Abstract

Highlights of the evolution over the past two decades of a seismic design strategy, used in New Zealand for reinforced concrete buildings, are reviewed. After a brief outline of some philosophical concepts of the capacity design methodology, the main features of its application with respect to ductile rigid jointed frames, structural walls and hybrid structural systems are sketched. Another aim of this strategy, complementary to ductility requirements, is to strive for high quality in detailing. Numerous examples are presented to illustrate how this can be achieved. A specific intent of this state of the art review is to report on features of design and detailing which are considered to have originated primarily in New Zealand.

Highlights

  • This review attempts to highlight certain features in recent developments of the structural design of reinforced concrete buildings in New Zealand. It concentrates on issues of seismic resistance as they emerged over the last two decades

  • BULLETIN OF THE NEW ZEALAND NATIONAL SOCIETY FOR EARTHQUAKE ENGINEERING, Vol 21, No 3, September 1988 specific demands arising from seismic effects

  • Design procedures currently used in New Zealand [41) rest on the premise that, provided that the appropriate detailing of the critical wall regions is assured, ductilities approaching those in ductile frames can be attained in buildings in which· earthquake resistance is assigned entirely to structural walls

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Summary

SUMMARY

Highlights of the ev_olution over the past two decades of a seismic design strategy, used in New Zealand for reinforced concrete buildings, are reviewed. After a brief outline of some philosophical concepts of the capacity design methodology, the main features of its application with respect to ductile rigid jointed frames, structural walls and hybrid structural systems are sketched. Another aim of this strategy, complementary to ductility requirements, is to strive for high quality in detailing. A specific intent of this state of the art review is to report on features of design and detailing which are considered to have originated primarily in New Zealand

INTRODUCTION
DESIGN PRINCIPLES
Moment Resisting Ductile Frames
Moment redistribution
Dynamic effects on columns
Structural Walls
Cantilever walls
Coupled structural walls
Squat walls
Hybrid Structural system
Types of hybrid systems
The behaviour of interacting frames of walls
The capacity design of hybrid systems
QUALITY IN DETAILING
Ductile Frames
Confinment in the plastic hinges in columns
Lapped splices in columns
Wall sections
X 150: 900
Coupling beams
Diagonally reinforced squat walls
INNOVATIVE SOLUTIONS
Beam-Column Joints
SECTION 1
I SECTIONAL ELEVATION
Spandrel Beams in Tube Frames
CONCLUSIONS
Findings
16 International Conference of Building
Full Text
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