CN 201320389788 CN201320389788 CN 201320389788 CN 201320389788 U CN201320389788 U CN 201320389788U CN 203360997 U CN203360997 U CN 203360997U
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Abstract
The utility model discloses a bridge with rigid hinges, and belongs to the field of bridges. The bridge with the rigid hinges is of a framing six-tower cable-stayed type structure and mainly comprises two main beams. The two main beams are disconnected at the midspan position of the whole bridge, then an expansion joint is formed, the main beams are divided into two parts, each main beam is a three-tower cable-stayed bridge body, and the hinges are arranged in the expansion joint to connect the two main beams. The bridge with the rigid hinges is simple in structure, low in construction difficulty, little in influence on water environment and low in cost; the technical problem that the overall height of a multi-tower cable-stayed bridge is small is solved, the problem of temperature deformation of the main beams of the bridge can be solved scientifically and reasonably, displacement of longitudinal relative lines at the two ends of each main beam is released, corners and shear displacement of the main beams are restrained, comfort of running is ensured while the stress demands are met, and the long service life and safety and reliability of using are ensured. The bridge with the rigid hinges is easy to construct, low in maintenance cost and beneficial to popularization.
Description
Technical field
The utility model relates to the bridge technology field, especially a kind of bridge that the rigidity hinge is installed.
Background technology
In China, more than the girder continuous length of bridge reaches 2680m, and be the above cable stayed bridges of framing six towers, one of its structural system Major Difficulties is that the integral rigidity of multi pylon cable stayed bridge is little.For addressing the above problem, girder adopts the structural system that vertical support is set at the vertical both sides of Sarasota spacing 46m to improve the rigidity of structure, and each Sarasota place arranges the X carriage simultaneously.Two of structural system difficult point is more than the girder total length reaches 2680m, the temperature deformation of girder is large to the stressing influence on Sarasota and basis, this impact is again because girder adopts the longitudinal double-row support system, adds less Sarasota lower king-post strut height and sectional dimension and seems more outstanding.
Adopt under such ad hoc structure system and Sarasota form, the temperature deformation that the members such as girder and suspension cable are larger will affect reasonability and the safety of structure.Long girder temperature deformation is embodied in the adverse effect of Main Bridge Channel Bridge structure: a) in the outermost tower, the king-post Root Stress is excessive, and concrete reinforcement can't meet code requirement; B) at the bottom of the tower of outermost tower, internal force is larger, makes basic scale increase.Labor shows: if girder is continuous structure, shrinkage joint is not established in centre, and the structure infeasibility, therefore must seek other solution routes.The solution that may exist has:
Option A (scheme of the utility model application): girder arranges the rigidity hinge.At full-bridge girder span centre, rigidity hinge structure is set, solution is converted to superstructure by substructure.Because the rigidity hinge has discharged the relative longitudinal strain of girder at full-bridge span centre place, make the stressed reduction (referring to documents) greatly of temperature of outside Sarasota.
Option b: in the middle of three towers one, establish transition pier.At the full-bridge span centre, a transition pier is set, girder arranges shrinkage joint, changes structure into two three pylon cable-stayed bridges by six pylon cable-stayed bridges.
Scheme C: adopt large-scale Sarasota form.The outer king-post of long girder temperature load major effect is stressed, adopts fairly large Sarasota and base form, by improving the Sarasota self-ability, directly resists the internal force that the distortion of girder temperature load causes.
In sum, according to comparing and analyzing, be similar to such bridge, adopt rigidity hinge structure, more suit the requirements, and more safe and reliable.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of simple in structure, difficulty of construction is little, little to water environmental impact, the with low cost bridge that the rigidity hinge is installed, adopt the bridge of this structure, solved the little technical problem of whole height of multi pylon cable stayed bridge, can solve scientifically and rationally bridge main beam temperature deformation problem, discharge vertical relative linear displacement at girder two ends, constraint girder corner and shear displacemant, can guarantee again the comfortableness of driving when meeting force request, guarantee long perfomance life, and use is safe and reliable.
