The effect of eccentricity at beam support to beam stiffness
A beam reacts to loading through bending action. Therefore, beam bending stiffuess can be represented by deflection. Theoretically, beam stiffuess is governed by span length, elastic modulus, moment of inertia and support type. In the analytical analysis, beams are assumed simply supported or...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2005
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/8216/1/24p%20AHMAD%20ZURISMAN%20MOHD%20ALI.pdf |
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| Summary: | A beam reacts to loading through bending action. Therefore, beam bending stiffuess
can be represented by deflection. Theoretically, beam stiffuess is governed by span
length, elastic modulus, moment of inertia and support type. In the analytical
analysis, beams are assumed simply supported or fixed supported However, based on
real cases and lab experiments there are other factors that are not included theoretical
equation but effect to the beam stiffuess Factors such as eccentricity between beam
neutral axis and beam support (vertical eccentricity), pour stop stiffuess in composite
beam/slab effect and column size effect were analyzed in this study. The effects were
studied using plane stress element finite. Pour stop stiffuess were modelled using
spring element. From the analysis, vertical eccentricity does not give significant
effect to beam stiffuess and it can be neglected. The pour stop provides stiffuess of
25000kN/m at the outer support. Beam deflection is independent with column
deflection when column width is three times bigger than beam depth. |
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