CN212270660U - Novel self-adjusting support structure system suitable for movable bridge - Google Patents
Novel self-adjusting support structure system suitable for movable bridge Download PDFInfo
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- CN212270660U CN212270660U CN202021804617.6U CN202021804617U CN212270660U CN 212270660 U CN212270660 U CN 212270660U CN 202021804617 U CN202021804617 U CN 202021804617U CN 212270660 U CN212270660 U CN 212270660U
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Abstract
The utility model discloses a novel self-adjusting support structure system suitable for a movable bridge, which comprises a left support and a right support which can axially extend and retract, wherein the supports comprise an upper extension half part and a lower extension half part which are mutually butted and assembled to form a structure capable of moving relatively; the cylinder body formed between the lower telescopic half part and the upper telescopic half part is filled with hydraulic oil, and the cylinder bodies of the left support and the right support are connected through a pressure-resistant communication pipeline to form a communication structure in which the hydraulic oil can freely flow. The utility model discloses an axial of adjustment activity bridge expansion end both sides support is flexible, keeps having the pressure of hydraulic oil body in the two support cylinder bodies to equal basically to guarantee that the support can self-adjust in order to be suitable for the relative potential difference that becomes of substructure on the bridge, provide the relatively balanced holding power in upper portion bridge both sides, guarantee that the activity bridge has the atress performance basically the same with fixed bridge, guarantee bridge superstructure's safe atress performance and use comfort.
Description
Technical Field
The utility model relates to a bridge construction engineering technical field especially relates to a be suitable for self-adjusting support structure system of activity bridge.
Background
In municipal bridge engineering, in some special cases, movable bridges, namely open bridges, are adopted. For example, the Guangzhou city wine grape bright bridge is designed to reduce the removal of buildings in the existing urban area and reduce the elevation of a bridge floor, so that the bridge is directly connected with river-following roads at both sides of the bridge head in the elevation, and meanwhile, a vertical lift type open bridge is adopted in the bridge design in order to keep the navigation function of the river spanned by the bridge. When a large ship needs to be allowed to pass, the bridge opening span needs to be vertically lifted to a certain height, and the passing clearance requirement of the large ship is met. When the large ship does not pass through and needs land traffic communication, the bridge needs to descend to the lowest position to communicate land traffic on both sides. Therefore, for a vertical lift type open bridge, the bridge support on the abutment needs to be separated from the upper structure of the bridge when the bridge is opened, and needs to be in contact with the upper structure of the bridge and support the upper structure of the bridge when the bridge is closed.
In addition, in some wharf ferry projects, a movable bridge, namely a floating bridge, is often arranged for connecting a wharf platform floating in water with a shore-connecting road. In general, the shore-connecting end of the floating bridge adopts a fixed-position but rotatable support structure, and the floating bridge at the water end is generally placed on a ship floating body, and the end can move along with the ship floating body.
The use conditions of the support systems of the vertical lifting type open bridge and the floating bridge are different from the conditions of a bridge support for fixing the bridge, the upper structure and the lower structure of the bridge connected with the support are relatively changed, and in the closing process of the open bridge and the movement of the floating bridge along with the floating body of a supporting ship, the upper structure and the lower structure of the bridge are relatively changed in the two sides of one end of the bridge, so that the stress performance and the use comfort of the upper structure of the bridge are influenced.
At present, for fixed bridges, a plurality of formed and mature bridge support products exist, but for movable bridge supports, the existing cases are not many, so that a self-adjusting support system suitable for the movable bridges is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is defect to prior art existence, provide one kind and conveniently implement, can be suitable for the self-adjusting support system of activity bridge (open bridge and pontoon bridge like the formula of directly rising), it is according to the linker principle, through the axial flexible of adjustment activity bridge expansion end both sides support, the pressure that has the hydraulic oil body in the both sides support cylinder body of keeping the expansion end is basically equal, thereby guarantee that the support can self-adjust in order to be suitable for the relative potential difference of substructure on the bridge, provide upper portion bridge both sides with relative balanced bearing capacity, guarantee that the activity bridge has the atress performance basically the same with fixed bridge, so under the condition that does not change bridge construction, ensure bridge superstructure's safe atress performance and use comfort.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a novel self-adjusting support structure system suitable for travelling bridge which characterized in that: the support comprises a left support and a right support which can axially stretch out and draw back, the support comprises a telescopic upper half part and a telescopic lower half part, and the telescopic upper half part and the telescopic lower half part are mutually butted and assembled to form a structure capable of moving relatively; hydraulic oil bodies are arranged in cylinder bodies formed between the lower telescopic half part and the upper telescopic half part, the cylinder bodies of the left support and the right support are connected through a pressure-resistant communication pipeline to form a communication structure in which the hydraulic oil bodies can freely flow, and the hydraulic oil bodies flow from the cylinder bodies with increased pressure to the cylinder bodies with decreased pressure until the pressure at the same horizontal plane is equal; rubber supports are fixed on the upper telescopic halves of the two supports, and the bottom of the upper structure of the movable end of the movable bridge is placed on the rubber supports to form a structure for simultaneously supporting the movable end of the movable bridge through the left support and the right support; the telescopic lower half part is fixed on a pier structure for supporting a bridge or a (ship body) floating body structure for supporting the bridge.
