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For maximum hogging bending moment at suppot in a continuous RC beam, live load should be placed on
- a)Spans adjacent to the support only
- b)Spans next to the adjacent spans of the support plus alternate spans
- c)Spans adjacent to support plus alternate spans
- d)All the span except the spans adjacent to the support.
Correct answer is option 'C'. Can you explain this answer?
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For maximum hogging bendingmoment at suppot in a continuousRC beam, li...
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For maximum hogging bendingmoment at suppot in a continuousRC beam, li...
Explanation:
In a continuous RC beam, the bending moment is maximum at the supports. To maximize the hogging bending moment at the support, the live load should be placed in a specific pattern. The correct option is 'C', which means that the live load should be placed on spans adjacent to the support plus alternate spans.
This can be explained in the following points:
1. Definition of continuous RC beam: A continuous RC beam is a beam that spans over multiple supports, and the supports are connected by a continuous slab or beam.
2. Bending moment in a continuous RC beam: The bending moment in a continuous RC beam is maximum at the supports due to the continuous nature of the beam.
3. Hogging bending moment: A hogging bending moment is a bending moment that causes the beam to bend upwards at the supports.
4. Live load: A live load is a load that varies in magnitude and position, such as the weight of people or vehicles.
5. Placing live load: To maximize the hogging bending moment at the support, the live load should be placed on spans adjacent to the support plus alternate spans.
6. Explanation of option 'C': Option 'C' means that the live load should be placed on spans adjacent to the support plus alternate spans. This pattern of live load placement creates a maximum hogging bending moment at the supports.
7. Other options: The other options are not correct because they do not create the maximum hogging bending moment at the supports. Option 'A' only places the live load on spans adjacent to the support, which is not enough to create the maximum hogging bending moment. Option 'B' places the live load on spans next to the adjacent spans of the support plus alternate spans, which is not as effective as option 'C'. Option 'D' places the live load on all the spans except the spans adjacent to the support, which is not effective in creating the maximum hogging bending moment.
In a continuous RC beam, the bending moment is maximum at the supports. To maximize the hogging bending moment at the support, the live load should be placed in a specific pattern. The correct option is 'C', which means that the live load should be placed on spans adjacent to the support plus alternate spans.
This can be explained in the following points:
1. Definition of continuous RC beam: A continuous RC beam is a beam that spans over multiple supports, and the supports are connected by a continuous slab or beam.
2. Bending moment in a continuous RC beam: The bending moment in a continuous RC beam is maximum at the supports due to the continuous nature of the beam.
3. Hogging bending moment: A hogging bending moment is a bending moment that causes the beam to bend upwards at the supports.
4. Live load: A live load is a load that varies in magnitude and position, such as the weight of people or vehicles.
5. Placing live load: To maximize the hogging bending moment at the support, the live load should be placed on spans adjacent to the support plus alternate spans.
6. Explanation of option 'C': Option 'C' means that the live load should be placed on spans adjacent to the support plus alternate spans. This pattern of live load placement creates a maximum hogging bending moment at the supports.
7. Other options: The other options are not correct because they do not create the maximum hogging bending moment at the supports. Option 'A' only places the live load on spans adjacent to the support, which is not enough to create the maximum hogging bending moment. Option 'B' places the live load on spans next to the adjacent spans of the support plus alternate spans, which is not as effective as option 'C'. Option 'D' places the live load on all the spans except the spans adjacent to the support, which is not effective in creating the maximum hogging bending moment.
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For maximum hogging bendingmoment at suppot in a continuousRC beam, live load should beplaced ona)Spans adjacent to the supportonlyb)Spans next to the adjacent spansof the support plus alternate spansc)Spans adjacent to support plusalternate spansd)All the span except the spansadjacent to the support.Correct answer is option 'C'. Can you explain this answer?
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