Examples of neurodegenerative diseases include Parkinsonâs, Alzheimerâs, and Huntingtonâs disease. Neurodegenerative diseases are incurable and debilitating conditions that result in progressive degeneration and / or death of nerve cells.
A concrete pier is a foundation element suitable for many types of structures but most commonly used for timber frame post and beam buildings. A concrete pier typically consists of a round or square concrete pillar supported at the bottom by a footer piece which serves to spread the load carried by the pier. The pier is placed or cast with the footer below the frost line and its top end above the ground surface.
Pier â a part of the substructure which. supports the superstructure at the end of. the span and which transfers loads on the. superstructure to the foundations. Traffic barrier. Parapet â low protective concrete. wall at edge of bridge deck. Railing â on top of parapet to. restrict lateral movement of traffic. Abutment â the part of the structure which. supports the superstructure at its extremities. and retains earthworks. Spill through abutment â an abutment which. allows fill to form a slope into the end span. rather than retaining it with a face wall. Deck â bridge floor directly. carrying traffic loads.