Tag Archive for Tag: Structural Steel

Tag: Structural Steel Properties of materials

Information on the properties of structural steel, concrete, and reinforcement is readily available. Only that which has particular relevance to composite structures will be given here. For the determination of the bending moments and shear forces in a beam or framed structure (known as ‘global analysis’) all three materials can be assumed to behave in a linear – elastic manner, though an

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Tag: Structural Steel Properties of Structural Steels

Figure 4.3 shows a typical stress-strain curve for each classification of structural steels defined in Art. 4.40.4. The diagram illustrates the higher-strength levels achieved with heat treatment and addition of alloys. Tensile Properties of Structural Steels The curves in Fig. 4.3 were derived from tensile tests. The yield points, strengths, and modulus of elasticity obtained from compression tests would be about the same.

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Tag: Structural Steel Structural Steel Systems for Seismic Design

Since seismic loading is an inertial loading, the forces are dependent on the dynamic characteristics of the acceleration record and the structure. Seismic design codes use a response spectrum as shown in Fig. 9.7 to model these dynamic characteristics. These forces are usually reduced in accordance with the ductility of the structure. This reduction is accomplished by the R factor in the static-force method,

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Tag: Structural Steel Erection Methods for Buildings

The determination of how to erect a building depends on many variables that must be studied by the erection engineer long before steel begins to arrive at the erection site. It is normal and prudent to have this erection planning developed on drawings and in written procedures. Such documents outline the equipment to be used, methods of supporting the equipment, conditions for use

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Tag: Structural Steel Relative Cost of Structural Steels

Because of the many strength levels and grades now available, designers usually must investigate several steels to determine the most economical one for each application. As a guide, relative material costs of several structural steels used as tension members, beams, and columns are discussed below. The comparisons are based on cost of steel to fabricators (steel producer’s price) because, in

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