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Journal : Proceeding of World Conference

Comparative Study Of Structure Response Isolated Base And Not Isolated Base on IHF School Cimanggis Munthe, Agyanata Tua; Iksan, M
Journal of World Conference (JWC) Vol. 2 No. 2 (2020): March 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i2.205

Abstract

Along with technological developments in the field of civil engineering, various systems are used to reduce the impact of earthquakes on the structure. One system that has long been developed is a passive prevention system consisting of seismic isolation. Buildings that use seismic dumper are expected to fail structure when an earthquake occurs. This study discusses the comparison of internal forces in buildings using base isolation and without base isolation. The building which is the case study is the Indonesian Heritage Foundation school building in Cimanggis. The analysis uses the 2016 ETABS program. Earthquake analysis uses the Spectrum Response method. From the research results, it is known that the building which was installed with an insulator shakes the structure to 1,344 seconds. The vibration period of the structure increased 41% from the vibration period of the structure which still used a fixed base of 0.796 seconds. Seen from the intersection between floors the maximum direction of X can be reduced by 15.4% by installing an insulator. The same thing happened to the maximum inter-floor deviation for the Y direction deviation is muted by 27.75%. Base isolation installation reduces the moment in a column by 36% in the earthquake X direction and 61% in the earthquake Y direction. For column shear force is reduced by 58% in the earthquake X direction and 75% in the earthquake Y direction. Base isolation can reduce basic shear force in buildings by 24.49% in the X direction of the building and 22.24% in the Y direction.
Analysis of Strength, Stiffness, and Stability The Formwork Construction in LRT Jabodebek Project Munthe, Agyanata Tua; Noegroho, Muhammad Ardiansyah
Journal of World Conference (JWC) Vol. 2 No. 2 (2020): March 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i2.206

Abstract

The Upper Longitudinal Beam casting on the Jabodebek LRT Project requires a shoring to be able to withstand the workloads. To avoid the failure of formwork construction, formwork must meet the strength, stiffness, and stability requirements for each formwork component material. The analysis is carried out on the value of bending stress, deflection, and shear that occur in each component of formwork. From the analysis carried out each obtained as follows. Strength requirements with flexural stress values that occur in Plywood, Girder GT 24, and Steel Waller SRZ materials, each of which is smaller than ? permit = 100 kg / cm2, 70000 kg / cm2, and 1200 kg / cm2. Stiffness requirements with deflection values that occur on Plywood and Girder GT 24 material are ? permit = l / 400. Whereas the SRZ Steel Waller fulfills ? permit = l / 240. Stability requirements with shear stress values that occur in Plywood, Girder GT 24, and Steel Waller SRZ materials, each of which is smaller than ? permit = 12 kg / cm2, 1400 kg / cm2, and 696 kg / cm2. Peri Up Shoring can support all formwork loads. So it can be said that the construction of the Upper Longitudinal Beam formwork is in a safe condition.
Planning Parking Building Using Flat Slab And Drop Panel As A Replacement Conventional Beam With Analyzing Bending Moment Value & Sliding Style Based On SNI 1726-2012 Munthe, Agyanata Tua; Jatmiko, Guntur
Journal of World Conference (JWC) Vol. 2 No. 3 (2020): May 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i3.207

Abstract

The construction of a 5-stored parking building is planned to use a flat slab (with drop panels). Flat slab (with drop panel) is a type of two-way plate without beams that directly rests on the column. the flat slab can reduce the height of the structure and construction time. However, flat slabs require plates that are thicker than usual to overcome deflection and punching shears. In this final project, a 5-story reinforced concrete structure will be reviewed with a span of 8 x 8.3 m. Analysis and design was carried out with the help of the 2016 ETABS program to find the value of intersection between floors, shear moments and forces taking into account the consequences of dead load, super dead load, life, and earthquake (dynamic)
Analysis Tower Bts Sst 4 Leg Angular 42m Due To Extend and Additional Antenna Load: Case Study of The Semayap Kotabaru Location Arif Johansyah; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 3 No. 1 (2021): January 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

In BTS tower planning, the load that affects is the tower load itself, live load and lateral (side) loads that have a dominant effect is wind loads, because wind loads have high sensitivity to steel construction buildings (have a mass that tends to be light). Wind loads are calculated according to the Telecommunications Industry Association and Electronic Industries Alliance (TIA / EIA) standard structural standards for steel antenna tower and antenna supporting structure (TIA / EIA-222-G, 2005). The analysis uses the MS Tower V6 program, as an application to simplify telecommunication tower modeling. The purpose of this paper is to find alternative tower reinforcement so that it can withstand additional loads, be it additional loads due to extend and additional loads due to the proposed antenna.Based on the analysis results, the existing tower is still safe with a ratio of 0.345 <1, but the tower with an additional height and additional load of the antenna is not safe with a ratio of 1.189> 1, and the tower after being strengthened on the tower leg with a height of 0m-36m is done with STA (Star Angle) . And for reinforcement for leg towers at a height of 36-40m, it is done by adding the redundant member to the tower ratio to 0.689 <1, which means it is categorized as safe.Analysis with operational wind load (84km / hour), the reinforcement tower can withstand a maximum twist of 0.3436, a maximum sway of 0.0413, a maximum displacement of 0.1402.
Evaluation of Upper Structure Strengthening Due to The Level Addition Based on SNI 2847-2013 Regulation: (Case Study: PNJ Heavy Equipment Building) Vidia Intan Deliani; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

