Loading...
HomeMy WebLinkAboutEngineered Stairs - Smith 730 Sneed RoadHANDRAIL GRIP SIZE Ii -2i 21'— ^€• a ^a jF�� A. E RONCRCULAR CIRCULAR RECESSED PerYn ,4'-S. PMInMNr. ' *HANDRAIL HEIGHT, MEASURED VERTICALLY FROM THE SLOPED PLANE ADJOINING THE TREAD NOSING, OR FINISH SURFACE OF RAMP SLOPE, SHALL BE NOT LESS THAN 34 INCHES AND NOT MORE THAN 38 INCHES. *HANDRAIL SHALL BE PROVIDED ON AT LEAST ONE SIDE OF EACH CONTINUOUS RUN OF TREADS OF FLIGHT WITH FOUR OR MORE RISERS. *HANDRAIL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST A LOAD OF 50 PLF APPUED IN ANY DIRECTION AT THE TOP AND TO TRANSFER THIS LOAD THROUGH THE SUPPORTS TO THE STRUCTURE. *HANDRAILS FOR STAIRWAYS SHALL BE CONTINUOUS FOR THE FULL LENGTH OF THE FLIGHT, FROM A POINT DIRECTLY ABOVE THE TOP RISER OF THE FLIGHT TO A POINT DIRECTLY ABOVE THE LOWEST RISER OF THE FLIGHT. HANDRAIL ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL POSTS OR SAFETY TERMINALS HANDRAILS ADJACENT TO A WALL SHALL HAVE A SPACE OF NOT LESS THAN 1-1/2 INCHES BETWEEN THE WALL AND THE HANDRAILS. 2 X 2 BALLS MIN. (3) SIMPSON'S SIDS 1/4" X 4-1/2" — WOOD SCREWS FOR RIM JOIST TO POST CONNECTION, (5) 16d NAILS OR EQUIVALENT P.T. STEP LANDING FLOOR FASTENED TO HOST FLOOR MEMBERS USING SIMPON'S 1/4" X 3-1/2" SIDS WOOD SCREWS OR EQUIV. AT 12" O.C. STAGGERED SCREW PATTERN GUARD DETAIL 2X6 P.T. LANDING CONSTRUCTION 16" O.C. FLOOR JOISTS USING (5) 16d NAILS OR EQUIVALENT AT EACH JOIST TO RIM JOIST CONNECTION. OPENINGS SHALL NOT ALLOW 30" GROUND ANCHOR -� THE PASSAGE OF A 4' DIAMETER SPHERE W/ TIE DOWN STRAP 8 STRAP TO WRAP AROUND P.T. 2 X 6 TIGHTLY (DO NOT OVER TENSION STRAPS) OPENINGS SHALL NOT ALLOW (EACH SIDES OF LANDING) THE PASSAGE OF A 4" DIAMETER SPHERE NOTES: 1.) HANDRAIL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST A CONCENTRATED LOAD OF 200 POUNDS IN ACCORDANCE WITH SECTION 4.5.1 OF ASCE 7. 2) IMMEDIATE RAILS, BALUSTERS, AND PANEL FILLERS SHALL BE DESIGNED TO RESIST A CONCENTRATED LOAD OF 50 POUNDS IN 4CE NTH SECTION 4.5.1 OF ASCE 7. Digitally signed by Mark V Richter QjCh-Ceta Date:2020.06.02 ENGI N E E R I N G, I N C. 1 8: /1 'I : 'I 8- O /1 ' O O STAIR TREAD AND RISERS MAXIMUM RISER HEIGHT SHALL BE 7-3/4 INCHES. THE RISER 1LL BE MEASURED VERTICALLY BETWEEN LEADING EDGES OF THE IACENT TREADS. THE GREATEST RISER HEIGHT WITHIN ANY FLIGHT STAIRS SHALL NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH. :N RISERS ARE PERMITTED PROVIDED THAT THE OPENINGS LOCATED MORE IN 30 INCHES, AS MEASURED VERTICALLY, TO THE FLOOR OR GRADE DO NOT ;MIT THE PASSAGE OF A 4-INCH DIAMETER SPHERE. . MINIMUM TREAD DEPTH SHALL BE 10 INCHES. THE TREAD DEPTH SHALL BE \SURED HORIZONTALLY BETWEEN THE VERTICAL PLANES OF THE FOREMOST PROJECTION ADJACENT TREADS AND AT A RIGHT ANGLE TO THE TREAD'S LEADING EDGE. GREATEST TREAD DEPTH WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THE \LEEST BY MORE THAN 3/8 INCH. : RADIUS OF CURVATURE AT THE LEADING EDGE OF THE TREAD SHALL BE NO GREATER IN 9/16 INCH. A NOSING NOT LESS THAN 3/4 INCH BUT NOT MORE THAN 1-1/4 INCHE! 