TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE
In the present paper, a new technique by adding internal concrete diaphragms, in the transverse direction, for prestressed self-compacting concrete box beams is adopted. Six SCC beam specimens have a dimension of (2200x220x350mm) for length; width and height respectively were poured and tested. Thr...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2017-09-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/525 |
| _version_ | 1798022515196428288 |
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| author | Ali Hameed Aziz Oday Habeeb Hashim |
| author_facet | Ali Hameed Aziz Oday Habeeb Hashim |
| author_sort | Ali Hameed Aziz |
| collection | DOAJ |
| description |
In the present paper, a new technique by adding internal concrete diaphragms, in the transverse direction, for prestressed self-compacting concrete box beams is adopted. Six SCC beam specimens have a dimension of (2200x220x350mm) for length; width and height respectively were poured and tested. Three variables were adopted in the present study; section type (Box or Solid), number of diaphragms (None, Two, and Four), and type of diaphragms (Opened and Closed). Experimental results showed that the ultimate torque moment increases about (58.6%-72.4%) and (120.7%-127.6%) for beam specimens strengthened internally by two and four diaphragms, respectively. Also, increasing internal diaphragms from two to four, led to increasing the ultimate torque moment by about (55.2%-62.1%). Furthermore, the change of section from a box section with four internal diaphragms to a solid section led to an increase in ultimate torque moment by about (48.3%-55.2%). The paper concludes that the increase in torsional capacity was attainable for box beams by using the technique of strengthening by internal diaphragms; Also, the box sections can be made with internal opened diaphragms and possess the same capacity or contribution as the closed ones.
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| first_indexed | 2024-04-11T17:32:24Z |
| format | Article |
| id | doaj.art-7ddc62faf9df4da98f35a060a63c35d9 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T17:32:24Z |
| publishDate | 2017-09-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-7ddc62faf9df4da98f35a060a63c35d92022-12-22T04:11:59ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252017-09-01215TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUEAli Hameed Aziz0Oday Habeeb Hashim 1Civil Engineering Department,Mustansiriyah University, Baghdad, IraqCivil Engineering Department,Mustansiriyah University, Baghdad, Iraq In the present paper, a new technique by adding internal concrete diaphragms, in the transverse direction, for prestressed self-compacting concrete box beams is adopted. Six SCC beam specimens have a dimension of (2200x220x350mm) for length; width and height respectively were poured and tested. Three variables were adopted in the present study; section type (Box or Solid), number of diaphragms (None, Two, and Four), and type of diaphragms (Opened and Closed). Experimental results showed that the ultimate torque moment increases about (58.6%-72.4%) and (120.7%-127.6%) for beam specimens strengthened internally by two and four diaphragms, respectively. Also, increasing internal diaphragms from two to four, led to increasing the ultimate torque moment by about (55.2%-62.1%). Furthermore, the change of section from a box section with four internal diaphragms to a solid section led to an increase in ultimate torque moment by about (48.3%-55.2%). The paper concludes that the increase in torsional capacity was attainable for box beams by using the technique of strengthening by internal diaphragms; Also, the box sections can be made with internal opened diaphragms and possess the same capacity or contribution as the closed ones. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/525torsionbox beamself-compacting concreteprestressdiaphragmsstrengthening |
| spellingShingle | Ali Hameed Aziz Oday Habeeb Hashim TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE Journal of Engineering and Sustainable Development torsion box beam self-compacting concrete prestress diaphragms strengthening |
| title | TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE |
| title_full | TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE |
| title_fullStr | TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE |
| title_full_unstemmed | TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE |
| title_short | TORSIONAL STRENGTHENING OF PRESTRESSED SELF COMPACTING CONCRETE BOX BEAMS USING INTERNAL TRANSVERSE CONCRETE DIAPHRAGMS TECHNIQUE |
| title_sort | torsional strengthening of prestressed self compacting concrete box beams using internal transverse concrete diaphragms technique |
| topic | torsion box beam self-compacting concrete prestress diaphragms strengthening |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/525 |
| work_keys_str_mv | AT alihameedaziz torsionalstrengtheningofprestressedselfcompactingconcreteboxbeamsusinginternaltransverseconcretediaphragmstechnique AT odayhabeebhashim torsionalstrengtheningofprestressedselfcompactingconcreteboxbeamsusinginternaltransverseconcretediaphragmstechnique |