The number of college students, who came to Java Island especially Jakarta City, makes the availability of land will be limited, one who get affected is campus building. The solution that can be done is increase the level of building and evaluate the structural elements ability of existing building. This study aims to determine the effect of additional levels on the internal forces and dimensions of the upper structure and evaluate the conducted by analyzing existing building and building that have been added level using ETABS software which refers to SNI 2847-2013 regulations. The results showed that after the addition of level, moments and shear forces on beam increase averaging 43%, while the column increase averaging 22%. In column axial forces have increased averaging 47%. After the addition of level, structure of Heavy Equipment building is known that there are several structural components which is not strong enough to withstand the load, namely Beams B, B1, and RB consecutively as much as 6 frames, 26 frames, and 12 frames; Columns K, K1, and K2 consecutively as much as 18 frames, 12 frames, and 8 frames. Both beams and columns were strengthened by FRP (Fiber Reinforcement Polymer) so the dimensions of the beams and columns did not change. The strengthening of structural elements is as follows: Beams B, B1, and B2 are strengthened with FRP tensile strength of 2800 MPa, FRP thickness of 1,2 mm, FRP width of 80 mm and the number of FRP used is 1 layer. Columns K, K1, and K2 are strengthened with FRP tensile strength of 4300 MPa, FRP thickness of 0,167 mm, FRP width of 500 mm and the number of FRP used is 16 layer for columns K&K2 and 24 layer for column K1.
Comparative Analysis Study of ATC-40 and SNI 1726-2012 Guidelines For Beam Structure Performance and Column Trans Studio Apartments Applications Using Dynamic Response Spectrum Analysis Methods Agyanata Tua Munthe; Abdul Gafur
Journal of World Conference (JWC) Vol. 2 No. 2 (2020): March 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i2.204

Abstract

The earthquake that often hit Indonesia caused thousands of lives and caused damage to buildings. These earthquakes often occur because Indonesia is in two regions, namely the Pacific earthquake path (Circum Pacific Earthquake Belt) and the Asian earthquake lane (Trans Asiatic Earthquake Belt). Earthquake disasters cause damage to building structures. When an earthquake occurs, it is expected that the building can accept earthquake force at a certain level without significant damage to its structure. In general, earthquake analysis is divided into two major parts, namely static earthquake analysis and dynamic earthquake analysis. In buildings that are very high, irregular, multilevel, and buildings that require enormous accuracy are used dynamic analysis planning, which consists of a variety of spectral response analysis and dynamic time response dynamic analysis. This study aims to determine the building's security in terms of displacement, drift, and base shear. The method used is a dynamic analysis of the response spectrum using the ETABS program. The maximum total drift in the X direction is 0.0200475 m and in the Y direction is 0.020405 m, so the building is safe against ultimate boundary performance (0.02h) and service boundary performance {(0.03 / R) x h}. So that the displacement in the building does not exceed the maximum displacement, the building is safe from earthquake plans.
Effect of Using Roof Clay and Charcoal Ash as a Substitution of Coarse Aggregate and Cement in a Concrete Compressive Strength Agung Sumarno; Dyah Robbiana Zulfa; Syafwandi; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 4 No. 4 (2022): July 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Infrastructure and technology development in the construction sector are rapidly evolving, particularly in Indonesia. Because practically every construction building is built of concrete, this supports the increased use of natural materials as raw materials for creating concrete to keep up with the world's rapid development. As a result, new technologies are required to limit the use of substitute elements in concrete mixtures while also minimizing environmental damage. The researchers used clay tile waste and charcoal ash as a substitute for coarse aggregate and cement in the concrete mix in this final project. This study uses an experimental approach with a total of 36 samples of cylindrical samples with a size of 10cm x 20cm, a substitution variation of 20%, 25% of total coarse aggregate, and charcoal ash 5% of total cement weight. On days 3, 7, 14, and 28, the test object will be slumped to see how workable it is and how strong it is. According to the findings, the higher the percentage in the concrete mixture, the lower the slump value, and the compressive strength test results. The highest is the 25% GTL substitution variation. At the age of 28, 5% AA equals 27.3 MPa. The results of testing the compressive strength of concrete with the substitution of tile waste reached the quality of K-225.