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DES EVALUATION09
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<br /> ® Originally Issued: 02/11/2020 Valid Through: 02/28/2021
<br /> SUPPORTWORKS, INC. 2.6 The capacity of the supported structure to transfer the
<br /> 11850 Valley Ridge Drive design loads to the foundation system is outside the scope of
<br /> Papillion,Nebraska 68046 this report.
<br /> www.supportworks.com
<br /> ikortannsupportworks.com 2.7 The effects of corrosion shall be considered, and
<br /> adequate_sacrificial material shall be provided to maintain
<br /> SUPPORTWORKS MODEL HP288 helical foundation support capacity for a period of 50 years.
<br /> HELICAL FOUNDATION SYSTEM Table 1 shows the assumed effects of.corrosion on the shaft
<br /> physical properties over the assumed 50-year period using
<br /> CSI Section: moderately corrosive soil properties.The helical foundation
<br /> 3166 00 Special Foundations system has not been evaluated for use in soil conditions that
<br /> 31 6615 Helical Foundation Piles that are characteristic of a potential pier deterioration or
<br /> corrosion situation as defined by the following: (1) soil
<br /> 1.0 RECOGNITION resistivity less than 1,000 ohm-cm;(2)soil pH less than 5.5;
<br /> (3) soils with high organic content; (4) soil .sulfate
<br /> The structural and geotechnical performance of the concentrations greater than 1,000 ppm;(5)soils located in a
<br /> Supportworks, Inc. (Supportworks) Model HP288 helical landfill, or(6)soil containing mine waste.
<br /> foundation system, recognized in this report, has been
<br /> evaluated for use as an alternative to prescriptive foundations 2.8 When use of helical foundations falls outside the
<br /> and footings for residential occupancies and comply with the limitations of this evaluation report, or when capacities are
<br /> intent of the following codes: in doubt,field testing may be used to determine the capacity'
<br /> of the helical foundation systems. Where field tests are
<br /> • 2018, 2015, and 2012 International Residential Code® required to confirm the capacity of a helical foundation
<br /> (IRC) installation, these tests shall be supervised by a registered
<br /> design professional.
<br /> 2.0 LIMITATIONS
<br /> 2.9 The helical foundation system,recognized in this report,
<br /> Use of the Supportworks Model HP288 helical foundation is produced by: Behlen Technology & Manufacturing,
<br /> system recognized in this report is subject to the following Omaha,NE;Behlen Manufacturing,Columbus,NE;or TSA
<br /> limitations: Manufacturing, Omaha,NE.
<br /> 2.1 Use shall comply with the provisions of the applicable 3.0 PRODUCT USE
<br /> codes,the manufacturer's published installation instructions,
<br /> and this report.Where conflicts occur in these provisions,the 3.1 General: Supportworks helical foundation systems
<br /> most restrictive shall govern. function as foundation support at residential structures,
<br /> additions, decks or accessory structures. The helical
<br /> 2.2 The helical foundation system is for use in seismic design foundation systems uses include support of new
<br /> categories A,B, and C. Use of the system in seismic design construction foundations or additional support of existing
<br /> categories Do,D 1,D2,and E is outside the scope of this report. foundations.
<br /> 2.3 Any required field welding shall be performed and 3.2 Design: The Allowable Stress Design (ASD) method
<br /> verified in accordance with the provisions of the IRC. shall be used for design, considering all applicable limit
<br /> states. The ASD capacity of the installed helical foundation
<br /> 2.4 The building official may require a soil test in accordance shall be taken as the lesser of the individual ASD capacities,
<br /> with IRC Section R401.4,where,based on quantifiable data, for the bracket(Pl), shaft(P2),helix plates (P3) or the soil
<br /> the presence of questionable soil characteristics such as bearing capacity (P4). The individual and overall system
<br /> expansive,compressible,or shifting soils are likely. ASD capacities for the helical foundation system are shown
<br /> on Tables 2,3 and 4.
<br /> 2.5 Allowable lateral load resistance capacities of the
<br /> system are outside the scope of this report and shall be 3.2.1 Bracket Capacity(Pl):The concrete bearing strength
<br /> determined by site specific testing or using an analysis has been evaluated in relation to bracket capacity.All other
<br /> method acceptable to the building official. structural requirements and limit states applying to the
<br /> concrete foundation, as described in AC1 318 (anchorage
<br /> per Appendix D, punching (two-way) shear, beam (one-
<br /> way)shear,and flexural(bending)related limit states),have
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<br /> The product described in this Uniform Evaluation Service(UES)Report has been evaluated as an alternative material,design or method of construction in order to satisfy and comply with
<br /> the intent of the provision of the code,as noted in this report,and for at least equivalence to that prescribed in the code in quality,strength,effectiveness,fire resistance,durability and safety,
<br /> as applicable,in accordance with IBC Section 104.11.This document shall only be reproduced in its entirely.
<br /> Copyright©2020 by International Association of Plumbing and Mechanical Officials.All rights reserved.Printed in the United States. Ph:1-877-41ESRPT•Fax.909.472.4171
<br /> web:www.unifonn-es.org•4755 East Philadelphia Street,Ontario,California 91761-2816—USA
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