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

I 1 WSDOT Bridge Design Manual LRFD (M23-50) Section 13. Soil pressures I 2 used shall include effects from the backfill material and compaction methods, 3 and shall be in accordance with the WSDOT Geotechnical Design Manual 4 (M46-03) and the geotechnical report prepared for the project. 5 I6 7-02.3(6)A3 Casting 7 Concrete shall conform to Section 6-02.3(28)B, with a 28-day compressive 8 strength as specified in the Working Drawings submittal. I9 10 7-02.3(6)A4 Excavation and Bedding Preparation 11 All excavated material shall be disposed of in accordance with Section 2- I 12 09.3(1)D. 13 14 If water is present within the excavation, the Contractor shall dewater the 1 15 excavated area in accordance with the dewatering plan Working Drawing 16 submittal before placing the bedding material. 17 I 18 The bedding for the precast Structure, consisting of the backfill elements 19 shown in the Plans, shall be placed and compacted in accordance with Section 20 7-08.3(1)C. 21 1 22 7-02.3(6)B Precast Reinf. Conc. Three Sided Structures (PRCTSS) 23 7-02.3(6)B1 Design Criteria 24 In addition to the design criteria specified in Section 7-02.3(6)A1, the following I 25 shall apply. 26 27 PRCTSS shall be precast rigid frames with monolithic upper corners internally I 28 reinforced for moment and shear resistance, except as otherwise noted. 29 Connecting separate and individually precast concrete panels together to form 30 the specified three sided frame geometry is acceptable provided the Structure I31 system provides moment and shear resistance from the lateral load from 32 backfill placed full width and full height at one side only of the PRCTSS. 33 I 34 7-02.3(6)62 Finishing 35 The Contractor shall mark the following information, using waterproof paint, on 36 the inside of a vertical leg of each precast section of the Structure: 37 I 38 1. PRCTSS span and rise dimensions, minimum and maximum design 39 earth cover dimensions, and vehicular live load for design (HL-93). 40 I 41 2. WSDOT Contract Number and date of fabrication. 42 43 3. Name or trademark of the fabricator. I 44 45 7-02.3(6)63 Erection 46 PRCTSS shall be erected and backfilled in accordance with the erection I 47 sequence specified in the processed Working Drawings, and the construction 48 equipment restrictions specified in Section 6-02.3(25)0. 49 50 Adjacent precast sections shall be connected by welding the weld-tie anchors 51 in accordance with Section 6-02.3(25)0. After connecting the weld-tie anchors, 52 the Contractor shall paint the exposed metal surfaces with one coat of field I I AMENDMENTS TO THE 2014 STANDARD SPECIFICATIONS BOOK Revised: 8/3/15