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MIDASoft
By
March 06, 2019

Box culvert design as per AASHTO LRFD

Learn how to model, analyze, and design check reinforced concrete culvert bridge. Design new reinforced concrete culverts and extensions to existing culverts are subjected to either earth fill and/or highway vehicle loading in accordance with the AASHTO LRFD Bridge Design Specifications. Precast concrete box culvert will be used in this design tutorial.

Download Manual

Download model file

 

Manual Outline

  1. General
    1. Overview
    2. Structure Information
  2. Boundary Condition
    1. Boundary Condition
    2. Foundation on Sandy Soils
  3. Load
    1. Self-Weight
    2. Vertical Earth Pressure (EV)
    3. Horizontal Earth Pressure (EH)
    4. Water Pressure (WA)
    5. Design Vehicular Live Load (LL): HL-93
    6. Live Load Surcharge (LS)
  4. Design
    1. Limit States and Factors & Load Combination
    2. Strength Limit States
  5. Structure Design
    1. Design Locations
    2. Perform Design
    3. Flexure Strength
    4. Shear Strength
    5. Check Thrust
    6. Crack Control

 

Overview

Box culvert is a usually default buried structure type that serves a variety of purposes. It is typically used for conveying water and also frequently used for pedestrian or cattle underpasses. Box culvert can be provided in both ‘Precast Concrete Box Culvert’ and ‘Cast-In-Place Concrete Box Culverts’ form. Currently, most box culvert installations are provided in precast form due to the huge reduction of time for place production and construction.

Culvert

Design new reinforced concrete culverts and extensions to existing culverts subjected to either earth fill and/or highway vehicle loading in accordance with the AASHTO LRFD Bridge Design Specifications. Precast concrete box culvert will be used in this design tutorial.

Culvert 2

 

Structure InformationCulvert 3

Culvert 4

Culvert 5





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