Documents

40 pages
103 views

Introduction to Bridge Engineering.pptx

of 40
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Share
Description
Introduction to Bridge Engineering Prepared by: Niraj Bohara Based on TU syllabus Transportation Engineering II Definition ã A bridge is a structure providing passage over an obstacle without closing the way beneath. ã The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. ã The obstacle to be crossed may be a river, a road, railway or a valley. ã As per the definition provided by Nepal Bridge Standards 2067, “
Transcript
  Introduction to Bridge Engineering Prepared by:Niraj BoharaBased on TU syllabusTransportation Engineering II  Definition ã A bridge is a structure providing passage over an obstacle without closing the way beneath. ã The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. ã The obstacle to be crossed may be a river, a road, railway or a valley. ã As per the definition provided by Nepal Bridge Standards 2067, ã Whereas, NRS 2070 has described bridge as a cross drainage structures with length greater than 6m “ A structure that spans over body of water, a valley, or a road and affords passage for pedestrians, or vehicles of all kinds, or any combination thereof.”  Characteristics of an Ideal Bridge ã Shouldn’t obstruct stream and provide adequate waterway width ã Should be able to carry standard loading with reasonable factor of safety ã The line of bridge should not have serious deviation from the line of approach road ã It should be in level ã Width of bridge should be sufficient to cater future traffic ã Passage for services like water pipes, telephone lines etc ã Economical in terms of construction and maintenance ã Should be of sufficient height (to avoid from flood damage)  Selection of Bridge Site ã A straight reach of the river. ã Steady river flow without cross currents ã A narrow channel with firm banks ã Suitable high banks above high flood level on each side. ã Rock or other hard in-erodible strata close to the river bed level. ã Economical approaches ã There should be no sharp curves in the approaches ã Avoidance of excessive underwater construction.
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks
SAVE OUR EARTH

We need your sign to support Project to invent "SMART AND CONTROLLABLE REFLECTIVE BALLOONS" to cover the Sun and Save Our Earth.

More details...

Sign Now!

We are very appreciated for your Prompt Action!

x