Bamboo Building

Wall

Wall opening

wea -ther resis -tance

water resis -tance

sound resis -tance

fire resis- tance

Co -vers

Frame

Filler

Co -vers

Frame

Co -vers frame

Full culm

yes

yes

-

yes

yes

fair

fair

fair

fair

Half culm

yes

yes

-

yes

yes

yes

fair

fair

fair

fair

Flat

yes

-

-

yes but less common

-

-

fair

bad

bad

bad

Woven flat

yes

-

-

yes but less common

-

-

fair

bad

bad

bad

Split

yes

-

-

yes

-

-

fair

bad

bad

bad

Wo -ven split

yes

-

-

yes

-

-

fair

fair

fair

bad

Lami -nated split

yes

-

yes

-

-

good

good

good

fair

Wo -ven sliced mat

yes

-

-

yes

yes with spe-cial section

yes with special section

fair

fair

fair

bad

Ply- sliced mat

yes

yes with special section

-

yes

-

-

good

good

good

fair

Bam- boo reinfor ced cem- ent morta

yes

bam

boo as tempo-rary frame

cem -ent mortar

-

yes with special sec- tion

yes with spe-cial section

good

good

good

good

Bamboo reinfor -ced clay soil

yes

bam boo as temporary frame

clay soil

-

-

-

fair

bad

good

good

Attribues of Connections and their values

optimize the use of bamboo as a construction material by observing the following rules:

connection type

one dimen -sion

two

dimen -sions

three dimen -sions

1. Whole bamboo culms should be limited to reinforcing distribution only.

connection form

I

II

III

2. All reinforcements should consist of half-culms with the nodes exposed upwards to increase bond strength.

members material

full culm

half culm

lami -nated bamboo

ply bam -boo

3. All culms should be cut approximately 50 mm above ground level and stacked vertically for drying.

connection force(s)

com -pres -sion

tens -sion

shear

bending moment

don't care

4. The dried half-culm bamboos should be moisture sealed and treated for bond by immersing both ends up to a depth of 250 mm in an adhesive. Subsequently, both ends may be lightly sprinkled with coarse clean sand and the excess material removed. Polyester resins

are cheaper and equally effective as epoxics for adhesion.

connection filler

wood or lamina -ted bamboo or ply bamboo

full culm bamboo

half cum bamboo

steel plate

cement mortar

connection material

wood pin or bamboo pin

steel bolt

natural ropes

glue

nail

com bina -tion

5 After

the bamboo has been treated as above the remaining

half-culm should be immersed for four days in a suitable sealant

structure type

truss struc -ture

frame struc -ture

mix of linseed oil and turpentine). For reinforcing distribution whole culms can be immersed in the sealant without treating the ends. Palm trees occur in varying forms and densities throughout the hot, humid regions and are commonly used as food and to make mats, boats, and houses. The trunks of palm trees are often used for the construction of the basic framework of a house or as roof beams. Palm frond stems are ideal material where high temperatures and humidity make air movement vital. The stems of palm fronds can be used for non-structural panels curtain walls, screens, and as a base for plastering.