Structural Steel Designers Handbook Part 16 pot

Ngày tải lên: 10/08/2014, 12:21

... of specifications, designers should obtain advice from fabricators and contractors whenever possible. Also useful are steel- industry-developed rules-of-thumb intended to help designers. The following ... with two or more traffic lanes Concrete: On I-shaped steel beams S /7, S Յ 10† S /5.5, S Յ 14† On steel box girders W L ϭ 0.1 ϩ 1.7R ϩ 0.85 / N w ‡ Steel grid: Less than 4 in thick S...

Ngày tải lên: 10/08/2014, 12:21

... 11 .168 on masonry 5.60 11.64 11 .168 on steel 6.48 11.25 11 .166 (See also Bolts; Pins; Rockers; Rollers) bending: bridge loading combinations 11.13 11 .162 in bridges 11.25 11 .164 ... 11 .166 in bolts 6.28 11.26 1 .166 in rivets 6.28 11 .166 in threaded parts 6.28 tension 6.30 11.25 11 .164 welds 6.38 11.24 11 .164 11 .167 wind 6.51 (See also...

Ngày tải lên: 10/08/2014, 12:21

... system: F Ј 201.4 0 0 Ϫ201.4 0 0 xAC FЈ 0 1 .165 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 ... moment-curvature relationship [Eq. (3.79)] into Eq. (3 .161 ) gives 2 dy EI ϩ Py(x) ϭ 0 (3 .162 ) 2 dx 3.96 SECTION THREE 2 ␲ EA P ϭ (3 .167 ) 2 (KL/r) Equation (3 .167 ) also indicates t...

Ngày tải lên: 10/08/2014, 12:21

... 2 million ن A63 37 24 24 B49 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 ... the steel deck. The slab thickness above the steel deck must be at least 2 in. The AISC LRFD specification indicates that for ribs perpendicular to the steel beam, concrete bel...

Ngày tải lên: 10/08/2014, 12:21

... reinforced with localized steel plates, pipes, or angles (Fig. 8.15). (‘ Steel and Composite Beams with Openings,’’ Steel Design Guide Series no. 2, Amer- ican Institute of Steel Construction.) Composite ... Thornton-Tomasetti Engineers, New York, New York Structural- steel framing provides designers with a wide selection of economical systems for floor and roof construction. Stee...

Ngày tải lên: 10/08/2014, 12:21

... (b)in columns. (Source: Commentary on the Specification for the Design of Cold- Formed Steel Structural Members, American Iron and Steel Institute, Washington, DC, 1996, with permission.) Fig. 10.3c. As the ... on effective element. (Source: Specification for the Design of Cold-Formed Steel Structural Members, Amer- ican Iron and Steel Institute, Washington, DC, 1996, with permissio...

Ngày tải lên: 10/08/2014, 12:21

... Buckling. For a column of Grade 36 steel with this slenderness ratio and with bolted ends, the allowable compressive stress is 2 L 2 F ϭ 16. 98 Ϫ 0.00053 ϭ 16. 98 Ϫ 0.00053(110) ϭ 10.57 ksi ͩͪ a r Maximum ... 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 / 1,992 ϭ 11...

Ngày tải lên: 10/08/2014, 12:21

... section to: Top 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 Top of concrete S ... section to: Top of steel ϭ 30.75 Ϫ 7.25 ϭ 23.50 in Bottom of steel ϭ 31.50 ϩ 7.25 ϭ 38.75 in Top of concrete ϭ 23.50 ϩ 2ϩ 8.50 ϭ 34.00 in Section Modulus: Top of steel Bottom...

Ngày tải lên: 10/08/2014, 12:21

... a strong competitor of iron and steel. After 1900, concrete became the principal competitor of steel for shorter-span arch bridges. Development of structural steels made it feasible to construct ... (deceased), Richardson, Gordon and Associates, Pittsburgh, in Structural Steel Designer’s Handbook, 1st ed., McGraw-Hill Book Company, New York. 14 .16 SECTION FOURTEEN FIGURE 14.5 FREM...

Ngày tải lên: 10/08/2014, 12:21