Please, answers all questions!!(note: Table 12.3 should help finiding the area...etc)Thank you! 1. A twelve-story condominium is planned for construction on the Gulf Coast. The foundation forthe building is to be friction piles (no end bearing). A prestressed concrete fabrication facility iswithin 30 miles of the project (i.e. use square prestressed concrete piles). If the bottom floorinterior 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 factorof safety of 3. Assume the piles have a center-to-center spacing such that the group efficiency is1.0. (i.e. disregard whether or not the pile group acts as a block). NO cross-sectional dimensionshould 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 theproblem on this page.Type of pile to be used (i.e. material)Allowable load for pile group based on problem statementNumber of piles you have selected to be used for each interior columnAllowable load for individual pile based on the number of piles selectedCross-section dimension of each pile in the group – DO NOT EXCEED24 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 toallowable load indicated in problem statement)Calculated ultimate load for individual pile based on the designdimensions selectedCalculated allowable load for individual pile based on the designdimensions selectedTotal length of pile needed to support calculated allowable loadTotal allowable load for pile group TABLE 12.3b Typical Prestressed Concrete Pile in Use (English Units)Design bearingcapacity (kip)MinimumStrength ofNumber of strandsArea of crosseffectiveSectionconcrete|in.diameterTe in.diameterprestress force(kip)PileDsectionPerimetermodulusshape"(in.)(in²)(in.)(in')5000 psi 6000 psi101004044701671251751083334458109104125121444856.1012881802161211940458318914917814196566.137457245295141624657113300203243162566411179683320385162125379.148448265318S183247210132279724054861826860811188638336402S20400801216280133350060020331661014234876414503224848815203391775605727224017312162811166502602245769618234032304710851244778015193342123596716= square section; 0 =octagonal section

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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.

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.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter9: Pile Foundations

Section: Chapter Questions

Problem 9.3P

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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…
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