International research framework and priorities for reinforced concrete wall buildings

Richard S Henry,Kenneth J Elwood,John W Wallace

doi:10.5459/bnzsee.50.4.608-615

Abstract

Recent earthquakes have highlighted discrepancies between the intended and observed performance of RC walls and significant research is in progress to improve the seismic performance of RC wall buildings. An international group of researchers and practitioners developed a research framework in order to conduct a project mapping and prioritisation exercise for RC wall research. The process by which this research framework and mapping exercise were conducted is described. The framework was used to identify research priorities that would provide a basis for the direction of future research. High priority topics included, shear demands and capacities, effect of load-rate and loading history, seismic assessment of older walls, residual capacity and repairability, non-rectangular and core walls, and whole of building response.

Highlights

Reinforced concrete (RC) walls are commonly used as lateral force resisting components in a wide range of building typologies worldwide
Extensive research is in progress worldwide to understand and improve the seismic behaviour of RC walls, with many countries facing similar challenges with respect to the design of new buildings and the assessment of existing building
The objective was to provide a framework that would connect research that is being conducted by members of the International Wall Institute and identify gaps in the collective research programmes of participating nations

Summary

INTRODUCTION

Reinforced concrete (RC) walls are commonly used as lateral force resisting components in a wide range of building typologies worldwide. During a recent workshop of the International Wall Institute, a research framework and prioritisation was developed. The objective was to provide a framework that would connect research that is being conducted by members of the International Wall Institute and identify gaps in the collective research programmes of participating nations. The primary goals of the Wall Institute are to share test plans and data, improve and validate numerical models, achieve consensus on critical design issues, prepare joint reports and papers, and develop collaborative research proposals. Given the extensive amount of RC wall research underway worldwide, the institute has played a vital role in synergising the efforts of individuals, leveraging opportunities and tests on other countries, and developing amendments to design standards/codes. The first two workshops provided an opportunity to present current research from each of the participating member institutions and to formulate working groups to address certain objectives of the institute.

RC Walls

Findings

Design philosophies