This document provides definitions and an overview of earthquake engineering. It defines earthquake engineering as the branch of engineering devoted to mitigating earthquake hazards. It discusses definitions of key terms like earthquakes, faults, and earthquake hazards. Specifically, it describes how earthquakes are caused by the sudden movement of tectonic plates or faults within the earth's crust. It also summarizes some of the main hazards caused by earthquakes like building and bridge collapses, landslides, fires, and tsunamis. Finally, it outlines the layout of the course which will cover topics like seismicity, earthquake analysis methods, earthquake-resistant design of structures, and practical considerations.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #3: Direct Shear Test)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
In this presentation, following topics are covered:
1- Introduction to soil liquifaction.
2- Causes and effects of soil liquifaction
3- Methods to remove soil liquifaction.
4- Mechanism of soil liquifaction.
5- Conclusion.
This presentation contains the brief introduction to earthquake,its effect,causes etc..
And case study of kuchha(bhuj),Gujarat Earthquake on 26th january,2001
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #3: Direct Shear Test)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
In this presentation, following topics are covered:
1- Introduction to soil liquifaction.
2- Causes and effects of soil liquifaction
3- Methods to remove soil liquifaction.
4- Mechanism of soil liquifaction.
5- Conclusion.
This presentation contains the brief introduction to earthquake,its effect,causes etc..
And case study of kuchha(bhuj),Gujarat Earthquake on 26th january,2001
Earthquake is a violent tremor in the earth’s crust, sending out a series of shock waves in all directions from its place of origin or epicenter.
On the morning of January 26, 2001, the Nation’s 52nd Republic Day, a devastating earthquake occurred in the Kutch district of the state of Gujarat.
EFFECT OF POUNDING ON GLOBAL RESPONSES OF BUILDINGS CONSTRUCTED IN A ROWIAEME Publication
Pounding is very complex phenomenon and it has been observed very often in metropolitan cities, during an earthquake, where series of buildings in a row without any seismic gaps are in abundance. Due to pounding during strong ground motion, the acceleration at pounding level considerably increases and generates extra pounding force which causes major structural damages or sometime results into building collapse.
This paper deals with the study of effects on global response of structures due to pounding during an earthquake. Time history analysis has been done to evaluate the pounding effects for different models of building when subjected to various ground motions into two different cases. The study have shown the effect of pounding on global response of adjacent structures in terms of acceleration, and impact forces which get amplified in many times.
Journal of Structural Engineering and Management vol 3 issue 3STM Journals
Journal of Structural Engineering and Management (JoSEM) This a global Journal publishing all aspects of structural Engineering and Management. The goal of this Journal is to provide a platform for scientists, academicians and Engineers to discuss the new developments in the area of Structural engineering.
Focus and Scope Covers
Vibration Impact, Structural Dynamics
Experimental Mechanics
Structural Engineering and Structural Mechanics
Analytical and design Methods
Bridge , Dam construction and analysis
Repairs, Strengthening, Maintenance
Innovative Structures
Testing Technologies
Introduction of earthquake
focus and epicenter of an earthquake.
Relate earthquake activity to plate tectonics
Describe the types of waves emitted during an earthquake.
Distinguish between earthquake intensity and magnitude.
Review some current methods of earthquake prediction.
Preparation and steps during and after earthquake.
Introduction of earthquake
focus and epicenter of an earthquake.
Relate earthquake activity to plate tectonics
Describe the types of waves emitted during an earthquake.
Distinguish between earthquake intensity and magnitude.
Review some current methods of earthquake prediction.
Preparation and steps during and after earthquake.
This report contains the brief introduction to earthquake,its effect,causes etc..
And case study of kuchha(bhuj),Gujarat Earthquake on 26th january,2001
Earthquake: A Tragedy to life and propertyVanshika Singh
Earthquakes are the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to propel objects and people into the air, and wreak destruction across entire cities.
Earthquakes are the shaking, rolling or sudden shock of the earth’s surface. They are the Earth's natural means of releasing stress. Earthquakes can be felt over large areas.
