CN210622421U

CN210622421U - A kind of building seismic isolation bearing

Info

Publication number: CN210622421U
Application number: CN201921486539.7U
Authority: CN
Inventors: 舒唯; 王枭; 李坤建; 段文川; 伍任雄
Original assignee: Chongqing University; Chongqing Construction Engineering Group Co Ltd; Chongqing Construction Residential Engineering Co Ltd
Current assignee: Chongqing University; Chongqing Construction Engineering Group Co Ltd; Chongqing Construction Residential Engineering Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-26
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a seismic isolation bearing for buildings, which comprises a lower support pier and an upper support pier which are symmetrically arranged in structure. The "U"-shaped steel bars are staggered along the transverse direction and the longitudinal direction, and a plurality of reinforcing ties arranged at intervals along the height direction are connected between the two vertical sections of each inverted "U"-shaped steel bar; Compared with the prior art, the lower support pier in the seismic isolation bearing of the building and the mesh steel structure in the upper support pier are formed by a plurality of inverted "U"-shaped steel bars and reinforcing tie bars according to a certain arrangement, and then poured. After the concrete is formed, the lower pier and the upper pier can bear a certain external force in the lateral or longitudinal direction, and have sufficient structural strength to meet the needs of use.

Description

Building shock insulation support

Technical Field

The utility model relates to a building shock attenuation technical field, concretely relates to building shock insulation support.

Background

The seismic isolation technology is one of the most important achievements in the seismic engineering world at home and abroad in forty years, and has clear principle, reliable performance and easy operation. The traditional method comprises the following steps: rigid connection modes such as angle steel, reinforced embedded parts or thickened steel bars are added at the joints of the structures, and the structures are usually integrally damaged in the earthquake action. The shock absorption technology plays an increasingly important role in earthquake-proof measures of buildings in recent years, the rubber shock-insulation support is used as one of shock absorption technologies, and the shock insulation technology is a technical means for realizing energy dissipation and shock absorption and lightening earthquake damage by adding a spring layer, namely a shock insulation layer, between upper and lower structures of the building. The seismic energy input into the structure is absorbed by energy dissipation elements of the seismic isolation layer, the structural deformation is reduced, and the seismic isolation layer is damaged first even if the seismic energy is damaged, so that the whole structure is protected, and the structural safety is improved.

The seismic isolation layer is composed of a seismic isolation support and a damping device, is generally arranged between a foundation and an upper structure to form a horizontal weak layer, so that the self-vibration period of the structure is prolonged to avoid the excellent period of seismic oscillation, the resonance effect of a building structure and the seismic oscillation is eliminated, the seismic reaction of the structure is reduced, and the structure can be effectively protected from being damaged by the earthquake.

The existing shock insulation support mainly comprises a lower buttress, an upper buttress and a shock insulation structure connected between the lower buttress and the upper buttress, wherein the internal structures of the lower buttress and the upper buttress are insufficient in structural strength for some regions with frequent vibration.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a building isolation bearing to solve among the prior art, to some frequent areas of vibrations, the problem that the internal strength of lower buttress and last buttress in the isolation bearing is not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a building isolation bearing, includes lower buttress and the upper buttress that the structure symmetry set up, lower buttress is formed by netted steel bar structure concreting, and netted steel bar structure includes that it forms along horizontal direction and vertical direction are crisscross by a plurality of "U" type reinforcing bars of falling, and is connected with a plurality of enhancement lacing wires along direction of height interval arrangement between each two vertical sections of falling "U" type reinforcing bar.

Compared with the prior art, the utility model discloses following beneficial effect has:

this netted steel bar structure in lower buttress and the upper buttress in the building isolation bearing forms according to certain arrangement mode by a plurality of "U" type reinforcing bars of falling with the enhancement lacing wire, then pours the concrete shaping back, can make lower buttress and upper buttress bear certain along horizontal or vertical ascending external force, has sufficient structural strength, can satisfy the user demand.

