SEISMIC ANALYSIS OF BRIDGES USING DISPLACEMENT-BASED APPROACH

By Chung C. Fu and Hamed AlAyed, University of Maryland

ABSTRACT
Nonlinear Static (Pushover) Procedure is specified in the guidelines for seismic rehabilitation of buildings presented by FEMA-273 (1997) as an analytical procedure that can be used in systematic rehabilitation of structures. However, those guidelines were presented to apply the Displacement Coefficient Method, which implements the well-known equal displacement rule with some modifications to esti ....etc

[:=Read Full Message Here=:]

Abstract:
This seminar is intended to evaluate the applicability of Nonlinear Static Procedure by implementing the Displacement Coefficient Method to bridges. For comparison purposes, the Nonlinear Dynamic Procedure (or nonlinear time-history analysis), which is considered to be the most accurate and reliable method of nonlinear seismic analysis, is also performed. A three-span bridge of 97.5 meters (320 ft) in total length was analyzed using both the Nonlinear Static Procedure/Displacement Coefficient Method and nonlinear time-history. Nine t ....etc

[:=Read Full Message Here=:]

ppt on repair and rehabilitation techniques

Introduction

The success of repair activity depends on the identification of the root cause of the deterioration of the concrete structures. If this cause is properly identified, satisfactory repairs can be done for the improvement of strength and durability, thus extending the life of the structure, is not difficult to achieve. General procedure in the repair of distressed concrete structure:

Support the structural members properly as required.
Remove all cracked, spalled and loose concrete.
....etc

[:=Read Full Message Here=:]

i need more information on The use of helical spring and fluid damper isolation systems for bridge structures subjected to vertical ground acceleration for a seminar. ....etc

[:=Read Full Message Here=:]

Plz upload a PPT or PDF regarding various methods of rehabilitation of RCC bridges ( relevant pics and videos would be good ) ....etc

[:=Read Full Message Here=:]

REPAIRS, REHABILITATION AND RETRO-FITTING
Significance of Ferrocement repairs
After, we in India, started manufacture of concrete in years 1930 s, the negative aspect of concrete started showing after sometime as below:-
- Deterioration due to poor workmanship, particularly high water content and corrosion of reinforcement and R.C.C. Technology being new.
- Leakages in concrete due to rain water as well as in water retaining structures
This menace become conspicuous after construction works which became old about 20 to 30 years. We star ....etc

[:=Read Full Message Here=:]

an adequate inspection and maintenance programme is required to reduce the cases of bridge and building collapses. There are some of the safety factors built into bridge designs. A comprehensive assessment programme must be put in place. The damaged bridges are classified as :at risk.
If the maintenance work is not done in time, deterioration will quicken and later the work cost will be more. The considerable part of the bridge maintenance budget must be set apart for the maintenance work to minimise this deterioration which will prevent fut ....etc

[:=Read Full Message Here=:]

Hi, i'm final year civil engg student.
I request you to send me a ppt on the above mentioned topic, as i am not finding enough material about the latest developments in this field.

....etc

[:=Read Full Message Here=:]

Techniques for Rehabilitation & Repair Of Structures

Introduction

The success of repair activity depends on the identification of the root cause of the deterioration of the concrete structures. If this cause is properly identified, satisfactory repairs can be done for the improvement of strength and durability, thus extending the life of the structure, is not difficult to achieve. General procedure in the repair of distressed concrete structure:

Support the structural members properly as required.
Remove all cracked, spalled and l ....etc

[:=Read Full Message Here=:]

I Syed Mujeeb Uddin student of masters in engineering {civil-Structures}.
i want a seminar power point presentation on Structural Failures, Repairs & Rehabilitation Techniques with a hard copy of microsoft word on it please..
i don't know any thing on this topic i.e. Structural Failures, Repairs & Rehabilitation Techniques.
i am expecting a very good presentation so that i can gain some knowledge on it . And also i have to give a seminar at my college. so please help me out.
please Email me the power point presentation and microsoft word c ....etc

[:=Read Full Message Here=:]