CN205676775U - Non-fragment orbit rigidity adjuster - Google Patents

Abstract

This utility model is a kind of non-fragment orbit rigidity adjuster, the abutment including bridge pier, being located on roadbed, the beam body being located on bridge pier, the track plates being layed in abutment and beam body and the rail being fixed on track plates by fastener, track plates binding site between abutment with beam body disconnects or binding site between adjacent two beam body disconnects, and is provided with the beam-ends corner for regulating beam body and uplift force that vertical dislocation is subject to reduce fastener ensures train traffic safety and the miniature supporting bridge of roadability between the track plates of disconnection.Meet train load, temperature load, beam body flexure, the flexible requirement to structure itself of beam body, mainboard depth of section can be significantly reduced, convenient and flat track plates matched, increase the head room of mainboard bottom surface and beam body end face simultaneously, the headroom enough with vertical displacement offer is rotated for beam body, reduce the beam body deformation impact on track plates structure, reduce fastener uplift force, it is ensured that train traffic safety and degree of passenger comfort.

Description

Non-fragment orbit rigidity adjuster

Technical field

This utility model relates to high-speed railway bridge technical field of structures, especially, relates to a kind of for non-fragment orbit bridge Beam body system is to reduce the beam body deformation non-fragment orbit rigidity adjuster on the impact of track plates structure.

Background technology

Railway construction high speed is the inexorable trend of China railways transport development, along with China Express Railway is built progressively real Execute and put into effect, non-fragment orbit because there is the features such as relatively high ride, stability and maintenance frequency are few and by as high-speed iron One of track structure pattern that road is main.In order to meet the requirement of high-speed railway circuit regularity and stability, may build The overpass of continuous several kilometers even tens kilometers.As a example by Beijing-Shanghai express railway, 244, bridge, occupy positive line length 80.47%, train operates on bridge substantially completely.Longspan Bridge often produces relatively at beam-ends because of train load or temperature action Big beam-ends corner and vertical dislocation, cause non-fragment orbit fastener system uplift force to exceed buckle press, beam-ends local rail protuberance, shadow Ring travel safety and degree of passenger comfort.Between bridge, or between bridge and abutment, beam seam is relatively big, causes rail fastening to save Dot spacing is excessive cannot meet car operation ride comfort and the requirement of track stress deformation, increases rail, the stress of fastener, and stress surpasses Rail break and train derailing may be caused when crossing certain limit, jeopardize traffic safety.

According to clean steel or pure xoncrete structure, the problem existed is as follows:

(1) headroom enough with vertical displacement offer can not be rotated for beam body: Longspan Bridge is in train load or temperature Effect is lower produces bigger corner or vertical displacement, and clean steel or pure xoncrete structure depth of section are relatively big, and at the bottom of mainboard Face is plane, thereby results in the interaction of bridge beam body and mainboard or collides the bigger internal force of generation, reducing structural behaviour.

(2) structure feature is not met: concrete material is that one is suppressed and weak drawn material, under load action, without the tiny fragments of stone, coal, etc. The mainboard top pressurized of orbit rigidity adjusting means and bottom tension causes bottom to produce a large amount of cracks, shorten non-fragment orbit rigidity In the adjusting means life-span, increase structural repair number of times.

(3) steel construction sound pollution is serious: according to the non-fragment orbit rigidity adjuster of clean steel form, due to rigidity relatively Little, under train dynamics load action, deformation is big, and macro manifestations is that mainboard two ends produce serious noise also with beam body impact several times Aggravation beam body damage.

(4) version: according to the non-fragment orbit rigidity adjuster of pure concrete form, its corresponding mainboard thickness Greatly, version is dumb, needs template to pour, assembling reinforcement during making, and construction quality is difficult to ensure, installs inconvenience.

(5) spacing defect: if realizing horizontal and vertical spacing requirement simply by projective structure, train serpentine locomotion or Can be worn and torn under the effect of shaking the head track plates, causes the deformation of track plates to occur train to derail time serious, increases maintenance load.

(6) non-fragment orbit rigidity adjuster concrete pouring defect: track plates structure is the most flat, non-fragment orbit rigidity Adjusting means needs and track plates drop-over front and back, meets rail surface absolute altitude requirement.Concrete often can not at small space Vibration compacting, it is impossible to ensure concrete quality.

Particularly at Longspan Bridge, it is usually present relatively crossbeam seam, causes rail, fastener stress to increase.Visible, for improving Non-fragment orbit traffic safety and comfortableness.Therefore, a kind of non-fragment orbit rigidity adjuster of exploitation is the most necessary.This utility model A kind of non-fragment orbit rigidity adjuster provided can overcome drawbacks described above, meets train load, temperature load, bridge are scratched The flexible requirement to structure itself of bent, bridge, regulation beam-ends corner and vertical dislocation, reduce fastener uplift force, it is ensured that OK simultaneously Car safety and degree of passenger comfort.

Utility model content

This utility model purpose is to provide a kind of non-fragment orbit rigidity adjuster, to reduce beam body corner and vertical mistake The position impact on track plates, it is ensured that traffic safety and degree of passenger comfort.By arranging leap beam body expansion joint or crossing over bridge With the non-fragment orbit rigidity adjuster of abutment binding site, to meet fastener spacing, regulation beam body corner and vertical mistake simultaneously Position, reduces fastener uplift force.

In order to realize above-mentioned technical purpose, the technical scheme of this utility model patent is: non-fragment orbit rigidity adjuster, The abutment including bridge pier, being located on roadbed, the beam body being located on bridge pier, the track plates being layed in abutment and beam body and pass through Fastener is fixed on the rail on track plates, and track plates binding site between abutment with beam body disconnects or in adjacent two beam body Between binding site disconnect, be provided with beam-ends corner for regulating beam body and vertical dislocation between the track plates of disconnection to reduce The uplift force that fastener is subject to ensures train traffic safety and the miniature supporting bridge of roadability.When train runs on rail Time, non-fragment orbit rigidity adjuster can reduce the stress of rail and fastener, reduces the beam body deformation shadow to track plates structure Ring.It is considered as the non-fragment orbit rigidity adjuster of miniature bridge and can meet wanting of train operation ride comfort and track stress deformation Ask, fastener nodal pitch requirement can be met simultaneously, reduce fastener uplift force, it is ensured that forces acted on rail, will not in permissible range Because rail exceedes field of load causes rail break and train derailing, jeopardize traffic safety.Non-fragment orbit rigidity adjuster is beam Stable stiffness transition is provided between body or between beam body and abutment.The setting of non-fragment orbit rigidity adjuster prevents beam The rigidity sudden change produced because of gap between body and beam body or between beam body and abutment, ensure that the continuous of rigidity as a transition structure Property, effectively avoid when train passes through because Rigidity produces the danger even derailed of jumping onto the tracks.

