Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
  • Welcome
  • Products
  • Support
  • About
  • More
  • Cancel
AutoPIPE
  • Product Communities
  • More
AutoPIPE
AutoPIPE Wiki 01. How exactly is the snow load calculated for weight / Length in AutoPIPE?
    • Sign in
    • -Pipe and Vessel Stress Analysis - Wiki
      • +ADL PIPE
      • -Bentley AutoPIPE
        • ++Table Of Contents - AutoPIPE Wiki page
        • +- General Information about AutoPIPE
        • +-NEW User Guide - TIPs - FAQ AutoPIPE
        • +ATS, ITS, and Batch Processing - AutoPIPE
        • AutoPIPE QA&R program
        • Bentley AutoPIPE Basic User Accrediation
        • +Download - Install - Release Notes - AutoPIPE
        • +File / Model Management using AutoPIPE
        • +General - AutoPIPE
        • +Graphics - AutoPIPE
        • +Grids (Input & Results) - AutoPIPE
        • +Import and Export - AutoPIPE
        • +Known Issues in AutoPIPE (Enhancements, defects, etc..)
        • +Libraries - AutoPIPE
        • +License AutoPIPE -
        • -Loads and Load Sets - AutoPIPE
          • 01. Animate Load cases - AutoPIPE
          • 02a. Load Case Descriptions in AutoPIPE
          • +02b. Static Analysis in AutoPIPE
          • +02c. Dynamic Analysis in AutoPIPE
          • +02e. "Hydrotest" - AutoPIPE Load Case
          • +02f. "Static Earthquake" - AutoPIPE Load Case
          • +02g. "Wind" - AutoPIPE Load Case
          • -02h. "Snow Load" - AutoPIPE Load Case
            • 01. How exactly is the snow load calculated for weight / Length in AutoPIPE?
            • 02. How do I delete the snow load from an AutoPIPE model?
            • 03. Can Snow (SN) load-case be used in a User defined combination?
            • 04. Snow load cause "NAN" in AutoPIPE's output report, Why and how to fix it?
            • How to model Snow load (SN) for non-linear analysis?
          • 02i. "Thermal Bowing" - AutoPIPE Load Case
          • +02k. "Response / Force Spectrum Loads" - AutoPIPE Load Case
          • +02n. "Harmonic" - AutoPIPE Load case
          • 02p. "Time History" (M1-M50) - AutoPIPE Load Case
          • 02s. "Buoyancy" - AutoPIPE Load Case
          • +02t. "Wave" - AutoPIPE Load Case
          • +02u. "Fluid Transient" - AutoPIPE Load Case
          • 02v. "Steam Relief" - AutoPIPE Load Case
          • +02w. "Thermal Transient Analysis" (TTA) - AutoPIPE Load Case
          • +03a. "Gravity" - AutoPIPE Load Case
          • +03b. "Pressure" - AutoPIPE load case
          • 03c. "Temperature" - AutoPIPE load case
          • +03d. "SAM" (Seismic Anchor Analysis) - AutoPIPE load case
          • +03e. "Fatigue" - AutoPIPE load case
          • +03f. "Xtra Data" - AutoPIPE load case
          • +03g. "Occasional" - AutoPIPE load case
          • 03h. "Distributed Load" - AutoPIPE load case
          • 04. Results From Loads and Load Sets Not Answered By Piping Code Calculations
          • +05. Combination Load Cases (Tools> Combinations dialog)
          • +06. Non-linear Load Sequencing Explained
        • +Localization (Non-English Language) - AutoPIPE
        • +Modeling Approaches in AutoPIPE
        • +Modules (i.e. Flange Analysis, Spring Hanger Selection, Rotating Equip, TTA) in AutoPIPE
        • +Piping codes - AutoPIPE
        • +Post Processing - AutoPIPE
        • +Printing - AutoPIPE
        • +Reports - AutoPIPE
        • Security
        • +Settings - AutoPIPE
        • +Stress Isometrics - AutoPIPE
        • +Technology Productivity Capabilities
        • +Warnings, Errors, Crashed, Confirm, etc.. messages in AutoPIPE
        • +~ Technical Support - AutoPIPE
      • +Bentley AutoPIPE Nozzle (WinNOZL)
      • +Bentley AutoPIPE Vessel (powered by Microprotol)
      • +Bentley PlantFLOW
      • +Bentley PULS
    • Multi-lingual announcement from BENTLEY TECHNICAL SUPPORT.
    • Working at Home with AutoPIPE
    • +AutoPIPE Brand Learning Resources
    • +Attend a live meeting with an AutoPIPE Analyst

     
     Questions about this article, topic, or product? Click here. 

    01. How exactly is the snow load calculated for weight / Length in AutoPIPE?

    Applies To
    Product(s): AutoPIPE
    Version(s): ALL;
    Area: Modeling
    Original Author: Bentley Technical Support Group
    Date Logged
    & Current Version
    Sept. 2016
    10.01.00.09

    Problem:

    How exactly is the snow load calculated for weight / Length in AutoPIPE?

    Example: On the Snow Load dialog screen, how exactly is the snow load calculated for weight / Length  =  0.5 lbs/in for both a 2 inch dia pipe and 12 inch dia pipe that are both 1 ft long piece of pipe.

    Solution:

    For complete details on how snow load is calculated in AutoPIPE see following help sections:

    Help > Contents> Contents Tab>

    > Reference Information> Analysis Considerations> Snow Analysis> Overview

    > Command Reference> Loads Commands> Environmental Group> Snow

    To answer the question at hand, the answers would be identical because the pipe diameters are not considered. In this example, the user is entering the weight of snow per length of pipe that already considers  a pipe diameter or another words:

    Weight of snow for the 1 foot length of 2 inch dia pipe:

    (0.5 lbs / inch) * (12 inch) = 6 lbs of snow

    Weight of snow for the 1 foot length of 12 inch dia pipe:

    (0.5 lbs / inch) * (12 inch) = 6 lbs of snow

    Note:

    1. AutoPIPE currently only consider the horizontal component  of projected pipe area for snow loading. Another words,  as the vertical angle increases only the horizontal length component of the angle will be used to calculate the snow load. For piping on the vertical axis, the program will automatically remove snow load that has been applied.

    2. For dialog options Method = "Weight / Area" or "Density", the projected area is used in calculating the snow load; horizontal length component of the angle multiplied by the pipe's outer diameter.

    3. Snow loads, like wind loads, are not currently applied to beams. This is has been logged as an enhancement for a future version. 

    4. Currently, AutoPIPE V8i 09.06.01.xx and lower does not handle snow loading for non-linear analysis and is not accurately nor realistically applied to non-linear models. As a work around, apply uniformly distributed loads along the relevant segments with the expected linear forces and combine this distributed load with a wind case.

    See Also

    "Snow Load" - Load Case

    Bentley AutoPIPE

    • Load Case
    • AutoPIPE
    • Snow
    • Share
    • History
    • More
    • Cancel
    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Tue, Sep 20 2016 6:35 PM
    • Mike Dattilio Last revision by Bentley Colleague Mike Dattilio
    • When: Thu, Feb 28 2019 6:09 PM
    • Revisions: 2
    • Comments: 0
    Recommended
    Related
    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2021 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies