CN112576089A - Additional friction plate supported underground structure shock absorption control system - Google Patents

Additional friction plate supported underground structure shock absorption control system Download PDF

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Publication number
CN112576089A
CN112576089A CN202011449667.1A CN202011449667A CN112576089A CN 112576089 A CN112576089 A CN 112576089A CN 202011449667 A CN202011449667 A CN 202011449667A CN 112576089 A CN112576089 A CN 112576089A
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China
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underground structure
friction plate
plate
control system
side walls
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CN202011449667.1A
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马超
周生辉
高辉
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Priority to CN202011449667.1A priority Critical patent/CN112576089A/en
Publication of CN112576089A publication Critical patent/CN112576089A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention relates to an underground structure shock absorption control system with additional friction plate support, belongs to the technical field of underground structure shock resistance, and aims to improve the shock resistance of an underground structure. The enclosing structures are distributed on two sides of the underground structure, a fertilizer groove is formed between the underground structure and the enclosing structures, the bottom plate of the underground structure and the enclosing structures are poured together, embedded parts are arranged on the side walls of the enclosing structures and the underground structures, the enclosing structures and the side walls of the underground structures are connected with friction plate supports through the embedded parts, the friction plate supports are horizontally arranged, and the support intervals and parameters of the friction plates depend on the horizontal rigidity of the surrounding rock soil body and the maximum allowable deformation of the underground structure and the surrounding rock soil body. According to the damping control system for the underground structure supported by the additional friction plate, the sliding deformation supported by the friction plate reduces the horizontal deformation of the underground structure and the residual deformation after the earthquake caused by the earthquake, and improves the earthquake resistance of the underground structure.

Description

Additional friction plate supported underground structure shock absorption control system
Technical Field
The invention relates to an underground structure shock absorption control system supported by an additional friction plate, and belongs to the technical field of underground structure earthquake resistance.
Background
Earthquake damage investigation shows that the center pillar of the underground structure is an earthquake-resistant weak link of the underground structure, and the gravity and vertical inertia force of the soil body on the underground structure greatly increase the axial pressure ratio of the center pillar in the earthquake action process, so that the lateral deformation capacity of the center pillar is insufficient, and the center pillar is easy to damage under the action of larger lateral deformation. The reason for causing the center pillar to have great deformation is that the earthquake reaction of the underground structure is restrained by the deformation of the surrounding rock and soil mass, and when the deformation of the surrounding rock and soil mass caused by the earthquake is applied to the underground structure, the deformation load can be transmitted to the center pillar of the structure through the top and bottom plates of the structure, so that the center pillar is damaged due to insufficient deformability, and even the underground structure is seriously collapsed in the earthquake.
When traditional shock attenuation and isolation control technique was applied to underground structure, mainly set up between structure center pillar and the top sill to reduce the horizontal deformation load that transmits to the center pillar, play the effect of protective structure center pillar, nevertheless because apply the wall rock soil body deformation unchangeable on underground structure, increased the damage destruction of structure side wall and wallboard node that the earthquake leads to. Because the gravity and the vertical inertia force of the soil body covered on the underground structure must be borne by the underground structure, the more reasonable seismic isolation control technology of the underground structure starts from reducing the horizontal deformation acting on the underground structure.
Disclosure of Invention
In order to reduce the earthquake reaction degree of the underground structure and control the damage, damage and residual deformation of the underground structure caused by the earthquake, the invention provides an underground structure shock absorption control system supported by an additional friction plate.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an underground structure shock absorption control system with additional friction plate support is used for reducing earthquake reaction and residual deformation of an underground structure, and the earthquake resistance of the underground structure comprises an enclosure structure, a crown beam, a top plate, a top beam, a top layer column, a middle plate, a middle beam, a bottom layer column, a bottom beam, a bottom plate, side walls, embedded parts, friction plate supports, waist beams and a fertilizer tank, wherein the underground structure consists of the top plate, the top beam, the top layer column, the middle plate, the middle beam, the bottom layer column, the bottom beam, the bottom plate and the side walls; a top beam is arranged between the upper part of the top layer column and the top plate, and a middle beam and a bottom beam are respectively arranged between the bottom layer column and the middle plate as well as between the bottom layer column and the bottom plate; the two sides of the underground structure are provided with an enclosure structure; the middle part and the top part of the enclosure structure are respectively provided with a waist beam and a crown beam, and the elevations of the waist beam and the crown beam are respectively the same as those of the middle plate and the top plate; a fertilizer groove is arranged between the enclosure structure and the side wall of the underground structure; the embedded parts are arranged at the positions of the side walls, the top beams and the waist beams with the same elevation, and the embedded parts are correspondingly arranged on the top beams and the waist beams of the enclosure structure; the enclosing structure crown beam is connected with the top plate through a friction plate support, the enclosing structure waist beam is also connected with the middle plate through a friction plate support, and two ends of the friction plate support are directly fixed on corresponding embedded parts, namely the friction plate support is arranged in the fertilizer groove; when the underground structure works normally, the earth pressure is borne by the enclosing structures on the two sides; when earthquake acts, the seismic load borne by the enclosure structures on the two sides is supported and transmitted to the side walls of the underground structure through the friction plates, meanwhile, the friction plates support sliding deformation to consume seismic energy, the deformation of the underground structure is reduced, and the counter force provided by the side walls of the underground structure for the friction plates to support can resist partial soil pressure; after the earthquake is finished, the underground structure and the enclosure structure are restored to the positions before deformation through the repair friction plate support, the residual displacement of the structure is eliminated, and the quick restoration of the functions of the underground structure after the earthquake is realized.
