The following beam weight spreadsheet has been developed for all the current Prestress Services Industries LLC (PSI) beam sections. These per linear foot beam weights are estimated based on the anticipated actual beam weight with regular weight concrete, adding a 4% safety factor and rounding upward to the nearest 5 pound increment.

The following sections from the PCI Design Handbook include interaction curves, load tables, and section properties for various precast concrete components. You can access tables from previous editions of the handbook as well as the current edition.

BEAM LENGTH – LENGTH OF BEAM IS LIMITED UP TO 30M IN CONSIDERATION OF TRANSPORTATION CONSTRAINT. BEAM WEIGHT – MAXIMUM 60 TONNES IS ABLE TO BE HANDLED IN FACTORY. HIGHER CONCRETE STRENGTH IS AVAILABLE UPON REQUEST. STACKING – BEAMS SHOULD BE STACKED WITH TIMBERS AT POSITION 500 MM …

Loads shown include 50% superimposed dead load and 50% live load. Top tension stress at. transfer has been allowed to exceed 6 fc ' ; therefore, top reinforcement is required. Loads can be significantly increased by use of structural composite topping. ' ; …

Check local area for availability of other sizes. Loads shown include 50% superimposed dead load and 50% live load. Top tension stress at trans- fer has been allowed to exceed 6 fc ' ; therefore, top reinforcement is required. Loads can be significantly increased by …

2017年2月24日 · Beam Shear Capacity Limited by #4 stirrups @ 6" O.C. NOTES: 1) Concrete Strengths: f' ci = 3500 psi, f' c = 9000 psi. 2) Strand: 270 ksi, Low Relaxtion, 1/2" Diameter. 3) Tabulated loads are based on U=1.2D+1.6L and with all load superimposed on the section considered as live load. 4) Stresses at release require top reinforcement in most cases.

2017年2月24日 · 5) Beam sizes can have either 8", 10", 12" or 16" ledges which are covered by the load table. 6) Section properties shown are based on 12" ledges both sides. 7) Values in shaded area are controlled by limitations of steel shear reinforcing. 8) Tabulated loads do not account for torsional loading of beam which may require more in-depth analysis.

2024年7月31日 · The following chart provides a general baseline for the maximum span lengths of prestressed spread box beams based off single span designs in accordance with LRFD, 9th Edition. The designs used for this chart use the maximum practical girder spacing (approximately 11’ …

Detailed example showing sample calculations for design of typical Interior AASHTO Type–IV prestressed concrete Beam supporting single span bridge. The design is based on AASHTO LRFD Bridge Design Specifications 3rd Edition 2004.

Check local area for availability of other sizes. Safe loads shown include 50% superimposed dead load and 50% live load. 800 psi top tension has been allowed, therefore, additional top reinforcement is required. Safe loads can be significantly increased by use of …