CN211596811U - Earthquake-resistant building foundation - Google Patents

Abstract

The utility model discloses an earthquake-resistant building foundation. The technical scheme of the foundation includes a foundation, an upper foundation beam and a lower foundation beam are arranged above the foundation, an upper steel plate is fixed at the bottom of the upper foundation beam, and a lower steel plate is fixed at the top of the lower foundation beam. A damping component and a buffer component are arranged between the upper steel plate and the lower steel plate; the damping component includes two steel columns, the two steel columns are fixedly connected with the upper steel plate and the lower steel plate respectively, and five steel columns are fixed between the two steel columns. A shock-absorbing spring for slowing down the longitudinal vibration; the buffer component includes two leaf springs, which are stacked with multiple sheets of spring steel. The side wall is fixedly connected with a connecting rod, and the end of the connecting rod away from the leaf spring is vertically fixed to the steel column; when an earthquake occurs, the leaf spring and the shock-absorbing spring undergo elastic deformation after the impact force brought by the earthquake, so that the upper steel plate can be relatively Displacement to avoid rigid rupture of the earthquake-resistant building foundation, so as to prevent the building floor from collapsing.

Description

An earthquake resistant building foundation

technical field

The utility model relates to the field of building structures, in particular to an earthquake-resistant building foundation.

Background technique

Architecture is a general term for buildings and structures. It is an artificial environment created by people in order to meet the needs of social life, using the material and technical means they have mastered, and using certain scientific laws, feng shui concepts and aesthetic laws. The building foundation is divided into natural foundation and Artificial foundation, the foundation that can directly bear the load of the building without treatment is called natural foundation, on the contrary, the foundation that needs to be treated by foundation treatment technology is called artificial foundation; with the continuous improvement of people's life, many people have lived in high-rise buildings However, many existing buildings have poor seismic performance, which threatens people's living safety. Based on the above problems, a seismic foundation is required.

In the prior art, the patent with the publication number: CN203795448U discloses a building foundation, the building foundation includes a steel bottom plate, a steel roof concrete pouring panel, a reinforced composite crushed stone cushion, a reinforced concrete reinforcement and a concrete pouring base, A reinforced composite gravel cushion is arranged under the steel base plate, a reinforced concrete reinforcement body is arranged above the steel base plate, a concrete pouring base is arranged on both sides of the reinforced concrete reinforcement body, and a reinforced concrete reinforcement body is arranged above. A steel roof, a concrete pouring panel is arranged above the steel roof, and a number of steel bars and steel plate support columns are arranged inside the reinforced concrete reinforcement.

However, the steel bars and steel plate support columns of the above-mentioned building foundations and the reinforced concrete reinforcement are all connected in a fixed manner. When an earthquake occurs, the connection between the steel bar and the reinforced concrete reinforcement, and the connection between the steel plate support column and the reinforced concrete reinforcement body are fixed. Rigid fracture is prone to occur at the place, resulting in the rupture of the building foundation and the collapse of the building floor.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is to provide an earthquake-resistant building foundation, the earthquake-resistant building foundation has strong seismic performance, and after encountering an earthquake, the leaf spring and the shock-absorbing spring are elastically deformed by the impact force brought by the earthquake. , so that the relative displacement of the upper steel plate can occur, and the rigid rupture of the earthquake-resistant building foundation can be avoided, so as to prevent the building floor from collapsing.

The technical scheme adopted by the present utility model is realized as follows: an earthquake-resistant building foundation includes a base, an upper base beam and a lower base beam are arranged above the base, an upper steel plate is fixed at the bottom of the upper base beam, and the lower base is A lower steel plate is fixed on the top of the beam, and a shock absorbing assembly and a buffer assembly are arranged between the upper steel plate and the lower steel plate;

The shock absorbing assembly includes two steel columns, the two steel columns are respectively fixedly connected with the upper steel plate and the lower steel plate, and five shock absorbing springs for slowing longitudinal vibration are fixed between the two steel columns;

The buffer assembly includes two leaf springs, the two leaf springs are formed by stacking multiple sheets of spring steel, and the two ends of the leaf spring along the stacking direction are respectively fixedly connected to the upper steel plate and the lower steel plate, so A connecting rod is fixedly connected to the side wall of the leaf spring, and one end of the connecting rod away from the leaf spring is vertically fixed to the steel column.