Furthermore, the telescopic lower half part and the telescopic upper half part are combined into an axially telescopic sealing structure cylinder body, and the inside of the cylinder body is filled with hydraulic oil.
Furthermore, the telescopic upper half part comprises a piston end steel plate and a piston body, the piston end steel plate is fixed at the top end of the piston body and is connected with the piston body to form an integral structure, and the lower part of the piston body is inserted into the telescopic lower half part; the rubber support is fixed on the steel plate at the end of the piston; the piston body is provided with an exhaust hole which is communicated with the cylinder body of the support and the external space, but the self-adjusting support structure system is closed when in working state, so that the hydraulic oil in the cylinder bodies at two sides can keep the same pressure as the pressure at the horizontal plane.
Furthermore, the telescopic lower half part comprises a piston cylinder body and a cylinder bottom steel plate, the piston cylinder body and the cylinder bottom steel plate are connected into an integral structure, and the cylinder bottom steel plate is fixed on a pier structure of a supporting bridge or a floating body structure of the supporting bridge; the piston body is inserted into the cylinder body of the piston cylinder, and the lower end of the piston body and the cylinder body of the piston cylinder form a cylinder body for filling hydraulic oil; the lower part of the side wall of the cylinder body of the piston cylinder is provided with an oil filling hole and an outer extending pipe, a pressure-resistant communicating pipeline of the cylinder body of the piston cylinder connecting the left support and the right support comprises a flexible communicating pipe, two ends of the communicating pipe are respectively connected and fixed with the outer extending pipe, the outer extending pipe is provided with a valve, and the oil filling hole is required to be kept airtight except for the support assembling and modulating stage.
Preferably, the rubber support is a conventional plate type rubber support for a bridge, which meets the national traffic industry standard 'specification series of highway bridge plate type rubber support' JT/T663, and the specification and the size of the rubber support are determined by the vertical force and the relative horizontal deformation which need to be borne by the support.
Preferably, the cylinder bottom steel plate, the piston cylinder body, the piston end steel plate and the piston body are all made of Q235 carbon structural steel or Q355 low alloy steel.
Furthermore, the contact surface between the piston body and the cylinder body of the piston cylinder is subjected to surface smoothing treatment so that the piston body and the cylinder body of the piston cylinder are tightly attached after being installed, and the sealing and oil leakage can be guaranteed under the using pressure of the oil cylinder.
Preferably, the piston body is cylindrical, and the piston cylinder body is cylindrical; the steel plate at the end of the piston is square or round, and the upper plane and the lower plane of the steel plate are not smaller than the space required by the arrangement of the rubber support and the piston body respectively; the cylinder bottom steel plate is square or round, and the upper plane and the lower plane of the cylinder bottom steel plate are not smaller than the space required by arrangement of the piston cylinder body and connection with the bridge lower structure.
Preferably, the bottom surface of the rubber support and the steel plate at the end of the piston are adhered and fixed by epoxy resin glue.
