CONTENTS PART 1 PROVISIONS AND COMMENTARY 0 Foreword 1 1 Scope 3 2 Terminology 4 2.1 Cross-Sectional Area of Masonry Unit 4 2.2 Grout 5 2.3 Grouted Masonry 5 2.3.1 Grouted Hollow-Unit Masonry 5 That ibrm of grouted masonry construction in which certain designated cells of hollow units are continuously filled with grout 5 2.3.2 Grouted Multi-Wythc Masonry 5 2.4 Joint Reinforcement 5 2.5 Pier. 6 2.6 Prism 6 2.7 Reinforced Masonry 6 2.8 Grouted Cavity Reinforced Masonry 6 2.9 Pocket type Reinforced Masonry 6 2.10 Quetta Bond Reinforced Masonry 6 2.11 Specified Compressivc Strength of Masonry 6 2.12 Wall Tie 7 2.13 Wythe 7 3 Materials 8 3.1 Masonry Units 8 3.2 Mortar 9 3.3 Reinforcement 9 3.4 Material Properties 9 4 DESIGN CONSIDERATIONS10 4.1 General 10 4.2 Structural Continuity10 4.3 Effective span 11 4.4 Slenderness Ratio 11 4.5 Minimum Design Dimensions 12 4.6 Eccentricity in Columns 12 5 Requirements Governing Reinforcement and Detailing 12 5.1 General 12 5.2 Steel Reinforcement- Allowable Stresses 13 5.3 Size of Reinforcement 14 5.4 Spacing of Reinforcement 14 5.5 Anchorage 14 5.6 Lap Splices 16 5.7 Curtailment of Tension Reinforcement 17 5.8 Members Subjected to Flexure and Axial Forces 18 5.9 Members Subjected to Shear 19 5.10 Reinforcement Detailing 20 6 Structural Design 21 6.1 Permissible Compressive Force 21 7 Seismic Design Requirements 24 7.1 Scope 24 7.2 Different Performance Levels of Masonry Shear Walls 25 APPENDIX A 30 APPENDIX B 36 APPENDIX C 39 PART 2 EXPLANATORY EXAMPLES