1.1 This Code specifies basic requirements for earthquake effect, iseismic calculation and iseismic measures of petrochemical structures.
This Code is applicable to iseismic design of structures for petrochemical in regions with iseismic fortification intensity of 6°~9° (hereinafter referred to as "6°~9°).
1.2 Petrochemical structures include:
a) Frame-bent structure composed of reinforced concrete framework, framework-iseismic wall structure and bent frame;
b) Steel frame-bent structure composed of load bearing steel framework, steel bent frame, steel framework and steel bent frame;
c) Tower-shape equipment foundation and foundation of vertical vessel with total aground height of greater than or equal to 10m;
d) Frame foundation of block form, coaxial type reactor and in catalytic cracking units;
e) Atmospheric vertical steel cylindrical tank foundation;
f) Steel frame supported steel spherical tank foundation;
g) Horizontal heat exchange equipment and horizontal vessel foundation;
h) Tubular heater converter and vertical heater foundation;
i) Ethylene cracking furnace frame and foundation;
j) Independent type pipe frame, spanning pipe frame, longitudinal beam-pipe frame and special tube frame;
m) Ground, underground and semi-underground type reinforced concrete pools;
n) Round or rectangular cast-in-place concrete bin and urea prilling tower for storing materials bulk materials;
o) Free-standing chimney, reinforced concrete chimney and landing single pipe steel chimney.
1.3 This Code is not applicable to structures iseismic design for petrochemical in regions with iseismic fortification intensity of larger than neither 9°, nor it is applicable to be used as strained structure with itself and other large-scale pipe frame spanning rivers.
Foreword I 1 Scope 2 Normative references 3 Major symbols 3.1 Earthquake effect and load and action (load) effect 3.2 Material property, structure member resisting force and other physical quantities 3.3 Geometric parameters 3.4 Factors 4 General provision 5 Basic requirements for iseismic design 5.1 General requirement 5.2 Earthquake effect 5.3 Site effect, groundwork and foundation 5.4 Iseismic structural system 5.5 Structural analysis 5.6 Structured materials and construction 5.7 Anchor bolt 5.8 Non-structural members 6 Site, groundwork and foundation 6.1 Site 6.2 Natural groundwork and foundation 6.3 Liquefied soil groundwork 6.4 Seismic settlement of soft soil groundwork 6.5 Pile foundation 7 Iseismic checking for the earthquake effect and structures 7.1 General requirement 7.2 Calculation for horizontal earthquake effect 7.3 Vertical earthquake effect calculation 7.4 Sectional iseismic checking 7.5 Checking for iseismic deformation 8 Frame-bent structure of reinforced concrete 8.1 General requirements 8.2 Iseismic calculation 8.3 Structural measures 9 Steel frame-bent structure 9.1 General requirement 9.2 Iseismic calculation 9.3 Basic construction measures 9.4 Iseismic construction measures for steel framework support structure 10 Tower type equipment foundation 10.1 General requirement 10.2 Iseismic calculation 10.3 Construction measures 11 Reactor and regenerator framework 11.1 General requirement 11.2 Iseismic calculation 11.3 Construction measures 12 Vertical cylindrical tank foundation at atmospheric pressure 12.1 General requirement 12.2 Iseismic calculation 12.3 Construction measures 13 Spherical tank foundation 13.1 General requirement 13.2 Iseismic calculation 13.3 Construction measures 14 Horizontal heat exchange equipment and horizontal vessel foundation 14.1 General requirement 14.2 Iseismic calculation 14.3 Construction measures 15 Tubular furnace foundation 15.1 General requirement 15.2 Iseismic calculation 15.3 Construction measures 16 Frame and foundation of cracking furnace 16.1 General requirement 16.2 Iseismic calculation 16.3 Construction measures 17 Pipe frame 17.1 General requirement 17.2 Iseismic calculation 17.3 Construction measures 18 Exhaust funnel and flare tower frame 18.1 General requirement 18.2 Iseismic calculation 18.3 Construction measures 19 Cooling tower structure 19.1 General requirement 19.2 Iseismic calculation 19.3 Construction measures 20 Pools 20.1 General requirement 20.2 Iseismic calculation 20.3 Construction measures 21 Reinforced concrete bin and prilling tower 21.1 General requirement 21.2 Iseismic calculation 21.3 Construction measures 22 Chimney 22.1 General requirement 22.2 Iseismic calculation 22.3 Construction measures Annex A (Normative) Conditions for Frame-bent Structure Calculated as Plane and Regulation Factor for Earthquake Effect Annex B (Normative) Checking for Sectional Earthquake Resistance in Node Core of the Framework Annex C (Normative) Sideways Rigidity for Supporting Structure of Column-supported Square Bin with Beam Explanation of Wording in This Standard
