ZuoTi.Pro
Question

Answer:

y = 138.889 mm from bottom

IXX = 282.115×106 mm4

9. Establish the height of the centroid in 300mm the concrete beam section shown and calculate the second moment of area about the centroidal axis, lo, (in mm*) using the general formula: Hint: The width of the trapezoid at a general height, y (measured from the neutral axis) is described by the expression: 150mm b (300-150) y 250 Fig. Q9 where b is the width of the section at the neutral axis

engineering   Civil-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

O Findina Controid »-> 00-IS 15mm 300 mm 84 시milny triangle 长 150 250mm 250 Ship Consider a section 이 depth dy at a distance, y bnse, kidth ol ship, 150+2x 150 t 2x75-Y b= = 250 ea o 250 Now centrol 250mm 2 50 0 250 (300 mm t 150 mm)x 250mm 2 260x 3 J 2. 56250 mm2 уニ138-889 mm

0 0
Add a comment
Know the answer?
Add Answer to:
Answer: y = 138.889 mm from bottom IXX = 282.115×106 mm4 9. Establish the height of the centroid in 300mm the concrete...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Answers: IXX = 54.47×106 mm4 Ztop = 722826 mm3 Z bottom = 242474 mm3 Mmax hog...

    Answers: IXX = 54.47×106 mm4 Ztop = 722826 mm3 Z bottom = 242474 mm3 Mmax hog = – 90.00×106 Nmm Mmax sag = + 51.42×106 Nmm 9. Calculate Ixx for the T-section shown in Fig. Q9a. From this, calculate the elastic section modulus for the top and the bottom of the section. This section is loaded as shown in Fig. Q9b. Calculate the maximum hogging and sagging moment in the beam and plot the stress distribution through the depth of...

  • Please show all work. Correct answer should be H. Will rate! 20) The y-coordinate of the centroid of the shaded area is 5.167 in. above the bottom edge of the section. The area moment of inertia abou...

    Please show all work. Correct answer should be H. Will rate! 20) The y-coordinate of the centroid of the shaded area is 5.167 in. above the bottom edge of the section. The area moment of inertia about the horizontal centroidal axis is most nearly: 6 in 4 A. 512 in B. 559 in 2 in. C. 634 in D. 696 in E. 725 in 8 in. in 2 in. F. 779 in G. 819 in 2 in H. 863 in...

  • how you do this qn plz A beam is made from a linear elastic material and...

    how you do this qn plz A beam is made from a linear elastic material and has a cross section as follows. The vertical shear force on the section is 100 kN. AB 250mm AC -25mm * DE = 50mm DH-195mm GJ-250mm GK 30mm CD -30mm Distance from the neutral axis (N.A.) to the bottom edge is y = 120.851 mm The second moment of area component Ixx about the neutral axis N.A. is 1.189e+8 mm4 Note: use and present...

  • An I-beam has a flange width b = 200 mm , height h = 200 mm , web thickness tw = 8 mm , and flange thickness tf = 12 mm...

    An I-beam has a flange width b = 200 mm , height h = 200 mm , web thickness tw = 8 mm , and flange thickness tf = 12 mm . Use the following steps to calculate the shear stress at a point 65 mm above the neutral axis. Part A - Moment of inertia The shear formula includes the moment of inertia of the whole cross section, I, about the neutral axis. Calculate the moment of inertia. Express...

  • 20 KN 3 kN/m 3 2 KN- y, 2 kN-m 12.5 mm 200 mm? Z B...

    20 KN 3 kN/m 3 2 KN- y, 2 kN-m 12.5 mm 200 mm? Z B 150 mm 121.43 mm 1.5 m 1.5 m 2.2 m 12.5 mm Part [1] (a.) Construct shear and bending moment diagrams. Show all work. Label completely. (b.) Determine the maximum value of the transverse shear force (in magnitude) and where it occurs. 'Box' answers. (c.) Determine the maximum values of the bending moment (both positive and negative) and where each occurs. 'Box' answers. Part...

  • Part B?? An l-beam has a flange width b-250 mm , height h = 250 mm...

    Part B?? An l-beam has a flange width b-250 mm , height h = 250 mm , web thickness tw-9 mm , and flange thickness tf = 14 mm . Use the following steps to calculate the shear flow at the point shown, where z = 80 mm Learning Goal: To calculate the shear flow at a point in the flange of an I-beam section subject to a shear force. A thin-walled structure is one where the wall thickness is...

  • A column with a wide-flange section has a flange width b = 400 mm , height...

    A column with a wide-flange section has a flange width b = 400 mm , height h = 400 mm , web thickness tw = 13 mm , and flange thickness tf = 21 mm (Figure 1). Calculate the stresses at a point 65 mm above the neutral axis if the section supports a tensile normal force N = 3 kN at the centroid, shear force V = 7.4 kN , and bending moment M = 4 kN⋅m as shown...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT