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Journal : Journal Of World Science

Building Structure With Seismic Design Categories Use SRPMK Maulana, Ade; Yusuf, Amirul; Santie Adhy, Muchamad Rendy; Firmanto, Arief
Journal of World Science Vol. 4 No. 5 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i5.1415

Abstract

In the planning of multi-storey buildings, safety and efficiency are crucial, particularly in designing structures capable of withstanding loads, including earthquake loads, which significantly impact building behavior. One method for withstanding earthquake loads is the design of moment-resisting frame systems, categorized into three types: ordinary moment-resisting frame system (SRPMB), medium moment-resisting frame system (SRPMM), and special moment-resisting frame system (SRPMK). The focus of this study is on structures that must endure extreme earthquake conditions, specifically the SRPMK and SRPMM systems, which are designed to withstand inelastic responses due to seismic activity, ensuring that the structure is ductile (flexible) and safe for use. The design process refers to SNI 2847-2019 and SNI 1726-2019 regulations and employs the ETABS 2020 program for modeling, analysis, and design. The analysis of the mall building revealed that the dimensions of the planned structural elements, such as beams and columns, meet the cross-sectional criteria for SRPMK and SRPMM systems, specifically the Strong Column Weak Beam design, are resistant to shear, and fulfill the detailed requirements for ductile structures. This study contributes to ensuring safer and more efficient building designs in seismic-prone areas.
Analysis Of Quarry Material Characteristics In Reclamation Work Using Sand Cone And CBR Methods (Case Study: Patimban Port Package 5) Alfahreza, Alvin; Firmansya, Aldi; Arya Faza, Sultan; Firmanto, Arief
Journal of World Science Vol. 4 No. 8 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i8.1478

Abstract

Soil compaction is an important process in reclamation work because it has a direct effect on the carrying capacity and stability of the structure built on it. This study was conducted in one of the specific work zones of Area C1a in the Patimban Port reclamation project, where sand material from various quarry sources is used, each having different physical characteristics that can affect the success of compaction. This study aims to analyze and compare the results of material compaction from four different quarries using the field density test (sand cone) and laboratory carrying capacity test (CBR) methods. The research methodology includes the analysis of physical characteristics such as particle size distribution and sludge content, as well as compaction quality testing after applying the same number of vibratory roller passes to each material. The results showed that the material from Quarry A achieved the highest average field density (104.71%), indicating the highest compaction effectiveness among the materials tested. In terms of carrying capacity, the material from Quarry B proved to be the most superior, with the highest CBR value both in dry conditions (103.00%), after submersion (58.00%). In contrast, the Quarry C material showed the highest sensitivity to water, as its CBR value decreased from 75.00% to 27.00% when submerged, which correlated with the highest silt content (9.21%). These findings demonstrate that the physical characteristics of materials, such as silt content and grain size distribution, are the main determining factors affecting the final yield of soil density and carrying capacity.