Document Details

SolicitousOklahomaCity

Uploaded by SolicitousOklahomaCity

Tags

bridge rehabilitation infrastructure civil engineering rehabilitation of bridges

Summary

This document is a chapter from a manual on bridge rehabilitation. It provides details on various methods for rebuilding, rehabilitating, and strengthening bridges, including those made of various materials such as steel, timber, and stone.

Full Transcript

REHABILITATION OF BRIDGES CHAPTER - V REHABILITATION OF BRIDGES  %ULGJHVPD\UHTXLUHUHKDELOLWDWLRQRQDFFRXQWRIYDULRXV UHDVRQVDVXQGHU L 3K\VLFDOGLVWUHVV LL 9XOQHUDELOLW\RQK\GURORJLFDOFRQVLGHUDWLRQV...

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

Use Quizgecko on...
Browser
Browser