By Task Committee on Anchorage Design of the Petrochemical Committee of the Energy Division of ASCE
Anchorage layout in Petrochemical amenities offers thoughts for the layout, fabrication, and set up of anchorages into concrete for petrochemical amenities. examining the purpose of creating codes as utilized to petroleum or chemical installations, this document deals lifelike tips 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 offers 3 instance designs for column pedestal anchors, octagonal pedestal anchors, and shear lug pipe sections. subject matters comprise: assessment of layout tools for rigidity and shear move with reinforcement and different embedments as utilized in the petrochemical undefined; anchorage fabrics and homes; cast-in-place anchors; post-installed anchors; instructed set up and service. This document can be valuable to petrochemical or structural engineers, in addition to through managers of businesses working petrochemical amenities. it's going to even be important for structural engineers in different industries who anchor structural metal and kit to concrete foundations and constructions
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Additional info for Anchorage Design for Petrochemical Facilities
25 mm] and smaller) during equipment installation to align the anchors with the equipment holes. The partial sleeve increases the length of the anchor not cast against concrete and allows for this adjustment. This type of sleeve should be filled with grout or elastomeric fill after placement of the equipment in order to prevent liquid from accumulating in the sleeve. For anchors larger than 1 in. (25 mm), which cannot be easily moved even when a sleeve is provided, other methods such as templates and more diligent QA/QC procedures in placing the anchors should be used so that horizontal adjustment will not be necessary.
A ductile connection is defined as one that is controlled by the yielding of steel elements (anchor or reinforcement) with large deflections, redistribution of loads, and absorption of energy prior to any sudden loss of capacity of the anchorage resulting from a brittle failure of the concrete. ACI 318 and other building codes favor ductile design for seismic and blast-resistant design. Ductile design may also be required by the client or project standards. ANCHORAGE DESIGN FOR PETROCHEMICAL FACILITIES 33 Anchorage design should be approached as a global structural design issue, focusing more on the development of ductile load-resisting paths than on the ductility of a single element.
2. When using partial sleeves, shear should not be transmitted via anchor bearing unless the sleeves are filled with grout to assure a proper bearing surface at the top-ofconcrete elevation. 5 for a detailed discussion of the design considerations associated with the transfer of shear from the attachment to the foundation. Consideration should be given to the stiffness of the anchors before partial sleeves are specified for anchor alignment during equipment installation. As the anchor size (and thus the stiffness) increases, the ability to move the anchor horizontally in the field decreases.