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 deploy of anchorages into concrete for petrochemical amenities. analyzing the reason of establishing codes as utilized to petroleum or chemical installations, this file bargains practical assistance on fabrics, layout info, deploy, and service. It summarizes the nation 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 comprise: evaluation 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 document might be precious to petrochemical or structural engineers, in addition to via managers of businesses working petrochemical amenities. it's going to even be valuable 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
Mm) 2 (51) 5 (127) 2 (51) 7 (178) 2 (51) 7 (178) 2 (51) 7 (178) 3 (76) 10 (254) Anchor Diameter in. (mm) 1/2 (13) 5/8 (16) 3/4 (19) 7/8 (22) 1 (25) Full-length sleeves are typically provided for anchors that are to be tensioned or if the engineer determines that a greater allowance is required for alignment. If the anchor is to be tensioned, the full length sleeve should be sealed on top or filled with an approved elastomeric material to prevent grout or liquid from filling the sleeve. For full-length sleeves, the minimum Abrg shall be calculated using ACI 318, equation D15.
Engineers should check the availability of long headed bolts for use in their area. 2 Minimum Dimensions The following minimum anchorage dimensions are suggested for cast-in-place anchors. They are typical dimensions used in the petrochemical industry; they are not intended to provide for developing the full anchor capacity and may require reinforcement. 5 in. 5 in. 3 mm) 4da Where: da = anchor diameter When sleeves are used, the minimum dimensions listed above should be increased as shown below.
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. Without such data, it is prudent and good practice to place anchor reinforcement as close as practicable to the anchor in order to prevent any unknown failure mechanism.