Efficiency concept for upgrading the lateral stiffness of reinforced concrete wall systems. Nollet, M. & Chaallal, O. Structural Design of Tall Buildings, 11(1):15 - 34, 2002. Coupling systems;
Efficiency concept for upgrading the lateral stiffness of reinforced concrete wall systems [link]Paper  abstract   bibtex   
This paper presents a new concept, the efficiency concept, for upgrading the lateral stiffness of reinforced concrete walls connected by a coupling system that is partially or not effective in flexure. The efficiency concept is based on the capacity of the connecting medium to reduce the overall drift. By definition a system of uncoupled walls has an efficiency of 0, whereas a system of fully coupled walls has a maximum efficiency of 1. Based on this concept, it is proposed to upgrade the wall systems with adequate beams, which are capable of transferring the additional forces between the walls. The stiffness, the number and the location of these added beams are optimized using the efficiency concept by which the overall drift is controlled. Results of the study are presented as easy-to-use charts for the practising engineer. These charts allow a rapid choice of an efficient structure, which can then be refined using any discrete structural analysis method. The method is efficient, convenient and cost-effective as it minimizes the number of coupling beams to be added to the system to achieve a targeted drift. It also maximizes the clearance along corridors, particularly in buildings with low interstorey height. A practical example, following a step-by-step procedure, is provided to demonstrate the applicability of the concept. Copyright © 2002 John Wiley & Sons, Ltd.
@article{2002216955755 ,
language = {English},
copyright = {Compilation and indexing terms, Copyright 2023 Elsevier Inc.},
copyright = {Compendex},
title = {Efficiency concept for upgrading the lateral stiffness of reinforced concrete wall systems},
journal = {Structural Design of Tall Buildings},
author = {Nollet, M.-J. and Chaallal, O.},
volume = {11},
number = {1},
year = {2002},
pages = {15 - 34},
issn = {10628002},
abstract = {This paper presents a new concept, the efficiency concept, for upgrading the lateral stiffness of reinforced concrete walls connected by a coupling system that is partially or not effective in flexure. The efficiency concept is based on the capacity of the connecting medium to reduce the overall drift. By definition a system of uncoupled walls has an efficiency of 0, whereas a system of fully coupled walls has a maximum efficiency of 1. Based on this concept, it is proposed to upgrade the wall systems with adequate beams, which are capable of transferring the additional forces between the walls. The stiffness, the number and the location of these added beams are optimized using the efficiency concept by which the overall drift is controlled. Results of the study are presented as easy-to-use charts for the practising engineer. These charts allow a rapid choice of an efficient structure, which can then be refined using any discrete structural analysis method. The method is efficient, convenient and cost-effective as it minimizes the number of coupling beams to be added to the system to achieve a targeted drift. It also maximizes the clearance along corridors, particularly in buildings with low interstorey height. A practical example, following a step-by-step procedure, is provided to demonstrate the applicability of the concept. Copyright © 2002 John Wiley & Sons, Ltd.},
key = {Walls (structural partitions)},
keywords = {Concrete beams and girders;Optimization;Reinforced concrete;Stiffness;Structural analysis;Structural loads;},
note = {Coupling systems;},
URL = {http://dx.doi.org/10.1002/tal.185},
}

Downloads: 0