MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
9th Edition
ISBN: 9781337705202
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Question
Chapter 16, Problem 16.16P
To determine
Calculate the magnitude of the active thrust on the wall.
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Procedure:
1- Define your Cartesian system.
2- Identify the structure's supports and the type
of structure (2D) or 3D
3- If the structure has more than one element
dismember the structure and draw free body
diagram (show all actions and reactions) on
each element independently.
Tip: Pulley is a member
Rope is not an element because it is flexible,
but it shows the force (substitute it with a force)
If the Structure has one element draw free body
diagram for the element.
Tips to show forces on the free body diagram:
3.1- Determine the type of the supports
3.2- Show the unknown support reactions with
any assumed direction, BUT you cannot change
the assumed force direction once you decide.
3.3- In a common joint, you can decide on the
force direction in one element, however, in the
other one you need to follow the Newton's 3rd
law and show the opposite direction.
3.4- If you have multiple action forces in the
system, find force components for each force
independently.
Use Sin/Cos/Tan…
Procedure:
1- Define your Cartesian system.
2- Identify the structure's supports and the type
of structure (2D) or 3D
3- If the structure has more than one element
dismember the structure and draw free body
diagram (show all actions and reactions) on
each element independently.
Tip: Pulley is a member
Rope is not an element because it is flexible,
but it shows the force (substitute it with a force)
If the Structure has one element draw free body
diagram for the element.
Tips to show forces on the free body diagram:
3.1- Determine the type of the supports
3.2- Show the unknown support reactions with
any assumed direction, BUT you cannot change
the assumed force direction once you decide.
3.3- In a common joint, you can decide on the
force direction in one element, however, in the
other one you need to follow the Newton's 3rd
law and show the opposite direction.
3.4- If you have multiple action forces in the
system, find force components for each force
independently.
Use Sin/Cos/Tan…
Procedure:
1- Define your Cartesian system.
2- Identify the structure's supports and the type
of structure (2D) or 3D
3- If the structure has more than one element
dismember the structure and draw free body
diagram (show all actions and reactions) on
each element independently.
Tip: Pulley is a member
Rope is not an element because it is flexible,
but it shows the force (substitute it with a force)
If the Structure has one element draw free body
diagram for the element.
Tips to show forces on the free body diagram:
3.1- Determine the type of the supports
3.2- Show the unknown support reactions with
any assumed direction, BUT you cannot change
the assumed force direction once you decide.
3.3- In a common joint, you can decide on the
force direction in one element, however, in the
other one you need to follow the Newton's 3rd
law and show the opposite direction.
3.4- If you have multiple action forces in the
system, find force components for each force
independently.
Use Sin/Cos/Tan…
Chapter 16 Solutions
MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
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