What are the principles of structural engineering?
So to summarise, the main three principles of structural engineering are as follows:
- Structural Safety: Designing a structure which will not collapse.
- Serviceability: Designing a structure which people can use for a certain period of time without any damage or discomfort.
How do you make a structure stable?
A structure is stable if its centre of gravity lies above its base. An object is unstable when its centre of gravity lies outside its base. In other words, an object is unstable if a line drawn between its centre of gravity and the centre of the Earth does not pass through its base.
What methods do engineers use to ensure structural safety?
One method used to ensure the safety of structures is visual inspection. Inspectors examine an existing structure for signs of weakness. These signs include cracks, warping, and rusting or corrosion of metal. Many everyday structures show these signs of weakness long before they fail, so the defects can be repaired.
What is an acceptable safety factor?
A usually applied Safety Factor is 1.5, but for pressurized fuselage it is 2.0, and for main landing gear structures it is often 1.25. In some cases it is impractical or impossible for a part to meet the “standard” design factor.
What are the general engineering principles of strength?
General Engineering Principles I Strength: • Stress = Force/Area (psi or Pa) • Strain = Elongation under stress =change in length/original length (in /in )length/original length (in./in.) • Ultimate Strength: maximu m stress sustained without breaking – exceed this limit and the material will break.
What are the basic concepts of stability of structure?
Basic Concepts of Stability of Structure 1 Stability criteria. It is necessary to establish stability criteria in order to answer the question of whether a structure is in stable equilibrium under a given set of loadings. 2 Stability concept. 3 Buckling vs. 4 Types of instability. 5 Instability failure.
What are the six principles of sustainable building design?
Six Fundamental Principles of Sustainable Building Design. 1 Optimize Site Potential. 2 Optimize Energy Use. 3 Protect and Conserve Water. 4 Optimize Building Space and Material Use. 5 Enhance Indoor Environmental Quality (IEQ) 6 Optimize Operational and Maintenance Practices.
What are the general engineering principles of alloys?
General Engineering Principles I Metals and Effect of Alloying Elements: Carbon: hardenability, strength, hardness, and wear resistance Nickel: strength and toughness; minor effect on hardenability Chromium: strength, toughness, hardness, and wear resistance, increases depth of hardness penetration in heat treatment