Assembled bridge seat of moving away to avoid possible earthquakes
Technical Field
The invention belongs to the technical field of bridges, and relates to an assembled bridge shock absorption seat.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge head butt straps, conical revetments, bank protection and diversion engineering.
With the rapid advance of the construction engineering technology in China, the construction technology of the bridge with higher construction difficulty is improved day by day, the bridge construction engineering not only needs high strength and good structural connectivity, but also needs to have certain damping performance, but the existing bridge design still has design defects in the aspect of earthquake resistance, the ductility of the bridge is poor, meanwhile, the transverse and longitudinal displacement damping and buffering effects of the bridge on the bridge body are poor, and the movement range of the damping is small, so that an assembly type bridge shock absorption seat is provided for solving the problems.
Disclosure of Invention
In view of the above, the present invention provides an assembled type shock absorbing seat for a bridge, which is used to solve the problems of poor damping effect of the bridge on the transverse and longitudinal displacements and small movement range of the bridge.
In order to achieve the purpose, the invention provides an assembly type bridge shock absorption seat, which comprises a fixedly arranged ground installation seat and a mounting groove arranged on the ground, wherein a bridge is fixedly poured on the top of the installation seat, a shock absorption seat is fixedly poured on the inner wall of the bottom of the mounting groove, a shock absorption groove is formed in the top of the shock absorption seat, the inner walls of two sides of the shock absorption groove are slidably connected with the same shock absorption partition plate, the top of the shock absorption partition plate is slidably connected with two symmetrically arranged L-shaped fixing plates, the bottom of the installation seat is fixedly provided with two symmetrically arranged vertical plates which are respectively attached to the two L-shaped fixing plates, the vertical plates and the L-shaped fixing plates are in threaded connection with the same fixing bolt, one side, close to each other, of the two L-shaped fixing plates is fixedly connected with the same limiting component, and the bottom of the, rotate on the shock attenuation baffle and be connected with two ball screw that the symmetry set up, and two ball screw run through two screw-nut respectively and with two screw-nut threaded connection, the bottom fixed mounting of shock attenuation baffle has a plurality of spring damper, and spring damper's bottom and the bottom inner wall fixed connection of shock attenuation groove, equal lateral sliding connection has the slider on the both sides inner wall of shock attenuation groove, and the bottom fixed mounting of slider has the attenuator, the bottom of two attenuators respectively with two L shape fixed plate fixed connection.
The principle of the basic scheme is as follows: when the bridge vibrates, the bridge can generate longitudinal displacement, at the same time, the bridge can press the mounting seat to perform longitudinal displacement, and further, the damping bolt can be firstly compressed, and can damp the longitudinal movement of the mounting seat, and the mounting seat can simultaneously drive the L-shaped fixing plate to perform longitudinal movement, and the L-shaped fixing plate can make the damper and the spring damper deform, so that under the condition of common cooperation of the damper and the spring damper, the damping and buffering effect on the longitudinal movement of the bridge can be greatly improved, and when the bridge transversely moves, the mounting seat is driven to also transversely move, and under the condition of transverse limit of the damping bolt, once the mounting seat needs to generate larger transverse movement, the damping bolt can be broken, and the damping bolt is easy to replace, so that the integral structure of the bridge cannot be influenced, and at the time, when the mounting seat can drive the L-shaped fixing plate to transversely move, the L-shaped fixing plate can enable the limiting rod and the buffer hydraulic rod to deform, the buffer hydraulic rod can vibrate the transverse movement of the bridge, and meanwhile, the L-shaped fixing plate can drive the screw nut to slide on the ball screw when moving, so that the transverse movement of the bridge can be limited under the damping of the screw nut and the ball screw.
The beneficial effect of this basic scheme lies in: the invention can buffer the transverse displacement and the longitudinal displacement of the bridge in all directions when the bridge vibrates, enlarges the buffer moving range of the bridge, and simultaneously greatly enhances the buffer performance of the bridge, thereby having larger market promotion prospect.
Further, spacing subassembly includes that two gag lever posts are fixed mounting respectively in one side that two L shape fixed plates are close to each other, and the one side slip cover that two gag lever posts are close to each other is equipped with same buffering sleeve, and one side fixed mounting that two gag lever posts are close to each other has same buffering hydraulic stem, buffering sleeve's bottom and the top fixed connection of shock attenuation baffle, beneficial effect: utilize spacing subassembly can be so that two L shape fixed plates when atress remove, be in same horizontal direction all the time.