The technical solution adopted in the utility model is as follows:
The bridge that the rigidity hinge is installed of the present utility model, this bridge adopts framing six tower oblique rollers, it mainly contains two width girders, wherein two width girders disconnect and form shrinkage joint at the span centre place of full-bridge, make girder be divided into two, every three pylon cable-stayed bridges that are arrange the rigidity hinge two girders are connected in shrinkage joint.
Owing to having adopted said structure, this bridge adopts framing six tower oblique rollers, be that whole bridge is six pylon cable-stayed bridges, and this bridge adopts two width girders, make a width girder of whole bridge can become the runway of a direction, adopt two width girders both the vehicle partition of bi-directional can be opened, wherein two width girders disconnect and form shrinkage joint at the span centre place of full-bridge, and the rigidity hinge is set in the contracting seam is connected two girders, due to the link of rigidity hinge as two girders being set, make the rigidity hinge can discharge vertical relative linear displacement at girder two ends, constraint girder corner and shear displacemant, can guarantee again the comfortableness of driving when meeting force request, it is the flexible and distortion that the rigidity hinge can cushion two girders, because the rigidity hinge has discharged the relative longitudinal strain of girder at full-bridge span centre place, make the stressed reduction greatly of temperature of outside Sarasota, can solve scientifically and rationally the little technical problem of whole height of multi pylon cable stayed bridge, solve bridge main beam temperature deformation problem, guarantee long perfomance life, and use is safe and reliable.
The bridge that the rigidity hinge is installed of the present utility model, described girder is divided into two, respectively fixed end case beam and sliding end case beam, described rigidity hinge is fixed in fixed end case beam by an end of little case beam, the other end is placed in sliding end case beam, can move freely formation along the axis direction of sliding end case beam, described shrinkage joint is apart to form between fixed end case beam and sliding end case beam.
Owing to having adopted said structure, girder is divided into two, is respectively fixed end case beam and sliding end case beam, and fixed end case beam and sliding end case beam form shrinkage joint in a distance, thereby guarantees bridge main beam temperature deformation, space that can be flexible.And the rigidity hinge, adopt an end of little case beam to be fixed in fixed end case beam, the rigidity hinge is flexible or distortion with the flexible and distortion of fixed end case beam, and the other end of little case beam is placed in sliding end case beam, when the girder temperature influence of whole bridge and while producing thermal deformation, little case beam can move freely along the axis direction (being the bridge direction) of sliding end case beam, and namely the flexible direction along fixed end case beam moves, thereby has overcome the impact that variations in temperature is brought bridge itself; Discharge vertical relative linear displacement at bridge main beam two ends, constraint girder corner and shear displacemant can be guaranteed again the comfortableness of driving a vehicle when meeting force request, guarantee long perfomance life, and use is safe and reliable simultaneously.
The bridge that the rigidity hinge is installed of the present utility model, an end of described little case beam is fixed by the diaphragm in fixed end case beam and fixed end case beam; The other end extend in sliding end case beam, and at least two group bearings are set outside little case beam, at every group of bearing overcoat, two diaphragms are arranged, forming latticed and sliding end case beam by midfeather between this diaphragm fixes, make the little case beam can be with respect to bearing and diaphragm, move freely along the axis direction of sliding end case beam.
