In order to make steel structures, for example, beams and columns, the standard sections are combined in a suitable way. Such a combined section is called a built-up section.
Figure 24.2 shows built-up sections composed of I-sections only. Likewise Fig. 24.3 shows built-up sections formed by combining I-section and plates.
Figure 24.2 Built-up sections formed by combination of I-sections
Figure 24.3 Built-up sections formed by combination of I-sections and plates
Figure 24.4 shows the combination of I and channel sections, whereas Fig. 24.5 shows combination of channel and plates.
Figure 24.4 Built-up section formed by combination of I-section and channel
Figure 24.5 Built-up section formed by combination of channels and plates
Figure 24.6 shows combination of angle sections and plates.
Built-up sections are used for columns, beams, girders and other structural needs.
Figure 24.6 Built-up section formed by combination of angle sections and plates
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