Earthquakes cannot be predicted, although scientists are working on it.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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2. 1.1.1. DEFINITIONS
■ Earthquake Engineering
• can be defined as the branch of engineering devoted to mitigating
earthquake hazards. In this broad sense, earthquake engineering
covers the i
h investigation and solution of the problems created b
i i d l i f h bl d by
damaging earthquakes, and consequently the work involved in the
practical application of these solutions, i.e. in planning, designing,
constructing and managing earthquake resistant structures and
earthquake‐resistant
facilities.
■ Scope
• Seismicity ,Nature, Measures and Recording of earthquakes.
• Planning for Seismic Risk Assessment & Mitigation
• Analysis, Design and Construction of Earthquake Resistant Structures
• Evaluation of Buildings for Earthquake Resistance
• Retrofitting f Earthquake d
R t fitti of E th k damaged St t
d Structures
• Earthquake Management and Security
3. 1.1.1. DEFINITIONS
■ An Earthquake
• is the motion or vibration, sometimes violent, of the earth’s surface that follows
a release of energy in the earth’s crust. This energy can be generated by a
sudden dislocation of segments of the crust, by a volcanic eruption, or even by
sudden dislocation of segments of the crust by a volcanic eruption or even by
manmade explosions.
■ Sources of Ground Movements
• Tectonic Earthquakes
• Volcanoes
l
• Explosions
• Collapse of Mines & Large Reservoirs
• Tsunami
12. 1.1.2. EARTHQUAKE HAZARDS
■ Specific Failures
•
Collapse of the first storey and damage
due to pounding between adjacent
Collapse of a high-rise building because of buildings during the Kocaeli
failure of the columns at the first storey earthquake, Turkey, August 17, 1999,
during the Chi-Chi
d i th Chi Chi earthquake, T i
th k Taiwan, Magnitude 7 4
7.4
September 20, 1999, Magnitude 7.6
13. 1.1.2. EARTHQUAKE HAZARDS
May 2008 China Earthquake
y q
Date : May 12, 2008, 14:28
Magnitude : 8 0 Richter Scale Earthquake
8.0
Location : Sichuan, China
Death : 69,016
Missing :18,627
Injured : 373,573
Displaced :15,006,341
:15 006 341
School Destroyed : 6,898
Rescue workers : 130,000
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
14. 1.1.2. EARTHQUAKE HAZARDS
4.5M homes destroyed
4 5M h d d
Some counties completely
wiped off the map
More than 11M people Displaced
At this moment
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
15. 1.1.2. EARTHQUAKE HAZARDS
Thousands of tents are needed
Food and water are needed
Medical supplies are needed
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
16. 1.1.3. COURSE LAYOUT
1 ■ Introduction
2 ■ Seismicity : Nature, Measures and Characteristics of
Earthquakes
3■ Methods of Earthquake Analysis of Structures
y
Time History
Response Spectrum
Equivalent Static Loads
According to the Egyptian Code – UBC - IBC
4■ Earthquake Design of Structures
5■ P ti l and A hit t l C
Practical d Architectural Considerations
id ti
17. EARTHQUAKE
ENGINEERING
1.2. N
Nature of
f
Earthquakes
1.2.1. Causes of Earthquakes
1.2.2. Faults
1.2.3. Earthquake Effects
18. 1.2.1. Causes of Earthquakes
Tectonic Earthquakes
are caused by the sudden dislocation of large rock masses along
geological faults within the earth's crust. The Earth is formed of
several l
l layers that h
h have very diffdifferent physical and chemical
h i l d h i l
properties. The outer layer, which averages about 70 kilometers
in thickness, consists of about a dozen large, irregularly shaped
plates that slide over under and past each other on top of the
over,
partly molten inner layer .Most earthquakes occur at the
boundaries where the plates meet .
Plate Tectonic Interactions
Flash movie
Dr. Osman Shalan Dr. Tharwat Sakr
19. 1.2.1. Causes of Earthquakes
Volcanic Earthquakes
Earthquakes that can be
reasonably associated with
volcanoes are relatively rare
and fall into three categories:
(i) volcanic explosions,
(ii) shallow earthquakes from
magma movements, and
(iii) sympathetic tectonic
earthquakes
Dr. Osman Shalan Dr. Tharwat Sakr
20. 1.2.1. Causes of Earthquakes
Explosions
Earthquakes may be produced
q y p
by the underground
detonation of chemical or
nuclear devices When a
devices.
nuclear device is detonated in
a borehole underground,
enormous nuclear energy is
released .
