Determine the effective net area of the L7 × 4 × 1/2 shown in the figure. Assume the holes are for 1-in Ø bolts. Use the U values given in Table 3.2. (Ans. 3.97 in^2) 3 ino oL7X 4 x을 LIVAll 2 inin2. TABLE 3.2 Shear Lag Factors for Connections to Tension MembersDescription of ElementAll tension members where the tensionload is transmitted directly to each of thecross-sectional elements by fasteners orwelds (except as in Cases 4,5 and 6).CaseShear Lag Factor, UExampleU = 1.02All tension members, except plates andHSS, where the tension load is transmittedto some but not all of the cross-sectionalelements by fasteners or longitudinalwelds or by longitudinal welds incombination with transverse welds.(Alternatively, for W, M, S and HP, Case 7may be used. For angles, Case 8 may beused.)U=1-X//3All tension members where the tensionload is transmitted only by transversewelds to some but not all of thecross-sectional elements.U = 1.0andA, = area of the directlyconnected elementsPlates where the tension load istransmitted by longitudinal welds only.412 2w... U- 1.02w >12 1.5w. ..U- 0.87 -1.5w >Iz w...U- 0.75Round HSS with a single concentricgusset plate12 1.3D...U - 1.0Dsl<1.3D...U=1- lI = D/nRectangular HSSwith a single con-centric gusset plate12H...U = 1 – /IHB + 2BH4(В + H)with two side gussetplates12H...U = 1-4(В + Н)with flange con-nected with 3 orW, M, S or HPShapes or Tees cutfrom these shapes.(If U is calculatedper Case 2, theiarger value is per-mitted to be used.) with 4 or more fas-7b;2 2/3d ... U = 0.90b,< 2/3d... U = 0.85more fasteners perline in the directionof loadingwith web connectedU= 0.70teners per line in thedirection of loadingSingle and doubleangles (If U iscalculated perCase 2, the largervalue is permitted tobe used.)with 4 or more fas-teners per line in thedirection of loading8U = 0.80with 3 fastenersper line in thedirection of loading(With fewer than 3fasteners per line inthe direction ofloading, use Case 2.)U = 0.60|- length of connection, in. (mm); w - plate width, in. (mm); x eccentricity of connection, in. (mm); B overallwidth of rectangular HSS member, measured 90° to the plane of the connection, in. (mm); H - overall height ofrectangular HSS member, measured in the plane of the connection, in. (mm)Source: AISC Specification, Table D3.1, p. 16.1-28, June 22, 2010. Copyright © American Instituteof Steel Construction. Reprinted with permission. All rights reserved.

Tension Members: The structural members which are subjected to axial tensile forces are known as…

Answered: Determine the effective net area of the…

Determine the effective net area of the L7 × 4 × 1/2 shown in the figure. Assume the holes are for 1-in Ø bolts. Use the U values given in Table 3.2. (Ans. 3.97 in^2)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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