This Specification specifies the structural forms, material requirements, load and earthquake action, structural calculation, subgrade and foundation as well as construction requirements for tower-type equipment foundation in petrochemical enterprises.
This Specification is applicable to the design for tower-type equipment foundation and vertical vessel foundation not lower than 10m above ground in petrochemical enterprises (hereinafter all referred to as tower foundation).
Foreword i 1 Scope 2 Normative References 3 Main Symbols 4 Structural Forms 5 Materials 6 Load and Earthquake Action 6.1 Load Classification 6.2 Live Loads on the Platform 6.3 Wind Load 6.4 Earthquake Action 7 Load and Earthquake Effect Combinations 8 Structural Calculation 8.1 General Requirements 8.2 Drum and Cylinder Structure 8.3 Ring Frame Structure 8.4 Square Frame Structure 8.5 Plate Frame Structure 8.6 Structural Seismic Checking 9 Subgrade and Foundation 9.1 Subgrade Bearing Capacity Checking 9.2 Subgrade Deformation Calculation 9.3 Foundation Design and Calculation 10 Construction Requirements 10.1 General Requirements 10.2 Construction of Drum Type Tower Foundation 10.3 Construction of Cylinder Type Tower Foundation 10.4 Construction of Frame-Type Tower Foundation Appendix A (Normative) Calculation for Basic Natural Vibration Period of Tower-type Equipment Appendix B (Informative) Calculation Formula for Concentrated Vertical Loads Generated on foundation Bolt on Ring Beam under the Action of Top Bending Moment MT and Calculation Formula for Bending Moment, Shear Force and Torque of Horizontal Arc Beam under the Action of Concentrated Vertical Load Appendix C (Informative) Distribution Calculation Formula for Concentrated Vertical Loads Generated on Foundation Bolt under the Action of Square Frame Beam Bending Moment (MT) Explanation of Wording
