Có 20+ tài liệu thuộc chủ đề "cấu trúc thép"
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I 10 Keyword Index. steel structure(s . tall building(s . tall building structure 897. thin-walled column 101. thin-walled member 881. thin-walled sections 983. thin-walled shell structure 639. thin-walled steel structure 63. thin-walled structure 209. three-dimensional analysis 513. three-dimensional behavior 101. three-dimensional degenerated shell element 587. Keyword Index I l l variation. This Page Intentionally Left Blank This Page Intentionally Left...
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ADVANCES IN STEEL STRUCTURES. The Second International Conference on Advances in Steel Structures 15-17 December 1999, Hong Kong, China. Elsevier Science Internet Homepage http://www.elsevier.nl (Europe) http://www.elsevier.com (America) http://www.elsevier.co.jp (Asia). ICASS '96, Advances in Steel Structures (2 Volume Set) ISBN . Structural Engineering World Wide 1998 (CD-ROM Proceedings with Printed Abstracts Volume, 702 papers) ISBN.". Stability and Ductility of Steel Structures...
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The Hong Kong Polytechnic University J.G. The Hong Kong Polytechnic University. The Hong Kong Polytechnic University James Lau &. A Cumulative Damage Model for the Analysis of Steel Frames under Seismic Actions Z.- Y. Recent Research and Design Developments in Cold-Formed Open Section and Tubular Members. Design Formulas for Stability Analysis of Reticulated Shells S.Z. Investigation of Rotational Characteristics of...
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The Implications of the Information Society on the Practice of and Training for Steelwork Construction. This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank This Page Intentionally Left Blank...
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It should be used only as a 'first check', to determine if the wind-moment method outlined in this document is a suitable design method for the frame in question.. wind-moment method.. Using the wind-moment method to. Is the t~alframe ~ Is the to!al frame ~ design this frame for ULS is likely sway <.n:.~uu. Application of the Wind Moment Method...
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and 6 denote the sectional reduction and elongation of the material, respectively.. The loading series of the shaking table test are listed in Table 5. The input ground movement in the x- direction and y-direction of the shaking table are El-Centro N-S and El-Centro E-W, respectively, taking the time ratio t. LOADING SERIES OF THE TEST. Amplitude of the acceleration....
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Both the distortional buckling strength Md and section strength Ms reasonably accurately predict the test results at shorter lengths as well as the longer lengths specimens which fail in the lip buckling mode. AS 4100 provides an unconservative estimate of the section strength. However, for the more slender C10010 section, the distortional buckling strength Md and section strength Ms predictions...
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tests are supported by a good understanding of the phenomena and by calculation of the effects of fire in reducing the member's strength, which extend the scope and confidence of the assessment far beyond the conditions actually tested. However, the structural environment of a member in such a fire test is not well related to the situation in the complete...
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Design implications of the Cardington fire research programme", in Fire, Static and Dynamic Tests of Building Structures, eds G. Design Formulas for Stability Analysis of Reticulated Shells. The aim of the paper is to propose some kind of design formulas for stability analysis of single-layer reticulated shells, reflecting the recent advances in theoretical study but simple in form for the...
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p/g are shown in Fig.5. It's seen that the curves sustainedly go down, do not approach a limit even as p/g=2, meanwhile the limit load has dropped to a rather low value of about 30% of the case of symmetrical loading. In which R1 and R 2 are the radiuses of curvature in two directions, respectively, and the coefficient K...
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Nishikawa, et al. Gao et al. Nishikawa et al. A detailed summary of these studies has been reported in the literature (Usami 1996). According to this reference, the local buckling is observed to occur near the column base in the range of about 0.7B (B is the width of the flange) or between the transverse diaphragms, if any.. And the...
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This type of joint is designed for to be placed by a remote operator eliminating the need for an ironworker to make the connection (Viscomi, Michalerya and Lu, 1994). Unfortunately, most of the available high-strength cast steels are not readily weldable. This makes the high- performance steels the ideal choice for the connector pieces. These connectors have been successfully adopted...
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Moreover, frame (d) can be obtained by fastening together two frame (a)'s and a frame (b), which are situated side by side in the appropriate way. For example, the F of Figure (a) can be replaced by F/2 at the left hand end of the top beam and F/2 at the right hand end of the top beam. Most multi-bay...
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Only even numbers of sides were considered. The mode of collapse observed was elastic buckling of the fiat plate elements followed by plastic collapse of the junction between adjacent elements. The buckling curves describe local plate buckling for short columns and Euler column buckling for longer ones. An increase in the local buckling capacity for sections with odd numbered panels...
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The first term considers the base section (A 0, v~ 0 for slenderness ratio 7~) under preload and the second term considers the strengthen section (A, 1<. 1,0) the verification procedure is equal to the elastic cross resistance (Eqn. Therefore this procedure also seems uneconomic with increasing preload, because the capacity of the strengthening plates cannot be taken into account....
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(16) shows that constant load f and loading frequency ~ have great effect on the conditions that there exists Smale horseshoe in the system.. ~P~ <R2, there is Smale horseshoe in the Poincare map of the system.. The above analyzation shows that the critical conditions there exists Smale horseshoe in the dynamic system have closed relations with loading way and...
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Figure 6 Effect of base plate thickness on rotational characteristics. membrance action of the base plate is able to support a further increase in the bolt force until the behaviour comes to a final stage where the bolts eventually fail.. The diameter of the holding down bolts affects directly the initial elastic rotational stiffness as shown in Figure 7. The...
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From the numerical example illustrated above shows that the ultimate strengths and the deformations of semi-rigid steel frames can be load-sequence dependent when both the geometric and material non-linearities are accounted for. Analysis based on proportional load approach can result in an under-estimation of the load-carrying capacity of structures.. A generalised design-based elastoplastic analysis of steel flames by section assemblage...
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The Rosette-joint is formed in pairs between prefabricated holes in one jointed part and collared holes in the other part. Torque is enhanced by multiple teeth in the joint perimeter. At the present time, the application of the Rosette truss system is being examined in the 6 to 15 metre span range.. Figure 3: Cross-sections of the 89 mm Rosette...