Structural Concrete - Hassoun

x
Contents
14.9 Design Requirements 501
14.10 Drainage 502
14.11 Basement Walls 513
Summary 517
References 518
Problems 518
15 Design for Torsion 523
15.1 Introduction 523
15.2 Torsional Moments in Beams 524
15.3 Torsional Stresses 525
15.4 Torsional Moment in Rectangular Sections 528
15.5 Combined Shear and Torsion 529
15.6 Torsion Theories for Concrete Members 529
15.7 Torsional Strength of Plain Concrete Members 534
15.8 Torsion in Reinforced Concrete Members (ACI Code Procedure) 534
15.9 Summary of ACI Code Procedures 542
Summary 550
References 551
Problems 552
16 Continuous Beams and Frames 555
16.1 Introduction 555
16.2 Maximum Moments in Continuous Beams 556
16.3 Building Frames 561
16.4 Portal Frames 562
16.5 General Frames 565
16.6 Design of Frame Hinges 565
16.7 Introduction to Limit Design 578
16.8 The Collapse Mechanism 580
16.9 Principles of Limit Design 582
16.10 Upper and Lower Bounds of Load Factors 582
16.11 Limit Analysis 582
16.12 Rotation of Plastic Hinges 586
16.13 Summary of Limit Design Procedure 593
16.14 Moment Redistribution of Maximum Negative or Positive Moments
in Continuous Beams 596
Summary 605
References 607
Problems 607
17 Design of Two-Way Slabs 610
17.1 Introduction 610
17.2 Types of Two-Way Slabs 610
17.3 Economical Choice of Concrete Floor Systems 614
17.4 Design Concepts 615
17.5 Column and Middle Strips 619
17.6 Minimum Slab Thickness to Control Deflection 620