EP2553176A2 - Seismic insulating structure for existing buildings - Google Patents

Seismic insulating structure for existing buildings

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
German (de)
French (fr)
Other versions
EP2553176B1 (en
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/en
Application granted granted Critical
Publication of EP2553176B1 publication Critical patent/EP2553176B1/en
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)

Abstract

A seismic insulating structure (1) for buildings consists of an; insulating platform (2) arranged under the foundations| (3) of a building (3a) and comprising a top block (4), a bottom block (5) separated from the top block (4), a plurality of seismic insulators (6) arranged between the top block (4) and the bottom block (5), an inner underground wall (7) fixed on the bottom to the top block (4) and arranged so as to contain the ground that surrounds said building (3a) and an outer underground wall (8) fixed at the bottom to the bottom block (5) and arranged about said inner underground wall (7); said inner underground wall (7) and said outer underground wall (8) combinedly defining a seismic joint for their entire height (9).

Description

SEISMIC INSULATING STRUCTURE FOR EXISTING BUILDINGS
TECHNICAL FIELD
The present invention relates to a seismic insulating structure for existing buildings.
BACKGROUND ' ART
In general, 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. Indeed, a building provided with , seismic insulation at the base may withstand a violent seismic event remaining within the
i
elastic field and consequently without being damaged.
Recent constructions in Japan (in particular the so-called "artificial ground") and China have proven the possibility of [Constructing complex buildings on large sized, insulated platforms. Other examples of buildings made with seismic insulation are the new school in San Giuliano di Puglia and the recent C.A.S.E. Project, built in L'Aquila after the 2009 earthquake.
Until today, seismic insulation techniques mainly
i
i
concerned new j constructions, above all made of reinforced concrete, for which the saving on construction cost sometimes is even competitive with respect to traditional techniques, at least in highly seismic zones. On the contrary, the application of seismic insulating techniques to existing buildings has yet to meet with success. The reasons for this are to be sought particularly in difficulties of execution and costs, which are not always sustainable. Another matter are buildings of historical-artistic interest, for which while on one hand the economic issue is less binding, on the other, problems of execution are multiplied given the incalculable value of their historical and artistic heritage. Indeed, buildings of historical-artistic interest are often considered "untouchable" to foundation level and the presence of basements and/or crypts, decorated floors and valuable wall decorations make application of seismic insulation, for example by cutting the walls at the base, often impracticable.
It is thus understandable the need for new seismic insulating systems, which fulfill the important and often conflicting needs of structural safety and preservation of value and historic-artistic heritage.
DISCLOSURE ; OF INVENTION
It is the object of the present invention to make a seismic insulating structure, the technical features of which are such to guarantee the application thereof also to existing buildings of historical-artistic interest, and which does not have exaggeratedly high implementation costs at the same time.
It is the object of the present invention a seismic insulating structure, the essential features of which are illustrated in claim 1, and the preferred and/or
I
auxiliary features of which are illustrated in claims 2- i
5.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the invention, an embodiment will be described by way of non-limitative example only, with the aid of the figures of the accompanying drawing, in which:
figures la and lb are two views of a first step of implementation of the seismic insulating structure according to the present invention;
figures 2a and 2b are two views of a second step of implementation ; of the seismic insulating structure according to the present invention;
figures 3a! and 3b are two views of a third step of implementation , of the seismic insulating structure according to the present invention;
figures 4a and 4b are two views of the seismic insulating structure according to a preferred embodiment of the present invention; and
figures 5a and 5b are two views of the seismic insulating structure according to a further preferred embodiment of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
In figures 4a and 4b, 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
i
under the foundations 3 of the building 3a to which the structure 1 is intended to be applied, and comprising, in turn, a top block 4, a bottom block 5 separated from the top block 4, a plurality of seismic insulators 6 arranged between the top block 4 and the bottom block 5. 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.
In particular, 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.
In particular, the 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 .
Otherwise, 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. In figures 5a and 5b, 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
i
between the same. Alternatively or additionally, 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.
At the positions of the seismic insulators 6, 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 .
Connections of concrete or other material are made between the adjacent top caps 10a in which the top brackets of the insulators 6 are embedded after having arranged the seismic insulators 6.
Finally, the removable elements 11 are removed, creating the discontinuity between 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.
As inferred from the description above, 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.
Furthermore, between the foundations 3 of the building 3a and the upper caps 10a of the tubes 10, 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.
Finally, the structure of the present invention allows to make large insulated platforms, particularly suitable for structural aggregates of even considerable

