WO2017141083A1 - Multi-tapered yielding plate energy dissipater - Google Patents

Multi-tapered yielding plate energy dissipater Download PDF

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Publication number
WO2017141083A1
WO2017141083A1 PCT/IB2016/052352 IB2016052352W WO2017141083A1 WO 2017141083 A1 WO2017141083 A1 WO 2017141083A1 IB 2016052352 W IB2016052352 W IB 2016052352W WO 2017141083 A1 WO2017141083 A1 WO 2017141083A1
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WO
WIPO (PCT)
Prior art keywords
building
plates
device
mtyped
seismic
Prior art date
Application number
PCT/IB2016/052352
Other languages
French (fr)
Inventor
Seyed Sasan ALAVI SHIRKHORSHIDI
Mahmood HOSSEINI
Original Assignee
Alavi Shirkhorshidi Seyed Sasan
Hosseini Mahmood
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
Priority to IR139450140003013249 priority Critical
Priority to IR1393013249 priority
Application filed by Alavi Shirkhorshidi Seyed Sasan, Hosseini Mahmood filed Critical Alavi Shirkhorshidi Seyed Sasan
Publication of WO2017141083A1 publication Critical patent/WO2017141083A1/en

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/10Culture of aquatic animals of fish
    • A01K61/17Hatching, e.g. incubators
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042Introducing gases into the water, e.g. aerators, air pumps
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/06Arrangements for heating or lighting in, or attached to, receptacles for live fish
    • A01K63/065Heating or cooling devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K35/00Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/56Materials from animals other than mammals
    • A61K35/63Arthropods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/10Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/10Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/15Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/04Domestic or like local pipe systems
    • E03B7/045Domestic or like local pipe systems diverting initially cold water in warm water supply
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00Electrical machine types; Structures or applications thereof
    • B60L2220/40Electrical machine applications
    • B60L2220/44Wheel Hub motors, i.e. integrated in the wheel hub
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • Y02T10/6213Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor
    • Y02T10/6217Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor of the series type or range extenders
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y02T10/7077Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors on board the vehicle

Abstract

Most of current seismic design codes accept heavy damages to the building in case of large earthquakes, provided that the building is prevented against collapse. However, this acceptance leads to some unacceptable consequences in populated cities, like very great number of people who lose their residence or work place for very long time. To overcome these difficulties one approach is design of 'repairable structures' for buildings, by using the idea of 'Directed Damage Design' (DDD), which means guiding the damage to some pre-decided parts or elements of the structural system, so that other parts do not experience any plastic deformation. This invention is based on the DDD idea, making it possible to have repairable steel buildings based on creation of building's rocking motion possibility rather than its shear deformation, by using a central hinge support and circumferential energy dissipating columns at base level. Energy dissipation is done by a Multiple Tapered Yielding Plate Energy Dissipating (MTYPED) device, installed at the bottom of the column, which creates a type of hysteretic behavior in axial deformation of columns. By performing a set of laboratory tests on MTYPED devices their hysteretic behavior were assessed from which their initial stiffness as well as their yielding strength were obtained, and then they were modeled in a real size building by using nonlinear springs, and a series of nonlinear time history analysis were performed on both rocking building and the conventional building with the same geometry. Results show that the proposed rocking system equipped with MTYPED devices not only gives the building a longer natural period, leading to lower seismic demand, but also leads to remarkable energy dissipation capacity in the building structure at base level, and therefore, keeping the seismic drifts in elastic range in all stories of the building above the ground floor, so that the building structure does not need any major repair work after a large earthquake. This is while the conventional building suffers from heavy damage and needs to be demolished after an earthquake.

Description

Invention Description

1- Invention Title

Multi-Tapered Yielding Plate Energy Dissipater (MTYPED)

2- The Usage Field

Earthquake Engineering, Structural Engineering

3- The Aim of the Invention

The Seismic Design Codes mostly accept some level of damage to structures, including buildings systems, subjected to severe earthquakes, so that after the event the building is not repairable and has to be demolished and replaced by a new one. To make the buildings and other similar structures repairable, even after a major earthquake, it is necessary to have some replaceable energy dissipaters to be used in a structure with rocking or seesaw motion under the columns of the lowest story.

4- Background of Energy Dissipating Devices in Structures

Energy dissipaters have been introduced since mid 70s in Earthquake Engineering field, and several types (including ADAS and TADAS) have been proposed by researchers so far. However, these devices are located mostly between the bracing elements and beams, so that energy dissipation can take place by them only if remarkable deformation occurs in the body of the structural systems (Figure 1 ).

Figure imgf000002_0001

Figure 1 - The ADAS device in a simple frame

This means structural damage, which can be so high, in case of severe earthquake, which make it necessary to demolish the whole structure for its replacement. This is while in the invented device introduced here the main elements of the structural system remain elastic and large deformations only occur in the MTYPED devices installed at the bottom of columns at the lowest story, as depicted in the next section.

5- Advantages of the Invented Device

The invented device in its simplest form is consisted of an outer box, and inner box and some tapered plates as shown in Figure 2.

