A SEMINAR PRESENTATION

ON

“BRIDGE CONSTRUCTION”

Submitted By:Robin Nirwal+6

Submitted To:

Bridge

.

History of Bridge Development

History of Bridge Development

1900

1920

2000

Compression Tension

Basic Concepts

Span - the distance between two bridge supports, whether they are columns, towers or the wall of a canyon.

Compression –

Tension -

Force -

Concrete has good compressive strength, but extremely weak tensile strength. What about steel cables?

Basic Concepts

Beam - a rigid, usually horizontal, structural element

Pier - a vertical supporting structure, such as a pillar

Cantilever - a projecting structure supported only at one end, like a shelf bracket or a diving board

Beam

Pier

Load - weight on a structure

Survey of Bridge

.

SHALLOW FOUNDATIONThere are variety of shallow foundation types used in construction of foundationColumns$ Combined or Cantilevered$ Mat$ Wall (strip)$ Spread Footing$ Strap Footing

Pile Foundation

END BEARING PILES

FRICTION PILES

COMPACTION PILES

TENSION PILES

ANCHOR PILES

FENDER PILES

TYPES OF PILE CHOSEN DEPENDS ON FOLLOWING FACTORS

TYPES OF WELL FOUNDATION OR CASSION

METHOD OF INSTALLATION

.

Diesel Hammer

Vibratory Method Of Pile Driving

Jacking Method of Insertion

PRECAST SEGMENTAL ERECTION TECHNIQUES

ERECTION ON FALSEWORK

ERECTION BY GANTRY

ERECTION BY CRANE

ERECTION BY LIFTING FRAME

FULL SPAN PRECAST ERECTION TECHNIQUES