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The plastic section modulus can be calculated for a given cross section by: Locating the plastic neutral axis. PNA; Bringing the stress distribution to full plastic stress (constant) above and below the PNA. Summing the moments on the cross section. Finally divide the resulting moment by the yield stress to find the plastic section modulus.
So you use the plastic capacity of the section. Assuming that you are designing the end-plate in the ULS (which is the most common scenario) reading the Eurocode carefully gives the answer; In clause §5.5.2 (1) it says "The role of cross section classification is to identify the extent to which the resistance and rotation capacity of cross ...
Civil Engineering questions and answers. Question 1 Determine the elastic section modulus and the plastic section modulus for a W36x330 modeled as three rectangles forming the flanges and the web. Compare the calculated values to those given in the Manual 16.b 1.850 37.7" I.D 2 Question 2 Determine the plastic neutral axis and the plastic ...
Our expert help has broken down your problem into an easy-to-learn solution you can count on. Question: Determine the elastic neutral axis, elastic section modulus, plastic neutral axis, and plastic section modulus for a WT8×50 modeled as two rectangles forming the flange and the stem. Compare the calculated values to those given in the Manual.
A simply supported beam spans 25 ft and carries a uniformly distributed dead load of 0.6 kip/ft, including the beam self-weight, and a live load of 2.1 kip/ft. Determine the minimum required plastic section modulus and select the lightest-weight W-shape to carry the moment. Consider only the limit state of yielding and use A992 steel.
Civil Engineering questions and answers. PROBLEM 1: A flexural member is fabricated from two flange plates 1/2 x 7/2 and a web plate ¾ x 17. The yield stress of the steel is 50 ksi. a. Compute the plastic section modulus Z and the plastic moment M, with respect to the major principal axis. b. Compute the elastic section modulus S and the yield ...
Civil Engineering questions and answers. PROBLEM I A flexural member is fabricated from two flange plates 1/2 x 16 and a web plate 1/4 x 20. The yield stress of the steel is 50 ksi. a. Compute the plastic section modulus Z and the plastic moment M, with respect to the major principal axis. b. Compute the elastic section modulus S and the yield ...
And thus the Section Modulus really has two values, I think. @Ethan48 I am referring to equal leg as well. The geometry of an equal or unequal leg angle has no line of symmetry. Sx Sy S x = S y Zx Zy Z x = Z y. No, I am not referring to the Section Modulus based on the Y-axis centroid. I can see how an equal legs THOSE two will be the same.
Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on. Question: Determine the elastic section modulus and the plastic section modulus for a W36 times 652 modeled as three rectangles forming the flanges and the web. Compare the calculated values to those given in the Manual.
Question: Determine the elastic section modulus and the plastic section modulus for a W40x199 modeled as 3 rectangles forming the flanges and the web. Compare the calculated values to those given in the Manual. For this W section: d=38.7" t_w=0.650" b_f=15.8 " t_f=1.07" S_x=770 in^3 Z_x=869 in^3. Determine the elastic section modulus and the ...