CN113832849A - Bridge structure of continuous rigid frame steel truss combination - Google Patents
Bridge structure of continuous rigid frame steel truss combination Download PDFInfo
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- CN113832849A CN113832849A CN202111014213.6A CN202111014213A CN113832849A CN 113832849 A CN113832849 A CN 113832849A CN 202111014213 A CN202111014213 A CN 202111014213A CN 113832849 A CN113832849 A CN 113832849A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
- E01D6/02—Truss-type bridges of bowstring type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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Abstract
The application provides a bridge structure combined by continuous rigid frame steel trusses, which comprises a continuous rigid frame beam and a steel truss; continuous rigid frame roof beam includes concatenation decking unit, cross-compression subassembly, indulges and presses the unit, concatenation decking unit includes rigid frame festival roof beam, stop collar and connecting rod, the spread groove has all been seted up at the both ends of rigid frame festival roof beam, is no less than six rigid frame festival roof beams and sets up side by side and form the decking, is no less than three decking longitudinal arrangement and forms the bridge frame, is equipped with the connecting rod between the relative rigid frame festival roof beam of tip, the fixed stop collar that has cup jointed in middle part of connecting rod, the both ends of connecting rod respectively with the spread groove joint of rigid frame festival beam tip. The bridge is built in a splicing mode, the spliced bridge structure can meet the requirements of rigidity and strength, the application range is wide, different span requirements can be met, the bridge is convenient to build, the design and construction cost can be effectively reduced, the cushioning effect is good, and the safety is high.
Description
Technical Field
The application relates to the technical field of bridge frameworks, in particular to a bridge structure formed by combining continuous rigid frame steel trusses.
Background
At present, high-speed driving is guaranteed, and high requirements are needed for rigidity and strength of a bridge.
In the prior art, the application number of 201320625646.X provides a continuous rigid frame-steel truss combined bridge structure, which is provided with a continuous rigid frame beam body with at least three spans, and a steel truss is arranged in the middle span above the continuous rigid frame beam body; the steel truss consists of bridge frames, upper chords, web members and upper flat links, wherein two rows of the upper chords are longitudinally arranged in parallel, the web members are arranged between the upper chords and the continuous rigid frame girder body, the plane space between the upper chords and the box girder is divided into a plurality of triangular or N-shaped units, a plurality of upper flat links which are transversely arranged are arranged between the upper chords, and the bridge frames are transversely arranged at the end parts of the upper flat links;
although the rigidity and the strength requirement of the bridge can be met, the adaptability to the bridge requirement with different spans is low, various components are required to be prefabricated according to different spans at each time, and the structural integrity of the bridge is high, so that the end part of the bridge is easy to damage due to the fact that the end part of the bridge is easy to conduct when vibration is received, and the safety is reduced.
Disclosure of Invention
The application provides a bridge construction of continuous rigid frame steel purlin combination adopts the mode of concatenation to construct the bridge, and the bridge construction after the concatenation can satisfy rigidity and intensity demand, and application scope is wide, can satisfy different span demands, builds the convenience, can effectively reduce design construction cost, and can compensate the not enough of bridge bradyseism function, avoids whole vibrations to tip conduction reduction end installation structure's security to improve above-mentioned problem.
The invention is particularly such that: a bridge structure combined by continuous rigid frame steel trusses comprises a continuous rigid frame beam and a steel truss;
the continuous rigid frame beam comprises a spliced bridge plate unit, transverse pressing assemblies and longitudinal pressing units, wherein the spliced bridge plate unit comprises rigid frame section beams, limiting sleeves and connecting rods, connecting grooves are formed in the two ends of the rigid frame section beams, no less than six rigid frame section beams are arranged side by side to form bridge plates, no less than three bridge plates are longitudinally arranged to form a bridge frame, the connecting rods are arranged between the rigid frame section beams with opposite ends, the limiting sleeves are fixedly sleeved in the middle of the connecting rods, the two ends of the connecting rods are respectively connected with the connecting grooves at the ends of the rigid frame section beams in a clamping mode, the transverse pressing assemblies are mounted in the middle of the upper side of each bridge plate, and the longitudinal pressing units are mounted at the two ends of the bridge frame;
the steel truss comprises a fixing component, and the fixing components are respectively installed at two ends of the longitudinal pressing unit.
