TEMPLE CHANDELIER HOIST SUPPORT SYSTEMBYU CapstoneNick Barnwell, Andrew Marshall, Matt StewardApril 15, 2014

COMPONENTS

HOIST

SAFETY STRAP

ELECTRICAL REEL

PULLEYS

CONFIGURATIONS

STRUCTURAL SUPPORT

ONE WAY

TWO WAY

THREE WAY

SPATIAL AND DESIGN REQUIREMENTS

ONE WAY PULLEY, BOTTOM MOUNTED

ONE WAY PULLEY

TWO WAY PULLEY, BOTTOM MOUNTED

TWO WAY PULLEY

THREE WAY PULLEY, TOP MOUNTED (FRONT)

THREE WAY PULLEY, TOP MOUNTED (SIDE)

THREE WAY PULLEY (FRONT)

THREE WAY PULLEY (SIDE)

ELECTRICAL TAKE-UP REEL

HOIST

SAFETY STRAP

CABLES AND STRAPS

HOIST-PULLEY DISTANCE REQUIREMENTSDepending on how far the chandelier needs to drop will determine the required minimum distance between the hoist and the first pulley.

As a rule of thumb, if the distance is greater than or equal to 10 feet the distance requirement will always be met. If a shorter distance is desired calculations* will need to be done to find the minimum distance allowable.

*Example calculations in the appendix of the hand out

STRUCTURAL SUPPORT DESIGN

DYNAMIC LOAD FACTOR Case 1 Chandelier 1000 lb Case 2 Chandelier 2000 lb

Dynamic Load Factor* 3.5Dynamic Load (1000 lb) 3500 lbDynamic Load (2000 lb) 7000 lb

*Dynamic Load Factor calculations in the appendix of the hand out

PLATE DESIGN• The mounting plate was designed for worst case scenarios and

against all expected failure modes. • A minimum required thickness was determined from these

calculations* and rounded up to 0.5”. • The plate width and length may be adjusted according to which

system components will be attached to it. • The chandelier hoist, electrical reel, and safety strap will all

fit on a 3’ x 3’ plate.

*Plate design calculations in the appendix of the hand out

Load [lb] Direction of Load1000 Parallel1000 Perpendicular2000 Parallel2000 Perpendicular

Pulley Design Hoist Design Safety Strap DesignW8X10 W8X10 W8X10W8X21 W8X13 W8X21W8X15 W8X10 W8X10W8X28 W8X18 W8X28

Recommended Beam Sizes Based on Purpose

BEAM DESIGN

*Beam design calculations in the appendix of the hand out

THANK YOU