CN111257120B - Bridge combination unit space model experimental device - Google Patents
Bridge combination unit space model experimental device Download PDFInfo
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- CN111257120B CN111257120B CN202010058181.9A CN202010058181A CN111257120B CN 111257120 B CN111257120 B CN 111257120B CN 202010058181 A CN202010058181 A CN 202010058181A CN 111257120 B CN111257120 B CN 111257120B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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Abstract
The invention relates to a model experiment device, in particular to a bridge combined unit space model experiment device which comprises a device bracket, a driving motor I, a supporting mechanism II, an angle bracket, a pressurizing mechanism and an experimental bridge, wherein different clamping modes can be combined by a plurality of supporting mechanisms I and a plurality of supporting mechanisms II to clamp a bridge unit so as to meet different requirements for supporting the bridge unit in an experiment; the angle support is driven to slide on the device support through a driving motor I, the pressurizing position of the pressurizing mechanism is adjusted, the pressurizing mechanism is driven to slide on the angle support through a driving motor II arranged on the pressurizing mechanism, and the pressurizing angle of the pressurizing mechanism is adjusted; the experimental bridge is spliced in a shell and beam combination mode, so that the simulation accuracy is ensured, and the number of units is greatly reduced; and the calculation cost and the convergence difficulty of the nonlinear finite element analysis of the concrete box girder are also greatly reduced.
Description
Technical Field
The invention relates to a model experiment device, in particular to a bridge combination unit space model experiment device.
Background
For example, publication No. CN203275108U discloses a static force loading device for a bridge model, which includes a base, on which at least two supports for placing test samples are disposed, and a loading device is disposed in a vertical direction of the base. Compared with the prior art, because the utility model has the advantages of: the static loading device special for the bridge model has a simple structure and low cost; in addition, the guide rails are arranged on the two sides of the base, and the guide grooves are formed in the support and the pillar, so that the mechanical property of the test sample piece can be measured in multiple points; the pillar realizes the lifting of the loading device by adopting an outer rod and an inner rod through a bolt; the displacement meter is arranged on the movable support plate, and the pressure sensor is arranged on the top, so that the measurement of the deflection value and the force value is realized; the force loading is realized by simple transmission of a worm gear and a worm; the utility model discloses a shortcoming can not carry out the multi-angle pressurization experiment to the experiment bridge floor.
Disclosure of Invention
The invention aims to provide a bridge combined unit space model experimental device which can be used for carrying out multi-angle pressurization experiments on an experimental bridge deck.
The purpose of the invention is realized by the following technical scheme:
a bridge combined unit space model experiment device comprises a device support, a driving motor I, a plurality of supporting mechanisms II, an angle support, a pressurizing mechanism and an experiment bridge, wherein the driving motor I is fixedly connected to the device support, one supporting mechanism I is fixedly connected to the device support, the plurality of supporting mechanisms II are arranged, the plurality of supporting mechanisms II are respectively and fixedly connected among the plurality of supporting mechanisms I, the angle support is slidably connected to the device support, the angle support is connected to an output shaft of the driving motor I through threads, the pressurizing mechanism is slidably connected to the angle support, the pressurizing mechanism is in meshing transmission with the angle support, the plurality of experiment bridges are fixedly connected among the plurality of experiment bridges, the plurality of experiment bridges form bridge units, and the plurality of supporting mechanisms I and the plurality of supporting mechanisms II are combined into different clamping modes, and clamping the bridge unit.
As further optimization of the technical scheme, the space model experiment device for the bridge combined unit is characterized in that the number of the experiment bridges is two, the number of the support mechanisms I is three, the number of the support mechanisms II is two, the two support mechanisms II are arranged among the three support mechanisms I, and the two support mechanisms II and the three support mechanisms I are combined into different clamping modes to clamp the bridge unit.
As further optimization of the technical scheme, the device support comprises two supporting side plates, two connecting slide rails I and two connecting slide rails II, the connecting slide rails I are fixedly connected between two sides of the two supporting side plates, the connecting slide rails II are fixedly connected to the outer sides of the two connecting slide rails I, and driving motors I are fixedly connected to the two connecting slide rails I.