Dr. Osman Shalan Dr. Tharwat Sakr
21. 1.2.1. Causes of Earthquakes
Collapse Earthquakes
Collapse earthquakes are small earthquakes occur in
regions of underground caverns and mines. The immediate
cause of ground shaking is the sudden collapse of the roof
g g p
of the mine or cavern.
Dr. Osman Shalan Dr. Tharwat Sakr
22. 1.2.1. Causes of Earthquakes
Large Reservoir-induced Earthquakes
Reservoir-
The idea that earthquakes might be triggered by impounding
q g gg y p g
surface water is not new. The first detailed evidence of such an
effect came with the filling of Lake Mead behind Hoover Dam
(height 221 m. After impounding began , reports of local shaking
became prevalent.
b l t
Dr. Osman Shalan Dr. Tharwat Sakr
23. 1.2.1. Causes of Earthquakes
Tsunami
Underwater earthquakes,
volcanoes, or landslides
can produce a tsunami or
tidal wave. This wave can
travel very rapidly
thousands of miles across
the ocean. In deep water
the tsunami may only raise
the ocean level by a few
centimeters,
centimeters hardly enough
to notice. But as it
approaches land, the
shallower water causes the
wave to build in height to
as much as 10-20 meters
or more and suddenly
flood coastal areas
Dr. Osman Shalan Dr. Tharwat Sakr
24. 1.2.2. Faults
Definition
A fault is a fracture within some
particular rocky mass within the
earth's crust. Th d h and
h' The depth d
length of faults vary greatly.
Faults may range in length from
few meters to many kilometers
and are drawn on a geological
map as continuous or broken
lines. Earthquakes are caused by
q y
active faults, that is, faults along
faults
which the two sides of the
fracture move with respect to
each other. S an earthquake i
h th So, th k is
caused by the sudden movement
of the two sides of a fault with
respect to another .
Dr. Osman Shalan Dr. Tharwat Sakr
27. 1.2.2. Faults
Types of Faults
a) Normal faults
These occur in response to pulling
or tension: the overlying bl k
i h l i block
moves down the dip of the fault
plane. movie
b) Thrust (reverse) faults
These occur in response to
squeezing or compression: the
overlying block moves up the dip
y g p p
of the fault plane. movie
c) Strike‐slip (lateral) faults
Strike‐
These occur in response to either
type of stress: th bl k move
t f t the blocks
horizontally past one another .
movie
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
28. 1.2.2. Faults
Earthquake Generation (Theory of Elastic Rebound
Rebound)
Elastic Rebound Model of Earthquake
Elastic Rebound Model of Earthquake
movie
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
29. 1.2.2. Faults
Earthquake Focus
The point on the fault where
rupture initiates is referred to
as the f
h focus or h hypocentert
of an earthquake.
The hypocenter of an
earthquake is described by
q y
its depth in kilometers, its
map location in latitude and The term epicenter is the
longitude, its date and time point on the earth’s surface
earth s
of occurrence, and i
f d its directly above the
magnitude hypocenter
Prof. Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sak
30. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
1‐ By inertial forces
generated b severe
d by
ground shaking
Overturning collapse of a high-rise building
Chi Chi
Chi-Chi earthquake, Taiwan, September 20,
1999, Magnitude 7.6
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
31. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
2. By earthquake‐
induced fires:
i d d fi
Damage caused by the earthquake induced fires
Hanshin (Kobe) earthquake, January 17, 1995, Japan,
Magnitude 6.9
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
32. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
3. By changing the physical properties of the foundation soils such as
Liquefaction:
Overturning due to liquefaction
g q
Damage due to liquefaction
Kocaeli earthquake, Turkey, 1999, Magnitude 7.4
1964 Niigata, Japan, earthquake.
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
33. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
4. By direct fault displacement at the site of a structure:
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
34. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
5. By landslides, or other movement:
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
35. 1.2.3. Earthquake Effects
How do Earthquakes affect Structures?
q
6. By seismic sea waves (tsunamis) or fluid motions in
reservoirs and lakes (seiches):
Prof.Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr
36. 1.2. Nature of Earthquakes
Questions (refer to Project Group Pageِ Assignment (1))
Pageِ (1
Prof. Dr. Osman Shaalan Earthquake Engineering Dr. Tharwat Sakr