Further, miniature supporting bridge includes the mainboard for being bearing in rail foot, is located at the mainboard bottom mainboard Bearing and for limiting the stopping means that mainboard moves in the horizontal direction along track plates vertical and horizontal.Non-fragment orbit rigidity The mainboard of adjusting means can be to use any one in following nine kinds of forms: grooved steel-concrete stiffness tuning plate, corner supporting Grooved steel-concrete stiffness tuning plate, I-shaped steel-concrete stiffness tuning plate, inner side diagonal brace are put more energy into compound I-shaped steel-concrete Stiffness tuning plate, inner side diagonal brace put more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate, П type steel-concrete rigidity adjust Joint plate, inner side diagonal brace put more energy into compound П type steel-concrete stiffness tuning plate, inverted U-shaped outsourcing steel-concrete stiffness tuning plate, four Angle supports inverted U-shaped outsourcing steel-concrete stiffness tuning plate.Although these forms have respective characteristic and an advantage, but they There is a common feature: corner supporting grooved steel-concrete stiffness tuning plate and corner support inverted U-shaped Covered with Angles-coagulation Chamber portion on the downside of soil stiffness tuning plate can be the headroom that beam body rotates and vertical displacement offer is enough, other seven kinds of forms Padded due to bearing cushion block, adds the head room of mainboard bottom surface and beam body end face, equally rotates for beam body and perpendicular Enough headroom are provided to displacement.Especially for Longspan Bridge, beam body will not be produced and rotate and the contradictory problems of mainboard collision, Non-fragment orbit rigidity adjuster can reduce the stress of rail and fastener, reduces the beam body deformation impact on track plates structure. The mainboard of multi-form is the combined member of steel and concrete.The respective material that combined member gives full play to steel and concrete is special Property, due to concrete and steel cooperation, the 20%-40% of rolled steel dosage can be saved compared with pure steel structure.By increasing The section rigidity of mainboard, due to concrete participation work, calculates cross section bigger than pure steel structure, and mainboard amount of deflection can be made to reduce 20% Left and right.Mainboard can utilize mounted steel plate formwork supporting plate, cast-in-place concrete, saves working material, and accelerate to construct into Degree.Mainboard is obviously reduced than the noise of pure steel structure under load action, it is possible to reduce sound pollution, beneficially environmental protection.Mainboard Steel construction part be factory make, it is easy to ensure quality.Concrete directly utilizes steel plate and a small amount of template pours, and reduces Reinforcing bar binding, easy to make, it is easy to control quality.Mainboard lighter in weight, reduces mainboard thickness, convenient and overall more flat Track plates structure cohesion, meets the requirement of rail surface absolute altitude, brings convenience to installation is in place simultaneously.Tension bottom mainboard District's primary structure member is steel plate, upper portion pressurized district primary structure member is concrete, has both reduced mainboard depth of section, Appropriate application material Material mechanical characteristic, gives full play to steel and the advantage of concrete each material, and version is flexible and changeable.Mainboard bottom is divided into Shaped steel or encased steel plate, it is to avoid distress in concrete exposes the structural damage caused in atmosphere, it is simple to safeguard, the safety of structure Preferable with durability.

Further, abutment top and/or pier coping portion are provided with beam body bearing；Beam body bearing and mainboard bearing are along vertically side Arrange to one_to_one corresponding.

Further, stopping means includes being located at the lateral Displacement block of mainboard corner, being located between mainboard and track plates Dissipative cell steel plate that outer layer is superimposed with dissipative cell rubber and the outer layer being located between mainboard and lateral Displacement block are superimposed with The dissipative cell steel plate of dissipative cell rubber；Or stopping means include the inserted structure between mainboard and track plates, be located at embedding Close the dissipative cell steel plate that the outer layer in structure is superimposed with dissipative cell rubber and the outer layer being located between mainboard and track plates It is superimposed with the dissipative cell steel plate of dissipative cell rubber.

Further, the plate face shape of dissipative cell rubber and dissipative cell steel plate uses square, rectangle or circle Cylindricality；Dissipative cell steel plate uses welding manner to be connected with the pre-embedded steel slab of surrounding structure, and arranges under pre-embedded steel slab that local is held Pressing reinforcing mesh；Dissipative cell steel plate thickness selects 5mm-15mm, and dissipative cell rubber thickness selects 10cm-20cm；Dissipative cell Plate size is more than dissipative cell rubber size；High performance adhesive sulfur is used between dissipative cell steel plate and dissipative cell rubber Change bonding.

Further, mainboard uses notch to arrange down and the U-steel of upper surface oversite concrete, two grooves of U-steel Wall is along mainboard longitudinally arrangement, and mainboard bearing is respectively arranged on two groove sidewall bottom of U-steel.

Further, two cell walls of U-steel offer groove the most from bottom to up, form corner supporting grooved steel-concrete firm Degree adjustable plate, rotation that the chamber portion of U-steel bottom is beam body and vertical displacement offer activity headroom.

Further, mainboard uses two groups of I-steel structure from bottom support concrete slab, the top flange plate of I-steel Upper surface installation connecting element and concrete form entirety, shared train is by load during rail.

Further, being provided with the skewed horizontal load ribbed stiffener of cross support between two I-steel, inside formation, diagonal brace is put more energy into multiple Close I-shaped steel-concrete stiffness tuning plate, to improve the anti-lateral rigidity of I-steel.

Further, mainboard uses the two groups of I-steel tops longitudinally arranged along mainboard to set up the knot of precast slab Structure, template when constructing as rear pouring concrete layer；In precast slab, preset overhanging beard reinforcing bar and bend up shearing resistance Reinforcing bar, precast slab and rear pouring concrete layer pass through beard reinforcing bar, bend up shear reinforcement and interfacial adhesion connection；Work Word steel and rear pouring concrete layer are connected by peg；The top flange plate of I-steel is protruding edge of a wing construction formwork.

Further, mainboard uses the structure of the top flange upper surface of steel plate cast-in-place concrete of П shaped steel, by П shaped steel The version of wide width wing edge thin web plate play the mechanical property of steel, improve the reliability of mainboard and service life.

Further, the skewed horizontal load ribbed stiffener of cross support is set inside П shaped steel, puts more energy into multiple with diagonal brace inside being formed Close П type steel-concrete stiffness tuning plate.

Further, mainboard uses the opening down and inverted U-shaped steel of the internal fill concrete of steel plate, can effectively prevent side The cripling of portion's steel plate, steel plate, to internal fill concrete also Constrained effect, can increase the rigidity in mainboard cross section and prolong Property.

Further, along mainboard longitudinally, it is arranged to inverted U-shaped simultaneously, forms the corner inverted U-shaped outsourcing steel-concrete of supporting firm Degree adjustable plate, rotation that the chamber portion of bottom is beam body and vertical displacement offer activity headroom.

Further, the mainboard seat supports bottom mainboard is on bearing cushion block, with padded mainboard and increase mainboard bottom surface With the head room of beam body end face, make the beam-ends of beam body vertically can free displacement.

Further, mainboard uses the combinative structure of steel plate and concrete, being connected by between steel plate and concrete The upper surface uniform welding of steel plate has peg, and steel plate is fixed by the mutual drawknot of peg and concrete.

Further, mainboard uses the combinative structure of steel plate and concrete, and U-shaped reinforcement welding is on steel plate, at U-shaped reinforcing bar The distribution bar that at two jiaos of top, colligation is longitudinally laid along mainboard, is formed steel plate with rear pouring concrete and is connected entirety reliably, Shared train is by load during rail.

Further, mainboard uses the combinative structure of steel plate and concrete, and the upper surface of steel plate welds punched steel plate and welds Planting peg, each hole of punched steel plate all wears perforated rebar；Concrete Filled forms concrete pin, in perforation to perforation Perforated rebar concrete is linked together closely with steel plate, perforated rebar, perforation in concrete pin and peg common Work.

Further, non-fragment orbit rigidity adjuster includes being bearing in the mainboard of rail foot, being located at bottom mainboard Mainboard bearing and for limiting the stopping means that mainboard moves in the horizontal direction along track plates vertical and horizontal.Mainboard is by setting Put the mainboard bearing support in beam body or abutment, beam body further through beam body seat supports on bridge pier.

Further, mainboard is steel and concrete combined component.Concrete and steel are by three kinds of novel connected mode shapes Integral cooperation, increases mainboard section rigidity, not only undertakes train by load during rail, and significantly reduces Mainboard depth of section, convenient and overall more flat track plates structure cohesion, meet the requirement of rail surface absolute altitude.Mainboard cross section The reduction of height, under the track plates structure premise of same height, can increase the head room of mainboard bottom surface and beam body end face, Can be thus the headroom that beam body rotates and vertical dislocation offer is enough of bridge beam end, beam body will not be produced and rotate and mainboard The contradictory problems of collision.

Further, horizontal along mainboard, mainboard uses notch to arrange down and the U-steel of upper surface oversite concrete, i.e. Grooved steel-concrete stiffness tuning plate.U-steel can be directly as the template of concrete cast, and cast-in-place concrete, saving is executed The material of work, and accelerating construction progress.U-steel both sides are convenient directly arranges mainboard bearing.

