ARCH 411 Spring 2006 Guh Homework 1-8

ARCH 411 Spring 2006 Guh Homework 1-8 - ”V¢ University...

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Unformatted text preview: ”V¢- . University of Southern California ARCH School of Architecture . Dr. Jeff Homework 1: Due Tue., Jan. 24, 2006 A drugstore (M occupancy) is to be built on a vacant lot with property lines as shown. The building is to be a single-story structure of Type V-N wood frame construction. Owner desires a minimum gross floor area of 14,000 square feet. No sprinkler system is to be installed. According to the local zoning'code, the minimum side and back yard setbacks are 20' from the property lines. No front yard setback is required. Assuming the building has a rectangular footprint, locate the building on the site plan. Indicate all necessary plan dimensions. lg =- ILLDOO f5 ‘T.1 PO :- q-H “’94. EWIN- 5ekimd4$ 9 10‘ Oouusetwio‘l M ,2 4t&l_..$ 0 96A pp. 1-262’. 80 20') =75X l Aeafifi Ammgowo *.'Z°3(52,000351Ll.000 WIWIMW [O \/ fl.— SMTWQJ‘EC‘ 3327‘ ’9 \ja =0 Km: \fv ( abOwT “We: dQFTW‘TTow!‘ {O +‘AQ fan-«5‘ L 0 TN: Fmbhaw‘ts m i? A‘}" 0&3 ; \/w=’? V”- (141%? K wiqu i I fit DEMIJ" \j \jw VJ K- LQ + L43 " 7 ————V- : e 1—H _: .--—-—-"\/ +V The vex—Y IS €551 a V‘ V WIN; W W 5 55% C \_) '- SM (L QMWC é Q M3“ av’c 7:) grwflé‘r V i ‘ f r K L drkw, 01H we. dined Jr: C‘nd 1d Gide—rm Dem .411) IS ‘ ' W _ VG'H/w A‘boitjaa677vs- w ' _o. University of Southern California I‘ A CH School of Architecture R 411 U I _ u ‘ I r I Dr. Jeff Guh Homework 2: Due Tue., Jan. 31, 2006 j /‘_—-—I— M 1. A sample of saturated soil taken below groundwater table has a water content of E 11%? if 43% (meaning there is no air in the soil). The soil’s solid particle density is 168 (“‘1 le/ft3. What are the porosity, the void ratio, and saturated unit weight of the soil? lee * "7"" (Draw the phase diagram to help you solve the problem.) 2. A soil sample taken above groundwater table has a water content of 15%. Its unit weight is 120 lbs / ft3. Laboratory tests indicate its maximum void ratio is 0.85 [when densely packed) and its minim void ratio is 0.50 (when loosely packed)- What is the soil’s degree of saturation? What is the soil’s relative density? . . " It Classify the soil per US Department of Agriculture Clasmficatlon ystem. L am 1 ,Du‘sfl *W h— . _ : H/«rer- Mia/w? War—W?) m saw 6W9 / > @ 51; W V t Paine-HA7 l n : \Ju ~ 'fl? ’ {ii - _.———- " - _ as .o ' on wow-005‘) 05% A/tt’i . $0115) MQ‘V’ > a)? 46+ \jvlol flflhlp: University of Southern California ARCH 411 School of Architecture Dr. Jeff Guh Homework 3: Due Tue., Feb. 7, 2006 1. An existing 1—story plus basement office buil ' ection as showu) is to be demolished for a new 1—story warehouse building. How would you treat the basement retaining walls during demolition? Would you keep them or demolish them? What would be an appropriate method for either scenario? Do you need shoring for either case? Based on this assessment, which see ario makes more sense? W fl...“ W. m W mist ( W W I (Luv? {n5 WOU'HD“ :i W 67' ®1fflodc§ W Mum‘s onOSQU ( )6 . nuttth {-6 20mg“ m M- M ‘0‘) W UL . © 9st; can MM9+h¢M and L956. i at; Mmfis or bosom, 0" Mm amok ire-compact $14,561)": (9 jOU will pmbmb‘kj Wéhw.hg a? a . re W 1 t9 M C0635 iv 535” '7 I .‘ invite-R0 May-'- 6LV‘5M 60"“ “Hafiz - ©1wimwmmmmv Lzr's‘ l 23‘ ' WW wet M, .- .