Further, equal threaded connection has shock bolts on the four corners position of mount pad, and the mount pad passes through shock bolts fixed mounting subaerial, beneficial effect: the damping bolt can be used for improving the effect of limiting and buffering the longitudinal displacement of the bridge.
Further, equal fixed mounting has the slide bar on the both sides inner wall of mounting groove, and two slide bars run through two sliders respectively and with slider sliding connection, beneficial effect: the sliding rod can ensure that the sliding block does not deviate when moving transversely.
Further, spring damper's quantity is three to six, and on three to the bottom inner wall of the shock attenuation groove that six spring damper equidistance were arranged, beneficial effect: the spring shock absorber can be used for effectively buffering and protecting the longitudinal displacement of the bridge.
Further, last cover of shock attenuation bolt is equipped with damping spring and shock absorber gasket, and the mount pad is located between damping spring and the shock absorber gasket, beneficial effect: the elastic resetting capability of the damping bolt can be improved by utilizing the damping spring and the damping gasket.
Further, fixed mounting has linear bearing on the slider, the slide bar run through linear bearing and with linear bearing's inner circle sliding connection, beneficial effect: the sliding friction force of the sliding block and the sliding rod can be reduced by utilizing the linear bearing.
The invention has the beneficial effects that:
when the bridge vibrates, the bridge can generate longitudinal displacement, the bridge can press the mounting seat to perform longitudinal displacement at the moment, the damping bolt can be firstly compressed, the damping bolt can damp the longitudinal movement of the mounting seat, the mounting seat can simultaneously drive the L-shaped fixing plate to perform longitudinal movement, and the damper and the spring damper can be deformed by the L-shaped fixing plate, so that the damping and buffering effects during the longitudinal movement of the bridge can be greatly improved under the common cooperation of the damper and the spring damper;
and when the bridge took place lateral shifting, it also carries out lateral shifting to drive the mount pad, and under the shock bolt horizontal spacing, in case the mount pad need take place great lateral shifting, then can break the shock bolt, and the shock bolt is easily changed, therefore can not influence the overall structure of bridge, and when the mount pad can drive L shape fixed plate and carry out lateral shifting this moment, L shape fixed plate can make gag lever post and buffer hydraulic stem take place deformation, the buffer hydraulic stem then can vibrate the lateral shifting of bridge, also can drive screw-nut when L shape fixed plate removes and slide on ball screw simultaneously, therefore under screw-nut and ball screw's damping, can carry out spacingly to the lateral shifting of bridge.
The invention can buffer the transverse displacement and the longitudinal displacement of the bridge in all directions when the bridge vibrates, enlarges the buffer moving range of the bridge, and simultaneously greatly enhances the buffer performance of the bridge, thereby having larger market promotion prospect.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of an overall structure of an assembled type suspension base for a bridge according to an embodiment of the present invention;
FIG. 2 is a schematic partial structural view of an assembled type suspension base for a bridge according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of part A of an assembled bridge suspension according to an embodiment of the present invention.
In the figure: the damping device comprises a mounting seat 1, a damping bolt 2, a bridge 3, a mounting groove 4, a damping seat 5, a damping groove 6, a vertical plate 7, an L-shaped fixing plate 8, a damping partition plate 9, a screw nut 10, a ball screw 11, a spring damper 12, a sliding block 13, a damper 14, a limiting rod 15, a buffer sleeve 16 and a buffer pressure rod 17.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example 1
As shown in figures 1-3, an assembled bridge shock-absorbing seat comprises a fixed installation seat 1 and an installation groove 4, wherein the installation seat 1 is arranged on the ground, a bridge 3 is fixedly poured on the top of the installation seat 1, a shock-absorbing seat 5 is fixedly poured on the inner wall of the bottom of the installation groove 4, a shock-absorbing groove 6 is arranged on the top of the shock-absorbing seat 5, the inner walls of two sides of the shock-absorbing groove 6 are slidably connected with a same shock-absorbing partition plate 9, the top of the shock-absorbing partition plate 9 is slidably connected with two symmetrically-arranged L-shaped fixing plates 8, the bottom of the installation seat 1 is fixedly provided with two symmetrically-arranged vertical plates 7, the two vertical plates 7 are respectively attached to the two L-shaped fixing plates 8, the vertical plates 7 and the L-shaped fixing plates 8 are in threaded connection with a same fixing bolt, one side of the two L-shaped fixing plates 8 close, the vibration damping partition plate 9 is rotatably connected with two ball screws 11 which are symmetrically arranged, the two ball screws 11 respectively penetrate through the two screw nuts 10 and are in threaded connection with the two screw nuts 10, the bottom of the vibration damping partition plate 9 is fixedly provided with a plurality of spring dampers 12, the bottoms of the spring dampers 12 are fixedly connected with the inner wall of the bottom of the vibration damping groove 6, the inner walls of the two sides of the vibration damping groove 6 are respectively and transversely connected with a sliding block 13 in a sliding manner, the bottom of the sliding block 13 is fixedly provided with a damper 14, and the bottoms of the two dampers 14 are respectively and fixedly connected with the two L-shaped fixing plates 8.
