WOODEN CONNECTION STRUCTURE FOR SEISMIC RESISTANCE IN PILE FOUNDATIONS

Abstract

A wooden connection structure for seismic resistance in pile foundations includes a base, a supporting pile and four seismic isolation frames; the base is provided with a central groove and a rectangular groove; the supporting pile includes a connecting column, a supporting disc and a central square column; the seismic isolation frame includes a wooden frame and a guide circular tube, the wooden frame is a mortise-and-tenon joint structure; the four seismic isolation frames are respectively sleeved in four rectangular grooves; a lower part of the central square column is sleeved in the square groove, four side facades of the central square column are in contact with side facades of the four seismic isolation frames respectively; and lower parts of the four guide cylinders are respectively sleeved in four guide circular tubes. The wooden connection structure allows for the comprehensive absorption and dispersion of seismic wave energy.

Claims

1. A wooden connection structure for seismic resistance in pile foundations, comprising a base, a supporting pile and four seismic isolation frames; wherein the base comprises an inner base and a peripheral plate, the peripheral plate is sleeved on an outer peripheral surface of the inner base, a cross groove is arranged in a middle of a top surface of the inner base, an axial direction of the cross groove is vertically arranged, the cross groove comprises a central groove and four rectangular grooves, the four rectangular grooves are uniformly distributed in a circumferential direction, each of the four rectangular grooves is in communication with the central groove, a square groove is arranged in a centre of a bottom surface of the central groove, and an axial direction of the square groove is vertically arranged; the supporting pile comprises a connecting column, a supporting disc and a central square column, wherein the connecting column, the supporting disc and the central square column are successively connected from top to bottom, the connecting column is arranged in a middle of an upper surface of the supporting disc, and the central square column is arranged in a middle of a lower surface of the supporting disc; four abutment bosses are arranged on the lower surface of the supporting disc, the four abutment bosses are uniformly distributed in a circumferential direction of the supporting disc, positions of the four abutment bosses respectively correspond one-to-one with positions of the four rectangular grooves, and a size and a shape of each of the four abutment bosses are matched to a size and a shape of each of the four rectangular grooves in correspondence; a guide cylinder is provided on a lower surface of each of the four abutment bosses, and an axial direction of the guide cylinder is vertically arranged; each of the four seismic isolation frames comprises a wooden frame and a guide circular tube; the wooden frame is a mortise-and-tenon joint structure composed of multiple wood blocks, a middle of the wooden frame is provided with a central channel passing through, and the central channel is vertically arranged; an outer diameter of the guide circular tube is matched with an inner diameter of the central channel, and the guide circular tube is sleeved in the central channel; an inner diameter of the guide circular tube is matched with an outer diameter of the guide cylinder; the four seismic isolation frames are respectively sleeved in the four rectangular grooves, each side facade of each of the four rectangular grooves is in contact with each of the four seismic isolation frames, a top surface of each of the four seismic isolation frames is lower than a top surface of the inner base, a bottom of the guide circular tube is fixedly connected to a bottom of each of the four rectangular grooves; a lower part of the central square column is sleeved in the square groove, four side facades of the central square column are in contact with side facades of the four seismic isolation frames respectively, an outer peripheral surface of the central square column is spaced with a side wall of the central groove; the four abutment bosses are respectively sleeved in the four rectangular grooves, a lower side of each of the four abutment bosses is in contact with a top surface of the wooden frame, and lower parts of four guide cylinders are respectively sleeved in four guide circular tubes.

2. The wooden connection structure according to claim 1, wherein the wooden frame is configured as a multi-layer staggered laminated structure, each layer comprises two wood blocks parallel to each other in a longitudinal direction, wood blocks of adjacent two layers are perpendicular to each other in the longitudinal direction, and the wood blocks of the adjacent two layers are interconnected using a mortise-and-tenon joint method.

3. The wooden connection structure according to claim 2, wherein two wood blocks separated by only one layer and positioned relative to each other are defined as a support group; two cushion blocks are arranged between the two wood blocks controlled by a single support group, the two cushion blocks are arranged at both ends of the wood block, and upper and lower surfaces of each of the two cushion blocks are in contact with upper and lower wood blocks respectively.

4. The wooden connection structure according to claim 2, wherein two press blocks are arranged at each end of the wood block on a top layer, and two press blocks at one end of the wood block are arranged on two side facades of the wood block.

