STUDY ON RETROFIT EFFECTS FOR HORIZONTAL PLANE OF TRADITIONAL WOODEN HOUSES BASED ON FULL-SCALE TEST

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Mitsuhiro Miyamoto ◽  
Haruka Okuhiro
Keyword(s):  
Horizontal Plane ◽  
Pushover Analysis ◽  
Full Scale ◽  
Horizontal Shear ◽  
Full Scale Test ◽  
Analysis Model ◽  
Scale Test ◽  
Full Scale Tests ◽  
Static Pushover Analysis ◽  
Good Agreement

In the present study, few studies have focused on the horizontal plane of traditional wooden houses in Japan. This study aims to examine the retrofit effects for the horizontal plane of traditional wooden houses based on full-scale tests. The first part of this paper is devoted to the experimental study performed to determine the structural behavior and characteristics of full-scale roof specimens. A horizontal shear test was conducted to obtain the fracture mode and relationship between the applied load and deformation angle. The second part deals with a static pushover analysis of the full-scale roof specimens. The results between the experimental test and the static pushover analysis are presented and discussed. The analysis model used for the static pushover analysis is proposed; the results were in good agreement with the tests.

scholarly journals Full-Scale Tests for Assessing Blasting-Induced Vibration and Noise

2018 ◽  
Vol 2018 ◽  
pp. 1-14
Author(s):  
Chung-Won Lee ◽  
Jiseong Kim ◽  
Gi-Chun Kang
Keyword(s):  
Noise Level ◽  
Full Scale ◽  
Noise Prediction ◽  
Square Root ◽  
Infrastructure Development ◽  
Full Scale Test ◽  
Noise Levels ◽  
Tunnel Excavation ◽  
Scale Test ◽  
Full Scale Tests

Vibration and noise problems caused by a number of construction processes, specifically blasting for infrastructure development, are becoming important because of their civil appeal. In this study, a square root equation (SRE) with a 95% confidence level was proposed for predicting blasting-induced vibration through full-scale test blasting, and the vibration value predicted from this equation was located between the values predicted from the USBM (US Department of Interior, Bureau of Mines), NOF (Nippon Oil & Fats Co., Ltd.), and MCT (Ministry of Construction and Transportation) equations. Additionally, by comparing the measured noise level at full-scale test blasting with the calculated noise levels from several noise prediction equations, it was determined that the noise level predicted by the ONECRC equation had the best agreement with the measured results. However, in cases where blasting includes tunnel excavation, simultaneous measurement of vibration and noise is required to prevent damage to the surrounding facilities.

A new methodology for the assessment of the running resistance of trains without knowing the characteristics of the track: Application to full-scale experimental data

2018 ◽  
Vol 232 (6) ◽  
pp. 1814-1827 ◽  
Author(s):  
Claudio Somaschini ◽  
Tommaso Argentini ◽  
Daniele Rocchi ◽  
Paolo Schito ◽  
Gisella Tomasini
Keyword(s):  
High Speed ◽  
High Capacity ◽  
Full Scale ◽  
Design Stage ◽  
Resistance Force ◽  
Full Scale Test ◽  
High Speed Trains ◽  
Scale Test ◽  
Full Scale Tests ◽  
Resistance Coefficients

The resistance to motion of trains is an essential requisite especially while designing high-speed trains and high-capacity railway lines. The optimisation of friction effects and aerodynamic performance can be done during the design stage of a new train but the actual value of the running resistance can be inferred only by means of full-scale tests during the operation of a train. A CEN standard (EN 14067-4) describes the methodologies for the assessment of the running resistance of railway vehicles starting from full-scale test measurements. According to this standard, the speed-dependent terms of the resistance force have to be determined by means of coasting tests on railway lines, whose characteristics must be well known. Since this is not always possible and small errors on the gradient could lead to major uncertainties in the evaluation of the resistance force, a new method for the estimation of the running resistance coefficients, irrespective of the characteristics of the track is proposed in this paper. The reliability of the method is verified by comparing the results with those obtained from the procedure proposed in the CEN standard. The comparison shows that the new methodology is able to evaluate the resistance coefficients with an accuracy equivalent to that of the other methods but with fewer tests and with a more robust procedure relying on a lesser number of parameters.

The Design and Application of Shear Fracture Propagation Studies

1974 ◽  
Vol 96 (4) ◽  
pp. 323-329 ◽  
Author(s):  
W. A. Poynton ◽  
R. W. E. Shannon ◽  
G. D. Fearnehough
Keyword(s):  
Thermodynamic Equilibrium ◽  
Constant Velocity ◽  
Shear Fracture ◽  
Fracture Propagation ◽  
Full Scale ◽  
Full Scale Test ◽  
Test Behavior ◽  
Scale Test ◽  
Full Scale Tests ◽  
Fracture Arrest

Shear fracture propagation is studied using an analysis based upon the thermodynamic equilibrium of a constant velocity fracture. This equation is shown to describe the behavior of all full scale tests which exhibit constant velocity propagation. This equation is developed to identify the conditions for fracture arrest; the resulting formulation is again consistent with full scale test behavior. The paper also discusses the application of the theory to existing and new pipelines.

