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vikram.jeet
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PostPosted: Sun Jan 02, 2022 8:32 am    Post subject: Reply with quote

As per a report on TV Channel GNT :

TREE HOUSE IN RAJASTHAN
4 STOREY 40  SQ FT HOUSE IN BURARI DELHI ( 104 feet)
SLANT CLUB HOUSE BUILDING IN GAZIABAD , UP

All these building structures are shown and quite interesting .
May be available on net.

Tree house is built by a civil engineer , 4 storey with a tree trunk in center and branches out. Steel construction without disturbing the natural tree.

4 storey house is built by a mason size 10 4 feet , smallest in world . Mason constructed a bungalow for rich man who rewarded him with a vacant piece of plot of 40 sq ft.

TILTED CLUB HOUSE BUILDING is created by an Architect though inside columns str are straight but outside walls , false pillars are slant at about 25 degrees or so.
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vikram.jeet
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PostPosted: Tue Jan 04, 2022 2:11 pm    Post subject: Reply with quote

COLUMN BENDING MOMENTS (Gravity Loading) ,   - MANUAL DESIGN


In case analysis is not performed , Old version of IS 456 - 1957 & 1964 versions  provide following values for Column moments at a joint .

Single Bay Frames ( Portal frames)
Foot of upper column Mu = [ Ku / ( Ku + Kl + 0.5 Kb )]* M

Head of Lower column Ml = [ Kl / ( Ku + Kl + 0.5 Kb ) ] * M

Ku - - Stiffness of upper column
Kl - - Stiffness of Lower column
Kb -   Stiffness of beam
M - - Fixed end moment from beam being unbalanced moment in single bay frame

Multi bay frames
Exterior bay
Foot of upper column Mu = [ Ku / ( Ku + Kl + Kb ) ]* M'

Head of Lower column Ml = [ Kl / ( Ku + Kl + Kb ) ] * M'

Interior Bay :
Foot of upper column Mu = [ Ku / ( Ku + Kl + Kb1 + Kb2 ) ] * M '

Head of Lower column  Ml = [ Kl / ( Ku + Kl + Kb1 + Kb2 )] * M '

M' - -  Unbalanced moment at joint
Kb1 -  Stiffness of left beam
Kb2 - - Stiffness of right beam

Note :  Earlier frame analysis was performed manually using Kani method / Two cycle method  - time consuming and above formulas were very handy.
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