Multi-angle self-adaptive collision assembly type energy dissipation stop block

Abstract

The utility model relates to the technical field of bridge anti-seismic check blocks, in particular to a multi-angle self-adaptive collision assembly type energy dissipation check block which comprises a U-shaped plate, a front plate, an outer back plate, an inner back plate, springs, cushion blocks, energy dissipation soft steel, stiffening ribs and bolts. The front plate and the inner back plate are connected through a plurality of springs, the springs are installed between the cushion blocks, the cushion blocks are welded to the inner faces of the front plate and the inner back plate, the U-shaped plate is connected to a cover beam in an assembled mode, and the outer back plate is installed on the side, away from the cover beam, of the top of the U-shaped plate. The outer back plate and the inner back plate are connected through a plurality of pieces of energy dissipation soft steel. The whole energy consumption stop block is connected to the bent cap through the bolts, and later maintenance and replacement are facilitated. After the earthquake action is finished, the restoring force of the spring can push the main beam to reset, the post-earthquake residual deformation of the main beam is reduced, the bridge repairing difficulty is reduced, and the device has the advantages of being clear in structure, clear in stress, comprehensive in performance, economical in cost, capable of being assembled, easy to repair and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge seismic fender technology field especially relates to a multi -angle self -adaptation collision's assembled energy dissipation fender. BACKGROUND

[0002] Bridge is the important pivot of traffic transportation, and it is of great significance to keep the bridge structure intact under the action of earthquake. Therefore, it is necessary to reasonably design the bridge to ensure that the bridge structure is not damaged or the corresponding structural damage is reduced under the action of earthquake.

[0003] The energy dissipation fender placed on the top of the pier cap beam is an important component of bridge seismic resistance, which can limit the transverse displacement of the main beam and prevent the main beam from falling off under the action of earthquake. The conventional energy dissipation fender is usually a solid reinforced concrete block with rectangular or trapezoidal cross section. When an earthquake occurs, the direction of the earthquake action is uncertain. The traditional fender can only limit the transverse displacement of the main beam, but the displacement of the main beam in actual earthquake will be coupled with translation and rotation, which may cause different angle collisions between the main beam and the energy dissipation fender, so that the energy dissipation fender may be in a local stress condition, and the overall energy dissipation fender is more likely to be damaged. In addition, the conventional concrete fender is poured as a whole with the cap beam. When the energy dissipation fender and the main beam collide, not only the structure of the energy dissipation fender is damaged, but also the energy dissipation fender transmits a large impact force to the lower structure, causing corresponding damage. Moreover, the overall damage is difficult to repair after the earthquake.

[0004] The traditional fender cannot adapt to the uncertain angle collision between the main beam under the action of earthquake. When the collision occurs, the overall damage is difficult to repair. Therefore, it is necessary to optimize the design of the energy dissipation fender under the action of earthquake to make it have comprehensive performance and be economical and efficient. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of multi -angle self -adaptation collision's assembled energy dissipation fender, which can effectively adapt to the multi -angle collision of main beam under the action of earthquake, and act on different degrees of earthquake. Different parts of energy dissipation fender will be buffered, energy-dissipated or damaged accordingly, play the role of multi-level prevention, and the energy dissipation fender of assembled design is more convenient to install and replace, which is beneficial to the repair of damaged energy dissipation fender.

[0006] The utility model provides a kind of multi -angle self -adaptation collision's assembled energy dissipation fender, using the following technical scheme:

[0007] A kind of multi -angle self -adaptation collision's assembled energy dissipation fender, including U type board, front plate, outer back plate, inner back plate, spring, cushion block, energy dissipation soft steel, stiffener and bolt;

[0008] The front plate is connected with the inner back plate by springs, the springs are installed between the cushion blocks, the cushion blocks are welded to the inner surfaces of the front plate and the inner back plate, the U-shaped plate is assembled and connected on the bent cap, the outer back plate is installed on the top of the U-shaped plate and away from the bent cap, and the outer back plate is connected with the inner back plate by the energy dissipation soft steel.

[0009] Further, a plurality of bolt holes are arranged on the left and right side plates of the U-shaped plate, and the stop block is connected to the bent cap through the bolts.

[0010] Further, the front plate is connected with the inner back plate only through the springs and is not in direct contact with the U-shaped plate, and the impact of the main beam on the stop plate is buffered through the front plate and the springs.

[0011] Further, the U-shaped plate and the outer back plate are integrally connected, and the same side surface of the outer back plate and the U-shaped plate and the outer surfaces of the left and right side plates of the U-shaped plate are provided with stiffening ribs in the horizontal and vertical directions to improve the overall bending stiffness of the U-shaped plate and the outer back plate.

[0012] Further, the front plate and the inner back plate are connected as a whole through the springs.

