A case study of distress mechanism(s) in a concrete structure foundation in the saturated zone and above the saturated zone

2021 ◽  
Author(s):  
Mengesha Beyene ◽  
Richard Meininger
Keyword(s):  
Concrete Structure ◽  
Saturated Zone

scholarly journals Test of PSHA Map of China – A Case Study of Sichuan Region

2021 ◽  
Author(s):  
Xiaxin Tao ◽  
Zhengru Tao ◽  
Liyuan Wang ◽  
Ming Zhang
Keyword(s):  
Concrete Structure ◽  
Economic Loss ◽  
Frame Structure ◽  
Intensity Difference ◽  
Injury Reduction ◽  
The Common ◽  
Serious Injury ◽  
Sichuan Region ◽  
Test Result

The PSHA map must be tested, since hypothesis testing is the heart of a scientific method, and it is inappropriate to adopt the map as the basis of seismic fortification in whole country without any test. Two paths of testing are suggested in this paper. The test result by counting up positive intensity difference shows that up to 2015 the percentages of total underestimation areas on 1990 and 2001 maps of China are equivalences of 5.6% and 6.0% in 50 years, both less than the exceeding probability 10% adopted in the map compiling procedure. The result of a case study of the common buildings with brick-concrete structure and frame structure in Sichuan region by evaluating the benefit of seismic fortification according to the two maps shows that the PSHA maps contribute benefits as economic loss reduction 67.9 and 79.7 billion RMB, death reduction 19439 and 17504 persons, and serious injury reduction 42632 and 37700 persons respectively during 2008 great Wenchuan Earthquake.

scholarly journals Proposal of a method for service life prediction of a concrete structure: a case study

2020 ◽  
Vol 73 (3) ◽  
pp. 311-317
Author(s):  
André Barros Bolzani Petersen ◽  
Felipe Mattos Albertini ◽  
Bernardo Fonseca Tutikian
Keyword(s):  
Service Life ◽  
Concrete Structure ◽  
Life Prediction ◽  
Service Life Prediction

The impact of uneven temperature distribution on stability of concrete structures using data analysis and numerical approach

2020 ◽  
pp. 136943322095061
Author(s):  
Xuyan Tan ◽  
Weizhong Chen ◽  
Luyu Wang ◽  
Jianping Yang
Keyword(s):  
Temperature Distribution ◽  
Tensile Stress ◽  
Statistical Model ◽  
Temperature Variation ◽  
Concrete Structure ◽  
Shield Tunnel ◽  
Structure Stability ◽  
Mechanical Behaviors ◽  
Analytical Results

Temperature variation is an essential factor to influence the stability of concrete structure. In contrast to the uniform distribution of temperature in most existing approaches, this paper aims to study the natural temperature distribution in concrete structure and analyze its impact on structural mechanical behaviors in field. As a case study, an underwater shield tunnel is investigated using the presented method. Firstly, temperature sensors are installed in different positions to achieve real-time monitoring in field. Then, a statistical model is derived by monitoring data to describe temperature variation. As a core component of the approach, the devised statistical model is integrated into our program to determine the external loads imposed on model. Finally, the mechanical behaviors of concrete structure are discussed under uneven temperature distribution. Analytical results indicated the magnitudes of temperature distribution is related to different positions of structure, in which the significant distinctions can be observed at upper and lower of tunnel as well as the inside and outside structures. Also, the tensile stress of tunnel lining increases with the rise of temperature, for instance, in this case study per temperature rising would lead to an increment 25.3 KPa of tensile stress. As a promising application, the analytical results provide an assessment of concrete structure stability.

Durability diagnosis of a concrete structure in a tidal zone by combining NDT methods: Laboratory tests and case study

2012 ◽  
Vol 37 ◽  
pp. 893-903 ◽  
Author(s):  
Géraldine Villain ◽  
Zoubir Mehdi Sbartaï ◽  
Xavier Dérobert ◽  
Vincent Garnier ◽  
Jean-Paul Balayssac
Keyword(s):  
Concrete Structure ◽  
Laboratory Tests ◽  
Tidal Zone

Protection of interrupted concrete structure to prevent degradation: a case study

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
E. Possan ◽  
C. Berwanger ◽  
E. Rigo ◽  
E. F. Felix ◽  
C. A. C. Brant
Keyword(s):  
Concrete Structure

The Application of PC Technology in Public Buildings: A Case Study of Security Center in "Twelfth National Athletics"

2013 ◽  
Vol 805-806 ◽  
pp. 1598-1602
Author(s):  
Wei Gu ◽  
Yu Zhao ◽  
Dong Xu Zhang
Keyword(s):  
Concrete Structure ◽  
Specific Problem ◽  
Precast Concrete ◽  
Water System ◽  
Management Problem ◽  
Construction Process ◽  
Running Water ◽  
Public Building ◽  
The Social

Precast Concrete Structure Technology has been used in residential industry, but still less in public building areas. The project uses the PC technology, especially the production of the constructional element in the factory, and the installation of the construction in the site and the progress of the operation in the Social field, running water system of the formation of ordered factory jobs. There will be many advantages, including of improving the quality, the efficiency, and the life of construction, at the same time, reducing the consumption of the energy, and interference. In the actual construction process there is a lot of specific problem, such as the connection between PC and RC, and the management problem of PC construction and so on. It will be summarized that the shortage about the application of PC technology in public building at present and explore the application of PC technology in public building areas for promoting the development of technology in the future.

scholarly journals Post Peak Behavior of Carbonated Concrete Structure - A Case Study of the Former Shime Mining Office Vertical Derrick in Japan

2020 ◽  
Author(s):  
K. Su ◽  
K. Imamoto ◽  
T. Noguchi ◽  
M. Kanematsu ◽  
H. Hamasaki ◽  
...  
Keyword(s):  
Concrete Structure
Sign in / Sign up

Export Citation Format

Share Document