搜索结果: 46-60 共查到“知识库 土木建筑结构其他学科”相关记录79条 . 查询时间(4.517 秒)
ESTIMATING MARKOVIAN TRANSITION PROBABILITIES FOR BRIDGE DETERIORATION FORECASTING
Markovian transition probability bridge asset management exponential hazard function axedintervals
2008/12/23
In this paper, a methodology to estimate the Markovian transition probability model is presented to forecast the deterioration process of bridge components. The deterioration states of the bridge com...
LONG-TERM DETERIORATION OF HIGH DAMPING RUBBER BRIDGE BEARING
high damping rubber bearing thermal oxidation deterioration long-term performance
2008/12/23
In recent years, high damping rubber (HDR) bridge bearings have become widely used because of the excellent ability to provide high damping as well as flexibility. However, there are few systematic s...
SHEAR MODULUS AND STRAIN OF LIQUEFIED GROUND AND THEIR APPLICATION TO EVALUATION OF THE RESPONSE OF FOUNDATION STRUCTURES
liquefaction soil-pile-interaction equivalent linear method shear modulus shear strain
2008/12/22
Since the seismic behavior of pile foundations in a liquefiable ground is primarily affected by the behavior of the ground, this paper discusses the usefulness of equivalent linear analysis consideri...
NON-LINEAR HYSTERETIC STRUCTURAL IDENTIFICATION BY UTILIZING ON-LINE SUPPORT VECTOR REGRESSION
support vector regression on-line identification hysteretic structure nonlinear
2008/12/22
Structures exhibit highly nonlinear characters under severe loads such as strong seismic excitations. Therefore, it is crucial to make nonlinear structural identification in civil engineering. Howeve...
EXPERIMENTAL INVESTIGATION ON AGEING BEHAVIORS OF RUBBERS USED FOR BRIDGE BEARINGS
rubber bearing ageing behavior mechanical property pre-strain
2008/12/22
In order to evaluate the deterioration characteristics during the lifecycle of bridge rubber bearing, a series of long-term accelerated exposure tests are performed on four kinds of rubber materials ...
A STUDY ON LOADS ON FOUNDATION PILES FROM FLOWING LIQUEFIED SOIL
centrifuge test liquefaction liquefaction-induced ground displacement pile foundation viscous flow voigt model
2008/12/19
The authors investigated into the fundamental characteristics of the external forces on foundation piles from flowing liquefied soil by experiments under a centrifuge condition. The followings were o...
土木工程结构健康监测的研究是近年来国际学术研究的热点问题之一,
涉及许多不同的研究领域,如数据采集系统、信号处理、结构分析等.阐述了实施土木工程结构健康监测的必要性和
迫切性,介绍了结构健康监测系统的概念、组成及其应用,分析研究了结构健康监测系统的各个子系统的功能、特点和实现方法,
重点讨论了实现各子系统的理论、方法和存在的若干力学问题,论述了结构健康监测在国内外土木工程领域的应用状况,
...
An XML based standard to enable bulk project data transfer between heterogeneous systems
Data Exchange XML Schema Construction Project Collaboration Enterprise Content Management Collaborative Software NCCTP
2010/9/29
The objective of the work reported in this paper was the development of an XML based standard which would enable project data, such as contacts, drawings, documentation, instructions and emails, to be...
大面积超长双向预应力框架结构设计与施工技术
施工技术 框架结构设计
2008/8/1
项目完成单位：上海市第一建筑有限公司、上海预应力工程建设公司、上海核工程研究设计院 组织鉴定单位：上海市建设委员会 鉴定时间：1998.4 本成果获一九九七年上海市科学技术进步三等奖。 本课题主要应用于上海申美饮料食品有限公司金桥新厂主厂房的结构施工。上海申美饮料食品有限公司浦东金桥新厂地处浦东金桥开发区，该主厂房为三层现浇预应力混凝土框架结构，每层均设有局部夹层，平面尺寸为118.6...
结合桥梁参数化3D建模系统的需要，提出快速的虚拟地形生成算法。该算法利用分形理论丰富地形细节，通过四叉树存储不规则三角网，提高点在三角形的检索速度，使用稀疏控制点剖分检索到的三角形，实现桥梁模型和地形的合理叠加；通过点在三角形的查找实现视点与地形的快速碰撞检测，从而控制了视点范围；采用树状结构有效组织地形、天空球和桥梁模型等数据，最终生成以桥梁为主的逼真场景。最后对算法进行了测试，并将其应用在我们...
Considerations Regarding the Damage of the Constructions Structural Elements
the Constructions Structural Elements structural conceptions the climate conditions
2010/8/18
The damage processes of the reinforced concrete constructions are very complex due to the relationship between the adopted structural conceptions, the climate conditions for display, the composition o...
《膜结构技术规程》批准施行
2007/10/22
中国第一本《膜结构技术规程》CECS158∶2004已由中国工程建设标准化协会批准，于2004年8月1日开始施行。本规程由中国钢结构协会空间结构分会和中国建筑科学研究院主编，参加编制工作的有国内从事膜结构的高等学校、设计及制作安装等九个单位。规程编制组于2001年9月成立以来，先后举行了四次编制工作会议，对规程的内容进行了认真的讨论，并数易其稿，其间还向全国各有关单位广泛征求意见，于2003年12...
《空间网格结构技术规程》开始编制
2007/10/22
根据建设部建标[2004]166号文的要求，对《网架结构设计与施工规程》JCJ7-91和《网壳结构技术规程》JCJ61-2003进行修订，新规程名称为《空间网格结构技术规程》。经征询原参编单位意见，确定了参编单位及人员，2004年6月6日在北京召开了编制组成立暨第一次工作会议。建设部建筑工程标准技术归口单位、中国建筑科学研究院和建设部标准定额司的领导出席会议并讲话，会上宣布了主编单位、参编单位和编...
对在中心城区建设大型立交桥的质疑与对策
中心城区 交通环境 高级平交路口 简单立体交叉
2007/7/18
针对当前某些城市在中心城区盲目建造大型立交桥的现象，从交通、环境、经济等方面对其存在的相关问题进行分析和讨论，认为立交规划应以系统分析为指导，不宜在中心城区规划建设大型立交桥。平面交叉口有很大潜力和适应性，科学合理地设计高级渠化灯控平交路口可以满足城市道路的一般交通需求，而且能够营造出景色宜人的城市道路景观，确实必要时，也只宜规划建设城市简单立体交叉。