[0013] Further, the inner back plate and the front plate are both provided with cushion blocks corresponding to each other for positioning and installing the springs.

[0014] Further, the diameters of the springs are equal, and the lengths are determined by the distance between the two end cushion blocks.

[0015] The multi-angle self-adaptive collision assembly type energy dissipation stop block has the advantages that:

[0016] 1、the energy dissipation stop block compared with the traditional stop block, its stress is clear, performance is comprehensive, U-shaped plate, front plate, inner back plate, outer back plate are steel structure, stiffness is bigger, stop block inner back plate outer back plate between energy dissipation soft steel, under the action of earthquake, can pass through energy dissipation soft steel deformation and dissipate seismic energy, limit the possible multi-angle displacement of main beam, prevent the local serious damage of energy dissipation stop block, for the different angle collision that may occur between energy dissipation stop block and main beam under the action of earthquake, the several springs between the front plate and the inner back plate constitute a deformation buffer part, can adapt to the impact in different directions, through the different degree deformation of the springs in different positions, the front plate and the main beam are attached, effectively buffer the collision, at the same time, increase the collision area of the energy dissipation stop block and the main beam under this condition, make the spring fully play the buffering effect.

[0017] 2. Under frequency-domain seismic loading, the springs located between the front plate and the inner back plate elastically contract, absorbing energy, and the overall structure of the energy-dissipating block remains intact. Under design seismic loading, several energy-dissipating soft steel sections between the inner and outer back plates deform to dissipate energy, while other parts of the energy-dissipating block structure remain undamaged. Under rare earthquake loading, the enormous impact force further damages the steel plate structure and stiffening ribs due to the deformation of the energy-dissipating soft steel sections. Thus, the energy dissipation mechanism of the structure varies under different levels of seismic loading, reducing localized damage to the energy-dissipating block and making its failure mode controllable.

[0018] 3. This utility model adopts an assembly-type installation method where the stop block is connected to the cap beam with bolts, which facilitates later maintenance and replacement. After the earthquake, the restoring force of the spring can push the main beam back to its original position, reducing the residual deformation of the main beam after the earthquake and reducing the difficulty of bridge repair. It has the advantages of clear structure, clear stress distribution, comprehensive performance, economical cost, assemblability, and easy repair. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the energy-consuming block in this utility model;

[0020] Figure 2 This is a top view of the overall structure of the energy-consuming block in this utility model;

[0021] Figure 3 This is a side view of the overall structure of the energy-consuming block in this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the energy-consuming block and the main beam and cap beam in this utility model;

[0023] Figure 5 This is a partially enlarged view of the bolts of the energy-consuming block in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. U-shaped plate; 2. Front plate; 3. Outer back plate; 4. Inner back plate; 5. Spring; 6. Pad block; 7. Energy-dissipating mild steel; 8. Stiffening rib; 9. Bolt; 10. Main beam; 11. Support; 12. Cap beam. Detailed Implementation

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by those skilled in the art to which the utility model belongs. The similar words such as "include" used in this paper mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0027] Referring to Figures 1 to 5 A multi-angle self-adaptive collision assembly type energy dissipation block, comprising a U-shaped plate 1, a front plate 2, an outer back plate 3, an inner back plate 4, springs, cushion blocks 6, energy dissipation soft steels 7, stiffeners 8 and bolts 9; the front plate 2 and the inner back plate 4 are connected by a plurality of springs 5, the springs 5 are installed between the cushion blocks 6, the cushion blocks 6 are welded to the inner faces of the front plate 2 and the inner back plate 4, the U-shaped plate 1 is assembled and connected on the bent cap 12, the outer back plate 3 is installed on the top of the U-shaped plate 1 away from the bent cap 12, and the outer back plate 3 and the inner back plate 4 are connected by a plurality of energy dissipation soft steels 7.

[0028] In some embodiments, the energy dissipation soft steel 7 is a V-shaped bidirectional structure, so that the buffering effect of the energy dissipation soft steel 7 on the seismic force can be enhanced.

[0029] In some embodiments, referring to Figure 2 And Figure 5 A plurality of bolt holes are arranged on the left and right side plates of the U-shaped plate 1, the U-shaped plate 1 is installed on the bent cap 12 through the bolts 9, so that the whole energy dissipation block can be connected on the bent cap 12.

[0030] In some embodiments, referring to Figure 3 The bent cap 12 is sequentially provided with a support 11 and a main beam 10 from bottom to top, and the main beam 10 will be offset and multi-angle collide with the front plate 2 under the action of the earthquake.

[0031] In some embodiments, referring to Figure 2 The front plate 2 is connected with the inner back plate 4 only through the springs 5 and does not directly contact with the U-shaped plate 1, and the impact of the main beam 10 on the whole energy dissipation block is buffered through the front plate 2 and the springs 5.

