@article{nokey,

title = {The development of A Simulation Tool for Numerical Modelling of High Flexure and High Shear Reinforced Concrete Elements},

author = {Nuroji and Mhd. Rony Asshidiqie and Sukamta and Han Ay Lie

},

url = {https://ejournal.undip.ac.id/index.php/teknik/article/view/32683},

doi = {https://doi.org/10.14710/teknik.v42i2.32683},

issn = {2460-9919},

year  = {2021},

date = {2021-08-31},

urldate = {2021-08-31},

journal = {Jurnal Ilmiah Bidang Ilmu Kerekayasaan},

volume = {42},

number = {2},

pages = {106 - 116},

abstract = {The weakness of full-scale testing of reinforced concrete elements in a laboratory is the long period, both to prepare and test specimens and the high-cost, resulting in a limited number of specimens. The heavy specimen creates another difficulty during set-up. Data accuracy depends on apparatus precision, laboratory conditions, and the technicians' expertise in experimenting. A finite element model was constructed to simulate a reinforced concrete element subject to high flexure and shear stresses induced by vertical and horizontal forces to overcome these constraints. The model can further be utilized to evaluate the effects of independent variables on the behavior of the member. The model was validated both numerically and experimentally to ensure accuracy and precision. The numerical validation was conducted through a sensitivity analyses process on the finesses of meshing and loading incrementation. At the same time, the load-deformation data and the crack propagation of identical laboratory-tested elements were utilized for validation of the experimental data. It was proven that the developed model predicts the behavior of the beam to a high degree of correctness. The model can further be used as a tool for analyses in the field.

},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{95,

title = {Numerical parametric study on the flexural capacity of reinforced concrete beams strengthened with non-metallic materials},

author = {Yanuar Haryanto And Hsuan-teh Hu And Ay L. Han And Fu-pei Hsiao And Nanang G. Wariyatno And Banu A. Hidayat},

url = {https://hanaylie.id/wp-content/uploads/2021/08/16_4_37.pdf

http://jestec.taylors.edu.my/V16Issue4.htm},

year  = {2021},

date = {2021-08-01},

journal = {Journal of Engineering Science and Technology (JESTEC)},

volume = {16},

number = {4},

pages = {3295 - 3311},

abstract = {A modified compression field theory and models developed with Response-2000 using the theory were applied to the prediction of the flexural capacity of reinforced concrete beams strengthened with the assistance of non-metallic material such as bamboo. Data were retrieved from earlier studies conducted in 2017 and two RC beams were used as specimens with one designed as the control beam (BC) while the other was strengthened through a near-surface mounted technique using four bamboo strips (BB). The study showed the accuracy of the models developed in predicting the responses of load-deflection up to the peak load, but underestimated figures were generally obtained from the predictions of beam ductility with an average of 34.41% difference. The models also provided conservative predictions of the flexural capacity for the beams with the ratios of 1.16 and 1.04 for BC and BB respectively. Moreover, the model developed was observed to be efficient in making quick and accurate predictions on the flexural strength based on a normalized mean square error (NMSE) of 0.006 and also has the ability to determine the conditions with the potential to cause the collapse of the reinforced concrete beams. Furthermore, the validated model was later used

to study the impact of bamboo diameter, concrete compressive strength, and steel reinforcement ratio on strengthened beams behaviour.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{86,

title = {Negative moment region flexural strengthening system of RC T-beams with half-embedded NSM FRP rods: a parametric analytical approach},

author = {Yanuar Haryanto and Hsuan-Teh Hu and Ay Lie Han and Fu-Pei Hsiao,Charng-Jen Teng and Banu Ardi Hidayat and Nanang Gunawan Wariyatno},

