Structural Steel Designers Handbook Part 9 pot

... 49. 6§ 40 2 59. 5§ 29. 1 346.0§ 38.8 337.4§ 41.4§ 4 49. 8§ 55.2§ 50 334.2§ 31.5 445.6§ 42.0 470 .9 43 .9 627 .9 58.5§ 60 418.5 33 .9 558.0 45.2 604 .9 45.6§ 806.5§ 60.8§ 70 530.3 36.3 707.0 48.4 7 39. 2§ ... 4,100.0 90 .0 3,075.0 67.5 4,100.0 90 .0 220 3,646.5 72.3 4,862.0 96 .4 3,646.5 72.3 4,862.0 96 .4 240 4,266.0 77.1 5,688.0 102.8 4,266.0 77.1 5,688.0 102.8 260 4 ,93 3.5 81 .9 6,57...

Ngày tải lên: 10/08/2014, 12:21

Ngày tải lên: 10/08/2014, 12:21

... Gate U.S.A. 193 7 4200 Truss Thousand Island U.S.A. 193 8 800 Plate girder Deer Isle U.S.A. 193 9 1080 Plate girder Bronx-Whitestone U.S.A. 193 9 2300 Plate girder Long’s Creek Canada 196 7 713 Plate ... of 8.18 8. 19 8.21 8.22 panel-zone shear in 5. 89 9.27 rigid-grame 3.61 3.62 seismic loads for 9. 24 9. 25 shapes commonly used for 7.1 7.5 slenderness ratios of 3 .95 6...

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... 83 .91 0 Ϫ1.165 83 .91 yAC MЈ 0 83 .91 8056 0 Ϫ83 .91 4028 zAC ϭ FЈ Ϫ201.4 0 0 201.4 0 0 xCA Ά FЈ ·΄ 0 Ϫ1.165 Ϫ83 .91 0 1.165 Ϫ83 .91 ΅ yCA MЈ 0 83 .91 4028 0 Ϫ83 .91 8056 zCA Ϫ1.1117 Ϫ224 .9 Ϫ0 .99 78 ... system (Fig. 99 a). A two-mass system interconnected by weightless springs (Fig. 3 .99 b) represents a two-degree-of-freedom system. The beam with the uniformly distributed mass in Fig....

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... 2 million ن A63 37 24 24 B 49 29 18 16 B Ј 39 23 15 12 C35 21 13 10 D28 16 10 7 E22 13 8 5 E Ј 16 9 6 3 F15 12 9 8 *As specified in the AISC ASD specification for structural steel buildings. †Equivalent ... flat roof with a steel deck supported on steel purlins may be considered stable, and no further investigation is required if Eqs. (6 .93 ) and (6 .94 ) are satisfied: C ϩ 0.9C Յ...

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... Thicknesses for Cold-Formed Steel Gage designation Design thickness, in 28 0.01 49 26 0.01 79 24 0.02 39 22 0.0 299 20 0.03 59 18 0.0478 16 0.0 598 FIGURE 8.1 Cold-formed steel decking used in composite ... in p Ί 0 .9 ϫ 36 ϫ 28 ϫ 41 For use in Eq. (7.48), n Ј ϭ /4 ϭ 4.0͙(16.04 ϫ 15. 89) X ϭ [(4 ϫ 16.04 ϫ 15. 89) /(16.04 ϩ 15. 89) 2 ][1731/(0.6 ϫ 0.85 ϫ 4.0 ϫ 868)] ϭ 0 .98 ␭ ϭ (...

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... element. (Source: Specification for the Design of Cold-Formed Steel Structural Members, Amer- ican Iron and Steel Institute, Washington, DC, 199 6, with permission.) For flexural members, when initial ... com- pression. (Source: Specification for the Design of Cold-Formed Steel Structural Members, American Iron and Steel Institute, Washington, DC, 199 6, with permission.) b ϭ b /(3 Ϫ...

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... ϭϪ0.1 ϫ 12 ϫ 1, 297 (15) /(300 ϫ 66.03) L Total: ϭϪ26 ϭϪ12 ϭϪ18 Ϫ56 TABLE 12.41 Steel Stresses in G 1 , ksi Top of steel (compression) Bottom of steel (tension) DL:ƒ ϭ 1.767 ϫ 12 / 1 ,99 2 ϭ 11.03 b SLD:ƒ ... 12.47, maximum shear is 114 .9 kips. Still needed is the static moment Q of the flange area: 3 Q ϭ 12 ϫ 1 ϫ 24.5 ϭ 294 in Then, the shear is VQ 114 .9 ϫ 294 v ϭϭ ϭ1. 89 kips per...

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... Ad 2 I o I Steel section 82.4 18 ,90 0 18 ,90 0 Concrete 76.5 ϫ 8.5/ 8 81.3 163.7 24.51 1 ,99 3 1 ,99 3 48,840 490 49, 330 68,230 d 8 ϭ 199 3/ 163.7 ϭ 12.17 in Ϫ12.17 ϫ 1 ,99 3 ϭϪ24,260 I ϭ 43 ,97 0 NA Distance ... of steel ϭ 18.26 Ϫ 12.17 ϭ 6. 09 in Bottom of steel ϭ 18.26 ϩ 12.17 ϭ 30.43 in Top of concrete ϭ 6. 09 ϩ 2 ϩ 8.5 ϭ 16. 59 in Section moduli Top of steel Bottom of steel...

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... 13 ,98 0 Railings and parapets 1, 090 Floor steel for roadway 3, 397 Floor bracing 392 Arch ribs 2,563 Arch bracing 1,6 39 Arch hangers 94 Arch ties 3,400 Miscellaneous—utilities, excess, etc. 5 89 TOTAL ... traffic. Until 190 0, stone continued as a strong competitor of iron and steel. After 190 0, concrete became the principal competitor of steel for shorter-span arch bridges. De...

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