AISC DESIGN GUIDE 1 ERTA-2012 Base Plate and Anchor Rod Design (Second Edition).pdf

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1、Revisions and Errata List AISC Steel Design Guide 1, 2ndEdition, 2ndprinting (Printed Copy) October 15, 2012 The following list represents corrections to the second printing (dated March 2010) of the second edition of AISC Design Guide 1, Base Plate and Anchor Rod Design. Page(s) Item 6 In the left

2、column, third paragraph beginning with “The washer diameters shown in Table 2.3,” the fourth sentence contains a reference to AISC Design Guide 7, but the reference should be to Design Guide 10. The corrected sentence should read, “The plate washer thicknesses shown in the table are similar to the r

3、ecommendation in Section 4.2.5 of AISC Design Guide 10, that the minimum washer thickness be approximately 3 the anchor rod diameter.” 17 In the left column, the third equation below step “4. Calculate the required base plate thickness” should read: 4fdbn 29 The last word of the first incomplete par

4、agraph should be “bending” rather than “shear.” The last sentence should read: “It is the authors opinion that the reduction is not required when AISC combined bending and shear checks are made on the anchor rods, and the resulting area of the anchor rod is 20% larger than the rod without bending.”

5、45 Replace the text in the left column, beginning with the last paragraph, as follows: By inspection, -in. plate washers will suffice even with minimal edge distance. Thus, the lever arm can be taken as half the distance from the center of the plate washer to the top of the grout. The plate washer i

6、s -in. thick, and the base plate is 1.25-in. thick (LRFD) and 1.00-in. thick (ASD), as determined in Example 4.5. LRFD ASD 1.25 in.+ 0.500 in./2Lever arm20.750 in.Thus 36.8 kips 0.750 in.46.90 kip-in.lM 1.00 in.+ 0.500 in./2Lever arm20.625 in.Thus 23.0 kips 0.625 in.43.59 kip-in.lM 45 Replace the ca

7、lculation boxes in the right column with the following: LRFD ASD 36.90 kip-in.0.237 in.29.1 ksitbf 33.59 kip-in.0.237 in.15.1 ksitbf LRFD ASD The axial stress in the rods is: 269.8 kips40.994 in.17.6 ksiutaPfAThe tensile stress is: 29.1 ksi 17.6 ksi46.7 ksitf Combined shear and tension strength: 0.7

8、50.75 58 ksi43.5 ksi0.40.4 58 ksi23.2 ksi (threads included)1.31.3 43.5 ksi0.75 43.5 ksi 9.26 ksi0.75 23.2 ksi25.1 ksi0.75 43.5 ksi 32.6 knt unv untnt nt v ntnvFFFFFFFfFF si46.7 ksi 25.1 ksi n.g. The axial stress in the rods is: 242.8 kips40.994 in.10.8 ksiataPfAThe tensile stress is: 15.1 ksi 10.8

9、ksi25.9 ksitf Combined shear and tension strength: 0.750.75 58 ksi43.5 ksi0.40.4 58 ksi23.2 ksi (threads included)1.31.3 43.5ksi2.00 43.5ksi 5.78ksi23.2 ksi2.0017.4 ksi43.5 ksi21.8 ksi2.00nt unv untnt vnvnt ntFFFFFFfFFF 25.9 ksi 17.4 ksi n.g. 46 Replace the calculation boxes in the left column with

10、the following: LRFD ASD Shear stress: 236.8 kips41.77 in.5.20 ksivf Shear stress: 223.0 kips41.77 in.3.25 ksivf 33361.50 in.60.563 in.dZ 36.90 kip-in.0.563 in.12.3 ksitbf 33361.50 in.60.563 in.dZ 33.59 kip-in.0.563 in.6.38 ksitbf LRFD ASD The axial stress equals: 269.8 kips41.77 in.9.86 ksiutaPfAThe

11、 tensile stress is 12.3 ksi 9.86 ksi22.2 ksitf 1.3 43.5 ksi0.75 43.5 ksi 5.20 ksi0.75 23.2 ksi32.7 ksi0.75 43.5 ksi 32.6 ksi32.6 ksintntFF22.2 ksi 32.6 ksi o.k. Use four 12-in.-diameter rods. The axial stress equals: 242.8 kips41.77 in.6.05 ksiataPfAThe tensile stress is 6.38 ksi 6.05 ksi12.4 ksi1.3 43.5 ksi2.00 43.5 ksi 3.25 ksi23.2 ksi2.0022.2 ksi43.5 ksi21.8 ksi2.0021.8 ksitntntfFF 12.4 ksi 21.8 ksi o.k. Use four 12-in.-diameter rods.