| Autor: |
Richard W. Furlong |
| Rok vydání: |
1991 |
| Předmět: |
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| Zdroj: |
Progress in Structural Engineering ISBN: 9789401056045 |
| DOI: |
10.1007/978-94-011-3616-7_5 |
| Popis: |
Members of reinforced concrete structures “shall be designed for the maximum effects of factored loads as determined by the theory of elastic analysis” to satisfy Section 8.3.1 of the ACI Building Code1. However, at any failure limit state, it is known that the actual distribution of forces in a structure will differ significantly from that indicated by elastic analysis. The inelastic redistribution of forces under excess loading tends to permit the frame to sustain limit loads greater than those suggested from elastic analysis. One detrimental influence from inelastic response due to excess loading is the reduction in member stiffness and potential instability of concrete frames as the mass of a structure is displaced laterally toward an unstable overturning mode of failure. Section 10.10 of the Building Code requires designers to consider both local and overall instability of concrete structures rationalized in terms of beam-column effects on compression members. If first order elastic analysis is to serve as the basis of design, Section 10.10.2 permits the use of an approximate evaluation of compression member (and of frame) slenderness effects by means of moment magnifier factors in Section 10.11. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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