Design of composite beams with large web openings, Contents:
INTRODUCTION
1.1 Background
1.2 Previous design guidance
1.3 Scope of this publication
1.4 Design standards
1.5 Material strengths
1.6 Shear connection
1.7 Effective slab width
1.8 Partial shear connection
1.9 Transverse reinforcement
DESIGN PRINCIPLES FOR WEB OPENINGS
2.1 General
2.2 Design of unperforated composite beams
2.3 Design of beams with large openings
2.4 Design model
2.5 Assumptions in the design model
2.6 General guidance on positioning of openings
2.7 Design of non-composite beams with large openings
DESIGN RESISTANCE OF BEAMS WITH UNSTIFFENED OPENINGS
3.1 Design effects at openings
3.2 Bending resistance at the opening
3.3 Shear resistance
3.4 Bending resistance of Tee-sections
3.5 Web-posts between openings
3.6 Shear buckling adjacent to an isolated circular opening
LIMITING SHEAR RESISTANCE FOR BEAMS WITH CLOSELY SPACED OPENINGS
4.1 Resistance governed by web-post bending
4.2 Resistance governed by web-post buckling
4.3 Verification of shear resistance
4.4 Eccentricity effects for elongated openings
DESIGN RESISTANCE OF BEAMS WITH STIFFENED OPENINGS
5.1 Geometric limitations
5.2 Beams with horizontal stiffeners
5.3 Vertical stiffeners
5.4 Ring stiffeners
BEHAVIOUR AT SERVICEABILITY LIMIT STATE
6.1 Calculation of additional deflections
6.2 Approximate method
SPECIAL CASES
7.1 Highly asymmetric openings
7.2 End-posts
7.3 Notched beams
Design of composite beams with large web openings
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