As the technical scheme is further optimized, the bridge combination unit space model experiment device comprises a supporting mechanism I, a sliding bottom plate I, a supporting hydraulic cylinder I, a plane supporting plate and a centering hydraulic cylinder I, wherein the sliding bottom plate I is fixedly connected to the telescopic end of the pushing hydraulic cylinder I, the supporting hydraulic cylinder I is fixedly connected to the sliding bottom plate I, the plane supporting plate is fixedly connected to the telescopic end of the supporting hydraulic cylinder I, and the centering hydraulic cylinder I is fixedly connected to two side edges of the plane supporting plate.
As a further optimization of the technical scheme, the invention relates to a space model experimental device for a bridge combined unit, wherein a supporting mechanism II comprises a pushing hydraulic cylinder II, a sliding bottom plate II, a point supporting hydraulic cylinder, a righting bottom frame and a righting hydraulic cylinder II, the sliding bottom plate II is fixedly connected to the telescopic end of the pushing hydraulic cylinder II, the point supporting hydraulic cylinder is fixedly connected to the sliding bottom plate II, the righting bottom frame is fixedly connected to the middle part of the telescopic end of the point supporting hydraulic cylinder, the righting hydraulic cylinder II is fixedly connected to both side edges of the righting bottom frame, the pushing hydraulic cylinder I positioned on the front side is fixedly connected to supporting side plates, the two pushing hydraulic cylinders II are respectively and fixedly connected to the two sliding bottom plates I, the other two pushing hydraulic cylinders I are respectively and fixedly connected to the two sliding bottom plates II, two sides of the three sliding bottom plates I are respectively and slidably connected to the two connecting slide rails I, two sides of the two sliding bottom plates II are respectively connected in the two connecting sliding rails I in a sliding mode.
As a further optimization of the technical scheme, the experimental device for the space model of the bridge combination unit comprises an angle bracket, an arc groove and an arc rack, wherein two sides of the arc bracket are respectively connected to two connecting slide rails II in a sliding manner, the arc groove is formed in the arc bracket, the arc rack is fixedly connected to two sides of the arc bracket, two sides of the arc bracket are respectively connected to output shafts of two driving motors I through threads, and the circle centers of the arc rack and the arc groove are overlapped.
As the technical scheme is further optimized, the space model experimental device for the bridge combination unit comprises a pressurizing mechanism, wherein the pressurizing mechanism comprises an arc sliding block, a driving motor II, a driving gear and a pressurizing hydraulic cylinder, the arc sliding block is connected in an arc groove in a sliding mode, the driving motor II is fixedly connected to the arc sliding block, the driving gear is fixedly connected to an output shaft of the driving motor II, the driving gear and an arc rack are in meshed transmission, and the pressurizing hydraulic cylinder is fixedly connected to the lower end of the arc sliding block.
As further optimization of the technical scheme, the invention relates to a space model experimental device of a bridge combined unit, the experiment bridge includes the shell bottom plate, girder unit I, the shell curb plate, the shell roof, girder unit III, the bridge floor curb plate, connecting splint and bridge floor connecting plate, the equal fixedly connected with roof beam unit I in both sides of shell bottom plate, equal fixedly connected with shell curb plate on two roof beam units I, equal fixedly connected with shell curb plate on two shell curb plates, the equal fixedly connected with bridge floor curb plate in the outside of two roof beam units III, fixedly connected with shell roof plate between two roof beam units III, connect through connecting splint between the upper end of two experiment bridges, connect through a plurality of bridge floor connecting plates between the middle part of two experiment bridges, the experiment bridge is provided with a plurality ofly, connect through connecting splint between the upper end of two adjacent experiment bridges, connect through a plurality of bridge floor connecting plates between the middle part of two adjacent experiment bridges.
As further optimization of the technical scheme, the experimental bridge further comprises two beam units II, the number of the beam units I is three, the number of the shell side plates is three, the number of the shell top plates is two, the number of the bridge deck side plates is two, the number of the shell side plates in the middle is fixedly connected with the beam units II, and the number of the two shell side plates on two sides of displacement is fixedly connected with the beam units III.
