According to the engineering features of higher pile-column bridge pier in mountainous area, a clamped beam mechanical model was set up by synthetically analyzing the higher pile-column bridge pier buckling mechanism....According to the engineering features of higher pile-column bridge pier in mountainous area, a clamped beam mechanical model was set up by synthetically analyzing the higher pile-column bridge pier buckling mechanism. Based on the catastrophe theory, the cusp catastrophe model of higher pile-column bridge pier was established by the determination of its potential fimction and bifurcation set equation, the necessary instability conditions of high pile-column bridge pier were deduced, and the determination method for column-buckling and lateral displacement of high pile-column bridge pier was derived. The comparison between the experimental and calculated results show that the calculated curves agree with testing curves and the method is reasonable and effective.展开更多
Robert James Waller （1939-2014） does not catch readers＇ attention until his popular novel The Bridges of Madison County （1996） wins him great admirations since its publication in 1992 which brings him instant suc...Robert James Waller （1939-2014） does not catch readers＇ attention until his popular novel The Bridges of Madison County （1996） wins him great admirations since its publication in 1992 which brings him instant success. The story explores the dilemma between responsibility of family and fulfillment of desires. Set in America in the 1960s, the novel is woven by the romantic story of the two middle-aged man and woman after they countered and gathered together for four days. Though simple in plot, it really deserves detailed interpretation and appreciation. This paper will mainly discuss Kincaid＇s cultural values reflected not only in the romance between his lover and him, but also in his attitudes towards women＇s rights.展开更多
基金Project(50578060) supported by the National Natural Science Foundation of China
文摘According to the engineering features of higher pile-column bridge pier in mountainous area, a clamped beam mechanical model was set up by synthetically analyzing the higher pile-column bridge pier buckling mechanism. Based on the catastrophe theory, the cusp catastrophe model of higher pile-column bridge pier was established by the determination of its potential fimction and bifurcation set equation, the necessary instability conditions of high pile-column bridge pier were deduced, and the determination method for column-buckling and lateral displacement of high pile-column bridge pier was derived. The comparison between the experimental and calculated results show that the calculated curves agree with testing curves and the method is reasonable and effective.
文摘Robert James Waller （1939-2014） does not catch readers＇ attention until his popular novel The Bridges of Madison County （1996） wins him great admirations since its publication in 1992 which brings him instant success. The story explores the dilemma between responsibility of family and fulfillment of desires. Set in America in the 1960s, the novel is woven by the romantic story of the two middle-aged man and woman after they countered and gathered together for four days. Though simple in plot, it really deserves detailed interpretation and appreciation. This paper will mainly discuss Kincaid＇s cultural values reflected not only in the romance between his lover and him, but also in his attitudes towards women＇s rights.
