搜索结果: 16-30 共查到“知识库 土木建筑工程测量”相关记录151条 . 查询时间(0.857 秒)
As an intervention strategy set amid a stark and neglected, yet highly energized urban setting of Philadelphia, Pennsylvania, this project seeks to relieve a stagnating urban condition through the int...
Preferred Sensor Selection for Damage Estimation in Civil Structures
Preferred Sensor Selection Damage Estimation Civil Structures
2014/10/22
Detecting structural damage in civil structures through non-destructive means is a growing field in civil engineering. There are many viable methods, but they can often be time consuming and costly; r...
Varied Applications of Work Zone Safety Analysis through the Investigation of Crash Data, Design, and Field Studies
Varied Applications Work Zone Safety Analysis the Investigation of Crash Data Design Field Studies
2014/10/22
Work zone crashes and fatalities have been decreasing since 1994. Yet, according to Fatality Analysis Reporting System, 667 people were killed in highway work zone crashes in 2009. As the United State...
A Comparative Evaluation of Crash Data Quality Identifiation Methods
A Comparative Evaluation Crash Data Quality Identification Methods
2014/10/22
Throughout the United States federal and state agencies use crash data in order to properly plan safety improvements within their areas. Unfortunately since 2000, transportation professionals have not...
IFC架构及模型构成分析
建筑信息模型 工业基础类 标准分析 模型表达
2015/10/29
针对IFC(建设和设备管理行业工业基础类)标准表达建筑信息模型（BIM）的复杂性问题，分析了IFC标准体系构成的主要思想和BIM模型表达过程的核心环节。在研究IFC标准体系的基础上，梳理了各层之间的资源组织情况。利用一个矩形梁实例，从建筑实体对象、材料属性、关系组织和几何表达等方面，对IFC标准表达BIM模型的过程进行了深入分析，通过分析得到了IFC标准描述建筑信息模型的4个关键要素。
动三轴试验过程的误差分析
动三轴试验 土动力学 动力特性 试验误差
2014/7/7
动三轴试验是室内土工试验中研究土体动力特性的重要方法，但从试验结果来看具有一定的离散性。这既有试验操作者的人为误差，也有动三轴仪系统本身带来一定误差，如试样制备过程中的误差，系统本身的阻尼力，试验数据的滞后性等等。为了更好地改进和利用动三轴试验研究土体动力特性并解决相关实际问题，有必要对动三轴试验全过程的误差进行分析，提高动三轴试验的准确度。
提供了一种用于近场无损检测研究的采用微悬臂梁进行接收超声波的动态检测技术,借助COMSOL Multiphysics有限元软件模拟了微悬臂梁传感器接收由超声换能器所产生的超声波的动态响应。在进行逐点扫描时，探针针尖恰好在微缺陷上方时，振幅达到其最大值。并与试验结果进行对比，验证了该模拟方法的可行性，有助于对微器件缺陷精确的定性、定量表征作更深一步的理论研究，为后续的实验设计提供了参考，对更加微小的...
Ultrasonic Detection Algorithm Research on the Damage Depth of Concrete after Fire
Concrete Fire damage Damage depth Ultrasonic wave
2014/4/10
To measure the depth of fire-damaged concrete by ultrasonic method, it was traditionally assumed that the concrete of the fire-damaged structural member could be simply classified into damaged layer a...
工程造价考试中如何正确计算基础土石方工程量的几点辨析
工程造价 考试 基础土石方 计算
2014/2/26
工程造价专业发展迅速，各类职业资格考试越来越多。关于基础土石方工程量的计算出现的频率越来越高。如何正确的计算基础土石方工程量是这些类考试的关键。本文介绍了在考试中如何准确计算出土石方相关工程量的一些技巧和方法以期对考生起到一定的指导作用。
以天津滨海地区桩基工程实测资料为基础，应用MATLAB软件编制桩基沉降计算程序，分别用等效作用分层总和法和等代实体深基础法计算桩-承台基础沉降，用明德林法计算桩筏基础沉降。分析表明：等效作用分层总和法计算值小于实测值，而实体深基础法和明德林法则基本大于实测值。分析结果可为3种沉降计算方法在天津滨海地区桩基工程中的应用提供参考。
Dynamic Analysis of Suspension Bridges and Full Scale Testing
Suspension Bridges Dynamic Analysis Tangent Stiffness Cable Structures Bridge Testing
2013/1/31
This paper is concerned with the earthquake analysis of suspension bridges, in which the effects of large deflections are taken into account. The first part of the study deals with an iteration scheme...
Slope Stability Evaluations by Limit Equilibrium and Finite Element Methods Applied to a Railway in the Moroccan Rif
Conventional Methods Finite Elements Safety Factor Slopes Stability
2013/1/31
Since 1930, the analysis of slope stability is done according to the limit equilibrium approach. Several methods were developed of which certain remain applicable because of their simplicity. However,...
新平堡聚落地处晋冀蒙三省区交接处，是一个鸡鸣三省之地。隶属山西省大同市天镇县，位于县治北26.5°公里，东经114°，北纬交汇处，西洋河的南岸。西邻内蒙古古城，东接三墩店2.8公里，南连五里墩店2.8公里。辖区总土地面积13802亩。