The bridge combined unit space model experimental device has the beneficial effects that:
according to the experimental device for the space model of the bridge combined unit, disclosed by the invention, different clamping modes can be combined by the plurality of supporting mechanisms I and the plurality of supporting mechanisms II, so that a bridge unit is clamped, and different requirements for supporting the bridge unit in an experiment are met; the angle bracket is driven to slide on the device bracket through a driving motor I, the pressurizing position of the pressurizing mechanism is adjusted, the pressurizing mechanism is driven to slide on the angle bracket through a driving motor II arranged on the pressurizing mechanism, and the pressurizing angle of the pressurizing mechanism is adjusted; the experimental bridge is spliced in a shell and beam combination mode, so that the simulation accuracy is ensured, the number of units is greatly reduced, and the calculation cost and the convergence difficulty of nonlinear finite element analysis of the concrete box beam are also greatly reduced; compared with a solid unit model, the shell and beam combined unit saves the process of obtaining the internal force from the stress according to an integral rule, can directly obtain the internal force of the structure, and is convenient to directly link with the existing design standard method and carry out reinforcement design and strength checking calculation.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, integral connections, direct connections, indirect connections through intervening media, and communication between two components. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, in the description of the present invention, the meaning of "a plurality", or "a plurality" is two or more unless otherwise specified.
FIG. 1 is a schematic diagram of the overall structure of a bridge combined unit space model experimental device of the invention;
FIG. 2 is a schematic view of a partial structure of a spatial model experimental apparatus of a bridge combination unit according to the present invention;
FIG. 3 is a schematic view of a partial structure of a spatial model experimental apparatus of a bridge combination unit according to the present invention;
FIG. 4 is a schematic view of the device mounting structure of the present invention;
FIG. 5 is a schematic structural view of a support mechanism I of the present invention;
FIG. 6 is a schematic structural view of a support mechanism II of the present invention;
FIG. 7 is a schematic view of the angle bracket of the present invention;
FIG. 8 is a schematic view of the pressing mechanism of the present invention;
FIG. 9 is a first schematic view of the experimental bridge structure of the present invention;
FIG. 10 is a schematic view of the experimental bridge structure of the present invention;
FIG. 11 is a third schematic view of an experimental bridge structure of the present invention;
FIG. 12 is a fourth schematic view of an experimental bridge construction of the present invention;
FIG. 13 is a fifth schematic view of an experimental bridge construction of the present invention;
fig. 14 is a schematic view of the connecting splint of the present invention.
In the figure: a device holder 1; supporting the side plate 1-1; connecting a sliding rail I1-2; connecting a sliding rail II 1-3; driving a motor I2; a supporting mechanism I3; pushing a hydraulic cylinder I3-1; 3-2 parts of a sliding bottom plate; 3-3 parts of a supporting hydraulic cylinder; 3-4 of a planar support plate; 3-5 parts of a centralizing hydraulic cylinder; a support mechanism II 4; pushing a hydraulic cylinder II 4-1; a sliding bottom plate II 4-2; a point support hydraulic cylinder 4-3; righting the underframe 4-4; a centralizing hydraulic cylinder II 4-5; an angle bracket 5; 5-1 of a circular arc bracket; 5-2 of arc grooves; 5-3 of an arc rack; a pressurizing mechanism 6; a circular arc sliding block 6-1; driving a motor II 6-2; driving gear 6-3; 6-4 of a pressurizing hydraulic cylinder; an experimental bridge 7; a shell bottom plate 7-1; the beam unit I7-2; 7-3 of shell side plates; 7-4 of a shell top plate; 7-5 of a beam unit II; 7-6 of a beam unit; 7-7 bridge deck side plates; connecting splints 7-8; and 7-8 bridge deck connecting plates.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first specific implementation way is as follows:
the embodiment is described below with reference to fig. 1 to 14, a bridge combination unit space model experimental device, which includes a device support 1, a driving motor i 2, a plurality of supporting mechanisms i 3, a plurality of supporting mechanisms ii 4, an angle support 5, a plurality of pressurizing mechanisms 6 and an experimental bridge 7, wherein the driving motor i 2 is fixedly connected to the device support 1, the plurality of supporting mechanisms i 3 are provided, one supporting mechanism i 3 is fixedly connected to the device support 1, the plurality of supporting mechanisms ii 4 are provided, the plurality of supporting mechanisms ii 4 are respectively and fixedly connected between the plurality of supporting mechanisms i 3, the angle support 5 is slidably connected to the device support 1, the angle support 5 is connected to an output shaft of the driving motor i 2 through threads, the pressurizing mechanisms 6 are slidably connected to the angle support 5, the pressurizing mechanisms 6 and the angle support 5 are in meshing transmission, the experimental bridge 7 is provided in plurality, the experimental bridges 7 are fixedly connected with one another, the experimental bridges 7 form bridge units, the supporting mechanisms I3 and the supporting mechanisms II 4 are combined into different clamping modes, and the bridge units are clamped; different clamping modes can be combined by the supporting mechanisms I3 and the supporting mechanisms II 4 to clamp the bridge unit, so that different requirements for supporting the bridge unit in an experiment are met; the angle bracket 5 is driven to slide on the device bracket 1 through the driving motor I2, the pressurizing position of the pressurizing mechanism 6 is adjusted, and the pressurizing mechanism 6 is driven to slide on the angle bracket 5 through the driving motor II 6-2 arranged on the pressurizing mechanism 6, so that the pressurizing angle of the pressurizing mechanism 6 is adjusted; the experimental bridge 7 is spliced by adopting a shell and beam combination mode, so that the simulation accuracy is ensured, the number of units is greatly reduced, and the calculation cost and the convergence difficulty of the nonlinear finite element analysis of the concrete box beam are also greatly reduced; compared with a solid unit model, the shell and beam combined unit omits the process of obtaining the internal force from the stress according to an integral rule, can directly obtain the internal force of the structure, and is convenient to be directly connected with the existing design standard method for reinforcement design and strength checking calculation.
