Cyclops : Jurnal Teknik Sipil dan Perencanaan

ANALYSIS OF SOIL GRAIN SIZE DISTRIBUTION TO DETERMINE SOIL TYPE USING THE ASTM METHOD

Juanita Horman, Mohammad Fauzi, Clasina Mayaindrawati — Tue, 21 Nov 2023 00:00:00 +0900

Soil is defined as material consisting of aggregates (grains) of solid minerals that are not cemented (chemically bound) to each other from weathered organic materials (which are solid particles) accompanied by liquids and gases that fill the spaces. empty between the particles. Soil grains greatly influence the properties of the soil, so that the size of the grains will differentiate the soil in naming and classification categories. The aim of this research is to determine the distribution of soil grain sizes using the Sieve Analysis method and Hydrometer testing and determine the type of soil based on the distribution of soil grain sizes. . The soil samples analyzed were taken from the land excavation project for the construction of the State Finance office building in the city of Jayapura. The results of the laboratory tests carried out were obtained. The grain size distribution of soil samples in the Jayapura Finance Building area which was tested using sieve analysis testing and hydrometer testing, had grain sizes ranging from from 0% Gravel, 54.545% sand, 20.186% Silt and 25.269% Clay. Based on the test results, it can be concluded that the soil in the area of the State Finance Office Building located in the city of Jayapura based on the grain size distribution of the ASTM D 653 method is included in the sandy loam soil type.

RECTORATE BUILDING PERFORMANCE EVALUATION YAPIS PAPUA UNIVERSITY DUE TO THE INFLUENCE OF THE EARTHQUAKE IN JAYAPURA

Mahdika Putra, Didik Mabui, Mamik Wantoro — Tue, 21 Nov 2023 00:00:00 +0900

An earthquake measuring 5.4 on the Richter Scale (based on the BMKG report) occurred in the city of Jayapura on 09 February 2023 which caused damage to buildings and casualties. The large number of fatalities and injuries that occurred were mostly not caused by the earthquake itself, but because of being hit by collapsed buildings and falling materials. The condition of the buildings after the earthquake certainly left the remains of the building experiencing damage such as cracks in the walls, cracks in the structural parts of the building, partial collapse of the building, and there were even buildings that experienced total collapse, namely being razed to the ground. The Yapis Papua University rectorate building was one of the buildings damaged by the earthquake. The type of damage to the building is determined visually or using calculations of the structure's bearing capacity after an earthquake, then an analysis of the building's ability to carry the loads acting on an earthquake is carried out and recommendations for repairs to the building are provided. This research began with a field survey and a hammer test was carried out to obtain the compressive strength of columns (35 Mpa), beams (35 Mpa), dimensions and plans of the existing building and the existing data will be input into the SAP program to evaluate the building structure. Based on the results of structural analysis using the SAP program, the output obtained is entered into column Pu and Mu graphs and column shear capacity graphs. Apart from that, the cross-sectional capacity of the working column is also checked. Next, we can conclude the cause of the damage to provide recommendations for repairs that can be made for parts of the building that are damaged and weak in bearing the forces at work. Next, a re-analysis is carried out to ensure the strength of the building after being strengthened to carry the load so that the building is declared suitable for reuse.