The utility model can determine the size of the oil cylinder by selecting the design expansion amount of the telescopic support and the pressure capacity which can be born by the comprehensive oil cylinder after calculation according to the fulcrum counter force received by the movable end of the movable bridge and the relative displacement between the upper and lower components of the movable end bridge; then processing and manufacturing the telescopic upper half part and the telescopic lower half part of the support according to the parameters in a factory, assembling the upper half part and the lower half part, and injecting a proper amount of hydraulic oil into a cavity between the upper half part and the lower half part to jointly form a hydraulic oil cylinder structure capable of bearing pressure and stretching; selecting a conventional plate type rubber support with bearing capacity and displacement meeting the requirements according to the stress requirements, fixing hydraulic oil cylinder structures of a left telescopic support and a right telescopic support according to the arrangement requirements of the movable bridge support on site, and installing the conventional plate type rubber support at the upper part of the conventional plate type rubber support to connect hydraulic oil cylinders of the two telescopic supports by a pressure-resistant pipeline; then, the upper bridge structure is installed with the assistance of the temporary support, and finally, the self-adjusting support structure system suitable for the movable bridge reaches an initial balance state through oil injection (or oil discharge) of the oil injection hole and gradual release of the adjustment mode of the temporary support, and then the movable bridge starts to work normally.
The utility model discloses according to the linker principle, through the axial of adjustment movable bridge expansion end both sides support flexible, the pressure that has the hydraulic oil body in the both sides support cylinder body of keeping the expansion end equals basically, thereby guarantee that the support can be from the relative potential difference that becomes of adjustment in order to be suitable for substructure on the bridge, provide upper portion bridge both sides with the bearing force of relative equilibrium, guarantee that the movable bridge has the atress performance basically the same with fixed bridge, under the condition that does not change bridge construction, guarantee bridge superstructure's safe atress performance and use comfort.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the working principle of the present invention applied to a movable bridge corresponding to a vertical lift type open bridge;
fig. 3 is the utility model discloses be applied to the theory of operation sketch map that one end is fixed at pier, the other end and is supported the pontoon bridge correspondence activity bridge on the body.
In the figure, 1 is a rubber support, 2 is a telescopic upper half part, 21 is a piston end steel plate, 22 is a piston body, 23 is an exhaust hole, 3 is a hydraulic oil body, 4 is a telescopic lower half part, 41 is a piston cylinder body, 42 is a cylinder bottom steel plate, 43 is an oil filling hole, 5 is a pressure-resistant communicating pipeline, 51 is an outer extension pipe, and 52 is a communicating pipe.
Detailed Description
The invention will be further explained by means of specific embodiments with reference to the accompanying drawings:
in this embodiment, referring to fig. 1 to fig. 3, the novel self-adjusting support structure system suitable for a movable bridge includes two supports (a left support and a right support) capable of axially extending and retracting at left and right positions, where the supports include an upper telescopic half 2 and a lower telescopic half 4, and the upper telescopic half 2 and the lower telescopic half 2 are butt-jointed and assembled with each other to form a structure capable of moving relatively; hydraulic oil bodies 3 are filled in cylinder bodies formed between the telescopic lower half part 4 and the telescopic upper half part 2, the cylinder bodies of the left support and the right support are connected into a communication structure in which the hydraulic oil bodies 3 can freely flow through a pressure-resistant communication pipeline 5, and the hydraulic oil bodies 3 flow from the cylinder bodies with increased pressure to the cylinder bodies with decreased pressure until the pressure at the same horizontal plane is equal; rubber supports are fixed on the telescopic upper half parts 2 of the two supports, and the bottom of the upper structure of the movable end of the movable bridge is placed on the rubber supports 1 to form a structure for simultaneously supporting the movable end of the movable bridge through the left support and the right support; the telescopic lower half part 4 is fixed on a pier structure for supporting a bridge or a (ship body) floating body structure for supporting the bridge.
The telescopic lower half part 4 and the telescopic upper half part 2 are combined into an axially telescopic sealing structure cylinder body, and the inside of the cylinder body is filled with hydraulic oil bodies 3.
The telescopic upper half part 2 comprises a piston end steel plate 21 and a piston body 22, the piston end steel plate 21 is fixed at the top end of the piston body 22 and is connected with the piston body 22 to form an integral structure, and the lower part of the piston body 22 is inserted into the telescopic lower half part 4; the rubber support 1 is fixed on a steel plate 21 at the end of the piston; the piston body 22 is provided with an exhaust hole 23, the cylinder body of the support is communicated with the external space through the exhaust hole 23, but the self-adjusting support structure system is closed when in a working state, so that the hydraulic oil in the cylinder bodies at two sides can keep the same pressure at the same level.