Further, except the grooved steel-concrete stiffness tuning plate of uiform section height can be used, it is also possible to edge simultaneously The grooved that mainboard longitudinally disposed grooving mouth down is arranged, forms the grooved steel-concrete stiffness tuning plate of corner supporting, U-steel The chamber portion of downside can be the headroom that beam body rotates and vertical displacement offer is enough.

Further, horizontal along mainboard, mainboard can also use two groups of I-steel structure from bottom support concrete slab, I.e. I-shaped steel-concrete stiffness tuning plate.The I-steel exposed is connected formation rigidity with armoured concrete slab by shear connector Adjustable plate.I-beam structure part is that factory makes, easy to make, it is easy to control quality.

Further, I-shaped steel-concrete stiffness tuning plate can arrange the skewed horizontal load of cross support inside I-steel Ribbed stiffener, inside formation, diagonal brace is put more energy into compound I-shaped steel-concrete stiffness tuning plate.It is effectively improved by skewed horizontal load ribbed stiffener The anti-lateral rigidity of I-steel, improves steel construction defect, will not substantially increase construction weight simultaneously, limits below stiffness tuning plate Headroom, enable structure to resist the serpentine locomotion because of top train, shake the head or horizontal stroke that substructure is produced by variations in temperature etc. Xiang Li.

Further, inner side diagonal brace put more energy into compound I-shaped steel-concrete stiffness tuning plate can also be on two groups of I-steel One layer of precast slab is set up on the edge of a wing, and inside formation, diagonal brace is put more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate.Its It is configured to: first precast slab is bearing in the two groups of I-steel top flanges being welded with shear connector in advance, then prefabricated A layer concrete is poured above concrete slab.As time goes on, when reaching some strength, at this moment one end is welded in cast-in-place concrete On the I-steel edge of a wing, and the shear connector in other end embedment cast-in-place concrete just starts to have bearing capacity, shows whole Body running performance.The put more energy into maximum of compound I-shaped steel-concrete stiffness tuning plate of this structure and inner side diagonal brace is not all I-shaped Steel top flange is provided with precast slab, template when constructing as rear pouring concrete layer.This structure except keep inside Diagonal brace put more energy into compound I-shaped steel-concrete stiffness tuning plate advantage outside, also have saving template, accelerate speed of application, subtract The advantage of few temporary support.Mainboard often can produce fatigue rupture in various degree under train load effect year in year out, And this structure needs quickly to repair for mainboard, it is highly beneficial for reducing Contraction in Site.

Further, horizontal along mainboard, mainboard can also use the top flange surface of steel plate cast-in-place concrete of П shaped steel Structure, i.e. П type steel-concrete stiffness tuning plate.Concrete flange plate forms constraint, the structure of wide width wing edge thin web plate to П shaped steel Form can give full play to the mechanical property of steel, cooperates with the compressive stress of top concrete, reduces the edge of a wing and web connects Connect the internal stress at place, avoid producing complex stress at mainboard transverse plate end simultaneously, improve structural reliability and service life.Along with The continuous growth of service time, mainboard load effect under High-speed Train Loads strengthens, material stress width strengthens, structure strong The safety stock of the aspects such as degree, rigidity, stability declines, and the probability that various diseases occur strengthens, hazardness aggravation, so improving The reliability of mainboard and service life seem particularly significant.Furthermore, it is possible to directly use the top flange of П shaped steel as concrete The template of cast, saves template, accelerates speed of application, minimizing temporary support, it is easy to control quality.

Further, П type steel-concrete stiffness tuning plate also can arrange oblique of cross support inside П shaped steel Support ribbed stiffener, inside formation, diagonal brace is put more energy into compound П type steel-concrete stiffness tuning plate, enables structure to resist because of top train Serpentine locomotion, shake the head or cross force that substructure is produced by variations in temperature etc..

Further, horizontal along mainboard, mainboard can also use the inverted U-shaped of the opening down and internal fill concrete of steel plate Steel, the most inverted U-shaped outsourcing steel-concrete stiffness tuning plate.Its essential structure be the girder steel using inverted U-shaped cross section as template, interior Portion's fill concrete, concrete and girder steel are collectively forming compound section by connector.The internal fill concrete of steel plate, Ke Yiyou Effect prevents the cripling of sidepiece steel plate, improves the Ultimate Bearing Capacity of steel plate；Internal fill concrete is also had about by steel plate Shu Zuoyong, can increase rigidity and the ductility in mainboard cross section.Steel plate can reduce template number and formwork as the template of concrete Operation.

Further, except the inverted U-shaped outsourcing steel-concrete stiffness tuning plate of uiform section height can be used, it is also possible to Downward opening the most inverted U-shaped along the longitudinally disposed one-tenth of mainboard, form the inverted U-shaped outsourcing steel-concrete stiffness tuning of corner supporting Plate.Chamber portion on the downside of inverted U-shaped girder steel equally provides headroom for beam body corner and vertical dislocation, it is to avoid beam body end steel Lift on rail, reduce the impact on track plates.

Further, if mainboard is rectangle in the plane, its supporting stopping means is for arrange rigidity in mainboard corner Bigger concrete side is to limited block.Lateral Displacement block is simple, easy construction, convenient making.Being arranged in mainboard corner can Effectively to realize cross spacing, it is ensured that mainboard lateral stability.If during the operation accumulated over a long period, lateral Displacement block damages Bad, it is also easy to maintenance and changes.

Further, steel plate-rubber combined dissipative cell is used between lateral Displacement block and mainboard.Dissipative cell rubber is arranged Between upper and lower two-layer dissipative cell steel plate, the plate face shape of dissipative cell rubber and dissipative cell steel plate can use square, Rectangle or cylinder.Dissipative cell steel plate thickness selects 5～15mm, and dissipative cell rubber thickness selects 10～20cm, consumption Dissipative cell rubber size can be more than by element plate size, take the circumstances into consideration to choose according to dissipative cell rubber size beyond size, it is proposed that 5 ～10cm, select high performance adhesive sulfuration bonding between dissipative cell steel plate and dissipative cell rubber, form steel plate-rubber multiple Close dissipative cell buffer structure deformation energy.Along with bullet train runs the increasing of the frequency, stopping means is by the most up to a hundred The impact of ten thousand, steel plate-rubber combined dissipative cell can play anti-fatigue performance with buffer structure deformation energy.Even if in long-term fortune Need after battalion to change, it may have be readily disassembled, feature simple and convenient, lower-cost.

Further, the upper steel plate of steel plate-rubber combined dissipative cell uses welding manner and lateral Displacement block pre-buried steel Plate connects；Lower steel plate uses welding manner to be connected with mainboard side pre-embedded steel slab equally, and should arrange under pre-embedded steel slab that local is held Pressing reinforcing mesh.

Further, the cross spacing of mainboard arranges lateral Displacement block according to mainboard corner, should be simultaneously before and after mainboard And steel plate-rubber combined dissipative cell is set between neighbouring track plates, it is achieved longitudinal spacing.

Further, if mainboard is " several " character form structure in the plane, its supporting stopping means is that mainboard head and the tail are symmetrical Being arranged to " several " character form structure, adjacent track plates is symmetrical arranged into "U" shaped structure, is formed for wedge the most between the two Shape structure, constrains one another, and reaches the purpose vertically and horizontally retrained.

Further, between " several " character form structure and the "U" shaped structure of the most neighbouring track plates of mainboard, steel is set Plate-rubber combined dissipative cell.

Further, the steel plate in mainboard and concrete connected mode use U-shaped reinforcement welding on steel plate, and at U At two jiaos of steel bar top, colligation connects along the most elongated distribution bar, the most U-shaped hybrid reinforcement.U-shaped hybrid reinforcement connects logical Cross U-shaped reinforcing bar and distribution bar and steel plate is formed with rear pouring concrete load works such as being connected the most overall, shared train With.U-shaped hybrid reinforcement connected mode advantage is to effectively increase the contact area with concrete, and construction is simply protected simultaneously The reliability that card connects.Along mainboard cross section, horizontal U-shaped bar spacing is at 100-250mm, and distribution bar should be the most complete disconnected along mainboard Face is arranged.

