Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia
Bamboo is an inexpensive, environmentally friendly, and renewable building material that thrives in Indonesia. Bamboo has a high tensile strength but also has weaknesses, namely, it is easily attacked by insects and has high water absorption. Utilization of bamboo as a precast concrete bridge reinfo...
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| Format: | Article |
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7158 |
| _version_ | 1797551008660848640 |
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| author | Muhtar |
| author_facet | Muhtar |
| author_sort | Muhtar |
| collection | DOAJ |
| description | Bamboo is an inexpensive, environmentally friendly, and renewable building material that thrives in Indonesia. Bamboo has a high tensile strength but also has weaknesses, namely, it is easily attacked by insects and has high water absorption. Utilization of bamboo as a precast concrete bridge reinforcement must be treated first through soaking, drying, and giving a waterproof coating and sand. This research aimed to obtain a precast bamboo reinforced concrete bridge technology with good integrity, with measuring parameters of deformation and deflection according to AASHTO standards. The dimensions of the bridge were a span of 320 cm, a width of 224 cm, and a height of 115 cm. Two bridge frames were connected by four bridge beams. The bridge plate was made of a 10-cm-thick concrete plate. The bridge support of the reinforced concrete is assumed to be the hinge support and the rubber bearing is assumed to be the roller support. The bamboo reinforced concrete frame bridge test was carried out directly with a load of a minibus-type vehicle. The test results show that the precast bamboo reinforced concrete frame bridges have sufficiently good integrity; that is, they can distribute loads with deflection and deformation that do not exceed their permits. The maximum displacement occurs in the bridge frame of 0.25 mm, meeting the requirements based on the AASTHO and RSNI T-12-2004 standards, which is not more than Δ<i><sub>max</sub></i> = L/800 = 3.75 mm. The maximum deformation occurs in the bridge beam of 0.20 mm, and the bridge frame of 0.13 mm meets the requirements based on the AASTHO and RSNI T-12-2004 standards, which is not more than <i>δ<sub>max</sub></i> = L/800 = 3.75 mm. |
| first_indexed | 2024-03-10T15:37:35Z |
| format | Article |
| id | doaj.art-816b874049074ad09dd7831e34597a4d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:37:35Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-816b874049074ad09dd7831e34597a4d2023-11-20T17:05:37ZengMDPI AGApplied Sciences2076-34172020-10-011020715810.3390/app10207158Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in IndonesiaMuhtar0Faculty of Engineering, University of Muhammadiyah Jember, Jember 68121, IndonesiaBamboo is an inexpensive, environmentally friendly, and renewable building material that thrives in Indonesia. Bamboo has a high tensile strength but also has weaknesses, namely, it is easily attacked by insects and has high water absorption. Utilization of bamboo as a precast concrete bridge reinforcement must be treated first through soaking, drying, and giving a waterproof coating and sand. This research aimed to obtain a precast bamboo reinforced concrete bridge technology with good integrity, with measuring parameters of deformation and deflection according to AASHTO standards. The dimensions of the bridge were a span of 320 cm, a width of 224 cm, and a height of 115 cm. Two bridge frames were connected by four bridge beams. The bridge plate was made of a 10-cm-thick concrete plate. The bridge support of the reinforced concrete is assumed to be the hinge support and the rubber bearing is assumed to be the roller support. The bamboo reinforced concrete frame bridge test was carried out directly with a load of a minibus-type vehicle. The test results show that the precast bamboo reinforced concrete frame bridges have sufficiently good integrity; that is, they can distribute loads with deflection and deformation that do not exceed their permits. The maximum displacement occurs in the bridge frame of 0.25 mm, meeting the requirements based on the AASTHO and RSNI T-12-2004 standards, which is not more than Δ<i><sub>max</sub></i> = L/800 = 3.75 mm. The maximum deformation occurs in the bridge beam of 0.20 mm, and the bridge frame of 0.13 mm meets the requirements based on the AASTHO and RSNI T-12-2004 standards, which is not more than <i>δ<sub>max</sub></i> = L/800 = 3.75 mm.https://www.mdpi.com/2076-3417/10/20/7158precast bridgesbamboo reinforced concrete (BRC)bridge technologybridge frame |
| spellingShingle | Muhtar Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia Applied Sciences precast bridges bamboo reinforced concrete (BRC) bridge technology bridge frame |
| title | Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia |
| title_full | Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia |
| title_fullStr | Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia |
| title_full_unstemmed | Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia |
| title_short | Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia |
| title_sort | precast bridges of bamboo reinforced concrete in disadvantaged village areas in indonesia |
| topic | precast bridges bamboo reinforced concrete (BRC) bridge technology bridge frame |
| url | https://www.mdpi.com/2076-3417/10/20/7158 |
| work_keys_str_mv | AT muhtar precastbridgesofbambooreinforcedconcreteindisadvantagedvillageareasinindonesia |