Design Development of Large Thermoplastic Chambers for Stormwater Retention

    Volume 7, Issue 6 (June 2010)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 29 June 2010

    Page Count: 12


    Bass, Brent J.
    Staff II, Structures, Simpson Gumpertz & Heger, Inc., Waltham, MA

    McGrath, Timothy J.
    Senior Principal, Simpson Gumpertz & Heger, Inc., Waltham, MA

    Mailhot, David
    P.E., National Engineering Manager, StormTech LLC, Weathersfield, CT

    Lim, Keng-Wit
    Staff II, Structures, Simpson Gumpertz & Heger, Inc., Waltham, MA

    (Received 10 November 2009; accepted 24 May 2010)

    Abstract

    Thermoplastic chambers for stormwater retention applications have been in use for many years. One design, an arch-shaped chamber with a 51 in. nominal width and a 30 in. nominal height, has seen widespread acceptance. This paper reports on the development of a structural design for a similar chamber with a 76 in. nominal width and 45 in. nominal height. Development tasks included evaluation of stiffened corrugation designs to permit the use of larger corrugations, evaluation of arch stiffness and stub compression capacity of the chambers, and full-scale field tests of both welded prototype chambers and production chambers. The development program was focused on demonstrating that the chambers met the target safety levels of AASHTO specifications for shallow burial depths with live loads and for deep conditions.


    Paper ID: JAI102861

    DOI: 10.1520/JAI102861

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    Author
    Title Design Development of Large Thermoplastic Chambers for Stormwater Retention
    Symposium Plastic Pipe and Fittings: Yesterday, Today, and Tomorrow, 2009-11-09
    Committee F17