Chris Sampson Jake Echeverria May 5th, 2011

Destruction of Haiti Rebuild Haiti Implementation: EBNet Ecological Builders

Network

BBBC Exposition Recycled Rubble

CMUs Bamboo Framing

Question to be solved: Can bamboo poles be

used as an adequate and sustainable construction material to help in the reconstruction of houses and other infrastructure in Haiti?

Brainstorm Connection Design

T-Connection Braced Frame to CMU

Block Wall Braced Frame to Top

Cord Column to CMU Block

wall Construction Materials

Usefulness Availability Cost

Construction Methods

Construct connections Calculations Hurricane Wind Load

Analysis (IBC) Plastic Hinging and

Yield Displacement Limits

Testing to Failure Evaluate and Report

Simplicity Structural Demands Seismic Loading Hurricane/Wind Loading

Controlling Failure Mode

Materials Bamboo Rebar Wire Mortar

Construction Methods Lack of tools Avoid clashing within

connections Use of labor force

Mechanical Components Lashing and Scaffolding

Types of Testing Connection Modification Rebar dowel

configuration Wire wrapping pattern

Building Modification Braced frame orientation Window and doors

spacing

Construction Modification Fish-mouthing

techniques Pouring of mortar Braced frame to CMU

wall scheduling

IBC Wind Analysis qz=0.00256KzKztKdV2I

Plastic Hinging Mechanics Structural Analysis ATC 24 Loading Protocol

Earthquake

T-Connection

Column to CMU Block Wall

Bamboo Cost per lineal foot = $3.67 Projected lineal footage = 1000 feet (with waste)

Rebar Cost per lineal foot = $0.40 Projected lineal footage = 120 feet

Mortar Cost per bag cement = $10.00 Projected number of bags = 5

Wire Cost per lineal foot = $0.06 Projected lineal footage = 1,730 feet

Total Cost = $10.80 per square foot

Design changes From test #1 changes

were made to connections

Constructability Bamboo

splitting/fraying Inserting mortar

Time for curing 7 day curing to keep

testing on time Testing Steel testing rig for

compression and tension

Balancing applied loading

ACT 24 protocol

Bamboo, No. 3 rebar, 14 gauge wire, and mortar are very effective materials for the typical connections necessary our Haitian home.

All materials are affordable, readily available, and safe to build with.

Controlled failure modes in steel components allow for inconsistencies in bamboo and open door to standardize bamboo poles as a reliable building material.

Ecological Building Network Professors Aschheim and Nilsson Center for Science Technology and Society Santa Clara University School of Engineering Student Help: Guad

Applied Wind Loading Internal Pressures

Applied Wind Loading Internal Pressures

Bamboo Pole Connection Design and ConstructionHaiti Earthquake January 2010Devastated InfrastructureOne Million Homeless PersonsBackgroundEBNet HouseConnectionsStrategyCriteria and Design ConstraintsPreviously Developed ConnectionsProject Innovations CalculationsSlide Number 13Test of T-ConnectionBraced Frame Top Cord ConnectionBraced Frame to CMU Block WallBraced Frame ConnectionBraced Frame TestSlide Number 19Cost BreakdownDelays and Challenges OvercomeConclusionSpecial thanks to:North-South Windward CalculationsEast-West Windward Calculations