T/CWEC 34-2022 Active

Scope: This standard specifies the technical requirements for the design, manufacture, installation, and acceptance of bottom-shaft rotating steel gates (also known as steel dams). This standard applies to the design, manufacture, installation, and acceptance of hydraulically driven bottom-shaft rotating steel gates (referred to as "gates" in this standard). Main Technical Content: This standard is divided into a preface and 8 chapters. The main technical content includes: - Preface: Provides the scope of application and conditions for the application of the standard. - Normative references: Lists the standards or norms related to this specification. - Terminology and definitions: Defines and explains the professional terms used in this standard. - Basic provisions: Specifies the basic requirements for the structural design, manufacture, installation, marking, transportation, storage, and control systems of bottom-shaft rotating steel gates. - Design: Clarifies the general provisions, design basis, and design methods for the design of bottom-shaft rotating steel gates, including: overall layout (including gate site selection, project grade, structural layout, gate chamber layout, gate layout, and gate operating mechanism layout), loads, materials and allowable stresses, gate leaf design (including gate leaf structural layout, gate leaf structural calculation, water breakers, and deflectors), bottom-shaft design, component design (including hinge seats, wall-penetrating waterproofing devices, water-sealing devices, link arms, locking devices, other auxiliary devices, and gate operating mechanism rooms), and design standards for gate operating mechanisms and embedded parts. - Manufacturing: Specifies the general provisions for the manufacture of bottom-shaft rotating steel gates, including welding materials, welding processes and requirements, and surface corrosion protection. It also focuses on the manufacturing of gate leaves and components, includi