US20060101732A1 - Elevated Building Foundation - Google Patents
Elevated Building Foundation Download PDFInfo
- Publication number
- US20060101732A1 US20060101732A1 US10/904,142 US90414204A US2006101732A1 US 20060101732 A1 US20060101732 A1 US 20060101732A1 US 90414204 A US90414204 A US 90414204A US 2006101732 A1 US2006101732 A1 US 2006101732A1
- Authority
- US
- United States
- Prior art keywords
- building foundation
- ground
- stratum
- elevated
- abutments
- 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.)
- Abandoned
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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
- E02D27/34—Foundations for sinking or earthquake territories
Definitions
- the present invention relates to the 3D earthquake protection of building structures. More particularly, the invention relates to the passive structural control technique.
- FIG. 1 is a 2D view of a building superstructure mounted on an Elevated Building Foundation.
- FIG. 2 depicts an exploded 2D view of a building superstructure mounted on an Elevated Building Foundation.
- the elevated building foundation incorporates a massive horizontal plate ( 1 ) raised above the ground and supported by multiple abutments ( 2 ), those abutments resting on individual footings in the ground ( 3 ).
- the top surface of the plate ( 1 ) bears a protected building superstructure ( 4 ).
- any transmission of seismic wave energy into the superstructure ( 4 ) furnished with the elevated building foundation will be decreased considerably.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Business, Economics & Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
A part of a building structure called the “elevated building foundation” to shield the building structure against 3D components of destructive earthquakes, comprising a massive horizontal plate (1) raised above the level of the ground and underpinned by multiple abutments (2); those abutments (2) are resting on individual footings at the level of the ground (3); the top surface of plate (1) is bearing a protected building superstructure (4). Due to a proper use of materials, sizes, and configuration of the elevated building foundation, the value of impedance of seismic waves that propagate vertically through the horizontal stratum of the elevated building foundation encompassing the abutments (2) is secured such low in comparison with the corresponding values of the stratum of footings in the ground (3) or the stratum of plate (1), that any transmission of seismic wave energy into the superstructure (4) furnished with an elevated building foundation per the current invention will be decreased considerably as a result of reflections, diffractions, and dissipations of the stress energy in a process of multiple wave transformations.
Description
- U.S. Patent Documents
- 5,881,507 March 1999 Yoo et al. 52/167.8
- 5,816,559 October 1998 Fujimoto 248/636
- 5,740,216 April 1998 Morishita 376/285
- 1. Field of the Invention
- The present invention relates to the 3D earthquake protection of building structures. More particularly, the invention relates to the passive structural control technique.
- 2. Description of the Prior Art
- The concept of suppression of seismic energy or diverting its flow from entering a building structure is known as a seismic or base isolation. Normally, this technique needs some sort of pads to be inserted under all major load-carrying elements in a basement of the building. In most of the cases, those pads act as horizontal springs to create a sizable frequency separation required for effective protection of a building structure against lateral earthquake forces. To protect the structure against vertical shaking, a similar approach is engaged: a variety of vertical springs are proposed for underpinning a building superstructure (see, e.g., Yoo et al. 1999, Fujimoto 1998, and Marishita 1998).
- However, due to enormous weight of a building superstructure, its soft suspension happens to be very expensive.
- In the description of invention herein presented, references are made to the accompanying drawings, in which:
-
FIG. 1 is a 2D view of a building superstructure mounted on an Elevated Building Foundation. -
FIG. 2 depicts an exploded 2D view of a building superstructure mounted on an Elevated Building Foundation. - The present invention will be described with reference to the accompanying drawings. As illustrated at
FIG. 1 andFIG. 2 , the elevated building foundation, according to the invention, incorporates a massive horizontal plate (1) raised above the ground and supported by multiple abutments (2), those abutments resting on individual footings in the ground (3). The top surface of the plate (1) bears a protected building superstructure (4). Due to a significantly lower impedance of seismic waves that propagate vertically through the horizontal stratum of the elevated building foundation encompassing the abutments (2), in comparison with the stratum of footings in the ground (3) or the stratum of plate (1), any transmission of seismic wave energy into the superstructure (4) furnished with the elevated building foundation will be decreased considerably. - During an earthquake, both P- and S-waves propagating from the ground vertically into the building superstructure (4) will have to go first through the strata (3), (2) and (1), which constitute the elevated building foundation, having an effect of a seismic barrier that mitigates all three linear components of earthquake shaking. Material, dimensions, and configuration of each elevated building foundation should satisfy a requirement of proper vertical load bearing capacity and that of adequate compression and shearing forces being transmitted through the elevated building foundation into the superstructure. Unlike its predecessors, the elevated building foundation is equally effective for any direction of shaking, and relatively simple for both construction and reconstruction. Besides, it incorporates no moving parts, remains ever ready for performance, and does not require any maintenance during a lifetime of a building structure.
