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1. (WO2017039922) CONCRETE EQUIPMENT TOWER WITH TENSIONING TENDON GUIDE SLOT

Pub. No.:    WO/2017/039922    International Application No.:    PCT/US2016/045221
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Aug 04 01:59:59 CEST 2016
IPC: E04H 12/12
E04H 12/16
F03D 13/20
H01Q 1/12
Applicants: SIEMENS GAMESA RENEWABLE ENERGY, INC.
WIND TOWER TECHNOLOGIES, LLC
Inventors: KIOUSIS, Panos
LOCKWOOD, James D.
Title: CONCRETE EQUIPMENT TOWER WITH TENSIONING TENDON GUIDE SLOT
Abstract:
A precast concrete post-tensioned segmented equipment tower (100) including a lower segment (1078) of a relatively larger diameter, an upper segment (109) of a relatively smaller diameter, and a transition segment (116) there between, with a post-tensioning tendon (200) spanning these segments and imparting a compressive preload between the segments, and a slot (212) formed in an inwardly protruding surface (214) of the transition segment for receiving and laterally retaining the tendon during installation and tensioning. The slot may be defined in a saddle (300) formed of high density polyurethane which is cast into the inwardly protruding surface. An innner surface (520) of the saddle may be curved to impart a bend (530) in the tendon.