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All Journal Jurnal Multidisiplin Madani (MUDIMA) Formosa Journal of Sustainable Research (FJSR)
Herman Tumengkol
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Social Sciences

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The Effect of Concrete Quality on Structural Period Fandel Maluw; Hendrie Joudie Palar; Don Kabo; Herman Tumengkol; Teddy Takaendengan
Jurnal Multidisiplin Madani Vol. 4 No. 11 (2024): November 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/mudima.v4i11.12972

Abstract

An important consideration in structural calculations is a structure's vibration period, which establishes the size of the seismic stresses applied during the design phase. North Sulawesi falls within the category of high-risk earthquake region. The formula for calculating the vibration period, as outlined in SNI 03-1726-2012 is based on Goel and Chopra's (1997) approach and ASCE seismic standards. Nevertheless, SNI 03-1726-2012's formula has a notable limitation: it applies the same approach to all earthquake zones, regardless of whether the area is high-risk or low-risk. This study aims to develop a structural period formula tailored following the SNI 03-1726-2012 earthquake design guidelines and to investigate how the quality of the concrete affects the structural lifespan. Three-dimensional structural modeling of typical structures with floors is used in the study. heights of 4 meters and widths of 4 meters, specifically focusing on mid-rise reinforced concrete buildings with 12 floors. Structural modeling is conducted using the ETABS software, and regression analysis is performed on the resulting structural period values to derive the most accurate formula. The regression analysis yielded two optimal formulas, each with a correlation value of 98%: T=0.105H0.785T = 0.105 H^{0.785}T=0.105H0.785 and T=0.311n0.785T = 0.311 n^{0.785}T=0.311n0.785. The findings indicate that lower concrete quality leads to an increased structural period, albeit with a smaller overall impact. Thus, concrete quality significantly influences the structural period
Comparative Analysis of Reinforcement Efficiency in Beams and Columns for the North Minahasa-North Sulawesi Civil Servants Flats Project Hendrie Palar; Kabo, Don; Herman Tumengkol
Formosa Journal of Sustainable Research Vol. 3 No. 4 (2024): April, 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjsr.v3i4.8928

Abstract

This study aims to (1) compare the reinforcement from the calculation of beams and columns with the reinforcement installed in the North Minahasa Civil servantsFlats Project, (2) to analyze whether the reinforcement installed in the North Minahasa Civil servantsFlats Project is economical or not. This research was conducted in the Department of Engineering at the Manado State Polytechnic. The method used in this research is quantitative with the method of observation. The material and structural data used are the same as those in the project. The results of this study were carried out with the help of the Etabsv20 program. Based on the results of the reinforcement calculations that have been carried out, the comparison of the area of reinforcement (AS) for columns and beams between the results of ETABS and the results of the area of reinforcement installed in the project is obtained which is then converted in percentage form. In the beam, the largest percentage ratio is in the upper support area by 60% and in the plane located in the lower plane by 60%. While in the comparison column the percentage of reinforcement column (AS) from the project with the largest ETABS result is 40%
Co-Authors Don Kabo Don Kabo Hendrie Joudie Palar Hendrie Palar Maluw, Fandel Takaendengan, Teddy