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Jurnal Teknik Sipil dan Perencanaan
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 25031899     DOI : https://doi.org/10.15294/jtsp
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil dan Perencanaan (JTSP) is a scientific journal which biannualy published in April and October. We firstly published in 1999 as national journal of Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Semarang. In 2016, JTSP was indexed in DOAJ with Green Tick critera. And in 2018, JTSP expands its range of article quality and publication through publishing English-language articles.
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Articles 18 Documents
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Search results for , issue "Vol 21, No 2 (2019)" : 18 Documents clear
The Study of Infrastructures and Riparian Area at Krasak Watershed, Indonesia Ikhsan, Jazaul; Hilmi, Ikhlassul; Harsanto, Puji; Nursetiawan, Nursetiawan
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20569

Abstract

Debris flow that cause the eruption Merapi mount in 2010 caused damage at some infrastructure that is on the Krasak River. Some areas had gotten debris flow which was resulting break up the important access street that had been connecting between Yogyakarta and Magelang. Krasak river is one of the rivers that has upstream on the Merapi slope mount and also got impact of debris flow in 2010. This research is aimed to know condition of infrastructure and edge river at the Krasak river after got impact of debris flow. This research is using survey method that directly observes to the object of research for knowing condition infrastructure and edges river with survey form 123. The result of the research is showing some infrastructure river that is getting damage caused of cold lava. Debris flow had happened in the past, so some of infrastructure had been repairing. But there is some infrastructure still has little damage. However, the function of this infrastructure is showing good condition. Condition of edges river are still secure, it happens because the Krasak river had pass through regions plantation, but there is some locations of the settlement is in the riparian area or debris prone area.
Lateral Deflection of Single Pile due to Lateral Loads in Clay Soils based on The P-Y Curve Method with Finite Difference Solution, ALLPILE Program, and PLAXIS Program Ba'ist, Ahmad Jirjisul; Upomo, Togani Cahyadi; Apriyatno, Henry; Nugroho, Untoro
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20961

Abstract

The foundation has a function to hold the load in the form of axial load, lateral load and moment. The axial load on the pile foundation is supported by the pole end resistance and pile friction, while the lateral load on the pile foundation is supported by the relation of the blanket area along with the pile with the ground in the lateral direction. Lateral load causes lateral deflection in which the magnitude of deflection must not exceed the permissible lateral deflection limit of 2.54 cm. The determining factors in lateral deflection are the type of pile foundation, soil type, and the magnitude of the force that occurs. The foundation of a single pile in which the number of one pile, when embedded in clay soil, needs to be investigated for the magnitude of lateral deflection that occurs, this is due to the changing nature of the clay when under the influence of high or low water content. The foundation of the pile uses a concrete head with a condition of a free end with a cylindrical shape with a diameter of 60 cm that is not solid with a wall thickness of 10 cm and a compressive strength of concrete of 60 MPa. Clay soil data uses soil drilling test data in Wirosari, Grobogan, Central Java. The planning method used is the finite element method (PLAXIS program) and the finite difference method (py curve and the ALLPILE program) with lateral load variations of 10 kN, 15 kN and 20 kN given to the top end of the pole with the principle of giving trial and error loads. The results of the calculation of the lateral deflection of the pile on the py curve method with a finite-difference resolution, the ALLPILE program, and the PLAXIS program respectively with a lateral load of 10 kN are 0.0629 cm; 1.21 cm; 0.27 cm, lateral loads of 15 kN are 0.0943 cm; 2.13 cm; 0.4051 cm, and a lateral load of 20 kN is 0.1258 cm; 3.14 cm; 0.5402 cm. Thus the lateral deflection load limit is 15 kN, so as not to exceed the permissible lateral deflection limit of 2.54 cm. The recommended method used is the ALLPILE program to better get the level of security from the lateral deflection of the pole when applied in the field
Maximum Control Water Level (CWL) Jatibarang Dam to Avoid The Possibility of Overtopping Due to Flood 100 Years Sutopo, Yeri; Utomo, Karuniadi Satrijo
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20507