Owing to having adopted said structure, one end of little case beam is fixed by the diaphragm in fixed end case beam and fixed end case beam, diaphragm is fixed on fixed end case beam, and can bear the gravity of little case beam, the suffered stress of little case beam can be transformed on fixed end case beam simultaneously, and the other end of little case beam is in sliding end case beam, and be outside equipped with at least two groups at little case beam bearing is arranged, for supporting the other end of its little case beam, so that the stressed supporting-point of little case beam support to be provided, every group of bearing overcoat has two diaphragms, make bearing be fixed on fixed end case beam by diaphragm, make little case beam that stress is delivered on the case beam by bearing and diaphragm, and between the diaphragm in sliding end case beam, by midfeather, form latticed, to improve the shearing rigidity of slip end carriage section, and jointly form latticed force transfer system, and fix with sliding end case beam, little case beam can move with respect to bearing and diaphragm, while making little case beam shrink, can with bearing and diaphragm relative motion, avoid bearing and diaphragm are caused to damage, guarantee that it uses normally and moves.Bearing is mainly used in supporting the weight of whole little case beam, and when little case beam moves with fixed end case beam, bearing can maintain static, and little case beam can be with respect to bearing and diaphragm, axis direction along sliding end case beam moves freely, the infringement of avoiding the movement of little case beam to cause sliding end case beam body.Whole little case beam moves with the flexible of fixed end case beam, and little case beam can relatively move in sliding end case beam, thereby discharge vertical relative linear displacement at girder two ends, constraint girder corner and shear displacemant, avoid the bridge body to receive the infringement of the phenomenon of expanding with heat and contract with cold, guarantee the traffic safety on girder simultaneously.
The bridge that the rigidity hinge is installed of the present utility model, every group of bearing comprises vertical support and lateral support, described vertical support is positioned on the outer vertical direction of little case beam, it is outer in a lateral direction that described lateral support is positioned at little case beam, vertical support and lateral support are arranged on the outer same cross section of little case beam, near one group of bearing of end palpus of little case beam, the outer place, close shrinkage joint of little case beam must one group of bearing.
Owing to having adopted said structure, vertical support is positioned on the outer vertical direction of little case beam, lateral support is positioned at little case beam in a lateral direction outward, vertical support and lateral support are arranged at the outside of little case beam, and be positioned on same cross section, make whole little case beam same cross section around be provided with bearing, vertical moment of flexure and the shearing of restraint rigidity hinge position girder, side direction moment of flexure and shearing and torsional deflection, moment of flexure by girder, reverse and shear the stressed support reaction be converted between the large case beam of little case beam and the outside, thereby guarantee stress equalization on each orientation of little case beam, while avoiding little case beam to shrink, due to unbalance stress, with sliding end case beam, rub, cause damage.Therefore make the bridge that has used this rigidity hinge, in the process of using, after avoiding the contraction or distortion of girder, be offset at shrinkage joint, and can not resile, can be fully provide path for the distortion of girder, avoid it to produce the skew of distortion and cause danger, can retrain girder corner and shear displacemant, can guarantee again the comfortableness of driving simultaneously when meeting force request, guarantee long perfomance life, and use is safe and reliable.
The bridge that rigidity hinge is installed of the present utility model, between described vertical support and little case beam, be provided with viscous damper between lateral support and little case beam.
Owing to having adopted said structure, pass through viscous damper, make between vertical support and little case beam, the effect that there is buffering between lateral support and little case beam, avoid because the bridge main beam temperature deformation, skew occurs and cause damage and make between vertical support and lateral support and little case beam, when shrink or distortion hour, viscous damper can dissolve this amount of movement, when shrinking or distortion when larger, can dissolve the part amount of movement, stress when discharging little case beam simultaneously and moving, play cushioning effect, while avoiding the vertical relative linear displacement of little case beam, damage to vertical support and lateral support, thereby guarantee the permanent of application life, thereby further guarantee the application life of bridge, reduce the maintenance maintenance cost.
The bridge that the rigidity hinge is installed of the present utility model, be provided with sealing device in described shrinkage joint, is stamped the shrinkage joint shrouding on described shrinkage joint, the packing shrinkage joint.
Owing to having adopted said structure, pass through sealing device, can will around little case beam, seal, avoid rainwater on bridge etc. to enter in shrinkage joint, make little case beam be corroded and damage, be stamped the shrinkage joint shrouding on shrinkage joint, thereby the shrinkage joint packing is got up, avoid foreign material to drop in shrinkage joint, affect the flexible of little case beam, thereby guarantee the normal use of bridge by the rigidity hinge, can guarantee the smooth and smooth-going of bridge floor simultaneously, normally travelling of vehicle on the assurance bridge floor, avoid occurring security incident.
The bridge that the rigidity hinge is installed of the present utility model, the root that the part of described little case beam in fixed end case beam is little case beam, this root extends and spreads fixing along the axis direction of fixed end case beam.
