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相关概念视频

Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

49
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
49
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

48
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
48
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

238
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
238
Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

112
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
112
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

81
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
81
Resultant of a General Distributed Loading01:13

Resultant of a General Distributed Loading

674
While designing structures exposed to non-uniform loads, it is crucial to consider the resultant force and its location. This resultant force is a single vector representing the net force applied due to the distributed load.
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
674

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相关实验视频

Updated: Jul 6, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
14:55

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

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使用BrIM评估桥梁建设对工作区交通影响的框架.

Mohamed Marzouk1, Ahmed Elsayed2

  • 1Structural Engineering Department, Faculty of Engineering, Cairo University, Giza, 12613, Egypt. mmarzouk@cu.edu.eg.

Scientific reports
|January 3, 2024
PubMed
概括

本研究介绍了一个使用桥梁信息建模 (BrIM) 和谷歌地图API来可视化桥梁建设的框架.

科学领域:

  • 土木工程 土木工程是指土木工程.
  • 运输工程 运输工程
  • 地理信息系统 地理信息系统

背景情况:

  • 桥梁建设项目对城市交通有重大影响.
  • 对这些影响的准确可视化对于交通管理至关重要.
  • 现有的方法缺乏对施工进展和交通流量的综合可视化.

研究的目的:

  • 开发和演示一个框架,以可视化桥梁建设对工作区交通的影响.
  • 将桥梁信息建模 (BrIM) 与交通建模工具集成,以进行增强的分析.
  • 在不同施工阶段评估交通状况和用户成本.

主要方法:

  • 一个由四个模块组成的框架,集成了Brim,谷歌地图API,交通调查和虚拟现实 (Twinmotion).
  • 每天跟踪施工进展情况和交通数据建模.
  • 对各个施工阶段的交通模拟和用户成本计算.
  • 使用VR可视化施工阶段和交通状态.

主要成果:

  • 开发的框架有效地可视化了桥梁建设对工作区交通的影响.
  • 交通影响和用户成本在最初的项目阶段是最高的.
  • 对交通的影响在后期阶段会减少,这取决于具体的建筑活动.

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Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
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Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
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Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

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结论:

  • 该框架提供了关于在桥梁建设期间管理工作区交通的实用见解.
  • 由于影响更大,早期的项目阶段需要更密集的交通管理策略.
  • 结合BrIM和交通建模,为城市基础设施项目提供了有价值的工具.