The bridge plates can be formed one by one through a plurality of rigid frame section beams, each bridge plate rigid frame section beam can reduce the weight of a single component in the whole bridge structure, the transportation is convenient, the number of the rigid frame section beams in the bridge plates can be increased or decreased according to the width of the bridge, the number of the bridge plates can be increased or decreased according to the span of the bridge, the main body of the bridge plate can be formed by splicing, the application range can be improved, the end parts of the rigid frame section beams can be connected through the connecting rods, the depth of the two ends of the connecting rods inserted into the connecting grooves at the end parts of the two rigid frame section beams can be ensured to be the same through the limiting sleeves, the reduction of the connecting strength caused by the fact that one end is short and the other end is long is avoided, meanwhile, the end parts of the rigid frame section beams are prevented from being damaged due to overlarge pressure, the transverse pressing component enables the plurality of parallel rigid frame section beams to be transversely connected, the strength of the bridge plates is ensured, the bridge plates which are longitudinally distributed can be connected through the longitudinal pressing unit, and the fixing component is used for fixing the end parts of the bridge frame, avoid the bridge frame to produce great deformation.
Furthermore, concatenation bridge plate unit still includes pressure-bearing assembly, joint subassembly and bradyseism subassembly, and the rigid frame festival beam-ends portion in every bridge plate is connected through pressure-bearing assembly, and the both ends upside of connecting rod is connected with the joint subassembly through the bradyseism subassembly respectively. Can make the synchronous atress of rigid frame festival roof beam in the bridge plate through the pressure-bearing subassembly, avoid the potential safety hazard that single atress caused, the joint subassembly can make rigid frame festival roof beam and connecting rod connect stably, can not break away from, and the bradyseism subassembly can make the power of opening vibrations between rigid frame festival roof beam and the connecting rod eliminated by the buffering, avoids vibrations on the bridge frame to the too much conduction of tip.
Furthermore, the pressure-bearing assembly comprises rigid frame reinforcing plates, connecting sleeves and bearing rods, the rigid frame reinforcing plates are fixed to the tops of the two ends of each rigid frame joint beam respectively, the connecting sleeves are fixed to each rigid frame reinforcing plate respectively, the bearing rods are arranged on the tops of the two ends of each bridge plate respectively, and the bearing rods penetrate through the corresponding connecting sleeves.
Can strengthen the intensity of rigid frame festival beam-ends portion through the rigid frame reinforcing plate, avoid pressure too big lead to rigid frame festival beam-ends portion to receive the extrusion force of connecting rod and split, fix the bearing rod through the adapter sleeve, can make the atress of rigid frame festival beam-ends portion balanced in the bridge plate through the bearing rod, improve bearing capacity to improve bridge construction's intensity.
Further, the bradyseism subassembly includes rectangle spout, sliding block and extension spring, the rectangle spout has been seted up respectively to the both ends upside of connecting rod, sliding connection has the sliding block in the rectangle spout respectively, the one end of extension spring is connected through solid fixed ring in the rectangle spout near one side of stop collar, extension spring's the other end is through solid fixed ring connection sliding block's side.
Further, the joint subassembly includes plasticity shell fragment, wedge fixture block and wedge draw-in groove, the one end of plasticity shell fragment is connected at one side top that extension spring was kept away from to the sliding block, the other end tilt up of plasticity shell fragment is and connect the wedge fixture block, the most advanced orientation of wedge fixture block is towards plasticity shell fragment one side, the wedge draw-in groove with the wedge fixture block joint is seted up to the upside in the spread groove of rigid frame festival beam-ends portion.
During the installation, the connecting rod is progressively in inserting the spread groove of rigid frame festival beam-ends portion, the tip of rigid frame festival beam is touch at the wedge fixture block, because the shape of wedge fixture block, make the wedge fixture block decurrent trend, push down to the plasticity shell fragment this moment, treat rigid frame festival roof beam and connecting rod and peg graft and target in place, the plasticity shell fragment upwards kick-backs this moment, the wedge fixture block card is gone into in the wedge draw-in groove, because the shape of wedge fixture block, rigid frame festival roof beam and connecting rod are difficult to break away from, there is the trend that breaks away from when rigid frame festival roof beam and connecting rod receive vibrations, the wedge fixture block passes through the plasticity shell fragment and takes the sliding block to slide in the rectangle spout, through sliding block pulling extension spring, through extension spring's tensile elastic action, the vibrations power is cut down, avoid the wedge fixture block and the wedge draw-in groove of joint to receive vibrations too big and break away from or damage.
Further, indulge and press the unit to include end bar, limiting plate, inserted bar, longitudinal compression pole, rib pole and coupling assembling, the joint has the inserted bar in the spread groove of the rigid frame festival roof beam at bridge frame both ends, the end fixing of inserted bar has the limiting plate, the top of end bar and the limiting plate bottom fixed connection of bridge frame tip, the bottom of end bar is close to one side middle part fixed connection longitudinal compression pole's of bridge frame one end, and the other end of two longitudinal compression poles passes through coupling assembling to be connected, the both ends of end bar are connected through the middle part side of rib pole and longitudinal compression pole respectively. The connecting groove at the end part of the rigid frame beam can be blocked by the matching of the inserted bar and the limiting plate, so that the end bar can be connected with the end part of the rigid frame beam, the connecting strength of the longitudinal compression bar and the end bar can be higher by the rib bar, and the two longitudinal compression bars are connected by the connecting assembly, so that the two ends of the bridge frame are mutually connected, and the concave deformation of the stressed middle part of the bridge frame is avoided.
