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Your search keyword '"Fang, Pengpeng"' showing total 18 results
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18 results on '"Fang, Pengpeng"'

15. Local buckling of steel plates in composite members with tie bars under axial compression

Author

Zi-Xiong Guo, Hong-Song Hu, Fang Pengpeng, Bahram M. Shahrooz, and Yang Liu

Subjects
Materials science, Composite number, 0211 other engineering and technologies, 020101 civil engineering, 02 engineering and technology, Finite element method, 0201 civil engineering, Stress (mechanics), Buckling, Axial compression, 021105 building & construction, Shear wall, Steel plates, Boundary value problem, Composite material, Civil and Structural Engineering
Abstract

Tie bars have been frequently used in square or rectangular concrete-filled steel tubular (CFST) columns and concrete-filled steel plate (CFSP) composite shear walls for delaying local buckling of the steel plates and also improving the concrete confinement. This study investigated the entire response of steel plates in composite members with tie bars. Twelve specimens were designed and tested under axial compression. In these specimens, only the steel plates resisted the axial load, and the concrete was only used to restrain the inward buckling of the steel plates. The effects of the width-to-thickness ratio of the steel plate and the ratio of the vertical spacing of the tie bars to the steel plate width (abbreviated as vertical-spacing-to-width ratio) were investigated. It was found that the increase in the performance of the steel plates due to the tie-bar restraint was quite limited when the vertical-spacing-to-width ratio was 1/2 and became more significant when this ratio decreased to 1/3. The elastic buckling stresses of rectangular plates having boundary conditions similar to those in composite members were computed using the finite element method for further strength evaluation of the steel plates. It was found that the effect of the columns of tie-bars on the elastic buckling stress increased as the vertical-spacing-to-width ratio decreased and was negligible when this ratio was larger than 0.6. Simplified equations for estimating the maximum strength and reserved strength (defined as the average stress corresponding to the average strain of 3%) of the steel plates in composite members with tie bars were developed based on the test results and elastic buckling analyses.

Published
2020

17. The BDNF Val66Met polymorphism impacts victim's moral emotions following interpersonal transgression.

Author

Quan, Rui, Wu, Zhenzhen, Guo, Wenxuan, He, Linlin, Fang, Pengpeng, and Gong, Pingyuan

Subjects
CRIME, EMOTIONS, ETHICS, FORGIVENESS, GENETIC polymorphisms, INTERPERSONAL relations, LEGAL procedure, PSYCHOLOGY, PUNISHMENT, VICTIMS, BRAIN-derived neurotrophic factor
Abstract

Immoral behaviors make individuals abominate and punish transgressors. Inspired by the associations between the Val66Met polymorphism of brain‐derived neurotropic factor (BDNF) gene and emotional responses following negative events, we investigated whether this polymorphism was also associated moral emotions such as punishment and forgiveness following interpersonal transgression. To do so, we categorized 340 individuals according to the BDNF Val66Met and assessed moral emotions by using 12 hypothetic scenarios in different conditions of intention and interpersonal consequence. The results indicated that this polymorphism was significantly associated with moral aversion and punishment towards transgressors. Victims with the Val/Val genotype expressed less aversion and punishment than the Met carriers, regardless of intention and interpersonal consequence. Moreover, this polymorphism was associated with forgiveness. Victims with the Val/Val genotype expressed more forgiveness than the Met carriers. Taken together, these findings highlight the importance of the BDNF Val66Met to moral emotions. [ABSTRACT FROM AUTHOR]

Published
2021
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