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a metal or wood plate added to the surface of a joint to strenghten the connection

I Beam

a steel beam in the shape of an I


form an arch or curve


a stress that produces an elongation of an elastic physical body


the process or result of becoming smaller or pressed together


a projecting beam that is attached to a building at one end, but suspended in the air at the other

Dead Load

the weight of the structure itself


a tall cylindrical vertical upright and used to support a structure

Load Bearing

Wall that bears a load resting upon it by conducting its weight to a foundation structure.


a triangular bracket of brick or stone (usually of slight extent)

Cable Stay Bridge

is where a cables help support the weight of the structure

Square Set Timbering

a structure build entirely of cubes

Strength to Weight Ratio

a ratio of the amount of weight an object can hold and how much the structure weighs


act of twisting; stress due to twisting forces exerted on a body


the distance or interval between two points

Pratt Truss

truss where the angle of the triangles are facing one way toward the center and the other side of the bridge facing the opposite side

Warren Truss

they are creating and equal lateral triangles


force that produces strain on a physical body


A measure of deformation of a structure due to applied loads.

Dynamic vs Static Load

Dynamic load is the permanent load of the structure. The weight of the structure alone. Static load is the amounts of weight being added or subtracted to the structure. Like cars going on and off of a bridge.


a layered structure

Point of deformity

Where the structure starts to deform

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