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All Journal Jurnal Dimensi Pratama Teknik Sipil Civil Engineering Dimension

Benjamin Lumantarna

Dosen Program Studi Teknik Sipil Universitas Kristen Petra

Author-ID : 309541

Civil Engineering, Building, Construction & Architecture

Published : 13 Documents Claim Missing Document

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Seismic Performance of a Three-Story Reinforced Concrete Building with Masonry Infill Walls and Friction Base Support Pudjisuryadi, Pamuda; Prayogo, V.S.; Oetomo, S.I.; Lumantarna, Benjamin
Civil Engineering Dimension Vol. 23 No. 1 (2021): MARCH 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

The stiffness of masonry infill walls is commonly neglected in design practice of Reinforced Concrete (RC) structures. In fact, the stiffness of masonry infill wall may significantly influence seismic performance and dynamic behavior of RC buildings. In this research, influence of masonry infill walls to the structural performance of a three-story RC frame is investigated. In addition, possible application of friction-based support is also studied. Full 3D non-linear time history analysis is conducted to observe behavior of the structure under two-directional ground motion. In the analysis, any failed elements are removed subsequently from the model to avoid numerical analysis problem. The result shows that the placement of masonry infill walls can significantly influence the structural behavior of RC structure. Inappropriate placement of masonry wall may lead the building undergo soft-story mechanism. It is also found that the use of friction-based support can effectively improve the seismic performance of the building.

Improving Seismic Performance of Structure with Semi-rigid floor using VSL-Gensui Damper Pudjisuryadi, Pamuda; Halim, Andre; Kandiawan, Alexander Keith; Lumantarna, Benjamin
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Deficient structures can be strengthened using various methods, and installing damper devices is one of such methods. In this study, effectiveness of Vorspann System Losinger (VSL) Gensui Damper to improve structural performance of deficient building with semi-rigid floors is investigated. The considered building is subjected to spectrum consistent ground accelerations generated from El Centro 18 May 1940 earthquake N-S and E-W components in accordance to Indonesian Seismic Code (SNI 1726:2012) for Mataram City. Modified Simplified Sequential Search Algorithm (MSSSA) and Optimum Damper Allocation Method (ODAM) methods are used to efficiently placed the dampers on the building until allowable drift limits specified by the code are met. Results show that installation of VSL Gensui Dampers can effectively reduce structural drifts. Further, it should be noted that the placement of dampers must be well distributed among frames in the same story, since their drifts may differ significantly in building with semi-rigid floors.

Performance of Six- and Ten-story Reinforced Concrete Buildings Designed by using Modified Partial Capacity Design (M-PCD) Method with 70% Shear Force Ratio Pudjisuryadi, Pamuda; Wijaya, F.; Tanuwijaya, R.; Prasetyo, B.C.; Lumantarna, Benjamin
Civil Engineering Dimension Vol. 23 No. 2 (2021): SEPTEMBER 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

One design alternative of earthquake resistant building is Partial Capacity Design (PCD) method. Unlike the commonly used capacity design method, PCD allows a safe failure mechanism which is called partial sidesway mechanism. In this mechanism, all beams and some columns are allowed to experience plastic damages while some selected columns are designed to remain elastic (called elastic columns). A new approach to predict the required strengths needed to design each structural member, called modified-PCD (M-PCD) is proposed. In this research six- and ten-story reinforced concrete buildings were designed using M-PCD, and their seismic performances are investigated. The base shear force resisted by the elastic columns was set to approximately 70% of the total base shear. Both nonlinear static procedure (NSP) and nonlinear dynamic procedure (NDP) are used to analyze the structures. The results show that the expected partial side sway mechanism is observed, and the drifts of the buildings are acceptable.

Application of Modified-Partial Capacity Design Method on 6- and 15-story Square Buildings with Variation in number of Elastic Columns Pudjisuryadi, Pamuda; Lumantarna, Benjamin; Wijaya, Fransisca; Aphrodita, C.; Jesica, A.; Karyanto, Y.; Theodora, M.K.
Civil Engineering Dimension Vol. 24 No. 1 (2022): MARCH 2022
Publisher : Institute of Research and Community Outreach - Petra Christian University

Modified-Partial Capacity Design (M-PCD) is proposed as one alternative of structural design methods. In M-PCD, the partial side sway mechanism where beams and some columns may develop plastic hinges. This method uses two structural models during the design process. The models are used to simulate undamaged and damaged structures when subjected to design earthquake (R=8.0) and larger target earthquake (R=1.6) respectively. In this study, 6- and 15-story square buildings with 30% and 50% elastic column are designed using M-PCD. Performances of the buildings are investigated by using non-linear time history analysis. Results show that the buildings’ performances are still unsatisfactory, especially for the 15-story buildings. However, it should be noted that the levels of earthquakes used for the analysis were larger than that used for the design. A more accurate prediction of the required strength should be developed further to improve M-PCD.

Co-Authors , Herryanto Andre Halim, Andre Andrianto Gunawan Angkasaputra, Kenny Aphrodita, C. Arygianni Valentino, Arygianni Erron Gunardi Fransisca Wijaya Go Aei Li Ho Steven Ima Muljati Ima Muljati G. Jesica, A. Jimmy Setiawan Kandiawan, Alexander Keith Karel Abraham Tantra, Karel Abraham Karyanto, Y. Liske Widjojo Oetomo, S.I. Pamuda Pudjisuryadi Paravita Sri Wulandari Prasetyo, B.C. Prayogo, V.S. Reynaldo Pratama Intan, Reynaldo Pratama Sebastiano, Favian Sherly Sulistio Tanuwijaya, R. Theodora, M.K. Victor Kopaloma Wijaya, F. Yosepha Puteri T. Yulietta D. W. Zendy Sutanto, Zendy

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