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A Flexible and integrated shelter approach 9th of November 2011

15-11-2011

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1.

Problem statement

2.

Approach

3.

Initial design

4.

Scope of redesign

5.

Redesign and optimisation → Definition of boundary conditions → Design approach ► Emergency shelter system ► Transitional shelter system → Structural analysis → Prototyping

6.

Conclusions

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1. Problem statementv

Source: United Nation Office for the Coordination of Humanitarian Affairs - IRIN

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1. Problem statementv

. Shelter is a Process → from emergency to reconstruction → from aid to development

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2. Approachv

Open Meccano Approach

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2. Approach v

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2. Approach v

Connections

Pag.

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3. Initial design v

Pag.

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3. Initial design v

Pag.

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3. Initial design v

Pag.

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3. Initial desig v

Pag.

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3. Initial design v

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3. Initial design v

Pag.

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3. Initial design v

Pag.

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3. Initial design v

Tolerances & play Slotted holes Complexity of capacity assembly

Versatility & structural vs. Simplicity & intuitive Pag.

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3. Initial design v Flat connection plates

Number of bolt connections Material

L-shaped connection plates

Thickness

Slotted holes

StiffnessThickness Connection plates Material

Plate type 1

Steel 235

3 mm

Profile type 1

Steel 235

3 mm

Plate type 2

Steel 235

5 mm

Profile type 2

Steel 235

5 mm

Plate type 3

Aluminium

Pag.

AlMg 4,5 Mn

5 mm

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4. Scope of the redesign v

.

Redesign and optimisation of the open adaptable and versatile shelter system

.

Integration of local materials : bamboo → ensure the open character of the system low-tech bamboo ↔ high-tech bamboo

⇑ ⇓ bamboo ↔ aluminium

⇑ ⇓ Aluminium (different sections)

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4. Scope of the redesign v 1.

Definition of the boundary conditions based on the analysis of current transitional shelters 째 Transport volume and mass 째 Loads

2.

Review initial approach and design initial shelter system 째 compatible and complementary distinction between emergency and transitional shelter components 째 redesign connection aluminium shelter system

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5. Redesign and optimisationv

Boundary conditions Transitional shelter

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5. Redesign and optimisation v

Boundary conditions Transitional shelter →P1:from emergency to reconstruction D.R. Congo P2: Kenya °Volcano eruption

P3: Jogyakarta

°Election violence

°Earthquake

°Hot and humid climate

°Hot and humid climate

P4: Pakistan

P5: Sri Lanka (1)

P6: Sri Lanka (2)

°Earthquake

°Confilict

°Tsunami

°Winter weather

°Hot and (tropical)

→°Hotfrom and humidaid climateto development

humid

climate

°Hot and (tropical)

humid

climate

°Temperate climate zone P7: Honduras

P8: Peru (1)

P9: Peru (2)

°Hurricane

°Earthquake

°Earthquake

°Hot and humid climate (tropical)

°Coastal region

°Coastal region

°Warm and dry climate

°Warm and dry climate

P11: Peru (3)

P12: Afghanistan

°Earthquake

°Returns

°Coastal region

°Dry summer & cold winter

°Warm and dry climate

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Source: United Nation Office for the Coordination of Humanitarian Affairs - IRIN

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5. Redesign and optimisation v

Boundary conditions Transitional shelter Transport mass

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5. Redesign and optimisation v

Boundary conditions Emergency shelter Transport mass

Transport weight STRUCTURE emergency shelter kit Transport weight STRUCTURE transitional shelter kit Herhaling titel van presentatie Pag.22 15-112011

→ →

20 kg 100 kg

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5. Redesign and optimisation v

Boundary conditions Transitional shelter Occurring loads

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5. Redesign and optimisation v

Boundary conditions Transitional shelter Occurring loads

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5. Redesign and optimisation v

Boundary conditions Transitional shelter Occurring loads

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5. Redesign and optimisation v

Design approach

EMERGENCY KIT . Lightweight elements . No connection plates

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TRANSITIONAL KIT . More heavy elements . Connection plates

