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Related Concept Videos

Design Consideration01:22

Design Consideration

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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...
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Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

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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.
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Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

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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.
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Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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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...
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Design Example: Traverse Angle Computations01:25

Design Example: Traverse Angle Computations

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Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
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Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

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Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
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Related Experiment Video

Updated: Dec 23, 2025

Design and Optimization Strategies of a High-Performance Vented Box
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Occupant-centered optimization framework to evaluate and design new dynamic shading typologies.

Victor Charpentier1, Forrest Meggers2,3, Sigrid Adriaenssens1

  • 1Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey, United States of America.

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|April 25, 2020
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Summary

This study introduces a new framework for optimizing dynamic solar shading systems. It enables designers to compare and improve shading performance for better building energy efficiency and occupant comfort.

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Area of Science:

  • Building Science
  • Sustainable Architecture
  • Energy Efficiency

Background:

  • Dynamic solar shading can reduce building energy use and enhance occupant comfort.
  • Current shading systems are difficult to compare due to rule-based control algorithms.
  • A performance-driven metric is needed to assess optimal kinematic design for shading systems.

Purpose of the Study:

  • To present an original framework for the design and performance optimization of dynamic solar shading systems.
  • To move beyond rule-based strategies towards performance-driven optimization.
  • To provide a method for evaluating and comparing different shading system typologies.

Main Methods:

  • Developed a flexible framework using interpolation of simulations and global minimization.
  • Applied a control strategy focused on work plane illuminance targets and minimal operational energy.
  • Utilized Radiance and EnergyPlus for evaluating energy demand and daylight quantity.

Main Results:

  • The framework was applied to a case study involving three dynamic shading typologies.
  • Results provided detailed analytics on shade behavior and the effectiveness of kinematic degrees-of-freedom.
  • The methodology demonstrated its usefulness in evaluating and comparing shading system designs.

Conclusions:

  • The proposed framework facilitates an iterative and comparative design process for dynamic solar shading.
  • It enables designers to evaluate and compare new and existing shading systems effectively.
  • This approach guides innovation to improve building energy performance and occupant well-being.