Owing to having adopted said structure, the effect of little case beam in fixed end case beam, that the bending and shearing of little case beam root is delivered on fixed end case back base plate, therefore the main stressed plate of little case beam (being roof and floor and web) is extended to fixed end case beam inside, and the axis direction along fixed end case beam extends and spreads fixing, it is corresponding with little case beam stiffening rib that inboard, little case beam extension arranges the triangle stiffener, simultaneously at the trapezoidal stiffener of roof and floor arranged outside of little case beam extension and be connected with large case back base plate, web outside arranges trapezoidal stiffener and is connected with fixed end case beam midfeather, like this, at the bottom of little case back, the stress of web can be delivered to fixed end case back base plate smoothly by stiffener and midfeather, can guarantee again the rigidity smooth transition of little case beam and fixed end case beam simultaneously.
The bridge that the rigidity hinge is installed of the present utility model, minute three zones in described fixed end case beam, respectively diffusion region, transition region and ending district, between three zones, by stiffener, separate, the root of described little case beam passes the stiffener between three zones successively, and fixes with the T-shaped stiffener in the ending district.
The bridge that the rigidity hinge is installed of the present utility model, described little case beam is in diffusion region and transition region, and stress is roof and floor and the midfeather diffusion to little case beam by stiffener, and the stress self-diffusion district on little case beam reduces gradually to transition region; Described little case beam, in the ending district, is delivered to stress the T shape stiffener of fixed end case back base plate.
Owing to having adopted said structure, diffusion region, transition region and ending district, also be three zones in A district, B district, C district in Fig. 1, wherein the A district is the stress diffusion region, this zone loading characteristic is that little case beam extension plate stress is large, its stress spreads to roof and floor and midfeather rapidly by outside stiffener, therefore stiffener is stressed also larger; The B district is the power transmission transition region, and little case beam extension, this zone plate stress reduces gradually; The C district is power transmission ending district, and the effect that stress all successfully is delivered to fixed end case back base plate is mainly played in this zone, and therefore T shape stiffener only is set.Stress shrinkage strain suffered on bridge produced by three zones, transmit and be delivered to step by step on fixed end case beam, thereby can solve scientifically and rationally bridge main beam temperature deformation problem.
The bridge that the rigidity hinge is installed of the present utility model, be provided with sealing device between described little case beam and fixed end case beam; Be provided with the cooling and insulating system in described little case beam.
Owing to having adopted said structure, little case Liang Gudingduanchu in bridge span is arranged to sealing device, make rigidity cut with scissors inner come with isolate from outer air (telescoping mechanism of carrying expansion coupling is placed in the cleaning ambient of air-conditioning system), be provided with the cooling and insulating system in the little case beam confined space of rigidity hinge, to improve the environment for use of rigidity hinge special carrier, can guarantee the safe and reliable of whole bridge on the one hand, and the comfortableness of the driving on bridge, can further improve its application life and durability on the other hand, thereby improve the life-span of bridge, avoid the generation of security incident.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1. the bridge that rigidity hinge is installed of the present utility model, simple in structure, difficulty of construction is little, little to water environmental impact, with low cost;
2. the bridge that rigidity hinge is installed of the present utility model, solved the little technical problem of whole height of multi pylon cable stayed bridge, can solve scientifically and rationally bridge main beam temperature deformation problem;
3. the bridge that rigidity hinge is installed of the present utility model, discharge vertical relative linear displacement at girder two ends, constraint girder corner and shear displacemant can be guaranteed again the comfortableness of driving a vehicle when meeting force request, guarantee long perfomance life, and use is safe and reliable.
4. the bridge that the rigidity hinge is installed of the present utility model, construct simple, and the maintenance maintenance cost is little, is beneficial to popularization.
The accompanying drawing explanation
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation that the utility model is equipped with the bridge of rigidity hinge;
Fig. 2 is the structural representation of bridge of the present utility model by the rigidity hinge;
Fig. 3 is the sectional view of B-B in Fig. 2;
Fig. 4 is the sectional view of D-D in Fig. 2;
Fig. 5 is the sectional view of E-E in Fig. 2;
Fig. 6 is the sectional view of F-F in Fig. 2.