The second embodiment is as follows:
the following describes the present embodiment with reference to fig. 1 to 14, and the present embodiment further describes the first embodiment, the experimental bridge 7 is provided with two, the number of the support mechanisms i 3 is three, the number of the support mechanisms ii 4 is two, the two support mechanisms ii 4 are arranged between the three support mechanisms i 3, and the two support mechanisms ii 4 and the three support mechanisms i 3 are combined into different clamping modes to clamp the bridge unit.
The third concrete implementation mode:
the second embodiment is further described with reference to fig. 1 to 14, in which the device bracket 1 includes two supporting side plates 1-1, two connecting slide rails i 1-2 and two connecting slide rails ii 1-3, the two supporting side plates 1-1 are fixedly connected between two sides of the two supporting side plates 1-1, the two connecting slide rails i 1-2 are fixedly connected to outer sides of the two connecting slide rails i 1-2, and the two connecting slide rails i 1-2 are fixedly connected to a driving motor i 2.
The fourth concrete implementation mode is as follows:
the third embodiment is further described with reference to fig. 1-14, in which the support mechanism i 3 includes a pushing hydraulic cylinder i 3-1, a sliding bottom plate i 3-2, a supporting hydraulic cylinder i 3-3, a planar support plate 3-4 and a centering hydraulic cylinder i 3-5, the sliding bottom plate i 3-2 is fixedly connected to the telescopic end of the pushing hydraulic cylinder i 3-1, the supporting hydraulic cylinder i 3-3 is fixedly connected to the sliding bottom plate i 3-2, the planar support plate 3-4 is fixedly connected to the telescopic end of the supporting hydraulic cylinder i 3-3, and the centering hydraulic cylinder i 3-5 is fixedly connected to both side edges of the planar support plate 3-4.
The fifth concrete implementation mode is as follows:
the fourth embodiment is further described with reference to fig. 1-14, wherein the support mechanism ii 4 comprises a pushing hydraulic cylinder ii 4-1, a sliding bottom plate ii 4-2, a point-supporting hydraulic cylinder 4-3, a righting base frame 4-4 and a righting hydraulic cylinder ii 4-5, the telescopic end of the pushing hydraulic cylinder ii 4-1 is fixedly connected with the sliding bottom plate ii 4-2, the sliding bottom plate ii 4-2 is fixedly connected with the point-supporting hydraulic cylinder 4-3, the middle part of the telescopic end of the point-supporting hydraulic cylinder 4-3 is fixedly connected with the righting base frame 4-4, two side edges of the righting base frame 4-4 are fixedly connected with the righting hydraulic cylinder ii 4-5, the pushing hydraulic cylinder i 3-1 at the front side is fixedly connected with the supporting side plate 1-1, two pushing hydraulic cylinders II 4-1 are respectively fixedly connected to the two sliding bottom plates I3-2, the other two pushing hydraulic cylinders I3-1 are respectively fixedly connected to the two sliding bottom plates II 4-2, two sides of the three sliding bottom plates I3-2 are respectively connected into the two connecting sliding rails I1-2 in a sliding mode, and two sides of the two sliding bottom plates II 4-2 are respectively connected into the two connecting sliding rails I1-2 in a sliding mode.
