ANSI/TIA-1019 DRAFT - Inti

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ANSI/TIA-1019 (DRAFT)Structural Standards for Installation, Alterationand Maintenance of Communication Towers,Antennas and Antenna Supporting Structures
Historical Development of Standards• SEI/ASCE 37 – 02 Design Loads on Structures During Construction:Approved in 2001• TIA-1019 Gin Pole Standard was approved January 9, 2004.• TIA-222-G– Revision of TIA/EIA-222-F– Standard for design of communication structures – Aug. 2005• TIA-1019- Construction Standard scheduled for approval in the Fall of2009– Includes the Gin Pole Standard
Page 1: Tower Construction, Tower Standards
Page 5 and 6: The New Standard will incorporate t
Page 7 and 8: What is a Gin Pole• It is a devic
Page 9 and 10: Development of Gin Pole Standard•
Page 11 and 12: This was followed by full scale tes
Page 13 and 14: TR 14.7Gin Pole Sub-Committee Conce
Page 15 and 16: Advantages for the Broadcaster• A
Page 17 and 18: • 1.0 General• 2.0 Construction
Page 19 and 20: Definitions• Competent Rigger: a
Page 21 and 22: Qualified Person• Have met all th
Page 23 and 24: Rigging Plan Requirements• A rigg
Page 25 and 26: Rigging Plan ClassificationsClassDe
Page 27 and 28: Climbing Facilities• Maintain the
Page 29 and 30: Types of Hoist AnchorageLoad LineHo
Page 31 and 32: Supporting Structural Loading Durin
Page 33 and 34: Guy Wire Installation• Guy wires
Page 35 and 36: Guy Anchor Temporary Support• Sli
Page 37 and 38: Slippage Connections• When fricti
Page 39 and 40: Temporary Backup System• The back
Page 41 and 42: • Block forces transmitted to the
Page 43 and 44: Lifting Existing Loads from Structu
Page 45 and 46: Gin Pole Operation and Use• Scope
Page 47 and 48: Monitoring a Lift• Load Testing
Page 49 and 50: Tip DeflectionHelps VerifyLiftedLoa
Page 51 and 52: Changing Degrees to InchesHface
Page 53 and 54:
Special Engineering Lift1. It is th
Page 55 and 56:
“Special Engineered Lifts” can
Page 57 and 58:
Shot Thru Transit
Page 59 and 60:
Load off the Ground with Minimum Ta
Page 61 and 62:
Regular Tag Situation
Page 63 and 64:
Bridle Slings• Controls the stabi
Page 65 and 66:
Straight and Trolley Tag Systems
Page 67 and 68:
Controlling the Load Line
Page 69 and 70:
• Conditions in which thestructur
Page 71 and 72:
Operational and Non-Operational Win
Page 73 and 74:
Tilted Gin Pole Use to be Covered
Page 75 and 76:
Repairs and Modifications• Repair
Page 77 and 78:
Leg Inspection Criteria• Toleranc
Page 79 and 80:
Re-Use of Gin Pole Fasteners
Page 81 and 82:
Bridle and Basket Forces• The gin
Page 83 and 84:
Gin Pole Design Method• ASD - AIS
Page 85 and 86:
Gin Pole Free Body Diagramsfor Engi
Page 87 and 88:
Impact Factors for Gin Poles(Im)•
Page 89 and 90:
Load Line in Center of Pole• Rest
Page 91 and 92:
Rooster Head
Page 93 and 94:
Track Loading and Design
Page 95 and 96:
Support Conditions Affect Gin PoleC
Page 97 and 98:
250’ Tower-Strength RequirementsC
Page 99 and 100:
Guy Anchor Rod CorrosionFoundation
Page 101 and 102:
Tower Failure due toAnchor Rod Corr
Page 103 and 104:
Under ground and thus undetected gu
Page 105 and 106:
Why does Steel Corrode?• If this
Page 107 and 108:
Basic Corrosion CellInternal or Ext
Page 109 and 110:
Causes of Electrical Current• Dif
Page 111 and 112:
External Corrosion caused byDissimi
Page 113 and 114:
Internal Corrosion caused byDissimi
Page 115 and 116:
Internal Corrosion caused by dissim
Page 117 and 118:
Why doesn’t hot dip galvanizing p
Page 119 and 120:
How to Evaluate Corrosion Risk Prob
Page 121 and 122:
Three ways to report Soil Particle
Page 123 and 124:
Aggressive Soil TypesFrom Geo-Tech
Page 125 and 126:
Moisture ContentFrom Geo-Tech Repor
Page 127 and 128:
Hydrogen Ion Activity (pH)From Geo-
Page 129 and 130:
Soils with SulfurFrom Geo-Tech Repo
Page 131 and 132:
Visual and Agriculture DataWater Le
Page 133 and 134:
Visual InspectionEvaluate Site Soil
Page 135 and 136:
Another easy way to view soil class
Page 137 and 138:
Visual InspectionBacteria sources,
Page 139 and 140:
Visual InspectionLook for evidence
Page 141 and 142:
National Pipeline Mapping System (N
Page 143 and 144:
Soil Properties, On Site TestingMeg
Page 145 and 146:
Predicting Active Corrosion Cell by
Page 147 and 148:
Predicting Active Corrosion Cell by
Page 149 and 150:
• Hand digging around anchorshaft
Page 151 and 152:
Limited ExcavationGround LevelMud
Page 153 and 154:
Total Excavation• Expensive• Ca
Page 155 and 156:
Ultrasound: Longitudinal Wave
Page 157 and 158:
Ultrasound: Limited Surface Area, s
Page 159 and 160:
Field Application of Longitudinal W
Page 161 and 162:
Ultrasound: Shear Wave,also called
Page 163 and 164:
Ultrasound: Shear WaveLoud Entry No
Page 165 and 166:
Making Longitudinal Wave Work
Page 167 and 168:
Limiting Factors in using Ultra Sou
Page 169 and 170:
20’ x 2-1/2” dia Rod, 25% x-sec
Page 171 and 172:
Ultra Sound Field Results
Page 173 and 174:
Concrete Encasement• Associated P
Page 175 and 176:
Associated Problems• Difficult to
Page 177 and 178:
Sacrificial AnodesAssociated Proble
Page 179 and 180:
A Better Sacrificial AnodeMAG-Rod b
Page 181 and 182:
Summary• Corrosion begins when th
Page 183 and 184:
SummaryUltra Sound is the most prom
Page 185:
Construction Standards&Guy Anchor R
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ANSI/TIA-1019 DRAFT - Inti

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