+ All Categories
Home > Documents > Armenian National Survey for Seismic Protection

Armenian National Survey for Seismic Protection

Date post: 12-Jan-2016
Category:
Upload: sol
View: 61 times
Download: 0 times
Share this document with a friend
Description:
Armenian National Survey for Seismic Protection. Earthquake Engineering Center. www.nssp-gov.am e-mail [email protected] [email protected]. Tasks of Earthquake Engineering Center. - PowerPoint PPT Presentation
Popular Tags:
60
Armenian National Survey Armenian National Survey for Seismic Protection for Seismic Protection Earthquake Engineering Earthquake Engineering Center Center www.nssp-gov.am e- mail [email protected]
Transcript
Page 1: Armenian National Survey for Seismic Protection

Armenian National Survey for Armenian National Survey for Seismic ProtectionSeismic Protection

Earthquake Engineering CenterEarthquake Engineering Center

www.nssp-gov.am e-mail [email protected] [email protected]

Page 2: Armenian National Survey for Seismic Protection

Tasks ofEarthquake Engineering Center

1. Realization the Initiative and Strategy of Armenian NSSP in building and structure seismic protection (in the frame of State Complex Programs on Seismic risk reduction in the territory of Armenia and city of Yerevan).

2. Seismic risk evaluation and mapping for towns and settlements in Armenia.

3. Rapid damage estimation of structures and buildings in epicentral zone in case of major earthquake.

Page 3: Armenian National Survey for Seismic Protection

4. Vulnerability assessment for critical facilities (NPP, chemical plants, dams and reservoirs, and lifelines.

5. Elaboration, testing and implementation of techniques and procedures for reinforcement and retrofitting of existing buildings and structures.

6. Development of experimental models and research aiming at strengthening of buildings and structures.

7. Seismic monitoring of buildings and structures through installation and operation strong motion instruments.

8. Research on ground strong motion.

9. Development and implementation of Early Warning System.

Page 4: Armenian National Survey for Seismic Protection

Structure of Earthquake Engineering Center

1. Building and Structure Seismic Risk Evaluation Division

2. Critical Facilities Seismic Vulnerability Assessment Division

3. Experimental Research Division

4. Seismically Protective Constructive Systems and New Constructive Solution Division

5. Ground Strong Motion and Building Monitoring Division

Page 5: Armenian National Survey for Seismic Protection

Tasks of Building and Structure Seismic Risk Evaluation Division

– Data base creation for urban planning of towns and settlements using GIS technology

– Urban planning detailed mapping

– Estimation of facilities’ design seismic resistance

– Seismic risk evaluation for towns and settlements

– Seismic risk mapping for towns and settlements

– Rapid damage estimation for towns and settlements in epicentral zone in case of major earthquake.