The sixth specific implementation mode:
the following describes the present embodiment with reference to fig. 1 to 14, and the present embodiment further describes an embodiment five, where the angle bracket 5 includes an arc bracket 5-1, an arc groove 5-2, and an arc rack 5-3, two sides of the arc bracket 5-1 are respectively slidably connected to two connecting slide rails ii 1-3, the arc bracket 5-1 is provided with an arc groove 5-2, two sides of the arc bracket 5-1 are both fixedly connected with the arc rack 5-3, two sides of the arc bracket 5-1 are respectively connected to output shafts of two driving motors i 2 through threads, and centers of the arc rack 5-3 and the arc groove 5-2 coincide.
The seventh embodiment:
the sixth embodiment is further described with reference to fig. 1 to 14, where the pressing mechanism 6 includes an arc sliding block 6-1, a driving motor ii 6-2, a driving gear 6-3, and a pressing hydraulic cylinder 6-4, the arc sliding block 6-1 is slidably connected in the arc groove 5-2, the driving motor ii 6-2 is fixedly connected to the arc sliding block 6-1, the driving gear 6-3 is fixedly connected to an output shaft of the driving motor ii 6-2, the driving gear 6-3 is in meshing transmission with the arc rack 5-3, and the pressing hydraulic cylinder 6-4 is fixedly connected to a lower end of the arc sliding block 6-1.
The specific implementation mode is eight:
the embodiment is described below with reference to fig. 1 to 14, and the seventh embodiment is further described in the present embodiment, where the experimental bridge 7 includes a shell bottom plate 7-1, beam units i 7-2, shell side plates 7-3, shell top plates 7-4, beam units iii 7-6, bridge deck side plates 7-7, connecting splints 7-8, and bridge deck connecting plates 7-8, two sides of the shell bottom plate 7-1 are fixedly connected with beam units i 7-2, two beam units i 7-2 are fixedly connected with shell side plates 7-3, two shell side plates 7-3 are fixedly connected with shell side plates 7-3, outer sides of two beam units iii 7-6 are fixedly connected with bridge deck side plates 7-7, and a shell top plate 7-4 is fixedly connected between two beam units iii 7-6, the experimental bridges 7 are arranged in a plurality, the upper ends of two adjacent experimental bridges 7 are connected through connecting splints 7-8, and the middle parts of the two adjacent experimental bridges 7 are connected through a plurality of bridge deck connecting plates 7-8.
The specific implementation method nine:
the following describes the present embodiment with reference to fig. 1 to 14, and the present embodiment further describes an eighth embodiment, where the experimental bridge 7 further includes two beam units ii 7-5, two shell bottom plates 7-1 are provided, three beam units i 7-2 are provided correspondingly, three shell side plates 7-3 are provided correspondingly, two shell top plates 7-4 are provided correspondingly, two bridge deck side plates 7-7 are provided correspondingly, the shell side plate 7-3 located in the middle is fixedly connected with the beam unit ii 7-5, and the two shell side plates 7-3 located on two sides of the displacement are both fixedly connected with the beam unit iii 7-6.
The invention relates to a space model experimental device for a bridge combined unit, which has the working principle that:
when in use, the experimental bridge is manufactured according to a certain proportion of a real bridge, and the bridge unit is manufactured, as shown in figures 9 to 14, the experimental bridge 7 can be manufactured under the condition that one shell bottom plate 7-1 is arranged, two sides of the shell bottom plate 7-1 are fixedly connected with beam units I7-2, two beam units I7-2 are fixedly connected with shell side plates 7-3, two shell side plates 7-3 are fixedly connected with shell side plates 7-3, the outer sides of two beam units III 7-6 are fixedly connected with bridge deck side plates 7-7, a shell top plate 7-4 is fixedly connected between the two beam units III 7-6, a plurality of experimental bridges 7 are arranged, the upper ends of two adjacent experimental bridges 7 are connected through connecting splints 7-8, and the middle parts of the two adjacent experimental bridges 7 are connected through a plurality of bridge deck connecting plates 7-8; the experimental bridge 7 can also be made according to different requirements of experimental width, as shown in fig. 10, or a plurality of shell bottom plates 7-1 are provided, a corresponding number of beam units I7-2 is provided, a corresponding number of shell side plates 7-3 is provided, a corresponding number of shell top plates 7-4 is provided, a corresponding number of beam units II 7-5 is provided, two beam units III 7-6 and two bridge deck side plates 7-7 are provided, and a corresponding number of bridge deck connecting plates 7-8 are provided, a bridge deck connecting plate 7-8 is arranged in a shell formed by each shell bottom plate 7-1, each shell side plate 7-3 and each shell top plate 7-4 to connect a plurality of experimental bridges 7, the upper ends of two adjacent experimental bridges 7 are connected through connecting splints 7-8, and a plurality of experimental bridges 7 are arranged according to different use requirements; the experimental bridge 7 is spliced by adopting a shell and beam combination mode, so that the simulation accuracy is ensured, the number of units is greatly reduced, and the calculation cost and the convergence difficulty of the nonlinear finite element analysis of the concrete box beam are also greatly reduced; the shell and beam combined unit is adopted, compared with an entity unit model, the process of obtaining the internal force from the stress according to an integral rule is omitted, the internal force of the structure can be directly obtained, and the direct connection with the existing design standard method is facilitated, and reinforcement design and strength checking calculation are carried out; the method comprises the following steps that a bridge unit formed by mutually connecting a plurality of experimental bridges 7 is placed between a plurality of supporting mechanisms I3 and a plurality of supporting mechanisms II 4, when plane supporting is needed, the upper end faces of a plurality of plane supporting plates 3-4 are in contact with the lower end face of the bridge unit, the bottom face of the bridge unit is subjected to plane supporting, the side face of the bridge unit is supported through a righting hydraulic cylinder I3-5, when the supporting position needs to be adjusted, the supporting position of the bottom face of the bridge unit is adjusted through a plurality of pushing hydraulic cylinders I3-1 to adjust a plurality of plane supporting plates 3-4, the supporting height of the plane supporting plates 3-4 is adjusted through the supporting hydraulic cylinders I3-3, and the supporting hydraulic cylinders I3-3 can independently move to adjust the number of the supporting bridge units; as shown in fig. 2 and 3, a plurality of supporting mechanisms I3 and a plurality of supporting mechanisms II 4 are arranged in a mutually crossed manner, so that a supporting bridge is conveniently supported, and the supporting positions of a plane supporting plate 3-4 and a point supporting hydraulic cylinder 4-3 are conveniently adjusted by a pushing hydraulic cylinder I3-1 and a pushing hydraulic cylinder II 4-1; the bottom surfaces of the bridge units are point-supported through the point-supporting hydraulic cylinders 4-3, the side surfaces of the bridge units are supported through the righting hydraulic cylinders II 4-5, when the supporting positions need to be adjusted, the supporting positions of the bottom surfaces of the bridge units are adjusted through the plurality of pushing hydraulic cylinders II 4-1, the plurality of point-supporting hydraulic cylinders 4-3 are adjusted, the supporting heights are adjusted through the supporting hydraulic cylinders 4-3, and the plurality of supporting hydraulic cylinders 4-3 can move independently to adjust the number of the supporting bridge units; different clamping modes can be combined by the supporting mechanisms I3 and the supporting mechanisms II 4 to clamp the bridge unit, so that different requirements for supporting the bridge unit in an experiment are met; the angle bracket 5 is driven to slide on the device bracket 1 through the driving motor I2, and the pressurizing position of the pressurizing mechanism 6 is adjusted; and starting the driving motor II 6-2, starting the output shaft of the driving motor II 6-2 to rotate, driving the driving gear 6-3 to rotate by the output shaft of the driving motor II 6-2, enabling the driving gear 6-3 to be in meshing transmission with the arc rack 5-3, and enabling the driving gear 6-3 to drive the pressurizing mechanism 6 to slide on the angle support 5 to adjust the pressurizing angle of the pressurizing mechanism 6.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which may be made by one of ordinary skill in the art within the spirit and scope of the present invention are also within the scope of the present invention.
