by In order to implement the Guiding Opinions of the General Office of the State Council on Vigorously Developing Fabricated Buildings (GBF [2016] No.
71), carry out green building creation actions, and further promote the development of steel structure housing, the Ministry of Housing and Urban-Rural Development has organized the preparation of the Guidelines for the Dimensions of Main Components of Steel Structure Housing, which is hereby issued.
Full text of the appendix: The contents of the Guide to the Dimensions of Main Members of Steel Structure Residential Buildings are divided into six chapters and three appendices, including: 1.
Overview; 2.
Beam member size; 3.
Column component size; 4.
Dimensions of supporting members; 5.
Dimensions of low-rise cold-formed thin-walled steel members; 6.
Connection node size.
1 Overview 1.1 Preparation purpose and scope of application 1.1.1 In order to implement the national technical and economic policies, apply the standardization concept throughout the whole process of steel structure residential design, production, construction, operation and maintenance, guide the section steel production enterprises and design units, production enterprises to coordinate and unify the common section shape, size and length of components, promote the standardization of components, improve efficiency, save costs, and improve the overall construction level of steel structure residential buildings, Develop this guide.
1.1.2 This guide is applicable to the factory production and design selection of hot-rolled section steel members, cold-formed section steel members and their composite components for steel structure residential buildings, including the provisions on the coding rules, common lengths, common section forms and sizes, connection nodes, etc.
of components.
1.1.3 This guide is applicable to beams, columns, supports and members in low-rise cold-formed thin-walled steel structures in steel structure residential buildings.
1.2 Basic provisions 1.2.1 The common section form, size and length of steel structure residential components shall be determined according to the use frequency and the principles of economy and applicability, and shall comply with the relevant provisions of the current national standard “Building Modular Coordination Standard” GB/T50002.
1.2.2 The determination of the common section form, size and length of the steel structure residential components shall be coordinated with the building functional space, structural system, peripheral protection system, interior decoration system, equipment and pipeline system, as well as with the component production, transportation, construction and installation.
1.2.3 The common section form, size and length of the members provided in this guide should be selected for the members of the steel structure residence.
When selecting the member sections listed in this guide, the designer should also comply with the provisions of the current national standards.
1.2.4 The selection of steel in this guide shall comply with the current national standards Carbon Structural Steel GB/T700, Low Alloy High Strength Structural Steel GB/T1591, Continuous Hot Dip Galvanized and Zinc Alloy Coated Steel Sheet and Strip GB/T2518, etc; It shall also comply with the provisions of the current national standards: Code for Seismic Design of Buildings (GB50011), Standard for Design of Steel Structures (GB50017), Technical Standard for Fabricated Steel Structures (GB/T51232), Technical Code for Steel Structures of High-rise Civil Buildings (JGJ99), Technical Code for Low-rise Cold-formed Thin-walled Steel Buildings (JGJ227), etc.
1.3 Member and node type 1.3.1 Member type 1 beam can be divided into frame beam and non-frame beam.
The cross section can be hot-rolled H-shaped steel.
2 The frame column in the column can be hot-rolled H-shaped steel, square (rectangular) steel pipe and composite special-shaped column.
3 The support can be hot-rolled H-shaped steel and square (rectangular) steel pipe.
1.3.2 Node type 1 beam-column connection node is the connection node between frame beam and frame column, usually rigid connection node or hinge connection node.
2 Beam-beam connection node is the connection node between non-frame beam and frame beam, usually rigid connection node or hinge connection node.
3 Support connection node is the connection node between support and beam-column node and frame beam, usually rigid connection node or hinge connection node.
4.
The component splicing joints include the column to column splicing joints and the beam to beam splicing joints.
1.4 Member coding rule 1: steel frame beam coding rule: GKL – section form – section size – member length.
Where: GKL – steel frame beam; Section form – H (hot rolled H shape), the form code shall be subject to this guide; Section size – use “height (H) × Width × Web thickness × Flange thickness “means; Component length – determined by the length of component axis, in mm.
Example: GKL-H400 × two hundred × eight × 13-6000。 2.
Non-frame steel beam coding rules: GL – section form – section size – member length.
Among them, GL is a non-frame steel beam, that is, a steel beam whose ends are not connected with steel frame columns; Section form – H (hot rolled H shape), the form code shall be subject to this guide; Section size – use “height (H) × Width × Web thickness () × Flange thickness () “indicates; The length of the component is determined by the length of the axis in mm.
Example: GL-H300 × one hundred and fifty × six × 9-3000。 3.
Coding rules for steel frame columns: GKZ – section form – section size – member length.
Where: GKZ – steel frame column; Section form – H (hot rolled H-shaped), mouth (square (rectangular) tube), and the form code is subject to this guide; Section size – “H” for H shape × Width × Web thickness () × Flange thickness () “indicates; Height for square × Thickness (t) “means; Height for rectangle × Width × Thickness (t) “means; The component length is determined by the nominal length.
Example: GKZ-H300 × three hundred × ten × 15-9000GKZ-□300 × 10-9000GKZ-□300 × two hundred × 12-9000。 4 Coding rules for non-frame steel columns: GZ – section form – section size – member length.
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