Session Start Date

5-6-1984

Abstract

The lift side anchor system for a 151 m span suspension bridge over river Alaknanda in Himalayan region was unstable. The gravity type anchor block for the suspension bridge was constructed by cutting the toe of the natural slope. Walls were constructed to retaining the backfill and the anchor block. Slips along the natural slope were frequent. The site lies in an active seismic zone.

The paper presents the details of analysis of anchor block, retaining walls and the natural slopes. The analysis is carried out both under static condition and also by taking seismic coefficients. The already constructed retaining walls which were unsafe have been strengthened by designing a composite retaining wall keeping in view the requirements of the client not to demolish any of the already constructed retaining wall.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

First Conference

Publisher

University of Missouri--Rolla

Publication Date

5-6-1984

Document Version

Final Version

Rights

© 1984 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 6th, 12:00 AM

Stability of Suspension Bridge Anchorage System

The lift side anchor system for a 151 m span suspension bridge over river Alaknanda in Himalayan region was unstable. The gravity type anchor block for the suspension bridge was constructed by cutting the toe of the natural slope. Walls were constructed to retaining the backfill and the anchor block. Slips along the natural slope were frequent. The site lies in an active seismic zone.

The paper presents the details of analysis of anchor block, retaining walls and the natural slopes. The analysis is carried out both under static condition and also by taking seismic coefficients. The already constructed retaining walls which were unsafe have been strengthened by designing a composite retaining wall keeping in view the requirements of the client not to demolish any of the already constructed retaining wall.