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Garage Repair 1180 Loma Linda Lane , <br /> STRUCTURAL NOTES <br /> MATERIAL STRENGTHS <br /> Reinforcing Steel <br /> Bars, ASTM A775 or A934, Gr.60, Fy=60 ksi <br /> (touch up with epoxy rebar spray pairrt prior to concreting) <br /> Rebar chairs to be plastic. <br /> Rebar tie wire to be epoxy coated. <br /> Concrete <br /> f'c=compressive strength in 28 days <br /> 4,000 psi air errtrained at 4 to 6 percent <br /> Structural Lumber <br /> All dimensional lumber-#2 SPF (Spruce Pine Fir) or equal <br /> (unless noted otherwise) <br /> DESIGN LOADS <br /> Floors <br /> Garage Floor Live Loads <br /> Typical 50 psf <br /> [Or] 2000 pound load over any 20 square inch area <br /> EXISTING CONDITIONS <br /> Contractor shall verify all dimensions, elevations, and details of existing structure where <br /> they affect this construction prior to fabrication. <br /> TEMPORARY BRACING <br /> Contractor is responsible for bracing,without overstressing, all structural elements as <br /> required at all stages of construction until completion of this project. <br /> Use caution when operating equipment adjacent to foundation walls. <br /> DIMENSION LUMBER <br /> All lumber shall be of good quality and not have large splits and checks and shall be <br /> visually inspected by the contractor at the time of construction. <br /> POURED CONCRETE <br /> Concrete shall not be laid when the temperatures of the outside air is below 40°F, <br /> unless approved methods are used during construction to prevent damage to the <br /> concrete. <br /> OPENINGS <br /> Verify size and location of all openings with architectural and mechanical. Openings in <br /> floor and roof not shown on structural drawings must be placed between <br /> structural members. Cutting and notching which exceeds the limits of the information <br /> provided on the structural drawings must be approved by the structural engineer. <br /> SUGGESTED PROCEDURE <br /> The following contains the major steps of a basic procedure that was coordinated with <br /> the General Contractor regarding the 64"wide strip replacement. Alternate procedures <br /> are acceptable provided they do not overstress the structure during construction and <br /> result in the same finished condition. <br /> 1) Remove the loose material from the bottom of the supported masonry block slab. <br /> 2) Install the concrete formwork from the bottom of the block slab including plywood and <br /> dimensional lumber shoring. <br /> 3) Sawcut and remove of the 64"wide strip working from the top of the sfab. <br /> 4) Finish installing formwork and then install the waterstop and rebar. Take photos and <br /> email to structural engineer for review prior to casting concrete. <br /> 5) Touch up epoxy coated rebar with spray paint and coat the forms with form release <br /> agent. Do not coat epoxy coated rebar with form release agent. <br /> 6) Cast concrete using proper concrete vibration procedures and finish to match <br /> existing slab. <br /> 7) After concrete has cured, remove formwork, grind fins, and complete patching <br /> operations. <br /> 20APR2012 PROJECT: 12025 Page 1 of 1 <br />