- 2. A new parking structure is to be building between a theater and a hotel. The new parking structure is 3-story above grade with no basement. If possible, we’d like to use shallow spread footings / wall footings. The existing 1—story theater has a basement with shallow footings- The existing multi-story hotel has no basement and is supported by shallow footings. How would you build the footings for the new parking structure? (Keep in mind that the building code does not allow you to super-charge any of the existing fgfig I wou’tdi bulkfi on. mm W leg-t gunk; MQVUDQTU so 'd wand-\- f’J"? ._ l . X emssure om W bestow/dr- T— WOQWK fie i ?‘ ijwlg____w_.‘__fl,,_,_._i ‘ it: who bum to M 0W 6°an ‘ to trigger micch pasm‘m) we on i HAC- [am {009% - évmmmy? Lamar ymm a" ‘ “ ARCH 411 Dr. Jeff Guh" University of Southern California 1- School of Architecture homework 4: Due ‘lue., Fe: .. 14, 2006 f“ 1. Your engineering consultant has prepared the following calculations for a reinforced concrete cantilever retaining wall. Active soil pressure is 30 pcf. It's OK to ignore the passive soil pressure. Concrete’s unit weight is 150 pcf. Friction coefficient between concrete footing and soil is 0.3. The building code allows us to include only 2/3 of the concrete dead weight in calculating the resistance. Explain each line item in the calcul ‘ :whatJth—for how it is calculated. Is the design of the retaining wall OK? 1“ “Ola PW 5h99_'9_...¥9ujmpr it- (7 ‘/-Deat§ («a Mint of w Foch-*1 \tsti-F) /-' / T. Mt Vl’l’ of it, #\\ It: silt); 9‘ pipe rclruJoxll \l‘ll — )5??? 54T— “l t \ wr a? W horn, __u_"-" Tgrfigfi MA Slab l” 7 {one Lamina l slat}, _ _._r, ,...—...V. 1‘3“ /7 \ T‘bJflA j -‘ .. . r._r«--w--....w._._______' a. t , ‘ (lad-filo“) 3 w. égwx‘35935176 < E Q1 er) Mar 6009,:Tt-QML‘htn-x Hf x. \ / is wet; haw. HM fwu» 4. “Kefibwtggvtl- milk For“? poéhiwt} em m Wall. it will 5/ cue-Haw - _ « dad-u nth M Weir ‘ ‘ C o \J ‘Force' '3: - 1 Mg ‘3 odor JrW‘n WW-OTM : ) .: V3933 a bat aucyg W mafi‘l’lfl? Tome /LL€U€fr\tm/\ Mavwvt ts law‘s/Fr! ‘ wuml's - I lei: ‘1 ‘ rowrwmmj (lastslmswxo rem- F/éqgg) = mm C l) 432m no?) H ’5 9E. W math 7%; cookware am at Mn .. 2. Given a steel simple beam, as shown, what are the bending moment and deflection at the mid-span? If a tensile force (F) of 100 kips is applied at the roller, how would the mid-span bending moment be affected? _ \O‘VI ___..—.-——E' ’ m ’L rent-n in -i - . .. / Walter F. Moore and Assocrltes filo-254—194n I, uzrznrluud It DH I... w _ ARCH 411 .,_<-:: /Dr. Jeff Guh University of Southern California I 1 ’07 I School of Architecture Homework 5: Due Tue., Mar. 7, 2006 1. Given the geometry of a dinosaur, as s ' bones. Assume its weight (W) is 5000 lbs and is concentrated at its geometric center hatiway between its legs. The diameter of the spinal chord is 8 inches. The jig diameter of the leg bone is 6 inches (don't forget it has four legs.) If the bone LI. K 29-17 material can support a maximum tensile stress of 40 psi and a compressive stress of 120 psi, do yo thin ani ' fn pain (overstressing its bones)? ' +4: T= #233 8L, -: 5000 2‘5 1 <3 ( 9’) I' 13500 k_@ :F i’Lgao r \ng I ' l I f _ idieeliwm 7r: I/srrri “WK ' i _ t - Z a r @._/_ ‘5: MW- swear-r:— CEEV (33-3)) (is?) C:T t Visa/“Th A steel cable. ‘A’ in diameter. is loaded by a concentrated force of 10,000 lb.. as shown. The total span is 20 it. What will be the tensile force in the cable. if its length is 21 it when w, ?