Abstract

The study of the maximum water level control of the Jatibarang reservoir is to avoid the possibility of overtopping due to flooding after 100 years return period, therefore it is necessary to take into account the changes in land use, which were once shrubs turned into settlements. Changes in land use result in an increase in the drainage coefficient which results in an increase in surface runoff so that the flood discharge in the river becomes even greater. Jatibarang Dam in Semarang at the time of planning was still designed to use flood discharge return period of Q 50 years; whereas the water structure has included a hazard level classification, so flood safety standards should have been used return period of the Q 100 years. The aims of this study are (1) to analyze the maximum CWL value in the main spillway of the Jatibarang dam based on the analysis of flooding due to Q 100 years; and (2) comparing the maximum CWL value of the main overflow dam Jatibarang results of planning using Q 50 years with the maximum CWL value of the main overflow dam due to flood discharge Q 100 years.This type of research was a survey. Data collection methods used were observation and documentation. The observation method was used to determine the coordinates of the dam spillway, which was then used to make a Jatibarang dam spillway watershed map and directly observe the Jatibarang dam spillway construction. The documentation method was used to collect rainfall data.The inflow flood hydrograph for a 100 year return period is 1838.84 m3/s, while the outflow is 227.57 m3/s, thus the Jatibarang reservoir can accommodate or store flood discharge of 1611.27 m3/s. The maximum elevation of the Jatibarang dam spillway is +155.3. The flood routing results show that the highest elevation is +154.05 at ten time. Comparison between the highest elevation of Q 100 years flood routing results which is equal to +154.05 is lower when compared to the maximum elevation of the Jatibarang dam spillway which is equal to +155.3; so that the main spillway elevation is still able to overcome of Q 100 years. Thus the Jatibarang dam spillway is still safe against the highest elevation of flood Q 100 years.
Inclusive Public Service Space For Elderly With Disabilities Balance In Poncol Station District Semarang Desectasari, Dhiaz Putri; Ristianti, Novia Sari
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.19704

Abstract

The public spaces in essence should be able to accommodate the users. Especially with users who have special needs or called user inclusive. One thing that is often overlooked in the application of the space design is elderly. Though the government launched the Elderly Friendly Cities program and one of them is the most populous Semarang in Central Java, 34 percent of the total population. Poncol Station Semarang is an example of public service that is not fully provide even distribution in terms of design. In fact, Poncol station offers ticket price reduction if the purchase is done directly at the station counter by twenty percent of the original price of special elderly where their activities should be contained fully included in the design space that is enterance Pre-Area, parking and drop-off, and the building area is the lounge, counters, toilets and platforms. Therefore, the question arises of research "Any element of design in the public service Poncol stations required for the creation of inclusiveness for the elderly with limited balance?". Therefore, the purpose of this study is to formulate needs space design elements inclusive public services for the elderly in Poncol Station. Using quantitative research methods to obtain a picture of the elderly activity conducted in each room at Station Poncol and needs in order to create design elements inclusivity using quantitative descriptive techniques. The results of this study found a tendency for the needs of design elements and limitations.
Characteristics of Glass Materials that Influence the Level of Thermal Comfort and Building Energy Consumption Ayuningtyas, Nurina Vidya; Iskandar, N; Suryabrata, J A
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20894

Abstract

Energy requirements are increasing rapidly. The building sector is one of the world's largest energy consumers. The proportion ranges from 10-15 percent in developing countries and more than 40 percent in developed countries. Building is designed to accommodate human activities should apply designs that are able to minimize the amount of energy consumption during the construction process and when the building is operating and occupied. The simulation process in this study was computerized with the help of the main software used was EnergyPlus v8.1 and version 0.7 of Open Studio plugins that were run on Google Sketchup v7.0 software. Simulation is only done on one typical floor in the position in the middle of the total height of the building. The dimensions of this hypothetical floor are 40m x 40m with floor to floor 4.2 m height and floor to ceiling 2.8 m. This model is expected to represent the typical office building. The amount of energy consumption in this building is indirectly derived from the design of the building envelope. The results of this study indicate the greater the value of Solar Heat Gain Coefficient (SHGC), the greater the heat radiation from sunlight that will enter the building / room. The results in higher temperatures in the room and higher energy consumption in the building. Every decrease in SHGC is 0.2, it will increase energy consumption by approximately 9 kWh / m2. In addition, to achieve the thermal comfort of occupants by doing a decrease in room temperature settings it will also have an impact on the amount of energy consumption. The increase in energy consumption of each Air Temperature is lowered by 1°C by 3.44 kWh / m2. 
Ground Vibration Analysis of Railroad Dynamic Loads on Rail Structure Kusumawardani, Rini; Zelin, Mufita Aulia; Kusbiantoro, Arief
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20957

Abstract

The railroad structure consists of rail steel, sleepers, fastening, ballast, sub-ballast and subgrade. The load of the passing train at a certain speed can produce vibrations channeled through the train wheels to the railway steel to be forwarded to the sleepers then to the ballast and distributed to the subgrade. The amount of vibration caused by the train can be seen from the value of the acceleration, amplitude and frequency of the vibration. In this study, the accelerometer sensor was used to detect the magnitude of the vibration acceleration. The vibration acceleration data was then processed using Geopsy software to obtain the value of natural frequency and vibration amplitude using the HVSR (Horizontal to Vertical Spectral Ratio) method. The value of acceleration due to railroad vibration of 0.14 g - 0.64 g with a position placed 1.5 m sensor from the edge of the rail. The biggest vibration acceleration is 0.26 g x direction, 0.39 y direction and 0.29 z direction caused by Maharani trains that pass at a speed of 65 km / h and a load of 728 tons. The natural frequency of vibration obtained value 2.4077 Hz - 5.392 Hz. The highest natural frequency was caused when the Maharani train, which was 5.392 Hz. Train speed and load affected the vibration of the rail structure. The acceleration of vibration increased when the train speed and load increased
Analysis of fuzzy TOPSIS Method in Determining Priority of Small Dams Construction Ulfiana, Desyta; Suharyanto, Suharyanto
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.19957

