A novel seismic design method, namely split-pier seismic design, is proposed. A vertical gap and connect elements are set in split-piers. The lateral stiffness of piers is reduced by cracking of the connect elements u...A novel seismic design method, namely split-pier seismic design, is proposed. A vertical gap and connect elements are set in split-piers. The lateral stiffness of piers is reduced by cracking of the connect elements under severe earthquake, and the seismic response of bridges is reduced by avoiding the site predominant periods. A model of tied-arch rigid frame bridge with split-piers was designed. Seismic performance was investigated by pseudo-static experimentation on the scale model, The failure process of split-piers, the hysteresis characteristic and the effect of split-piers on the superstructure are presented. Results show that the split-pier has better seismic performance than common ductile piers do.展开更多
The bronzes from Mound No. 3 at Jiunuudun contain elements of many cultures. In type, for example, there are the ding tripod with an inverted-dish-shaped cover, the swing-chained pot and the covered dou stemmed vessel...The bronzes from Mound No. 3 at Jiunuudun contain elements of many cultures. In type, for example, there are the ding tripod with an inverted-dish-shaped cover, the swing-chained pot and the covered dou stemmed vessel commonly seen on contemporaneous vestiges in the Central Plains and the Qi and Lu states. On the other hand, among the finds are the Tang ding, zun vase, dragon-head-shaped he tripod and fou pot characteristic of contemporaneous tombs of the Wu and Yue states.Another type of bronze object is the animal-head ding previously yielded mainly from the territory of ancient Shu ethnic group. Moreover, there is a batch of bronzes typical of the Xu State, such as the chime-bells decorated with winged-animal-shaped scrolls, ear-less leg-less washing basin, incense burner tray with the base on a post-shaped ring-foot. In decorative style, one can see elements of the Rong and Di cultures. Evidently the bronze culture of the Xu State in the late Spring and Autumn period possessed rich cultural connotations.展开更多
基金The Natural Science Foundation of Jiangsu Province(NoBK2002061)
文摘A novel seismic design method, namely split-pier seismic design, is proposed. A vertical gap and connect elements are set in split-piers. The lateral stiffness of piers is reduced by cracking of the connect elements under severe earthquake, and the seismic response of bridges is reduced by avoiding the site predominant periods. A model of tied-arch rigid frame bridge with split-piers was designed. Seismic performance was investigated by pseudo-static experimentation on the scale model, The failure process of split-piers, the hysteresis characteristic and the effect of split-piers on the superstructure are presented. Results show that the split-pier has better seismic performance than common ductile piers do.
文摘The bronzes from Mound No. 3 at Jiunuudun contain elements of many cultures. In type, for example, there are the ding tripod with an inverted-dish-shaped cover, the swing-chained pot and the covered dou stemmed vessel commonly seen on contemporaneous vestiges in the Central Plains and the Qi and Lu states. On the other hand, among the finds are the Tang ding, zun vase, dragon-head-shaped he tripod and fou pot characteristic of contemporaneous tombs of the Wu and Yue states.Another type of bronze object is the animal-head ding previously yielded mainly from the territory of ancient Shu ethnic group. Moreover, there is a batch of bronzes typical of the Xu State, such as the chime-bells decorated with winged-animal-shaped scrolls, ear-less leg-less washing basin, incense burner tray with the base on a post-shaped ring-foot. In decorative style, one can see elements of the Rong and Di cultures. Evidently the bronze culture of the Xu State in the late Spring and Autumn period possessed rich cultural connotations.
