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BEBO Arch™ units are high quality, low maintenance precast structures which can be used in a variety of applications including bridges for larger brooks and streams. Each BEBO Arch™ unit is a precast concrete arch, which relies upon the soil cover pressures to provide structural support. Typically, the structure is founded on a concrete strip footing which may be either precast or cast-in-place. The standard BEBO Arch™ unit width is 2.44m, with heavier longer span units produced in 1.83m widths.
SHAW PIPE can produce BEBO Arch™ units in low profile elliptical cross sections, with spans ranging from 3.66m to 21.94m, and also units in a high profile circular cross section with spans of 9.14m, 10.97m, and 12.80m. Heights of arch cross sections can be matched to suit project requirements. Designers should consult with our design staff to determine the availability of a particular arch size. DESIGN OF BEBO ARCH UNITS: The structural design for each BEBO Arch project is carried out by experienced Professional Engineers at SHAW PIPE. The design and reinforcement for a typical unit are functions of the following:  CLEAR SPAN: measured from the inside face of each leg
CLEAR RISE: measured from bottom of the leg to underside of arch at mid span
FILL COVER: The depth of soil over the structure
SPECIFIED DESIGN LOADS: For example CL-625/CS-700 truck live load.
Footing design is based on the parameters noted above and the site specific geotechnical conditions. Strip footings can be cast-in-place on site or precast at our plant with the BEBO Arch™ units for delivery to the site. SHAW PIPE will assist Consultants with layout, unit size, and installation issues on BEBO Arch™ projects. Project specific CAD drawings for proposals and tenders can be developed upon request.
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