CMC Steel Products Non-Composite Castellated Beam Design ProgramINTRODUCTION: NOMENCLATUREThis program will assist in sizing simply supported, castellated beams with point and uniformly distributed loads.

STEPS:1. Enter job name and design mark (not required).2. Enter span, unbraced length, material strength and conx. type.

3. Enter loading. Program allows (1) uniform live load, (1) uniform dead load, and (4) point loads. Note, beam wt. is included.

4. Press Stnd. Geom. button. This enters the standard castellation pattern corresponding to the given wide flange.

OPTIMIZATION:Three modes of failure and their corresponding interaction values are shown in the results section. All values mustbe less than or equal to 1.0 for the beam to be ok. Press the "Find lightest shape" button to have the program selectthe lightest shape with standard castellation geometry. Significant strength changes can be achieved by modifyingthe castellation pattern. The following guidelines will help the optimization process. 1. To increase shear or web post strength, increase "e". 2. To increase bending strength, decrease "e". 3. If point loads are a significant portion of the load, increase "dt".

CONSTRUCTION BRIDGING:

Construction bridging is required for castellated beams that spans longer than the maximum bridging spacing. VARIABLESMaximum bridging spacing is controlled by connection type at end of beam. d = depth of root beamOSHA requires construction bridging to be installed to meet the following loading conditions: bf = flange width 1. A 300 lb. Man @ midspan - requires bolted X-bridging to be installed before hoisting cables are removed. tf = flange thickness

2. One 4000 lb. Bundle of deck to be placed over three beams no further than 1 ft from the end of the beam - tw = web thickness

requires horizontal bridging to be in place before deck bundles are placed. e = web post width & tee length

WARNINGS: b = width of sloped portion 1. "e<emin" - e must be at least 3" to provide end conx. material. dt = tee depth 2. "dt<dtmin" - dt must be greater than dtmin for fabrication reasons. dg = castellated beam depth 3. "e/tw>30", "2h/e>8", "Phi>62", "Phi<43" - research on web post buckling is valid only within these limitations. ho = height of hole 4. "Top tee slender" or "Bottom tee slender" - allowable stress on tee section is reduced per Qs. This will not wo = width of hole cause error in program.

CMC Steel Products2305 Ridge RoadSuite 202Rockwall, TX 75089800-308-9925

All areas in shaded yellow require information to be input. Contact CMC Steel Products toll free at (877) 764-2326for further information or assistance.

The information presented in this publication and design software has been prepared in accordance with recognized engineering principles, in conformity with the AISC Specification for Strucural Steel in Buildings (ASD,1989) and is for general information only. while it is believed that all data and information furnished is accurate , no person, corporation, association, or other entity involved in the preparation of this publication represents or warrants that this information is fit or suitable for any general or particular use or purpose, or assumes any responsibility in this information. This information must be used in conjuction with sound engineering judgment and is intended to be used only by competent structural engineers, architects or other licensed professionals. www.cmcsteelproducts.com

Non-Composite Castellated SmartBeam Design Program PRODUCTS

BEAM INFORMATION LOADING INFORMATION EXPAND'D. SXN. PROP'S

Job Name: Sample Project Uniform Distributed Loads Anet 16.908 in^2

Beam Mark # CB1 Live Load 800 plf Agross 27.380 in^2

Span 54.000 ft Dead Load 800 plf Ix net 4774.037 in^4

Unbraced Length 5.000 ft Concentrated Point Loads Ix gross 5268.3 in^4

Mat. Strength-Fy 50 ksi Load # Magnitude Dist from Perc. DL Sx net 266.706 in^3(#) (kips) Lft. End (ft) (%) Sx gross 294.321 in^3

P1 0.00 0.00 0% rx net 16.803 in

Castellated Beam W24X76 P2 0.00 0.00 0% rx gross 13.871 inRoot beam W24X76 P3 0.00 0.00 0% Iy 82.420 in^4d 23.9 in P4 0.00 0.00 0% Sy 18.336 in^3bf 8.99 in RESULTS ry 2.208 intf 0.68 in Failure Mode Interaction Status rT 2.444 in

tw 0.44 in Bending 0.985 <=1.0 OK!! deffec 33.459 inCastellation Parameters: Shear 0.567 <=1.0 OK!! CONSTRUCTION BRIDGING

e 7.500 in Web Post 0.659 <=1.0 OK!! End Connection type

b 6.500 in Overall 0.985 <=1.0 OK!! Min No. Of Bridging Rows 1

dt 6.000 in Live Load Deflection 1.189'' =L/545 Max. Bridging. Spacing (ft) 44

S 28.000 in Dead Load Deflection 1.302'' =L/498 MAXIMUM PASSABLE DUCTS

dg 35.800 in WARNINGS

phi 61.356 deg 17.491 9.750 18.265

ho 23.800 in

wo 20.500 in

Round (Diam.(in)

RECTANGULAR Width (in) x Height (in)