Example 2
Example 2 is further improved on the basis of example 1: the limiting assembly comprises two limiting rods 15 which are respectively fixedly arranged at one side of two L-shaped fixing plates 8 which are close to each other, one side of the two limiting rods 15 which are close to each other is slidably sleeved with a same buffer sleeve 16, one side of the two limiting rods 15 which are close to each other is fixedly provided with a same buffer pressure rod 17, the bottom of the buffer sleeve 16 is fixedly connected with the top of the shock absorption partition plate 9, when the two L-shaped fixing plates 8 are stressed to move by utilizing the limiting assembly, the two L-shaped fixing plates are always in the same transverse horizontal direction, four corners of the installation seat 1 are all in threaded connection with shock absorption bolts 2, the installation seat 1 is fixedly arranged on the ground through the shock absorption bolts 2, the limiting and buffering effects of the bridge 3 during longitudinal displacement can be improved by utilizing the shock absorption bolts 2, sliding rods are fixedly arranged on the inner walls at two sides of the installation groove, utilize the slide bar can not take place the skew when making slider 13 lateral shifting, the quantity of spring damper 12 is three to six, and three to on the bottom inner wall of the damping groove 6 that six spring damper 12 equidistance were arranged, utilize spring damper 12 can carry out effectual buffering protection to the longitudinal displacement of bridge 3, the cover is equipped with damping spring and shock attenuation gasket on the shock attenuation bolt 2, and mount pad 1 is located between damping spring and the shock attenuation gasket, utilize damping spring and shock attenuation gasket can improve 2 elastic reset ability of damping bolt, fixed mounting has linear bearing on the slider 13, the slide bar runs through linear bearing and with linear bearing's inner circle sliding connection, utilize linear bearing can reduce the sliding friction power of slider 13 and slide bar.
When the bridge 3 vibrates, the bridge 3 can generate longitudinal displacement, at the moment, the bridge 3 can press the mounting seat 1 to perform longitudinal displacement, the damping bolt 2 can be firstly compressed, the damping bolt 2 can damp the longitudinal movement of the mounting seat 1, the mounting seat 1 can simultaneously drive the L-shaped fixing plate 8 to perform longitudinal movement, the L-shaped fixing plate 8 can enable the damper 14 and the spring damper 12 to deform, therefore, under the cooperation of the damper 14 and the spring damper 12, the damping and buffering effects during the longitudinal movement of the bridge 3 can be greatly improved, when the bridge 3 transversely moves, the mounting seat 1 is driven to also transversely move, under the transverse limit of the damping bolt 2, once the mounting seat 1 needs to generate larger transverse movement, the damping bolt 2 can be broken, and the damping bolt 2 is easy to replace, therefore can not influence the overall structure of bridge 3, and mount pad 1 can drive L shape fixed plate 8 when carrying out lateral shifting this moment, L shape fixed plate 8 can make gag lever post 15 and buffer hydraulic stem 17 take place deformation, buffer hydraulic stem 17 then can vibrate the lateral shifting of bridge 3, also can drive screw-nut 10 when L shape fixed plate 8 removes and slide on ball screw 11 simultaneously, therefore under screw-nut 10 and ball screw 11's damping, can carry on spacingly to the lateral shifting of bridge 3.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.