CN203684247U

CN203684247U - Earthquake-resistant foundation of multi-story building

Info

Publication number: CN203684247U
Application number: CN201320831172.4U
Authority: CN
Inventors: 吴祚菊; 毕俊伟
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-07-02
Anticipated expiration: 2023-12-16

Abstract

The utility model discloses an earthquake-resistant foundation of a multi-story building. The earthquake resistance of the multi-story building in a high earthquake occurrence region or a region with relatively high earthquake intensity is improved, and the multi-story building structure is prevented from being directly broken under the action of an earthquake, so that casualties are avoided. The earthquake-resistant foundation comprises a lower raft, longitudinal tracks, transverse tracks, an upper raft and energy dissipation construction bodies, wherein the lower raft is fixedly connected to the tops of pile foundations; the longitudinal tracks and the transverse tracks are fixedly arranged at the top of the lower raft at intervals in transverse and longitudinal directions; the upper raft is arranged on the longitudinal tracks and the transverse tracks; the multi-story building is positioned on the upper raft and is rigidly connected with the upper raft; the energy dissipation construction bodies are fixedly arranged around the outer side of the lower raft.

Description

A kind of earthquake proof foundation of multistory building

Technical field

The utility model relates to building foundation, particularly a kind of earthquake proof foundation of multistory building.

Background technology

Constantly perfect along with high-rise (more than 30 layers) room layer anti-seismic technology, and the anti-seismic problem of multistoried building has day by day become the weak link of design, its safety issue is highlighted day by day, and in the Wenchuan earthquake of 2008, more than 70% building is the destruction of multistory brick-and-concrete structure.Present stage, the earthquake research of multistoried building was also in the starting stage, still there is no special earthquake proof foundation design.In the house of earthquake-prone region, also just in the strip foundation of interior exterior wall, configure a certain proportion of horizontal reinforcement, the powerful shear stress producing to resist geological process.This traditional, relatively simple anti-shock methods tends to make basic intensity too high; and three layers of making building structure become the rich weak link of geological process below; first, second and third layer usually can directly shred under geological process, thereby causes a large amount of casualtiess.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of earthquake proof foundation of multistory building, to improve in earthquake-prone region or the anti-seismic performance of the relatively high regional multistory building of earthquake intensity, avoid multi-layer construction structure directly to be shredded under geological process, thus the casualties of avoiding.

It is as follows that the utility model solves the technical scheme that its technical problem adopts:

The earthquake proof foundation of a kind of multistory building of the present utility model, is characterized in that it comprises: lower floor's raft plate, is fixedly connected on the top of pile foundation; Long rails and cross track, horizontal, longitudinal separation is fixedly installed on lower raft plate top; Upper strata raft plate, is placed in long rails and transverse rails, and multistory building is positioned on the raft plate of upper strata and is rigidly connected with it; Power consumption tectosome, is fixedly installed on surrounding outside lower raft plate.

The beneficial effects of the utility model are, can effectively seismic energy be dissipated safely, be discharged, improve in earthquake-prone region or the anti-seismic performance of the relatively high regional multistory building of earthquake intensity, avoid multi-layer construction structure directly to be shredded under geological process, thus the casualties of avoiding.

Accompanying drawing explanation

This manual comprises following four width accompanying drawings:

Fig. 1 is the profile of the earthquake proof foundation of a kind of multistory building of the utility model;

Fig. 2 is the plan view of the earthquake proof foundation structure of a kind of multistory building of the utility model;

Fig. 3 is the section partial enlarged drawing of the earthquake proof foundation of a kind of multistory building of the utility model;

Fig. 4 is the section partial enlarged drawing of the earthquake proof foundation of a kind of multistory building of the utility model.

The title of member shown in figure and corresponding mark: multistory building 10, the key 11 that is rigidly connected, upper strata raft plate 20, long rails 21, cross track 22, sliding shackle 23, elastic telescopic member 24, lower floor's raft plate 30, pile foundation 31, pile foundation rubble filler 31a, pile foundation high-intensity fiber integument 31b, rigid connection member 32, power consumption tectosome 40, elastic telescopic body 41, antidetonation flexible block 42, damping unit 43

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

See figures.1.and.2, the earthquake proof foundation of a kind of multistory building of the present utility model comprises: lower floor's raft plate 30, is fixedly connected on the top of pile foundation 31; Long rails 21 and cross track 22, horizontal, longitudinal separation is fixedly installed on lower raft plate 30 tops; Upper strata raft plate 20, is placed on long rails 21 and cross track 22; Multistory building 10, is positioned on upper strata raft plate 20, and is rigidly connected with it; Power consumption tectosome 40, is fixedly installed on the outside surrounding of lower raft plate 30, to limit the over-large displacement of upper raft plate 20 under geological process, meanwhile, utilizes again the huge energy that elastic deformation absorbs, dissipation earthquake produces of self.

