Crane Runway Beam Design Using CSA S16-14 Code

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About This Spreadsheet

This spreadsheet is for designing overhead bridge crane crane load and crane runway beam as per CSA S16-14 and AISC LRFD/ASD-2010 code

The spreadsheet is capable to design up to 2 cranes running in the same aisle at the same time.
For crane runway beam section, the user has option of
- CISC W or S section
- CISC W or S section combined with cap plate
- CISC W or S section combined with cap channel
- Any custom W or W and C combined section
The custom section option gives user great flexibility to select the crane runway beam section and optimize the design.
The spreadsheet also outputs the crane loads imposed on building column for user to relay to other structural analysis software for building structural analysis
The spreadsheet can design both top running and underhung overhead bridge crane runway beam

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No of Crane In The Same Aisle

The program is capable to design up to 2 cranes running in the same aisle at the same time.

User can choose the no of crane in one aisle here.

Crane Rated Capacity

The unit for this input is Metric Ton !

1 US Ton = 2000 pounds = 2.000 kips
1 Metric Ton = 2204 pounds = 2.204 kips

1 US Ton = 0.907 Metric Ton

If the crane capacity is in US Ton, multiply 0.907 to convert it to Metric Ton for input here.

If it's Underhung crane, the max. crane rated capacity is normally limited to 10 Metric Ton.

Bridge Crane Wheel Spacing d₁

d₁ is the bridge crane wheel spacing as shown below.

Bridge Crane Wheel Spacing d₂

d₂ is the bridge crane wheel spacing as shown below.

Bridge Crane Wheel Spacing d₃

d₃ is the bridge crane wheel spacing as shown below.

Crane Bridge Span S_r

Crane bridge span S_r as shown below.

Min. Hook Approach - Left Side

Min. hook approach - left side S_L

Min. Hook Approach - Right Side

Min. hook approach - right side S_R

Runway Center Line to Column Center Line
Distance - Left Side

e_L - runway center line to column center line distance - left side

Runway Center Line to Column Center Line
Distance - Right Side

e_L - runway center line to column center line distance - right side

Crane Column Center to Center Distance

Crane column center to center distance or building span
The program will calculate this field from user's other imputs as

Crane column c to c distance = S_r+ e_L + e_R

Runway Beam Section Type

W Shape With Cap Channel - AISC Table 1-19 Sect
Sections are only limited to sections listed in AISC Steel Construction Manual Table 1-19 .

W Shape With Cap Channel - Any W & C Sect Comb
Sections can be combinations of any W shape and C channel user selects from the list.

Runway Beam Custom Section Preliminary Check

This section check is only applicable when custom section is chosen.

The crane runway beam section shall be set in such a way that the top flange is wider and thicker than the bottom flange, but when doing this, users shall avoid the case like A₂ + A₃ < A₁ , where
A₁ = top flange area
when there is cap channel, A₁ = top flange area + channel section area
A₂ = bottom flange area A₃ = web area
When A₂ + A₃ < A₁ , the plastic neutral axis moves to top flange range and it's not recommended by the program.
The program will flag NG in this check when A₂ + A₃ < A₁ .
User can increase the bottom flange and web thickness to pass this section check.

CMAA Crane Service Class

CMAA 70-04 Specifications for Top Running Bridge and Gantry Type Multiple Girder Electric Overhead Traveling Cranes Page 10~11

Class A Standby or infrequent service
Class B Light service
Class C Moderate service
Class D Heavy service
Class E Severe service
Class F Continuous severe service

Most cranes are under Class C category.

The crane service class will impact the serviceability criteria in crane design.

AISC Design Guide 7: Industrial Buildings-Roofs to Anchor Rods 2nd Ed Page 56

Vertical deflection of crane beam due to wheel load (no impact)

CMAA 70 Classes A, B, C L/600
CMAA 70 Classes D L/800
CMAA 70 Classes E, F L/1000

Crane Type

Select Top Running or Underhung crane type here.