Further, the steel plate in mainboard can also use with concrete connected mode and weld punched steel plate on steel plate top And weld plant peg, each hole of punched steel plate arranges perforated rebar, i.e. punched steel plate-peg-perforated rebar composite joint.Mixed During solidifying soil cast, the concrete filling hole forms concrete pin, and the perforated rebar in hole is tight with connector by concrete slab Close links together, the concrete pin in perforated rebar and hole and peg cooperation, it is possible to one opposing of common generation Power prevents the separation of steel plate and concrete, the shear resistance of significant increase connector and anti-fatigue performance.Along with national economy and The fast development of transportation, bullet train runs the frequency and will strengthen, as a example by Beijing-Shanghai express railway, starts train at present average daily 290 row, more than 100,000 Fatigue Load to mainboard, connect for 1 year so the technical scheme that this utility model provides solves The anti-fatigue performance of fitting, has bigger meaning.

Further, the steel plate in mainboard and concrete connected mode can also use directly to weld on steel plate top and plant bolt Nail, i.e. peg connect.Peg is connected on steel plate by welding manner, the shearing between opposing steel plate and concrete, retrains coagulation Soil and the mutual sliding of level of steel plate, and prevent the effect that starts between steel plate and concrete, shared shearing and pulling force, and tool There is the shear-force redistribution of preferable deformability, beneficially mainboard.Material isotropic, makes the peg can be simply along whole mainboard Length or piecewise uniform distribution are arranged, it is simple to the simplification design of peg and constructing operation, it is adaptable to industrialized production.Peg Diameter selects 10-25mm, and peg length-to-diameter is advised between 3-4.

Further, mainboard may select freely supported structure system, and mainboard bearing arranges permission and moves along track plates vertical equity, But can not transverse shifting.

Further, the minimum deadweight of mainboard should ensure that under the influence of the factors such as beam body beam-ends corner, vertical dislocation not Lift in generation, height and track plates matched.

Further, mainboard bearing centrage should design on same vertical plane with beam body bearing centrage.

Further, the concrete parts of mainboard all uses a kind of novel self-compaction from flowing concrete.With CRTS I type rail As a example by guidance tape, straight bridge tunnel location track plates height is only 657mm.In the most flat track plates, to arrange mainboard, to meet On the premise of rail surface absolute altitude, with track plates drop-over front and back, the concrete in mainboard certainly will be poured into a mould and propose harshness Requirement.The novel self-compaction of one that the utility model proposes breaches tradition vibrated concrete at molding mode from flowing concrete On limitation, fully rely on self gravitation (or only needing external force slight vibration) and just can freely trickle, pass through reinforcing bar gap fill mould Plate every nook and cranny, is met the intensity of requirement and good endurance quality after hardening.The technical scheme that this utility model provides Can break through concrete can not the technical bottleneck of vibration compacting, it is provided that a kind of being suitable for pours into a mould at the small space of mainboard and can guarantee that The concrete of quality.

Further, novel self-compaction from the raw material of flowing concrete is: (a) cement: use common 42.5 silicate Cement；(b) flyash: I grade of flyash；C () sand: fluvial sand, medium sand, modulus of fineness 2.58, II district's grating is qualified, bulk density 1576kg/m³, apparent density 2610kg/m³；(d) stone: rubble, 5 20mm continuous gradings are qualified, and elongated particles is 9.2%, Crush index 3.4, bulk density 1470kg/m³, apparent density 2700kg/m³；E () water reducer: high efficiency water reducing agent, water-reducing rate is big In 25%.

Further, novel self-compaction, after flowing concrete mixing completes, should carry out slump consistancy test, L-type flowing Instrument test, the test of U-shaped instrument, V funnel testing.

Further, slump consistancy test, the test of L-type Flow Meter, the test of U-shaped instrument, V funnel testing should meet following standard: The slump should control at 240mm～270mm；Slump flow test should control at 600mm～700mm；U-shaped instrument test height difference △ h Should be less than 30mm；V funnel should be controlled at 4s～25s by the time.

Further, novel self-compaction is from flowing concrete half an hour before casting, with water abundant moistening steel plate.

Further, novel self-compaction from flowing concrete before casting, should spread fine sand on steel plate.Fine sand can and connect Fitting forms composite joint effect, improves the cooperation ability between steel plate and concrete, reduces mainboard cross section further high Degree, it is provided that beam body rotates and vertical displacement headroom and meet the absolute altitude requirement of rail surface.

Further, the modulus of fineness of fine sand is 1.6～2.2；Clay content is not more than 3.0%.

This utility model has following advantages and an Advantageous Effects:

(1) this utility model is to provide a kind of non-fragment orbit rigidity adjuster, be arranged between beam body and beam body or Transition location between person's beam body and abutment, is considered as crossing over the miniature bridge at beam body expansion joint, supported above at beam body expansion joint Rail.Non-fragment orbit rigidity adjuster include being bearing in rail foot mainboard, be located at the mainboard bearing bottom mainboard and For limiting the stopping means that mainboard moves in the horizontal direction along track plates vertical and horizontal.

This utility model can be widely used in ballastless track bridge, reduces location, beam body expansion joint beam-ends track plates Stress.This non-fragment orbit rigidity adjuster is easy for installation, gives full play to structural material stress performance, and regulation performance is good Good.

The utility model is described in further detail below in conjunction with the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is one of structural representation of non-fragment orbit rigidity adjuster of this utility model embodiment；

Fig. 2 is the two of the structural representation of the non-fragment orbit rigidity adjuster of this utility model embodiment；

Fig. 3 is the three of the structural representation of the non-fragment orbit rigidity adjuster of this utility model embodiment；

Fig. 4 is the four of the structural representation of the non-fragment orbit rigidity adjuster of this utility model embodiment；

Fig. 5 is the five of the structural representation of the non-fragment orbit rigidity adjuster of this utility model embodiment；

Fig. 6 is the structural representation of the steel plate-rubber combined dissipative cell of this utility model embodiment；

Fig. 7 is one of structural representation of grooved steel-concrete stiffness tuning plate of this utility model embodiment；

Fig. 8 is the peg connecting structure schematic diagram of this utility model embodiment；

Fig. 9 is that the inner side diagonal brace of this utility model embodiment is put more energy into the structure of compound I-shaped steel-concrete stiffness tuning plate Schematic diagram；

Figure 10 is that the inner side diagonal brace of this utility model embodiment is put more energy into the structure of compound П type steel-concrete stiffness tuning plate Schematic diagram；

Figure 11 is the structural representation of the inverted U-shaped outsourcing steel-concrete stiffness tuning plate of this utility model embodiment；

Figure 12 is that the inner side diagonal brace of this utility model embodiment is put more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate Structural representation；

Figure 13 is the two of the structural representation of the grooved steel-concrete stiffness tuning plate of this utility model embodiment；

Figure 14 is the structural representation of the U-shaped hybrid reinforcement connecting structure of this utility model embodiment；

Figure 15 is the plan view from above of Fig. 5；

Figure 16 is the structural representation of the punched steel plate-peg-perforated rebar composite joint structure of this utility model embodiment Figure；

Figure 17 is the structural representation of the non-fragment orbit rigidity adjuster at the beam body expansion joint of this utility model embodiment Figure；

Figure 18 is the plan view from above of Figure 17.

Marginal data:

1-mainboard；2-rail；3-fastener；4-track plates；5-beam body；6-mainboard bearing；7-beam body bearing；8-bridge pier；9- Peg；10-steel plate；11-dissipative cell steel plate；12-dissipative cell rubber；13-I-steel；14-skewed horizontal load ribbed stiffener；15- Lateral Displacement block；16-U steel bar；17-perforated rebar；18-punched steel plate；19-abutment；20-precast slab；21-beard Reinforcing bar；22-bends up shear reinforcement；23-edge of a wing construction formwork；24-distribution bar；25-bearing cushion block.

Detailed description of the invention

Below this utility model technology contents is further illustrated, but not limit to this utility model flesh and blood System.

