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Date 5/4/2010
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TBWall Report
Project InformationDesigned ByOrganizationDateProjectJob #Client
Number of Tieback Levels
Units System
Geometryab
hL
PropertiesEfy
Max. Deflection
Beam Shape
Tieback DataAngle1
One
ft
9.0 ft16.0 ft
25.0 ft27.5 ft
29000 ksi50 ksi
0.5 in
W14X82
15
5/4/2010
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Organization
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Date 5/4/2010
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Design Philosophy
The analysis is based on "Equivalent Beam Method" first proposed by Blum and
explained in detail in "Foundation Design" Teng, 1962, 1st & only edition or in
"Foundation Engineering" Jumikis, 1987 2nd ed.
The design is based on classical structural analysis:
* This program uses classic-beam-theory beam elements to solve the multispan
tieback design.
* The equivalent nodal loads for each span are determined by numerical
integration of the beam equations to allow for the non uniform loads.
* The equivalent nodal loads, the stiffness matrix, and the support conditions are
used to solve for the support reactions and the support rotations.
* The support reactions are then used to numerically integrate the entire span
for values to display in the plots, and to find the max/min values.
* Steel Shapes only include compact sections, If noncompact sections are
desired, additional design checks are required.
* The deflection output is based on structural analysis but an independent check
should be made by Finite Element method or by site surveying.
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Organization
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Date 5/4/2010
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Project
Job #
Reaction 1 Reaction 2-91.97 kips -30.12 kips
Maximum ShearMaximum MomentMaximum Deflection
-57.6 kip at 9.00 ft-169.8 kip-at 18.80 ft-0.3721 in at 18.62 ft
Required AwRequired ZxUtilized Ix
2.88 in268.07 in374%
Adequate for ShearAdequate for BendingAdequate for Deflection
Tieback ForceUnbonded Tieback LengthTest Load
R195.2 kips15.0 ft126.6 kips
Lateral Torsional Buckling CheckLbCbryIyh0JrtsLpLrFcrMn/Q
Axially-Loaded Member CheckPLKAKL/rFeFcrPn/Q
192 in12.48 in148.00 in413.45 in5.07 in42.8 in105.1 in396.7 in91 ksi307 kip-ft
0 kips16 ft0.824.0 in261.975 ksi38 ksi543 kips
Required EmbedmentTschebotarioff Check
Combined Forces Utilization
15.25 ft13.25 ft
55%
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Organization
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Project
Job #
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Organization
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Organization
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Organization
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Organization
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