Sổ tay kết cấu thép - Section 9
Sổ tay kết cấu thép - Section 9
... attaining LATERAL-FORCE DESIGN9.19FIGURE 9. 9 Hysteretic behavior of three steel frames. (a) Moment-resisting frame: (b) con-centric braced frame: (c) eccentric braced frame. 9. 2 0SECTION NINEFIGURE 9. 9 Continued.FIGURE ... an 9. 6SECTION NINETABLE 9. 1Coefficient CeforEq. (9. 4)Height, ft*ExposureCD0–15 1.06 1. 392 0 1.13 1.4525 1. 19 1.5030 1.23 1.5440 1.31 1.6260 1.43 1.7380 1.53...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 1
... %*A570 Hot-rolled30 30 49 2133 33 52 1836 36 53 1740 40 55 1545 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 ... beamsRelativeweightRelativematerial costA36 1.000 1.00 1.000 1.00A572 grade 42 0 .92 7 1.01 0 .90 3 0 .98 A572 grade 50 0.848 0 .95 0.805 0 .91 A588 grade A 0.848 1.04 0.805 0 .99 A852 0.7...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 2
... 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 ... A588, A514,A7 09, A852, A913, or A 992 . Such steels may be welded by any of several welding pro-cesses: shielded metal arc, submerged arc, gas metal arc, flux-cored arc, electroslag, electro...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 3
... magnitudes of the components of the acceleration vector a are 3.1 2SECTION THREE2dx͚Fxaϭϭ(3.29a)x2dt m2dy͚Fyaϭϭ(3.29b)y2dt m2dz͚Fzaϭϭ(3.29c)z2dt mTransformation of Eq. (3.27) into the form͚FϪmaϭ0 (3.30)provides ... forces doesnot apply.)A free-body diagram of a portion of the truss to the left of section AA is shown in Fig.3.7b). The internal forces in the truss members cut by the section...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 4
... 8 29. 0 0.24 1.000.1462 9, 634 736.2 0.72 0 .98 0.2436 6,4 69 568.0 1.17 0 .94 0.3411 3, 591 358.0 1.58 0. 890 .4385 1,381 154.8 1 .92 0.820.5360 1 591 9 .9 2.20 0.74TOTAL 33, 899 2,665 .9 7.83 5.372.0(33 899 )Hϭϭ12.71 ... any section due to loads on the archyϭvertical ordinate of section measured from immovable hinge 4. 4SECTION FOURIϭmoment of inertia of arch cross sectionAϭcross-s...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 5
... 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,Ϫ14,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,Ϫ14,ϪGS)E7XTX-XXA572 grade 42 and 50, andA588‡ (4 in. and under)AWS A5.1 or A5.5§E7015, E7016,E7018,...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 6
... V (mph)85 90 100 110 120 130 140 150 160 17010 9 17ϩ10Ϫ 19 13Ϫ24ϩ16Ϫ 29 19 34ϩ22Ϫ40ϩ25Ϫ46ϩ 29 53ϩ33Ϫ60ϩ37Ϫ68Roof 1 20 9 17ϩ10Ϫ 19 12Ϫ23ϩ15Ϫ28ϩ18Ϫ33ϩ21Ϫ 39 24Ϫ45ϩ28Ϫ52ϩ32Ϫ 59 36Ϫ67100ϩ8Ϫ16 9 18ϩ11Ϫ22ϩ14Ϫ27ϩ16Ϫ32ϩ 19 37ϩ22Ϫ43ϩ26Ϫ50ϩ 29 57ϩ33Ϫ64 6.20TABLE ... V (mph)85 90 100 110 120 130 140 150 160 17010 9 26ϩ10Ϫ 29 13Ϫ36ϩ16Ϫ43ϩ 19 52ϩ22Ϫ60ϩ25Ϫ70ϩ 29 81ϩ33 92 ϩ37Ϫ103Roof 2 20 9 24ϩ10Ϫ26ϩ12Ϫ33...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 7
... angles is2317Aϭ5.72Ϫ2ϫ⁄8ϫ⁄16ϭ4 .92 innandUϭ1Ϫ(x/L)ϭ1Ϫ(0 /9) ϭ1.0Ͼ0.9Therefore, Uϭ0.9The effective area is22AϭUAϭ0 .90 ϫ4 .92 ϭ4.43 inϾ3.72 in —OKen7.2.2 ASD for Double-Angle HangerThe dead load on the ... kip-ftFor an allowable stress Fbϭ0.66Fyϭ0.66ϫ50ϭ33 ksi, the required section modulusfor the floorbeam is3SϭM/Fϭ383.4ϫ12/33ϭ1 39. 4 inrbThe least-weight wide-flange section with S exceeding...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 8
... 8.1. 8. 2SECTION EIGHTTABLE 8.1Equivalent Thicknesses forCold-Formed SteelGagedesignationDesignthickness, in28 0.01 492 6 0.01 792 4 0.02 392 2 0.0 299 20 0.03 591 8 0.047816 0.0 598 FIGURE 8.1 Cold-formed ... 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...
Ngày tải lên: 18/10/2012, 16:13
Sổ tay kết cấu thép - Section 10
... 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