Mark in figure: 1-fixed end case beam, 2-sliding end case beam, the little case beam of 3-, the 4-tuyere, 5-loop wheel machine front fulcrum, the 6-crossbeam, the 7-cross member dash, the inboard drag-line of 8-tool box, 9-crossbeam site joint, the 10-suspension cable, the 11-sealing device, the 12-shrinkage joint, the 13-rigid hinged support, the 14-viscous damper, 15-shrinkage joint shrouding, the little case beam splice of 16-, 17-overhauls tunnel, the 18-vertical support, the 19-lateral support, the 20-manhole, 21-weakness pipeline hole, 22-medial strand maintaining roadway, the little case beam of 23-fixing hole, 24-lateral stiffening plate, the 25-vertical stiffener, the T-shaped stiffener of 26-, the 27-side extends fixed head.
The specific embodiment
Disclosed all features in this manual, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing), unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is,, unless special narration, each feature is an example in a series of equivalences or similar characteristics.
As shown in Fig. 1 to Fig. 6, the bridge that the rigidity hinge is installed of the present utility model, this bridge adopts framing six tower oblique rollers, it mainly contains two width girders, wherein two width girders disconnect and form shrinkage joint 12 at the span centre place of full-bridge, make girder be divided into two, respectively fixed end case beam 1 and sliding end case beam 2, every three pylon cable-stayed bridges that are, at shrinkage joint, the 12 interior rigidity hinges that arrange are connected two girders, described rigidity hinge is fixed in fixed end case beam 1 by an end of little case beam 3, the other end is placed in sliding end case beam 2, can move freely formation along the axis direction of sliding end case beam 2, described shrinkage joint 12 is for apart forming between fixed end case beam 1 and sliding end case beam 2, one end of described little case beam 3 is fixing by the diaphragm in fixed end case beam 1 and fixed end case beam 1, the other end extend in sliding end case beam 2, and at the outer setting at least two group bearings of little case beam 3, this example adopts two groups of bearings, certainly can design according to the actual needs many group bearings, at every group of bearing overcoat, two diaphragms are arranged, same reason, can design a plurality of diaphragms, between this diaphragm, by midfeather, form latticed fixing with sliding end case beam 2, thereby the internal construction that guarantees fixed end case beam 2 is reliable and stable, little case beam 3 can be with respect to bearing and diaphragm in fixed end case beam 2, along the axis direction of sliding end case beam 2, moves freely.Every group of bearing comprises vertical support 18 and lateral support 19, described vertical support 18 is positioned on the outer vertical direction of little case beam 3, it is outer in a lateral direction that described lateral support 19 is positioned at little case beam 3, vertical support 18 and lateral support 19 are arranged on the outer same cross section of little case beam 3, one group of bearing of end palpus near little case beam 3, one group of bearing of close shrinkage joint 12 places' palpuses that little case beam 3 is outer, when adopting three groups of activities to organize bearing, can between above-mentioned two groups of bearings, arrange one group or organize bearing more more.Between described vertical support 18 and little case beam 3, between lateral support 19 and little case beam 3, be provided with viscous damper 14, the effect that makes between vertical support and little case beam, there is buffering between lateral support and little case beam, avoid because bridge main beam temperature deformation and vertical support and lateral support cause damage, stress when discharging little case beam simultaneously and moving, play cushioning effect, while avoiding the vertical relative linear displacement of little case beam, to the damage of vertical support and lateral support, thereby guarantee the permanent of application life.On other corresponding bridge that the application of this viscous damper 14 can be promoted, use.Be provided with sealing device 11 in shrinkage joint 12, for sealing up the rigidity hinge, thereby avoid foreign material or rainwater to enter, cause corrosion and damage, guarantee that its life-span is permanent, identical principle, sealing device 11 also can apply on association area or other bridge, other parts are sealed, avoid overlooking of environment, be stamped shrinkage joint shrouding 15 on described shrinkage joint 12, packing shrinkage joint 12, guarantee the smooth smooth-going of bridge floor, guarantee the comfortableness formed on bridge floor.The root that the part of described little case beam 3 in fixed end case beam 1 is little case beam 3, this root extends and