EP2553176A2 - Seismische isolierstruktur für bestehende gebäude - Google Patents

Seismische isolierstruktur für bestehende gebäude

Info

Publication number
EP2553176A2
EP2553176A2 EP11724737A EP11724737A EP2553176A2 EP 2553176 A2 EP2553176 A2 EP 2553176A2 EP 11724737 A EP11724737 A EP 11724737A EP 11724737 A EP11724737 A EP 11724737A EP 2553176 A2 EP2553176 A2 EP 2553176A2
Authority
EP
European Patent Office
Prior art keywords
seismic
block
underground wall
tubes
caps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11724737A
Other languages
English (en)
French (fr)
Other versions
EP2553176B1 (de
Inventor
Paolo Clemente
Alessandro De Stefano
Giovanni Barla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Original Assignee
Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Politecnico di Torino
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA, Politecnico di Torino filed Critical Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Publication of EP2553176A2 publication Critical patent/EP2553176A2/de
Application granted granted Critical
Publication of EP2553176B1 publication Critical patent/EP2553176B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/48—Foundations inserted underneath existing buildings or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/34—Foundations for sinking or earthquake territories
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil

Definitions

  • the present invention relates to a seismic insulating structure for existing buildings.
  • seismic insulation is based on the drastic reduction of seismic actions which challenge the structures, instead of relying on the strength of the structures themselves, thus allowing to obtain a degree of safety not achievable otherwise.
  • a building provided with , seismic insulation at the base may withstand a violent seismic event remaining within the
  • FIGS. la and lb are two views of a first step of implementation of the seismic insulating structure according to the present invention.
  • FIGS. 2a and 2b are two views of a second step of implementation ; of the seismic insulating structure according to the present invention.
  • FIGS. 3a! and 3b are two views of a third step of implementation , of the seismic insulating structure according to the present invention.
  • FIGS. 4a and 4b are two views of the seismic insulating structure according to a preferred embodiment of the present invention.
  • FIGS. 5a and 5b are two views of the seismic insulating structure according to a further preferred embodiment of the present invention.
  • numeral 1 illustrates as a whole a preferred embodiment of the seismic insulating structure according to the present invention.
  • the structure 1 comprises an insulating platform 2 arranged
  • Structure 1 further comprises an inner underground wall 7 fixed on the bottom to the top block 4 of the insulating platform 2 and arranged so as to contain the ground that surrounds building 3a, and an outer underground wall 8 fixed on the bottom to the bottom block 5 and arranged about the inner underground wall 7.
  • the inner underground wall 7 and the outer underground wall 8 combinedly define a seismic joint 9 made from a trench in the ground.
  • the insulating platform 2 consists of a plurality of tubes 10 arranged side by side in a horizontal position under the foundations 3.
  • the tubes are made of concrete and have a cylindrical structure.
  • Each tube 10 consists of a top cap 10a and a bottom cap 10b separate from one another and between which a plurality of seismic insulators 6, of known type, is housed.
  • Each top cap 10a is rigidly connected to the adjacent top cap 10a, so as to form the top block 4, which thus consists of all the top caps 10a of the tubes 10.
  • Each bottom cap 10b is rigidly connected to the adjacent bottom cap 10b, so as to form the bottom block 5, which thus consists of all the bottom caps 10a of the tubes 10.
  • connections between the various top caps 10a and the various bottom caps 10b may be made by means of a casting of reinforced concrete or other material .
  • the tubes 10 may be made of material other than concrete, and so are the connections, providing they are capable of fulfilling the proper technical requirements of their function, and may have a shape other than cylindrical, for example a square or rectangular section. Furthermore, the tubes 10 may be stiffened by metallic ribs or temporary pillars arranged on site.
  • the distance between the insulating platform 2 and the foundations 3 must be defined on a case by case basis according to specific needs, as well as the distance between the inner underground wall 7 and the walls of the building 3a.
  • the distance between inner underground wall 7 and the outer inner wall 8 (seismic joint 9) depends on the seismic movement determined in design, which can reach several tens of centimeters. Furthermore, a ' plurality of energy dissipaters may be accommodated between the inner underground wall 7 and the outer underground wall 8.
  • numeral 20 shows another embodiment of the seismic insulating structure according to the present invention. The parts of the structure 20 equal to those of the structure 1 will be indicated with the same numbers and will not be described again. Structure 20 differs from structure 1 in that it comprises a rigid connection 21 between the inner underground wall 7 and the building 3a.
  • the rigid connection between the inner underground wall 7 and the building 3a has the purpose of avoiding oscillations
  • the foundations 3 may be connected to the insulating structure by means of appropriate structures (micropiles or other) or ground stiffening/consolidation (injections or other) . ;
  • An underground volume which can be used in various manners, or vehicle transit ways may be obtained between the foundations ' 3 and the insulating platform 2.
  • the size of the tubes guarantees accessibility and consequently possibility of inspecting and replacing the elements, such as the seismic insulators 6.
  • Figures la, lb, 2a, 2b, 3a, 3c show the various steps of implementation of the structure 1 as described below.
  • Figures la, lb, 2a, 2b show the insertion by means of the "auger boring” or “guided auger boring” technique of the concrete tubes 10 having an inner diameter sufficient to allow the installation and subsequent inspection of the insulators.
  • Insertion is carried out after digging a trench along a side of the concerned area. Choosing the most suitable technique depends on the features of the subsoil.
  • the tubes 10, arranged side by side or at an appropriate distance for the subsequent insertion of the seismic insulators 6, must be inserted at a depth to be defined on a case by case basis so as to leave the entire structure unchanged and to allow, when needed, to make an effective connection between foundation and the tubes 10 themselves to possibly obtain a basement.
  • the tubes 10 consist of two caps, top 10a and bottom 10b, connected to one another by means of removable elements 11, appropriately anchored to the caps at two springing lines.
  • Such removable elements 11 must consist of parts which are easy to separate and remove so as to facilitate both the housing of the seismic insulators 6 and the discontinuity between the two caps themselves, after inserting ; the seismic insulators themselves 6.
  • Figures 3a 3b show the insertion of the seismic insulators 6 arid the disconnection between top 10a and bottom 10b caps.
  • the removable elements 11 between the caps 10a and 10b are removed and connections of concrete or other material are made between the adjacent bottom caps 10b, being careful to arrange the housings for the brackets of the insulators .
  • top caps 10a and bottom caps 10b which remain connected only by the insulators 6.
  • Figures 4a and 4b show the structure 1 with the inner 7 and outer 8 underground walls.
  • the inner 7 and outer 8 underground walls are built along the perimeter of the building 3a, at an appropriate distance therefrom to be evaluated on a case by case basis.
  • the inner underground wall 7 must be rigidly connected to the upper block 4, constituted by the top caps 10a, which constitute a "tank" containing the underground part of the building 3a seismically insulated at the base.
  • the outer underground wall 8 is rigidly connected to the bottom block 5, constituted by the bottom caps 10b.
  • the structure of the present invention allows to seismically insulate existing buildings, guaranteeing that the structure and architecture of the building are damaged in any manner, also with regards to possible underground rooms, which are part of the insulated substructure.
  • an underground volume usable in various manner, or vehicle transit ways can be obtained, while the dimensions of the tube guarantee possibility of access and consequently of , inspecting and maintaining the structure as a whole, with particular reference to the seismic insulators 6.
  • the structure of the present invention allows to make large insulated platforms, particularly suitable for structural aggregates of even considerable