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5. Redesign and optimisation v

Design approach

EMERGENCY KIT . Lightweight elements . No connection plates

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TRANSITIONAL KIT . More heavy elements . Connection plates

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5. Redesign and optimisation v

Design approach Emergency shelter system

⇒ Total weight = 7,86 kg

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5. Redesign and optimisation v

Design approach Emergency shelter system

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5. Redesign and optimisation v

Design approach Emergency shelter system

⇒ Total weight = 19,38 kg

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

+

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=

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Design approach Emergency vs. transitional elements

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5. Redesign and optimisation v

Design approach Emergency vs. transitional elements

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5. Redesign and optimisation v

Structural analysis AIM

→ →

Structural analysis / investigation of the load bearing capacity of the structures defining the loads occurring in connections

FINITE ELEMENT METHOD : ESA PT

Material Characteristics: commonly used aluminium EN AW-6060 Calculation strength f0=160 N/mm² ; Ultimate strength fu=215 N/mm²; E=70000 N/mm²; G=27000 N/mm² ν=0,3

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5. Redesign and optimisation v

Structural analysis LOADS ° Wind velocity: 32m/s or 115km/h → wind load determined by means of Eurocode 1

° ° ° °

snow load: 1000N/m² Nodal force: 500N Self-weight cover: 0,5N/m² Self-weight structure (depending of used section)

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5. Redesign and optimisation v

Structural analysis

Sections:

째 I (h1: 80mm, w1: 80mm, t1: 25 mm; h2: 80mm, w2:40mm, t2: 25 mm) 째 U (h1 : 80mm, w1 : 80mm, t1 : 25 mm; h2 : 40mm, w2:80 mm, t2 : 25 mm) 째 T (h1 : 80mm, w1 : 80mm, t1 : 25 mm)

AIM = investigation of the open character of the shelter system

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5. Redesign and optimisation v

Design approach Transitional shelter system

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5. Redesign and optimisation v

Structural analysis Results ° ° ° ° °

I (h1: 80mm, w1: 80mm, t1: 13 mm) I (h1: 80mm, w1: 40mm, t1: 25 mm) U (h1 : 80mm, w1 : 80mm, t1 : 25 mm) U (h2 : 40mm, w2:80 mm, t2 : 25 mm) T (h1 : 80mm, w1 : 80mm, t1 : 25 mm)

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→ → → → →

OK Global stability OK; Strength NOT OK OK Global stability OK; Strength NOT OK OK

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5. Redesign and optimisation v

Prototyping

Duo pitch without roof overhang + extension

Barrel vault

Duo pitch without roof overhang

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Duo pitch with roof overhang

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5. Redesign and optimisation v

Prototyping Duo-pitched roof

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping

ADAPTATION

DESIGN ISSUE

Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Duo pitched roof with roof overhang

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Details

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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5. Redesign and optimisation v

Prototyping Barrel vault

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6. Conclusions & further research v MECCANO APPROACH → enables to support the process from emergency to transit → enables to adapt to unforeseen circumstances EMERGENCY SHELTER KIT Walled ridge tent of 12 m² = 19,44 kg Ridge tent of 20m² = 15,08 kg TRANSITIONALS SHELTER KIT 1 module shelter = +/- 122 kg > 100kg EASE OF ASSEMBLY duo-pitched roof = easy to assemble even for layman constructors Assembly of the barrel vault = more complex due to sliding bars + different ways of connecting the plates depending on position connection

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6. Conclusions & further research v PROMOTE SUSTAINABLE DEVELOPMENT ecologic . reduce waste and pollution . reduce the depletion of natural

REUSE

resources social economical

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. enable upgrading

ADAPTABILITY

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6. Conclusions & further research v FINITE ELEMENT ANALYSIS CONNECTION PLATES OPTIMISE WEIGHT TESTING WITH LOCAL COMMUNITIES → investigate ease of assembly → investigate sustainability INTEGRATION OF WOOD ELEMENTS IN THE SYSTEM

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flexible and intrgrated shelter  

presentation vub

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