1.0.1 This specification is formulated with a view to ensuring the design and construction quality of concrete small-sized hollow block masonry buildings, adapting to local conditions, using local materials, and achieving advanced technology, economic feasibility, safety, usability and reliable quality.
1.0.2 This specification is applicable to the design, construction and quality acceptance of the concrete small-sized hollow masonry wall materials and building construction in the non-seismic areas and Intensity 6 to Intensity 9 seismic fortification intensity areas.
1.0.3 Besides this specification, the design, construction and quality acceptance of concrete small-sized hollow block masonry building shall also comply with those in the relevant current national standards.
1 General Provisions 1
2 Terms and Symbols 2
2.1 Terms 2
2.2 Symbols 3
3 Calculation Index of Structural Design for Material and Masonry 6
3.1 Strength Grade of Material 6
3.2 Calculation Index of Structural Design for Masonry 6
4 Architectural Design and Energy Efficiency Design 11
4.1 Architectural Design 11
4.2 Energy Efficiency Design 13
5 Static Design of Small Block Masonry Structure 17
5.1 Basic Requirements of Design 17
5.2 Carrying Capacity Calculation for Compressive Members 18
5.3 Carrying Capacity Calculation for Local Compressive Members 20
5.4 Carrying Capacity Calculation for Axial Tensile Members 24
5.5 Carrying Capacity Calculation for Flexural Members 24
5.6 Carrying Capacity Calculation for Shearing Members 24
5.7 Allowable Ratio of Height to Sectional Thickness of Wall or Column 25
5.8 General Details 27
5.9 Crack Resisting Details of Masonry Wall 28
5.10 Details of Frame-Infilled Wall Structures 31
5.11 Details for Cavity Wall Filled with Insulation 32
5.12 Ring Beam, Lintel, Core Colum and Structural Column 33
6 Static Design of Reinforced Masonry 36
6.1 Basic Requirements of Design 36
6.2 Carrying Capacity Calculation for Compressive Members 36
6.3 Carrying Capacity Calculation for Shearing Members 40
6.4 Details Requirements 41
7 Aseismic Design 46
7.1 General Requirements 46
7.2 Earthquake Action and Seismic Checking for Structures 53
7.3 Details of Seismic Design 58
8 Construction 75
8.1 Material Requirements 75
8.2 Mortar 76
8.3 Construction Preparation 77
8.4 Basic Requirements for Wall Construction 79
8.5 Construction of Insulation Wall 83
8.6 Construction of Core Column 86
8.7 Constructional of Structural Column 87
8.8 Construction of Infilled Wall 87
8.9 Construction of Single-storey Building with Non-load Carrying Wall 90
8.10 Construction of Reinforced Masonry Structure 91
8.11 Installation of Line Pipe and Facility 92
8.12 Installation of Door and Window Frame 93
8.13 Construction of Energy Efficiency Engineering 94
8.14 Construction during Rain and Winter Season 101
9 Acceptance of Works 104
9.1 General Requirements 104
9.2 Small Block Masonry Engineering 105
9.3 Small Block Reinforced Masonry Engineering 107
9.4 Masonry Engineering for Infilled Wall of Small Block 109
Appendix A The Compressive Strength Design Value for Concrete Blocks with Single Row of Holes Poured with Concrete 112
Appendix B Calculation Method of Inertia Index of Small Block Masonry 116
Appendix C Calculation Method of Thermal Resistance of Sandwich Block Masonry 118
Appendix D The Thermal Resistance and Inertia Index of Small Lightweight Aggregate Small Block Masonry and Composite Insulation Small Block Masonry 119
Appendix E Calculation Method of Heat Transfer Coefficient and Inertia Index of Wall 120
Appendix F Influence Coefficient φ 123
Appendix G Testing Determination of Bonded Rebars Anchorage Force for Infilled Wall Masonry 126
Explanation of Wording in This Specification 127
List of Quoted Standards 128