Claims (9)
1. The utility model provides a bridge combination unit space model experimental apparatus, includes device support (1), driving motor I (2), supporting mechanism I (3), supporting mechanism II (4), angle support (5), loading system (6) and experiment bridge (7), its characterized in that: the device is characterized in that the driving motor I (2) is fixedly connected to the device support (1), a plurality of supporting mechanisms I (3) are arranged, one supporting mechanism I (3) is fixedly connected to the device support (1), a plurality of supporting mechanisms II (4) are arranged, the supporting mechanisms II (4) are respectively and fixedly connected between the supporting mechanisms I (3), the angle support (5) is connected to the device support (1) in a sliding mode, the angle support (5) is connected to an output shaft of the driving motor I (2) through threads, a pressurizing mechanism (6) is connected to the angle support (5) in a sliding mode, the pressurizing mechanism (6) and the angle support (5) are in meshing transmission, a plurality of experimental bridges (7) are fixedly connected with one another, the experimental bridges (7) form bridge units, the supporting mechanisms I (3) and the supporting mechanisms II (4) are combined into different clamping modes, and clamping the bridge unit.
2. The experimental device for the spatial model of the bridge combination unit according to claim 1, wherein: experiment bridge (7) are provided with two, and supporting mechanism I (3) are provided with threely, and supporting mechanism II (4) are provided with two, and two supporting mechanism II (4) set up between three supporting mechanism I (3), and two supporting mechanism II (4) and three supporting mechanism I (3) make up into different clamping modes and carry out the clamping to the bridge unit.
3. The experimental device for the spatial model of the bridge combination unit according to claim 2, wherein: the device support (1) comprises two supporting side plates (1-1), two connecting slide rails I (1-2) and two connecting slide rails II (1-3), wherein the two supporting side plates (1-1) are fixedly connected with the connecting slide rails I (1-2) between the two sides of the two supporting side plates (1-1), the two connecting slide rails I (1-2) are fixedly connected with the connecting slide rails II (1-3) on the outer sides, and the two connecting slide rails I (1-2) are fixedly connected with the driving motor I (2).
4. The experimental device for the spatial model of the bridge combination unit according to claim 3, wherein: supporting mechanism I (3) including promoting pneumatic cylinder I (3-1), sliding bottom I (3-2), supporting hydraulic cylinder I (3-3), plane backup pad (3-4) and right pneumatic cylinder I (3-5), fixedly connected with sliding bottom I (3-2) is served in the flexible of promoting pneumatic cylinder I (3-1), fixedly connected with supporting hydraulic cylinder I (3-3) is served in sliding bottom I (3-2), fixedly connected with plane backup pad (3-4) is served in the flexible of supporting hydraulic cylinder I (3-3), equal fixedly connected with on two sides of plane backup pad (3-4) rights pneumatic cylinder I (3-5).
5. The experimental device for the space model of the bridge combination unit according to claim 4, wherein: the supporting mechanism II (4) comprises a pushing hydraulic cylinder II (4-1), a sliding bottom plate II (4-2), a point supporting hydraulic cylinder (4-3), a righting underframe (4-4) and a righting hydraulic cylinder II (4-5), the telescopic end of the pushing hydraulic cylinder II (4-1) is fixedly connected with the sliding bottom plate II (4-2), the point supporting hydraulic cylinder (4-3) is fixedly connected onto the sliding bottom plate II (4-2), the middle part of the telescopic end of the point supporting hydraulic cylinder (4-3) is fixedly connected with the righting underframe (4-4), the righting hydraulic cylinders II (4-5) are fixedly connected onto two sides of the righting underframe (4-4), the pushing hydraulic cylinder I (3-1) positioned on the front side is fixedly connected onto the supporting side plate (1-1), and the two pushing hydraulic cylinders II (4-1) are respectively and fixedly connected onto the two sliding bottom plates I (3-2) And the other two pushing hydraulic cylinders I (3-1) are respectively and fixedly connected to the two sliding bottom plates II (4-2), the two sides of the three sliding bottom plates I (3-2) are respectively and slidably connected into the two connecting sliding rails I (1-2), and the two sides of the two sliding bottom plates II (4-2) are respectively and slidably connected into the two connecting sliding rails I (1-2).
6. The experimental device for the spatial model of the bridge combination unit according to claim 5, wherein: the angle support (5) comprises an arc support (5-1), arc grooves (5-2) and arc racks (5-3), two sides of the arc support (5-1) are connected to two connecting sliding rails II (1-3) in a sliding mode respectively, the arc grooves (5-2) are formed in the arc support (5-1), the arc racks (5-3) are fixedly connected to two sides of the arc support (5-1), two sides of the arc support (5-1) are connected to output shafts of two driving motors I (2) through threads respectively, and the circle centers of the arc racks (5-3) and the arc grooves (5-2) are overlapped.