The telescopic lower half part 4 comprises a piston cylinder body 41 and a cylinder bottom steel plate 42, the piston cylinder body 41 and the cylinder bottom steel plate 42 are connected into an integral structure, and the cylinder bottom steel plate 42 is fixed on a pier structure of a supporting bridge or a floating body structure of the supporting bridge; the piston body 22 is inserted into the piston cylinder body 41, and a cylinder body for containing the hydraulic oil body 3 is formed by the lower end of the piston body 22 and the piston cylinder body 41; an oil filling hole 43 and an outer extension pipe 51 are arranged at the lower part of the side wall of the piston cylinder body 41, a pressure-resistant communication pipeline 5 of the piston cylinder body 41 connected with the left support and the right support comprises a flexible communication pipe 52, two ends of the communication pipe 52 are respectively connected and fixed with the outer extension pipe 51, and a valve is arranged on the outer extension pipe.
The rubber support 1 is a conventional plate type rubber support for the bridge, which meets the standard of China national traffic industry Standard (Standard series of Standard of plate type rubber supports for road bridges) (JT/T663), and the specification and the size of the conventional plate type rubber support are determined by the vertical force and the relative horizontal deformation which are born by the support.
The cylinder bottom steel plate 42, the cylinder body 41 of the piston cylinder, the piston end steel plate 21 and the piston body 22 are all made of Q235 carbon structural steel or Q355 low alloy steel.
The contact surface between the piston body 22 and the cylinder body 41 of the piston cylinder is subjected to surface smoothing treatment so that the piston body and the cylinder body are tightly attached after being installed, and the oil tightness of the oil cylinder can be ensured under the using pressure of the oil cylinder.
The piston body 22 is cylindrical, and the cylinder body 41 of the piston cylinder is cylindrical; the piston end steel plate 21 is square or round, and the upper plane and the lower plane of the piston end steel plate are not smaller than the space required by the arrangement of the rubber support 1 and the piston body 22 respectively; the cylinder bottom steel plate 42 is square or round, and the upper and lower planes thereof are not less than the space required for arranging the piston cylinder body 41 and connecting with the bridge lower structure.
The bottom surface of the rubber support 1 and the piston end steel plate 21 are fixed by epoxy resin glue.
The self-adjusting support structure system is implemented as follows:
firstly, according to the use requirements and various stress working conditions of the movable bridge, calculating and analyzing the vertical bearing capacity and the horizontal deformation required by two supports at the movable end of the bridge and the possible relative difference of vertical displacement of the lower structure of the bridge at the positions of the two supports, and using the vertical bearing capacity and the horizontal deformation as the design control parameters of the self-adjusting support system.
Secondly, selecting a conventional plate type rubber support 1 of the bridge with a proper specification according to the parameters, designing and determining the size and material requirements of the telescopic upper half part 2 and the telescopic lower half part 4 of the support according to the size, the vertical bearing capacity required by the support and the possible vertical relative displacement difference of the upper lower part structure of the bridge at the position of the support, and manufacturing the telescopic upper half part 2 and the telescopic lower half part 4 in a mechanical factory.
And thirdly, assembling the telescopic upper half part 2 and the telescopic lower half part 4, and injecting a hydraulic oil body 3 to form two hydraulic oil cylinder structures.
Fourthly, mounting two qualified hydraulic cylinder structures consisting of the telescopic upper half part 2 of the support, the telescopic lower half part 4 of the support and the hydraulic oil body 3 manufactured in a factory and the purchased conventional slab rubber support 1 of the bridge on site, firstly, fixedly connecting the cylinder bottom steel plate 42 with the lower part structure of the bridge, connecting a pressure-resistant communication pipeline 5 to enable the hydraulic oil bodies 3 of the two hydraulic cylinder structures to be communicated, placing the conventional slab rubber support 1 of the bridge on the hydraulic cylinder structures, setting a temporary support for erecting a movable bridge, finally, adjusting the amount of the hydraulic oil body 3 in the hydraulic cylinder structures through an oil filling hole 43, then, gradually removing the temporary support, leveling the self-adjusting support structure system and enabling the self-adjusting support structure system to reach an initial balance state.
Fifthly, opening the opening and closing process of the movable bridge, and automatically working the self-adjusting support structure system; when the novel floating bridge is applied to the floating bridge, the self-adjusting support structure system automatically works along with the swinging of the ship floating body at the lower part.
The working principle applied to the corresponding movable bridge of the vertical lifting type open bridge is explained as follows:
1. when the bridge is opened, the conventional plate-type rubber support 1 of the bridge is directly laid on the upper structure of the bridge, and when the bridge is opened and lifted, the rubber support 1 can be automatically separated from the movable end of the upper bridge structure.
