Laserfiche WebLink
• ` NaYrows Saloon <br /> , < , May S,2000 <br /> Page 2 of 2 <br /> STRUCTURAL ENGINEERING <br /> 1. A site visit was conducted by John H. Dahlmeier of J. H. Dahlmeier <br /> Engineering Inc. on May 3, 2000 to review existing conditions. <br /> 2. The layout and plan areas are shown on the conceptual layout for the <br /> Narrows Saloon. <br /> 3. Construction consists of exterior 12" concrete masonry load bearing walls and <br /> 12" concrete masonry foundation with store front windows. The roof system <br /> is wood decking on wood joists spanning east and west supported on beams <br /> and/or walls at 20 foot centers with built-up roofing. <br /> 4. An 8" concrete masonry wall exists 40 feet from the east wall. The owner <br /> wishes to remove this entire wall and replace it with a steel beam column <br /> system. <br /> 5. The structural engineering design for the wall replacement is: <br /> a. Shore existing structure as necessary. Protect structure from damage <br /> during construction. <br /> b. Prepare beam pocket at north and south walls. Install two #5 six feet <br /> long from load bearing down into wall. Fill with 2,500 psi grout. <br /> Expand grout fill to 2 feet wide top 2 feet of wall. <br /> c. Install bearing plates 7-1/2"x12"x5/8" thick on 1/2" grout pad. <br /> d. Remove wall at chimney. Prepare column bearing at center of <br /> chimney. Install four #5 in 16" width full height to footing. Fill with <br /> 2,500 psi grout. Grout solid 48" wide area, 32" deep at top of wall. <br /> Install 3-1/2" round standard weight column or 4"x4"x1/4" square tube <br /> with 7-1/2"x12"x5/8" base plate and standard top plate to accommodate <br /> beam. <br /> � e.� Prepare and in5iail t�cvo beam5 L�'16x31 (ASTM A36j, one spanning <br /> from rear to column behind chimney and second from column to front. <br /> Weld or bolt to bearing plates and column top plate. Install alignment <br /> plate 1/4"x4"x10" on both sides of web near top of beam at column. <br /> Weld one end each side only. <br /> f. Install 2"x6" wood plate on top of steel beam bolted @ 36" O.C. <br /> g. Nail e�sting roof joist to plate after alignment with four lOd toe nails <br /> each joist to plate. <br /> h. Repair any damaged items. <br /> 6. The foundation system has been reviewed and is structurally adequate to <br /> support these new concentrated loads based on load replacement and load <br /> redistribution. <br />