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Related Concept Videos

Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

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 cistern.
Movement Joints in Buildings01:27

Movement Joints in Buildings

Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress.
The simplest type of movement joints, working joints, are...
Design Consideration01:22

Design Consideration

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 aspect...
Static Equilibrium - II01:07

Static Equilibrium - II

Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or system are both zero. This means that both the linear and angular accelerations are zero. Thus, the object is at rest, or its center of mass is moving at a constant velocity. However, this does not mean that no forces are acting on the object within the system. In fact, there are very few scenarios on Earth in which no forces are acting upon...
Design Example: Calculating Safe Diameter for Wind-Exposed Disc01:17

Design Example: Calculating Safe Diameter for Wind-Exposed Disc

Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

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Related Experiment Video

Updated: May 19, 2026

Nest Building as an Indicator of Health and Welfare in Laboratory Mice
06:12

Nest Building as an Indicator of Health and Welfare in Laboratory Mice

Published on: December 24, 2013

Green buildings need good ergonomics.

A Hedge1, J A Dorsey

  • 1Department of Design and Environmental Analysis, College of Human Ecology, Cornell University, Ithaca, NY 14853, USA. ah29@cornell.edu

Ergonomics
|September 1, 2012
PubMed
Summary

Occupants generally had a positive experience in Leadership in Energy and Environmental Design (LEED) Platinum buildings. However, some green buildings require better integration of ergonomics for optimal indoor environmental quality and occupant well-being.

Area of Science:

  • Environmental Psychology
  • Building Science
  • Ergonomics

Background:

  • Green buildings, such as those certified by Leadership in Energy and Environmental Design (LEED), are increasingly common on college campuses.
  • Post-occupancy evaluations are crucial for understanding occupant experiences in these sustainable structures.

Purpose of the Study:

  • To evaluate occupant satisfaction, health, and performance in two LEED Platinum buildings.
  • To identify indoor environmental and ergonomics issues in green buildings.
  • To assess the role of ergonomics in sustainable building design and rating systems.

Main Methods:

  • A retrospective online survey was administered to 44 occupants of two LEED Platinum buildings.
  • The survey addressed indoor environment quality (air temperature, freshness, quality, noise) and ergonomics.

Related Experiment Videos

Last Updated: May 19, 2026

Nest Building as an Indicator of Health and Welfare in Laboratory Mice
06:12

Nest Building as an Indicator of Health and Welfare in Laboratory Mice

Published on: December 24, 2013

Main Results:

  • Occupants reported a generally positive experience regarding health, performance, and satisfaction.
  • One building exhibited significant issues with air temperature variability, air freshness, air quality, and noise.
  • Specific ergonomics design flaws were identified within these energy-efficient structures.

Conclusions:

  • Integrating ergonomics into green building design is essential for enhancing occupant well-being and performance.
  • The findings suggest a need to incorporate comprehensive ergonomics criteria into the US LEED rating system for a more holistic approach to sustainable building design.