scholarly journals Comparing Performance of Cross-Laminated Timber and Reinforced Concrete Walls

2021 ◽  
Vol 26 (3) ◽  
pp. 28-43
Author(s):  
A. Bahrami ◽  
O. Nexén ◽  
J. Jonsson
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Cost Effective ◽  
Concrete Walls ◽  
Cross Laminated Timber ◽  
Analysis And Design ◽  
Lower Weight ◽  
Reinforced Concrete Walls ◽  
Design Software ◽  
The City

Abstract The purpose of this research is to specify the differences between the performance of cross-laminated timber (CLT) and reinforced concrete (RC) walls. The study is done by using the finite element structural analysis and design software, StruSoft FEM-Design, in order to model, analyse and design a reference building located in the city of Gävle in Sweden. The building is firstly modelled, analysed and designed using RC walls and then the RC walls are replaced with CLT walls. In both buildings, other load-bearing elements such as slabs, beams and columns are made of RC while the roof beams are made of glulam. It is found that employing RC has advantages, especially regarding thickness. The results show that the CLT walls require larger dimensions than their RC counterparts. Meanwhile, it is demonstrated that the slabs, beams and columns made of RC in the building having the CLT walls require more reinforcement or larger thickness than the case of walls made of RC. Moreover, the total weight of the building having the CLT walls is 74% of the building having the RC walls. The lower weight of the building having the CLT walls has great advantages such as having lighter foundation and being cost-effective and also beneficial for the environment.

The Mexico Earthquake of September 19, 1985—Case Studies of Seismic Strengthening for Two Buildings in Mexico City

1989 ◽  
Vol 5 (1) ◽  
pp. 153-174 ◽  
Author(s):  
D. A. Foutch ◽  
K. D. Hjelmstad ◽  
E. Del Valle Calderón ◽  
E. Figueroa Gutiérrez ◽  
R. E. Downs
Keyword(s):  
Reinforced Concrete ◽  
Mexico City ◽  
Reinforced Concrete Frame ◽  
Concrete Walls ◽  
Concrete Frame ◽  
Reinforced Concrete Walls ◽  
Steel Bracing ◽  
Geotechnical Investigations ◽  
Mexico Earthquake ◽  
The City

The earthquake that shook Mexico City on 19 September 1985, destroyed several hundred buildings and took thousands of lives. Two buildings located in the most highly damaged part of the city experienced strong shaking, but suffered only slight damage. These reinforced concrete frame buildings had been retrofit with steel bracing systems and infill reinforced concrete walls prior to the earthquake. Forced vibration tests, analytical studies and geotechnical investigations for each building have been conducted. The results indicate that the steel bracing systems strengthened the buildings and stiffened them, moving their natural periods away from the 2.0-second predominant ground period in that part of the city. Implications for the design of strengthening systems have been determined.

State-of-the-art in nonlinear finite element modeling of isolated planar reinforced concrete walls

2019 ◽  
Vol 194 ◽  
pp. 46-65 ◽  
Author(s):  
Kristijan Kolozvari ◽  
Lauren Biscombe ◽  
Farhad Dashti ◽  
Rajesh P. Dhakal ◽  
Aysegul Gogus ◽  
...  
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Finite Element Modeling ◽  
State Of The Art ◽  
Nonlinear Finite Element ◽  
Concrete Walls ◽  
Element Modeling ◽  
Reinforced Concrete Walls

scholarly journals Numerical analysis of construction of drainage system for precipitation waters

2013 ◽  
Vol 12 (3) ◽  
pp. 091-096
Author(s):  
Piotr Gąska
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Quantitative Analysis ◽  
Numerical Model ◽  
Lateral Pressure ◽  
Drainage System ◽  
Vertical Direction ◽  
Concrete Walls ◽  
Reinforced Concrete Walls

Progressive implements which make possible advanced geotechnical analysis, induced the author to verify previously accepted engineering solutions of construction of rain waters drainage system with the use of reinforced concrete walls and horizontal geogrids. The quantitative analysis of stress distribution in ground medium around the drainage system was performed in numerical model with the use of finite element method . This analysis confirmed previous – intuitive and qualitative - assumptions of the technical design. The application of reinforced concrete walls, transmission of ground lateral pressure to the soil below and the above drainage system, result in twofold reduction of horizontal components of ground stresses in area between reinforced walls and the drainage. The usage of two layers of geogrid over the drainage system  made possible strain relief of this system (in the middle, the most sensitive zone) in vertical direction of about 75%.

Impact of High Velocity Objects Into Concrete Structures: Methodology and Application

2003 ◽  
Author(s):  
R. J. James ◽  
L. Zhang ◽  
J. Y. R. Rashid
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
High Velocity ◽  
Nuclear Power ◽  
Power Plants ◽  
Highway Bridges ◽  
Concrete Walls ◽  
Explicit Finite Element ◽  
Reinforced Concrete Walls ◽  
Close Proximity

Lifeline safety structures, such as, for example, concrete dams, nuclear power plants, and highway bridges, are designed to high levels of safety using traditionally conservative methods. Events of recent years, however, have raised public concerns about the degree of vulnerability of these structures to deliberate attacks involving large-airplane crash or close-proximity blast loading. This paper presents recent development in the state of the art of finite-element-based constitutive modeling and computational methodology of reinforced concrete with emphasis on severe damage modeling and failure evaluation. Verification and validation of the developed methodology is illustrated using high-velocity impact tests conducted in the U.S. and Japan. This involves explicit finite element computations for high velocity rigid missiles impacting reinforced concrete walls. Application of the methodology to nuclear fuel facilities is discussed.

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