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Survey Safety01:28

Survey Safety

24
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
24
Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

152
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
152
Zero-Force Member01:30

Zero-Force Member

1.3K
A truss is a framework that comprises slender members connected at their ends by joints. Trusses are widely used in engineering and architecture to stabilize and strengthen structures like bridges, roofs, and towers. Truss members are designed to carry loads through tension and compression, enabling the truss to withstand external forces.
One critical concept in truss design is the idea of zero-force members. It refers to a truss member that experiences no stress under loading conditions.
1.3K
Posttensioned Masonry Walls01:15

Posttensioned Masonry Walls

112

Post-tensioned masonry walls use high-strength steel rods or flexible tendons to enhance the strength and efficiency of masonry structures. These elements are securely anchored to the foundation and extend vertically either within the cores of the masonry units or between the masonry wythes. The construction process involves building the wall with these tensioning elements in place and allowing the mortar to fully cure.
Following the curing process, the tensioning begins. Steel rods are...
112
Design Consideration01:22

Design Consideration

177
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
177
Reinforced Brick Masonry01:15

Reinforced Brick Masonry

509
Reinforced brick masonry is an advanced construction technique that enhances the structural integrity of brick walls by incorporating steel reinforcements. These reinforcements are either placed within the hollow cores of bricks or sandwiched between two layers of masonry, known as wythes, and are then secured in place with grout. Grout is a fluid mixture composed of Portland cement, aggregate, and water, providing the necessary bonding agent for the steel and brick.
To fortify brick walls...
509

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Updated: May 26, 2025

Design and Construction of an Urban Runoff Research Facility
13:48

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

13.0K

在一个零后的世界里,为建筑安全做零工作.

Fred Sherratt1, Dylan Harch1, Ayleen Perez1

  • 1Construction Safety Research Alliance, University of Colorado Boulder, 1111 Engineering Drive, UCB 428, Boulder, CO 80309, USA.

Journal of safety research
|February 25, 2025
PubMed
概括

对建筑安全的"零"方法缺乏成功的经验证据. 对2018-2022年美国数据的统计分析发现,使用零和不使用零的公司之间的严重伤害和死亡人数没有显著差异.

科学领域:

  • 职业安全与健康问题 职业安全与健康问题
  • 建设管理建设管理.
  • 风险管理 风险管理

背景情况:

  • 建筑安全中的"零"概念尽管经验支持有限,但被广泛采用.
  • 基于零的安全目标在行业内面临着支持者和批评者.

研究的目的:

  • 批判性地评估零基础安全的理论基础.
  • 统计分析零基础安全在减少美国建筑行业严重伤害和死亡 (SIF) 的有效性.

主要方法:

  • 关于零基础安全的理论考虑的批判性审查.
  • 对美国SIF事件数据 (2018-2022) 的统计分析,比较了有和没有零基础安全政策的公司.

主要成果:

  • 虽然使用零事件的公司总体上报告了较少的事件,但统计分析显示SIF结果没有显著差异.
  • 这些数据是不确定的,无法证明或反驳零基础安全的有效性.

结论:

  • 零基础安全仍然是职业健康和安全管理中的一个有争议的问题.
  • 来自美国的经验数据并没有显示出基于零的安全性的明显好处,反映了来自英国的发现.
  • 新兴的替代安全管理策略最终可能会取代基于零的方法.
关键词:
建筑工程 建筑工程 建筑工程安全宣传安全宣传美国 美国 美国 美国零零零零零零零零零零零零零零零零零零零零零没有伤害,零伤害.

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