DESCRIPTION

This CCPA standard is formulated to standardize the technical requirements for the design, installation, and acceptance of the prestressing system in wind turbine concrete-steel hybrid towers, and to promote the effective application of prestressing technology in such structures.

This CCPA standard is applicable to the technical requirements for the design, installation, and acceptance of the prestressed system in wind turbine concrete-steel hybrid towers.

DOCUMENT DETAILS

This CCPA standard was drafted by CCPA Wind Turbine Hybrid Concrete Tower Branch.

Issue date: April 11, 2025

Implementation date: August 11, 2025

Pages: 33

Categories: Wind Turbine Concrete-steel Hybrid Tower, Prestressing System

CONTENTS

1 General Provisions      

2 Terms and Symbols

3 General Requirements

4 Prestressing Materials

5 Prestress Design Calculation

6 Construction Regulations

7 Installation and Acceptance Regulations

Appendix A Sheath Initial Friction Resistance Test

Appendix B Optional Prestressing System

Appendix C Single Strand Stressing Field Verification Method

Explanation of Wording 

List of Quoted Standards

Addition: Explanation of Provisions