Page 6: Armenian National Survey for Seismic Protection

0.3

ø³ ç³ ñ³ Ý Kajaran

Î ³ å ³ Ý Kapan

Ø»ÕñÇ Meghri

¶áñÇë Goris

êÇëdz Ý Sisian

0.4

0.2

0.2

0.2 0.3

ì ³ Ûù Vayk

æ»ñÙáõÏ Jermouk

0.3

0.4

0.5

º Õ»· ݳ Óáñ Yeghegnadzor

ì ³ ñ¹ »ÝÇë Vardenis

س ñï áõÝÇ Martuni

¶³ í ³ é Gavar

² ñ³ ñ³ ï Ararat

0.3

ì »¹ Ç Vedi

² ñï ³ ß³ ï Artashat

² ñÙ³ í Çñ Armavir

³ ÉÇÝ Talin

ì ³ Õ³ ñß³ å ³ ï Vagharshapat

0.3

² µáí Û³ Ý Abovian

º Õí ³ ñ¹ Yeghvard

² ßï ³ ñ³ Ï Ashtarak

º ðº ì ² Ü YEREVAN

0.2

0.3

0.4

0.2 س ñ³ ÉÇÏ

Maralik

² ñÃÇÏ Artik

² å ³ ñ³ Ý Aparan

Ðñ³ ½¹ ³ Ý Hrazdan

ê»í ³ Ý Sevan

0.5

0.4

¶ÚàôØðÆ GYUMRI

êå Çï ³ Ï Spitak

ì ² ܲ Òàð VANADZOR

² Ù³ ëdz Amasia

² ßáóù Ashotsk

î ³ ßÇñ Tashir

êï »÷ ³ ݳ í ³ Ý Stepanavan

² ɳ í »ñ¹ Ç Alaverdi

¸ ÇÉÇç³ Ý Dilijan

Ö³ Ùµ³ ñ³ Ï Chambarak

Æç»í ³ Ý Ijevan

´ »ñ¹ Berd

0.3

0.3

ÜáÛ»Ùµ»ñÛ³ Ý Noyemberian

0.2 0.3

0.3

0.5

SEISMIC ZONATION MAP

OF THE REPUBLIC OF ARMENIA

1 : 500000 SCALE

NSSP RA

º ðº ì ² Ü 1998

a = 0.5 g a = 0.4 g a = 0.3 g a = 0.2 g

LAKE SEVAN

A R M E N I A N N S S PÐÐ ê ä ² Ì

C O V E R N M E N T O F T H E R A

ÐÐ Î ² è ² ì ² ð à ô Â Ú à ô Ü

Y E R E V A N 1 99 8 º ð º ì ² Ü

Page 7: Armenian National Survey for Seismic Protection

Geological map in Armenia

Page 8: Armenian National Survey for Seismic Protection

Distribution pattern for the seismic risk in Armenia

Page 9: Armenian National Survey for Seismic Protection

Seismic Risk in Yerevan City

Page 10: Armenian National Survey for Seismic Protection

Seismic Microzonation Map of Yerevan City

0.32g

0.40g

0.38g

Page 11: Armenian National Survey for Seismic Protection

SEISMIC RISK DISTRIBUTION

FOR YEREVAN CITY

HighModerateLow

Page 12: Armenian National Survey for Seismic Protection

1. Low-rise stone buildings (private)2. Mixed stone-complex construction

buildings3. Large panel buildings4. Frame panel buildings5. Buildings constructed with story

grown-up method6. Braced buildings

Map of the risk collapse for different construction type buildings in Yerevan city (design types 1,2,…, are indicated in percentage of total number of buildings in each square 1,2,…)

high risk (K>1.1)

moderate risk (1.05<K<1.1)

no risk practically (K<1.06)

Page 13: Armenian National Survey for Seismic Protection

Capital buildings 0.1g Capital buildings 0.2g Private buildings

Page 14: Armenian National Survey for Seismic Protection

Tasks of Critical Facilities Seismic Vulnerability Assessment Division

• Data base creation for most earthquake vulnerable buildings in towns and settlements

• Vulnerability assessment for critical facilities (NPP, chemical plants, dams and reservoirs, and lifelines)

• Engineering research in construction aiming at compliance of new methodology and seismic building codes

Page 15: Armenian National Survey for Seismic Protection

• In situ estimation of expected ground maximum acceleration

• In situ estimation of ground and structure prevailing periods

• In situ creation of design accelerograms

• Definition of technical condition and actual seismic resistance for facilities, development of methods for vulnerability reduction

• Rapid damage estimation for towns and settlements in epicentral zone in case of major earthquake

• Building and structure behavior study in case of major earthquake

• Analysis of earthquake consequences

Page 16: Armenian National Survey for Seismic Protection

Borders of adjacent areas to Azat reservoirin case of possible flooding

Page 17: Armenian National Survey for Seismic Protection

         THE ESTIMATION OFBUILDING ’S VULNERABILITY

1. stone buildings (less than 5 story )

2. large-panel buildings (9 story )

3. frame-panel buildings (9 story )

4. frame and frame-braced (12-16 story )

