Anchorage Design for Petrochemical Facilities by Task Committee on Anchorage Design of the Petrochemical

By Task Committee on Anchorage Design of the Petrochemical Committee of the Energy Division of ASCE

Anchorage layout in Petrochemical amenities offers techniques for the layout, fabrication, and set up of anchorages into concrete for petrochemical amenities. reading the cause of creating codes as utilized to petroleum or chemical installations, this document bargains lifelike information on fabrics, layout info, install, and service. It summarizes the country 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. themes contain: review of layout equipment for rigidity 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; suggested install and service. This file could be necessary to petrochemical or structural engineers, in addition to by means of managers of businesses working petrochemical amenities. it's going to even be necessary for structural engineers in different industries who anchor structural metal and kit to concrete foundations and constructions

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While the STM is a conceptually simple design tool, it requires assumptions for the following items: a. Capacity of struts and nodes b. Geometry of struts and nodal zones c. 1 Tension Force Tension force in anchors induces tensile stress in concrete due to bearing at the embedded anchor head or nut, which in turn induces lateral bursting forces. 7. 1 Recommended Location of Anchor Reinforcement for Tension There is currently no available test data that can be used to strongly recommend the location of anchor reinforcement in typical pedestals.

However, there are valid reasons why the engineer may choose the design load to be the ultimate tensile capacity of the anchor. These may include easier detection and repair of damage from overload, since the anchor elongation can be easily detected. When peak loads are applied in a short term or impulsive manner, properly designed and detailed connections can allow a structural support to continue to carry loads until the short term peak has passed. Likewise, anchorage design should allow for the redistribution of loads and absorption of energy, as required in seismic or blast resistant design.

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. Once these load paths are developed, the engineer can then correctly assess the effect of a ductile connection and decide what requirements should be imposed on an individual anchor. The engineer should base the decision on whether to use ductile or non-ductile anchorage design on client specifications, building code requirements, the nature of the applied loads, the consequence of failure, and the ability of the overall structural system to take advantage of the ductility of the anchorage.

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