RISATower

Tower Analizing Software

Overview

Designed specifically for the telecommunications industry, RISATower automates much of the tower analysis and design required by the TIA/EIA 222 Standard. RISATower analyzes towers using the ANSI/TIA-22-G (2005) standard or any of the previous TIA/EIA standards back to RS-222 (1959).

RISATower Specifications

RISATower is a general-purpose modeling, analysis, and design program created specifically for communications towers.

The following Standards are currently implemented:

RS-222, RS-222-A, RS-222-B, EIA-222-C, EIA-222-D, EIA-222-E, TIA/EIA-222-F, and TIA-222-G.

Base Tower Types Supported

• Three or four sided guyed towers
• Three or four sided self-supporting towers
• Ground mounted monopoles (round stepped, round tapered, 18-, 16-, 12-, and 8-sided)
• Three or four sided guyed monopoles

Upper Antenna Types Supported

• Three or four sided latticed poles
• Tubular poles (round stepped, round tapered, 18-, 16-, 12-, and 8-sided)
• Candelabra tops Analysis and Design
• Automatic generation of nodes and elements for 3D frame-truss, truss, or beam-column tower models
• Linear and non-linear (P-delta, cable behavior) finite element analysis (FEA)
• Three modes available: analysis only, analysis and members check, or analysis and lowest weight-optimized design
• Automatic determination of pressure coefficients, wind pressures, ice loads and resulting forces on the tower
• Optimized feed line Effective Projected Area calculations to minimize required wind loading
• Automatic calculation of feed lines shielding
• Calculation of center of pressure due to offset feed lines
• Automatic calculation of K-factors for solid round and single angle members
• Optional inner feed line support tower
• Check or design of bolts in tower members
• Export to RISA-3D for additional analysis and design options Data Entry
• Powerful, easy to use spreadsheets for quick model generation and input verification
• Adaptable three-level structure definition: base tower, upper antenna structure, and top antenna pole
• Guy cables generation with varying radii and guy anchor elevations
• Feedlines, discrete loads (loads from appurtenances), dishes, and user defined loads specification anywhere on the tower
• Comprehensive databases of structural shapes, assemblies, feed lines, dishes, and appurtenances, with a powerful Database Manager, allowing full customization and synchronization across networks
• Flexible units selection: US Customary (decimal or architectural notation) or SI Metric, with user-controlled display precision Results Output
• Extensive, customizable output reports, viewable directly in Microsoft Word or Microsoft Word Viewer
• Finite Element Analysis results for detailed solution diagnostics
• DXF export of model geometry