Lesson 5: Load Path and

closedlavenderUrban and Civil

Nov 25, 2013 (3 years and 6 months ago)

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Lesson 5: Load Path and
Tributary Area

Simple
-
Braced Building


All Connections Simple (pins)


Building System Parts/Terms


Building System Parts/Terms


Building System Parts/Terms


Column

Building System Parts/Terms


Column

Fill Beam

Building System Parts/Terms


Column

Fill Beam

Girder

Building System Parts/Terms


Column

Interior Fill Beam

Exterior Girder

Exterior Fill Beam

Interior Girder


1 Story Building

Brace (truss)

Slab = “Diaphragm”


Brace prevents

X
-
direction

Movement of
this point

Slab = “Diaphragm”


Brace prevents

X
-
direction

Movement of
this point

Brace prevents

Y
-
direction

Movement of
this point

Slab = “Diaphragm”


Brace prevents

X
-
direction

Movement of
this point

Brace prevents

Y
-
direction

Movement of
this point

Slab is rigid in X
-
Y
Plane.

Slab is connected to
every other point

Slab = “Diaphragm”


Braced

Slab is rigid in X
-
Y
Plane.

Slab is connected to
every other point.

Therefore: Slab +
braced points =
Every
column is braced.

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Slab = Diaphragm: a body that with planar rigidity.
With several braces and a floor diaphragm, all columns
are braced


Braced

Slab is rigid in X
-
Y
Plane.

Slab is connected to
every other point.

Therefore: Slab +
braced points =
Every
column is braced.

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced

Braced


1 Story Building

Beam
-
Column Connections: Pins

Foundations: Pins


1 Story Building

mmmmm
… Strangely familiar…..


1 Story Building


1 Story Building


1 Story Building


1 Story Building


Homework Lesson 4


Beam FBD’s

Beam FBD’s

6
k

6
k

6
k

Gravity, only

Beam FBD’s

60
k

60
k

60
k

60
k

60
k

60
k

Gravity, only

Column FBD’s

60
k

60
k

60
k

60
k

60
k

60
k

60
k

60
k

120
k

120
k

Now, Adding Lateral Force

Column FBD’s

60
k

60
k

60
k

60
k

60
k

60
k

60
k

60
k

120
k

120
k

0
k

0
k

0
k

Now, Adding Lateral Force

Column FBD’s

60
k

60
k

60
k

60
k

60
k

60
k

60
k

60
k

120
k

120
k

0
k

0
k

0
k

6
k