Abstract

The limited government budget for the construction of small dam in Semarang Regency has led to the need to determine the construction priorities. However, the large number of construction's technical aspects causes the determination of the construction priorities to be difficult. One of the best methods for multi-criteria decision making is the Technique for Order Performance by Similarity to Ideal Solution (TOPSIS). However, ranking and weighting of the criteria that use in these constructions were difficult. It was caused by human assessment factors that were less precise especially on linguistic variables criteria. Therefore, a fuzzy logic was needed for calculating these criteria. There are eight alternatives of small dams and seven criteria of technical aspects analyzed in this study. The first step was determining membership function and weighting each criteria. Then, TOPSIS method was applied to ranked eight alternatives. The highest priority was determined by finding alternative that has the largest closeness coefficient (CCi). It represents alternative with closest distance to fuzzy positive ideal solution and farthest distance to fuzzy negative ideal solution. Based on analysis, Mluweh Dams has the highest CCi value of 0.612. It could be concluded that Mluweh Dams is the highest construction priority of small dams in Semarang Regency.
Revealing Community Awareness in Semarang Heritage Area Dewi, Santy Paulla; Debby, Tiara Rizkyvea
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.21252

Abstract

The China Town Area is one of the historic areas that influenced the formation process of the Semarang City since the 17th century. However, in its development, there are several issues which are challenging in preserving the China Town as a cultural heritage area. Public awareness is one of the issues that arise in the heritage preservation effort.. Public awareness is formed based on knowledge that affects the community’s role of in the preservation. This research reveals the level of community awareness of the China Town Semarang towards the preservation of the Cultural Heritage Area. Qualitative research method was used to explain existing situation of community awareness. Interview was conducted with several key persons, for instance the Lurah, the owner of the Cultural Heritage Building, handicraft owners, and local community to find out the characteristics and their role in the preservation. Based on the analysis, it is found several issues exist suc as population number that decreases, high level of community migration, and buildings facade change. These issues affect the social conditions of the community, especially the understanding and awareness of the local community regarding the conservation of the China Town area as a Cultural Heritage Area. The factor of trust and upholding the customary principles is the background of the China Town community still maintaining its ancestral heritage.
Debonding Behavior of Conventional Concrete Strengthened with Anchored FRP and Staked Ariyansyah, Rona; Gunadi, Riawan
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.19927

Abstract

Concrete structures can be damaged or deteriorate due to various reasons such as errors in planning, implementation factors, getting overload burden, decreased capacity and quality of structures, and changes in structural functions. Thus, to strengthen the damaged structures, there is a need for an investigation regarding the damage to the existing concrete structures. Retrofitting FRP (Fiber Reinforced Polymer) to the damaged structures can be a reinforcement alternative. The bond shear between FRP and concrete need to be considered in using FRP to solve the damaged structure. Shear behavior on the bonded structures greatly affects the condition of the structure. Therefore, this study aimed to examine the effect of anchors and stakes on FRP debonding behavior. This study was carried out experimentally to obtain the results and data on the effects of the anchors and stakes. This study used 9 specimens with a size of 150 mm x 150 mm x 300 mm. From those 9 specimens, 3 specimens were specimens without reinforcement (FR), 3 specimens were reinforced with anchor (FRA), and 3 specimens were reinforced with anchor and stake (FRAP). The test method used in this study referred to ASTM D5379 concerning the Standard Test Method for Shear Properties of Composite Materials. From the bond shear test of each FR, FRA, and FRAP specimens, it was found that the average maximum shear load was 19.405 kN, 28.465 kN, and 29.699 kN, consecutively.
The Study of Infrastructures and Riparian Area at Krasak Watershed, Indonesia Ikhsan, Jazaul; Hilmi, Ikhlassul; Harsanto, Puji; Nursetiawan, Nursetiawan
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 2 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i2.20569

Abstract

Debris flow that cause the eruption Merapi mount in 2010 caused damage at some infrastructure that is on the Krasak River. Some areas had gotten debris flow which was resulting break up the important access street that had been connecting between Yogyakarta and Magelang. Krasak river is one of the rivers that has upstream on the Merapi slope mount and also got impact of debris flow in 2010. This research is aimed to know condition of infrastructure and edge river at the Krasak river after got impact of debris flow. This research is using survey method that directly observes to the object of research for knowing condition infrastructure and edges river with survey form 123. The result of the research is showing some infrastructure river that is getting damage caused of cold lava. Debris flow had happened in the past, so some of infrastructure had been repairing. But there is some infrastructure still has little damage. However, the function of this infrastructure is showing good condition. Condition of edges river are still secure, it happens because the Krasak river had pass through regions plantation, but there is some locations of the settlement is in the riparian area or debris prone area.

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