[0032] In some embodiments, referring to Figure 2The U-shaped plate 1 is integrally connected with the outer back plate 3, and the outer back plate 3 and the same side of the U-shaped plate 1 and the outer surfaces of the left and right side plates of the U-shaped plate 1 are provided with horizontal and vertical stiffening ribs 8, so as to improve the overall bending stiffness of the U-shaped plate 1 and the outer back plate 3.

[0033] In some embodiments, referring to Figure 2 The front plate 2 and the inner back plate 4 are connected as a whole through a plurality of springs 5.

[0034] In some embodiments, referring to Figure 2 The inner back plate 4 and the inner surface of the front plate 2 are both provided with corresponding cushion blocks 6 for positioning and mounting the springs 5.

[0035] In some embodiments, referring to Figure 2 The diameters of the plurality of springs 5 are equal, and the lengths are determined by the distance between the two end cushion blocks 6.

[0036] Working principle: under normal operating conditions, a certain distance is left between the front plate 2 in the overall energy consumption block and the main beam 10, which does not hinder the normal deformation of the main beam 10. The front plate 2 is connected to the whole composed of the back plate and the U-shaped plate 1 through the spring 5, and the whole energy consumption block structure is in a stable state.

[0037] Under the action of seismic waves in the frequency domain, when the horizontal displacement of the main beam 10 exceeds the pre-reserved distance between the front plate 2 and the main beam 10, the front plate 2 part of the energy consumption block starts to be stressed by multi-angle collision from the main beam 10, and the front plate 2 will adaptively fit the main beam 10 and rotate under the action of impact force. The spring 5 is relatively soft, and the energy consumption soft steel 7 is relatively hard. Under the action of the buffer and energy consumption of the spring 5 between the front plate 2 and the inner back plate 4, the energy consumption soft steel 7 part does not damage.

[0038] Under the action of design earthquake, the front plate 2 rotates, and the buffer spring 5 between the outer back plate 3 and the inner back plate 4 participates in the stress and deforms to dissipate seismic energy.

[0039] Under the action of rare earthquake, the elastic structure composed of the steel front plate 2, the outer back plate 3, the inner back plate 4 and the stiffening rib 8 of the overall energy consumption steel structure starts to be damaged, consumes seismic energy, and reduces the damage of the cap beam 12 to the main beam 10. The energy consumption block can adaptively rotate the front plate 2 to fit the main beam 10 when colliding.

[0040] The energy consumption mode of the overall structure of the energy consumption block under different levels of earthquake is different, which can effectively reduce the local damage degree of the overall structure of the energy consumption block, so that the damage form of the overall energy consumption block under different seismic actions is controllable. At the same time, the overall energy consumption block is a fabricated structure, and when the seismic action disappears, the damaged block structure can be removed and replaced, which is convenient for maintenance and has good practicability.

[0041] Although the embodiments of the present application have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to the embodiments. However, it should be understood that such modifications and changes are within the scope and spirit of the present application as described in the claims. Moreover, the present application described herein can have other embodiments and be practiced or implemented in various ways.

Claims

1. A multi-angle self-adaptive collision assembled energy dissipation block, characterized in that It comprises a U-shaped plate, a front plate, an outer back plate, an inner back plate, springs, cushion blocks, energy dissipation soft steel, stiffening ribs and bolts; the front plate is connected with the inner back plate by springs, the springs are installed between the cushion blocks, the cushion blocks are welded to the inner faces of the front plate and the inner back plate, the U-shaped plate is assembled and connected on the bent cap, the outer back plate is installed on the top of the U-shaped plate away from the bent cap, the outer back plate is connected with the inner back plate by a plurality of energy dissipation soft steels.

2. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 1, characterized in that, A plurality of bolt holes are arranged on the left and right side plates of the U-shaped plate, and the fender blocks are connected to the bent cap through the bolts.

3. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 2, characterized in that, The front plate is connected with the inner back plate only through the springs and does not directly contact the U-shaped plate.

4. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 3, characterized in that, The U-shaped plate and the outer back plate are integrally connected, and the outer back plate and the same side of the U-shaped plate and the outer surfaces of the left and right side plates of the U-shaped plate are provided with horizontal and vertical stiffening ribs.

5. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 4, characterized in that, The front plate and the inner back plate are connected as a whole through a plurality of springs.

6. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 5, characterized in that, The inner back plate and the front plate are both provided with corresponding cushion blocks on the inner faces for positioning and installing the springs.

7. The multi-angle self-adaptive impact assembled energy dissipation block according to claim 6, characterized in that, The diameters of the springs are equal, and the lengths are determined by the distance between the two end cushion blocks.

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