Claims

1. A seismic insulating structure (1) for buildings characterized by comprising an insulating platform (2) arranged under the foundations (3) of a building (3a) and comprising: a top block (4), a bottom block (5) separated from the top block (4) , a plurality of seismic insulators (6) arranged between the top block (4) and the bottom block (5), an inner underground wall (7) fixed on the bottom to the top block (4) and arranged so as to contain the ground that surrounds said building (3a) and an outer underground wall (8) fixed on the bottom to the bottom block (5) and arranged about said inner underground wall (7); said inner underground wall (7) and said outer underground wall (8) defining a seismic joint for their entire height (9).
2. The seismic insulating structure according to claim 1, characterized in that said insulating platform (2) comprises a plurality of tubes (10) arranged side by side in a horizontal position; each of said tubes (10) consisting of a top cap (10a) and a bottom cap (10b) separate from one another and between which a plurality of seismic insulators (6) is housed; each of the top caps (10a) being rigidly connected to the adjacent top caps (10a) , so as to form said top block (4) and each of the bottom caps (10b) being rigidly connected to the adjacent bottom caps (10b) , so as to form said bottom block (5) . I
3. The seismic insulating structure according to claim 2, characterized in that said tubes (10) are made of concrete and have a cylindrical structure.
4. The seismic insulating structure according to claim 3, characterized by comprising concrete connections between the different top caps (10a) and between the different bottom caps (10b) .
5. The seismic insulating structure according to any of the preceding claims, characterized by comprising a rigid connection (21) between the inner underground wall (7) and said building (3a).
6. A process for making a seismic insulating structure; said process being characterized by comprising in a sequence:
- a step of introducing a plurality of tubes (10) under the foundations (3) of a building (3a) to be seismically insulated; said tubes (10) being formed by a top portion (10a) and a bottom portion (10b) connected to one another by means of a plurality of removable elements (11) ;
- a first istep of connecting the different bottom portions (10b) to form a single bottom block (5) ;
- a step of positioning a plurality of seismic insulators (6) between the top portions (10a) and the bottom portions (10b);
- a second step of connecting the different top portions (10a) to form a single top block (4);
- a step of removing the removable elements (11) ;
- a step of forming both an inner underground wall ί
(7) arranged to contain the ground that surrounds the building (3a) and rigidly connected to the top block (4), and an outer underground wall (8) arranged externally to said inner wall (7) and rigidly connected to the lower block (5) .
7. The process according to claim 6, characterized in that said tubes (10) are made of concrete.
8. The process according to claim 7, characterized in that said steps of connecting the different bottom portions (10b) and the different top portions (10a) take place by means of concrete.
9. The process according to one of claims 6 to 8, characterized in that said step of introducing the plurality of tubes (10) takes place by means of the "auger boring" or "guided auger boring" technique.
EP11724737.9A 2010-04-02 2011-04-02 Seismic insulating structure for existing buildings Not-in-force EP2553176B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2010A000158A IT1399253B1 (en) 2010-04-02 2010-04-02 SEISMIC INSULATION STRUCTURE FOR EXISTING BUILDINGS
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 (en) 2013-02-06
EP2553176B1 EP2553176B1 (en) 2017-08-23

Family

ID=43447035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11724737.9A Not-in-force EP2553176B1 (en) 2010-04-02 2011-04-02 Seismic insulating structure for existing buildings

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674494A1 (en) * 2018-12-28 2020-07-01 Takkenkamp Innovatie B.V. A method for insulating a ground floor of a building

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CN104895120A (en) * 2014-09-17 2015-09-09 国家电网公司 Basic shock isolating system for interconnecting electric equipment
IT201800005642A1 (en) * 2018-05-23 2019-11-23 ANTI-SEISMIC BASE FOR NEW BUILDING STRUCTURES
CN118187519B (en) * 2024-05-20 2024-07-30 蒲正建设集团有限公司 Steel column foot reinforced structure

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US981884A (en) * 1909-03-11 1911-01-17 Otto Ruhl Earthquake-proof building.
JP3685842B2 (en) * 1995-06-26 2005-08-24 三井住友建設株式会社 How to replace the base isolation and seismic isolation device
US7160061B2 (en) * 2000-12-04 2007-01-09 Battelle Energy Alliance, Llc Subterranean barriers including at least one weld
JP5285254B2 (en) * 2007-09-19 2013-09-11 株式会社竹中工務店 Rebuilding method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674494A1 (en) * 2018-12-28 2020-07-01 Takkenkamp Innovatie B.V. A method for insulating a ground floor of a building
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 (en) 2017-08-23
IT1399253B1 (en) 2013-04-11
WO2011121439A2 (en) 2011-10-06
ITRM20100158A1 (en) 2011-10-03

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