Ariston Pacific, Inc. 5/9/2016 - Laserfiche WebLink

1 1 primer conforming to Section 9-08.1(2)F. Keyways shall be filled with grout 2 conforming to Section 6-02.3(25)0. 3 4 7-02.3(6)C Precast Reinf. Conc. Box Culverts (PRCBC) and Precast Reinf. 5 Conc. Split Box Culverts (PRCSBC) 6 7-02.3(6)C1 Casting 7 PRCSBC shall consist of lid elements and "U" shaped base elements. The 8 vertical legs of the "U" shaped base elements shall be full height matching the 9 rise of the culvert, except as otherwise specified for culvert spans greater than 10 20-feet. For PRCSBC spans greater than 20-feet (as defined in Section 7- 11 02.3(6)A1), the lid elements may include vertical legs of a maximum length of 12 4-feet, provided the legs of the base and top units are connected in 13 accordance with Section 7-02.3(6)C3. 14 15 The joints of the "U" shaped base elements and the lid elements shall be 16 staggered such that the lid element joints occur between quarter-points of the 17 base element. 18 I 19 When the top unit includes vertical legs, the legs of the base and top units 20 shall be connected by weld-tie anchors in accordance with Section 6- 21 02.3(25)0. The weld-tie anchor spacing shall not exceed 6'-0". 22 23 7-02.3(6)C2 Finishing 24 The following information shall be legibly and permanently marked on one 25 inside face of each PRCBC element, or one inside face of each PRCSBC "U" 26 shaped base element by indentation, waterproof paint, or other means 27 acceptable to the Engineer: 28 29 1. Box section span and rise dimensions, minimum and maximum 30 design earth cover dimensions, and vehicular live load for design 31 (HL-93). 32 33 2. WSDOT Contract Number and date of fabrication. 34 35 3. Name or trademark of the fabricator. 36 37 7-02.3(6)C3 Erection 38 PRCBC and PRCSBC shall be erected and backfilled in accordance with the 39 erection sequence specified in the Working Drawing submittal, and the 40 construction equipment restrictions specified in Section 6-02.3(25)0. 41 42 Elastomeric gaskets shall be installed at all joints between precast elements 43 (except weld-tie connected joints), and shall be in full contact with both precast 44 elements at the joint prior to the remainder of the joint being completely filled 45 with grout. 46 47 When the top unit of a PRCSBC includes vertical legs, the legs of the base 48 and top units shall be connected by welding the weld-tie anchors in 49 accordance with Section 6-02.3(25)0. After connecting the weld-tie anchors, 50 the Contractor shall paint the exposed metal surfaces with one coat of field 51 primer conforming to Section 9-08.1(2)F. Keyways shall be filled with grout 52 conforming to Section 6-02.3(25)0. I AMENDMENTS TO THE 2014 STANDARD SPECIFICATIONS BOOK , Revised: 8/3/15