1. A twelve-story condominium is planned for construction on the Gulf Coast. The foundation for the building is to be friction piles (no end bearing). A prestressed concrete fabrication facility is within 30 miles of the project (i.e. use square prestressed concrete piles). If the bottom floor interior column loads are 500 tons and pile groups are not to exceed eight, determine the cross- sectional dimensions and length of piles required to support the interior column loads using a factor of safety of 3. Assume the piles have a center-to-center spacing such that the group efficiency is 1.0. (i.e. disregard whether or not the pile group acts as a block). NO cross-sectional dimension should exceed 24 inches. The piles are fully embedded in sand for which y = 118 lb/ft’, '= 32° and &' = 0.75¢* You need to fill in your answers in the table below. Include applicable units. Do not work the problem on this page. Type of pile to be used (i.e. material) Allowable load for pile group based on problem statement Number of piles you have selected to be used for each interior column

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
1. A twelve-story condominium is planned for construction on the Gulf Coast. The foundation for
the building is to be friction piles (no end bearing). A prestressed concrete fabrication facility is
within 30 miles of the project (i.e. use square prestressed concrete piles). If the bottom floor
interior column loads are 500 tons and pile groups are not to exceed eight, determine the cross-
sectional dimensions and length of piles required to support the interior column loads using a factor
of safety of 3. Assume the piles have a center-to-center spacing such that the group efficiency is
1.0. (i.e. disregard whether or not the pile group acts as a block). NO cross-sectional dimension
should exceed 24 inches.
The piles are fully embedded in sand for which y = 118 lb/ft°, ø'= 32° and &' = 0.75ø'
You need to fill in your answers in the table below. Include applicable units. Do not work the
problem on this page.
Type of pile to be used (i.e. material)
Allowable load for pile group based on problem statement
Number of piles you have selected to be used for each interior column
Allowable load for individual pile based on the number of piles selected
Cross-section dimension of each pile in the group – DO NOT EXCEED
24 INCHES. (all pile should have the same dimensions)
Length of an individual pile (all pile should have the same length)
Ultimate load required for individual pile (Factor of Safety applied to
allowable load indicated in problem statement)
Calculated ultimate load for individual pile based on the design
dimensions selected
Calculated allowable load for individual pile based on the design
dimensions selected
Total length of pile needed to support calculated allowable load
Total allowable load for pile group
Transcribed Image Text:1. A twelve-story condominium is planned for construction on the Gulf Coast. The foundation for the building is to be friction piles (no end bearing). A prestressed concrete fabrication facility is within 30 miles of the project (i.e. use square prestressed concrete piles). If the bottom floor interior column loads are 500 tons and pile groups are not to exceed eight, determine the cross- sectional dimensions and length of piles required to support the interior column loads using a factor of safety of 3. Assume the piles have a center-to-center spacing such that the group efficiency is 1.0. (i.e. disregard whether or not the pile group acts as a block). NO cross-sectional dimension should exceed 24 inches. The piles are fully embedded in sand for which y = 118 lb/ft°, ø'= 32° and &' = 0.75ø' You need to fill in your answers in the table below. Include applicable units. Do not work the problem on this page. Type of pile to be used (i.e. material) Allowable load for pile group based on problem statement Number of piles you have selected to be used for each interior column Allowable load for individual pile based on the number of piles selected Cross-section dimension of each pile in the group – DO NOT EXCEED 24 INCHES. (all pile should have the same dimensions) Length of an individual pile (all pile should have the same length) Ultimate load required for individual pile (Factor of Safety applied to allowable load indicated in problem statement) Calculated ultimate load for individual pile based on the design dimensions selected Calculated allowable load for individual pile based on the design dimensions selected Total length of pile needed to support calculated allowable load Total allowable load for pile group
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Layout and design
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning