1. Given: A steel beam (wide flange section) supports a permanent concrete masonry wall, floor slab, mechanical and electrical systems. The estimated uniform dead load is 24 psf (structural steel framing, fireproofing, flooring and ceiling), and 6 psf for MEP total (mechanical ducting, electrical systems and piping). The wall is 9.5 ft high, non-load bearing and laterally braced at the top to upper floor framing (not shown). The wall consists of 8-in-thick lightweight reinforced concrete masonry units with an average weight of 90 psf. The composite concrete floor slab construction spans over simply supported steel beams, with a tributary width of 10 ft, and weighs 50 psf. Required: Determine the uniform dead load (in kips per linear foot) applied to the steel beam. mechanical duct 9.5' 8" concrete masonry partition concrete floor slab piping wide flange steel beam with fireproofing ceiling tile and suspension hangers

1. Given: A steel beam (wide flange section) supports a permanent concrete masonry wall, floor slab, mechanical and electrical systems. The estimated uniform dead load is 24 psf (structural steel framing, fireproofing, flooring and ceiling), and 6 psf for MEP total (mechanical ducting, electrical systems and piping). The wall is 9.5 ft high, non-load bearing and laterally braced at the top to upper floor framing (not shown). The wall consists of 8-in-thick lightweight reinforced concrete masonry units with an average weight of 90 psf. The composite concrete floor slab construction spans over simply supported steel beams, with a tributary width of 10 ft, and weighs 50 psf. Required: Determine the uniform dead load (in kips per linear foot) applied to the steel beam. mechanical duct 9.5' 8" concrete masonry partition concrete floor slab piping wide flange steel beam with fireproofing ceiling tile and suspension hangers

Architectural Drafting and Design (MindTap Course List)

7th Edition

ISBN:9781285165738

Author:Alan Jefferis, David A. Madsen, David P. Madsen

Publisher:Alan Jefferis, David A. Madsen, David P. Madsen

Chapter29: Design Criteria For Structural Loading

Section: Chapter Questions

Problem 29.3Q

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3) Calculate the nominal moment strength and the design ultimate moment of the precast T-beam shown in Figure if the beam span is 30 ft. Given: f=4000 psi, normal-weight concrete fy=60,000 psi Reinforcement area at the tension side: 2 in. 40 in. 4 No. 9 bars 10 in. 2.5 in. 20 in.
A 300 mm X 450 mm exterior beam is reinforced with 2 – Ø20 mm and 1 - Ø25 mm bars on the first layer of tension reinforcement (larger bar is at the middle), 2 tension reinforcement, 3 – Ø25 mm for compression reinforcement and Ø12 mm for stirrups. From analysis the depth of the tension zone is 344 mm, if the tension steel has a yield strength of 420 MPa and the compression steel has a yield strength of 414 MPa. Determine the following using all the NSCP provision (larger bar always governs the spacing) to check and layout the beam: Ø25 mm on the second layer of - A. The compressive stress in the concrete B. The depth of compression block C. Ultimate Moment Capacity of the beam
SITUATION A: The floor system shown has the following applied loads. Super Imposed Dead Load = 2.00 kPa Live Load = 1.90 kPa Slab Thickness = 100.00 mm Weight of Concrete = 24 kN/m3 Self-Weight of the beam = 1.92 kN/m Material Specifications: f’c = 21.00 MPa fy = 345.00 MPa Steel Cover = 50.00 mm What is the maximum positive moment of beam BE, acting on the midspan? in kN-m What is the maximum steel ratio of the section located at the supports? What is the actual steel ratio of the beam section at the supports? What is the ultimate moment capacity of the beam at the supports? in kN-m What is the effective flange width at the midspan? in mm What is the height of the compression block of the section at midspan? in mm What is the ultimate moment capacity of the beam at the midspan? in kN-m What would be the height of the CHB that can be placed on beam BE? Assuming the weight of the blocks is 2.30 kN/m per meter height? in meters
1. The reinforced concrete cantilever retaining wall in Figure 1 is made with 3000 psi normalweight concrete and reinforced with Grade 60 galvanized steel. The main reinforcement resists flexural stresses in the stem and is specified as #7 bars every 18 in along the length of the wall. The distribution steel distributes stresses along the length of the wall and is specified as #4 bars at 12 in spacing. The concrete cover is 1.5 in everywhere. Calculate the development length for the main reinforcement using the basic equation (ACI 318-19: 25.4.2.4). Assume no transverse reinforcement (Ker 0). Is the main reinforcement embedded deeply enough in the footing to fully develop its yield strength in tension?
(a) The detached servant room of a quarter is having internal size of 3.0mxx4.50m. It is to be covered by a roof of RCC. The dead load on roof 4.5kN//m^(2) and the live load is 1.50kN//m^(2) Design the slab by I.S. Code method. Assume grade of concrete as M25 and grade of Steel as Fe415.
A cylindrical wood covered with steel is the cross-section of the post of a signage as shown. The steel signage has a thickness of 20 mm with a 1.5 m width by 1 m height dimensions and has a density of 7500 kg/m. During storm, the wind strike the signage a pressure of 0.9 kPa. Neglecting the weight of the post and the stress from the torsional moment, find the following; Esee 200 GPa, Eod 10 Gna. Outside diameter of the post is 100 mm, inside diameter is 80 mm. a. The Ia of the transformed section with wood as base material. b. State of stress at point A. Principal stresses and maximum in plane shear stress of "C". d. The transformed stresses of "C" at 20° clockwise.
Compute for the linear dead load of the masonry wall with cladding located on a floor with the following information: Storey height = 4m 2F Beam used: W125x45 5' Concrete Hollow Blocks 12mm-thick WPC Slat Wall Panel (Cladding) on the exterior face = 14.67KN/m? (unit weight)
A typical grade beam 300 x 800 is reinforced with 2 - 25M bars and the cover is forconerete cast and permanently exposed to the earth, (f', =30 MPa) Determine the following: (a) the size of the stress block "a" (b) the bending moment “M," (c) the c/d ratio (d) the type of failure (brittle or ductile) based on part (c) (e) check Asmin (equation 2.7) (Code 10.5.1.2) (f) maximum As permitted based on ductile failure (g) determine maximum bar size (2 required) from Table 1.5 based on part f) (h) check spacing requirements 's' Table 2.6 based on part g) (i) check if skin reinforcement is required Table 2.9 and fy = 400mpa please solve asap %3D
III. A simply-supported rectangular concrete beam with a width of 300mm wide, 600 mm total depth, and 5.8 m long, is needed to accommodate both ceiling height clearance below and the superimposed loads. If f' = 28 Mpa and steel 415 Mpa, fy = 13) what is the allowable resisting moment of the beam without 300 mm stressing the concrete beyond 0.45f"c and steel 0.60f,? Use the transformed area method and rn 8 65 mm 2 #25mm 535 mm 600 mm 14) what is the allowable resisting moment of the beam using the strength design method. 4 #32 mm 65 mm 15) Compare the results of (a) and (b) and comment your observation.
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.
The concrete girders shown in the photo of the passenger car park- ing garage span 30 ft and are 15 ft on center. If the floor slab is 5 in. thick and made of reinforced stone concrete, and the specified live load is 50 lb/ft? (see Table 1–4), determine the distributed load the floor system transmits to each interior girder. TABLE 1-4 Minimum Live Loads* Live Load Live Load Occupancy or Use psf kN/m? Occupancy or Use psf kN/m? Assembly areas and theaters Fixed seats Movable seats Residential 60 2.87 Dwellings (one- and two-family) Hotels and multifamily houses 40 1.92 100 4.79 Garages (passenger cars only) 50 Office buildings Lobbies 2.40 Private rooms and corridors 40 1.92 Public rooms and corridors Schools Classrooms Corridors above first floor 100 4.79 100 4.79 Offices 50 2.40 40 1.92 Storage warehouse Light Нeavy 80 3.83 125 6.00 11.97 250 *Reproduced with permission from Minimum Design Loads for Buildings and Other Structures, ASCE/SEI 7-10.
The roof on the building in has a slab that is 175mm thick. The beams are 300 mm. wide and have a total depth of 400 mm., the bay dimensions are 6 m. in the X direction and 6.5 m. in the Y direction, and the superimposed service dead load is 0.29 KPa. Calculate the slab factored load in KPa. Use NSCP provisions for Live Loads.