Sổ tay kết cấu thép - Section 10

... singly-, dou-bly-, and point-symmetric sections is given by Eq. 10. 25. These provisions apply to I-, Z-,C-, and other singly-symmetric sections, but not to multiple-web decks, U- and box sections.Also, ... testing. 10. 1 0SECTION TENFIGURE 10. 3 Effective width concept. (a) Buckling of grid model; (b) buckling ofplate; (c) stress distributions. COLD-FORMED STEEL DESIGN10.1 110. 7 MAXIMUM...

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. 8SEC...

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 ... and 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...

Ngày tải lên: 18/10/2012, 16:13

... of a structure.3.8 STRESS-STRAIN DIAGRAMSSuppose that a homogeneous steel bar with a constant cross-sectional area A is subjected totension under axial load P (Fig. 3.10a). A gage length L is ... forces doesnot apply.)A free-body diagram of a portion of the truss to the left of section AA is shown in Fig.3.7b). The internal forces in the truss members cut by the section must balance the ....

Ngày tải lên: 18/10/2012, 16:13

... any section due to loads on the archyϭvertical ordinate of section measured from immovable hinge 4. 4SECTION FOURIϭmoment of inertia of arch cross sectionAϭcross-sectional area of arch at the sectionEϭmodulus ... determined, the stresses at any section of the arch can be foundby application of the equilibrium laws (Art. 4.4).Circular Two-Hinged Arch Example. A circular two-hinged arch...

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, 10, Ϫ13,Ϫ14,ϪGS)E7XTX-XA572 grades 60 and 65 AWS A5.5§E8016-X, E8015-XE8018-XAWS A5.23§F8XX-EXX-XXAWS ... 50E70XXE70XX-XF7XX-EXXX orF7XX-EXX-XXAWS A5.18ER70S-XE7XT-X(ExceptϪ2,Ϫ3, 10, Ϫ13,Ϫ14,ϪGS)E7XTX-XXA572 grade 42 and 50, andA588‡ (4 in. and under)AWS A5.1 or A5.5§E7015, E7016,E7018,...

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 ... 19Terrazzo (1-in) on stone-concrete fill 32Terrazzo (1-in), 2-in stone concrete 32Wood block (3-in) on mastic, no fill 10Wood block (3-in) on1⁄2-in mortar base 16Floors, wood-joist (no plaster) d...

Ngày tải lên: 18/10/2012, 16:13

... 2(184.6)ϭ1,591 kip-inϭ132.6 kip-ftϽ277.5 kip-ftThe W21ϫ50 does not have adequate capacity. Therefore, trials to find the lowest-weightlarger size must be continued. This trial-and-error process can ... the W12ϫ87 of grade 50 steel is the most economical wide-flange section. 7.6.2 ASD for W Section with Axial CompressionThe dead- plus live-load axial compression totals 420ϩ120ϭ540 kips (Art....

Ngày tải lên: 18/10/2012, 16:13

... expensive normal-weight concrete may beused instead of lightweight concrete. Therefore, the two options that are frequently consid-ered for a 2-hour-rated, noncellular floor-deck system are 31⁄4-in lightweight ... 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...

Ngày tải lên: 18/10/2012, 16:13

... 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 earthquake-load ... of the mass matrix. The multidegree-of-freedom equations are coupled.They can be solved simultaneously by a number of methods. However, the single-degree-of-freedom response spectrum method is...

Ngày tải lên: 18/10/2012, 16:13