THE EFFECT OF SEAWATER SOAKING ON THE STABILITY OF AC-WC MIXTURES USING KOYA AGGREGATE, JAYAPURA CITY

Sri Maulin, Adri Raidyarto, Sigit Riswanto — Tue, 21 Nov 2023 00:00:00 +0900

Roads are the basic infrastructure in driving the regional economy, so a good pavement structure is needed. One of the factors of road damage is standing water, for roads around the coast are likely to be inundated by sea water. Asphalt Concrete Wearing Course (AC-WC) is one of the concrete asphalt layer which is able to provide good carrying capacity and waterproof layer for road structures. Some areas in kota Jayapura such as Koya have a large number of local aggregates. This study used oil asphalt as a binder, local aggregate for hot asphalt mixture, and saw the effect of sea water immersion in the asphalt mixture. The purpose of this study is to determine the volumetric value and Marshall value of the Laston AC-WC mixture against sea water immersion and without immersion. The material used is oil asphalt from PT. Pertamina and local aggregates from the Koya area. The research carried out is an experimental test in the laboratory, where the resulting asphalt concrete mixture (AC-WC) will be treated with sea water immersion, then Marshall characteristics testing will be carried out to determine its durability value. Based on the tests carried out, the results showed that the volumetric value and the marshall value of the samples treated with immersion did not provide a significant difference in values compared to normal samples. The results of the marshall value, namely the stability of all asphalt levels meet the specifications, while for flow only the asphalt content of 5.5% and 6% both by soaking and without soaking.

PERFORMANCE EVALUATION OF KENDARI CITY PUBLIC TRANSPORT (Puuwatu – Mandonga route)

Muhammad Zulfikar, Rezky A. Wibowo, Andung Yunianta — Tue, 21 Nov 2023 00:00:00 +0900

The public transportation that serves the Kendari city area, Puuwatu Route - Mandonga is Rural Public Transportation. Available with 38 fleets. The aim of this research is to determine the performance of rural public transport in the city of Kendari. The method for evaluating public transport performance is to conduct an analysis of public transport performance parameters. There are 9 parameters that will be researched, namely Round Trip Time, Vehicle Frequency and Frequency Variance, Load Factor, Time Headway, Number of Trips and Mileage per Vehicle per Day, Cycle Time, Number of Passengers per Vehicle per Day, Number of Vehicles, and Circulation Time. The values of these performance parameters are obtained through analysis of data obtained from dynamic and static surveys. The results of research on the Puuwatu - Mandonga Mall route show that this route is in the poor category.

PRE-MODERN ARCHITECTURAL HISTORY

Aristotulus Tungka, Benhard Harianja, Setiaji Putra — Tue, 21 Nov 2023 00:00:00 +0900

This research was created to examine the historical development of architecture before the 18th century which was the beginning of the development of modern architecture (18th century-now) in Europe, America and Asia. This study was made to find out the character of the building and what parameters were often considered by architects of that time to produce a design that was realistic, phenomenal and acceptable to many people. This study uses an objective perception assessment by conducting a literature study from several books and electronic media to investigate the architect's perception of thinking, and what factors are behind the presence of this architectural work. This research also tries to look for similarities, differences and connections that may exist from each period before pre-modern, especially to look at approach models in the context of architectural styles, building functions, values, material selection, utility and established structural systems. It is hoped that the results of this research can be used as mapping material to determine the character of space, form, facade and values used by pre-modern architects in knitting independent themes into one phenomenal formulation of ideas. The results of this study show that the architectural context parameters used in designing buildings in the pre-modern era used different approaches and were heavily influenced by political conditions of power, religious sentiments and beliefs, sectoral and individual egoism and natural and geographical characteristics.

THE INFLUENCE OF SPACE ENVIRONMENT MATERIALS ON THE DURABILITY OF MUSEUM PAINTING COLLECTIONS (Case Study: Gallery Building 1, Affandi Museum Yogyakarta)

Rhodis Ndoen, Albertus A. Pranata, Andi Syaifaurrizal — Tue, 21 Nov 2023 00:00:00 +0900

The painting gallery is the main storage place in a museum. Collections stored in the museum have certainly been stored for a long time. Therefore, the researcher will see how the influence of scoping elements on the gallery building on the painting collection from the affandi museum. The research method in this study uses simulation with Autodesk Ecotect Analysis 2011 software, as well as field observation methods by recording the existing conditions of Gallery 1 of the Affandi museum, Yogyakarta. The temperature in the gallery 1 building is strongly influenced by the type of material used. After the second simulation, there is a difference in the resulting temperature even though it does not meet the requirements of POSOKM. It is very difficult to reduce the room temperature if it is only determined based on the type of enclosure material considering that this building has minimal air ventilation