4.0 GENERAL STEEL ERECTION OF PRIMARY AND SECONDARY STRUCTURES
Many methods and procedures are in use for Steel building erecting the structural portion of metal buildings. The techniques of raising frames vary from erecting small clear spans and endwall frames in units to erecting the larger clear spans and modular frames in sections. The erection methods used depend strictly on the type of building, the available equipment, the experience level of the crews, and the individual job conditions.
The variation in these factors preclude the establishment of a firm or specific set of erection rules and procedures. Consequently, the General steel erection operation must be tailored by the erector to fit individual conditions and requirements. However, there are certain erection practices, pertaining to structural members, which are in general use and have proven sound over the years. Descriptions of these follow.
Erectors are cautioned not to cut primary members (rigid frame columns, rafters, end bearing frame rafters, interior columns). These are the primary support members for the frame and are designed as such. Any cutting of these members may affect the structural stability. A representative of Manufacturer should be consulted prior to attempting alterations of these members.
NOTE:
Do Not install any material if its quality is in question. Metal Building Manufacturer will not be responsible for costs incurred associated with the installation and/or removal of same.
NOTE:
In no case should steel building erection be started on green concrete. Anchor bolts may pull loose, concrete spall (chip out along edges) may occur and equipment may crush or crack slab. Normal Portland cement concrete should cure at least seven days and high-early-strength concrete at least three days before the structural columns are erected. Special circumstances may require even longer curing periods, consult the project engineer, not Metal Building Manufacturer on foundation questions.
IMPORTANT ERECTOR’S NOTE:
IN THE EVENT THAT A DISCREPANCY OR ERROR ARISES WITH MATERIALS SHIPPED FOR THIS PROJECT OR ON THESE ERECTION DRAWINGS, THE ERECTOR / INSTALLER MUST NOTIFY RIGID PRIOR TO CORRECTING. IF MANUFACTURER IS NOT NOTIFIED, GENERAL STEEL WILL NOT HONOR BACK-CHARGES BY ANY PARTY INVOLVED