Further, coupling assembling includes connecting plate, through-hole, connecting bolt and nut, and the one end that two longitudinal compression poles are close is fixed with the connecting plate respectively, and two connecting plates set up relatively, and it has the nut to inlay on one of them connecting plate, sets up the through-hole that corresponds the nut on two connecting plates, the interlude is equipped with connecting bolt in the through-hole, connecting bolt's end and the nut threaded connection who corresponds. The two connecting plates are close to each other through the connection of the connecting bolts and the connecting nuts, so that the two longitudinal pressing rods are close to each other, the two ends of the bridge frame are close to each other, and the stress of the middle part is offset.
Further, coupling assembling includes buffer spring, buffer spring has cup jointed on the connecting bolt, buffer spring is located connecting bolt's hexagonal end and has offered between the connecting plate of through-hole. Can make the cushioning degree that has between two connecting plates through buffer spring, can use the buffer spring of different buffering dynamics according to the demand of cushioning degree, if do not need cushioning degree, can cancel buffer spring's use.
Further, coupling assembling includes connecting plate, hinged-support, side lever, spliced pole, compression spring, movable rod, center block and push-and-pull rod, and crisscross setting about the one end that the end bar was kept away from to two longitudinal compression poles just is equipped with the connecting plate respectively, and the inboard front and back end of one of them connecting plate is respectively through the one end of hinged-support swing joint side lever, and the middle part of two side levers is swing joint spliced pole respectively, is equipped with the compression spring that is used for the bradyseism between two spliced poles, and the one end of push-and-pull rod is connected at the inboard middle part of another connecting plate, the other end of push-and-pull rod is fixed with the center block, and the front and back side of center block is the one end of swing joint movable rod respectively, the other end of two movable rods and the tip swing joint of the side lever that corresponds.
When the bridge frame is vibrated and tends to open, the two connecting plates are close to each other, the push-pull rod pushes the central block to move towards the side rods, the end parts of the two movable rods synchronously move towards the compression springs to enable the two side rods to tilt inwards and compress the compression springs between the two side rods, the compression springs rebound after being compressed to enable the push-pull rod to push the two connecting plates to move away from each other, so that the two longitudinal compression rods compress and fix the end parts of the bridge frame, the bridge frame is prevented from being loosened due to excessive vibration or expanding outwards, and the stability and safety of the whole bridge structure are ensured,
the connecting assembly further comprises rib plates, two sides of the end portion of the push-pull rod are connected with the corresponding connecting plates through the rib plates respectively, the connecting strength of the push-pull rod and the connecting plates can be enhanced, and the influence on the connecting stability due to the small connecting area of the push-pull rod and the connecting plates is avoided.
Further, the steel truss still includes to stride and bears unit and tubercle bearing unit, the both sides of bridge frame are installed respectively and are played the span that improves the rigidity effect and bear the unit, and stride and bear the bottom that the unit passes through tubercle bearing unit connection bridge frame.
The invention has the beneficial effects that:
1. the bridge plates can be formed by a plurality of rigid frame section beams, each bridge plate rigid frame section beam can reduce the weight of a single assembly in the whole bridge structure, the transportation is convenient, the number of the rigid frame section beams in the bridge plates can be increased or decreased according to the width of the bridge, the number of the bridge plates can be increased or decreased according to the span of the bridge, and the main bodies of the bridge plates are formed by splicing, so that the application range can be enlarged;
2. the end parts of the rigid frame section beams can be connected through the connecting rod, the same depth of inserting two ends of the connecting rod into the connecting grooves at the end parts of the two rigid frame section beams can be ensured through the limiting sleeve, the reduction of the connecting strength caused by the fact that one end is short and the other end is long is avoided, meanwhile, the damage to the end parts of the rigid frame section beams caused by overlarge pressure is avoided, the transverse pressing assembly enables a plurality of parallel rigid frame section beams to be transversely connected, the strength of bridge plates is ensured, the connecting fastness of the longitudinally distributed bridge plates can be ensured through the longitudinal pressing unit, the fixing assembly is used for fixing the end parts of the bridge frame, and the bridge frame is prevented from generating large deformation;
3. the bridge is built in a splicing mode, the spliced bridge structure can meet the requirements of rigidity and strength, the application range is wide, different span requirements can be met, the bridge is convenient to build, and the design and construction cost can be effectively reduced.
