Example for beam flexure design, Civil Engineering

Assignment Help:

Example for Beam Flexure Design

Select the lightest W section for the simply supported beam shown below.  The beam length is 12ft.  The nominal loading is: wd = 4.0 kip/ft (including beam weight) and wl = 8.5 kip/ft.  Use grade 50 steel and assume lateral bracing is provided only at the ends of the section.

1823_Example for beam flexure design.png

Solution:

Load Factors are: 1.2 for dead load and 1.6 for live load as per ASCE 7 specifications (these are also shown in the concrete portion of the provided manual).

Wtotal = 1.2*4.0 kip/ft + 1.6*8.5 kip/ft = 18.4 kip/ft

L = 12 ft

Mu = WL2 / 8 = 18.4 kip/ft * (12 ft) 2 / 8 = 331.2 kip*ft

φMn = 331.2 kip*ft

Enter the chart with the moment needed and the unbraced length as shown below:

φMn =331.2, Lb = 12'

Answer : W18x55


Related Discussions:- Example for beam flexure design

HIGHWAY CONSTRUCTION & MAINTENANCE, what is the difference between feasibil...

what is the difference between feasibility study and traffic counting

Show the continuous piezocone penetration test, Q. Show the Continuous Piez...

Q. Show the Continuous Piezocone Penetration Test? Continuous piezocone penetration test essentiallycomprises standard cone penetration test and a measurement of pore water pre

Proctor test for GSB material, what is the procedure for gsb proctor test f...

what is the procedure for gsb proctor test for matrial sampling for lab density

Explain subcritical flow and supercritical flow, Explain Subcritical flow a...

Explain Subcritical flow and Supercritical flow Subcritical flow: The depth of flow is greater than critical depth and the velocity of the fluid is slow. Also termed "tranquil"

Bridge abutment be placed under an embankment, Question It should be necess...

Question It should be necessary that raking piles of a bridge abutment be placed under an embankment ? Answer For a bridge abutment to be supported on raking piles with dive

Determine the station number - transportation, The local survey crew measur...

The local survey crew measures a distance of 1,135 ft of new drainage pipe that is required for the new road construction. The beginning point for the drainage is located at statio

Whole barings, Ask question #Minexaple of wholeiwhole baring 100 words acce...

Ask question #Minexaple of wholeiwhole baring 100 words accepted#

Calculate dead, A building cross section is shown below. The building consi...

A building cross section is shown below. The building consists of eight (8) of the shown frames placed at distance of 20 feet oc for a total length of 140 feet. The glulam beams ar

#titlemichelson interferometer.., Describ the construction and working of M...

Describ the construction and working of Michelson interferometer and discuss tha method to determine wavelength of monochromatic

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd