donovan paksbab isbc

8/13/2019 Donovan Paksbab Isbc

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PAKSBAB - Pakistan Straw Bale and Appropriate Building

A project of Builders Without Borders

Surkhab Khan, C.O.O.

Darcey Donovan, P.E., C.T.O.

www.paksbab.org


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Kashmir Earthquake Oct. 8, 2005

Mw = 7.6

86,000 lives lost

100,000 seriously injured

3,500,000 people homeless

780,000 buildings destroyed


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How it all started (simplified version):

Darcey volunteers to help advise a straw bale pilot project with Dosti

Welfare Organization in northern Pakistan

Surkhab is Assistant Program Officer and facilitates project


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PAKSBABs mission:

To apply straw bale and other appropriate building solutions to

protect and improve the lives of the poor, especially in seismic and

severe temperature regions of the developing world.


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What makes PAKSBABs straw bale

system unique?

Earthquake resistant AND affordable Simple load bearing design


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Straw bales are made with locally fabricated compression

moulds and manually operated farm jacks


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Foundation construction with fishing net for seismic reinforcement.

Tops and sides of rock foundation are plastered with soil cement.


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Straw bales are placed in a running bond with bamboo pins for

out-of-plane support. Trusses are connected to top plates.


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Ceiling is insulated with light straw clay. Slip is applied to walls, then

base plaster coat. Fishing net is spread and attached to framing.


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Second and final plaster coats are applied

and finished with clay paint or lime wash


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Jabori Womens Community

Center, 2006


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Hillkot Residence, 2006-2007


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One-room 3-house project,

Mansehra & Shinkiari, 2007


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Community Development Program

Gul Khan / Ghoria Bibi

Qalandarabad, 2008


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Bach Christian Hospital

Employee Housing, 2009


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Wheelchair accessible homes

for SCIPPER patients, 2011-12


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Engineers Without Borders Denmark

10-House Project, 2012


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PAKSBAB Seismic Research Project

2008-2009

A NEES Shared Use Project

@ the University of Nevada, Reno

Sponsored by the Earthquake Engineering

Research Institute (EERI)

In-plane cyclic tests of 4 straw bale wall assemblies 8 shake table tests of full scale 14x14x 10 house


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Straw bale wall specimen construction


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In-plane cyclic test

4 foot wall with light detailing (no reinforcement)

In-Plane Cyclic Test Protocol


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4 foot wall with medium detailing (#9 fishing net reinforcement)


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4 foot wall with heavy detailing (#12 fishing net reinforcement)


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8 foot wall with heavy detailing (#12 fishing net reinforcement)


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Wall Test 4 Load vs. Displacement

-2500

-2000

-1500

-1000

-500

0

500

1000

1500

2000

2500

-6 -4 -2 0 2 4 6

Displacement (in.)

Load(

lb)

Wall Test 3 Load vs. Displacement

-1000

-800

-600

-400

-200

0

200

400

600

800

-10 -8 -6 -4 -2 0 2 4 6

Displacement (in.)

Load(

lb)

PAKSBAB Wall Test 1

-600

-400

-200

0

200

400

600

-4 -3 -2 -1 0 1 2 3 4

Lateral Wall Displacement (inches)

Lateral

allCap

acity(lbs

PAKSBAB Wall Test 2

-800

-600

-400

-200

0

200

400

600

800

-10 -8 -6 -4 -2 0 2 4 6

Lateral Wall Displacement (inches)

Lateral

allCap

acity(lbs


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Straw bale house construction on portable platform /

lifting onto shake table


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House survived 8 increasing levels of earthquakes / 0.8g acceleration -

larger than 0.3-0.6g estimates of the Kashmir Earthquake


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To view a video of PAKSBABs shake table tests -

http://nees.unr.edu/projects/straw_bale_house.html


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Whats next: Global Social Benefit Incubator at Santa

Clara University / Jawad Aslam, C.E.O.

Ansaar Management Company

Bari Imam Accessible Group Home

Rural Permaculture Pilot Project

Low-income Housing Development Pilot

Project


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Thoughts:

Organization/company building and SBbuilding co-emphasis

Systems (permaculture) approach

Non-profit versus for-profit social enterprise

Microfinance mortgages need to be

investigated

Carbon project certification / offsets subsidize

micro-income clients


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Providing appropriate building solutions

for people, planet and peace

www.paksbab.org

donovan paksbab isbc

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