4. Can compensate the not enough of bridge bradyseism function, avoid whole vibrations to the security that the tip installation structure was reduced in the tip conduction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic view of a continuous rigid frame steel truss composite bridge construction provided herein;
fig. 2 is a partially enlarged schematic view of a portion a in a bridge structure diagram 1 of a continuous rigid frame steel truss combination provided by the present application;
fig. 3 is a partially enlarged schematic view of a portion B in a structure view 1 of a bridge of the continuous rigid frame steel truss combination provided by the present application;
FIG. 4 is a schematic view of the bottom of a continuous rigid frame steel truss composite bridge structure provided herein;
fig. 5 is a partially enlarged schematic view of a point C in a bridge structure diagram 4 of the continuous rigid frame steel truss combination provided by the present application;
FIG. 6 is a schematic view of a shock absorption assembly and a clamping assembly of a continuous rigid frame steel truss combined bridge structure provided by the present application;
FIG. 7 is a schematic view of a connection assembly for a continuous rigid frame steel truss composite bridge structure provided herein;
fig. 8 is a schematic side view of a connecting assembly of a bridge structure combined by continuous rigid frame steel girders.
Icon: 1 splicing bridge plate unit, 11 rigid frame joint beam, 12 spacing sleeves, 13 connecting rods, 14 connecting grooves, 15 rigid frame reinforcing plates, 16 connecting sleeves, 17 supporting rods, 18 through grooves, 19 rectangular sliding grooves, 110 sliding blocks, 111 tension springs, 112 plastic elastic sheets, 113 wedge-shaped clamping blocks, 114 wedge-shaped clamping grooves, 2 transverse pressing components, 21 transverse plates, 22 vertical plates, 23 transverse pressing bolts, 24 side holes, 3 longitudinal pressing units, 31 end rods, 32 limiting plates, 33 insertion rods, 34 longitudinal pressing rods, 35 rib rods, 36 connecting plates, 37 through holes, 38 connecting bolts, 39 buffer springs, 310 nuts, 311 hinged supports, 312 side rods, 313 connecting rods, 314 compression springs, 315 movable rods, 316 center blocks, 317 push-pull rods, 318 ribbed plates, 4 fixing components, 41 fixing cross beams, 42 fixing rings, 43 fixing anchor rods, 5 span units, 51 arch bearing beams, 52 supporting plates, 53 mounting blocks, 54 pull rods, 6 node supporting units, 16 rectangular supporting units, 16 connecting sleeves, 17 supporting rods, 18 longitudinal pressing units, 31 longitudinal pressing units, 3 longitudinal pressing units, 31 end rods, 33 longitudinal pressing units, 33 fixing units, 3 fixing units, 12 fixing units, 5 supporting units, 12 and 3 supporting units, 3 supporting units, four supporting units, 61 trusses, 62 support blocks, 63 pier top seats, 64 support blocks, 65 diagonal support rods, 66 clamping and connecting rods and 67 vertical columns.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
in a first embodiment, referring to fig. 1-6, a continuous rigid frame steel truss combined bridge structure includes a continuous rigid frame beam and a steel truss;
the continuous rigid frame beam comprises a spliced bridge plate unit 1, transverse pressing components 2, longitudinal pressing units 3, the spliced bridge plate unit 1 comprises rigid frame section beams 11, limiting sleeves 12 and connecting rods 13, connecting grooves 14 are formed in the two ends of the rigid frame section beams 11, the rigid frame section beams 11 which are not less than six are arranged side by side to form bridge plates, the bridge plates which are not less than three are longitudinally arranged to form a bridge frame, the connecting rods 13 are arranged between the rigid frame section beams 11 which are opposite to the end parts, the limiting sleeves 12 are fixedly sleeved in the middle parts of the connecting rods 13, the two ends of the connecting rods 13 are respectively connected with the connecting grooves 14 at the end parts of the rigid frame section beams 11 in a clamping mode, the transverse pressing components 2 are installed in the middle parts of the upper sides of the bridge plates, and the longitudinal pressing units 3 are installed at the two ends of the bridge frame;
the splicing bridge plate unit 1 further comprises a pressure bearing assembly, a clamping assembly and a cushioning assembly, the end parts of the rigid frame section beams 11 in each bridge plate are connected through the pressure bearing assembly, and the upper sides of the two ends of the connecting rod 13 are connected with the clamping assembly through the cushioning assembly respectively.
Can make the synchronous atress of rigid frame festival roof beam 11 in the bridge plate through the pressure-bearing subassembly, avoid the potential safety hazard that single atress caused, the joint subassembly can make rigid frame festival roof beam 11 and connecting rod 13 connect stably, can not break away from, and the bradyseism subassembly can make the power of opening vibrations between rigid frame festival roof beam 11 and the connecting rod 13 eliminated by the buffering, avoids vibrations on the bridge frame to the too much conduction of tip.