Drawings

Fig. 1 is a sectional view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

reference numerals in the drawings of the specification include: the shock insulation support structure comprises a lower buttress 1, an upper buttress 2, a shock insulation support structure 3, inverted U-shaped steel bars 11, reinforcing tie bars 12, prefabricated steel plates 13, a top plate 31, a bottom plate 32, a lead core rod 33, an elastic shock absorption cylinder 34, a sealing plate 35, a rubber protective sleeve 36, a threaded sleeve rod 4, embedded anchor bars 5, bolts 6, a reinforcing piece 7, a main frame plate 71 and a triangular plate 72.

Examples

Referring to FIG. 1: the utility model provides a building isolation bearing, including buttress 1 down, go up buttress 2 and connect isolation bearing structure 3 between buttress 1 and last buttress 2 down, the structural symmetry setting of buttress 1 and last buttress 2 down, wherein, buttress 1 is formed by network steel bar structure concreting down, network steel bar structure includes that it forms along horizontal direction and longitudinal direction crisscross to fall "U" type reinforcing bar by a plurality of, and each falls and is connected with a plurality of enhancement lacing wires 12 along direction interval arrangement between two vertical sections of "U" type reinforcing bar.

The utility model discloses a vibration isolation support structure 3 that adopts includes roof 31 that links to each other with upper buttress 2 and bottom plate 32 that links to each other with lower buttress 1, links to each other through lead core pole 33 between roof 31 and the bottom plate 32, and the outside cover of lead core pole 33 is equipped with elastic damping cylinder 34, and the both ends of elastic damping cylinder 34 are provided with respectively to overlap the shrouding 35 that establishes on lead core pole 33 and offsets with roof 31 or bottom plate 32, and the outside cover of elastic damping cylinder 34 is equipped with the rubber protective sheath 36 of connecting between roof 31 and bottom plate 32; the elastic shock absorption cylinder 34 comprises a plurality of elastic rubber rings and a plurality of rigid steel plate rings which are sleeved outside the lead core bar 33 and are alternately arranged along the axial direction of the lead core bar; the structural design of the shock insulation support structure 3 is to form a horizontal weak layer between the foundation and the upper structure in order to enable the shock insulation support structure to have high rigidity and bearing capacity, so that the natural vibration period of the structure is prolonged to avoid the excellent period of earthquake motion, the resonance effect of a building structure and the earthquake motion is eliminated, the earthquake reaction of the structure is reduced, and the structure can be effectively protected from earthquake damage.

The top of the lower support pier 1 is embedded with a prefabricated steel plate 13, the prefabricated steel plate 13 and the bottom plate 32 are fixed through a plurality of bolt 6 connecting assemblies embedded into the net-shaped steel bar structure, each bolt 6 connecting assembly comprises a threaded sleeve rod 4, an embedded anchor bar 5 and a bolt 6, one end of each threaded sleeve rod 4 is fixedly connected with the prefabricated steel plate 13, the other end of each threaded sleeve rod 4 penetrates through the upper side of the net-shaped steel bar structure, a screw of each bolt 6 penetrates through the prefabricated steel plate 13 and the bottom plate 32 and then is embedded into the threaded sleeve rod 4 to be in threaded connection with the upper side of the threaded sleeve rod 4, one end of each embedded anchor bar 5 is embedded into the threaded sleeve rod 4 to be in threaded connection with the lower side of the threaded sleeve rod 4, and the other end of each embedded anchor bar 5; through the structural design of 6 coupling assembling of bolt, make its quick connect lower buttress 1 and isolation bearing structure 3, and make and have sufficient joint strength after buttress 1 and isolation bearing structure 3 are connected down, the structure in the buttress 1 can further strengthen the structural strength in the buttress 1 down in the 6 coupling assembling of bolt embedding simultaneously.

In order to improve the tensile strength of the embedded anchor bar 5 in the lower buttress 1, the embedded anchor bar 5 comprises a vertical rod part and a transverse rod part connected to the lower end of the vertical rod part, and the connecting point of the vertical rod part and the transverse rod part is positioned in the middle of the transverse rod part; the axial tension between the connecting components of the resisting bolt 6 can be improved in the embedded anchor bars 5 through the connecting mode of the vertical rod part and the horizontal rod part.