2. When the bridge descends and closes each time, the beam end (movable end) of the bridge is influenced by various factors, and the relative distance between the two support positions at the same end of the beam and the conventional plate type rubber support 1 of the bridge has a certain amount of difference, so as to explain the working principle, the following assumptions are made: the vertical bearing capacity of the two supports in the initial balance state is the same, the specifications of the supports are the same, the liquid level height of the hydraulic oil body 3 is the same horizontal plane, in a certain closing process, the position of the right support descends quickly, and the closing process is described.
3. According to the assumption, when the bridge superstructure is in contact with the conventional plate-type rubber support 1 of the bridge at the right support and applies pressure to the hydraulic oil cylinder of the right support, the bridge superstructure is not in contact with the conventional plate-type rubber support 1 of the bridge at the left support, so that the pressure of the hydraulic oil body 3 in the oil cylinder of the right support is increased and is greater than the pressure of the hydraulic oil body 3 in the oil cylinder of the left support, and the hydraulic oil body in the right support flows to the oil cylinder of the left support through the pressure-resistant communication pipeline 5 and reaches a new balance.
4. The new equilibrium state described in 3 above is: the height of the left support saddle is raised by h1, the height of the right support saddle is lowered by h2, (h1+ h2) is just the difference of the relative distances of the lower structures on the bridge at the same end of the beam at the positions of the two support saddles, and the liquid level height difference of the hydraulic oil bodies 3 in the two support oil cylinders is (h1+ h 2).
5. According to the pressure principle of the communicating vessel, the difference F of the supporting force provided by the left support and the right support to the upper structure is as follows: f is the volume weight of the hydraulic oil body 3 multiplied by the sectional area of the steel piston 22 multiplied by (h1+ h2), and because the absolute value of (h1+ h2) is relatively small and the difference of the supporting force is small, the self-adjustment of the support is achieved, so that the relative variation difference of the upper and lower structures of the bridge is suitable, and the relatively balanced supporting force is provided for the two sides of the upper bridge.
The working principle explanation applied to the floating bridge with one end fixed on the pier and the other end supported on the floating body corresponds to the movable bridge is as follows:
s1, the floating bridge is supported at one end of the ship floating body, and the support structure follows the movement along with the up-and-down floating and swinging of the ship floating body.
S2, under the swing action of the ship floating body, the relative distance between the upper lower structure and the lower structure of the two supports at the bridge position has certain difference between the two support positions at the same end of the beam and the conventional plate type rubber support 1 of the bridge, and for convenience of explaining the working principle, the following assumptions are made: the difference of the relative distance is preliminarily controlled, the magnitude of the difference is not large, the vertical bearing capacity of the two supports in the initial balance state is the same, the specifications of the supports are the same, the liquid level height of the hydraulic oil body 3 is the same horizontal plane, and the relative distance between the upper part and the lower part of the bridge at the position of the right support is in an increasing state in the swinging process of the ship floating body at a certain time.
S3, supposing that the swing of the ship floating body drives the cylinder bottom steel plate 42 at the lower part of the support at the left support position to rise, and the cylinder bottom steel plate 42 of the right support to fall, so that the initial balance is destroyed, because the oil cylinder of the left support can be compressed forcibly, the pressure of the hydraulic oil body 3 in the oil cylinder is increased, and the hydraulic oil body flows to the oil cylinder of the right support through the pressure-resistant communication pipeline 5, and reaches a new balance.
S4, the new equilibrium state of S3 is: the height of the oil cylinder compression h1 of the left support, the height of the oil cylinder extension h2 of the right support and the value of (h1+ h2) are just the relative difference of the heights of the bottom steel plates 42 of the two supports, and the liquid level heights of the hydraulic oil bodies 3 in the oil cylinders of the two supports are maintained at the same horizontal plane.
According to the pressure principle of the communicating vessel, the left support and the right support are aligned with each other through the flow of hydraulic oil bodies in the oil cylinders until the liquid level is flush, and the pressure on the top surface of the liquid level is consistent, so that the floating bridge is self-adjusted through the supports to adapt to the relative height difference of a ship floating body structure at the lower part of the bridge and provides balanced supporting force for two sides of the movable end of the upper bridge, thereby ensuring that the movable bridge has the basically same stress performance as the fixed bridge.
