scholarly journals AN EXPERIMENTAL STUDY ON SHEAR RESISTING MECHANISM AND SHEAR STRENGTH EVALUATION METHOD OF MUD-PLASTERED WALLS

Author(s):  
Masato NAKAO ◽  
Risa ICHIMONJI ◽  
Yutaka YAMAZAKI ◽  
Yoko ISHIBASHI
Author(s):  
Yuta UEYAMA ◽  
Yasuo KITANE ◽  
Takahiro MATSUI ◽  
Fujio KONDO ◽  
Kazuo TATEISHI

Author(s):  
Jos Hornikx ◽  
Annemarie Weerman ◽  
Hans Hoeken

According to Mercier and Sperber (2009, 2011, 2017), people have an immediate and intuitive feeling about the strength of an argument. These intuitive evaluations are not captured by current evaluation methods of argument strength, yet they could be important to predict the extent to which people accept the claim supported by the argument. In an exploratory study, therefore, a newly developed intuitive evaluation method to assess argument strength was compared to an explicit argument strength evaluation method (the PAS scale; Zhao et al., 2011), on their ability to predict claim acceptance (predictive validity) and on their sensitivity to differences in the manipulated quality of arguments (construct validity). An experimental study showed that the explicit argument strength evaluation performed well on the two validity measures. The intuitive evaluation measure, on the other hand, was not found to be valid. Suggestions for other ways of constructing and testing intuitive evaluation measures are presented.


Author(s):  
Naoyuki Asao ◽  
Katashi Fujii ◽  
Hiroaki Fukuda ◽  
Ryuichi Yokota

In Japan, a lot of steel railway bridges were constructed during the period of rapid economic growth in the 1960s. Now, since over 50 years have passed, the aging of these structures has become conspicuous and a major social problem. In particular, for steel plate girders with open deck system, deterioration and damage due to corrosion is becoming obvious. Moreover, the remaining strength evaluation method of corroded structures is not always sufficient. Therefore the purpose of this study is to propose an analytically-based evaluation method for the maintenance of steel railway bridges. The following are noted: 1) Regarding the shear strength of plate girders with corrosion near supports, the remaining strength depends on the corroded surface condition of each component such as a web or a vertical stiffener. And, according to the form and degree of corrosion, the fracture mode also changes from the buckling of web to the buckling of cross-shape column consisting of the web and vertical stiffener. The result shows that the corroded web has more effect on the shear strength than the vertical stiffener. 2) Regarding the peeling between the web and bottom flange due to corrosion near supports, the remaining strength is deteriorated more rapidly than above case 1, when the peeling range lengthens more than the sole plate area.


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