Types of column failure
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The document discusses the two main types of column failures: compression failure and buckling failure. Compression failure occurs when the axially loaded stress of a column exceeds its allowable stress. Buckling failure happens when a column's slenderness ratio is greater than 30, causing it to buckle under lateral loads. The document is intended to explain why columns fail and describe the types of column failures in terms of their causes and visual appearances.
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This document provides guidelines and best practices for reinforcing concrete structural members through proper detailing. It discusses the importance of detailing and provides recommendations for slab, beam, column and foundation detailing. Specific recommendations are given for beam-column joints, splices, openings and seismic detailing. Both correct and incorrect examples of structural detailing are shown to illustrate best practices. The document emphasizes designing reinforcement layouts that are constructible and provide adequate structural integrity.
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This document discusses reinforcement detailing of common reinforced concrete structural members. It provides guidelines on proper detailing of slabs, beams, columns, and foundations to ensure structural safety and code compliance. Specifically, it outlines detailing dos and don'ts, such as maintaining minimum reinforcement ratios, staggering splices, and using closed stirrups. It also shows correct and incorrect examples of detailing elements like beam-column joints, slab openings, and splices. The document emphasizes that detailing is essential for proper structural performance and safety.
RCC detailing presentation Bis code Is 456.ppt
This document provides guidelines and best practices for reinforcing concrete structural members through proper detailing. It discusses the importance of detailing and provides recommendations for slab, beam, column and foundation detailing. Specific recommendations are given for beam-column joints, splices, openings and seismic detailing. Both correct and incorrect examples of structural detailing are shown to illustrate best practices. The level of detail covered makes this a useful reference for reinforcement detailing of concrete structures.
download.ppt
This document provides guidelines and best practices for reinforcing concrete structural members through proper detailing. It discusses the importance of detailing and provides recommendations for slab, beam, column and foundation detailing. Specific recommendations are given for beam-column joints, splices, openings and seismic detailing. Both correct and incorrect examples of structural detailing are shown to illustrate best practices. The document emphasizes designing reinforcement layouts that are constructible and provide adequate structural integrity.
download.ppt
This document discusses reinforcement detailing of common reinforced concrete structural members. It provides guidelines on proper detailing practices and common mistakes to avoid. Specific detailing requirements are covered for slabs, beams, columns, foundations, and connections between members. The importance of detailing for structural safety and code compliance is emphasized. Examples of correct and incorrect reinforcement details are shown for various members. In conclusion, while many structural components are covered, some like flat slabs, folded plates, and retaining walls are not discussed in detail due to time constraints. The document serves as a reference for best practices in reinforcement detailing.
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1. The author proposes modifications to the roof bar (girder) design used for strata control in underground mines extracting thick seams via the blasting gallery method.
2. The existing roof bar design fails prematurely due to bending stresses, as support resistance from props is transferred to the roof bar rather than the roof.
3. The author's modified design places lagging directly above props to transfer support resistance to the roof, eliminating bending of the roof bar. The web thickness and dimensions are also increased to strengthen the roof bar against failure.
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Types of column failure
- 2. TYPES OF COLUMN FAILURES BY: SYED RAJA
- 3. WHY COLUMNS FAIL: We know, Columns are made up of two major materials concrete and steel. Architect do calculate total stress caused by dead load and live load on the entire building to design its internal components (Beam, Column, Slab etc.). So, if the applied stress exceeds the allowable stress then the structure start to fail.
- 4. TYPES OF COLUMN FAILURE COMPRESSION FAILURE BUCKLING FAILURE
- 5. 1. COMPRESSION FAILURE: when the axially loaded stress of a column exceeds its allowable stress then column start to fail. This type of failure is known as Compression failure. As shown in the picture….
- 7. 2. BUCKLING FAILURE: If the least lateral dimension of a column is grater than 12, and its slenderness ratio is grater than 30, then in such conditions columns start to buckling. This type of failure are known as Buckling failure. As, shown in the picture…
- 9. THE END