5. The wooden connection structure according to claim 1, wherein an axis line of the connecting column, an axis line of the supporting disc and an axis line of the central square column are coaxially arranged.

6. The wooden connection structure according to claim 1, wherein a top surface of the peripheral plate is higher than a top surface of the inner base, a damping washer is arranged between the supporting disc and the peripheral plate, an inner peripheral surface of the damping washer is in contact with an outer peripheral surface of the supporting disc, an outer peripheral surface of the damping washer is in contact with an inner peripheral surface of the peripheral plate, and the damping washer is made of elastic material.

7. The wooden connection structure according to claim 1, wherein an outer peripheral surface of the peripheral plate is composed of multiple rectangular surfaces; the peripheral plate is made of stainless-steel plate.

8. The wooden connection structure according to claim 3, wherein two press blocks are arranged at each end of the wood block on a top layer, and two press blocks at one end of the wood block are arranged on two side facades of the wood block.

9. The wooden connection structure according to claim 2, wherein an axis line of the connecting column, an axis line of the supporting disc and an axis line of the central square column are coaxially arranged.

10. The wooden connection structure according to claim 3, wherein an axis line of the connecting column, an axis line of the supporting disc and an axis line of the central square column are coaxially arranged.

11. The wooden connection structure according to claim 2, wherein a top surface of the peripheral plate is higher than a top surface of the inner base, a damping washer is arranged between the supporting disc and the peripheral plate, an inner peripheral surface of the damping washer is in contact with an outer peripheral surface of the supporting disc, an outer peripheral surface of the damping washer is in contact with an inner peripheral surface of the peripheral plate, and the damping washer is made of elastic material.

12. The wooden connection structure according to claim 3, wherein a top surface of the peripheral plate is higher than a top surface of the inner base, a damping washer is arranged between the supporting disc and the peripheral plate, an inner peripheral surface of the damping washer is in contact with an outer peripheral surface of the supporting disc, an outer peripheral surface of the damping washer is in contact with an inner peripheral surface of the peripheral plate, and the damping washer is made of elastic material.

13. The wooden connection structure according to claim 2, wherein an outer peripheral surface of the peripheral plate is composed of multiple rectangular surfaces; the peripheral plate is made of stainless-steel plate.

14. The wooden connection structure according to claim 3, wherein an outer peripheral surface of the peripheral plate is composed of multiple rectangular surfaces; the peripheral plate is made of stainless-steel plate.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The illustrations of accompanying drawings of the present invention are as follows:

[0024] FIG. 1 is a schematic diagram of a structure of the present invention;

[0025] FIG. 2 is a cross-sectional diagram of FIG. 1;

[0026] FIG. 3 is a partially exploded diagram of the present invention.

[0027] FIG. 4 is a schematic diagram of a connection structure of a supporting pile and a connecting frame;

[0028] FIG. 5 is an enlarged diagram of part A of FIG. 4;

[0029] FIG. 6 is an exploded diagram of a supporting pile and a connecting frame;

[0030] FIG. 7 is an exploded diagram of a wooden frame;

[0031] FIG. 8 is a top cross-sectional diagram of FIG. 1.

[0032] Reference numerals in figures: 1, a base; 2, a supporting pile; 3, a seismic isolation frame; 4, a damping washer; 11, an inner base; 12, a peripheral plate; 21, a connecting column; 22, a supporting disc; 23, a central square column; 24, an abutment boss; 25, a guide cylinder; 31, a wooden frame; 32, a guide circular tube; 311, a wood block; 312, a cushion block; 313, a press block.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present invention is further described below in conjunction with embodiments.