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Mining & Mineral Resources (AREA)
  • Hydrology & Water Resources (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Foundations (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP11724737.9A 2010-04-02 2011-04-02 Seismische isolierstruktur für bestehende gebäude Not-in-force EP2553176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2010A000158A IT1399253B1 (it) 2010-04-02 2010-04-02 Struttura di isolamento sismico per edifici esistenti
PCT/IB2011/000716 WO2011121439A2 (en) 2010-04-02 2011-04-02 Seismic insulating structure for existing buildings

Publications (2)

Publication Number Publication Date
EP2553176A2 true EP2553176A2 (de) 2013-02-06
EP2553176B1 EP2553176B1 (de) 2017-08-23

Family

ID=43447035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11724737.9A Not-in-force EP2553176B1 (de) 2010-04-02 2011-04-02 Seismische isolierstruktur für bestehende gebäude

Country Status (3)

Country Link
EP (1) EP2553176B1 (de)
IT (1) IT1399253B1 (de)
WO (1) WO2011121439A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674494A1 (de) * 2018-12-28 2020-07-01 Takkenkamp Innovatie B.V. Verfahren zur isolierung eines erdgeschosses eines gebäudes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104895120A (zh) * 2014-09-17 2015-09-09 国家电网公司 一种用于互连电气设备的基础隔震系统
IT201800005642A1 (it) * 2018-05-23 2019-11-23 Basamento antisismico per strutture edili di nuova costruzione
CN118187519B (zh) * 2024-05-20 2024-07-30 蒲正建设集团有限公司 一种钢柱柱脚加固结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US981884A (en) * 1909-03-11 1911-01-17 Otto Ruhl Earthquake-proof building.
JP3685842B2 (ja) * 1995-06-26 2005-08-24 三井住友建設株式会社 免震基礎及び免震装置の取り換え方法
US7160061B2 (en) * 2000-12-04 2007-01-09 Battelle Energy Alliance, Llc Subterranean barriers including at least one weld
JP5285254B2 (ja) * 2007-09-19 2013-09-11 株式会社竹中工務店 建物建て替え方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011121439A2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674494A1 (de) * 2018-12-28 2020-07-01 Takkenkamp Innovatie B.V. Verfahren zur isolierung eines erdgeschosses eines gebäudes
NL2022323B1 (en) * 2018-12-28 2020-07-23 Takkenkamp Groep B V A method for insulating a ground floor of a building

Also Published As

Publication number Publication date
WO2011121439A3 (en) 2011-12-29
EP2553176B1 (de) 2017-08-23
IT1399253B1 (it) 2013-04-11
WO2011121439A2 (en) 2011-10-06
ITRM20100158A1 (it) 2011-10-03

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