The above detailed description of the present invention is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto, i.e. all equivalent changes and modifications made in accordance with the scope of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides a novel self-adjusting support structure system suitable for travelling bridge which characterized in that: the support comprises a left support and a right support which can axially stretch out and draw back, the support comprises a telescopic upper half part and a telescopic lower half part, and the telescopic upper half part and the telescopic lower half part are mutually butted and assembled to form a structure capable of moving relatively; hydraulic oil bodies are arranged in cylinder bodies formed between the telescopic lower half part and the telescopic upper half part, and the cylinder bodies of the left support and the right support are connected through a pressure-resistant communication pipeline to form a communication structure in which the hydraulic oil bodies can freely flow; rubber supports are fixed on the upper telescopic halves of the two supports, and the bottom of the upper structure of the movable end of the movable bridge is placed on the rubber supports to form a structure for simultaneously supporting the movable end of the movable bridge through the left support and the right support; the telescopic lower half part is fixed on a pier structure of a supporting bridge or a floating body structure of the supporting bridge.
2. The new self-adjusting seat structure system for mobile bridges of claim 1, wherein: the telescopic lower half part and the telescopic upper half part are combined into an axially telescopic sealing structure cylinder body, and the inside of the cylinder body is filled with hydraulic oil.
3. The new self-adjusting seat structure system for mobile bridges of claim 2, characterized in that: the telescopic upper half part comprises a piston end steel plate and a piston body, the piston end steel plate is fixed at the top end of the piston body and is connected with the piston body to form an integral structure, and the lower part of the piston body is inserted into the telescopic lower half part; the rubber support is fixed on the steel plate at the end of the piston; the exhaust hole is arranged in the piston body and is communicated with the cylinder body of the support and the external space through the exhaust hole, but the exhaust hole is closed when the self-adjusting support structure system is in a working state.
4. The new self-adjusting seat structure system for mobile bridges of claim 3, wherein: the telescopic lower half part comprises a piston cylinder body and a cylinder bottom steel plate, the piston cylinder body and the cylinder bottom steel plate are connected into an integral structure, and the cylinder bottom steel plate is fixed on a pier structure of a supporting bridge or a floating body structure of the supporting bridge; the piston body is inserted into the cylinder body of the piston cylinder, and the lower end of the piston body and the cylinder body of the piston cylinder form a cylinder body for filling hydraulic oil; the lower part of the side wall of the cylinder body of the piston cylinder is provided with an oil filling hole and an outer extension pipe, a pressure-resistant communicating pipeline of the cylinder body of the piston cylinder for connecting the left support and the right support comprises a flexible communicating pipe, two ends of the communicating pipe are respectively connected and fixed with the outer extension pipe, and the outer extension pipe is provided with a valve.
5. The new self-adjusting seat structure system for mobile bridges of claim 1, wherein: the rubber support is a rubber support which meets the China national traffic industry standard JT/T663.
6. The new self-adjusting seat structure system for mobile bridges of claim 4, wherein: the cylinder bottom steel plate, the piston cylinder body, the piston end steel plate and the piston body are all made of Q235 carbon structural steel or Q355 low alloy steel.
7. The new self-adjusting seat structure system for mobile bridges of claim 3, wherein: the contact surface between the piston body and the piston cylinder body is subjected to surface smoothing treatment so that the piston body and the piston cylinder body are tightly attached after being installed.
8. The new self-adjusting seat structure system for mobile bridges of claim 6, wherein: the piston body is cylindrical, and the cylinder body of the piston cylinder is cylindrical; the steel plate at the end of the piston is square or round, and the upper plane and the lower plane of the steel plate are not smaller than the space required by the arrangement of the rubber support and the piston body respectively; the cylinder bottom steel plate is square or round, and the upper plane and the lower plane of the cylinder bottom steel plate are not smaller than the space required by arrangement of the piston cylinder body and connection with the bridge lower structure.
9. The new self-adjusting seat structure system for mobile bridges of claim 3, wherein: the bottom surface of the rubber support and the piston end steel plate are adhered and fixed by epoxy resin glue.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494048A (en) * | 2021-08-02 | 2021-10-12 | 淮南市公路管理局直属分局 | Anti-seismic device for highway bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494048A (en) * | 2021-08-02 | 2021-10-12 | 淮南市公路管理局直属分局 | Anti-seismic device for highway bridge |
| CN113494048B (en) * | 2021-08-02 | 2022-11-15 | 淮南市公路管理局直属分局 | Anti-seismic device for highway bridge |
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