Bridge bearings are a small part of the whole bridge structure,but it can affect the corner of the bridge,and the stability and quality of the bridge deck,so the performance of the bridge bearing can directly determin...Bridge bearings are a small part of the whole bridge structure,but it can affect the corner of the bridge,and the stability and quality of the bridge deck,so the performance of the bridge bearing can directly determine the quality and lifespan of the entire bridge.The bridge bearing connects the upper and lower parts of the whole bridge.In order to improve the quality and structure of the whole bridge,the layout and selection of bridge bearings needs to be done well,the construction process needs to be closely monitored,and the whole process needs to be well-managed.The existing problems should be analyzed in detail and solved in time to ensure the quality of the bridge project.展开更多
As a great engineering work for the purpose of military defense in the time of Cold Weapon,the Great Wall’s military function is of the most importance.This study takes the Xiaohekou section of the Great Wall in Moun...As a great engineering work for the purpose of military defense in the time of Cold Weapon,the Great Wall’s military function is of the most importance.This study takes the Xiaohekou section of the Great Wall in Mount.Zhuizi constructed in the Ming Dynasty in Liaoning Province as the research object.In addition,this study discusses the relationship between the terrain and its site selection and layout from the military perspective.This research analyzes the trend and the grade of the terrain,the distance,the view range,and the effective firing range between the main body and the subsidiary establishments through GIS software.The GPS data collected in the on-site investigation were used,applying the theories of military geomorphology.Furthermore,this study concludes the characteristics of the site selection and the layouts of the city walls,the hollow watchtowers,the M a ria n s,and the signal towers on different terrains and the reasons behind.展开更多
Geomantic pagodas are evolved from Buddhist pagodas in the history of China. During the Ming and Qing Dynasties, people attached importance to the imperial examination, so they were keen on construction of geomantic p...Geomantic pagodas are evolved from Buddhist pagodas in the history of China. During the Ming and Qing Dynasties, people attached importance to the imperial examination, so they were keen on construction of geomantic pagodas in landscapes to pray for good luck. This phenomenon was more obvious in southern China, especially in Guangdong and Jiangxi. In this paper, the location and spatiotemporal distribution of geomantic pagodas in Guangdong and Jiangxi were studied by using Google Earth and Arc GIS, combining with ASTER GDEM data. In addition, the effects of elevation, topographic profile and slope on site selection of geomantic pagodas were investigated to sum up the distribution and space environment characteristics of geomantic pagodas in Guangdong and Jiangxi, explore the relationship between geomantic pagodas structure and city landscape, and investigate the effects of spatio-temporal distribution of geomantic pagodas on city pattern.展开更多
文摘Bridge bearings are a small part of the whole bridge structure,but it can affect the corner of the bridge,and the stability and quality of the bridge deck,so the performance of the bridge bearing can directly determine the quality and lifespan of the entire bridge.The bridge bearing connects the upper and lower parts of the whole bridge.In order to improve the quality and structure of the whole bridge,the layout and selection of bridge bearings needs to be done well,the construction process needs to be closely monitored,and the whole process needs to be well-managed.The existing problems should be analyzed in detail and solved in time to ensure the quality of the bridge project.
基金This study was supported by the National Social Science Fund of China under Grant 18BGL278.
文摘As a great engineering work for the purpose of military defense in the time of Cold Weapon,the Great Wall’s military function is of the most importance.This study takes the Xiaohekou section of the Great Wall in Mount.Zhuizi constructed in the Ming Dynasty in Liaoning Province as the research object.In addition,this study discusses the relationship between the terrain and its site selection and layout from the military perspective.This research analyzes the trend and the grade of the terrain,the distance,the view range,and the effective firing range between the main body and the subsidiary establishments through GIS software.The GPS data collected in the on-site investigation were used,applying the theories of military geomorphology.Furthermore,this study concludes the characteristics of the site selection and the layouts of the city walls,the hollow watchtowers,the M a ria n s,and the signal towers on different terrains and the reasons behind.
基金Sponsored by National Natural Science Foundation of China(51608007)Young Top-notch Talent Cultivation Project of North China University of Technology
文摘Geomantic pagodas are evolved from Buddhist pagodas in the history of China. During the Ming and Qing Dynasties, people attached importance to the imperial examination, so they were keen on construction of geomantic pagodas in landscapes to pray for good luck. This phenomenon was more obvious in southern China, especially in Guangdong and Jiangxi. In this paper, the location and spatiotemporal distribution of geomantic pagodas in Guangdong and Jiangxi were studied by using Google Earth and Arc GIS, combining with ASTER GDEM data. In addition, the effects of elevation, topographic profile and slope on site selection of geomantic pagodas were investigated to sum up the distribution and space environment characteristics of geomantic pagodas in Guangdong and Jiangxi, explore the relationship between geomantic pagodas structure and city landscape, and investigate the effects of spatio-temporal distribution of geomantic pagodas on city pattern.