Fig. 1 is one of structural representation of non-fragment orbit rigidity adjuster of this utility model embodiment；Fig. 2 is this reality With the structural representation of the non-fragment orbit rigidity adjuster of new embodiment two；Fig. 3 is the nothing of this utility model embodiment The three of the structural representation of tiny fragments of stone, coal, etc. orbit rigidity adjusting means；Fig. 4 is the non-fragment orbit stiffness tuning dress of this utility model embodiment The four of the structural representation put；Fig. 5 be the non-fragment orbit rigidity adjuster of this utility model embodiment structural representation it Five；Fig. 6 is the structural representation of the steel plate-rubber combined dissipative cell of this utility model embodiment；Fig. 7 is that this utility model is real One of structural representation of grooved steel-concrete stiffness tuning plate executing example；Fig. 8 is that the peg of this utility model embodiment connects Organigram；Fig. 9 is that the inner side diagonal brace of this utility model embodiment is put more energy into the knot of compound I-shaped steel-concrete stiffness tuning plate Structure schematic diagram；Figure 10 is that the inner side diagonal brace of this utility model embodiment is put more energy into the knot of compound П type steel-concrete stiffness tuning plate Structure schematic diagram；Figure 11 is the structural representation of the inverted U-shaped outsourcing steel-concrete stiffness tuning plate of this utility model embodiment；Figure 12 structural representations putting more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate for the inner side diagonal brace of this utility model embodiment Figure；Figure 13 is the two of the structural representation of the grooved steel-concrete stiffness tuning plate of this utility model embodiment；Figure 14 is this reality Structural representation with the U-shaped hybrid reinforcement connecting structure of new embodiment；Figure 15 is the plan view from above of Fig. 5；Figure 16 is this The structural representation of the punched steel plate-peg of utility model embodiment-perforated rebar composite joint structure；Figure 17 is that this practicality is new The structural representation of the non-fragment orbit rigidity adjuster at the beam body expansion joint of type embodiment；Figure 18 is the top plan view of Figure 17 Figure.

As depicted in figs. 1 and 2, the non-fragment orbit rigidity adjuster of the present embodiment, combine for crossing over beam body 5 and abutment 19 The miniature bridge at position.Track plates 4 is layed on beam body 5 or abutment 19, and beam body 5 is supported on abutment 19 by beam body bearing 7 On, original continuous print track plates 4 disconnects in beam body 5 and abutment 19 binding site.Non-fragment orbit rigidity adjuster includes mainboard 1, it is located at the mainboard bearing 6 bottom mainboard 1 and moves along track plates 4 vertical and horizontal in the horizontal direction for limiting mainboard 1 Dynamic stopping means, is arranged on the disconnection position of track plates 4.Mainboard 1 is by the mainboard bearing 6 being arranged on beam body 5 and abutment 19 Supporting, beam body 5 is supported on abutment 19 further through beam body bearing 7.When above train is by beam body 5, beam body 5 can rotate Or vertical displacement.Along mainboard 1 laterally, when mainboard 1 cross section uses downward opening U-steel or inverted U-shaped steel, along main Plate 1 is longitudinally arranged to downward opening grooved or inverted U-shaped simultaneously, forms corner supporting grooved steel-concrete stiffness tuning plate Inverted U-shaped outsourcing steel-concrete stiffness tuning plate is supported with corner.The setting of mainboard 1 underside cavity part can make the beam-ends of beam body 5 Free to rotate and vertical free displacement, reduces the beam-ends corner of beam body 5 and the impact on track plates 4 that vertically misplaces, it is ensured that OK Car safety and degree of passenger comfort.Non-fragment orbit rigidity adjuster regulates action principle to beam body vertical displacement, such as Fig. 1 institute Showing, mainboard 1 uses: it is firm that corner supporting grooved steel-concrete stiffness tuning plate or corner support inverted U-shaped outsourcing steel-concrete Degree adjustable plate.Non-fragment orbit rigidity adjuster regulates action principle to beam body corner, as in figure 2 it is shown, mainboard 2 uses: corner Supporting grooved steel-concrete stiffness tuning plate or corner support inverted U-shaped outsourcing steel-concrete stiffness tuning plate.

As shown in Figure 3 and Figure 4, the non-fragment orbit rigidity adjuster of the present embodiment, because mainboard 1 uses combinative structure, Reduce mainboard 1 depth of section, under track plates 4 premise of same height, can be high along mainboard 1 longitudinally disposed one-tenth uiform section Degree, then uses the padded mainboard of bearing cushion block 25 1, increases the head room of mainboard 1 bottom surface and beam body 5 end face, make the beam of beam body 5 Hold free displacement free to rotate and vertical.Mainboard 1 crosses over beam body 5 and abutment 19 binding site, and mainboard 1 is by mainboard bearing 6 Being supported on bearing cushion block 25, bearing cushion block 25 is individually positioned on beam body 5 and abutment 19, and beam body 5 is further through beam body bearing 7 Support is on abutment 19.Non-fragment orbit rigidity adjuster regulates action principle to beam body vertical displacement, as shown in Figure 3.Rail without the tiny fragments of stone, coal, etc. Road rigidity adjuster regulates action principle to beam body corner, as shown in Figure 4.

As it is shown in figure 5, the non-fragment orbit rigidity adjuster of the present embodiment includes being supported on the mainboard 1 bottom rail 2, sets Mainboard bearing 6 bottom mainboard 1 and for limiting what mainboard 1 moved along track plates 4 vertical and horizontal in the horizontal direction Stopping means.Mainboard 1 is supported by the mainboard bearing 6 being arranged in beam body 5, and beam body 5 is supported on bridge pier 8 further through beam body bearing 7 On.Rail 2 is fixed on continuous print track plates 4 by fastener 3, and track plates 4 is layed in beam body 5, and beam body 5 is by beam body bearing 7 are bearing on bridge pier 8, and original continuous print track plates 4 disconnects at beam body 5 expansion joint.It is provided with without the tiny fragments of stone, coal, etc. between the track plates 4 disconnected Orbit rigidity adjusting means, for crossing over the miniature bridge at beam body 5 expansion joint, at beam body 5 expansion joint rail supported above 2.Fig. 5 institute The non-fragment orbit rigidity adjuster shown be plane be rectangle, mainboard be corner support grooved steel-concrete stiffness tuning plate Signal.The setting of mainboard 1 underside cavity part can make the beam-ends free displacement free to rotate and vertical of beam body 5, it is to avoid beam Lift on the beam-ends rail 2 of body 5, reduce fastener 3 uplift force, it is ensured that travel safety and degree of passenger comfort.At beam body expansion joint Non-fragment orbit rigidity adjuster, as it is shown in figure 5, plane is rectangle structure.

In the present embodiment, mainboard 1 plane can use rectangle, as shown in figure 15.Can also " several " in mainboard 1 plane Character form structure, as shown in figure 18.

As shown in Fig. 5 and Figure 15, wherein Figure 15 is the plan view from above of Fig. 5.In the present embodiment, if in mainboard 1 plane being Rectangle, as shown in figure 15, its stopping means for arranging that lateral Displacement block 15 realizes cross spacing mainboard 1 four jiaos, mainboard 1 with Steel plate-rubber combined dissipative cell is set between neighbouring track plates 4, it is achieved longitudinal spacing.

As shown in Figure 17 and Figure 18, wherein Figure 18 is the plan view from above of Figure 17.In the present embodiment, if in mainboard 1 plane For " several " character form structure, as shown in figure 18, the track plates 4 that its stopping means is adjacent is symmetrical arranged into "U" shaped structure, So mainboard 1 and track plates 4 is formed for wedge structure between the two, constrains one another, reaches the purpose vertically and horizontally retrained.

As shown in Figure 6, steel plate-rubber combined dissipative cell must be set between mainboard 1 and track plates 4.Steel plate-rubber combined Dissipative cell is made up of upper and lower two-layer dissipative cell steel plate 11 and dissipative cell rubber 12.

