Effect of weak foundation on the seismic response of core wall type buildings

1992 ◽  
Vol 19 (3) ◽  
pp. 530-539 ◽  
Author(s):  
A. Filiatrault ◽  
D. L. Anderson ◽  
R. H. DeVall
Keyword(s):  
Reinforced Concrete ◽  
Great Influence ◽  
Nonlinear Dynamic Analysis ◽  
Nonlinear Behaviour ◽  
Seismic Zone ◽  
Shear Forces ◽  
Reinforced Concrete Building ◽  
The Core ◽  
Concrete Building ◽  
Rocking Foundation

This paper investigates the seismic behaviour of a typical wall-type reinforced concrete building with a footing that is unable to develop the flexural wall capacity. Nonlinear dynamic analysis is used to determine the response of the structure under historical earthquakes representing design conditions for a seismic zone 4 in Canada. The analysis incorporates the nonlinear behaviour of the core, footing and soil, and also the uplift of the footing from the soil. Three different structural models are considered: (i) the core on a rigid foundation, (ii) the core on a flexible (rocking) foundation, and (iii) the core on a flexible foundation with the two lower levels connected to a parking structure. The results show that the weak footing does not have a great influence on the performance of the building considered. The parking structure and the rocking foundation cause a reversal and increase of the shear forces in the lower storeys. Also, the reduction of bending moments due to the core yielding is not proportional to the reduction of shear forces. This result suggests a need for different force modification factors for shear and bending. Key words: dynamics, earthquakes, reinforced concrete, building codes, foundations, footings.

Nonlinear dynamic analysis of reinforced concrete building structures

1980 ◽  
Vol 7 (2) ◽  
pp. 333-344 ◽  
Author(s):  
Shunsuke Otani
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Analysis ◽  
Nonlinear Dynamic ◽  
Nonlinear Dynamic Analysis ◽  
Analytical Models ◽  
Building Structures ◽  
Reinforced Concrete Building ◽  
Building Model ◽  
Concrete Members ◽  
Concrete Building

This state-of-the-art paper discusses nonlinear dynamic analysis of reinforced concrete building structures. Nonlinear analysis of a reinforced concrete building is difficult (a) because inelastic deformation is not confined at critical sections, but spreads throughout the structure; and (b) because stiffness of the reinforced concrete is dependent on a strain history.The paper reviews the behaviour of reinforced concrete members and their subassemblies observed during laboratory tests. Then different hysteresis and analytical models of reinforced concrete members are reviewed, and their application to the simulation of building model behaviour is discussed.

scholarly journals Does the design according to the seismic zone affect the environment and the manufacturing cost of a 5-storey R/C building with a conventional plan?

2021 ◽  
Vol 899 (1) ◽  
pp. 012032
Author(s):  
Theodoros Chrysanidis ◽  
Athina Gkigki ◽  
Grigorios Papageorgiou ◽  
Nikolaos Alamanis
Keyword(s):  
Reinforced Concrete ◽  
Cross Sections ◽  
Manufacturing Cost ◽  
Seismic Zone ◽  
Structural Members ◽  
Reinforced Concrete Building ◽  
Reinforced Concrete Slabs ◽  
Concrete Building ◽  
The Cost ◽  
Bearing Structure

Abstract The main scope of the present research is the analysis, dimensioning and estimation of the cost of a five-storey reinforced concrete building, which is similarly constructed in three different seismic hazard zones (ZI, ZII, ZIII). The ground plan of the building is a conventional floor plan with solid reinforced concrete slabs. The cross-sections of the structural members remain stable, except for the columns whose cross-sections are reduced in height. The aim of the present study is to analyze how the cost of manufacturing the load-bearing structure of a reinforced concrete building is affected by the seismic risk of the area, if that influence is significant and in what extent. Moreover, along with the construction cost, the possible influence to the environment is studied, too.

Soft storey effects on plastic hinge propagation of moment resisting reinforced concrete building subjected to Ranau earthquake

2017 ◽  
Author(s):  
Chee Ghuan Tan ◽  
Wei Ting Chia ◽  
Taksiah A. Majid ◽  
Fadzli Mohamed Nazri ◽  
Mohd Irwan Adiyanto
Keyword(s):  
Reinforced Concrete ◽  
Plastic Hinge ◽  
Reinforced Concrete Building ◽  
Soft Storey ◽  
Concrete Building ◽  
Moment Resisting
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