spreads fixing along the axis direction of fixed end case beam 1, minute three zones in described fixed end case beam 1, it is respectively diffusion region, transition region and ending district, between three zones, by stiffener, separate, the root of described little case beam 3 is successively through the stiffener between three zones, and fix with the T-shaped stiffener in the ending district, described little case beam 3 is in diffusion region and transition region, stress is roof and floor and the midfeather diffusion to little case beam 3 by stiffener, and the stress self-diffusion district on little case beam 3 reduces gradually to transition region, described little case beam 3, in the ending district, is delivered to stress the T shape stiffener of fixed end case back base plate.Stress shrinkage strain suffered on bridge produced by three zones, transmit and be delivered to step by step on fixed end case beam, thereby can solve scientifically and rationally bridge main beam temperature deformation problem.Be provided with sealing device between described little case beam 3 and fixed end case beam 1; Be provided with the cooling and insulating system in described little case beam 3.Come with isolate from outer air in rigidity hinge inside (telescoping mechanism of carrying expansion coupling is placed in the cleaning ambient of air-conditioning system), be provided with the cooling and insulating system in the little case beam confined space of rigidity hinge, to improve the environment for use of rigidity hinge special carrier, further improve its application life and durability, thereby guarantee the safe and reliable and application life that whole bridge is used, and reduce its maintenance cost.
The bridge that the rigidity hinge is installed of the present utility model, be partly that J1, J2, three beam segment types of J3 class are prefabricated by the span centre of bridge, and each beam Duan Jun comprises left and right two width case beams and a box-shaped beam.J1 class class beam section comprises the structures such as little case beam fixed end box-shaped beam; J2 class beam section comprises the structures such as little case beam, the large case beam of overcoat, box-shaped beam; Little case beam maintenance district is positioned at J3 class beam section.Single width beam section two coxostermums of J1 and J3 class beam section also are provided with suspension cable anchor case, and J2 class beam section is as the closed beam section between Z5 and Z6 tower.
The bridge that the rigidity hinge is installed of the present utility model, single width J2 class beam intersegmental part is provided with two little case beams of lateral symmetry, and little case beam one end is fixed on the large case beam of J1 class beam section fixed end diaphragm by high-strength bolt, and the other end is freely.Little case beam section configuration is nearly octagon, and roof and floor and web thickness are equipped with board-like stiffening rib.Between little case beam two ends stress point place surrounding and large case beam, six bearings are set, wherein roof and floor is each two, each of side direction.
The little case beam of J1 class beam section fixed end is distributed to large case back base plate gradually by little case beam internal force, the fixed end structural division is A district, B district, zone, three, C district, be respectively diffusion region, transition region and ending district, also be three zones in A district, B district, C district in Fig. 1, wherein the A district is the stress diffusion region, this zone loading characteristic is that little case beam extension plate stress is large, and its stress spreads to roof and floor and midfeather rapidly by outside stiffener, therefore stiffener is stressed also larger; The B district is the power transmission transition region, and little case beam extension, this zone plate stress reduces gradually; The C district is power transmission ending district, and the effect that stress all successfully is delivered to fixed end case back base plate is mainly played in this zone, and therefore T shape stiffener only is set,
The joint that J2 class beam section rigidity is cut with scissors between little case beam and J1 class beam section fixed end is positioned at little case beam inside, J1 class beam section diaphragm both sides, and the scab that little case beam and fixed end joint are respectively equipped with, high-strength bolt is fixed.For the ease of the installation of joint high-strength bolt, diaphragm and the fixing flat oval shape of distolateral scab boiling water bolt hole, little case beam side scab is opened vertical oval hole, can adapt to the assembled error of direction across bridge and respectively vertical ± 5mm.At the scab manhole, stressed four jiaos of less places respectively arrange the shop bolt of.