By adopting the above technical solutions, when an earthquake occurs, the shock waves from the earthquake can be divided into longitudinal waves and transverse waves. When the transverse waves are transmitted, the plate springs fixed on the upper and lower steel plates are elastically deformed by force, which can effectively slow down the crustal shock. Lateral vibration; when longitudinal waves are transmitted, the damping spring contracts to further slow down the longitudinal vibration of the crust; the leaf spring cooperates with the damping spring to ensure the seismic performance of the foundation; after an earthquake, the leaf spring and damping spring are affected by the earthquake zone After the impact force comes, elastic deformation occurs, so that the upper steel plate can have relative displacement, which avoids the rigid rupture of the earthquake-resistant building foundation and prevents the building floor from collapsing.

As a further improvement of the present invention, the two ends of the leaf spring are provided with fixing plates, the upper steel plate and the lower steel plate are both provided with a placement cavity, the opening of the placement cavity is arranged in a T shape, and both sides of the fixing plate are provided with a placement cavity. screw holes, the fixing plate is inserted into the placement cavity, and the fixing plate is in contact with the inner wall of the placement cavity.

By adopting the above technical solution, the fixing plate is put into the placing cavity through the opening of the placing cavity, the fixing plate is moved so that the fixing plate is in contact with the inner wall of the placing cavity, and bolts are screwed into the screw holes to make the fixing plate and the upper The steel plate and the lower steel plate are fixedly connected to realize the fixing of the leaf spring and the upper steel plate as well as the leaf spring and the lower steel plate.

As a further improvement of the present invention, a connecting block is fixed on the side wall of the leaf spring, both side walls of the connecting block are provided with through holes, and the side wall of the connecting block away from the leaf spring is provided with a connecting groove, and the connecting block is provided with a connecting groove. The groove communicates with the through hole, the connecting rod is inserted into the connecting groove, and one end of the connecting rod close to the connecting groove is provided with a fixing hole.

By adopting the above-mentioned technical scheme, the connecting rod is inserted into the connecting groove, and the bolt is passed through the through hole and the fixing hole from one side of the connecting block, and protrudes from the other side of the connecting block, so as to realize the connecting rod and the connecting block. fixed.

As a further improvement of the present invention, the connection between the connecting rod and the steel column is provided with a reinforcing rib, and the reinforcing rib is respectively fixedly connected with the connecting rod and the steel column.

By adopting the above technical scheme, the reinforcing ribs are respectively fixedly connected with the connecting rod and the steel column, so as to ensure the connection strength of the connecting rod and the steel column.

As a further improvement of the present invention, an elastic ring is slidably connected between the two steel columns, and the elastic ring surrounds the shock-absorbing spring.

By adopting the above technical solution, due to the existence of moisture in the ground, the damping effect of the damping spring will be affected by the moisture, and the elastic ring surrounds the damping spring to play a waterproof role.

As a further improvement of the present invention, two of the steel columns are fixed with five guide columns, and the five guide columns are all sleeved with the shock-absorbing spring.

By adopting the above technical solution, when vibration occurs, the inner ring of the shock absorbing spring is pressed against the guide column, which can prevent the shock absorbing spring from shifting relative to the steel column.

As a further improvement of the present invention, the upper base beam is fixedly connected with a plurality of groups of reinforcing steel bars, and the reinforcing steel bars and the upper steel plate are fixedly connected.

By adopting the above technical solution, the arrangement of reinforcing steel bars further makes the connection between the upper ground beam and the upper steel plate more stable.

As a further improvement of the present invention, a gravel layer is provided below the base.