The pressure-bearing assembly comprises rigid frame reinforcing plates 15, connecting sleeves 16 and bearing rods 17, the rigid frame reinforcing plates 15 are respectively fixed to the tops of two ends of each rigid frame joint beam 11, the connecting sleeves 16 are respectively fixed to each rigid frame reinforcing plate 15, the bearing rods 17 are respectively arranged on the tops of two ends of each bridge plate, and the bearing rods 17 penetrate through the corresponding connecting sleeves 16.
Can strengthen the intensity of 11 tip of rigid frame festival roof beam through rigid frame reinforcing plate 15, avoid pressure too big to lead to 11 tip of rigid frame festival roof beam to receive the extrusion force of connecting rod 13 and split, fix the support rod 17 through adapter sleeve 16, can make the atress of 11 tip of rigid frame festival roof beam in the bridge plate balanced through support rod 17, improve bearing capacity to improve bridge structures's intensity.
The bradyseism subassembly includes rectangle spout 19, sliding block 110 and extension spring 111, and rectangle spout 19 has been seted up respectively to the both ends upside of connecting rod 13, and sliding connection has sliding block 110 in the rectangle spout 19 respectively, and the one end of extension spring 111 is connected through solid fixed ring in the rectangle spout 19 near one side of stop collar 12, and the other end of extension spring 111 passes through solid fixed ring and connects the side of sliding block 110.
The clamping assembly comprises a plastic elastic sheet 112, a wedge-shaped fixture block 113 and a wedge-shaped clamping groove 114, the top of one side, far away from the extension spring 111, of the sliding block 110 is connected with one end of the plastic elastic sheet 112, the other end of the plastic elastic sheet 112 inclines upwards and is connected with the wedge-shaped fixture block 113, the tip of the wedge-shaped fixture block 113 faces one side of the plastic elastic sheet 112, and the upper side in the connecting groove 14 at the end part of the rigid frame beam 11 is provided with the wedge-shaped clamping groove 114 clamped with the wedge-shaped fixture block 113.
When the connecting rod 13 is installed, the connecting rod is gradually inserted into the connecting groove 14 at the end part of the rigid frame beam 11, when the wedge-shaped fixture block 113 touches the end part of the rigid frame section beam 11, the wedge-shaped fixture block 113 has a downward trend due to the shape of the wedge-shaped fixture block 113, the plastic elastic sheet 112 is pressed downward at the moment, when the rigid frame section beam 11 and the connecting rod 13 are inserted in place, the plastic elastic sheet 112 rebounds upward at the moment, the wedge-shaped fixture block 113 is clamped into the wedge-shaped fixture groove 114, due to the shape of the wedge-shaped fixture block 113, the rigid frame beam 11 and the connecting rod 13 are not easy to separate, when the rigid frame beam 11 and the connecting rod 13 are vibrated and tend to be separated, the wedge-shaped fixture block 113 drives the sliding block 110 to slide in the rectangular sliding groove 19 through the plastic elastic sheet 112, the extension spring 111 is pulled through the sliding block 110, and the vibration force is reduced through the tensile elastic action of the extension spring 111, so that the wedge-shaped clamping block 113 and the wedge-shaped clamping groove 114 which are clamped are prevented from being separated or damaged due to overlarge vibration.
Indulge and press unit 3 to include end bar 31, limiting plate 32, inserted bar 33, indulge depression bar 34, rib 35 and coupling assembling, the joint has inserted bar 33 in the spread groove of the rigid frame festival roof beam 11 at bridge frame both ends, the end fixing of inserted bar 33 has limiting plate 32, the top of end bar 31 and the limiting plate 32 bottom fixed connection of bridge frame tip, the bottom of end bar 31 is close to the one side middle part fixed connection of bridge frame roof beam structure and indulges the one end of depression bar 34, two indulge the other ends of depression bar 34 and pass through coupling assembling and connect, the both ends of end bar 31 are connected through rib 35 and the middle part side of indulging depression bar 34 respectively. The connecting groove at the end part of the rigid frame section beam 11 can be blocked by the matching of the inserted bar 33 and the limiting plate 32, so that the end connection of the end bar 31 and the rigid frame section beam 11 can be realized, the connecting strength of the longitudinal compression bar 34 and the end bar 31 can be higher by the rib bar 35, and the two longitudinal compression bars 34 are connected by the connecting assembly, so that the two ends of the bridge frame are mutually connected, and the stress middle part of the bridge frame is prevented from being deformed.
