Sổ tay kết cấu thép - Section 12

... assume a 9-in-thick slab, weight 112 lb/ft2plus 5 lb/ft2for theadditional thickness of deck concrete in the stay-in-place forms. The 9-in-thick slab consists 12. 6SECTION TWELVEof a 73⁄4-in base ... determined with the section moduli of the composite sectionwith nϭ24 for SDL from Table 12. 2a and nϭ8 for LLϩI from Table 12. 2b (Table12.3b). 12. 1 2SECTION TWELVETABLE 12. 2Compos...

Ngày tải lên: 18/10/2012, 16:13

... grades of uncoated, hot-rolled, carbon-steel sheetsand strip intended for structural use.A606 covers high-strength, low-alloy, hot- and cold-rolled steel sheet and strip with en-hanced corrosion resistance. ... referred to as pressure-vessel-quality steels. Generally, a greater numberof mechanical-property tests and additional processing are required for pressure-vessel-quality steel. 1. 8S...

Ngày tải lên: 18/10/2012, 16:13

... 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 ... shipping.2.10 BUILT-UP SECTIONSThese are members made up by a fabricator from two or more standard sections. Examplesof common built-up sections are shown in Fig. 2.2. Built-up members are...

Ngày tải lên: 18/10/2012, 16:13

... axisϬbh31. 0121 121.0 cos␣b 1sin␣ϩ2h 2cos2␣21 b 1sin␣ϩͩ 12 h 121 ϪbЈ2t1Ϫ1Ϫͩͪͩͪbh1231 bЈ2t1Ϫ1Ϫ1Ϫͫͩ ͪͩ ͪ 12 bhϭ0.785398␲ 412 0.049087␲642␲h11Ϫͩͪ24 h124␲h11Ϫͩͪ464 h23358175233581751Ϫh1h1231 h11Ϫͩͪ 312 h GENERAL ... of Sections (Continued )AϭAreabh cϭdepth to centroidϬhIϭmoment of inertia about centroidalaxisϬbh31Ϫbh11ͩͪbh1231 bh111Ϫͫͩͪ 12 bh1ϪbЈh11Ϫͩͪͩͪbh1231 bЈh11Ϫ1Ϫͫͩ ͪͩͪ 12 bh1Ϫbt11Ϫͩ...

Ngày tải lên: 18/10/2012, 16:13

... L/N123456789 C121 1 48 3128 778486 4123 91171116117119768 5123 4324540234572684040687245234045323750 6123 45253839311738646956313969816939315669643817313938253888 7123 4567211 5128 11788471152002322161648 8128 23228827921611711721627928823 2128 88164216232200115478811 7128 1157214,406 8123 45674981959481593181144175176153 1125 995175225234207153819417623425623427694811532072342251759559 1121...

Ngày tải lên: 18/10/2012, 16:13

... 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 ... 18-C1,C2§E8016, 18-C3§E8018-W§AWS A5.17 orA5.23F7A0-EXXX,F8A0-EXXX§AWS A5.20or A5.29E7XT-1,5E8XT-1,5-NiX, WA852 / M270M grade485W‡AWS A5.5E9018-MAWS A5.23F9A0-EXXX-XAWS A5.29E9XT1-...

Ngày tải lên: 18/10/2012, 16:13

... finishesAsphalt block (2-in),1⁄2-in mortar 30Cement finish (1-in) on stone-concrete 32fillCeramic or quarry tile (3⁄4-in) on1⁄2-in 16mortar bedCeramic or quarry tile (3⁄4-in) on 1-in 23mortar bedFrame ... 600Flat or rise less than 4:12Arch or dome with rise lessthan1⁄8of span20 16 12Rise 4 :12 to less than 12: 12 16 14 12Arch or dome with rise1⁄8span to less than3⁄8spanRise 12: 12 or greate...

Ngày tải lên: 18/10/2012, 16:13

... at the beam-column connection areDead-load major-axis momentϭ180 kip-ftLive-load major-axis momentϭ75 kip-ftDead-load minor-axis momentϭ75 kip-ftLive-load minor-axis momentϭ40 kip-ftThe column ... inMϭ242.3 12. 567ϩ0.5(276.5Ϫ242.3)n276.5Ϫ242.3ϫ(15.69Ϫ0.345ͩͪ2ϫ1.898ϫ36ϭ3, 312 kip-in␾Mϭ0.85ϫ3 312/ 12ϭ234.6 kip-ftn3. PNA⌬AƒϭAƒ/2ϭ0.949 in below the top of the top flange:͚Qϭ208.2 kipsn␾Mϭ224.0 k...

Ngày tải lên: 18/10/2012, 16:13

... rigidity. Care should be 8.3 4SECTION EIGHTFIGURE 8.32 Cable roofs. (a) Cable-stayed cantilever roof; (b) single-layer cable-suspended roof;(c) double-layer cable-suspended roof. FLOOR AND ROOF ... Two-hour fire-rated floor systems, with cold-formed steel deck. (a) With lightweightconcrete fill; (b) with normal-weight concrete fill.the metal deck without spray-on fire protection and 21⁄2-in ......

Ngày tải lên: 18/10/2012, 16:13

... slope less than 2 :12 0.9 outward or 0.3 inward with roof slope between 2 :12 and 9 :12 0.4 inward with roof slope between 9 :12 and 12: 12ϭ0.7 inward with roof slope greater than 12: 12.Method 2 (Fig. ... static-force method is a single-mode design method, even though long-period structures are influenced by higher-moderesponse, and Ftsimulates the effect of higher-mode response on the...

Ngày tải lên: 18/10/2012, 16:13