By adopting the above-mentioned technical solution, there are gaps in the crushed stone layer, and the energy of the earthquake can be consumed by using the gap between the crushed stones.

To sum up, the utility model has the following beneficial effects:

When an earthquake occurs, the shock waves from the earthquake can be divided into longitudinal waves and transverse waves. When the transverse waves are transmitted, the leaf springs fixed on the upper and lower steel plates are elastically deformed by force, which can effectively slow down the lateral vibration of the crust; When the shock absorbing spring contracts, the longitudinal vibration of the earth's crust is further slowed down; the leaf spring cooperates with the shock absorbing spring to ensure the seismic performance of the foundation; after an earthquake, the rigid fracture of the wall after being squeezed is avoided, ensuring the safety of the building floor. stable.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present utility model;

2 is a schematic structural diagram of a buffer assembly in an embodiment of the present invention;

3 is a partial cross-sectional view of the damping assembly in the embodiment of the present invention;

4 is a cross-sectional view of the upper base beam in the embodiment of the present invention.

In the figure: 1, base; 2, gravel layer; 3, lower base beam; 4, upper base beam; 41, reinforcing steel bar; 5, lower steel plate; 6, upper steel plate; 7, steel column; 71, guide column; 72, damping spring; 73, elastic ring; 8, leaf spring; 81, long spring plate; 811, fixing plate; 812, screw hole; 82, short spring plate; 821, connecting block; 822, through hole; 823, 824, fixing hole; 9, placing cavity; 10, connecting rod; 101, reinforcing rib; 11, rubber layer.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, an earthquake-resistant building foundation includes a base 1, a gravel layer 2 is arranged under the base 1, and the gravel layer 2 has a gap inside, which can utilize the gap between the gravels to dissipate the energy of the earthquake, and also play a role in Drainage. A lower base beam 3 is horizontally fixed above the base layer, an upper base beam 4 is arranged horizontally above the lower base beam 3, and the upper base beam 4 is fixedly connected to the upper wall, and the upper base beam 4 and the lower base beam 3 are arranged oppositely. In this embodiment, the upper base beam 4 and the lower base beam 3 can be designed according to the design of the ground building and the direction of the wall.

The top of the lower base beam 3 is provided with a lower steel plate 5, the cross section of the lower steel plate 5 is U-shaped, the opening of the lower steel plate 5 faces downward, and the inner wall of the lower steel plate 5 is in conflict with the outer wall of the lower base beam 3. To ensure the connection strength of the lower steel plate 5 and the lower base beam 3, therefore, the lower steel plate 5 and the lower base beam 3 are connected by pouring.

As shown in FIG. 1 and FIG. 4 , an upper steel plate 6 is fixed at the bottom of the upper base beam 4, and the upper steel plate 6 is arranged relative to the lower steel plate 5. The cross-section of the upper steel plate 6 is U-shaped, and the inner wall of the lower steel plate 5 is connected to the upper base beam. The outer wall of 4 collides, and the interior of the upper base beam 4 is fixedly connected with multiple groups of reinforcing steel bars 41. The two ends of the reinforcing steel bars 41 are respectively welded with the opposite two side walls of the upper steel plate 6, and the multiple groups of reinforcing steel bars 41 are along the length of the upper steel plate 6. The directions are equidistant. In this embodiment, after the reinforcing steel bar 41 is welded to the upper steel plate 6, the fixed connection between the upper steel plate 6 and the upper foundation beam 4 is realized by pouring.

