This paper describes shaking table tests of three eight-story building models： all are masonry structures in the upper stories, with or without frame-shear walls of one- or two- stories at the bottom. The test result...This paper describes shaking table tests of three eight-story building models： all are masonry structures in the upper stories, with or without frame-shear walls of one- or two- stories at the bottom. The test results of damage characteristics and seismic responses are provided and compared. Then, nonlinear response analyses are conducted to examine the reliability of the dynamic analysis. Finally, many nonlinear response analyses are performed and it is concluded that for relatively hard sites under a certain lateral stiffness ratio （i.e., the ratio of the stiffness of the lowest upper masonry story to that of the frame- shear wall story）, the masonry structure with one-story frame-shear wall at the bottom performs better than a structure built entirely of masonry, and a masonry structure with frame-shear wall of two stories performs better than with one-story frame- shear wall. In relatively soft soil conditions, all three structures have similar performane. In addition, some suggestions that could be helpful for design of masonry structures with ground story of frame-shear wall structure in seismic intensity region VII, such as the appropriate lateral stiffness ratio, shear force increase factor of the frame-shear wall story, and permissible maximum height of the building, are proposed.展开更多
As narratives are composed of the content encoded and the medium giving concrete shape to them,narratives are inseparably intertwined with temporalities,those of story time and narrative time.In the poem When We Two P...As narratives are composed of the content encoded and the medium giving concrete shape to them,narratives are inseparably intertwined with temporalities,those of story time and narrative time.In the poem When We Two Parted,there is the co-existence of story time and narrative time.The story time covers three sections depicting separately the past events,the present and the future.They are boiled down into the poem in thirty two lines in total,which gives rise to the variance between duration of story time and duration of narrative time.The durations endow the poem with distinguishable narrative effects.展开更多
Alice Munro is a well-known contemporary Canadian writer.She departs from the traditional linear development but employs a seemingly random narrative line as a structural device in her story-telling.In the five short ...Alice Munro is a well-known contemporary Canadian writer.She departs from the traditional linear development but employs a seemingly random narrative line as a structural device in her story-telling.In the five short stories,"Material","Walk er Brothers Cowboy","The Moons of Jupiter","Miles City,Montana"and"Something I’ve Been Meaning to Tell you",Mun ro manipulates the use of disconnected narrative time to deal with rites of passage.Free from the conventional time schemes,she expresses her vision in multiple themes and leaves the story open for readers.展开更多
Story time是一个根据教材专门编辑设计的语言版块,旨在提高学生的语言技能。在新课程改革的背景下,教师既要向学生传授基本英语知识,又要发展学生的学习能力,提高他们的基本英语技能。Story time是学生最欣赏和最容易接受的形式。教师...Story time是一个根据教材专门编辑设计的语言版块,旨在提高学生的语言技能。在新课程改革的背景下,教师既要向学生传授基本英语知识,又要发展学生的学习能力,提高他们的基本英语技能。Story time是学生最欣赏和最容易接受的形式。教师有必要采用有效的教学方法来改变英语教学的现状。展开更多
基金China Joint Earthquake Science Foundation Under Grant No. 95034National Science Foundation of China Under Grant No. 5067816
文摘This paper describes shaking table tests of three eight-story building models： all are masonry structures in the upper stories, with or without frame-shear walls of one- or two- stories at the bottom. The test results of damage characteristics and seismic responses are provided and compared. Then, nonlinear response analyses are conducted to examine the reliability of the dynamic analysis. Finally, many nonlinear response analyses are performed and it is concluded that for relatively hard sites under a certain lateral stiffness ratio （i.e., the ratio of the stiffness of the lowest upper masonry story to that of the frame- shear wall story）, the masonry structure with one-story frame-shear wall at the bottom performs better than a structure built entirely of masonry, and a masonry structure with frame-shear wall of two stories performs better than with one-story frame- shear wall. In relatively soft soil conditions, all three structures have similar performane. In addition, some suggestions that could be helpful for design of masonry structures with ground story of frame-shear wall structure in seismic intensity region VII, such as the appropriate lateral stiffness ratio, shear force increase factor of the frame-shear wall story, and permissible maximum height of the building, are proposed.
文摘As narratives are composed of the content encoded and the medium giving concrete shape to them,narratives are inseparably intertwined with temporalities,those of story time and narrative time.In the poem When We Two Parted,there is the co-existence of story time and narrative time.The story time covers three sections depicting separately the past events,the present and the future.They are boiled down into the poem in thirty two lines in total,which gives rise to the variance between duration of story time and duration of narrative time.The durations endow the poem with distinguishable narrative effects.
文摘Alice Munro is a well-known contemporary Canadian writer.She departs from the traditional linear development but employs a seemingly random narrative line as a structural device in her story-telling.In the five short stories,"Material","Walk er Brothers Cowboy","The Moons of Jupiter","Miles City,Montana"and"Something I’ve Been Meaning to Tell you",Mun ro manipulates the use of disconnected narrative time to deal with rites of passage.Free from the conventional time schemes,she expresses her vision in multiple themes and leaves the story open for readers.