7. The experimental device for the spatial model of the bridge combination unit according to claim 6, wherein: the pressurizing mechanism (6) comprises an arc sliding block (6-1), a driving motor II (6-2), a driving gear (6-3) and a pressurizing hydraulic cylinder (6-4), the arc sliding block (6-1) is connected in an arc groove (5-2) in a sliding mode, the driving motor II (6-2) is fixedly connected onto the arc sliding block (6-1), the driving gear (6-3) is fixedly connected onto an output shaft of the driving motor II (6-2), the driving gear (6-3) is in meshing transmission with an arc rack (5-3), and the pressurizing hydraulic cylinder (6-4) is fixedly connected to the lower end of the arc sliding block (6-1).
8. The experimental device for the spatial model of the bridge combination unit according to claim 7, wherein: the experimental bridge (7) comprises a shell bottom plate (7-1), beam units I (7-2), shell side plates (7-3), a shell top plate (7-4), beam units III (7-6), bridge deck side plates (7-7), connecting clamping plates (7-8) and bridge deck connecting plates (7-9), wherein the two sides of the shell bottom plate (7-1) are fixedly connected with the beam units I (7-2), the two beam units I (7-2) are fixedly connected with the shell side plates (7-3), the two shell side plates (7-3) are fixedly connected with the shell side plates (7-3), the outer sides of the two beam units III (7-6) are fixedly connected with the bridge deck side plates (7-7), and the shell top plate (7-4) is fixedly connected between the two beam units III (7-6), the experimental bridges (7) are arranged in a plurality, the upper ends of two adjacent experimental bridges (7) are connected through connecting splints (7-8), and the middle parts of two adjacent experimental bridges (7) are connected through a plurality of bridge deck connecting plates (7-9).
9. The experimental device for the spatial model of the bridge combination unit according to claim 8, wherein: the experimental bridge (7) further comprises two beam units II (7-5), the number of the shell bottom plates (7-1) is two, the number of the beam units I (7-2) is three, the number of the shell side plates (7-3) is three, the number of the shell top plates (7-4) is two, the number of the bridge deck side plates (7-7) is two, the shell side plate (7-3) in the middle is fixedly connected with the beam units II (7-5), and the two shell side plates (7-3) on two sides of displacement are fixedly connected with the beam units III (7-6).
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| CN112365787B (en) * | 2020-11-09 | 2022-04-01 | 张前进 | Assembled bridge design model |
| CN114441333B (en) * | 2022-04-11 | 2022-06-21 | 深圳市中航环海建设工程有限公司 | Highway subgrade fixed-point compression pressure measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6918306B1 (en) * | 2003-09-08 | 2005-07-19 | The United States Of America As Represented By The Secretary Of The Navy | Adjustable flexure loading apparatus for testing long span beams |
| CN203275108U (en) * | 2013-05-29 | 2013-11-06 | 宁波大学 | A bridge model static force loading device |
| CN104280297A (en) * | 2014-09-23 | 2015-01-14 | 同济大学 | Counterforce beam loading device and loading method for static load test of bridge beam body |
| CN205879566U (en) * | 2016-10-15 | 2017-01-11 | 山西省交通科学研究院 | Bridge static loading equipment based on parallel mechanism |
-
2020
- 2020-01-18 CN CN202010058181.9A patent/CN111257120B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6918306B1 (en) * | 2003-09-08 | 2005-07-19 | The United States Of America As Represented By The Secretary Of The Navy | Adjustable flexure loading apparatus for testing long span beams |
| CN203275108U (en) * | 2013-05-29 | 2013-11-06 | 宁波大学 | A bridge model static force loading device |
| CN104280297A (en) * | 2014-09-23 | 2015-01-14 | 同济大学 | Counterforce beam loading device and loading method for static load test of bridge beam body |
| CN205879566U (en) * | 2016-10-15 | 2017-01-11 | 山西省交通科学研究院 | Bridge static loading equipment based on parallel mechanism |
Non-Patent Citations (2)
| Title |
|---|
| 基于静力响应面的混凝土梁桥有限元模型修正;代汉超 等;《交通科学与工程》;20130630;第29卷(第2期);41-45 * |
| 小跨径板梁桥承载力快速评定模型研究;吴桂林 等;《公路》;20140630(第6期);321-324 * |
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