What is abutment in bridge construction?
A bridge abutment is a structure which connects the deck of a bridge to the ground, at the ends of a bridge span, helping support its weight both horizontally and vertically.
What are the five components of a bridge abutment?
Parts of A Bridge
- Abutments.
- Piers.
- Bearing.
- Arch & Cables.
- Parapet Wall and Handrail.
- Flooring.
- Approaches.
- Guard Stones.
What is a bridge methodology?
BRIDGE uses a methodology based on participatory adult learning principles combined with a distinctive values-based approach centred on specific electoral principles.
What is abutment in building construction?
Abutments support the ends of the bridge and transfer the loads from the superstructure into the ground. The abutments also support the bearing devices and the backwalls. Abutments are usually constructed of concrete.
What are the functions of abutment?
Functions of Abutments Load transmission from a superstructure to its foundation components. Self-weight, lateral loads (such as earth pressure), and wind loads must be resisted or transmitted. To provide support for one edge of an approach slab.
What are the 3 main parts of a bridge?
The main components of a bridge are the foundation, substructure, and the superstructure.
What is a bridge in construction terms?
• A bridge is a structure which is built over some physical obstacle such as a body of water, valley, or road, and its purpose is to provide crossing over that obstacle.
What is a bridge construction?
Mechanized bridge construction is based on the use of specialized erection equipment. Beam launchers are used to erect precast beams. Self-launching gantries and lifting frames are used to erect precast segmental bridges.
What is an abutment on a bridge?
A bridge’s abutment is a support structure used to distribute weight and connect it to an embankment. This lesson introduces the component parts, the four primary types, and six additional classifications used to further define the abutments.
What does DC mean in bridge abutment design?
Bridge Abutment Design March 17, 2015 Page 3 LOADS • Superstructure dead load (DC) – Divide dead load reaction by length of abutment not including turned back wingwalls. • Superstructure live loads (LL) – Due to load sharing characteristics of a solid wall, do not use live load beam end reactions.
How much pile embedment do I need for a bridge abutment?
• Use free-head analysis for typical pile embedment of 6 inches. • Resistance is based on the amount of tolerable movement. Bridge Abutment Design March 17, 2015 Page 42
Do not use live load beam end reactions for bridge abutments?
– Due to load sharing characteristics of a solid wall, do not use live load beam end reactions. – Divide live load reaction by length of abutment not including turned back wingwalls. • Wall dead load (DC) • Backfill over heel (EV) • Horizontal earth pressure (EH) – Could have a horizontal and vertical component for β≠0. Bridge Abutment Design