As shown in figs. 9 and 12, in the present embodiment, along mainboard 1 laterally, mainboard 1 arranges friendship between two groups of I-steel 13 The skewed horizontal load ribbed stiffener 14 that fork supports, inside formation, diagonal brace is put more energy into compound I-shaped steel-concrete stiffness tuning plate, such as Fig. 9 institute Show.Mainboard 1 can also set up precast slab 20 in I-steel 13 top flange, then with precast slab 20 as template, A cast-in-place layer concrete plate, inside formation, diagonal brace is put more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate, such as Figure 12 institute Show.

As shown in Figure 10, in the present embodiment, along mainboard 1 laterally, mainboard 1 can use on the top flange steel plate 10 of П shaped steel Arranging skewed horizontal load ribbed stiffener 14 inside surface cast-in-place concrete, and П shaped steel, inside formation, diagonal brace is put more energy into compound П shaped steel-mixed Solidifying soil stiffness tuning plate.

As shown in figure 11, in the present embodiment, along mainboard 1 laterally, mainboard 1 can use opening down and steel plate 10 is internal fills out Fill the inverted U-shaped outsourcing steel-concrete stiffness tuning plate of concrete.

As shown in figs. 7 and 13, in the present embodiment, mainboard 1 can use notch to arrange down and upper surface covers coagulation The grooved steel-concrete stiffness tuning plate of soil.If steel plate 10 and concrete use peg to connect, as shown in Figure 7；If steel plate 10 He Concrete uses U-shaped hybrid reinforcement to connect, as shown in figure 13.

As shown in Fig. 8, Figure 14 and Figure 16, in the present embodiment, the connected mode of steel plate 10 and concrete uses peg to connect, U-shaped hybrid reinforcement connects, punched steel plate-peg-perforated rebar composite joint.Fig. 8 is that peg connects；Figure 14 is that U-shaped mixing is joined Muscle connects；Figure 16 is punched steel plate-peg-perforated rebar composite joint.

During enforcement, it is provided that a kind of non-fragment orbit rigidity adjuster, including mainboard 1, rail 2, fastener 3, track plates 4, beam Body 5, mainboard bearing 6, beam body bearing 7, bridge pier 8, peg 9, steel plate 10, dissipative cell steel plate 11, dissipative cell rubber 12, I-shaped Steel 13, skewed horizontal load ribbed stiffener 14, lateral Displacement block 15, U-shaped reinforcing bar 16, perforated rebar 17, punched steel plate 18, abutment 19, pre- Concrete slab 20 processed, beard reinforcing bar 21, bend up shear reinforcement 22, edge of a wing construction formwork 23, distribution bar 24；Bearing cushion block 25.

As it is shown in figure 1, when beam body 5 occurs vertical displacement, the mainboard 1 crossing over beam body 5 and abutment 19 binding site can make The beam-ends of beam body 5 is at vertical free displacement, and reduces the vertical displacement of beam body 5 to being layed in above beam body 5 and abutment 19 The impact of track plates 4.

As in figure 2 it is shown, when beam body 5 occurs corner, the mainboard 1 crossing over beam body 5 and abutment 19 binding site can make beam body 5 Beam-ends freely rotatable, and the freely rotatable track plates 4 to being layed in above beam body 5 and abutment 19 of beam-ends reducing beam body 5 Impact.

As it is shown on figure 3, when mainboard 1 cross section is along height such as the longitudinally disposed one-tenth of mainboard 1, mainboard 1 is supported by mainboard bearing 6 On bearing cushion block 25, bearing cushion block 25 is individually positioned on beam body 5 and abutment 19.Bearing cushion block 25 is padded mainboard 1, increase The head room of mainboard 1 bottom surface and beam body 5 end face, make beam body 5 vertically can free displacement, and reduce the vertical position of beam body 5 Move the impact on the track plates 4 being layed in above beam body 5 and abutment 19.

As shown in Figure 4, when mainboard 1 cross section is along height such as the longitudinally disposed one-tenth of mainboard 1, mainboard 1 is supported by mainboard bearing 6 On bearing cushion block 25, bearing cushion block 25 is individually positioned on beam body 5 and abutment 19.Due to the reduction of mainboard 1 depth of section, adopt With the padded mainboard of bearing cushion block 25 1, the beam-ends making beam body 5 is free to rotate.The beam-ends this arrangement reducing beam body 5 freely turns The dynamic impact on the track plates 4 being layed in above beam body 5 and abutment 19.

As it is shown in figure 5, non-fragment orbit rigidity adjuster includes being supported on the mainboard 1 bottom rail 2, is located at mainboard 1 end The mainboard bearing 6 in portion and for limiting the stopping means that mainboard 1 moves in the horizontal direction along track plates 4 vertical and horizontal. Fig. 5 show the non-fragment orbit rigidity adjuster arranged at beam body 5 expansion joint, and it is micro-that mainboard 1 is considered as being supported in beam body 5 Type bridge, at beam body 5 expansion joint rail supported above 2, beam body 5 is supported on bridge pier 8 further through beam body bearing 7.

As shown in Figure 6, steel plate-rubber combined dissipative cell is by upper and lower two-layer dissipative cell steel plate 11 and dissipative cell rubber 12 are formed by stacking, and form compound dissipative cell buffer structure deformation energy.It is first that dissipative cell rubber 12 is arranged on the power consumption of upper and lower two-layer Between part steel plate 11, the shape of dissipative cell rubber 12 and dissipative cell steel plate 11 can use square, rectangle or cylinder Shape.Dissipative cell steel plate 11 thickness selects 5～15mm, and dissipative cell rubber 12 thickness selects 10～20cm, dissipative cell steel plate 11 sizes be more than dissipative cell rubber 12 size, take the circumstances into consideration to choose according to dissipative cell rubber 12 size beyond size, it is proposed that 5～ 10cm, selects high performance adhesive sulfuration bonding between dissipative cell steel plate 11 and dissipative cell rubber 12.Steel plate-rubber combined Dissipative cell has effectively buffered the horizontal and vertical effect between mainboard 1 and stopping means, will not produce track plates 4 simultaneously Impulsive force, improves mainboard 1 and the Years Of Service of track plates 4.

As it is shown in fig. 7, mainboard 1 uses notch to arrange down and the U-steel of upper surface oversite concrete, and U-steel Both sides are convenient directly arranges mainboard bearing 6.Peg is used to be connected between U-steel with concrete.Grooved steel-concrete rigidity is adjusted Joint plate can make concrete parts thickness reduce, and can be effectively prevented from the aquation of plate inner concrete pouring into a mould concrete when Heat is excessive cannot be discharged, and prevents concrete cracking, reduces structure initial damage, improves service life.

As shown in Figure 8, peg 9 is uniformly distributed on steel plate 10 by welding manner.Peg 9 diameter selects 10-25mm, bolt Follow closely 9 length-to-diameters to advise between 3-4.Peg 9 spacing along the longitudinal direction is no less than 6 times of peg 9 bar footpath, and not Should be greater than 400mm, laterally not less than 4 times of peg 9 bar footpath, and not should be greater than 400mm, peg 9 center to steel plate 10 side away from From no less than 35mm.The making of peg 9 is without large-scale rolling equipment and less on steel bar arrangement impact in concrete slab, executes Work is convenient, and reliability is high.Peg connects the contact area increased with concrete parts, and the screw thread on peg 9 increases with mixed simultaneously The frictional force of solidifying soil and mechanical snap power.Under load action, the interface of steel plate 10 and concrete has good transmission should Power mechanism, forms cooperative entirety.

As it is shown in figure 9, arrange the skewed horizontal load ribbed stiffener 14 of cross support inside I-steel 13, it is effectively improved I-steel The anti-lateral rigidity of 13, simultaneously will not substantially increase mainboard 1 weight, make mainboard 1 can resist the serpentine locomotion because of top train, The cross force that mainboard 1 is produced by shake the head or variations in temperature etc..

As shown in Figure 10, arranging the skewed horizontal load ribbed stiffener 14 of cross support inside П shaped steel, inside formation, diagonal brace adds Strength is combined П type steel-concrete stiffness tuning plate.The top flange steel plate 10 that can directly use П shaped steel is poured into a mould as concrete Template, accelerate speed of application；The version of wide width wing edge thin web plate can give full play to the mechanical property of steel simultaneously, improves Mainboard 1 reliability and service life.

As shown in figure 11, using the opening down and inverted U-shaped steel of the internal fill concrete of steel plate 10, steel plate 10 passes through peg 9 are collectively forming compound section with concrete.The internal fill concrete of steel plate 10, can effectively prevent the local of sidepiece steel plate 10 from bending Song, improves the Ultimate Bearing Capacity of steel plate 10；Avoid distress in concrete to expose the structural damage caused in atmosphere, knot simultaneously Safety and the durability of structure are preferable.Steel plate 10, to internal fill concrete also Constrained effect, can increase mainboard 1 cross section Rigidity and ductility.Steel plate 10 can reduce template number and a die process as the template of concrete, and concreting thickness be relatively Little, it is to avoid the cracking of the concrete that the internal excessive heat of hydration causes, lift structure performance, save cost of manufacture, improve and produce Efficiency.

As shown in figure 12, inner side diagonal brace puts more energy into compound I-shaped steel-concrete folding plate stiffness tuning plate mainly by I-steel 13, skewed horizontal load ribbed stiffener 14, precast slab 20 and rear pouring concrete layer composition.Precast slab 20 is erected on I-shaped On steel 13, template when constructing as rear pouring concrete layer, and form the common stress of superimposed sheet with rear pouring concrete layer.Described Precast slab 20 in preset overhanging beard reinforcing bar 21 and bend up shear reinforcement 22.Precast slab 20 and after water mixed Solidifying soil layer by beard reinforcing bar 21, bend up shear reinforcement 22 and its interfacial adhesion completes to connect；Steel plate 10 and after water coagulation Soil layer completes to connect by peg 9.Setting up precast slab 20 in I-steel 13 top flange, this structure has saving mould Plate, quickening speed of application, the advantage of minimizing temporary support.Needing quickly to repair for mainboard 1, reducing Contraction in Site is ten Divide favourable.

As shown in figure 13, it is that U-shaped hybrid reinforcement is connected with the connector being distinguished as using of Fig. 7, and Fig. 7 uses peg even Connect.

As shown in figure 14, U-shaped reinforcing bar 16 is connected with steel plate 10 by welding, exists along horizontal U-shaped reinforcing bar 16 spacing of mainboard 1 100-250mm, at U-shaped reinforcing bar 16 top two ends colligation distribution bar 24, distribution bar 24 should be along the longitudinal tunneling boring cloth of mainboard 1 Put.U-shaped reinforcing bar 16 3 contacts with concrete, increases contact area further, simultaneously above the distribution bar 24 of colligation permissible Concrete parts stress being more preferably transferred to lower steel plate 10, plays its mechanical property, site operation is simple, efficiently, protects simultaneously The reliability that card connects.

As shown in figure 15, if mainboard 1 is rectangle in the plane, its supporting stopping means includes being located at track plates 4 four The lateral Displacement block 15 at angle, the steel plate-rubber combined dissipative cell being located between mainboard 1 and neighbouring track plates 4 and be located at Steel plate between mainboard 1 and lateral Displacement block 15-rubber combined dissipative cell.Corner is evenly arranged, by additional lateral Displacement Block 15 realizes limit function so that track plates 4 version is consistent, it is provided that fabrication and installation efficiency.In addition, this corner is equal The stopping means of even layout is easy to the maintenance after structure is on active service and replacing, need not dismantle original track plates 4 and rail 2, shorten dimension Repair the time, be greatly improved structural life-time, meet the trend of current civil engineering structure modular development.

As shown in figure 16, steel plate 10 welding punched steel plate 18 and peg 9 is planted in weldering, each hole of punched steel plate 18 is arranged Perforated rebar 17.During concrete cast, the concrete filling hole forms concrete pin, and the perforated rebar 17 in hole is by coagulation Soil plate links together closely with connector, the concrete pin in perforated rebar 17 and hole and peg 9 cooperation, it is possible to Common one resistance of generation prevents the separation of steel plate 10 and concrete, the shear resistance of significant increase connector and fatigue resistance Energy.

As shown in figure 17, mainboard 1 can be considered as being bearing in the miniature bridge of beam body 5, at beam body 5 expansion joint steel supported above Rail 2, and beam body 5 is bearing on bridge pier 8 by beam body bearing 7.Difference with Fig. 5 is in mainboard 1 plane to tie to " several " font Structure, its corresponding stopping means is the most different.

As shown in figure 18, if mainboard 1 is " several " font in the plane, the rail that mainboard 1 " several " character form structure is neighbouring with head and the tail Guidance tape 4 "U" shaped structure dislocation wedge-shaped arrangement, produces horizontal and vertical joint face with track plates 4, it is ensured that mainboard 1 is two-way steadily Property, thus realize spacing requirement.

The dissipative cell steel plate 11 being further characterized in that steel plate-rubber combined dissipative cell of the present utility model uses welding side Formula is connected with stopping means pre-embedded steel slab, and should arrange partial pressing's bar-mat reinforcement under pre-embedded steel slab.

Of the present utility model being further characterized in that mainboard 1 may select freely supported structure system, mainboard bearing 6 arranges permission along track Plate 4 vertical equity moves, but can not transverse shifting.

The minimum deadweight being further characterized in that mainboard 1 of the present utility model should ensure that at the beam-ends corner of beam body 5, vertically mistake Lift on not occurring under the influence of the factors such as position, height and track plates 4 matched.

Of the present utility model it is further characterized in that mainboard 1 bearing centrage should be with the design of beam body 5 bearing centrage same perpendicular Face directly.

The concrete being further characterized in that in mainboard 1 of the present utility model uses novel self-compaction from flowing concrete.

Of the present utility model it is further characterized in that novel self-compaction from the raw material of flowing concrete is: (a) cement: use general Logical 42.5 portland cements；(b) flyash: I grade of flyash；C () sand: fluvial sand, medium sand, modulus of fineness 2.58, II district's level coordinates Lattice, bulk density 1576kg/m³, apparent density 2610kg/m³；D () stone: rubble, 5 20mm continuous gradings are qualified, and faller gill shape contains Amount is 9.2%, crush index 3.4, bulk density 1470kg/m³, apparent density 2700kg/m³；(e) water reducer: efficiently diminishing Agent, water-reducing rate is more than 25%.

Of the present utility model it is further characterized in that novel self-compaction after concrete mixing completes, should carry out the slump from flowing Test, the test of L-type Flow Meter, the test of U-shaped instrument, V funnel testing.

Of the present utility model be further characterized in that slump consistancy test, L-type Flow Meter test, U-shaped instrument test, V funnel testing should Meet following standard: the slump should control at 240mm～270mm；Slump flow test should control at 600mm～700mm；U-shaped instrument Test height difference △ h should be less than 30mm；V funnel should be controlled at 4s～25s by the time.

Of the present utility model be further characterized in that novel self-compaction from flowing concrete half an hour before casting, abundant with water Moistening steel plate 10.

Of the present utility model it is further characterized in that novel self-compaction from flowing concrete before casting, should spread on steel plate 10 Fine sand.

The modulus of fineness being further characterized in that fine sand of the present utility model is 1.6～2.2；Clay content is not more than 3.0%.

A kind of non-fragment orbit rigidity adjuster that this utility model provides can meet train load, temperature load, beam Body flexure, the flexible requirement to structure itself of beam body, regulation beam body corner and vertical dislocation, reduce fastener uplift force, protect simultaneously Card travel safety and degree of passenger comfort.

