1.0.1 This code is formulated to go through with national technical and economic policies during design of oil and gas transportation pipeline aerial crossing engineering, so as to achieve state-of-art technology, safety and reliability, quality security, economy and rationality.
1.0.2 This code is applicable to design of construction, reconstruction and extension of steel pipeline aerial crossing engineering for transferring crude oil, finished oil, natural gas, coal gas and liquefied petroleum gas at normal temperature in districts where ground shock peak acceleration is less than or equal to 0.40g.
1.0.3 Design documents of pipeline aerial crossing engineering shall give clear indication of design life of the structural engineering, and describe weld seam style of steel structure of the structural engineering, quality grade of weld seam and weld seam detection standards.
1.0.4 Not only the requirements stipulated in this code, but also those in the current relevant ones of the nation shall be complied with for design of pipeline aerial crossing engineering.
1 General Provision
2 Terms
3 Basic Requirements
3.1 General requirements
3.2 Load and load effect combinations
3.3 Materials
3.4 Design index
3.5 Structure and member deformation
4 Survey and Investigation
4.1 Survey
4.2 Investigation
5 Structural Analyses
5.1 General requirements
5.2 Linear elasticity analytical procedures
5.3 Nonlinear analytical procedures
6 Structural Design
6.1 The determination of structural style and the physical dimension
6.2 Pipeline intensity and stability calculation
6.3 Thermal compensation and deck facilities
6.4 Hanging steel wire rope and tendon
6.5 Rigging
6.6 Tower and truss
7 Base Foundations
8 Construction Requirements
8.1 General requirements
8.2 Corrosion prevention and thermal retardation
9 Aseismic Design
9.1 General requirements
9.2 Antiseismic calculation
10 Construction Requirements of Aerial Pipeline
10.1 Assembly
10.2 Welding
10.3 Inspection
10.4 Pressure test and pipe cleaning
10.5 Corrosion prevention
11 Health, Safety and Environment
Annex A Sketches of Structural Styles of Various Pipeline Aerial Crossing Engineering
Explanation of Wording in this Code