5. constructed by floor-grade method (12-16 story)

6. new structural design (less than 9 story )

By the constructive decisions residential buildings in Armenia are divided into six categories

Page 18: Armenian National Survey for Seismic Protection

STONE BUILDINGS(less than 5 story )

30% of dwelling fund

High vulnerability

Strengthening required

Page 19: Armenian National Survey for Seismic Protection
Page 20: Armenian National Survey for Seismic Protection
Page 21: Armenian National Survey for Seismic Protection
Page 22: Armenian National Survey for Seismic Protection

Natural vibration of Stone (Mansory)

five-storied building Fourier spectra

Page 23: Armenian National Survey for Seismic Protection

The prevailing period in the transverse direction of the building is 0.38 sec. Obtained value is 1.36 times more than normative prevailing period. According to the Codes of Armenia such increase of the normative prevailing period corresponds to the third degree of damage, which requires Rehabilitation and reinforcement of the building.

Page 24: Armenian National Survey for Seismic Protection

LARGE-PANEL BUILDINGS(9 story)

10% of dwelling fund

Low vulnerability

Page 25: Armenian National Survey for Seismic Protection
Page 26: Armenian National Survey for Seismic Protection
Page 27: Armenian National Survey for Seismic Protection

FRAME-PANEL BUILDINGS(9 story)

15% of dwelling fund

High vulnerability, 95 from 138 of 9-storey frame panel buildings of 111 series were totally collapsed in Gyumri

After Spitak Earthquake buildings will not erected more

Strengthening required

Page 28: Armenian National Survey for Seismic Protection
Page 29: Armenian National Survey for Seismic Protection
Page 30: Armenian National Survey for Seismic Protection

FRAME AND FRAME-BRACED

(12-16 story)

15% of dwelling fund

Not existed in disaster zone

Low vulnerability

Page 31: Armenian National Survey for Seismic Protection
Page 32: Armenian National Survey for Seismic Protection
Page 33: Armenian National Survey for Seismic Protection

CONSTRUCTEDBY FLOOR-GRADE METHOD

(12-16 story)

Mostly in Yerevan-city 7% of dwelling fund

2 buildings collapsed in Gyumri

After Spitak Earthquake buildings will not erected more.

Page 34: Armenian National Survey for Seismic Protection
Page 35: Armenian National Survey for Seismic Protection
Page 36: Armenian National Survey for Seismic Protection

Tasks of Seismically Protective Constructive Systems and New Constructive Solution Division

• Analysis of constructive solutions for existing buildings and development of new conceptual solutions for seismic resistance

• Analysis of constructive solutions for retrofitted buildings in disaster zone and development of new solutions

Page 37: Armenian National Survey for Seismic Protection

• Estimation of seismic loads for buildings and structures using accelerograms of real earthquakes

• Development and implementation of new technologies for strengthening of buildings and structures

• Development and implementation of damper equipment for building and structure seismic resistance increase

• Theoretical and practical research on shim-rubber isolation

• Monitoring of buildings using seismic protective systems

Page 38: Armenian National Survey for Seismic Protection

Model of 9-story frame building with “upper

flexible floor”

Page 39: Armenian National Survey for Seismic Protection

General view of a building with

“upper flexible floor”

Page 40: Armenian National Survey for Seismic Protection

Upper flexible floor on LRB

Page 41: Armenian National Survey for Seismic Protection
Page 42: Armenian National Survey for Seismic Protection

Using the seismic insulators for the buildings and constructions

Page 43: Armenian National Survey for Seismic Protection

Armenian International Airport.Armenian International Airport.Moment of Experiment of Lead Rubber Bearing Moment of Experiment of Lead Rubber Bearing (Kuala-Lumpur, Robinson Seismic Ltd)(Kuala-Lumpur, Robinson Seismic Ltd)

Page 44: Armenian National Survey for Seismic Protection
Page 45: Armenian National Survey for Seismic Protection

