Basic Theory of Plates and Elastic Stability - Part 3 ppt

... (kips) C8x11.5 3. 38 0.220 0.571 0.90 2.6 1 13. 1 C9x 13. 4 3. 94 0. 233 0.601 0.90 3. 07 133 .5 C8x 13. 75 4.04 0 .30 3 0.5 53 0.90 3. 02 131 .4 a Equation 3. 6 b Equation 3. 5, Figure 3. 4b From the last column of the ... cover plates with widths of 13 in. as shown in Figure 3. 8a. Denoting t as the thickness of the plates, we have (r y ) built-up =  (I y ) W-shape + (I...

Ngày tải lên: 22/07/2014, 18:22

... the types ofgeometric imperfectionsare out -of- straightness andout -of- c  1999 by CRC Press LLC FIGURE 28.29: Top and seat angle connection details. FIGURE 28 .30 : Comparison of moment-rotation ... 3. 0 73 0.695 for log 10 θ o < 3. 0 73 Double web-angle connection 1 .32 2 log 10 θ o + 3. 952 for log 10 θ o > −2.582 0.5 73 for log 10 θ o < −2.582 Top- and seat-angle con...

Ngày tải lên: 22/07/2014, 18:22

... Figure 24. 13 shows the crack-like notch formed by the combination of a lack -of- fusion defect and the unfused edge of the backing bar. On a cross-section at the deepest point of the lack -of- fusion ... type of backing bar notch was a significant factor in the brittle fracture of WSMF connections in the Northridge earthquake [33 , 53, 55]. Figure 24.5 shows a cross-section of...

Ngày tải lên: 22/07/2014, 18:22

... 0 (17 .31 ) or a 11 a 22 a 33 + a 21 a 32 a 13 + a 31 a 23 a 12 − a 31 a 22 a 13 − a 21 a 12 a 33 + a 11 a 23 a 32 = 0 (17 .32 ) where a 11 = C + 6 G A − G AC1 S 2 C (17 .33 ) a 22 = C + 6 G B − G BC3 S 2 C (17 .34 ) a 33 =−2  C ... 17.80. K AB =   π 2 (29,000) (30 ,000) (35 3) (39 6) 2  35 3 + 1 93 396  1 5(84.06) + 0.198  = 6.55 K FG =   π 2 (29,000) (30...

Ngày tải lên: 22/07/2014, 18:22

... between center of gravity of a section A ∗ i and plastic neutral y-y axis y ∗ i = distance between center of gravity of a section A ∗ i and plastic neutral x-x axis A ∗ i = cross-section area ... = 4 ( A close ) 2  b i t i (16 .33 ) For an open thin-walled section J =  b i t 3 i 3 (16 .34 ) where A close = area enclosed within mean dimension for a box b i = length of a par...

Ngày tải lên: 22/07/2014, 18:22

... 27.5 29.0 30 .5 32 .0 33 .0 34 .0 34 .5 36 .5 39 .0 β 2.45 2 .38 2. 43 2 .37 2 .33 2.27 1.92 1.67 1. 43 1.18 1.14 0.250 θ 28.0 28.5 29.0 30 .0 31 .0 32 .0 33 .0 34 .0 35 .5 38 .5 41.5 β 2 .36 2 .32 2 .36 2 .30 2.28 2.01 ... 1.65 0.100 θ 23. 5 23. 5 23. 5 23. 5 24.0 26.5 30 .5 34 .0 36 .0 38 .0 39 .0 β 6.50 5.87 5 .31 3. 26 2.61 2.54 2.41 2.28 2.09 1.72 1.45 0.125 θ 20.0...

Ngày tải lên: 22/07/2014, 18:22

... 1 23 W - 9 - Vacaville, Winters, CA 1892 5 16 14 N 1 43 E - - - Agana, Guam 1897 5 31 5.8 8 Giles County, VA (mb from STA) 1899 9 4 60 N 142 W 8 .3 - - Cape Yakataga, AK 1906 4 18 38 N 1 23 W 8 .3 ... more?) 1915 10 3 40.5 N 118 W 7.8 - Pleasant Valley, NV 1925 6 29 34 .3 N 120 W 6.2 - 13 8 Santa Barbara, CA 1927 11 4 34 .5 N 121 W 7.5 9 Lompoc, Po...

Ngày tải lên: 22/07/2014, 18:22

... θ B ,θ C , and ψ from Equations 2 .32 into Equations 2. 23 to 2.28 we get, M AB = 10.10 ft-kips M BA = 93 ft-kips M BC =− 93 ft-kips M CB = 90 ft-kips M CD =−90 ft-kips M DC =−62 ft-kips 2.4 .3 Moment ... ν ∂ 2 w ∂x 2  M xy =−M yx = D(1 − ν) ∂ 2 w ∂x∂y (2 .36 ) V x = ∂ 3 w ∂x 3 + (2 − ν) ∂ 3 w ∂x∂y 2 (2 .37 ) V y = ∂ 3 w ∂y 3 + (2 − ν) ∂ 3 w ∂y∂x 2 (2 .38 ) Q x =−D ∂ ∂x  ∂...

Ngày tải lên: 22/07/2014, 18:22

... Milled Surfaces / 33 2 Bridge Fasteners / 33 3 Composite Construction in Highway Bridges / 33 3 Number of Connectors in Bridges / 33 7 Allowable-Stress Design for Shear in Bridges / 33 9 Maximum Width/Thickness ... Design of Concrete Columns / 124 Chapter 4. Piles and Piling Formulas 131 Allowable Loads on Piles / 132 Laterally Loaded Vertical Piles / 133 Toe Capacity Load / 134...

Ngày tải lên: 22/07/2014, 18:22

... LLC FIGURE 30 .38 Examples of steel and reinforced-concrete (SRC) construction. (Courtesy of NIST [9].) FIGURE 30 .39 Ten-story steel and reinforced-concrete (SRC) building with third-floor collapse ... LLC is a three-span, continuous, double-steel box with span lengths of 45 m, 75 m (between Pier 149 and 150), and 45 m. Pier 149 is a 10-m tall × 3. 5-m square, reinforced-conc...

Ngày tải lên: 22/07/2014, 18:22