Fig. 3 and Fig. 4 show the detailed arrangement form of one of power consumption tectosome 40, the tectosome 40 that consumes energy comprises the antidetonation flexible block 42 outside elastic telescopic body 41 and the four jiaos of sidewalls that are fixedly installed on outside upper strata raft plate 20 middle part sidewalls, and is fixedly installed on the damping unit 43 of upper strata raft plate 20 sidewalls and antidetonation flexible block 42.

In the time that earthquake occurs, multistory building 10 moves together with upper strata raft plate 20, constantly energy by collision tectosome 40 repeatedly, and there is elastic deformation in power consumption tectosome 40, thereby seismic energy is dissipated safely, discharged.With time simultaneously, the damping unit 43 being contained between antidetonation flexible block 42 and upper strata raft plate 20 can play a role immediately, constantly absorbs the energy that earthquake produces, and displacement and amplitude that Mei Touch hits are reduced gradually, stops until vibrating.

With reference to Fig. 4, what described upper strata raft plate 20 arranged by distribution be rigidly connected key 11 is connected with lower floor raft plate 30, and the key 11 that is rigidly connected can adopt strong concrete key conventionally.Without geological process under normal circumstances, these keys 11 that are rigidly connected play an important role the wind resistance of multistory building 10, prevent multistory building 10 under wind-force effect and topple.When geological process, these keys 11 fractures automatically under seismic forces impacts that are rigidly connected, allow upper strata raft plate 20 longitudinally track 21 or cross track 22 be free to slide, hit with power consumption tectosome 40 Fa Sheng Touch and produce elastic dissipation energy.

With reference to Fig. 3, in order further to prevent that multistory building 10 from toppling under wind-force effect, except the key 11 that is rigidly connected arranging that distributes, between upper strata raft plate 20 and long rails 21, cross track 22, be provided with sliding shackle 23.Described long rails 21, cross track 22 are fixedly installed on by rigid connection member 32 in the groove on lower floor's raft plate 30 tops, between long rails 21, cross track 22 and recess sidewall, elastic telescopic member 24 are set.These sliding shackles 23 are all locked at ordinary times, and under the fierce impact of earthquake, sliding shackle 23 can be opened automatically, allow upper strata raft plate 20 long rails 21 or cross track 22 be free to slide.

With reference to Fig. 4, in order to strengthen the anti-seismic performance of lower floor's raft plate 30 place grounds, greatly increase the stability of foundation under geological process, pile foundation 31 adopts parcel Subgrade Consolidation with Gravel Pile bearing stratum, and pile foundation 31 is made up of the pile foundation high-intensity fiber integument 31b of pile foundation rubble filler 31a and its external surface of parcel.

Some principles of the earthquake proof foundation of the above a kind of multistory building of the utility model that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.

Claims

1. an earthquake proof foundation for multistory building, is characterized in that it comprises: lower floor's raft plate (30), is fixedly connected on the top of pile foundation (31); Long rails (21) and cross track (22), horizontal, longitudinal separation is fixedly installed on lower raft plate (30) top; Upper strata raft plate (20), is placed in long rails (21) and cross track (22) upper, and multistory building (10) is positioned at upper strata raft plate (20) above and is rigidly connected with it; Power consumption tectosome (40), is fixedly installed on lower raft plate (30) outside surrounding.

2. the earthquake proof foundation of a kind of multistory building as claimed in claim 1, it is characterized in that: described power consumption tectosome (40) comprises the elastic telescopic body (41) that is fixedly installed on outside the sidewall of upper strata raft plate (20) middle part and the antidetonation flexible block (42) outside four jiaos of sidewalls, and be fixedly installed on the damping unit (43) of upper strata raft plate (20) sidewall and antidetonation flexible block (42).

3. the earthquake proof foundation of a kind of multistory building as claimed in claim 1, is characterized in that: the key that is rigidly connected (11) that described upper strata raft plate (20) arranges by distribution is connected with lower floor's raft plate (30).

4. the earthquake proof foundation of a kind of multistory building as claimed in claim 1, is characterized in that: between described upper strata raft plate (20) and long rails (21), cross track (22), be provided with sliding shackle (23).

5. the earthquake proof foundation of a kind of multistory building as claimed in claim 4, it is characterized in that: described long rails (21), cross track (22) are fixedly installed on by rigid connection member (32) in the groove on lower floor's raft plate (30) top, between long rails (21), cross track (22) and recess sidewall, elastic telescopic member (24) are set.

6. the earthquake proof foundation of a kind of multistory building as claimed in claim 1, is characterized in that: described pile foundation (31) is made up of the pile foundation high-intensity fiber integument (31b) of pile foundation rubble filler (31a) and its external surface of parcel.