Figure 2- Simplest form of the MTYPED device

As it is seen in Figure 2, the MTYPED device has three main components, and can be easily manufactured and used in structural systems. In case of building structures the outer boxes are connected to the foundation, and the columns' base plates are installed at the top of the inner boxes. Figure 3 shows the usage of the MTYPED device in a building structure with seesaw motion.

Figure imgf000003_0001

Figure 3- a) Using the MTYPED device, modeled as multi-linear links, in a building structure with seesaw motion, and b) Seesaw motion of a building frame

The tapered yielding plates can be easily replaced by new ones, after a major earthquake, if necessary. For this purpose by using some jacks the inclined structure is placed back to its original upright position and then each MTYPED-equipped column is pushed up a few millimeters, by using jacks, and the distorted tapered plates are removed and new one are placed.

As it can be realized from the structural frame shown in Figure 3-b, thanks to the high deformation and energy absorption of the MTYPED devices the main structural elements remains basically elastic. On this basis, the buildings with seesaw structural system equipped with MTYPED devices will act in Immediate Occupancy performance level, even after major earthquakes. The MTYPED device has been tested under vertical cyclic loading as shown in Figure 4, and has shown a very stable and appropriate hysteretic behavior.

Figure imgf000004_0001

Figure 4- a) Testing the MTYPED device under cyclic loading, and b) The resulted force-displacement hysteretic loops of the device

As it is observed in Figure 4-b, the MTYPED device can tolerate several cycles of loading there is no low-cycle fatigue in the MTYPED device has been tested under vertical cyclic loading as shown in Figure 4, and has shown a very stable and appropriate hysteretic behavior.

Claims

Claim
Hereby we, Seyed Sasan Alavi having ID No. 0067402666 born in 16 July 1983 in Tehran, Iran, and Mahmood Hosseini having ID No. 1262231906 born in 22 December 1960 in Kashan, Iran claim that the Energy Dissipater Device for Seismic Protection of Structures with the following components and specifications is our invention.
Components of the Invented Device:
1 - The Outer Box, having a square, round or polygon plan, depending on the usage, and made of steel plates with a specific thickness depending on the amount of load imposing on it. (This load itself is a function of the size of the structure in which the device will be used as an energy dissipater.)
2- The Core or Inner Box, being almost half-size of the Outer Box, and plan shape consistent with it, made of steel plates with a specific thickness depending on the amount of load imposing on it.
3- Tapered Yielding Plates, having trapezoidal form or similar, made of low-carbon steel, and it thickness depends on the imposed load.
Device Specifications:
• It can be made and assembled by using the common tools in steel workshops.
• There is no need to advanced technology for its installation.
• The yielding plates, as the main energy dissipation sources, can be replaced easily by new ones after a major earthquake, if required.
• The stiffness and the strength of the device can be adjusted independently to make it appropriate for various structural systems, including building systems, depending on the design needs.
• The number of yielding plates can be adjusted to create the possibility of various amounts of energy dissipation, depending on structure size and the seismic design requirements.
• The manufacturing cost of the device is very low comparing to other energy dissipaters used in seismic protection of structures
Manufacturing Technique:
The plates required for making the outer and inner boxes are cut and the required slits are created in them, then the plates of outer box are connected together by welding, and the same is done for the plates of the inner box. In the next stage the inner box is held in the proper position by a hand crane or hand winch, and the tapered plates are placed in the corresponding slits and are fixed firmly.
PCT/IB2016/052352 2016-02-15 2016-04-26 Multi-tapered yielding plate energy dissipater WO2017141083A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IR139450140003013249 2016-02-15
IR1393013249 2016-02-15

Publications (1)

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WO2017141083A1 true WO2017141083A1 (en) 2017-08-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281487A (en) * 1979-08-06 1981-08-04 Koller Karl S Energy absorbing load carrying strut and method of providing such a strut capable of withstanding cyclical loads exceeding its yield strength
JPH02248551A (en) * 1989-03-23 1990-10-04 Nitta Ind Corp Device for exempting building from vibration
DE4305132C1 (en) * 1993-02-19 1994-04-21 Uwe E Dr Dorka Friction damper for securing support structure against dynamic effects - has superimposed friction plates contacting surfaces which are connected to friction damper connections
JP2002221252A (en) * 2001-01-26 2002-08-09 Nkk Corp Vibration-resistant damper
JP2009243519A (en) * 2008-03-28 2009-10-22 Shimizu Corp Seismic isolator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281487A (en) * 1979-08-06 1981-08-04 Koller Karl S Energy absorbing load carrying strut and method of providing such a strut capable of withstanding cyclical loads exceeding its yield strength
JPH02248551A (en) * 1989-03-23 1990-10-04 Nitta Ind Corp Device for exempting building from vibration
DE4305132C1 (en) * 1993-02-19 1994-04-21 Uwe E Dr Dorka Friction damper for securing support structure against dynamic effects - has superimposed friction plates contacting surfaces which are connected to friction damper connections
JP2002221252A (en) * 2001-01-26 2002-08-09 Nkk Corp Vibration-resistant damper
JP2009243519A (en) * 2008-03-28 2009-10-22 Shimizu Corp Seismic isolator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

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