Erection Bracing of Low-Rise Structural Steel Buildings phần 5 pps

... (1.7) 2 706 .5 in. 2 0. 85 (1) 706 .5 (4) ( 350 0) 1/2 (1/1000) 142.1 kips 142.1 ÷ 4 = 35. 5 kips per rod Design strength in shear: 0. 75( 0.7 85) 58 = 34.1 kips 0. 85 (800) (0.7 85) (1) ( 350 0) (1/1000) = 31 .5 kips Combining ... 1.6 25 in. r = 0. 25 (d) = 0. 25( 1) = 0. 25 in. kL/r = 1(1.6 25) 70. 25 = 6 .5 = 30 .53 ksi per LRFD Table 3-36 Bending: Moment arm = 0 .5 (3 - (0.3 7...

Ngày tải lên: 08/08/2014, 13:20

... (in.) 4 18 13 10 8 6 5 4 5 43 32 24 19 16 13 11 6 74 55 42 33 27 22 19 Span ft. 30 35 40 45 50 55 60 Top Chord 2 ½ 3 1.8 3 .5 1.2 2 .5 1.2 1.8 0.6 1.2 0.6 1.2 - 1.2 - - Angle Leg Length, (in.) 3 ½ 4 7.1 10.6 5. 3 7.6 4.1 5. 9 2.9 4.7 2 .5 3 .5 2 .5 2.9 1.8 2 .5 5 6 25. 3 43 .5 18.8 32.4 14.1 ... example. Span ft. 30 35 40 45 50 55 60 Top 21/2 3 2 2 1 1 - - Chord...

Ngày tải lên: 08/08/2014, 13:20

... publisher. TABLE OF CONTENTS ERECTION BRACING OF LOW RISE STRUCTURAL STEEL BUILDINGS 1. INTRODUCTION 1 1.1 Types of Systems 1 1.2 Current State of the Art 1 1.3 Common Fallacies 2 1.4 Use of This ... publication or any part thereof must not be reproduced in any form without permission of the publisher. Steel Design Guide Series Erection Bracing of Low-Rise...

Ngày tải lên: 08/08/2014, 13:20

... the requirements of ACI 318 or ACI 53 0 as appropriate. The wall itself should be properly braced to secure it against loads im- posed during the erection of the steel framing. The erection operation, ... the anchor rods to the center of the shim stack. See Figure 4.14. See discussion of the use of shims at the beginning of this section. © 2003 by American Institute of S...

Ngày tải lên: 08/08/2014, 13:20

... face of the nut Check a ½ inch thick plate, 5 inches wide F y = 36 ksi Z x = (0 .5) 2 5/ 4 = .313 in. 3 Fy = 36 ksi A g = 0 .5 (5) = 2 .5 in. 2 Combining flexure and tension: The strength of the ... us- ing the 0. 75 factor for an exposure period of less than 6 weeks. Calculating: q z = 0.00 256 (0.46)[1.0(0. 75) 75] 2 = 3.73 psf F = 3.73(1 .54 )(1 .5) (Af) = 8.61(A f )lbs....

Ngày tải lên: 08/08/2014, 13:20

... in. C 50 30 1 W8X31 0.8 75 12X12 5. 5X5.5X17 Anchor Rods with Leveling Nuts Anchor Rod, Diameter, in. Anchor Pattern, in. x in. Hooked or Nutted Embedment, in. Cover Below Anchor, in. 0. 75 11X11 4 ... in. B 50 45 1 W12X 65 1.0 22X22 5. 5X5.5X17 Anchor Rods with Leveling Nuts Anchor Rod, Diameter, in. Anchor Pattern, in. x in. Hooked or Nutted Embedment, in. Cover Below Anchor, in....

Ngày tải lên: 08/08/2014, 13:20

... American Institute of Steel Construction, Chicago, Illinois 11. Fisher, James M. and West, Michael A., " ;Erection Bracing of Structural Steel Frames", Proceedings, National Steel Construction ... Institute of Steel Construction, Chica- go, Illinois, 1992 14. "Manual of Steel Construction - Load and Resis- tance Factor Design", Vols. I and II, 2nd Edi...

Ngày tải lên: 08/08/2014, 13:20

... Institute of Steel Construction, Inc. All rights reserved. This publication or any part thereof must not be reproduced in any form without permission of the publisher. Table A-7 Tension Resistance of ... 2003 by American Institute of Steel Construction, Inc. All rights reserved. This publication or any part thereof must not be reproduced in any form without permission of the pub...

Ngày tải lên: 08/08/2014, 13:20

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Ngày tải lên: 09/08/2014, 19:22

... (1.7) 2 706 .5 in. 2 0. 85 (1) 706 .5 (4) ( 350 0) 1/2 (1/1000) 142.1 kips 142.1 ÷ 4 = 35. 5 kips per rod Design strength in shear: 0. 75( 0.7 85) 58 = 34.1 kips 0. 85 (800) (0.7 85) (1) ( 350 0) (1/1000) = 31 .5 kips Combining ... Seat Design Strength (kips) 30 10 15 22 30 30 Controlling Element Bolts Framing Angles Framing Angles Framing Angles Bolts Bolts Span (ft.) 20 25 30 35...

Ngày tải lên: 27/06/2014, 14:20