INFRASTRUCTURE DESIGN PRACTICE OF BUILDING, ROAD, WATER STRUCTURE, AND COST AND TIME PLANNING

Tresnohadi, Alvin (2022) INFRASTRUCTURE DESIGN PRACTICE OF BUILDING, ROAD, WATER STRUCTURE, AND COST AND TIME PLANNING. S1 thesis, UNIVERSITAS ATMA JAYA YOGYAKARTA.

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Abstract

Infrastructure Design Practice of Building, Road, Water Structure and Cost and Time Planning is a recapitulation of project practice that has been conducted during the study of civil engineering program at Universitas Atma Jaya Yogyakarta. This recapitulation consists of design calculation and planning estimation. Each practice has different objective, so the practitioner has to learn to analyze and design of each different infrastructure practice. In building design practice, analyzing and designing of a 4-story building is the main focus. Its aim is to design and calculate whether the building is stable or not. The term stable refers to meet the standards of SNI. In this practice the method used was by using ETABS program to design the whole structure, AutoCAD program to assist in detailing process of building structure design, and PCACOL program to assist calculating for column structure reinforcements, also manual calculations by analyzing of each structure are needed to ensure that the whole structure is stable by referring to the standards of SNI. In conclusion from the problems and methods of this practice that is done, the author can conclude that in this practice the designed building and its structures has met valid standards that refers to SNI (Standar Nasional Indonesia). In the practice of road design, the main focus is to analyze a certain intersection that uses traffic light to control the movement of vehicles that passes through the intersection. The aim of this practice is to design the traffic lights time period and calculate the delay of vehicles. The method used was recording and count the vehicles that is passing through the intersection and calculating the data by using Webster’s method. From the practice that is done the author can conclude that the design that has been calculated by using Webster’s method can be used to determine the traffic lights period and delay of vehicles. The main focus of water building design practice is to analyze the Kadirejo weir to use the average daily precipitation as the data and estimate the upcoming flood discharge of a weir building. This practice also studied about determining whether the weir is safe and stable. While the method used is Frequency Analysis iv method to find the probability distribution, then using the normal logarithm method to estimate the upcoming rainfall date and using the Haspers’ method to estimate the weir flood discharge. By studying this practice, the author can conclude the weir flood discharge of 200 years’ future return period is 720,068 m3/s and the weir structure is stable and safe against different factors of safety. The last practice summary is cost and time planning, its focus is to calculate the total cost required of the project and estimate the time to completely finish a building construction project. Manual calculation method is conducted by referencing the SNI to estimate the project cost and time is the method used for this practice. By calculating the work volume of the project and the unit cost of materials and labor, the total cost of the project can be obtained. Continue to the calculation of work duration estimation, then proceed to create network diagram, bar chart, and s-curve. After the author has completed this practice, the conclusion is that the calculations made for cost and time estimation used to build the project can differ from the actual field, because some factors including weather, and the others may happen outside of SNI reference calculations.

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