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;
k) Exhaust funnel and flare tower frame;
l) Counter-flow mechanical draught cooling tower and cross-flow mechanical draught cooling tower;
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
