Detail of SH 3076-2013

Introduction of SH 3076-2013

1 Scope This specification specifies the structural design of buildings in petrochemical industry (hereinafter referred to as buildings), including load and seismic action, calculation and design of base and foundation, structure type of buildings, as well as the calculation, design, construction and materials related to reinforced concrete and steel structure factory buildings, masonry structure and semi-underground pumping shelter. This specification is applicable to the structural design of buildings in petrochemical industry, but not to the structural design of explosion resistant buildings in petrochemical industry. 2 Normative References The following documents are indispensable for the application of this specification. For dated references, only the edition cited applies. For undated reference, the latest edition (including any amendments) applies. GB 50003 Code for design of masonry structures GB 50007-2011 Code for design of building foundation GB 50009 Load code for the design of building structures GB 50010 Code for design of concrete structures GB 50011-2010 Code for seismic design of buildings GB 50017-2003 Code for design of steel structures GB 50046 Standard for anticorrosion design of industrial constructions GB 50068 Unified standard for reliability design of building structures GB 50160 Fire prevention code of petrochemical enterprise design GB 50223 Standard for classification of seismic protection of building constructions GB 50453 Standard for classification of seismic protection of buildings and special structures in petrochemical engineering GB/T 700 Carbon structural steels GB/T 1228 High strength bolts with large hexagon head for steel structures GB/T 1229 High strength large hexagon nuts for steel structures GB/T 1230 High strength plain washers for steel structures GB/T 1231 Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures GB/T 1591 High strength low alloy structural steels GB/T 3632 Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures GB/T 5117 Carbon steel covered electrodes GB/T 5118 Low alloy steel covered electrodes GB/T 5313 Steel plates with through-thickness characteristics GB/T 5780 Hexagon head bolts - Product grade C GB/T 5782 Hexagon head bolts GB 4053 Safety requirements for fixed steel ladders and platform JC 861 Grout for concrete small hollow block SH/T 3132 Design specification for reinforced concrete tanks in petrochemical industry SH 3137 Technical specification of fire protection for steel structures in petrochemical industry SH/T 3603 Technical specification for the coating anticorrosion of steel structures in petrochemical industry 3 Major symbols For the purposes of this specification, the following major symbols apply. 3.1 Symbols of action and action effect Ftk——Standard value of friction on top of equipment support; GBK——Standard value of the permanent load of equipment and medium acting on equipment support under normal operation condition; MI-I, MII-II——Design bending moment at section I-I and section II-II of column edge respectively; Mx——Design bending moment in X-direction acting on the centroid of the foundation base; My——Design bending moment in Y-direction acting on the centroid of the foundation base; ∑M——Sum of the design value of vertical load and its eccentric moment of strip foundation under columns to the midpoint moment of foundation in the basic combination of load effect; Mm——Design bending moment of the support in the basic combination of load effects by an empirical bending moment coefficient method of inverted beam method; Mms——Design mid-span bending moment in the basic combination of load effects by an empirical bending moment coefficient method of inverted beam method; M——Design bending moment at the checking section when checking the hoisting strength of prefabricated reinforced concrete columns; F——Design value of vertical load acting on the centroid of the foundation top in the basic combination of load effects; ∑F——Design value of the resultant vertical force in the strip foundation under column in the basic combination of load effects; pkmax, pkmin——Maximum pressure and minimum pressure at the edge of foundation bottom in the standard combination of load effects; pI, pII——Design value of the maximum net reaction force at the edge of foundation bottom in the basic combination of load effects; pjmax, pjmin——Design value of the maximum and minimum net reaction force at the foundation bottom in the basic combination of load effects; p——Design value of uniformly distributed net reaction force at the foundation bottom in the basic combination of load effects; 3.2 Material property np——Stiffness ratio between platform column and factory building column; ∑EpJp——Section stiffness of all platform columns corresponding to the same row of factory building columns; ∑ExJx——Section stiffness of all factory building columns in a row; E——Elastic modulus of masonry; I——Inertia moment of masonry transverse wall. 3.3 Geometric parameters A——Short edge width of the foundation bottom; AS——Area of tensile bar in checking section; B——Long edge width of the foundation bottom; a, b——Dimension of the short side and the long side of a column respectively; Cx, Cy——Distance between the action point of vertical load and the nearest edge of foundation in X-axis and Y-axis respectively; ex, ey——Eccentricity value of the axial force of the foundation on the long and short sides respectively; h——Height of column section; h0——Effective height of the cross section of bending moment action plane; H——Column height; H1——Upper section height of single-stepped variable-section column; H2——Lower section height of single-stepped variable-section column; H0——Calculated length of the column with equal section in the bent plane of the single-story steel structure factory building; H01——Calculated length of the upper section of single-stepped column in the bent plane of the single-story steel structure factory building; H02——Calculated length of the lower section of single-stepped column in the bent plane of the single-story steel structure factory building; Hx——Distance from the top surface of foundation to the lower point of connection between roof truss or wind-resistant truss and column; Hy——Maximum distance between two points in the column width direction. Except the connection point between the column and the roof truss and foundation, the wall beam connected with anchor bars and the wallboard rigidly connected with the column can be regarded as fulcrums; L——Length of foundation beam and the distance between the centers of support rod nodes; I——Average value of calculated span between adjacent columns in empirical moment coefficient method of inverted beam method. 3.4 Others μ——Effective length ratio of column with equal section of single-story steel structure factory building; μ1, μ2——Effective length ratio of upper section and lower section of single-stepped column of the single-story steel structure factory building; ∆1——Horizontal displacement of the column top when unit horizontal force acts on the top of the column with the top surface of the high cup-type foundation as the fixed end; ∆2——Horizontal displacement of the column top when unit horizontal force acts on the top of the column with the bottom of the short column as the fixed end.

Contents of SH 3076-2013

Foreword i 1 Scope 2 Normative References 3 Major symbols 3.1 Smbols of action and action effect 3.2 Material property 3.3 Geometric parameters 3.4 Others 4 Basic requirements 5 Load 5.1 General requirements 5.2 Floor live load 5.3 Roof load 5.4 Dynamic load 5.5 Other loads and temperature effect 6 Base and foundation 6.1 General requirements 6.2 Foundation type 6.3 Calculation of foundation 6.4 Foundation structure 7 Structure type 7.1 Principle of structure type 7.2 Structure type 8 Single-story factory building with reinforced concrete column 8.1 General requirements 8.2 Essentials in calculation 8.3 Column 8.4 Bracing system 8.5 Roof structure 8.6 Crane beam 8.7 Envelop structure and others 9 Multi-story reinforced concrete factory building 9.1 General requirements 9.2 Internal force analysis of frame structure 10 Single-story steel structures factory building 10.1 General requirements 10.2 Steel and connecting materials 10.3 Essentials in calculation 10.4 Column 10.5 Bracing system 10.6 Roof structure 10.7 Crane beam 10.8 Envelope structure 10.9 Fire prevention and corrosion prevention 11 Masonry structure 11.1 General requirements 11.2 Material classification and strength grade of masonry structure 11.3 Calculation requirements 11.4 Constructional requirements 12 Semi-underground pumping shelter 12.1 General requirements 12.2 Calculation requirements 12.3 Constructional requirements Annex A (Normative) Dynamic coefficient μ Annex B (Informative) Sectional dimension of common column Explanation of wording in this specification