A Comparison of Shear Strength of Box-section Beam Made of Sliced-laminated Dendrocalamus Asper Under Torsion and Transversal Load

Karyadi,; Dewi, Sri Murni; Soehardjono, Agoes

doi:10.1016/j.proeng.2014.12.163

Cited by 6 publications

(2 citation statements)

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“…Kondisi ini menjadikan upaya pemanfaatan bambu betung untuk tujuan kontruksi terus dikembangkan. Sebagai contoh pembuatan lamina dari bambu betung (D. asper) dengan ketebalan 5 mm, lebar 20 mm dan panjang 3 m yang dilakukan oleh (Karyadi, Dewi, & Soehardjono, 2014). Hal ini disebabkan kekuatan tarik bambu lebih besar dua kali dibandingkan kayu dan kekuatan tekan lebih baik 10% dibanding kayu (Mujiman, Priyosulistyo, Sulistyo, & Prayitno, 2014).…”

Section: Pendahuluanunclassified

Model Taper Bambu Betung

Abdulah¹,

Sutiyono²

2019

Jur.pen.hut.tanaman

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Informations on the individual growth of bamboo stems such as dimensions of node length, node diameter, and wall-node thick are needed to increase bamboo processed yield. This study aimed to provide a model of growth estimation of individual growth of bamboo stems. Destruction method was used, and resulting data was sorted sorted by time. The correlation between age and dimensions was analyzed with cross-section technique. The results showed that there were a correlation among age with node diameter and node length, but no correlation with wall-node thick. Parameters of node length, total length of bamboo, and base node diameter significantly influenced the estimated diameter of each node. Node's sequence number, node lengths, and base node diameter can be used to compile estimation model of the bamboo wall thickness. The uniqueness of bamboo model is the importance of node sequence.. This model can be used for sustainable development use of Dendrocalamus asper.

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Section: Pendahuluanunclassified

Model Taper Bambu Betung

Abdulah¹,

Sutiyono²

2019

Jur.pen.hut.tanaman

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“…Fig. 2: Setting up of column testing basis for predicting the critical stresses of the intermediates and long columns.Predicted critical load:The average of the tested ultimate stress of short columns in this study is 59.08 MPa and the average elastic modulus of the columns gathered from a flexural test conducted byKaryadi et al (2014) is 13,522 MPa, was used as a basis for predicting the critical load of the long and intermediate columns. Moreover, the Yilnen parameter value (c) for these laminated columns was determined to be 0.90.…”

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confidence: 99%

The Strength of Axially Loaded Square Hollow-Section Column Made of Laminated Asian Bamboo (<em>Dendrocalamus asper</em> Becker)

Karyadi¹,

Dewi²,

Soehardjono³

2018

RJASET

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An experimental study on square hollow-section columns with central axial load has been conducted to find the strength of the columns. There were thirty test columns, each of them was formed by laminated Asian bamboo glued by urea formaldehyde of 2.68 N/m 2 and cool compressed for 4 h at 2 MPa. The nominal size of the sectioned column was 80, 120 and 160 mm with the wall's thickness were 15, 20 and 25 mm, respectively. The thirty columns were categorized into 3 groups, namely 9 specimens of short columns, 12 specimens of intermediate columns and 9 specimens of long columns. The results of the study show that all of the short columns experienced failure due to material crushing when the pressure reached 59.08 MPa. The intermediate columns experienced three failures, namely material crushing or inelastic buckling or splitting wall of the columns, while all specimens of long columns experience failure due to elastic buckling. The ratio of the critical load of the test results and the predicted critical load by using Ylinen formula reach 0.76 to 1.45. Such results show that the Ylinen Formula can be used to design the square hollow-section column of laminated Asian bamboo.

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