Page 1

Constructing Environments  ENVS  10003     Journal  Submission  Week  6     1

 

Construction &  Testing  Process  –  Group  2     {2  pieces  of  clear  Radiata  pine  &  2  pieces  of  plywood}     3

Design Our  Design  incorporated  multiple  members  arranged   in  a  formation,  with  alternating  angles.     Whilst  planning  we  considered  the  orientation  of   member  of  timber  and  the  resultant  strength.     We  understood  that  our  design  would  compromise   the  strength  however,  the  results  of  the  test  spoke   volumes  about  loads  and  which  orientations  of  timber   were  the  strongest.      

2

 

 

Josh Davis   641144  

Design &  Orientation   Spacing  and  Gaps  caused  poor  distribution  of  loads   resulting  in  a  weak  design.       Portions  of  the  structure  were  reinforced  and  they   proved  to  be  quite  strong  due  to  the  alternating   orientation  of  timber  and  plywood.       Tension  and  compression  were  distributed  in  a  way   that  the  materials  were  actually  holding  together,  thus   leaving  the  structure  with  strong  and  weak  sections.  

Testing &  Conclusions   Testing  proved  that  our  design  was  weak  and  therefore   we  observed  a  failing  when  placed  under  around   175kgs  of  force.  Where  reinforcements  had  been  m ade   the  structure  held  together,  however  the  due  to  the   weak  sections  in  the  design  it  performed  poorly.         A  far  more  simple  design  approach  may  have  seen  our   structure  perform  better,  with  m embers  of  timber  b eing   orientated  in  a  consistent  m anner.  

Compression

Tension

Orientation Radiata  pine  orientated  on  its  side  (width)  best  held   the  loads     This  is  because  the  span  of  the  timber  enables  the   force  to  be  more  evenly  distributed  therefore,  even   with  the  bottom  side  under  tension  and  the  top  side   under  compression  the  timber  can  maintain  its   structure  up  to  a  point.         When  a  fixture  is  used  to  join  more  than  one  piece   together,  the  strength  properties  of  the  timber  are   undermined.    

 

4

5


Constructing Environments  ENVS  10003     Journal  Submission  Week  6    

 

 

Minimal  fixtures  proved  very  strong  in  Group  1  (left  image)  that   were  provided  with  3  pieces  of  pine  and  2  pieces  of  plywood.     The  orientation  and  shape  of  the  timber  was  crucial  in  the   undertaking  of  a  load     The  beam  was  able  to  hold  in  excess  of  820kgs  before  it  failed  due   to  the  tension  that  was  place  on  the  underside     The  size  of  inflection  was  large  as  timber  can  bend  a  great  deal.     Group  3  (below  image)  had  issues  with  the  plywood  failing  before   the  structural  pine.  This  could  have  been  fixed  through  the   trimming  of  the  edge  before  testing  

Analysis of  Our  Design  

 

 

Josh Davis   641144  


Constructing Environments  ENVS  10003     Journal  Submission  Week  6    

 

 

 

 

Josh Davis   641144  

WALL SYSTEMS

References: Ching,  F.,  2008.  Building  Construction   Illustrated.  4th  Edition.  Wiley  &  Sons,  Inc.,    


Constructing Environments  ENVS  10003     Journal  Submission  Week  6    

 

 

 

 

Josh Davis   641144  

2 Bored  Piers  

Prefabricated walls   Beams  

Concrete Slab  

3

1 Beams

Column Strip  Footing  

6

4

5

Roof

Prefabricated Walls  

Journal entry 6 - 641144  
Read more
Read more
Similar to
Popular now
Just for you