In order to further strengthen the connection strength between the lower buttress 1, the upper buttress 2 and the vibration-isolating support structure 3, a plurality of reinforcing members 7 distributed along the outer circumferential direction of the bottom plate 32 are connected between the bottom plate 32 and the lower buttress 1, each reinforcing member 7 comprises a main frame plate 71 which is connected between the bottom plate 32 and the lower buttress 1 and is in an L shape, the main frame plates 71 are respectively connected with the bottom plate 32 and the lower buttress 1 through a plurality of bolts 6, two three corner plates 72 arranged in parallel are connected on two sides of the main frame plates 71, and wedge-shaped grooves are formed between the main frame plates 71 and the two three corner plates 72; the weight of the reinforcing element 7 is reduced, given a sufficient structural strength of the reinforcing element 7.

When the shock-insulation support is used, the lower support pier 1 in the shock-insulation support for the building is connected with a foundation, and the upper support pier 2 is connected with the upper structure of the building.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A building seismic isolation bearing, comprising a lower buttress and an upper buttress whose structure is symmetrically arranged, characterized in that, the lower buttress is formed by pouring concrete from a reticulated reinforced structure, and the reticulated reinforced structure comprises a plurality of The inverted "U"-shaped steel bars are staggered along the transverse direction and the longitudinal direction, and a plurality of reinforcing ties arranged at intervals along the height direction are connected between two vertical sections of each inverted "U"-shaped steel bar.

2 . The seismic isolation bearing of a building according to claim 1 , further comprising a seismic isolation support structure connected between the lower support pier and the upper support pier, and the seismic isolation support structure comprises a structure connected to the upper support pier 2 . The connected top plate and the bottom plate connected to the lower support pier are connected by a lead core rod. The outer side of the lead core rod is sleeved with an elastic shock-absorbing cylinder, and both ends of the elastic shock-absorbing cylinder are respectively set with sleeves sleeved on the lead core rod. The sealing plate on the core rod and against the top plate or the bottom plate, the outer side of the elastic shock-absorbing cylinder is provided with a rubber protective sleeve connected between the top plate and the bottom plate.

3. A building seismic isolation bearing according to claim 2, characterized in that: the elastic damping cylinder comprises a plurality of elastic rubber rings and Multiple rigid steel plate circles.

4. A building seismic isolation bearing according to claim 2 or 3, characterized in that: the top of the lower pier is embedded with a prefabricated steel plate, and between the prefabricated steel plate and the bottom plate, a plurality of embedded reticular steel structures are formed. The inner bolt connection components are fixed. The bolt connection components include threaded sleeve rods, pre-embedded anchor bars and bolts. One end of the threaded sleeve rods is fixedly connected to the prefabricated steel plate, and the other end of the threaded sleeve rods penetrates into the inner and upper side of the mesh steel structure. The threaded rod of the bolt passes through the prefabricated steel plate and the bottom plate and then is embedded in the threaded sleeve rod to be threadedly connected to the upper side of the threaded sleeve rod screw. The other end of the anchor bar is penetrated to the inner and lower side of the mesh reinforcement structure.

5 . A building seismic isolation bearing according to claim 4 , wherein the pre-embedded anchor bars comprise a vertical rod portion and a horizontal rod portion connected to the lower end of the vertical rod portion, and the vertical rod portion and the horizontal rod portion are connected to each other. 6 . The connection point is in the middle of the crossbar section.

6 . The seismic isolation bearing of a building according to claim 2 , wherein a plurality of reinforcement members distributed along the outer circumference of the base plate are connected between the base plate and the lower support pier, and the reinforcement members all include a connection on the bottom plate. There is an "L"-shaped main frame plate between the bottom plate and the lower support pier. The main frame plate is connected with the bottom plate and the lower support pier through a plurality of bolts, and two triangular plates arranged in parallel are connected on both sides of the main frame plate. A wedge-shaped groove is formed between the two triangular plates.