- free of stress? How will its tensile force change if we use a longer cable. say 22 ft in #08 [wt length? Show the force diagram (Maxwell diagram) for your analysis. is it necessary to '2» ll" rz/ consider the elongatiorl of the cable under tensile stress for this analysis? Why? ® mica 2 Lee; Force, = «wan em; ML 91 M r = F 2 9 WI 9’ “Lem \ flu“ cans 13W «MW; armor—hen @ \ijr-MLSQS Mm 391+!) [90.3 [6‘ Gain—L65 F: lcfiowfi Afa/ M University of Southern California ARCH 411 School of Architecture Dr. Jeff Guh Homework 6: Due Tue., Mar. 14, 2006 a 1. Analyze the three-hinge semi—circular arch, as shown. Evil 6) 2 M» :O ' 0 =0 mm.» A a) Moot”) * “B‘OJNEO” ram“ V 6:: 25“» a? Mo @ 7 (1e \lA" VB 'ioo : An arch supports the design vertical load F, as shown. Whatare the reactions RA and RB in the footing? What are the forces HA and H3 in the grade beam (tie beam)? Sam» M" iii F__—___—_——-——ir AREH 411 University of Southern California School of Architecture ‘ Dr. Jeff Guh ________,._.——-—-—-— Homework 7: Due Tue., Mar. 28, 2006 t , indicate the reactions at the pressive force in the arch, Analyze the three hinge parabolic arch as shown. In yo ans supports, the maximum bending moment in the arch, the maximum com and the minimum compressive force in the arch (Viififcc) Vu‘dfifvg’gf {0 k/' viii c look-350’ ’0 I6/: ' 150 '(7’0' ‘3 200k 4,50} 50900“ ‘I 56,00514 f lb W : WNW/L ., \iwfooor/ i/ Unrversnty or bout‘nern California School of Archuuture Homework 8: Due Thu, Apr. 6, 200E: Z? Given: A 20” by 36" prestressed concrete beam has a span of 80 feet and a parabolic tendon profile, as shown. Concrete unitweight is 125le per cubic foot (sand'iight weight concrete). Find: (1) How much effective prestress should be specified so that the weight of the beam can be completely balanced? (2) What are the bending stress profiles at the mid-span and end sections of the beam under i 5 weight and prestress? ( hat are the bending stress profiles at the mid-span and end sections of the beam under its weight and prestress and a live load 800 #lft? ( \Kzam we».ij “(00* go“ 1:350“ :710“ woo/726" = 55 psi jot-’r “Nd O 4/ 20/069 /}/ University of Southern California HARE: :H Schoou of Architecwre m . Jcll uw‘: . -. .. ____...._..c_____ ._ ___‘H,._m_.___...——.__r is.,__,A Homework 9: Due Thu., Apr. 20, 2006 This is an interesting problem to illustrate the underlying concept of prestress. Given a 5” by ‘5” concrete column prestressed with al” diamter steel bar, as shown. The yielding strength of the steel is 160 ksi. Prestress in the steel bar is 100 kips. 1. Before any external tensile force is applied to the colu n. what arg the stresses in concrete and steel? 7 J00” f ' ' ‘0 . s : .3 its (5451 2. What is the largest tensile force (F) thecolumn can support without causing any cracking in the concrete? Upon the formation of the first crack in concrete, what are the stresses in concrete and steel?~ 7, a) 100K [:1 " b) (m UL 2 O ' 3. What is the column’s ultimate stiength? The column reaches its ultimate strength when the concrete is totally cracked and the steel is about to yield. gal i: (":3 t (to PM” 9“?”6’55 no 541314 \‘3 IOOV‘VS loo ice? (.7393 4— mo : 2125.4, 42 ...
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ARCH 411 Spring 2006 Guh Homework 1-8 - ”V¢ University...

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