Steel Structures

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 100920 Experts worldwide ranked by ideXlab platform

Ulf Wickstrom - One of the best experts on this subject based on the ideXlab platform.

V K R Kodur - One of the best experts on this subject based on the ideXlab platform.

  • research toward use of unprotected Steel Structures
    Journal of Structural Engineering-asce, 2000
    Co-Authors: Yong Wang, V K R Kodur
    Abstract:

    When exposed to fire, Steel loses stiffness and strength; to limit this loss of strength and stiffness, external fire protection is provided to the Steel structural members to satisfy required fire resistance ratings. However, the current practice of providing fire protection is based on the behavior of single elements under idealistic situations; as such, it is conservative and does not represent the realistic fire behavior of real Structures. Recently, there has been a spurt of worldwide research activities aimed at minimizing such fire protection costs. These studies have mainly focused on understanding the realistic fire behavior of complete Structures and on developing innovative systems with inherent fire resistance. Feasible solutions are now emerging, in which the external fire protection may be completely removed, in certain situations, without compromising the fire safety of Steel Structures. This paper reviews some of the recent developments in this field and describes one particular system in some detail. This system uses the conventional composite slab/Steel beam flooring system in conjunction with concrete-filled Steel tubular columns. Research studies at the United Kingdom’s Building Research Establishment and the National Research Council of Canada suggest that it might be possible, through proper design, to eliminate fire protection for Steel in this system.

Yong Wang - One of the best experts on this subject based on the ideXlab platform.

  • research toward use of unprotected Steel Structures
    Journal of Structural Engineering-asce, 2000
    Co-Authors: Yong Wang, V K R Kodur
    Abstract:

    When exposed to fire, Steel loses stiffness and strength; to limit this loss of strength and stiffness, external fire protection is provided to the Steel structural members to satisfy required fire resistance ratings. However, the current practice of providing fire protection is based on the behavior of single elements under idealistic situations; as such, it is conservative and does not represent the realistic fire behavior of real Structures. Recently, there has been a spurt of worldwide research activities aimed at minimizing such fire protection costs. These studies have mainly focused on understanding the realistic fire behavior of complete Structures and on developing innovative systems with inherent fire resistance. Feasible solutions are now emerging, in which the external fire protection may be completely removed, in certain situations, without compromising the fire safety of Steel Structures. This paper reviews some of the recent developments in this field and describes one particular system in some detail. This system uses the conventional composite slab/Steel beam flooring system in conjunction with concrete-filled Steel tubular columns. Research studies at the United Kingdom’s Building Research Establishment and the National Research Council of Canada suggest that it might be possible, through proper design, to eliminate fire protection for Steel in this system.

David Schnerch - One of the best experts on this subject based on the ideXlab platform.

  • development of a carbon fiber reinforced polymer system for strengthening Steel Structures
    Composites Part A-applied Science and Manufacturing, 2008
    Co-Authors: Sami Rizkalla, Mina Dawood, David Schnerch
    Abstract:

    Abstract This paper summarizes the development and use of high modulus carbon fiber reinforced polymer (HM CFRP) materials for the retrofit of Steel Structures and bridges. The development work included selection of an appropriate adhesive for bonding HM CFRP materials to Steel and the performance of large-scale Steel–concrete composite beams tested to examine the behavior using different strengthening schemes. The experimental program investigated the behavior of the strengthening system under fatigue and overloading conditions. A detailed study of bond behavior, including the possible presence of shear-lag effects and performance of spliced joints is also presented. Based on the findings, flexural design guidelines are proposed. The study indicates that CFRP materials can be effectively used to enhance the serviceability and ultimate strength of Steel flexural members.

Tsutomu Usami - One of the best experts on this subject based on the ideXlab platform.

  • ductility evaluation procedure for thin walled Steel Structures
    Journal of Structural Engineering-asce, 2000
    Co-Authors: Yi Zheng, Tsutomu Usami
    Abstract:

    A rational ductility evaluation procedure for thin-walled Steel Structures is required to account for local buckling and to be convenient for practical use. This paper describes a simple but powerful ductility evaluation method for such Structures. The method involves an elastoplastic push-over analysis and failure criterion based on the empirical ductility equations proposed for stub-columns. Local buckling is thoroughly considered in the failure criterion and can be neglected in the push-over analysis, which facilitates practical application. The implementation of the proposed procedure is demonstrated by application to the ductility evaluation of some cantilever columns and a one-story frame. The comparison between the present results and previous ductility estimations reported in the literature leads to the validation of the proposed method.

  • cyclic behavior of thin walled Steel Structures numerical analysis
    Thin-walled Structures, 1998
    Co-Authors: Tsutomu Usami
    Abstract:

    Abstract In the present paper, results of a numerical study on cyclic behavior of thin-walled Steel Structures are presented. Analyses are conducted on Steel plates with or without stiffeners, Steel stub columns of pipe-sections, and Steel cantilever columns of box or pipe sections. To trace with good accuracy the inelastic cyclic behavior of Steel, a modified two-surface model developed at Nagoya University is employed for material nonlinearity. Discussions of the results are concerned with the cyclic behavior, strength and ductility of the Structures. Especially, a series of proposed formulas are given to obtain the strength and ductility of various types of Structures, and it is expected that the formulas are useful to researchers and practical engineers.