url = {https://www.tandfonline.com/doi/full/10.1080/02533839.2021.1936646},

doi = {https://doi.org/10.1080/02533839.2021.1936646},

issn = {2158-7299},

year  = {2021},

date = {2021-06-21},

journal = {Journal of the Chinese Institute of Engineers },

abstract = {Fiber Reinforced Polymer (FRP) rods are considered to be the most effective in retrofitting to increase the strength of reinforced concrete (RC) structures through Near-Surface Mounted (NSM) technique. There are, however, frequent cases encountered by engineers where the embedment depth mandated by ACI 440.2 R-08 code is not achievable in the field implementation. It has also been discovered that it is more challenging to strengthen the negative moment region of concrete members in comparison with the positive region. This research was conducted to determine the behavior of RC T-beams strengthened in the negative moment region using half-embedded NSM FRP rods. The findings were associated with the Modified Compression Field Theory (MCFT) which was applied in the analytical models. The model proposed was validated through a comparison with previous experimental study that showed half-embedded NSM FRP was effective as another method in comparison with the conventional soffit strengthening systems in retrofitting RC T-beams in the negative moment region, and good agreement was obtained. After that, a parametric analysis was initiated to determine the influence of FRP rod diameters, the compressive strength of concretes, the ratio of steel reinforcement as well as the materials used for the FRP on the flexural behavior of strengthened beams.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{85,

title = {Design Philosophy for Buildings’ Comfort-Level Performance},

author = {Nanang Gunawan Wariyatno and Han Ay Lie and Fu-Pei Hsiao and Buntara Sthenly Gan},

url = {https://ojs.imeti.org/index.php/AITI/article/view/7309},

doi = {https://doi.org/10.46604/aiti.2021.7309},

year  = {2021},

date = {2021-05-27},

journal = {Advances in Technology Innovation},

volume = {6},

number = {3},

pages = {157 - 168},

abstract = {The data reported by Japan Meteorological Agency (JMA) show that the fatal casualties and severe injuries are due to heavy shaking during massive earthquakes. Current earthquake-resistant building standards do not include comfort-level performance. Hence, a new performance design philosophy is proposed in this research to evaluate the quantitative effect of earthquake-induced shaking in a building. The earthquake-induced response accelerations in a building are analysed, and the response accelerations related with the characteristic property of the building are used to evaluate the number of Seismic Intensity Level (SIL). To show the indispensability of the newly proposed comfort-level design philosophy, numerical simulations are conducted to evaluate the comfort level on different floors in a building. The results show that the evaluation of residents’ comfort levels should be considered in the current earthquake-resistant building design codes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{84b,

title = {Seismic behavior and failure modes of non-ductile three-story reinforced concrete structure: A numerical investigation},

author = {	

Banu A. Hidayat and Hsuan-Teh Hu and Fu-Pei Hsiao and Ay Lie Han and Lisha Sosa and Li-Yin Chan and Yanuar Haryanto},

url = {http://www.techno-press.org/content/?page=article&journal=cac&volume=27&num=5&ordernum=6},

doi = {http://dx.doi.org/10.12989/cac.2021.27.5.457},

year  = {2021},

date = {2021-05-05},

journal = {Computers and Concrete},

volume = {27},

number = {5},

pages = {457-472},

abstract = {Reinforced concrete (RC) buildings in Taiwan have suffered failure from strong earthquakes, which was magnified by the non-ductile detailing frames. Inadequate reinforcement as a consequence of the design philosophy prior to the introduction of current standards resulted in severe damage in the column and beam-column joint (BCJ). This study establishes a finite element analysis (FEA) of the non-ductile detailing RC column, BCJ, and three-story building that was previously tested through a tri-axial shaking table test. The results were then validated to laboratory specimens having the exact same dimensions and properties. FEA simulation integrates the concrete damage plasticity model and the elastic-perfectly plastic model for steel. The load-displacement responses of the column and BCJ specimens obtained from FEA were in a reasonable agreement with the experimental curves. The resulting initial stiffness and maximum base shear were found to be a close approximation to the experimental results. Also, the findings of a dynamic analysis of the three-story building showed that the time-history data of acceleration and displacement correlated well with the shaking table test results. This indicates the FEA implementation can be effectively used to predict the RC frame performance and failure mode under seismic loads.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}