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- A built-up section consisting of W 350 x 90 with two 12 – mm plates welded to form a box section as shown in figure. The section is used as a column 10 meters long. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 MPa. Properties of W350x90: bf=250mm tf=16.4mm d=350mm tw=9.5mm Ix=226x10^6 mm^4 Iy=44.54x10^6 mm^4 A=11,550 mm^2 a. Determine the effective slenderness ratio of the column with respect to lateral buckling about the x-axis. b. Determine the effective slenderness ratio of the column with respect to lateral buckling about the y-axis. c. Determine the axial load capacity of the column in kN.Determine the value of Pn for the column shown below. Assume e = 190mm. Use fc' = 21MPa, fy = 414MPa.At-beam has a width of flange equal to 700mm and a thickness of 100mm. It has an effective depth of 450mm and the width of the web section is 350mm. It is reinforced at the bottom with a steel area of 2925sq.mm. fc'=17.24MPa, fy=413.7MPa. The depth of the compression block is _mm. A. 136.00mmB. 146.00mmC. 126.00mmD. 156.00mm
- Determine the design strength of a T- Beam given the following data: bf = 700 mm bw = 300 mm hf = 100 mm d = 500 mm fc' = 21 MPa fy = 414 MPa As: 5- 20 mm dia.A pipe column is braced to prevent bending and buckling. It is subjected to a compressive load of 1,000 kN E= 200 GPa Length= 4 meters and outside diameter= 250 mm. Find the required column thickness if the allowable shortening of the column is 0.8 mm a. 18.75mm c. 37.44mmb. 11.40mm d. 41.25mmA flooring system consists of parallel I-beam sections spaced at 3 m. on centers simply supported over a span of 9 m. The beam supports a 200 mm thick concrete slab of ultimate strength f’c = 21 MPa. The flooring system is designed for as ceiling and floor load of 750 N/m2. The properties of the I=beam sections are: A = 11,500 mm^2 d = 350 mm; tw = 10 mm bf = 250 mm; tf = 16 mm Ix = 266x10^6 mm^4 Iy = 45 x 10^6 mm^4 Fy = 248 MPa Wb = 90 kg/m Fy = 248MPa calculate the total factored uniformly distributed dead load in kN/m
- A flooring system consists of parallel I-beam sections spaced at 3 m. on centers simply supported over a span of 9 m. The beam supports a 200 mm thick concrete slab of ultimate strength f’c = 21 MPa. The flooring system is designed for as ceiling and floor load of 750 N/m2. The properties of the I=beam sections are: A = 11,500 mm^2 d = 350 mm; tw = 10 mm bf = 250 mm; tf = 16 mm Ix = 266x10^6 mm^4 Iy = 45 x 10^6 mm^4 Fy = 248 MPa Wb = 90 kg/m Fy = 248MPaA flooring system consists of parallel I-beam sections spaced at 3 m. on centers simply supported over a span of 9 m. The beam supports a 200 mm thick concrete slab of ultimate strength f’c = 21 MPa. The flooring system is designed for as ceiling and floor load of 750 N/m2. The properties of the I=beam sections are: A = 11,500 mm^2 d = 350 mm; tw = 10 mm bf = 250 mm; tf = 16 mm Ix = 266x10^6 mm^4 Iy = 45 x 10^6 mm^4 Fy = 248 MPa Wb = 90 kg/m Fy = 248MPa calculate the plastic section modulus about the strong axis.Question 16 A W10x30, 2.9 m long, A36 steel is used as a column with fixed ends to support a service dead load of 154 kN. Calculate the maximum service live load the column can sustain using LRFD. Use theoretical value of k. Write your answer rounded to the nearest whole number in kN. A = 5,703 mm2 rx = 111.25 mm ry = 34.80 mm
- A simple beam having a span of 10 m carries a dead load (including its own weight) of 6.5 kN/m. The beam is continuously braced and A992 steel. Properties: A= 9484 mm2 Ix= 333 x 10^6 mm4 d= 456.95mm Sx= 1457x10^3 bf= 190.37 mm Zx= 1655x10^3 mm3 tf= 14.48 mm What is the allowable shear strength (kN)? tw= 9.02 mmQuestion:- A 7.5 meters long simply supported structural steel beam carries two concentrated loads P at every third points. Use A 572 Grade 65 steel with Fy=448.18 MPa. The beam is W310x23.8 section having the given properties. A=3040mm² d= 305mm tw= 5.6mm bf=101mm tf= 6.7 mm Ix= 43x10⁶ mm⁴ Iy=1.2x10⁶mm⁴ a) Calculate the allowable bending stress of the compression flange of beam 7.5 fully supported against lateral movement. b) Based from the previous question, calculate the value of concentrated load P that the beam could support safety.Equivalent:G = 6|M = 4L = 8