CCD237-Structural Steel

Lecture 11

used to provide an overall picture of a job for sales, marketing, estimating, and or
engineering purposes

engineering drawing

what do engineer drawings show?

location of major structural components

basic dimensions

typical sections

clarification of complex design

contain much detail. used for designing, fabricating and erecting the structural products that go into a job

shop drawings

what do shop drawings show?

precise connection details

fabrication details for every structural member in a job

details of miscellaneous connections

bills of material

engineering and shop drawings come together into one set to form what kind of drawings?

working drawings 

what do working drawings tell us?

it tells us all that needs to be known for making a structure

what are two types of beams?

simple beam and cantilever beam

what type of beam rests on a support at each end with the beam ends being free to rotate

simple beam

what type of beam projects beyond its support

cantilever beam

what are two types of loads that are supported by a beam

concentrated load and distributed load

what is a concentrated load?

a load that acts on one point

what is a distributed load?

it is a load that extends over a substantial portion or the entire length of a beam

what is a dead load?

a load that remains constant after they are applied

what are some examples of dead loads?

weight of beam

walls

partitions

floors

What are examples of live loads?

people in the building or equipment stored in the structure

what is a KIP?

a unit of weight equal to 1000 pounds used to express deadweight load

what are forces acting at the supports?

reactions