As shown in FIG. 1 and FIG. 3 , a shock absorbing assembly and a buffer assembly are arranged between the upper steel plate 6 and the lower steel plate 5, and the shock absorbing assembly includes two steel columns 7, one of which is fixedly connected to the upper steel plate 6, The other steel column 7 is fixedly connected to the lower steel plate 5, the end faces of the two steel columns 7 are opposite to each other, and the central axes coincide. The end surfaces of the two steel columns 7 are provided with five guide columns 71 . The guide columns 71 are equidistantly arranged around the edges of the steel columns 7 , and the positions of the guide columns 71 of the two steel columns 7 correspond to each other. There are five damping springs 72 between the end faces of the two steel columns 7, one end of the damping springs 72 is fixedly connected with the steel column 7 located on the upper steel plate 6, and the other end is fixedly connected with the steel column 7 located on the lower steel plate 5; One end of the shock spring 72 is sleeved with the guide column 71 located on the upper steel plate 6 , and the other end is sleeved with the guide column 71 located on the lower steel plate 5 . An elastic ring 73 is arranged between the two steel columns 7, and the elastic ring 73 is in the shape of a square cylinder. 7. Fixed connection, elastic ring 73 surrounds damping spring 72. Due to the existence of moisture in the ground, the damping effect of the damping spring 72 will be affected by the moisture, and the elastic ring 73 surrounds the damping spring 72 to play a waterproof role.

As shown in FIGS. 1 and 3 , the buffer assembly includes two leaf springs 8 . The two leaf springs 8 are disposed on opposite sides of the steel column 7 , and the openings of the leaf springs 8 face outward relative to the steel column 7 . The leaf spring 8 includes a long spring plate 818 and a short spring plate 828 and a plurality of intermediate spring plates with different lengths arranged between the long spring plate 818 and the short spring plate 828 . The long spring plate 818 is fixedly connected with the short spring plate 828 . Both ends of the long spring plate 818 along the lamination direction of the leaf spring 8 are fixed with fixing plates 811 , the fixing plates 811 are arranged in a T shape, and the extending edges of the fixing plate 812 are provided with screw holes 91 ; the upper steel plate 6 and the lower steel plate 5 are provided with The cavity 9 is placed, the opening of the placement cavity 9 is arranged in a T shape, and the width of the opening of the placement cavity 9 matches the fixing plate 811 .

Put the fixing plate 811 into the placing cavity 9 through the opening of the placing cavity 9, move the fixing plate 811 to make the fixing plate 811 abut with the inner wall of the placing cavity 9, and screw bolts into the screw holes 91 to make the long spring plate 818 two. The fixing plates 811 at the ends are respectively fixedly connected with the upper steel plate 6 and the lower steel plate 5 to realize the fixing of the leaf spring 8 and the upper steel plate 6 and the leaf spring 8 and the lower steel plate 5 .

A rectangular connecting block 821 is fixed on the end face of the short reed plate 828. The upper and lower side walls of the connecting block 821 are provided with through holes 822. The side wall of the connecting block 821 relatively far away from the short reed plate 828 is provided with a connecting groove 823. The connecting groove 823 It communicates with the through hole 822 . A connecting rod 10 is provided between the connecting block 821 and the steel column 7 of the lower steel plate 5 . The bolts pass through the through holes 822 and the fixing holes 824 from one side of the connecting block 821 and pass out from the other side of the connecting block 821 to realize the fixing of the connecting rod 10 and the connecting block 821 . One end of the connecting rod 10 away from the connecting block 821 is fixedly connected to the steel column 7 on the lower steel plate 5 , and a reinforcing rib 101 is provided at the connection between the connecting rod 10 and the steel column 7 , and the reinforcing rib 101 is respectively connected with the connecting rod 10 and the steel column 7 The connection is fixed to ensure the connection strength of the connecting rod 10 and the steel column 7 .

As shown in FIG. 1 and FIG. 3 , a rubber layer 11 is provided between the upper steel plate 6 and the lower steel plate 5 . Both sides of the rubber layer 11 are fixedly connected to the upper steel plate 6 and the lower steel plate 5 respectively, and the rubber layer 11 is further connected to the upper base beam 4 . It is supported with the wall to reduce the force of the wall on the shock-absorbing spring 72 .

The principle of this embodiment: when an earthquake occurs, the shock waves from the earthquake can be divided into longitudinal waves and transverse waves. When the transverse waves are transmitted, the leaf springs 8 fixed on the upper steel plate 6 and the lower steel plate 5 are elastically deformed by force, which can effectively slow down The lateral vibration of the earth's crust; when the longitudinal wave is transmitted, the damping spring 72 shrinks to further slow down the longitudinal vibration of the earth's crust; the leaf spring 8 cooperates with the damping spring 72 to ensure the seismic performance of the foundation; after an earthquake, the leaf spring 8 and The shock-absorbing spring 72 is elastically deformed after being subjected to the impact force caused by the earthquake, so that the upper steel plate 6 can be relatively displaced, so as to avoid the rigid rupture of the earthquake-resistant building foundation and prevent the building floor from collapsing.

The above-mentioned embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as required after reading this specification, but as long as the present invention is used in the present invention. are protected by patent law within the scope of the claims.

Claims (8)

1. An earthquake-resistant building foundation, comprising a base (1), characterized in that: an upper base beam (4) and a lower base beam (3) are provided above the base (1), and the bottom of the upper base beam (4) An upper steel plate (6) is fixed, a lower steel plate (5) is fixed on the top of the lower base beam (3), and a damping assembly and a buffer assembly are arranged between the upper steel plate (6) and the lower steel plate (5). ; The shock absorbing assembly comprises two steel columns (7), the two steel columns (7) are respectively fixedly connected with the upper steel plate (6) and the lower steel plate (5), and the two steel columns (7) are fixed between the two steel columns (7). Five shock-absorbing springs (72) for damping longitudinal vibration are fixed; The buffer assembly includes two leaf springs (8), the two leaf springs (8) are formed by stacking multiple sheets of spring steel, and two ends of the leaf spring (8) along the stacking direction are respectively connected to the upper steel plate. (6) is fixedly connected with the lower steel plate (5), the side wall of the leaf spring (8) is fixedly connected with a connecting rod (10), and one end of the connecting rod (10) away from the leaf spring (8) is connected to the steel column (7) Vertically fixed. 2. An earthquake-resistant building foundation according to claim 1, characterized in that: both ends of the leaf spring (8) are provided with fixed plates (811), and the upper steel plate (6) and the lower steel plate (5) are both A placement cavity (9) is provided, the opening of the placement cavity (9) is arranged in a T shape, the two sides of the fixing plate (811) are provided with screw holes (812), and the fixing plate (811) is inserted in the placement cavity In (9), the fixing plate (811) collides with the inner wall of the placement cavity (9). 3. An earthquake-resistant building foundation according to claim 1, wherein a connecting block (821) is fixed on the side wall of the leaf spring (8), and both side walls of the connecting block (821) are provided with a connecting block (821). A hole (822), the side wall of the connecting block (821) away from the leaf spring (8) is provided with a connecting groove (823), the connecting groove (823) communicates with the through hole (822), and the connecting rod (10 ) is inserted into the connecting groove (823), and a fixing hole (824) is provided at one end of the connecting rod (10) close to the connecting groove (823). 4. An earthquake-resistant building foundation according to claim 1, wherein a reinforcing rib (101) is provided at the connection between the connecting rod (10) and the steel column (7), and the reinforcing rib (101) They are respectively fixedly connected with the connecting rod (10) and the steel column (7). 5. An earthquake-resistant building foundation according to claim 1, wherein an elastic ring (73) is slidingly connected between the two steel columns (7), and the elastic ring (73) surrounds the Shock spring (72). 6. An earthquake-resistant building foundation according to claim 1, characterized in that: two of the steel columns (7) are fixed with five guide columns (71), and the five guide columns (71) are fixed with The shock-absorbing spring (72) is socketed. 7. An earthquake-resistant building foundation according to claim 1, characterized in that: the upper foundation beam (4) is internally fixedly connected with multiple groups of reinforcing steel bars (41), and the reinforcing steel bars (41) and the upper steel plate ( 6) Fixed connection. 8. An earthquake-resistant building foundation according to claim 1, characterized in that: a gravel layer (2) is provided below the base (1).

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