Counterfort type multi-pile anti-seismic foundation structure

Abstract

The utility model discloses a buttress type multi-pile anti-seismic foundation structure which comprises a plurality of groups of bearing units which are pre-buried in a bottom layer foundation and distributed at intervals, each bearing unit is composed of a plurality of bearing columns and a central stress column, and the bearing columns are distributed on the periphery of the central stress column. A damping buffer layer is laid on the upper portion of the bottom layer foundation, an anti-seepage layer is arranged on the upper portion of the damping buffer layer, the bearing columns and the center stress column penetrate through the damping buffer layer and the anti-seepage layer, and a building column body with the corresponding position over the center stress column as the center is arranged above the anti-seepage layer. A plurality of buttresses are distributed on the periphery of the lower portion of the building column body. The integral structural design is reasonable, the operation is simple, the construction is convenient, the construction period is short, the anti-seismic strength is high, the practical construction requirement and the building damp-proof anti-seismic coefficient are improved through the intricate and deep combined design of the buttresses and the bearing columns, and the damage of earthquake shaking to the building is effectively changed.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation structures, in particular to a buttress-type multi-pile-column earthquake-resistant foundation structure. Background Art

[0002] Buttress shock absorption is a new type of earthquake-resistant building structure. It prevents earthquakes from transmitting to upper buildings by evenly distributing buttresses and bearing columns around the structural columns of the house, thereby reducing the effect of earthquakes on the upper structures. It is a structural member with low horizontal stiffness and high vertical stiffness. It can withstand large horizontal deformation and can be used as part of the load-bearing system.

[0003] Common laminated rubber seismic isolation bearings are made of steel plates and rubber vulcanized and then pressed in layers at high temperature. The patent publication number is: CN 210658437 U, which discloses a new type of assembled seismic buttress retaining wall, including a base plate, a vertical wall fixedly connected to the base plate, and a buttress. The vertical wall is formed by connecting a vertically arranged rear side vertical wall plate, a rubber plate, and a front side vertical wall plate in sequence, and the buttress is close to the vertical rear side and fixedly connected to the vertical wall. The rubber plate in the vertical wall of the utility model consumes most of the seismic energy through deformation movement, reduces the inertial seismic effect on the buttress retaining wall structure, effectively reduces the damage of seismic waves to the buttress retaining wall, effectively reduces the structural acceleration response caused by earthquakes, reduces the shear stress of the wall and the corresponding shear deformation, thereby playing a role in absorbing and reducing seismic energy.

[0004] The above structure and the existing seismic isolation device have poor stability and cannot effectively prevent earthquakes. Moreover, the rubber of the laminated rubber seismic isolation structure is prone to excessive horizontal displacement under the action of the upper vertical seismic load, which in turn will produce a large vertical deformation, easily destroying the building. It not only consumes a lot of manpower, material resources and financial resources, but is also still unsafe in the event of a strong earthquake. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and to provide a buttress-type multi-pile earthquake-resistant foundation structure that is simple to operate, convenient to construct, has a short construction period, and has high earthquake resistance. Through the intricate and in-depth combination design of buttresses and load-bearing columns, the actual construction needs and the moisture-proof and earthquake-resistant coefficient of the building are improved, effectively changing the damage to the building caused by earthquake shaking.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A buttress-type multi-pile-column seismic foundation structure comprises a plurality of groups of spaced-apart bearing units pre-buried in a base foundation, wherein the bearing units are respectively composed of a plurality of bearing columns and a central load-bearing column, and the plurality of bearing columns are distributed around the central load-bearing column, a shock-absorbing buffer layer is laid on the upper part of the base foundation, an anti-seepage layer is provided on the upper part of the shock-absorbing buffer layer, the bearing columns and the central load-bearing column both pass through the shock-absorbing buffer layer and the anti-seepage layer, a building column centered on a corresponding position directly above the central load-bearing column is arranged above the anti-seepage layer, and a plurality of buttresses are distributed around the lower part of the building column.

[0008] A plurality of steel bars are pre-embedded inside the load-bearing column and the central load-bearing column.

[0009] The depth of the bearing column is 20%-40% of the building height.

[0010] The buttresses are in number or more and are evenly distributed in the circumferential direction of the building column.

[0011] The bottoms of the buttresses are respectively provided with buttress stress-bearing layers.

[0012] A plurality of bearing columns are evenly distributed in the bottom foundation at positions corresponding to the buttresses.

[0013] The supporting columns are arranged in an upright, oblique or cross shape.

[0014] The embedded steel bars inside the central load-bearing column are integrated with the embedded steel bars in the center of the building column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model adopts a uniformly distributed multiple bearing columns arranged in different forms and a central load-bearing column to bear the load together, which disperses the foundation load and effectively disperses the total weight of the wall; and strengthens the stability of the wall, prevents the wall from shaking, and improves the seismic strength;

[0017] At the same time, the design of evenly distributed buttresses around the building columns increases the force-bearing area and buffer distance, disperses the earthquake shear force, and provides good stability and earthquake resistance for the building;

[0018] Its overall structural design is reasonable, the operation is simple, the construction is convenient, the construction period is short, and the seismic strength is high. Through the intricate combination design of buttresses and load-bearing columns, the actual construction needs and the moisture-proof and seismic coefficient of the building are improved, effectively changing the damage to the building caused by earthquake shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the main cross-sectional view of the utility model;

[0020] Figure 2It is a bottom view of the utility model;

[0021] Figure 3 It is a top view of the utility model;

[0022] Figure 4 It is a vertical arrangement diagram of the load-bearing columns of the utility model;

[0023] Figure 5 It is the inclined arrangement diagram of the load-bearing column of the utility model;

[0024] Figure 6 This is a cross-arrangement diagram of the load-bearing columns of the utility model.

