anchor bolts design

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Base Plate and Anchor Rod Design Example Using ASDIP STEEL

By: Javier Encinas, PE | May 2, 2018 ASDIP STEEL is a structural engineering software for design of steel members and components. ASDIP STEEL includes the design of base plates and anchor rods based on the latest AISC / ACI 318 provisions. The design of anchor rods may become cumbersome and time-consuming, since it involves checking multiple failure modes in tension and shear, and then the interaction of both. This document is a step-by-step design example of a typical base plate / anchorage using ASDIP STEEL. As an example, let's consider the base plate of a column [...]

By | May 2nd, 2018|Categories: Anchor Rods|Tags: , , |2 Comments

Anchor Rods: How to Calculate the Tension Breakout Capacity

By: Javier Encinas, PE | June 14, 2017 Anchor rods are elements designed to resist mostly tension forces, sometimes in combination with shear. Out of all the tension limit states required by ACI 318, concrete breakout is particularly important because a concrete failure would be non-ductile, and therefore it should be avoided. This blog post discusses how to calculate the breakout capacity of anchor rods. I will use our software ASDIP STEEL to support the discussion. Concrete breakout assumes a failure forming a concrete cone based on a prism angle of 35 degrees. This method predicts the strength [...]

Anchor Rod Design: Overview of the ACI Seismic Provisions

By: Javier Encinas, PE | January 9, 2017 The seismic design of anchor rods is included in the ACI 318 code, originally in the Appendix D of the ACI 318-11 and earlier, and now in the Chapter 17 of the ACI 318-14. This document is an overview of the ACI 318 seismic provisions that affect the design of anchor rods. The anchor rods are usually subjected to a combination of tension and shear forces. The ACI treats separately tension and shear, and then it combines both effects in an interaction diagram. The seismic provisions apply to anchors in structures assigned to [...]

By | January 9th, 2017|Categories: Anchor Rods|Tags: , |0 Comments

Anchor Rod Design – The Complex ACI Provisions (Part 2)

By: Javier Encinas | November 7, 2016 The design of anchor rods has become more complex with the development of the ACI 318 anchorage provisions. This is the second part of our post regarding the design of anchor rods. In the first part we covered the ACI provisions for the design of anchor rods in tension. Now we will cover the design of anchor rods in shear, as well as the tension-shear interaction. Our software ASDIP Steel will be used to support our discussion. How do you calculate the shear in anchor rods? The lateral forces acting on a structure [...]

By | November 6th, 2016|Categories: Anchor Rods|Tags: , |1 Comment

Anchor Rod Design – The Complex ACI Provisions (Part 1)

By: Javier Encinas | October 2, 2016 The design of anchor rods has become complex and cumbersome with the development of the ACI 318 provisions, originally in the Appendix D of the ACI 318-11 and earlier, and now in the Chapter 17 of the ACI 318-14. This document covers the required steps in the process of the design of the cast-in anchor rods normally encountered in column base plates. The anchor rods are usually subjected to a combination of tension and shear forces. The ACI treats separately tension and shear, and then it combines both effects in an interaction diagram. [...]

By | October 2nd, 2016|Categories: Anchor Rods|Tags: , |2 Comments

ASDIP STEEL: Base Plate and Anchor Rod Design

By: Javier Encinas, PE | January 30, 2016 ASDIP STEEL includes the design of base plates as well as the anchorage system. This blog post covers the principal design steps. This structural engineering software is based on the AISC Design Guides # 1, Blodgett "Design of Welded Structures", and the ACI 318-11 Appendix D. Base plates are structural elements at the bottom of columns to spread the concentrated load over a larger supporting area, so that the bearing stresses are under the acceptable limits. Depending on the type of frame the column belongs to, the base plate may be subject to compression, [...]

Structural Steel Design: ASDIP STEEL (Version 3) Release

By: Javier Encinas, PE | January 11, 2016 ASDIP Structural Software releases regular updates to ASDIP STEEL (Version 3) structural engineering software. Utilize ASDIP STEEL software for the design of base plates / anchorage, steel columns, and steel / composite beams. Following are some features included in this version 3. Click To Enlarge This structural engineering software offers three levels of design results, such as At-a-glance, Condensed, and Detailed. ASDIP STEEL 3 includes a Detailed tab showing step-by-step calculations organized by topic, with exposed formulas and references to the design Code. [...]