Evaluation of Assumptions Used in Engineering Practice to Model Buildings Isolated with Triple Pendulum Isolators in SAP2000

2015 ◽  
Vol 31 (2) ◽  
pp. 637-660 ◽  
Author(s):  
Anthony P. Giammona ◽  
Keri L. Ryan ◽  
Nhan D. Dao
Keyword(s):  
Full Scale ◽  
Sufficient Accuracy ◽  
Engineering Practice ◽  
Design Practice ◽  
Full Scale Test ◽  
Analysis Model ◽  
Shake Table Tests ◽  
Triple Pendulum ◽  
Current Design ◽  
Scale Test

The commercial software platform SAP2000 has been used to design base isolated buildings supported by Triple PendulumTM isolators; however, limited full-scale test data are available to validate the use of the software for this application. Additionally, previous work has demonstrated that several pitfalls must be avoided when modeling these types of structures in SAP2000. The ability of SAP2000 to predict key engineering demand parameters used in the design of a base-isolated building is examined by using methods and assumptions employed in current design practice. The SAP2000 analysis results are compared to the data obtained from shake table tests of a full-scale base-isolated building and comparable predictions obtained from a more complex OpenSees analysis model of the same building. This study suggests that when methods and assumptions common to engineering practice are applied, SAP2000 can predict the responses with sufficient accuracy for design.

Full-Scale Test on Coupled Thermo-Hydro-Mechanical Processes in Engineered Barrier System

1994 ◽  
Vol 1 (1) ◽  
pp. 77-83
Author(s):  
Yoshiji Moro ◽  
Tomoo Fujita ◽  
Takeshi Kanno ◽  
Akira Kobayashi
Keyword(s):  
Full Scale ◽  
Full Scale Test ◽  
Scale Test ◽  
Engineered Barrier

The assessment of particulate matter (PM2.5) removal efficiency on air cleaner products through full scale test in Korea

2019 ◽  
Vol 18 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Kichul Kim ◽  
Pil-Ju Park ◽  
Soomi Eo ◽  
Seungmi Kwon ◽  
Kwangrae Kim ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Removal Efficiency ◽  
Full Scale ◽  
Full Scale Test ◽  
Air Cleaner ◽  
Scale Test

Predicting Roof Diaphragm and Endwall Stiffness From Full-Scale Test Results of a Metal-Clad, Post-Frame Building

1992 ◽  
Vol 35 (3) ◽  
pp. 977-985 ◽  
Author(s):  
K. G. Gebremedhin ◽  
J. A. Bartsch ◽  
M. C. Jorgensen
Keyword(s):  
Full Scale ◽  
Test Results ◽  
Full Scale Test ◽  
Frame Building ◽  
Scale Test

Numerical evaluation of contaminants mixing uniformity in a full-scale test chamber with mixing fan

2020 ◽  
pp. 1420326X2097902
Author(s):  
Hai-Xia Xu ◽  
Yu-Tong Mu ◽  
Yin-Ping Zhang ◽  
Wen-Quan Tao
Keyword(s):  
Concentration Distribution ◽  
Test Chamber ◽  
Full Scale ◽  
Numerical Results ◽  
Test Method ◽  
Test Accuracy ◽  
Full Scale Test ◽  
Concentration Region ◽  
Airflow Field ◽  
Scale Test

Most existing models and standards for volatile organic compounds emission assume that contaminants are uniform in the testing devices. In this study, a three-dimensional transient numerical model was proposed to simulate the mass transport process based on a full-scale test chamber with a mixing fan, and the airflow field and contaminants concentration distribution were obtained within the chamber under airtight and ventilated conditions. The model was validated by comparing the numerical results with experimental data. The numerical results show that the contaminant source position and the airflow field characteristics have significant impact on the contaminant mixing, and the fan rotation has an important role in accelerating mixing. In the initial mixing stage, the concentration distribution is obviously uneven; as the mixing progresses, it gradually reaches acceptable uniformity except for some sensitive regions, such as high concentration region at the injection point of the contaminants and low concentration region at the air inlet. To ensure test accuracy, the monitor should avoid above sensitive regions; and some special regions are recommended where contaminant concentration uniformity can be reached sooner. The ventilated chamber results indicate that the mixture of contaminants in the chamber is actually better than the results shown by conventional test method.

Sign in / Sign up

Export Citation Format

Share Document