Problem 2: Select open web steel joists for a roof system with a span length of 44 ft. The roof loading is snow load 45 psf and superimposed dead load 20 psf. The allowable live load deflection (snow load) is span/360. Use a joist spacing of 5 ft-0 in. Scheck the design showing the bridging type and location. Dmin. Required by SJI - Total DL (plf)- Total LL (plf)- Total Load (plf)- Select the open web steel joist Number of rows of bridging required and type= Sketch: 44'-0" 40'-0" W18 W18 -Indicates direction of span of joists

AT-beam with bf-425mm, tf-100mm, bw-250mm, h-350mm, cc-30mm, stirrups 12mm is reinforced by 6-32mm diameter rebar as shown. Assume fc'-28Mpa, fy-345Mpa, calculate the following. 425mm Icon 17 350mm 6-32mm 250mm Strain of the bottom reinforcement Moment capacity of the beam _kN-m

A built up section of A992 steel, F, = 345 mPa is made from plates fully welded together. The flanges consist of PL16X380 and PL12X500 for the web. Use the NSCP 2015 specifications. PL16x380 WL = 1.5wp %3D A Wu = 3.6wp 10m Which of the following best gives the maximum service dead load, wp? 40.2 kN/m 26.8 kN/m O 10.8 kN/m O 96.6 kN/m PL12x500

The steelwork framing plan for a floor system shows decks as D1-D12, beams and girders as M1- M20 and columns as C1-C9. The unit load on the system is 75-psf dead and 45-psf live. What is the total load going into column C2? C3 C1 C2 I. M1 M2 D3 M8 M3 M4 M5 M6 D1 D2 D4 36' M7 D5 C5 C6 C4 M9 M10 D6 M16 M17 M18 M19 M11 M12 D7 D10 D11 D12 40' M13 D8 M14 D9 I. C9 C7 C8 M20 M15 24' 16'

Date No. Cheek Deflection for Simply supported Girder Bridga :- Span L-20 DL from Section o.w weight = As 18020 C Ec-2.2x106 +252 feu-250 kg/cm² fy, 3600 kg/cm2 DL LL 1.681 2.7 2.7 11.68 1.5 2.2 2.2 0.5 0.2 2.2 D.S 0.2

Compute the practical moment strength OM,, for the simply supported precast inverted T-girder shown. Use f = 3000 psi and fy = 60,000 psi. 16" 6" 21/1/2" 2-1/2" 10"- ---2-#7 16"- -0--4-#9

NEED REALLY FAST PLS

Total load 87 psf = B1W16 x 57 G1W24 x 68 Compute Vmax and Mmax for Beam 1 and Girder 1 in the roof framing plan. 28' H I H- B1 6 @ 6' = 36' B1 B1 B1 B1 | G1 I- I-

Wood planks are used on each working level. The deck width/bearer span is 5 ft.. The bearers and posts are standard pipe and the pipe material is A36 steel with a yield stress of 36,000 psi and modulus of elasticity of 29,000,000 psi. Bearers are to be located at a vertical spacing of 10 ft (largest, lowest post height). Posts are to be 7 ft oc (plank length) parallel to the building wall and 5 ft apart (bearer length) perpendicular to the building wall. There are four working levels and the anticipated scaffold loading will be med duty. A. Assuming the ultimate bending strength of the planks is 3,800 psi (apply a 4:1 F.O.S.), determine the required minimum plank thickness to the nearest 100th.  B. Based on the bearer material provided, what is the minimum pipe size that can be safely used? See Appendix 2 in your textbook for steel pipe properties.  C. Based on the post material provided, can a 2” standard pipe be used safely? Be sure it satisfies buckling stress conditions only.

Figure 1.5 m E -2 m- 3 kN D B -2 m 1 of 1 Identify the zero-force members in the truss. Check all that apply. BE DE CD AB AE BD BC Submit Drouido Foodbook Request Answer