Furthermore, the enclosing structures are symmetrically arranged on two sides of the underground structure.
Further, the building envelope is poured together with the bottom plate.
Further, the friction plate supports are arranged in the fertilizer tank, and the arrangement distance depends on the static soil pressure and the horizontal rigidity of the surrounding rock soil body.
Furthermore, the friction plate supports are horizontally arranged, and the maximum sliding friction force and the sliding distance depend on the lateral rigidity of the surrounding rock soil body and the maximum allowable deformation of the underground structure and the surrounding rock soil body. .
Furthermore, the cross section of the crown beam is in an inward-side L shape, the bottom part of the inward-side extending part of the crown beam is pressed on the top of the top plate, the contact surface is subjected to smoothing treatment, and a waterproof material is arranged. .
Further, the cross-sectional dimensions of the top beam, the middle beam and the bottom beam are all larger than the width of the top layer column and the bottom layer column.
Further, the embedded part is an embedded steel plate.
Furthermore, hook ribs are arranged on the inner sides of the embedded steel plates, and extend into and are embedded in the corresponding side walls, the crown beams and the waist beams.
Furthermore, the top beam and the bottom beam are respectively in transition with the top plate and the bottom plate by adopting an isosceles trapezoid cross section.
Compared with the prior art, the invention has the following technical effects:
1. the horizontal friction plate arranged in the fertilizer tank is supported, so that the seismic energy is dissipated through sliding deformation, and the horizontal deformation acting on the underground structure is reduced, thereby playing a role in reducing the seismic response of the underground structure.
2. After earthquake, the underground structure and the enclosure structure can be restored to the pre-earthquake positions by repairing the deformed friction plate support.
3. The structure system is simple in form and accords with the underground structure damping control concept based on failure mode and quick repair.
Drawings
FIG. 1 is a cross-sectional view of a subterranean structure shock absorption control system of the present invention;
FIG. 2 is a top view of the underground structure shock absorption control system of the present invention.
In the figure, 1-enclosure structure, 2-crown beam, 3-top plate, 4-top beam, 5-top layer column, 6-middle plate, 7-middle beam, 8-bottom layer column, 9-bottom beam, 10-bottom plate, 11-side wall, 12-embedded part, 13-friction plate support, 14-waist beam and 15-fertilizer tank.
Detailed Description
The present invention will be described in detail with reference to the accompanying fig. 1-2.
Example 1
The cross section diagram of a typical underground structure applicable to the invention is shown in fig. 1-2, and is an underground structure shock absorption control system with additional friction plate support, which is used for reducing earthquake reaction and residual deformation of the underground structure, and the earthquake resistance of the underground structure comprises an enclosure structure 1, a crown beam 2, a top plate 3, a top beam 4, a top layer column 5, a middle plate 6, a middle beam 7, a bottom layer column 8, a bottom beam 9, a bottom plate 10, side walls 11, embedded parts 12, friction plate supports 13, waist beams 14 and a fertilizer tank 15, wherein the underground structure consists of the top plate 3, the top beam 4, the top layer column 5, the middle plate 6, the middle beam 7, the bottom layer column 8, the bottom beam 9, the bottom plate 10 and the side walls 11, the side walls 11 are arranged on two sides of the top plate 3, the middle plate 6 is arranged between the top plate 3 and the bottom plate 10, and the top layer column 5 and the bottom layer column 8. Be provided with back timber 4 between 5 upper portions of top layer post and the roof 3, be provided with well roof beam 7 and floorbar 9 between floorbar 8 and medium plate 6 and the bottom plate 10 respectively, the cross sectional dimension of back timber 4, well roof beam 7 and floorbar 9 all is greater than the width of top layer post 5 and floorbar 8, and back timber 4 and floorbar 9 respectively with roof 3, adopt the isosceles trapezoid cross-section transition between the bottom plate 10 for effective transmission stress and pressure. And the two sides of the underground structure are provided with the enclosing structures 1. The enclosing structures 1 are symmetrically arranged on two sides of the underground structure, and the enclosing structures 1 and the bottom plate 10 are poured together. The middle part and the top part of the envelope structure 1 are respectively provided with a waist beam 14 and a crown beam 2, and the elevations of the waist beam 14 and the crown beam 2 are respectively the same as the middle plate 6 and the top plate 3. A fertilizer groove 15 is arranged between the enclosure structure 1 and the side wall 11 of the underground structure. The embedded parts 12 are arranged at the positions of the side walls 11, the top beams 2 and the waist beams 14, which have the same elevation, the embedded parts 12 are correspondingly arranged on the top beams 2 and the waist beams 14 of the building enclosure 1, the embedded parts are embedded steel plates, hook ribs are arranged on the inner sides of the embedded steel plates, and the hook ribs stretch into and are embedded in the corresponding side walls 11, the top beams 2 and the waist beams 14. The top beam 2 of the enclosure structure 1 is connected with the top plate 3 through a friction plate support 13, the waist beam 14 of the enclosure structure 1 is connected with the middle plate 6 through the friction plate support 13, and two ends of the friction plate support 13 are directly fixed on the corresponding embedded parts 12, namely the friction plate support 13 is arranged in the fertilizer tank 15.
In this embodiment, the friction plate supports 13 are arranged in the fertilizer tank 15 at intervals depending on the static soil pressure and the horizontal stiffness of the surrounding rock soil mass. The friction plate support 13 is horizontally arranged, and the maximum sliding friction force and the sliding distance of the friction plate support depend on the lateral rigidity of the surrounding rock soil body and the maximum allowable deformation of the underground structure and the surrounding rock soil body. The friction plate support 13 is in anchored connection with the embedment 12, but is not limited to anchored connection. In addition, the cross section of the crown beam 2 in the embodiment is in an inward and lateral L shape, the bottom part of the inward extending part of the crown beam is pressed on the top of the top plate 3, the contact surface is subjected to smooth treatment, and a waterproof material is arranged, so that a certain friction energy dissipation effect is achieved during earthquake action. In this embodiment, the beams, the plates, the columns and the walls of the underground structure may be cast-in-place members or prefabricated members, and the connection mode of the beams, the plates, the columns and the walls may be a cast-in-place mode or an assembly mode, but is not limited to the above two modes.
The principle is as follows: when the underground structure works normally, the enclosing structures 1 on the two sides bear the soil pressure. When earthquake action is carried out, earthquake load borne by the enclosure structures 1 on the two sides is transmitted to the side walls 11 of the underground structure through the friction plate supports 13, meanwhile, the friction plate supports 13 slide and deform to consume earthquake energy and reduce deformation of the underground structure, and the side walls 11 of the underground structure provide counter force for the friction plate supports 13 to resist partial soil pressure. After the earthquake is finished, the underground structure and the enclosure structure 1 are restored to the positions before deformation through the repairing friction plate supports 13, the residual displacement of the structure is eliminated, and the quick restoration of the functions of the underground structure after the earthquake is realized.
The present invention has been described in detail, but the content should not be construed as limiting the scope of the invention, and all modifications of the underground structure form, the enclosure type, the friction plate support and fertilizer tank form, the size and the like according to the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. The utility model provides an additional friction plate supports underground structure shock attenuation control system for reduce underground structure earthquake reaction and residual deformation, underground structure shock resistance, including envelope (1), crown beam (2), roof (3), back timber (4), top layer post (5), medium plate (6), well roof beam (7), bottom layer post (8), floorbar (9), bottom plate (10), side wall (11), built-in fitting (12), friction plate support (13), waist roof beam (14) and fat groove (15), its characterized in that: the underground structure consists of a top plate (3), a top beam (4), a top layer column (5), a middle plate (6), a middle beam (7), a bottom layer column (8), a bottom beam (9), a bottom plate (10) and side walls (11), wherein the side walls (11) are arranged on two sides of the top plate (3), the middle plate (6) is arranged between the top plate (3) and the bottom plate (10), and the top layer column (5) and the bottom layer column (8) are respectively arranged between the middle plate (6) and the top plate (3) and between the middle plate (6) and the bottom plate (10); a top beam (4) is arranged between the upper part of the top layer column (5) and the top plate (3), and a middle beam (7) and a bottom beam (9) are respectively arranged between the bottom layer column (8) and the middle plate (6) and the bottom plate (10); the enclosing structures (1) are arranged on two sides of the underground structure; the middle part and the top part of the enclosure structure (1) are respectively provided with a waist beam (14) and a crown beam (2), and the elevations of the waist beam (14) and the crown beam (2) are respectively the same as those of the middle plate (6) and the top plate (3); a fertilizer groove (15) is arranged between the enclosure structure (1) and the side wall (11) of the underground structure; the embedded parts (12) are arranged at the positions of the side walls (11) with the same elevation as the top beam (2) and the waist beam (14), and the embedded parts (12) are correspondingly arranged on the top beam (2) and the waist beam (14) of the building enclosure (1); a crown beam (2) of the enclosure structure (1) is connected with a top plate (3) through a friction plate support (13), a waist beam (14) of the enclosure structure (1) is also connected with a middle plate (6) through the friction plate support (13), two ends of the friction plate support (13) are directly fixed on corresponding embedded parts (12), namely the friction plate support (13) is arranged in a fertilizer tank (15);
when the underground structure works normally, the enclosing structures (1) on the two sides bear the soil pressure; when earthquake action is carried out, the seismic load borne by the enclosure structures (1) at the two sides is transmitted to the side walls (11) of the underground structure through the friction plate supports (13), meanwhile, the friction plate supports (13) slide and deform to consume the seismic energy and reduce the deformation of the underground structure, and the counter force provided by the side walls (11) of the underground structure to the friction plate supports (13) can resist partial soil pressure; after the earthquake is finished, the underground structure and the enclosure structure (1) are restored to the positions before deformation through the repairing friction plate supports (13), the residual displacement of the structure is eliminated, and the quick restoration of the functions of the underground structure after the earthquake is realized.
2. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the enclosing structures (1) are symmetrically arranged on two sides of the underground structure.
3. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the building enclosure structure (1) and the bottom plate (10) are poured together.
4. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the friction plate supports (13) are arranged in the fertilizer tank (15), and the arrangement distance depends on static soil pressure and horizontal rigidity of a surrounding rock soil body.
5. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the friction plate supports (13) are horizontally arranged, and the maximum sliding friction force and the sliding distance depend on the lateral rigidity of the surrounding rock soil body and the maximum allowable deformation of the underground structure and the surrounding rock soil body.
6. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the cross section of the crown beam (2) is in an L shape with the inner side, the bottom part of the part extending to the inner side of the crown beam is pressed on the top of the top plate (3), the contact surface is subjected to smoothing treatment, and waterproof materials are arranged.
7. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the cross-sectional dimensions of the top beam (4), the middle beam (7) and the bottom beam (9) are all larger than the widths of the top layer column (5) and the bottom layer column (8).
8. An additional friction plate supported underground structure damping control system according to claim 1, wherein: the embedded part (12) is an embedded steel plate.
9. An additional friction plate supported underground structure damping control system according to claim 8, wherein: hook ribs are arranged on the inner sides of the embedded steel plates, extend into the corresponding side walls (11), the crown beams (2) and the waist beams (14) and are embedded in the side walls, the crown beams and the waist beams.
10. An additional friction plate supported underground structure damping control system according to claims 1-9, wherein: the top beam (4) and the bottom beam (9) are respectively in transition with the top plate (3) and the bottom plate (10) by adopting isosceles trapezoid cross sections.
CN202011449667.1A 2020-12-09 2020-12-09 Additional friction plate supported underground structure shock absorption control system Pending CN112576089A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116145740A (en) * 2023-04-20 2023-05-23 北京市科学技术研究院城市安全与环境科学研究所 Vibration isolation system for foundation elastic pad of building along rail transit line and construction process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11200396A (en) * 1998-01-12 1999-07-27 Maeda Corp Input seismic force reducing construction utilizing landslide protection wall
CN104818728A (en) * 2015-04-08 2015-08-05 山东大学 Permanent supporting system with basement floor and supporting piles capable of working together
CN104831760A (en) * 2015-05-21 2015-08-12 金陵科技学院 Interlayer shear type underground structure shock-isolation shock-absorption system and construction method thereof
CN111305263A (en) * 2020-03-18 2020-06-19 南京工业大学 Shock insulation structure for separating upper layer from lower layer in two-layer station
CN111364506A (en) * 2020-03-13 2020-07-03 长安大学 Self-resetting anti-seismic energy-consumption split column

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11200396A (en) * 1998-01-12 1999-07-27 Maeda Corp Input seismic force reducing construction utilizing landslide protection wall
CN104818728A (en) * 2015-04-08 2015-08-05 山东大学 Permanent supporting system with basement floor and supporting piles capable of working together
CN104831760A (en) * 2015-05-21 2015-08-12 金陵科技学院 Interlayer shear type underground structure shock-isolation shock-absorption system and construction method thereof
CN111364506A (en) * 2020-03-13 2020-07-03 长安大学 Self-resetting anti-seismic energy-consumption split column
CN111305263A (en) * 2020-03-18 2020-06-19 南京工业大学 Shock insulation structure for separating upper layer from lower layer in two-layer station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116145740A (en) * 2023-04-20 2023-05-23 北京市科学技术研究院城市安全与环境科学研究所 Vibration isolation system for foundation elastic pad of building along rail transit line and construction process

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