相关实验视频
Updated: Jul 4, 2026

10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
Published on: September 17, 2013
24.1K
在建筑工业中普遍存在的WRMSD的基于任务的评估:一个职业和社会经济的视角
Madiha Ijaz1, Sajid Rashid Ahmad1, Muhammad Akram2
1College of Earth and Environmental Sciences, University of the Punjab, Lahore, Pakistan.
Journal of back and musculoskeletal rehabilitation
|September 13, 2024
概括
建筑工作对工人的肌肉骨健康构成重大风险. 这项研究量化了这些风险,发现窗户框架等任务和袋装等活动特别危险,影响工人的上下肢.
科学领域:
- 职业健康 职业健康 职业健康
- 人体工程学就是人体工程学.
- 公共卫生 公共卫生
背景情况:
- 建筑行业的工人面临着与工作相关的肌肉骨疾病 (WMSDs) 的高风险.
- 了解与不同建筑任务相关的特定风险对于预防和干预至关重要.
研究的目的:
- 量化与建筑工人工作相关的肌肉骨疾病相关的风险的重要性.
- 识别特定的建筑任务和生活方式因素导致WMSDs.
主要方法:
- 在20个工地调查了600名建筑工人,使用修改后的北欧肌肉骨问卷.
- 通过快速上肢评估 (RULA) 和快速全身评估 (REBA) 表来评估七项建筑任务的工人表现.
- 雇员 SPSS v. 26 和 R 编程用于统计分析.
主要成果:
- 参与窗户/门框工作的工人报告身体不适的发生率最高.
- 高体重指数 (BMI) 和短暂的休息时间 (<15分钟) 与部疼痛的风险增加有关.
- 袋装等任务对脚构成重大风险 (OR 9.881),窗户/门框对脚造成重大风险 (OR 2.057).
- 对于"拆除" (9.25) 等任务,RULA的分数显示高风险,而REBA的分数在所有任务中从8到11不等.
结论:
- 工作阶段和生活方式因素显著影响建筑工人的上肢和下肢.
- 这项大规模研究的结果为制定有针对性的干预措施以减轻建筑行业的WMSD提供了足够的基础.
相关概念视频
Mortar Properties
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to the...
Masonry Loadbearing Walls
Masonry load-bearing walls, constructed from materials like brick, stone, or concrete masonry units, serve as a crucial component in building structures by supporting the loads from floors and roofs and transferring them to the foundation. These walls, known for their compressive strength, can be reinforced or unreinforced to suit different building needs, accommodating both the dead and live loads while maintaining safety through lower working stresses compared to the materials' ultimate...
Workability of Concrete
The workability of concrete is a crucial property that affects its handling, placing, and finishing during construction. It describes the ease with which concrete can be mixed, placed, compacted, and finished. Workability is primarily concerned with the concrete's movement and its ability to resist internal friction and external resistance from molds and reinforcements during the application process.
Concrete's workability is determined by its resistance to internal forces that arise when...
Concrete's workability is determined by its resistance to internal forces that arise when...
Factors Affecting Workability
The workability of concrete is a critical characteristic that influences the ease of mixing, handling, and finishing the concrete. It is affected by several factors including water content, aggregate properties, and admixtures like air entrainment. Water plays a fundamental role as it lubricates the concrete mix, facilitating easier movement and placement. However, the water requirement varies depending on the texture and shape of aggregates. Finer particles and angular, rough-textured...
Design Example: Managing Concrete Workability
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.
To address...
To address...
Survey Safety
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...

