By Task Committee on Anchorage Design of the Petrochemical Committee of the Energy Division of ASCE
Anchorage layout in Petrochemical amenities provides options for the layout, fabrication, and set up of anchorages into concrete for petrochemical amenities. studying the cause of creating codes as utilized to petroleum or chemical installations, this document deals sensible counsel on fabrics, layout information, set up, and service. It summarizes the kingdom of the perform for the layout of cast-in-place anchor rods, welded anchors, and post-installed anchors. An appendix presents 3 instance designs for column pedestal anchors, octagonal pedestal anchors, and shear lug pipe sections. themes contain: review of layout tools for stress and shear move with reinforcement and different embedments as utilized in the petrochemical undefined; anchorage fabrics and houses; cast-in-place anchors; post-installed anchors; urged deploy and service. This document might be important to petrochemical or structural engineers, in addition to via managers of businesses working petrochemical amenities. it's going to even be worthwhile for structural engineers in different industries who anchor structural metal and gear to concrete foundations and buildings
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Extra info for Anchorage Design for Petrochemical Facilities
C. Comite Euro-International Du Beton (1997) recommended that the reinforcement be placed as close as possible to the headed anchors (and preferably be tied to the anchors). d. Lee et al. (2007) stated that supplementary hairpin reinforcement may be used to increase the concrete breakout strength if arranged in a manner similar to that tested (≤ 4 in. 15hef from the anchor). However, they also indicated that their test results cannot be used to develop a general design model for anchors with supplementary reinforcement because of limited test data.
G. Rebar development length should be adequate to fully develop the required load on both sides of the failure surface in accordance with ACI 318. h. 1 for single anchors and group anchors. i. 1(a). 1(b). 6), implying that the use of the STM design approach in designing anchor reinforcement is an acceptable design approach. The STM is an ultimate strength design method based on the formation of a truss that transmits forces from loading points to supports. The STM uses concrete struts to resist compression and reinforcing ties to carry tension.
ANCHORAGE DESIGN FOR PETROCHEMICAL FACILITIES Nua 47 N ua 1 3 1 IF TIES CENTERED AT THE BEARING SURFACE OF THE ANCHOR HEAD ARE INSUFFICIENT TO RESIST THE SIDE-FACE BLOWOUT FORCE, PLACE ADDITIONAL TIES WITHIN THIS REGION. 10. Using STM, it is assumed that the diagonal concrete struts propagate radially from the anchor head. As a result of the diagonal concrete struts, there are radially horizontal force components propagating from the anchor head. 10. This horizontal force component is the force that can cause: a.