Find a copy in the library
Finding libraries that hold this item...
Details
| Additional Physical Format: | Online version: Smith, B. W. (Brian Ward), 1937- Communication structures. London : Thomas Telford, 2007 (OCoLC)608154268 |
|---|---|
| Document Type: | Book |
| All Authors / Contributors: |
B W Smith |
| ISBN: | 9780727734006 0727734008 |
| OCLC Number: | 64555182 |
| Description: | xiv, 338 p. : ill. ; 24 cm. |
| Contents: | * History * Design considerations General Choice of site Choice of structure Economic considerations Environmental considerations Electronic considerations General Antenna characteristics Low-frequency antennas Medium-frequency antenna systems VHF and UHF antennas Digital audio broadcasting Mobile phone antennas Effect on existing services of subsequent additional antennas * Failures of masts and towers General Icing failures Design/detail failures Maintenance failures Aircraft damage Vandal damage Lessons to be learned * Forms of structure General Timber towers Concrete towers Lattice steel towers Lattice guyed masts Tubular guyed masts Concrete guyed masts Other forms of communication structures * Meteorological parameters General Wind Wind climate Boundary layer Serviceability wind speeds Atmospheric icing General Physics and theoretical modelling of ice accretion Empirical models to estimate ice loads on Structures Earthquakes Temperature Other meteorological aspects * Wind resistance General Symmetrical structures without ancillaries Symmetrical structures with limited ancillaries General method for structures containing ancillaries Linear ancillaries Discrete ancillaries Cables Communications structures Measurements on scale model of communications tower Discrepancy between wind tunnel tests and full-scale measurements Icing * Response General Lattice towers Guyed masts General Frequency domain analysis Time domain analysis Simplified methods Summary * Strength Introduction Design against buckling -- individual members General Influence of local and torsional buckling Angle leg members Angle bracing members Tubular leg members Tubular bracing members Solid round members Secondary members ('redundants') Bracing types Compound members Tension Connections General Flange joints in tubular or solid round leg members Guy connections * Cables General Types of cables Strength of guy ropes Rotational characteristics of steel ropes Modulus of elasticity Prestretching Still air tension Terminations General Types of terminations * Aerodynamic stability General Vortex shedding General Background and critical wind speed Practical implications Damping devices Galloping General Critical wind speed Damping devices * Fatigue General Lattice towers Lattice masts Guys * Foundations General Foundation types Type I: to resist uplift Type II: to resist overturning Type III: to resist down thrust Type IV: guy anchorages * Codes and standards History General Wind loading Ice loading Strength Other aspects Current codes Communications structures General Comparison of current Codes * Access and safety General IASS Recommendations for safe access * Fabrication and erection Materials and fabrication Steel for towers and mast columns Aluminium Timber Plastics Erection General Erection of lattice towers Erection of guyed masts * Maintenance General Constraints Minimizing maintenance at the design stage Manuals * Seismic response General Seismicity and earthquake-resistance performance levels Prediction of seismic response of structures General Self-supporting lattice towers Monopoles Guyed masts Antennas and ancillary components Geotechnical considerations * Annex A Codes of Practice and Design Standards General Comparisons of National Codes Scope Limit states/reliability classes Wind structure Wind resistance Ice loading Displacements/serviceability Partial safety factors Strength Compressive strength Tensile strength Guy assemblies Prestretching Terminations Initial tensions Erection Insulators Access * Annex B IASS Working Group Number 4: Masts and Towers Brief history Role in the future The members of the Group References Index |
| Responsibility: | Brian W. Smith. |
Reviews
User-contributed reviews
Add a review and share your thoughts with other readers.
Be the first.
Add a review and share your thoughts with other readers.
Be the first.
Tags
Add tags for "Communication structures".
Be the first.
