Sổ tay kết cấu thép - Section 4

... kip-ft2y2,ft2N cos␣kips cos2␣0. 048 7 12,665 829.0 0. 24 1.000. 146 2 9,6 34 736.2 0.72 0.980. 243 6 6 ,46 9 568.0 1.17 0. 940 . 341 1 3,591 358.0 1.58 0.890 .43 85 1,381 1 54. 8 1.92 0.820.5360 15919.9 2.20 0.74TOTAL ... any section due to loads on the archyϭvertical ordinate of section measured from immovable hinge 4. 4SECTION FOURIϭmoment of inertia of arch cross sectionAϭcross-sec...

Ngày tải lên: 18/10/2012, 16:13

... Hot-rolled30 30 49 2133 33 52 1836 36 53 1 740 40 55 1 545 45 60 1350 50 65 1155 55 70 9A606 Hot-rolled, cut length 50 70 22Hot-rolled, coils 45 65 22Cold-rolled 45 65 22A607 Hot- or cold-rolled45 ... and 5 42 63 21 18A588 4 maximum 1–5 50 70 21 18Over 4 to 5 max 1–5 46 67 21 —Over 5 to 8 max 1–5 42 63 21 —A572Grade 42 6 maximum 1–5 42 60 24 20Grade 50 4 maximum 1–5 50 65 21...

Ngày tải lên: 18/10/2012, 16:13

... designed as bearing-type, fully-tightened, loose-to-slip or slip-critical connections (see Art. 5.3). Bearing-type connections have a higher allowable load ordesign strength. Slip-critical connections ... shipping.2.10 BUILT-UP SECTIONSThese are members made up by a fabricator from two or more standard sections. Examplesof common built-up sections are shown in Fig. 2.2. Built-up members are s...

Ngày tải lên: 18/10/2012, 16:13

... time-dependentdisplacement function s(t)ϭt4Ϫ2t2ϩ1. By Eq. (3.19), the velocity of the particle wouldbeds3v ϭϭ4tϪ4tdtBy Eq. (3.20), the acceleration of the particle would be2dvds2aϭϭ ϭ12t 42 dt ... are 3.1 8SECTION THREE1␧ ϭ[ƒϪ␯(ƒϩƒ )] (3 .40 a)xxyzE1␧ ϭ[ƒϪ␯(ƒϩƒ )] (3 .40 b)yyxzE1␧ ϭ[ƒϪ␯(ƒϩƒ )] (3 .40 c)zzxyESimilarly, shear strain␥is linearly proportional to shear stressvvvvxy yzzx␥ϭ␥ϭ␥ϭ(3 ....

Ngày tải lên: 18/10/2012, 16:13

... E7016-X,E7018-XAWS A5.17 or A5.23§F7XX-EXXXF7XX-EXX-XXAWS A5.18ER70S-XAWS A5.20or A5.29§E7XT-X(ExceptϪ2,Ϫ3,Ϫ10,Ϫ13,Ϫ 14, ϪGS)E7XTX-XA572 grades 60 and 65 AWS A5.5§E8016-X, E8015-XE8018-XAWS A5.23§F8XX-EXX-XXAWS ... 50E70XXE70XX-XF7XX-EXXX orF7XX-EXX-XXAWS A5.18ER70S-XE7XT-X(ExceptϪ2,Ϫ3,Ϫ10,Ϫ13,Ϫ 14, ϪGS)E7XTX-XXA572 grade 42 and 50, andA588‡ (4 in. and under)AWS A5.1 or A5.5§E7015, E7016,E7...

Ngày tải lên: 18/10/2012, 16:13

... pcf):Normal weight units(135 pcf) :47 0222 943 241 655273133 343 742 573533363 841 47 646 49638523 540 4 345 49567 745 50535559668786786105 042 495356617098 546 16568738211010 841 081151551 248 4958636672 841 1963727780869813312102131*Weights ... 20ϩ9Ϫ 24 10Ϫ26ϩ12Ϫ33ϩ15Ϫ39ϩ18 47 ϩ21Ϫ55ϩ 24 64 28Ϫ73ϩ32Ϫ83ϩ36Ϫ 941 00ϩ8Ϫ18ϩ9Ϫ20ϩ11Ϫ25ϩ 14 30ϩ16Ϫ36ϩ19 42 ϩ22 49 ϩ26Ϫ57ϩ29Ϫ 64 33Ϫ7310ϩ9Ϫ37ϩ10 41 ϩ13...

Ngày tải lên: 18/10/2012, 16:13

... following:Wϭ1 .4[ 73 (40 ϩ25)/2 45 ]ϭ33 84. 5 lb per ftuWϭ1.2[73 (40 ϩ25)/2 45 ]ϩ1.6ϫ30 (40 ϩ25)/2u 44 61 lb per ft (governs)The factored moment then is2M 4. 461(30) /8ϭ501.9 kip-ftuTo select for beam AB a wide-flange section ... Eq.(7 .4) , the design strength is␾Pϭ0.75ϫ65 41 .88ϭ2 042 kipsϽ2280 kips—NGnTry a W 14 193 with Agϭ56.8 in2, tƒϭ1 .44 in, and twϭ0.89 in. The net area isAϭ56.8Ϫ(2ϫ1...

Ngày tải lên: 18/10/2012, 16:13

... expensive normal-weight concrete may beused instead of lightweight concrete. Therefore, the two options that are frequently consid-ered for a 2-hour-rated, noncellular floor-deck system are 31 4- in lightweight ... Two-hour fire-rated floor systems, with cold-formed steel deck. (a) With lightweightconcrete fill; (b) with normal-weight concrete fill.the metal deck without spray-on fire protection a...

Ngày tải lên: 18/10/2012, 16:13

... their serviceability after an 9. 6SECTION NINETABLE 9.1Coefficient CeforEq. (9 .4) Height, ft*ExposureCD0–15 1.06 1.3920 1.13 1 .45 25 1.19 1.5030 1.23 1. 544 0 1.31 1.6260 1 .43 1.7380 1.53 1.81100 1.61 1.88120 ... static-force method is a single-mode design method, even though long-period structures are influenced by higher-moderesponse, and Ftsimulates the effect of higher-mode response on...

Ngày tải lên: 18/10/2012, 16:13

... singly-, dou-bly-, and point-symmetric sections is given by Eq. 10.25. These provisions apply to I-, Z-,C-, and other singly-symmetric sections, but not to multiple-web decks, U- and box sections.Also, ... cold-forming. Either full section tension tests, full section stub column tests, or an analyticalmethod can be employed. Important parameters include the tensile-strength-to-yield-stres...

Ngày tải lên: 18/10/2012, 16:13