Rigidity hinge J2, the large case beam of J3 class beam section diaphragm in the middle of little case beam support position perforate so that the space of case beam longitudinal extension to be provided.J2 class beam section diaphragm is provided with bearing link structure, so that the stressed supporting-point of little case beam support to be provided.The lateral support link is fixed on the diaphragm plate by high-strength bolt, the lateral support link adopts the oval hole with the plate bolt hole that is connected of diaphragm, length adjustment device is installed simultaneously and between midfeather, can realize the lateral support clearance adjustment function, the design regulating power means that for-10mm-20mm(negative value gap reduces, on the occasion of meaning that gap increases).The clearance adjustment function of roof and floor vertical support is mainly realized by bearing self, in order to adapt to the assembled error of little case beam and large case beam, the height of the reserved 10mm of roof and floor support position diaphragm is regulated steel plate, diaphragm is provided with suspension ring above the lateral support link, with installation and the later stage replacing that facilitates lateral support.
Be provided with damper in little case beam bottom between the rigidity hinge J2 class little case beam of beam section and large case beam, damper one end is fixed on little case beam base plate, and an end is fixed on diaphragm, and single little case beam is provided with two cover dampers, and full-bridge is totally 8 covers.
J2, the large case beam of J3 class beam section are provided with midfeather, respectively establish together single width case beam Gong She tetra-road midfeathers in little case beam both sides.Consider J2, the larger loading characteristic of J3 class beam section shearing, midfeather is continuous, and diaphragm is interrupted by midfeather.Midfeather is provided with cat ladder and working platform, to facilitate installation and the maintenance to rigid hinged support.
Little case beam bottom is provided with guide rail, and J2, J3 class beam section base plate are provided with roller, and roller has the lift adjustment function.In normal operation stage, allow little case beam fixed end joint high-strength bolt is removed, roller is risen with track at the bottom of little case beam beam and is adjacent to, then little case beam is drawn and to J3 class beam section zone, rigidity is cut with scissors to each position and thoroughly keep in repair along guide rail, after maintenance again by little case beam along guide rail pushed home and little case beam fixed end bolt.
J2 class beam section arranges the shrinkage joint shrouding on tuyere surrounding and case beam base plate, and the working platform of the outside maintenance of rigidity hinge is provided, and guarantees the streamlined of rigidity hinge place bridge outpiled surface simultaneously, improves the wind resistance of structure.
Cut with scissors the contact between two width beams for strengthening rigidity, between J1, J2, J3 class beam section two width beams, respectively establish box-shaped beam one, the crossbeam top board is provided with manhole (establishing watertight door closure and cat ladder), and base plate is provided with spilled water hole.Coxostermum place in the case beam, J2 class beam section box-shaped beam end is provided with manhole, and manhole arranges cat ladder.Facilitate the maintainer to walk between two width rigidity hinges.
The bridge that the rigidity hinge is installed of the present utility model, simple in structure, difficulty of construction is little, little to water environmental impact, with low cost; Solve the little technical problem of whole height of multi pylon cable stayed bridge, can solve scientifically and rationally bridge main beam temperature deformation problem; Discharge vertical relative linear displacement at girder two ends, constraint girder corner and shear displacemant can be guaranteed again the comfortableness of driving a vehicle when meeting force request, guarantee long perfomance life, and use is safe and reliable.Construction is simple, and the maintenance maintenance cost is little, is beneficial to popularization.
The utility model is not limited to the aforesaid specific embodiment.The utility model expands to any new feature or any new combination disclosed in this manual, and the arbitrary new method disclosed or step or any new combination of process.
Claims (10)
1. one kind is equipped with the bridge that rigidity is cut with scissors, it is characterized in that: this bridge adopts framing six tower oblique rollers, it mainly contains two width girders, wherein two width girders disconnect and form shrinkage joint (12) at the span centre place of full-bridge, make girder be divided into two, every three pylon cable-stayed bridges that are arrange the rigidity hinge two girders are connected in shrinkage joint (12).