Coupling assembling includes connecting plate 36, through-hole 37, connecting bolt 38 and nut 310, and the one end that two longitudinal compression poles 34 are close is fixed with connecting plate 36 respectively, and two connecting plates 36 set up relatively, and it has nut 310 to inlay on one of them connecting plate 36, sets up the through-hole 37 that corresponds nut 310 on two connecting plates 36, and the interlude is equipped with connecting bolt 38 in the through-hole 37, connecting bolt 38's end and the nut 310 threaded connection who corresponds. The two connecting plates 36 are close to each other through the connection of the connecting bolts 38 and the nuts 310, so that the two longitudinal pressure rods 34 are close to each other, and the two ends of the bridge frame are close to each other to offset the middle stress.
The connecting assembly comprises a buffer spring 39, the connecting bolt 38 is sleeved with the buffer spring 39, and the buffer spring 39 is positioned between the hexagonal end of the connecting bolt 38 and the connecting plate 36 provided with the through hole 37. Can make the cushioning degree that has between two connecting plates 36 through buffer spring 39, can use the buffer spring 39 of different buffering dynamics according to the demand of cushioning degree, reduce the vibrations that the bridge frame received.
The steel truss includes fixed subassembly 4, and fixed subassembly 4 is installed respectively to the both ends of indulging pressing unit 3.
The fixing assembly 4 comprises a fixing cross beam 41, a fixing ring 42 and a fixing anchor rod 43, one side of the end rod 31, which is far away from the longitudinal compression rod 34, is fixed with the fixing cross beam 41, two ends of the fixing cross beam 41 are respectively fixedly connected with the fixing ring 42, and the fixing anchor rod 43 is inserted in the fixing ring 42. Can be fixed to the tip of end pole 31 through fixed cross beam 41, bridge end base can be pour out through concrete and reinforcing bar to the below of fixed cross beam 41, then is fixed ring 42 through fixed stock 43 to fixed cross beam 41 is fixed, then with fixed stock 43 anchor income bridge end base, thereby fix the both ends of bridge roof beam frame.
The bridge deck can be formed by a plurality of rigid frame section beams 11, each bridge deck rigid frame section beam 11 can reduce the weight of a single component in the whole bridge structure, the transportation is convenient, the number of the rigid frame section beams 11 in the bridge deck can be increased or decreased according to the width of a bridge, the number of the bridge decks can be increased or decreased according to the span of the bridge, the main body of the bridge deck can be formed by splicing, the application range can be improved, the end parts of the rigid frame section beams 11 can be connected through the connecting rods 13, the depth of inserting the two ends of the connecting rods 13 into the connecting grooves at the end parts of the two rigid frame section beams 11 can be ensured to be the same through the limiting sleeves 12, the reduction of the connecting strength caused by the fact that one end is short and the other end is long is avoided, meanwhile, the damage to the end parts of the rigid frame section beams 11 caused by overlarge pressure is avoided, the transverse pressing component 2 enables the plurality of the parallel rigid frame section beams 11 to be transversely connected, the strength of the bridge deck is ensured, the connection firmness of the longitudinally distributed bridge decks can be realized through the longitudinal pressing unit 3, the fixing component 4 is used for fixing the end part of the bridge frame, and large deformation of the bridge frame is avoided.
In the second embodiment, referring to fig. 7-8, a continuous rigid frame steel truss combined bridge structure is substantially the same as the above embodiments, except for the difference of the connecting components:
the connecting assembly comprises connecting plates 36, hinged supports 311, side rods 312, connecting columns 313, compression springs 314, movable rods 315, a central block 316 and a push-pull rod 317, wherein one ends of the two longitudinal compression rods 34, which are far away from the end rod 31, are arranged in an up-and-down staggered manner and are respectively provided with the connecting plates 36, the front end and the rear end of the inner side of one connecting plate 36 are respectively movably connected with one end of each side rod 312 through the hinged supports 311, the connecting columns 313 are respectively and movably connected with the middle parts of the two side rods 312, the compression springs 314 for cushioning are arranged between the two connecting columns 313, the middle parts of the inner sides of the other connecting plates 36 are connected with one end of the push-pull rod 317, the other end of the push-pull rod 317 is fixedly provided with the central block 316, the front side and the rear side of the central block 316 are respectively and movably connected with one end of the corresponding side rod 312, and the other end of the two movable rods 315 is movably connected with the end of the corresponding side rod 312.
When the bridge frame is vibrated and tends to be opened, the two connecting plates 36 approach each other, the push-pull rod 317 pushes the central block 316 to move towards the side rods 312, the end parts of the two movable rods 315 synchronously move towards the compression springs 314 at the moment, so that the two side rods 312 incline inwards, the compression springs 314 between the two side rods 312 are compressed, the compression springs 314 rebound after being compressed, the push-pull rod 317 pushes the two connecting plates 36 to be away from each other, the two longitudinal compression rods 34 compress and fix the end parts of the bridge frame, the bridge frame is prevented from being excessively loosened or expanded outwards due to vibration, and the stability and safety of the whole bridge structure are ensured,
the connecting assembly further includes a rib plate 318, and two sides of the end of the push-pull rod 317 are connected to the corresponding connecting plates 36 through the rib plate 318, so as to enhance the connection strength between the push-pull rod 317 and the connecting plates 36, and avoid the influence of the small connection area between the push-pull rod 317 and the connecting plates 36 on the connection stability.
