Structural Design Calculations. See Section 3.8,
Structural Design Calculations. DESIGN PROCEDURE
Structural Design Calculations a. Temporary shoring is defined by AREMA, Vol. 2, Ch. 8, Article 28.1.1, and is anticipated to be in service for not more than an 18-month period. Earth retention structures that are anticipated to be in service for more than 18 months shall be designed per AREMA as permanent structures.
Structural Design Calculations. A. Prepare structural design of wingwalls, headwalls, and special structures.
Structural Design Calculations. 27.1 Where the Architect/Consultant is appointed to provide structural designs and/or calculations this may be undertaken via sub-contract arrangement. The following items are specifically excluded from our service:
Structural Design Calculations. For storm sewers to be replaced, AECOM will design reinforced concrete pipe in accordance with ASCE Standard Installation Direct Design (SIDD) Standard Practice. AECOM will provide a minimum ASTM C76 class pipe to install on the plans. AECOM will prepare structural design of wingwalls, headwalls, and cast in place inlet junctions. Designs that are assumed to be required for structures are described below. Site 1 – No structural calculations will be performed. Site 2 – AECOM assumes the junction box will need to be designed for replacement as a cast-in-place structure. Site 3 – AECOM will use standard designs for the inlet replacement. No additional structural designs are required. Site 4 – AECOM will perform preliminary structural calculations to determine the thickness of liners using ASCE MOP 145 or modern concrete design theory as applicable based on the liner material proposed. The preliminary calculations will be used to evaluate the liners constructability, impact on hydraulic capacity, and develop formulas that will establish a minimum liner thickness for the Contractor to install. Site 5A –AECOM assumes that the existing four 72” CMPs will be replaced with a multi-cell RCB culvert. This also includes the replacement of the existing downstream and upstream wingwalls and headwalls. The structural design will follow the recommendations and design decisions presented in the Design Memorandum. For the Field Check Plans, AECOM will assume a standard configuration and request a KDOT standard design through the submittal of an RCB/RFB LRFD Design Request on KDOT’s KART website. For the Preliminary Plans, detailed structural analysis will be performed reflecting updated load and geometry requirements based on the comments received from the Field Check Plans review, survey data, and the findings from H&H and geotechnical analyses. Final selection of the RCB culvert will conform to the sizes and dimensions available in the KDOT standards. AECOM will perform bridge load rating analysis according to the City Public Works Department’s Bridge Asset Inventory Procedure, using the AASHTOWare Bridge Rating (BrR) software. Site 5B through Site 5E –AECOM assumes 1 junction box for Site 5D will require design for replacement as a cast in place structure. Other structures will use standard designs and are assumed to not require additional structural designs.