2. the bridge that rigidity hinge is installed as claimed in claim 1, it is characterized in that: described girder is divided into two, respectively fixed end case beam (1) and sliding end case beam (2), described rigidity hinge is fixed in fixed end case beam (1) by an end of little case beam (3), the other end is placed in sliding end case beam (2), can move freely formation along the axis direction of sliding end case beam (2), described shrinkage joint (12) are for apart forming between fixed end case beam (1) and sliding end case beam (2).
3. the bridge that rigidity hinge is installed as claimed in claim 2, it is characterized in that: an end of described little case beam (3) is fixed by the diaphragm in fixed end case beam (1) and fixed end case beam (1); The other end extend in sliding end case beam (2), and at least two group bearings are set outside little case beam (3), at every group of bearing overcoat, two diaphragms are arranged, between this diaphragm, by midfeather, form latticed fixing with sliding end case beam (2), make the little case beam (3) can be with respect to bearing and diaphragm, move freely along the axis direction of sliding end case beam (2).
4. the bridge that rigidity hinge is installed as claimed in claim 3, it is characterized in that: every group of bearing comprises vertical support (18) and lateral support (19), described vertical support (18) is positioned on the outer vertical direction of little case beam (3), it is outer in a lateral direction that described lateral support (19) is positioned at little case beam (3), vertical support (18) and lateral support (19) are arranged on the outer same cross section of little case beam (3), near one group of bearing of end palpus of little case beam (3), the outer close shrinkage joint (12) of little case beam (3) is located must one group of bearing.
5. the bridge that rigidity hinge is installed as claimed in claim 4 is characterized in that: between described vertical support (18) and little case beam (3), between lateral support (19) and little case beam (3), be provided with viscous damper (14).
6. the bridge that the rigidity hinge is installed as described as any one in claim 1 to 5, is characterized in that: be provided with sealing device (11) in described shrinkage joint (12), be stamped shrinkage joint shrouding (15) on described shrinkage joint (12), packing shrinkage joint (12).
7. the bridge that rigidity hinge is installed as described as any one in claim 2 to 5, it is characterized in that: the root that the part of described little case beam (3) in fixed end case beam (1) is little case beam (3), this root extends and spreads fixing along the axis direction of fixed end case beam (1).
8. the bridge that rigidity hinge is installed as claimed in claim 7, it is characterized in that: minute three zones in described fixed end case beam (1), respectively diffusion region, transition region and ending district, between three zones, by stiffener, separate, the root of described little case beam (3) passes the stiffener between three zones successively, and fixes with the T-shaped stiffener in the ending district.
9. the bridge that rigidity hinge is installed as claimed in claim 8, it is characterized in that: described little case beam (3) is in diffusion region and transition region, stress is roof and floor and the midfeather diffusion to little case beam (3) by stiffener, and the stress self-diffusion district on little case beam (3) reduces gradually to transition region; Described little case beam (3), in the ending district, is delivered to stress the T shape stiffener of fixed end case back base plate.
10. the bridge of rigidity hinge is installed as any one in claim 2 to 5 or 8 or 9 is described, it is characterized in that: between described little case beam (3) and fixed end case beam (1), be provided with sealing device; Be provided with the cooling and insulating system in described little case beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320389788 CN203360997U (en) | 2013-07-02 | 2013-07-02 | Bridge with rigid hinges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320389788 CN203360997U (en) | 2013-07-02 | 2013-07-02 | Bridge with rigid hinges |
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| Publication Number | Publication Date |
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| CN203360997U true CN203360997U (en) | 2013-12-25 |
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| CN 201320389788 Expired - Fee Related CN203360997U (en) | 2013-07-02 | 2013-07-02 | Bridge with rigid hinges |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388302A (en) * | 2013-07-02 | 2013-11-13 | 中交公路规划设计院有限公司 | Bridge provided with rigid hinges |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
-
2013
- 2013-07-02 CN CN 201320389788 patent/CN203360997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388302A (en) * | 2013-07-02 | 2013-11-13 | 中交公路规划设计院有限公司 | Bridge provided with rigid hinges |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
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