In this article we will discuss about:- 1. Meaning of Culvert 2. Types of Culvert 3. General Design Principle 4. Design. Meaning of Culvert: A small bridge may be of 3 to 4 spans with the length of span not more than 3 m is known as culvert. In case of highway where culverts are constructed to cross the small [...]
In this article we will discuss about the developments in the aeroelasticity of bridges. For over 100 years prior to the pivotal Tacoma Narrows bridge disaster of 1940 flexible bridges had been noticeably disturbed and some severely damaged by the wind. However, the late 1930's and early 1940's witnessed introduction of new consciousness and appreciation of what kinds of forces [...]
In this article we will discuss about:- 1. Introduction to Buffeting Theories on Long-Span Cable Supported Bridges 2. Refinement of Buffeting Theory 3. Buffeting Response Spectrum Method 4. Buffeting Response Analysis in Time Domain 5. Passive TMD Control of Buffeting 6. Conclusion. Introduction to Buffeting Theories on Long-Span Cable Supported Bridges: The wind-induced vibration of long-span cable supported bridges (cable-stayed [...]
In this article we will discuss about:- 1. Introduction to Buffeting Theories on Long-Span Cable Supported Bridges 2. Refinement of Buffeting Theory 3. Buffeting Response Spectrum Method 4. Buffeting Response Analysis in Time Domain 5. Passive TMD Control of Buffeting 6. Conclusion. Introduction to Buffeting Theories on Long-Span Cable Supported Bridges: The wind-induced vibration of long-span cable supported bridges (cable-stayed [...]
In this article we will discuss about:- 1. Introduction to Bridges 2. Types of Steel Bridges 3. Truss Components 4. Economic Span 5. Loads. Introduction to Bridges: Bridges are structures meant to support rail road traffic, highway traffic or pedestrian loads across openings or crossings or another set or rail or highway traffic or across any natural or artificial obstacles. [...]
All structures shall be designed for the following lateral wind forces. These forces shall be considered to act horizontally and in such a direction that the resultant stresses in the member under consideration are the maximum. The wind force on a structure shall be assumed as a horizontal force of the intensity specified in the following table and acting on [...]
A bridge is designed to allow slight movement at a support. Usually a provision is made so that movement of 1 mm can take place per 30 m. It is also necessary to make provision to allow for changes in length due to live load stresses. In spans over 90 m long it is necessary to make allowances for expansions [...]