1LL BE PROVIDED ON STAIRWAYS WITH SOLID RISERS. A NOSING IS NOT REQUIRED WHERE : TREAD DEPTH IS A MINIMUM OF 11 INCHES. THE GUARDS MAYBE WOOD, ALUMINUM, VINYL, OR EQUIVALENT. �. o- X. .T. 5/4" X 6 BOARD RAIL CAP i-0' MAX OPENINGS SHALL NOT ALLOW THE PASSAGE OF A 4" DIAMETER SPHERE 3'-0" LANDING HEIGHT = 5 STEPS (MIN.) 4'-0" LANDING HEIGHT = 7 STEPS (MIN.) 2 X 4 TOP & BOTTOM ATTACHED TO 5'-0" LANDING HEIGHT = 8 STEPS (MIN.) TO POSTS WITH (2)#8 WOOD SCREWS ON INSIDE FACE. OPENINGS FOR REQUIRED GUARDS ON THE SIDE OF STAIR TREADS SHALL NOT ALLOW A SPHERE 4-3/8" TO PASS THROUGH. STAIR AND LANDING ILLUMINATION REQUIRED ATTACH BALUSTERS . W/ MIN. (1)#8 WOOD TSCREW ORB EQUIV. CONCRETE IS _ X CONCRETE OPTION: .T. 2X6 IF STEPS ARE INSTALLED ON EXISTING CONCRETE, THE GROUND ANCHORS AND TIEDOWN STRAP CAN BE OMITTED. THE P.T. 4 X 4 POSTS SHALL BE ANCHORED TO THE EXISTING CONCRETE SLAB USING SIMPSON'S L-BRACKET OR EQUIVALENT. MIN. UNIFORMLY DISTRIBUTED LIVE LOAD -STAIRS = 40 PSF (1) 2 X 6 P.T. ATTACHED TO POSTS USING (5) 16d NAILS OR EQUIVALENT AT EACH 2X6 TO POST CONNECTION. (3) 2 X 12 P.T. STAIR STRINGERS ATTACHED TO P.T. LANDING USING SIMPSON'S LSC ADJUSTABLE STAIR STRINGER OR EQUIV. 1/8" GALVANIZED CABLE COIL (7 X 7 OR 7 X 19 CONSTRUCTION) MAYBE USED INSTEAD OF THE 1-1/4" WIDTH TIE -DOWN STRAP NOTE: CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL DIMENSIONS AND CONDITIONS PRIOR TO CONSTRUCTION. ALL STAIR COMPONENTS TO BE PRESSURE TREATED LUMBER ALL FASTENERS IN CONTACT WITH P.T. LUMBER TO BE HOT DIP GALVANIZED OR STAINLESS STEEL THIS ITEM HAS BEEN ELECTRONICALLY SIGNED AND SEALED BY MARK V. RICHTER, P.E. USING A DIGITAL SIGNATURE. PRINTED COPIES OF THIS DOCUMENT ARE NOT CONSIDERED SIGNED AND SEALED AND THE SIGNATURE MUST BE VERIFIED ON ANY ELECTRONIC COPIES. 05-29-2020 SENYB ENGINEERING, LLC CA LIC. NO: 30244 These plans and specifications comply with Section 301.2.1 of Me 2017 FBC-Residential (6th Edition) V ULT -ULTIMATE DESIGN WIND SPEED = 170 MPH V ASD =NOMINAL DESIGN WIND SPEED = 132 MPH (TABLE 1609.3.1) (3 second gusts) 50 W. Central Ave., Ste. B Lake Wales, FL 33853 Office: 863-589-5980 Fax: 1-866-865-2044 �e�tl E 12 a mg 0 a `$" 91 amr A �y_Pt t H o 2 m (7 U J = c 8 = Q Z v;B�W X 4 4Wu Ug Z LL CRISIS Um 'z7 U n m m C O U 1J ~mm .. m ee - a ❑ [C U Q 0 Drawing Number: S2 STAIR CONSTRUCTION Sen`N Engmeering S" W W. Ceetml Ave. Lek, Wel, . FL 33853 © COPYRIGHT con