If Underhung type of crane is selected, the crane runway beam bottom flange local bending will be checked.

Suggest Values for User Input

Suggest values for user's input in magenta color.

User can use these suggest values as a reference for input when crane vendor data is not available.

User can turn the diaplay of these suggest values on/off using the menu above or mouse right click pop up menu.



CRANE RUNWAY BEAM DESIGN - CSA S16-14

Result Summary
Overall					ratio	=	0.83	OK

Design Code Reference
Crane runway beam design based on									Code Abbreviation
CSA S16-14 Design of Steel Structures									CSA S16-14
CISC Guide for the Design of Crane-Supporting Steel Structures 2nd Edition									CISC Crane Guide
AISC Design Guide 7: Industrial Buildings-Roofs to Anchor Rods 2nd Edition									AISC Design Guide 7
CMAA 70-04 Specifications for Top Running Bridge and Gantry Type Multiple Girder Electric Overhead Traveling Cranes									CMAA 70-04

Crane Data
Select design code		=
No of crane in the same aisle		=
No of wheel on one side of bridge		=



Crane rated capacity	W_rc	=		[Metric Ton]		=	178.1	[kN]
Bridge weight	W_br	=		[kg]	13442 kg	=	254.5	[kN]
Trolley + hoist weight	W_th	=		[kg]	1650 kg	=	47.2	[kN]
Bridge wheel spacing	d₁	=		[m]
Max. static wheel load by vendor	P_max-v	=		[kN]
Crane bridge span	S_r	=		[m]
Min. hook approach	left S_L	=		[m]	0.95 m
	right S_R	=		[m]	0.95 m
Runway CL to col CL distance	left e_L	=		[m]	0.50 m
	right e_R	=		[m]	0.50 m
Crane runway beam span	L₁	=		[m]
Crane column CL to CL distance	S_r + 2e	=		[m]

Runway Beam
Runway beam section type		=
W and C comb section size		=

W690x125 + C380x50 Weight : 175 kg/m bf-w =253.0 d-w =678.0 tw-w =11.7 tf-w =16.3 bf-c =86.0 d-c =381.0 tw-c =10.2 tf-c =16.5 d-wc =688.2
All section dimensions are in [mm]

Crane running type		=

Crane rail size		=			U_cr	=	60	[lbs/yd]
						=	0.29	[kN/m]
Rail base width	B_w	=	108	[mm]	Rail height H_t	=	108	[mm]

W section yield strength	f_wy	=		[MPa]
Cap channel or plate yield strength	f_cy	=		[MPa]
CMAA crane service class		=			moderate service

Vertical load impact factor		=
Crane side thrust load option		=
Crane side thrust load can be calculated using one of the following 3 options
Option 1	Hs	=		0.2 (Lifted Load+ Trolley/Hoist Wt)

Option 2	Hs	=	max of	0.2 (Lifted Load+ Trolley/Hoist Wt)
				0.1 (Lifted Load+ Entire Crane Wt)

Option 3	Hs	=	max of	0.2 (Lifted Load+ Trolley/Hoist Wt)
				0.1 (Lifted Load+ Entire Crane Wt)
				0.4 Lifted Load


Conclusion

Crane Runway Beam Design - CSA S16-14

Crane Load Calculation									View Detail Calc



Overall					ratio	=	0.83	OK	View Detail Calc


Local buckling								OK
Find L_yr by setting M_u=M_yr	L_yr value found							OK	CSA S16-14 13.6 e) i)
Bending about the X-X axis					ratio	=	0.60	OK
Bending about the Y-Y axis in the top flange					ratio	=	0.14	OK
Biaxial bending in the top flange					ratio	=	0.75	OK
Shear along Y-Y axis					ratio	=	0.25	OK
Web sidesway buckling					ratio	=	0.64	OK

Runway beam vertical deflection					ratio	=	0.83	OK
Runway beam lateral deflection					ratio	=	0.41	OK