Building before restoration

Page 46: Armenian National Survey for Seismic Protection

Constructive solutions

Page 47: Armenian National Survey for Seismic Protection

Building after restoration

Page 48: Armenian National Survey for Seismic Protection

Tasks of ExperimentalResearch Division

– Development and implementation of new building strengthening technologies

– Development of experimental models and research aiming at strengthening of buildings and structures

– Experimental research on shim-rubber isolation

– Experimental selection of appropriate damper equipment for building and structure seismic resistance increase

– Testing of building materials and constructions

Page 49: Armenian National Survey for Seismic Protection
Page 50: Armenian National Survey for Seismic Protection
Page 51: Armenian National Survey for Seismic Protection

Testing of seismic insulators (vertical and horizontal deformation)

Page 52: Armenian National Survey for Seismic Protection

Model of Building with new Dynamic Damping

Page 53: Armenian National Survey for Seismic Protection

Dynamic Model of 12-storey Building (Scale 1:15) with

Dynamic Damping

Page 54: Armenian National Survey for Seismic Protection

View of Dynamic View of Dynamic Damping ModelDamping Model

Page 55: Armenian National Survey for Seismic Protection

Tasks of Ground Strong Motion and Building Monitoring Division

• Seismic Hazard Assessment of the Territory of Armenia

• Seismic Microzoning

• Earthquake Early Warning System Development

• Seismic Monitoring of Buildings and Structures

Page 56: Armenian National Survey for Seismic Protection

Armenian Strong Motion NetworkInstrument Locations

Existing free-field Swiss – SMACH (10)

American - SMA (16)Japanese - SMAC (2) USSR СРРЗ (6)

SAFER Cities American - SM 1 (40)

Page 57: Armenian National Survey for Seismic Protection

Earthquake parameters and peak ground accelerationsof all acceleration time histories recorded by Spitakarea strong motion stations

N Event Data Epicenter Depth,km

Mag Station km Peakacceleration,

cm/sec2

1 2 3 4 5 6 7 8 NS EW V1 Spitak area quake 26.06.90 40.88N 44.26E 10 2.2Ml Spitak-Karadzor 6 18 15 18

- - - Stepanavan 17 6 7 32 Spitak area quake 14.07.90 40.90N 44.20E 10 2.8Ml Spitak-Karadzor 12 12 13 83 Spitak area quake 15.12.90 40.86N 44.29E 10 3.3Ml Spitak-Karadzor 3 46 37 274 Spitak area quake 16.12.90 41.32N 43.81E 4 5.2Ml Akhalkalaki 28 33 15 12

Bogdanovka 19 38 41 58Bakuriani 53 41 42 12Bavra 22 81 117 67Vanadzor 82 7 8 4Gumri 58 7 9 10Spitak-Karadzor 68 14 12 11Stepanavan 61 23 18 9Toros 44 48 65 23

5 Spitak area quake 20.12.90 41.25N 43.85E 4 3.5Ml Bavra 15 6 6 46 Tbilisi area quake 23.12.90 40.90N 44.44E 10 4.1Ml Stepanavan 12 12 9 67 Spitak area quake 11.01.91 40.90N 44.33E 10 3.5Ml Spitak-Karadzor 6 111 141 1578 Spitak area quake 13.04.91 41.20N 43.75E 1 4.4mb Bavra 10 7 5 79 Dzhava-Racha quake 29.04.91 42.39N 43.67E 6 7.1Ms Akhalkalaki 110 11 7 6

Bogdanovka 125 8 8 6Bavra 142 9 11 6Toros 163 10 12 6Stepanavan 166 15 14 6Gumri 178 13 8 6

Page 58: Armenian National Survey for Seismic Protection
Page 59: Armenian National Survey for Seismic Protection

Earthquake Early Warning System around Yerevan City

The zones of the influence with intensity of 7 on Yerevan

Page 60: Armenian National Survey for Seismic Protection

Seismic Monitoring of Buildings (Fragment)


Recommended