In the third embodiment, referring to fig. 1 to 6, a continuous rigid frame steel truss combined bridge structure is substantially the same as the above embodiments, except that:
the steel truss still includes to stride and bears unit 5 and tubercle bearing unit 6, and the both sides of bridge frame are installed respectively and are played the span bearing unit 5 that improves the rigidity effect, and stride and bear the bottom that unit 5 passes through tubercle bearing unit 6 connection bridge frame.
The bearing unit 5 is additionally arranged to further enhance the rigidity of the bridge frame and reduce deformation, the shape of the arch bearing beam 51 can improve the stress strength, the pull rod 54 and the mounting block 53 provide pulling force for the supporting plate 52, and the supporting plate 52 can bear the middle part of the lower side of the bridge plate, so that the strength of the bridge is improved, and the deformation which can be generated is reduced.
The nodule bearing unit 6 comprises a truss girder 61, a supporting block 62, pier footstock 63, a column 67 and a supporting piece, the pier footstock 63 is arranged at two ends below the joint of the two bridge slabs, the column 67 is connected at the tops of the two pier footstock 63 respectively, the tops of the two columns 67 are connected through the truss girder 61, the truss girder 61 is fixed on the two arch bearing beams 51, the supporting block 62 is fixed at the position, on the inner side of the column 67, of the lower side of the arch bearing beams 51, and the pier footstock 63 is connected with the rigid frame section beam 11 through the supporting piece.
Can strengthen the junction of two decking through knot bearing unit 6, the rigidity that avoids the concatenation to lead to descends, truss 61 can be fixed through arch load beam 51, truss 61 can the stationary mast 67, support stand 67 through pier footstock 63, the tray 62 through the stand 67 top supports arch load beam 51, the pier that can make the below provides the support dynamics for arch load beam 51, pier footstock 63 also supports the junction of two decking through support piece simultaneously, improve bridge rigidity.
The supporting member comprises a supporting block 64, diagonal braces 65 and clamping bars 66, through grooves 18 are respectively formed in two ends of the bottom of the rigid frame beam 11, the supporting block 64 is fixed to the top of the pier top seat 63, two diagonal braces 65 distributed in a V shape are respectively fixed to two sides of the supporting block 64, the clamping bars 66 are respectively fixed to the tops of the two diagonal braces 65, and the tops of the clamping bars 66 are clamped with the through grooves 18.
The diagonal brace 65 can be installed through the support block 64, the through groove 18 is clamped through the clamping rod 66, and the diagonal brace 65 supports the end part of the rigid frame section beam 11, so that the deformation of the end part of the rigid frame section beam 11 caused by the reduction of stress is avoided, and the rigidity of the bridge is improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a bridge structures of continuous rigid frame steel truss combination, includes continuous rigid frame roof beam and steel truss, its characterized in that:
the continuous rigid frame beam comprises a splicing bridge plate unit (1), a transverse pressing component (2) and a longitudinal pressing unit (3), the spliced bridge plate unit (1) comprises a rigid frame beam (11), a limiting sleeve (12) and a connecting rod (13), connecting grooves (14) are respectively arranged at two ends of each rigid frame beam (11), at least six rigid frame beams (11) are arranged in parallel to form bridge plates, at least three bridge plates are longitudinally arranged to form a bridge frame, a connecting rod (13) is arranged between the rigid frame beams (11) with opposite ends, a limiting sleeve (12) is fixedly sleeved in the middle of the connecting rod (13), two ends of the connecting rod (13) are respectively clamped with a connecting groove (14) at the end part of the rigid frame beam (11), a transverse pressing assembly (2) for transversely fixing the bridge plate is installed in the middle of the upper side of each bridge plate, and longitudinal pressing units (3) are installed at two ends of the bridge frame;
the steel truss comprises a fixing component (4), and the fixing components (4) are respectively installed at two ends of the longitudinal pressing unit (3).
2. The bridge structure of continuous rigid frame steel truss combination according to claim 1, wherein the splicing bridge plate unit (1) further comprises a bearing component, a clamping component and a cushioning component, the ends of the rigid frame beam sections (11) in each bridge plate are connected through the bearing component, and the upside of the two ends of the connecting rod (13) are respectively connected with the clamping component through the cushioning component.
