seismic behaviour of mud brick structures · 1/3 population live in mud brick structures...

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Seismic Behaviour of Mud Brick Structures Third Year Research Project Joseph Hardwick & Jonathan Little (3 rd Year MEng Undergraduates) Supervisor: Dr. Adam Crewe (University of Bristol) Industry Mentor: Dr. Paul Jaquin (Ramboll)

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Page 1: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Seismic Behaviour of Mud Brick Structures

Third Year Research Project

Joseph Hardwick & Jonathan Little (3rd Year MEng Undergraduates)

Supervisor: Dr. Adam Crewe (University of Bristol)

Industry Mentor: Dr. Paul Jaquin (Ramboll)

Page 2: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures
Page 3: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Date back to 8000BC

Mud Brick Structures

Page 4: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures
Page 5: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Date back to 8000BC

1/3 World’s population live in earth brick structures

Distribution of earth structures follows seismic zones

Mud Brick Structures

Page 6: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Distribution of Earth Structures

Distribution of Seismic Zones

Page 7: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Distribution of Earth Structures

Distribution of Seismic Zones

Page 8: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Date back to 8000BC

1/3 Population live in mud brick structures

Distribution of earth structures follows seismic zones

Green technology

Mud Brick Structures

Earthquake Fatalities Adobe Buildings Collapsed People Displaced

El Salvador, 2001 1,100 150,000 1,600,000

Peru, 2001 81 25,000 36,000

Bam, 2003 26,000 85% 60,000

Page 9: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Current guidelines:•Current guidelines (e.g. Minke 2000) propose that masonry design guidelines can be adapted for earth buildings (Jaquin2010)•Based on little experimental evidence

Compare mud bricks with traditional clay fired bricks under seismic conditions.

Produce preliminary guidelines from results.

Project Objectives

Page 10: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressMaterial properties

Compression tests

Page 11: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressMaterial properties

Compression tests

GSA finite element analysis

Page 12: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressGSA

Page 13: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressMaterial properties

Compression tests

GSA finite element analysis

Shaking table tests•¼ scale model

Page 14: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

MethodsWall construction

Base

Bricks

Page 15: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Fired Brick Wall

Page 16: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Fired Brick Wall

Page 17: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Fired Brick Wall

Page 18: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

MethodsWall construction

Page 19: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressShrinkage

Page 20: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

MethodsWall construction

Page 21: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressShaking table tests

Page 22: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

ProgressData Analysis

Page 23: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

From Small Steps to Giant LeapsBetter Guidelines

Better advice for field workers for future construction and disaster relief

Lives saved through safer construction

Improved safety – Improved Quality of Life?

Page 24: Seismic Behaviour of Mud Brick Structures · 1/3 Population live in mud brick structures Distribution of earth structures follows seismic zones Green technology Mud Brick Structures

Thank You

Any Questions?