Structural Analysis-Truss Analysis
Two methods available for truss analysis: Method of joint – select a joint and identify the forces acting on it. Method of section – cut a sectio…
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Structural Analysis-Superposition
To ease the analysis of structure, principle of superposition is often used. It might be possible to break a complicated load case into several si…
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Statically Determinate Structure Info Sheet
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Structural Analysis-Determinate Structure
For statically determinate planar structure, reactions are calculated using three equations of equilibrium: Sum of forces and reactions in x and y …
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Structural Analysis-Stability
External stability of structure is established by support. It is essential to prevent the structure from moving. Lack of appropriate support agains…
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Structural Analysis-Determinacy
For planar frame, three restraints i.e. translation (vertical and lateral) and rotation are needed to hold each element in place. For planar truss,…
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Structural Analysis-Support
Structural elements need to be properly restrained/supported to ensure the load is effectively transferred to the structure’s base support - ground. …
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Structural Analysis-Loading
In real life, the load may vary from time to time. It sometimes varies with location as well. Load pattern is idealized based on its nature, simpli…
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Structural Analysis-Structure Types
Generally, structural elements consist of tie rod, beam and column. Tie rod is used to resist axial force while beam mainly resists bending and she…
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Structural Dynamics Info Sheet
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Structural Dynamics-Holzer Method
Holzer’s method estimates natural frequency of MDOF system by assuming it behaves like SDOF. Using portal method, shear force developed in column i…
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Structural Dynamics-Rayleigh Principle
Rayleigh’s principle estimates natural frequency of MDOF system under harmonic motion using principle of conservation of energy. No energy loss wil…
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Structural Dynamics-Fundamental Period
For MDOF system, the first mode of vibration is the most critical. All mass components are moving in the same direction and therefore, the top of s…
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Structural Dynamics-Control Systems
Natural frequency can be decreased by increasing mass, makes the structure a mass control system. Natural frequency can be increased by increasing …
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