[0025] Reference numerals:

[0026] 1. Bottom foundation; 2. Bearing column; 3. Central load-bearing column; 4. Steel bars; 5. Shock-absorbing buffer layer; 6. Anti-seepage layer; 7. Buttress load-bearing layer; 8. Building column; 9. Buttress. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See attached Figure 1-6 ;

[0029] A buttress-type multi-pile-column seismic foundation structure comprises a plurality of groups of spaced-apart bearing units pre-buried in a bottom foundation 1, wherein the bearing units are respectively composed of a plurality of bearing columns 2 and a central load-bearing column 3, and the plurality of bearing columns 2 are distributed around the central load-bearing column 3, a shock-absorbing buffer layer 5 is laid on the upper part of the bottom foundation 1, an impermeable layer 6 is provided on the upper part of the shock-absorbing buffer layer, the bearing columns 2 and the central load-bearing column 3 both pass through the shock-absorbing buffer layer 5 and the impermeable layer 6, a building column 8 centered on the corresponding position directly above the central load-bearing column 3 is arranged above the impermeable layer, and a plurality of buttresses 9 are distributed around the lower part of the building column 8.

[0030] Furthermore, multiple steel bars 4 are embedded inside the bearing column and the central load-bearing column. The method of embedding steel bars makes each bearing unit have high strength. The depth of the bearing column 2 is 20%-40% of the building height, and its height setting meets the performance of the weighing support.

[0031] Furthermore, the number of buttresses 9 is more than 3, and they are evenly distributed in the circumferential direction of the building column 8; the design of evenly distributing buttresses around the building column increases the force-bearing area and buffer distance, disperses the earthquake shear force, and provides good stability and earthquake resistance for the building. Buttress bearing layers 7 are respectively provided at the bottom of the buttresses 9. Multiple bearing columns 2 are evenly distributed in the bottom foundation at the corresponding position of the buttresses 9.

[0032] Furthermore, the supporting columns 2 are arranged in various forms such as upright, oblique or cross shapes. Figure 4 The middle bearing column 2 is in an upright position. Figure 5 The middle bearing column 2 is arranged in an inclined structure, and the inclination direction is toward the central load-bearing column 3. Figure 5 The adjacent bearing columns 2 are distributed in a cross shape.

[0033] Moreover, the embedded steel bars inside the central load-bearing column 3 and the embedded steel bars in the center of the building column 8 are integrated; when selecting the steel bars, the quality must be guaranteed, and there must be no defects such as broken roots and cracks in the middle. Figure 1 In the figure, the embedded steel bars inside the central load-bearing column 3 and the center of the building column 8 are embedded as a whole structure from top to bottom.

[0034] All the load-bearing units in the above structure adopt multiple evenly distributed load-bearing columns in different layouts and central load-bearing columns to bear the load together, which disperses the foundation load and effectively disperses the total weight of the wall; it also strengthens the stability of the wall, prevents the wall from shaking, and improves the seismic strength. The anti-seepage layer refers to the anti-seepage measures (such as asphalt materials) taken on the surface of the concrete wall that contacts the soil to prevent external groundwater from seeping into the foundation pit; the buttresses strengthen the support around the building column, improve the rigidity and integrity of the structure, increase the force-bearing area and buffer distance, ensure the stability of the bottom support, disperse the seismic shear force, and play a good role in the stability and seismic resistance of the building. The overall structural design is reasonable, simple to operate, convenient to construct, short construction period, high seismic strength, and through the intricate and in-depth combination design of buttresses and load-bearing columns, the actual construction needs and the moisture-proof and seismic coefficient of the building are improved, effectively changing the damage of earthquake shaking to the building.

[0035] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0036] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A buttress-type multi-pile earthquake-resistant foundation structure, characterized in that: The invention comprises a plurality of groups of load-bearing units pre-buried in a bottom foundation (1) and distributed at intervals, wherein the load-bearing units are respectively composed of a plurality of load-bearing columns (2) and a central load-bearing column (3), and the plurality of load-bearing columns (2) are distributed at positions around the central load-bearing column (3). A shock-absorbing buffer layer (5) is laid on the upper part of the bottom foundation (1), and an anti-seepage layer (6) is provided on the upper part of the shock-absorbing buffer layer. The load-bearing columns (2) and the central load-bearing column (3) both pass through the shock-absorbing buffer layer (5) and the anti-seepage layer (6). A building column (8) centered at a corresponding position directly above the central load-bearing column (3) is arranged above the anti-seepage layer, and a plurality of buttresses (9) are distributed around the lower part of the building column (8).

2. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 1, characterized in that: A plurality of steel bars (4) are pre-embedded inside the load-bearing column and the central load-bearing column.

3. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 1, characterized in that: The depth of the bearing column (2) is 20%-40% of the building height.

4. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 1, characterized in that: The number of the buttresses (9) is more than 3 and they are evenly distributed in the circumferential direction of the building column (8).

5. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 4, characterized in that: The bottoms of the buttresses (9) are respectively provided with buttress stress-bearing layers (7).

6. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 1, characterized in that: A plurality of bearing columns (2) are evenly distributed in the bottom foundation at positions corresponding to the buttresses (9).

7. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 1 or 6, characterized in that: The bearing columns (2) are arranged in an upright, oblique or cross shape.

8. The buttress-type multi-pile earthquake-resistant foundation structure according to claim 2, characterized in that: The embedded steel bars inside the central load-bearing column (3) and the embedded steel bars in the center of the building column (8) are integrated into one.

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