During enforcement, it is provided that a kind of non-fragment orbit rigidity adjuster, including the mainboard for being bearing in rail foot, it is located at Mainboard bearing bottom mainboard and for limiting the spacing dress that mainboard moves in the horizontal direction along track plates vertical and horizontal Put.Mainboard, by the mainboard bearing support being arranged on beam body expansion joint both sides beam body or abutment, props up above beam body expansion joint Hold rail；Stopping means realizes horizontal and vertical spacing requirement, is provided with steel plate-rubber combined dissipative cell between itself and mainboard, Buffer structure deformation energy.Mainboard uses combination plate, and steel plate and novel self-compaction are provided with U-shaped mixing between flowing concrete and join Muscle connection, punched steel plate-peg-perforated rebar composite joint or peg connect, and improve cooperation and anti-fatigue performance.This The non-fragment orbit rigidity adjuster of utility model not only meets train load, temperature load, beam body bends, beam body is stretched to knot The requirement of structure itself, it is also possible to significantly reduce mainboard depth of section, convenient and flat track plates matched, increase master simultaneously Plate bottom surface and the head room of beam body end face, rotate the headroom enough with vertical displacement offer for beam body, reduce beam body deformation right The impact of track plates structure, reduces fastener uplift force, it is ensured that train traffic safety and degree of passenger comfort.

The foregoing is only preferred embodiment of the present utility model, not thereby limit protection domain of the present utility model, Every equivalent structure transformation utilizing this utility model description to be made, or directly or indirectly it is used in other relevant skills Art field, is the most in like manner included in scope of patent protection of the present utility model.

Claims (18)

1. a non-fragment orbit rigidity adjuster, the abutment (19) including bridge pier (8), being located on roadbed, is located on bridge pier (8) Beam body (5), the track plates (4) being layed in abutment (19) and beam body (5) and be fixed on track plates (4) by fastener (3) On rail (2), it is characterised in that the track plates (4) binding site between abutment (19) with beam body (5) disconnects or in phase Binding site between adjacent two beam body (5) disconnects, and is provided with and turns for the beam-ends regulating beam body (5) between the track plates (4) of disconnection The uplift force that angle and vertical dislocation are subject to reduce fastener (3) ensures train traffic safety and the miniature support bridge of roadability Beam.

Non-fragment orbit rigidity adjuster the most according to claim 1, it is characterised in that miniature supporting bridge include for It is bearing in the mainboard (1) of rail (2) bottom, is located at the mainboard bearing (6) of mainboard (1) bottom and is used for limiting mainboard (1) and exists The stopping means moved along track plates (4) vertical and horizontal in horizontal direction.

Non-fragment orbit rigidity adjuster the most according to claim 2, it is characterised in that abutment (19) top and/or bridge Pier (8) top is provided with beam body bearing (7)；Beam body bearing (7) is arranged with mainboard bearing (6) vertically one_to_one corresponding.

Non-fragment orbit rigidity adjuster the most according to claim 3, it is characterised in that stopping means includes being located at mainboard (1) the lateral Displacement block (15) of corner, the outer layer be located between mainboard (1) and track plates (4) are superimposed with dissipative cell rubber (12) dissipative cell steel plate (11) and the outer layer being located between mainboard (1) and lateral Displacement block (15) are superimposed with dissipative cell The dissipative cell steel plate (11) of rubber (12)；Or stopping means include the inserted structure between mainboard (1) and track plates (4), The outer layer being located in inserted structure is superimposed with the dissipative cell steel plate (11) of dissipative cell rubber (12) and is located at mainboard (1) And the outer layer between track plates (4) is superimposed with the dissipative cell steel plate (11) of dissipative cell rubber (12).

Non-fragment orbit rigidity adjuster the most according to claim 4, it is characterised in that dissipative cell rubber (12) and consumption The plate face shape of energy element steel plate (11) uses square, rectangle or cylinder；Dissipative cell steel plate (11) uses welding Mode is connected with the pre-embedded steel slab of surrounding structure, and arranges partial pressing's bar-mat reinforcement under pre-embedded steel slab；Dissipative cell steel plate (11) Thickness selects 5mm-15mm, and dissipative cell rubber (12) thickness selects 10cm-20cm；Dissipative cell steel plate (11) size is more than consumption Can element rubber (12) size；High performance adhesive sulfuration is used between dissipative cell steel plate (11) and dissipative cell rubber (12) Bonding.

6. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) is adopted Arranging down with notch and the U-steel of upper surface oversite concrete, two cell walls of U-steel are along mainboard (1) longitudinally arrangement, mainboard Bearing (6) is respectively arranged on two groove sidewall bottom of U-steel.

Non-fragment orbit rigidity adjuster the most according to claim 6, it is characterised in that two cell walls of U-steel all under The supreme groove that offers, forms corner supporting grooved steel-concrete stiffness tuning plate, and the chamber portion of U-steel bottom is beam body (5) rotation and vertical displacement offer activity headroom.

8. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) is adopted With two groups of I-steel (13) from the structure of bottom support concrete slab, the upper surface of the top flange plate of I-steel (13) is installed and is connected Part and concrete form entirety, and shared train is by load during rail (2).

Non-fragment orbit rigidity adjuster the most according to claim 8, it is characterised in that two I-steel set between (13) Having the skewed horizontal load ribbed stiffener (14) of cross support, inside formation, diagonal brace is put more energy into compound I-steel (13)-concrete stiffness tuning Plate, to improve the anti-lateral rigidity of I-steel (13).

Non-fragment orbit rigidity adjuster the most according to claim 9, it is characterised in that mainboard (1) uses along mainboard (1) structure of precast slab (20) is set up on two groups of I-steel (13) tops of longitudinally arrangement, executes as rear pouring concrete layer The template in man-hour；In precast slab (20), preset overhanging beard reinforcing bar (21) and bend up shear reinforcement (22), prefabricated Concrete slab (20) and rear pouring concrete layer pass through beard reinforcing bar (21), bend up shear reinforcement (22) and interfacial adhesion company Connect；I-steel (13) and rear pouring concrete layer are connected by peg (9)；The top flange plate of I-steel (13) is protruding the edge of a wing Construction formwork (23).

11. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) Use the structure of top flange steel plate (10) the upper surface cast-in-place concrete of П shaped steel, by the knot of the wide width wing edge thin web plate of П shaped steel Configuration formula plays the mechanical property of steel, improves reliability and the service life of mainboard (1).

12. non-fragment orbit rigidity adjusters according to claim 11, it is characterised in that inside П shaped steel, intersection is set The skewed horizontal load ribbed stiffener (14) supported, puts more energy into compound П type steel-concrete stiffness tuning plate with diagonal brace inside being formed.

13. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) Use the opening down and inverted U-shaped steel of the internal fill concrete of steel plate (10), can effectively prevent the local of sidepiece steel plate (10) Flexing, steel plate (10), to internal fill concrete also Constrained effect, can increase rigidity and the ductility in mainboard (1) cross section.

14. non-fragment orbit rigidity adjusters according to claim 13, it is characterised in that along mainboard (1) longitudinally, with Time be arranged to inverted U-shaped, formed corner support inverted U-shaped outsourcing steel-concrete stiffness tuning plate, the chamber portion of bottom is beam body (5) rotation and vertical displacement offer activity headroom.

15. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) The mainboard bearing (6) of bottom is supported on bearing cushion block (25), with padded mainboard (1) and increase mainboard (1) bottom surface and beam body (5) The head room of end face, makes the beam-ends of beam body (5) vertically can free displacement.

16. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) Use steel plate (10) and the combinative structure of concrete, between steel plate (10) and concrete, be connected by the upper table at steel plate (10) Face uniform welding has peg (9), and steel plate (10) is fixed by peg (9) drawknot mutual with concrete.

17. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) Using the combinative structure of steel plate (10) and concrete, U-shaped reinforcing bar (16) is welded on steel plate (10), on U-shaped reinforcing bar (16) top The distribution bar (24) that at two jiaos, colligation is longitudinally laid along mainboard (1), is formed steel plate (10) with rear pouring concrete and is connected reliably Entirety, shared train by rail (2) time load.

18. according to the non-fragment orbit rigidity adjuster according to any one of claim 2 to 5, it is characterised in that mainboard (1) Using the combinative structure of steel plate (10) and concrete, peg (9) is planted in upper surface welding punched steel plate (18) the weldering of steel plate (10), Each hole of punched steel plate (18) all wears perforated rebar (17)；Concrete Filled forms concrete pin, perforation to perforation In perforated rebar (17) concrete is linked together closely with steel plate (10), perforated rebar (17), perforation in coagulation Soil pin and peg (9) cooperation.