Claims (1)
1. A system of properly assembled structural elements called an “elevated building foundation” adapted for a 3D protection of a building superstructure against a damaging effect of a strong earthquake and comprising the following features:
a massive horizontal plate (1) raised above the level of the ground and underpinned by multiple abutments (2);
individual footings at the level of the ground (3) supporting the abutments (2);
the top surface of the plate (1) bearing a protected building superstructure (4);
as a result of a proper choice of materials, dimensions, and configuration of the elevated building foundation, the value of impedance of seismic waves that propagate vertically through the horizontal stratum of the elevated building foundation encompassing the abutments (2) has to be secured at such a low level in comparison with the corresponding impedances at the stratum of footings on the ground (3) or the stratum of plate (1), that any transmission of seismic wave energy into the superstructure (4) furnished with the elevated building foundation will be decreased considerably.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/904,142 US20060101732A1 (en) | 2004-10-26 | 2004-10-26 | Elevated Building Foundation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/904,142 US20060101732A1 (en) | 2004-10-26 | 2004-10-26 | Elevated Building Foundation |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060101732A1 true US20060101732A1 (en) | 2006-05-18 |
Family
ID=36384657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/904,142 Abandoned US20060101732A1 (en) | 2004-10-26 | 2004-10-26 | Elevated Building Foundation |
Country Status (1)
Country | Link |
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US (1) | US20060101732A1 (en) |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105252A (en) * | 1960-08-24 | 1963-10-01 | Merriman Bros Inc | Slidable and rotatable bearing support |
US4599834A (en) * | 1983-10-27 | 1986-07-15 | Kabushiki Kaisha Toshiba | Seismic isolator |
US4651481A (en) * | 1984-05-22 | 1987-03-24 | The Budapesti Muszaki Egyetem | Progressive shock absorption system for reducing the seismic load of buildings |
US4917211A (en) * | 1987-12-26 | 1990-04-17 | Nkk Corporation | Seismic isolator |
US5442883A (en) * | 1991-05-29 | 1995-08-22 | Kajima Corporation | Vibration control device for structure |
US5740216A (en) * | 1994-12-12 | 1998-04-14 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Vertical seismic isolation structure of common deck system for nuclear reactor components |
US5775038A (en) * | 1996-12-20 | 1998-07-07 | J. Muller International | Fixed point seismic buffer system |
US5816559A (en) * | 1996-03-13 | 1998-10-06 | Kabushiki Kaisha Toshiba | Seismic isolation device |
US5867951A (en) * | 1996-06-14 | 1999-02-09 | Mitsubishi Steel Mfg. Co., Ltd. | Seismic isolation sliding bearing for structure |
US5881507A (en) * | 1996-07-19 | 1999-03-16 | Korea Atomic Energy Research Institute | Integrated horizontal and vertical seismic isolation bearing |
US6115972A (en) * | 1996-04-09 | 2000-09-12 | Tamez; Federico Garza | Structure stabilization system |
US6119413A (en) * | 1999-02-05 | 2000-09-19 | Shaw; Lee A. | Concrete deck and beam seismic retrofit system |
US6324795B1 (en) * | 1999-11-24 | 2001-12-04 | Ever-Level Foundation Systems, Inc. | Seismic isolation system between floor and foundation comprising a ball and socket joint and elastic or elastomeric element |
US6438905B2 (en) * | 2000-03-29 | 2002-08-27 | The Research Foundation Of Suny At Buffalo | Highly effective seismic energy dissipation apparatus |
US6499170B2 (en) * | 2000-04-12 | 2002-12-31 | Jae Kwan Kim | Seismic load transmitting system based on impact mechanism for multi-span continuous bridges |
US6725612B2 (en) * | 2001-05-04 | 2004-04-27 | Jae Kwan Kim | Directional rolling pendulum seismic isolation systems and roller assembly therefor |
-
2004
- 2004-10-26 US US10/904,142 patent/US20060101732A1/en not_active Abandoned
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105252A (en) * | 1960-08-24 | 1963-10-01 | Merriman Bros Inc | Slidable and rotatable bearing support |
US4599834A (en) * | 1983-10-27 | 1986-07-15 | Kabushiki Kaisha Toshiba | Seismic isolator |
US4651481A (en) * | 1984-05-22 | 1987-03-24 | The Budapesti Muszaki Egyetem | Progressive shock absorption system for reducing the seismic load of buildings |
US4917211A (en) * | 1987-12-26 | 1990-04-17 | Nkk Corporation | Seismic isolator |
US5442883A (en) * | 1991-05-29 | 1995-08-22 | Kajima Corporation | Vibration control device for structure |
US5740216A (en) * | 1994-12-12 | 1998-04-14 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Vertical seismic isolation structure of common deck system for nuclear reactor components |
US5816559A (en) * | 1996-03-13 | 1998-10-06 | Kabushiki Kaisha Toshiba | Seismic isolation device |
US6115972A (en) * | 1996-04-09 | 2000-09-12 | Tamez; Federico Garza | Structure stabilization system |
US5867951A (en) * | 1996-06-14 | 1999-02-09 | Mitsubishi Steel Mfg. Co., Ltd. | Seismic isolation sliding bearing for structure |
US5881507A (en) * | 1996-07-19 | 1999-03-16 | Korea Atomic Energy Research Institute | Integrated horizontal and vertical seismic isolation bearing |
US5775038A (en) * | 1996-12-20 | 1998-07-07 | J. Muller International | Fixed point seismic buffer system |
US6119413A (en) * | 1999-02-05 | 2000-09-19 | Shaw; Lee A. | Concrete deck and beam seismic retrofit system |
US6324795B1 (en) * | 1999-11-24 | 2001-12-04 | Ever-Level Foundation Systems, Inc. | Seismic isolation system between floor and foundation comprising a ball and socket joint and elastic or elastomeric element |
US6438905B2 (en) * | 2000-03-29 | 2002-08-27 | The Research Foundation Of Suny At Buffalo | Highly effective seismic energy dissipation apparatus |
US6499170B2 (en) * | 2000-04-12 | 2002-12-31 | Jae Kwan Kim | Seismic load transmitting system based on impact mechanism for multi-span continuous bridges |
US6725612B2 (en) * | 2001-05-04 | 2004-04-27 | Jae Kwan Kim | Directional rolling pendulum seismic isolation systems and roller assembly therefor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |