"古代大型铁铸文物"系列文章之八古代大型铁塔和古塔的大型铁塔刹

叙述了我国古代铁塔的由来和现况，介绍了11个古代铁塔的名称、高度、铸造年代和特点，并阐述了古代铁塔的铸造工艺。同时，还介绍了若干古塔顶上的大型铁塔刹的有关情况。     

兰州白塔倾斜测量方法浅析

以兰州白塔为例,阐述了在地理条件制约情况下古建筑倾斜观测的施测方法,提出将直接法和间接法相结合、以两方向前方交会代替传统前方交会的倾斜测量方法,并从控制网的建立、外业观测和内业数据处理方面系统的说明了白塔倾斜观测的整个实施过程,对类似塔体及高层建筑物的倾斜测量有一定的指导意义.     

槐花蜂蜜的流变性能

采用ＮＤＪ－７９型旋转粘度计测定了不同水份含量的山东槐花蜜在３０℃～７０℃温度范围内的流变特性，并考察了水份含量和温度对其粘度的影响规律，回归出了二者对粘度影响的经验方程。结果表明在所考察的范围内，槐花蜜为假塑性流体，符合幂律方程的τ＝Ｋγｎ；温度对其表观粘度的影响符合Ａｒｒｈｅｎｉｕｓ方程；水份含量对槐花蜜的表观粘度和流体性质的影响显著，含水量越少，非牛顿性越显著；反之牛顿性越显著。表观粘度与温度和水份符合经验式ηａ，１００＝２．８４９５２×１０－１０×ｅｘｐ（４９７６．４３／Ｔ）×Ｗ－３．０２１７２。据此可在一定范围内预测蜂蜜的粘度和流变特性，为工业加工生产提供了一定的理论依据     

日本法隆寺西院五重塔玄数初探

为了研究中国古老的山西应县木塔维修问题，基于中华道教玄学首次识别了日本奈良法隆寺西院五重塔古木建筑原结构设计的主要尺寸和西院的建筑布局，结果对亚洲建筑科技史和中华古木建筑加固修复都有重要参考价值。     

中国古塔的形式分析

介绍中国古塔从"窣堵坡"到"塔"的传入过程,并进行了中国古塔不同的结构用材与形式关系的分析,以及在佛教教义和中国传统儒家思想--中庸之道共同影响下的形式分析.     

甘肃庆阳地区砖塔造型分析

中国古塔建筑艺术绚丽多姿,是中国优秀传统文化的有形体现。该文基于实地调研,采用类比、归纳的方法,对甘肃庆阳地区砖塔造型的影响因素(如社会发展背景等)和古塔结构本身两方面进行了分析,总结出庆阳地区砖塔的造型特点与造型规律。     

利用PMC自恢复功能完善液压控制

针对某数控转塔液压冲床由干扰引起液压控制系统的故障排除的问题,在判断出故障原因用常规方法不能解决后,通过对冲压工作过程的分析,提出了完善PMC控制程序自动恢复液压控制的方法来排除。经现场调试、监控、运行表明:该方法能够解决干扰引起液压控制系统故障,并且比较简单,对同行具有一定的借鉴作用。     

Advances in structural mechanics of Chinese ancient architectures

Chinese ancient architectures are valuable heritage of ancient culture of China. Many historical building have been preserved up to now. The researches on the structural mechanics of ancient architectures show the different aspects of structure and mechanics. Systematical studies on the structural mechanics of ancient architectures have been carried out at Xi’an Jiaotong University since 1982. It is related with the need of repair of some national preservation relics in Xi’an. These studies include: 1) Ancient wooden structures including three national preservation relics Arrow Tower at North City Gate, City Tower at East City Gate, and Baogao Temple in Ningbao, Zhejiang province. 2) Ancient tall masonry building, the Big Goose Pagoda and Small Goose Pagoda in Xi’an. 3) Mechanical characteristics of ancient soil under foundation and city wall; the influence of caves in and under the ancient City Wall on the stability of the wall. 4) The typical Chinese ancient building at the center of city: the Bell Tower and Drum tower. 5) The behavior of Dou-Gong and Joggle joint of Chinese ancient wooden structure. 6) The mechanical behavior of ancient soils under complex stress state. A new systematical strength theory, the unified strength theory, is used to analyze the stability of ancient city wall in Xi’an and foundation of tall pagoda built in Tang dynasty. These researches also concern differential settlements of Arrow Tower and resistance to earthquake of these historical architecture heritages. Some other studies are also introduced. This paper gives a summary of these researches. Preservation and research are nowadays an essential requirement for the famous monuments, buildings, towers and others. Our society is more and more conscious of this necessity, which involves increasing activities of restoration, and then sometimes also of repair, mechanical strengthening and seismic retrofitting. Many historical buildings have in fact problems of structural strength and stability; the need for further studies on structural mechanics and materials is definitely growing. __________ Translated from Advances in Mechanics, 2006, 36(1): 43–64 [译自: 力学进展]     

古塔倾斜观测和数据分析

基于全站仪的应用,提出了古塔倾斜观测的方法,介绍了观测步骤和计算方法。     

视频流广播协议的研究和建模

以准视频点播技术为背景,通过对该技术的核心要素--VoD广播协议族进行归纳、分析,并设计了一个新的数学模型--宝塔模型,并由该模型出发分析了N-VoD系统的性能与特点.该模型在一个8 MHz模拟频道上传输4套数字节目,其点播最大延迟为8 s,大大缩短了用户等待时间.