3. The continuous rigid frame steel truss combined bridge structure according to claim 2, wherein the pressure bearing assembly comprises rigid frame reinforcing plates (15), connecting sleeves (16) and bearing rods (17), the rigid frame reinforcing plates (15) are respectively fixed at the tops of the two ends of the rigid frame beam sections (11), the connecting sleeves (16) are respectively fixed on each rigid frame reinforcing plate (15), the bearing rods (17) are respectively arranged at the tops of the two ends of the bridge plate, and the bearing rods (17) penetrate through the corresponding connecting sleeves (16).
4. The bridge structure of continuous rigid frame steel truss combination of claim 2, characterized in that, the bradyseism subassembly includes rectangle spout (19), sliding block (110) and extension spring (111), rectangle spout (19) have been seted up respectively to the both ends upside of connecting rod (13), sliding block (110) have been connected to sliding in rectangle spout (19) respectively, the one side that is close to stop collar (12) in rectangle spout (19) is through the one end of solid fixed ring connection extension spring (111), the side of sliding block (110) is connected through solid fixed ring to the other end of extension spring (111).
5. The bridge structure of continuous rigid frame steel truss combination according to claim 4, wherein the clamping assembly comprises a plastic elastic sheet (112), a wedge-shaped clamping block (113) and a wedge-shaped clamping groove (114), the top of one side, away from the tension spring (111), of the sliding block (110) is connected with one end of the plastic elastic sheet (112), the other end of the plastic elastic sheet (112) inclines upwards and is connected with the wedge-shaped clamping block (113), the tip of the wedge-shaped clamping block (113) faces one side of the plastic elastic sheet (112), and the wedge-shaped clamping groove (114) clamped with the wedge-shaped clamping block (113) is formed in the upper side in the connecting groove (14) at the end part of the rigid frame beam (11).
6. The bridge structure of continuous rigid frame steel truss combination of claim 1, characterized in that, longitudinal compression unit (3) includes end bar (31), limiting plate (32), inserted bar (33), longitudinal compression bar (34), rib bar (35) and coupling assembling, the inserted bar (33) has been pegged graft in the spread groove of rigid frame section beam (11) at bridge frame both ends, the end fixing of inserted bar (33) has limiting plate (32), the top of end bar (31) and the limiting plate (32) bottom fixed connection of bridge frame tip, the bottom of end bar (31) is close to the one end of one side middle part fixed connection longitudinal compression bar (34) of bridge frame, and the other end of two longitudinal compression bars (34) passes through coupling assembling to be connected, the both ends of end bar (31) are connected through the middle part side of rib bar (35) and longitudinal compression bar (34) respectively.
7. The bridge structure of continuous rigid frame steel truss combination of claim 6, characterized in that, coupling assembling contains connecting plate (36), through-hole (37), connecting bolt (38) and nut (310), and the one end that two longitudinal compression poles (34) are close is fixed with connecting plate (36) respectively, and two connecting plates (36) set up relatively, and inlay on one of them connecting plate (36) and have nut (310), set up through-hole (37) that correspond nut (310) on two connecting plates (36), the interlude is equipped with connecting bolt (38) in through-hole (37), the end and the nut (310) threaded connection that corresponds of connecting bolt (38).
8. The bridge structure of continuous rigid frame steel truss combination according to claim 7, wherein the connecting assembly comprises a buffer spring (39), the connecting bolt (38) is sleeved with the buffer spring (39), and the buffer spring (39) is located between the hexagonal end of the connecting bolt (38) and the connecting plate (36) provided with the through hole (37).
9. The bridge structure combined by the continuous rigid frame steel girders according to claim 6, wherein the connecting assembly comprises connecting plates (36), hinged supports (311), side rods (312), connecting columns (313), compression springs (314), a movable rod (315), a central block (316) and a push-pull rod (317), one ends of the two longitudinal compression rods (34) far away from the end rod (31) are arranged in a vertically staggered manner and are respectively provided with the connecting plates (36), the front and rear ends of the inner side of one connecting plate (36) are respectively movably connected with one end of the side rod (312) through the hinged support (311), the middle parts of the two side rods (312) are respectively movably connected with the connecting column (313), the compression springs (314) for cushioning are arranged between the two connecting columns (313), the middle part of the inner side of the other connecting plate (36) is connected with one end of the push-pull rod (317), the other end of the push-pull rod (317) is fixed with the central block (316), the front side and the rear side of the central block (316) are respectively movably connected with one end of a movable rod (315), and the other ends of the two movable rods (315) are movably connected with the end parts of the corresponding side rods (312).
10. The bridge structure of the continuous rigid frame steel truss combination according to claim 1, wherein the steel truss further comprises a span bearing unit (5) and a knot bearing unit (6), the span bearing unit (5) for improving rigidity is respectively installed at two sides of the bridge frame, and the span bearing unit (5) is connected with the bottom of the bridge frame through the knot bearing unit (6).
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