{"id":8084,"date":"2022-10-07T14:57:42","date_gmt":"2022-10-07T14:57:42","guid":{"rendered":"https:\/\/support.buildsoft.eu\/?post_type=ht_kb&p=8084"},"modified":"2022-10-11T12:09:40","modified_gmt":"2022-10-11T12:09:40","slug":"parameters-for-redistribution-of-moments-concrete","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/es\/knowledge-base\/parameters-for-redistribution-of-moments-concrete\/","title":{"rendered":"Parameters for redistribution of moments (ConCrete)"},"content":{"rendered":"
EN<\/span>NL<\/span>FR<\/span><\/div>
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Click on the icon \"\"\u00a0to consult or change the calculation options of the redistribution of moments<\/strong>. Just as for the geometrical parameters of the supports, these options apply to all the supports (or only all the intermediate supports).<\/p>\n

\"\"<\/p>\n

The first option in the dialog box causes no change in the diagrams, it only produces a reduction of the reinforcement moments. The reason therefore is that with larger supports, the top of the diagram of moments can be cut in order to determine the support reinforcement (Figure 43). Concrete allows you to reduce the time by either:<\/p>\n

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  • By giving up a percentage<\/li>\n
  • By giving up the width of the The reduction of the moment \"\Delta M\" is calculated as follows (EN 1992-1-1 \u00a75.3 (4)):\n

      <\/span>   <\/span>\"\[\Delta M = \frac{F_{sub} \cdot b_{sub}}{8}\]\"<\/p>\n

    In which\u00a0 \"F_{sub}\" is the reaction force in the support and \"b_{sub}\" the width of the support.<\/li>\n<\/ul>\n

    On the contrary, the second option does change the diagrams by decreasing the moments on the intermediate supports with a percentage entered by the user and by increasing at the same time the moments in the spans so that the obtained diagram of moments is, from a static point of view, a correct solution for the entered loads (EN 1992-1-1 \u00a75.5). This implicates that the shear force line is also changed.<\/p>\n\n\n\n\n
    \"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
    Moment reduction without redistribution<\/td>\nMoment reduction with redistribution<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    If we however want to apply a different moment reduction for each support, we keep the Control key pressed when clicking with the mouse on the support sketch in the Structure and loads window. We obtain the same dialog box as above, now only valid for this one selected support (Figure below) . The second option has been left out for end supports: there the inner forces are merely determined by the static balance. Any modification of the diagrams is inacceptable at that location.<\/p>\n

    \"\"<\/p>\n<\/div>\n

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    Klik op de knop \"\"\u00a0om de berekeningsopties voor de momentenreductie <\/strong>te wijzigen. Net zoals voor de geometrische parameters van de steunpunten, zijn deze opties toepasselijk voor alle steunpunten (eventueel alleen alle tussensteunpunten).<\/p>\n

    \"\"<\/p>\n

    De eerste optie uit het dialoogvenster veroorzaakt geen wijziging van de grafieken, maar brengt enkel een reductie van de wapeningsmomenten teweeg. De reden hiervoor is dat bij bredere steunpunten de top van de momentenlijn mag afgeknot worden ter bepaling van de steunpuntswapening. ConCrete laat je toe het moment te verminderen door ofwel:<\/p>\n