Question

Design a staircase for a two story building with the given loads: DL = 72 psf LL = 60 psf The building floor height = 8ft for a total height of 16 ft. The staircase design must comply with the A.D.A. requirement for a hospital building. Design calculations must be in english units (ft, inches, pnds etc).

Answer 1

1.DATA:
	number of steps in the flight=	8
	tread T =	270	mm
	Rise R=	130	mm
	Width of landing beams=	300	mm
	fck=	20	N/mm2
	fy=	415	N/mm2
	width of stair case b=	1000	mm
2.EFFECTIVE SPAN:
	Effective span =(no of steps *thread )+width of landing beam
	Effective span =	2460	mm=	2.46	m
	thickness of waist slab =span /20=	123	mm
	adopt overall depth = D=	123	mm
	effective depth=d=	98	mm=

	total dead load =	3.447379	KN/m
	service live load=	2.872816	KN/m
	total load=	6.320194	KN/m
	factored load = wu= 1.5*t.l =	9.48029126	KN/m
4.BENDING MOMENTS:
	maximum bending moment at centre of span is
			Mu =	0.125 WuL2
			Mu =	47.03409501	KN.m
5.CHECK OF DEPTH OF WAIST SLAB:
		Mu=0.138fckbd2
	by solving d =	130.5425	mm<	290	mm
			hence safe
6.MAIN REINFORCEMENTS:
							calculations
		Mu=0.87fy Ast d				0.1286307
						0.8713693
								0.9334716
		by solving Ast =	464.8969828	mm2			0.0665284
								464.89698
				dia of bar=	12	mm
				no of bar =	4.112677	nos		113.04
				so Ast =	464.897	mm2
		provide 12mm diameter bar at 200mm centres as mainreinforcement
7.DISTRIBUTION REINFORCEMENT:
	distribution reinforcement = 0.12 percent of cross section
			=	378	m Ally Wells Next > < Previous Related Solutions Design a staircase for a two story building with the given loads DL = 72 psf... Design a staircase for a two story building with the given loads DL = 72 psf and LL= 60 psf. The staircase design must comply with A.D.A. requirements for hospital buildings. if you're given a number of dead loads on a 4 story building and a floor... if you're given a number of dead loads on a 4 story building and a floor plan with beams. how do you find the total dead load and live load on each beam? the goal is setting up a shear stress and moment diagrams for each beam. say I was given a number of dead loads in psf and I'm supposed to find the total dead load and the live load. The Trump Tower is a 72-story luxury condominium building constructed at Springfield Plaza in Manhattan, New... The Trump Tower is a 72-story luxury condominium building constructed at Springfield Plaza in Manhattan, New York. Before the building was constructed, Smithers Limited Partnership (Smithers LP) began selling condominiums at the building. The condominium offering plan required a nonrefundable down payment of 25 percent of the purchase price. The purchase contract provided that if a purchaser defaulted and did not complete the purchase, Smithers LP could keep the 25 percent down payment as liquidated damages. Homer and Marge Simpson... 4. In a two – story building, an exterior column is to be designed for a... 4. In a two – story building, an exterior column is to be designed for a service dead load of 1000 KN, maximum live load of 1500 KN, dead load moment of 60 KN m, and live load moment of 90 KN m. If the column dimensions will be restricted to 400 mm x 500 mm, fc’ = 27.6 MPa, and fy = 414 MPa, calculate the required column reinforcement In a two – story building, an exterior column is to be designed for a service... In a two – story building, an exterior column is to be designed for a service dead load of 1000 KN, maximum live load of 1500 KN, dead load moment of 60 KN m, and live load moment of 90 KN m. If the column dimensions will be restricted to 400 mm x 500 mm, fc’ = 27.6 MPa, and fy = 414 MPa, calculate the required column reinforcement. Your boss asks you to design a commercial-industrial building with planned column loads of 2,000 kN.... Your boss asks you to design a commercial-industrial building with planned column loads of 2,000 kN. For each of the locations described below, list the type(s) of foundations you would consider in preliminary planning. Briefly explain your choice. 1) Urban fill extending to depths of ~5 m, followed by ~50-60 m of a soft lacustrine fat clay deposit. 2) Peat to a depth of 2 m underlain by a thick dense granular deposit, the groundwater table is near the surface.... Heather owns a two-story building. The building is used 40% for business use and 60% for... Heather owns a two-story building. The building is used 40% for business use and 60% for personal use. During 2020, a fire caused major damage to the building and its contents. Heather purchased the building for $800,000 and has taken depreciation of $100,000 on the business portion. At the time of the fire, the building had a fair market value of $900,000. Immediately after the fire, the fair market value was $200,000. The insurance recovery on the building was $600,000.... 1) A ball is tossed from an upper-story window of a building. The ball is given... 1) A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8..00 m/s at an angle of 20.0 below the horizontal. It strikes the ground 5 .00 s later. A) How far horizontally from the base of the building does the ball strike the ground? B) Find the height from which the ball was thrown. C) How long does it take the ball to reach a point 10.0 m below the... A retailer pays $190,000 rent each year for its two-story building. The space in this building... A retailer pays $190,000 rent each year for its two-story building. The space in this building is occupied by five departments as specified here. Jewelry department 1,470 square feet of first-floor space Cosmetics department 3,430 square feet of first-floor space Housewares department 2,058 square feet of second-floor space Tools department 980 square feet of second-floor space Shoes department 1,862 square feet of second-floor space The company allocates 60% of total rent expense to the first floor and 40% to the... The Sun Top Nursing Home is currently a 100-bed facility located in a two-story building. Due to demand, two additional two-story buildings will be opening within the next two years. The Sun Top Nursing Home is currently a 100-bed facility located in a two-story building. Due to demand, two additional two-story buildings will be opening within the next two years. When completed, the units will be 1North, 2 North, 1 East, 2 East, 1 West, and 2 West. The chief nursing officer /director of quality improvement is concerned that as the facility expands, the Centers for Medicare & Medicaid Services (CMS) Long Stay Quality Measures results will reflect negatively upon... ADVERTISEMENT Subjects Accounting Advanced Math Anatomy and Physiology Biology Chemistry Civil Engineering Computer Science Economics Electrical Engineering Finance History Math Mechanical Engineering Operations Management Physics Psychology Statistics and Probability Nursing Other ADVERTISEMENT Latest Questions You must evaluate a proposal to buy a new milling machine. The base price is $175,000,... “Triangle Guessing” game in Python The program accepts the lengths of three (3) sides of a... THIS PROGRAM HAS TO BE WRITTEN IN C Single function to perform the parity computation on... Consider a buffer system consisting of Benzoic acid (pKa = 4.20) and sodium benzoate, a) Would... Decision Variables S T Minimize 1.8S + 2.20T Subject to: Potassium 5S + 8T >= 200... A neurologist needs to counsel a stroke victim and her husband about possible outcomes, treatment options,... Case Study: Personal Beliefs in the Workplace Don Shakow was a prominent professional who worked in... ADVERTISEMENT About @ 2020 WizEdu