APPLICABLE CODES:

INTERNATIONAL BUILDING CODE (IBC) 2003 EDITION

DESIGN LOADS:

LIVE LOADS:      UNIFORM LOADING – SRTUCTURE = 100 PSF
UNIFORM LOADING – SEAT AND FOOT PLANKS = 120 PLS

SWAY LOADS:    PERPENDICULAR TO SEATS = 10 POUNDS PER LINEAL FOOT
PARALLEL TO SEATS = 24 PUNDS PER LINEAL FOOT

WIND LOADS:     BASIC DESIGN WIND SPEED = 150 MPH (EXPOSURE “B”)

RAIL LOADS:       UNIFORM VERTICAL LOAD = 100 POUNDS PER LINEAL FOOT
UNIFORM HORIZONTAL LOAD = 50 POUNDS PER LINEAL FOOT
CONCENTRATED HORIZONTAL LOAD = 200 LBS

NOTE: ALL BLEACHERS MUST BE ANCHORED TO MEET WIND LOADS SPECIFIED ABOVE.

GENREAL REQUIREMENTS:

  1. The site on which the bleacher is to be placed shall consist of a minimum soil bearing of 1,000 psf.
  2. The site shall be clear of all obstacles (ie. light poles, utilities, or other obstructions), unless special construction is specifically stated in the bid or quote.
  3. The surface may be sloped perpendicular to the seats (front to rear) but shall not exceed 2″ and parallel to the seats (end to end) but shall not exceed 4″. Variations in flatness shall not exceed 5/16″ below a 10 foot straight edge.
    Bleachers shall be anchored to resist overturning from wind forces and to be in compliance with many local codes.