[0034] As shown in FIG. 1 and FIG. 2, a wooden connection structure for seismic resistance in pile foundations includes a base 1, a supporting pile 2 and four seismic isolation frames 3; [0035] as shown in FIG. 2 and FIG. 3, the base 1 includes an inner base 11 and a peripheral plate 12, the peripheral plate 12 is sleeved on an outer peripheral surface of the inner base 11, a cross groove is arranged in a middle of a top surface of the inner base 11, an axial direction of the cross groove is vertically arranged, the cross groove includes a central groove and four rectangular grooves, the four rectangular grooves are uniformly distributed in a circumferential direction, each rectangular groove is in communication with the central groove, a square groove is arranged in a centre of a bottom surface of the central groove, and an axial direction of the square groove is vertically arranged; [0036] as shown in FIG. 6, the supporting pile 2 includes a connecting column 21, a supporting disc 22 and a central square column 23 that are successively connected from top to bottom, wherein the connecting column 21 is arranged in a middle of an upper surface of the supporting disc 22, and the central square column 23 is arranged in a middle of a lower surface of the supporting disc 22; four abutment bosses 24 are further arranged on a lower surface of the supporting disc 22, the four abutment bosses 24 are uniformly distributed in a circumferential direction of the supporting disc 22, positions of the four abutment bosses 24 correspond one-to-one with the positions of the four rectangular grooves, and each abutment boss 24's size and shape are matched to those of its corresponding rectangular groove; a guide cylinder 25 is provided on a lower surface of each of the abutment bosses 24, and an axial direction of the guide cylinder 25 is vertically arranged; [0037] as shown in FIG. 4 and FIG. 7, the seismic isolation frame 3 includes a wooden frame 31 and a guide circular tube 32; the wooden frame 31 is a mortise-and-tenon joint structure composed of multiple wood blocks, a middle of the wooden frame 31 is provided with a central channel passing through, and the central channel is vertically arranged, an outer diameter of the guide circular tube 32 is matched with an inner diameter of the central channel, and the guide circular tube 32 is sleeved in the central channel; an inner diameter of the guide circular tube 32 is matched with an outer diameter of the guide cylinder 25; [0038] as shown in FIG. 2, FIG. 3, FIG. 6 and FIG. 8, the four seismic isolation frames 3 are respectively sleeved in four rectangular grooves, each side facade of single rectangular groove is in contact with the seismic isolation frame 3, a top surface of the seismic isolation frame 3 is lower than a top surface of the inner base 11, a bottom of the guide circular tube 32 is fixedly connected to a bottom of the rectangular groove; a lower part of the central square column 23 is sleeved in the square groove, four side facades of the central square column 23 are in contact with side facades of the four seismic isolation frames 3 respectively, an outer peripheral surface of the central square column 23 is spaced with a side wall of the central groove; the four abutment bosses 24 are respectively sleeved in four rectangular grooves, a lower side of the abutment bosses 24 is in contact with a top surface of the wooden frame 31, and lower parts of the four guide cylinders 25 are respectively sleeved in four guide circular tubes 32.

[0039] As shown in FIG. 7, in order to improve the seismic capacity, the wooden frame 31 is a multi-layer staggered laminated structure, each layer includes two wood blocks 311 that are parallel to each other in a longitudinal direction, the wood blocks 311 of adjacent two layers are perpendicular to each other in the longitudinal direction, and the wood blocks 311 of the adjacent two layers are interconnected using a mortise-and-tenon joint method.

[0040] As shown in FIG. 7, in order to further improve the effect of seismic force, two wood blocks 311 separated by only one layer and positioned relative to each other are defined as a support group; two cushion blocks 312 are arranged between the two wood blocks 311 controlled by one single support group, the two cushion blocks 312 are arranged at both ends of the wood block 311, and upper and lower surfaces of the cushion block 312 are in contact with upper and lower wood blocks 311 respectively.

[0041] As shown in FIG. 5 and FIG. 6, in order to improve the stability of the structure, two press blocks 313 are arranged at each end of the wood block 311 on the top layer, and two press blocks 313 at one end of the wood block 311 are arranged on two side facades of the wood block 311.

[0042] As shown in FIG. 2, in order to improve the supporting stability, a axis line of the connecting column 21, the supporting disc 22 and the central square column 23 is coaxially arranged.

[0043] As shown in FIG. 3, in order to further improve the buffer damping effect, a top surface of the peripheral plate 12 is higher than a top surface of the inner base 11, a damping washer 4 is arranged between the supporting disc 22 and the peripheral plate 12, an inner peripheral surface of the damping washer 4 is in contact with an outer peripheral surface of the supporting disc 22, an outer peripheral surface of the damping washer 4 is in contact with an inner peripheral surface of the peripheral plate 12, and the damping washer 4 is made of elastic material.

[0044] As shown in FIG. 1, in order to improve the strength and corrosion resistance of the base, an outer peripheral surface of the peripheral plate 12 is composed of multiple rectangular surfaces; the peripheral plate 12 is made of stainless steel plate.