Theme BBAASIC CONCEPTS sin323
unitin structuralsystems
slabs
can span in one or two directions
can be cast monolithic with support beams and columns or be simply supported on wall
or beams
,unit1.2 LoadPaths
Thermal load L α TL
Load combinations
Load Effe
in forces
, un
structures
Remain in equilibrium
stable under applied loads
Instability causes
Too few reactions elements
column buckling SEiaiamBMuPifailure yield or
fractures
EB
1ˢᵗ
ᵗ 9 of beams permanent defamation
overloading a stability Boundfaliure buckling
failure
Local buckling 3 Combination between a material and stability bound
stable Unstable Neutrally stable
returns to equilibrium applied movement causes a body continues to move
after movement is applied an acceleration
awayfrom after the movement is applied
acceleration of the body theposition ofequilibrium neither accelerating nordecelerating
is back towards the
positionof equilibrium Applied
linked to the ability of
a structure to resist
horizontal lateral loads Ballwillrollback Ballwillrollaway continuousrolling
i
can'tprovideload s cabletransfers
b Peda path for horizontal horizontal lateral force
In and provides load
Cunstanet moment connection
cantilever myceliminates
column
G There is
a strong correlation between a structures resistance to horizontal loads and
its overall stability
Global Stability Local stability
able to resist lateralforces but also side sway stability of each part of the
caused by unsymmetrical verticalloads or structural element
structural layout
Elementstability
stability ofeach structural element
unitin structuralsystems
slabs
can span in one or two directions
can be cast monolithic with support beams and columns or be simply supported on wall
or beams
,unit1.2 LoadPaths
Thermal load L α TL
Load combinations
Load Effe
in forces
, un
structures
Remain in equilibrium
stable under applied loads
Instability causes
Too few reactions elements
column buckling SEiaiamBMuPifailure yield or
fractures
EB
1ˢᵗ
ᵗ 9 of beams permanent defamation
overloading a stability Boundfaliure buckling
failure
Local buckling 3 Combination between a material and stability bound
stable Unstable Neutrally stable
returns to equilibrium applied movement causes a body continues to move
after movement is applied an acceleration
awayfrom after the movement is applied
acceleration of the body theposition ofequilibrium neither accelerating nordecelerating
is back towards the
positionof equilibrium Applied
linked to the ability of
a structure to resist
horizontal lateral loads Ballwillrollback Ballwillrollaway continuousrolling
i
can'tprovideload s cabletransfers
b Peda path for horizontal horizontal lateral force
In and provides load
Cunstanet moment connection
cantilever myceliminates
column
G There is
a strong correlation between a structures resistance to horizontal loads and
its overall stability
Global Stability Local stability
able to resist lateralforces but also side sway stability of each part of the
caused by unsymmetrical verticalloads or structural element
structural layout
Elementstability
stability ofeach structural element
