Analisa Produktivitas Tenaga Kerja Pada Pekerjaaan Rangka Atap

Productivity is an important factor in determining the success of a construction work. Increased productivity will reduce work time, and that means it will reduce costs. In general, the value of productivity is determined by the factor of the volume of work, implementation time, and the number of workers. In order to get the job done well, a planning effort is needed by paying attention to these factors. For this reason, this study was conducted to determine the value of productivity in one component of building construction work, namely lightweight steel roof truss work. The object of study was the work of lightweight steel roof truss 4 (four) project sites, namely the 4 x 25 Shop Houses Construction Project in Meulaboh, West Aceh, the Building of the Rector & Administration Bureau Building of STKIP Bina Bangsa Getsempena Banda Aceh, the Construction of the Getsempena Lhoksukon North Aceh STIKES Building and the Construction of North Aceh RIKI STIKes Building, Bina Nusantara Idi, East Aceh. The roof truss material used is type C Truss 75 0.75 Thickness. The volume of roof truss work is planned to be 2022.38 m2. The study was conducted through field observations by directly recording the volume of work, the duration of each stage of work, and the number of workers involved. The results of the analysis show that the productivity value for roof truss works is obtained by an average of 2,062 m2 / hour or 16,499 m2 / day. In the implementation of roof truss work, the amount of labor used is the same in all segments, so the value of productivity tends to be determined by the magnitude of the ratio between the volume of work and the effective time of implementation. Thus, if the amount of work volume can be completed in a shorter time then the value of productivity will increase

Pemodelan Kecepatan Arus dan Tinggi Gelombang Pada Rencana Breakwater Kolam Pelabuhan Meulaboh Dengan Menggunakan Program Delft3D

The Meulaboh port in West Aceh Regency is one of the ports in the west coast of Aceh Province. Initial operation of this port began in 2016 and currently serves crossing activities with the Meulaboh - Sinabang pass. The Meulaboh port is located in open water facing the Indian Ocean. In extreme conditions, ships often have to delay shipping due to high waves that cause shocks to the ship. Based on these problems, the study will provide an overview of the impact and hydrodynamic response of the Meulaboh port pool area and analyze the impact of wave heights on activities in the port pond based on several Breakwater construction layout scenarios. Alternative handling scenarios are carried out using the Delft3D program. The distribution of wave height at the direction of the wind from the Southwest with Hs = 4.908 m, and Ts = 7.254 seconds which shows the dominant wave from the Southwest restrained by Breakwater and the wave height in front of the port mouth ranges from between 0-1 meters so it is safe against activities cruise.

Persepsi dan Motivasi Dalam Memilih Perumahan (Studi Kasus: Perumahan Villa Citra dan Villa Buana Garden)

In addition to being the center of Aceh's administrative administration, Banda Aceh is also the center of economic, educational and trade activities, so that economic growth and the population grow rapidly. Consumer factors in choosing housing vary greatly, because each individual has different desires in choosing the desired housing. The purpose of this study is to find out consumer factors in choosing and determining the desired housing. Based on the theories and views outlined, a resume can be made about consumer preferences in choosing and determining residence/housing. The results of the conclusion analysis of 100 respondents kept Villa Citra housing 39.02% age <30 years and 26.83% aged> 51 years while in Villa Buana housing 42.37% were aged 31-40 years. The two houses were complying with the Bachelor degree educational background, namely: 60.98% Villa Citra and 67.80% Villa Buana. analysis that 43.90% earned IDR 1,000,000 - 2,500,000 chose Villa Citra housing because of the influence of the distance to the city center of about 3.5 Kilometers. while Villa Buana reached 61.02% with an income of IDR 2,500,001 - 4,000,000 with an urban center of around 5.5 Kilometers.

Desain Ulang Balok dan Kolom Komposit

The aim of this study is to redesign the beams and columns of reinforced concrete into a composite structure of Women's Empowerment and Child Protection Agency to derive a comparison of strength and efficiency between concrete-steel composite structures and reinforced concrete structures without changing the layout of columns and beams in the initial planning. LRFD (Load Resistance Factor Design) method and SAP2000 ver.14 as a tool were used in this study. The design was based on Indonesian Standard Regulation. The concrete strength (f’c) and steel strength ( were25 MPa and 250 MPa, respectively. In this study, steel profile BJ 37of WF (400 x 400 x 21 x 21) mm was used for beam and WF (400 x 400x 30 x 50) mm with concrete cross section (500 x 500) mm for column. The results of redesign composite structure for three-story building with the designed steel profile is fulfilled the strength requirements. The obtained maximum moment of beam and column are 36789,36 kg.cm and 43942,2 kg.cm, respectively. The used of composite material is 76,925% more expensive than reinforced concrete material.

Identifikasi Potensi Pembangkit Listrik Tenaga Hybrid (PLTH) Angin dan Surya di Kabupaten Aceh Besar

The Wind and Solar Hybrid Power Plant (PLTH) research is expected to be able to contribute to assist the development of electricity supply in Aceh and gradually reduce and substitute the use of fossil energy. Hybrid Power Plant (PLTH) by combining wind energy and solar energy is a sustainable electricity supply technology that is increasingly popular because it is environmentally friendly and is not much constrained by land conversion. This research by measuring wind speed and solar radiation was carried out at selected locations in Aceh Besar District namely Lhoksedu, Lampuuk, Lambadeuk and Krueng Raya. The Lhokseudu location has a maximum wind speed of 6.3 m / sec and an average wind speed of 1 m / sec while solar radiation is a maximum of 764.90 W / m2, an average of 467.87 W / m2 and a minimum of 155.40 W / m2. Location Lampuuk maximum wind speed of 7.6 m / sec and average wind speed of 1.1 m / sec while maximum solar radiation is 1193 W / m2, average 678.74 W / m2 and minimum 30.20 W / m2. The Lambadeuk location has a maximum wind speed of 13 m / sec and an average wind speed of 1.3 m / sec while maximum solar radiation is 1589 W / m2, an average of 626.01 W / m2 and a minimum of 38.50 W / m2. The location of Krueng Raya is a maximum wind speed of 9.4 m / sec and an average wind speed of 3.1 m / sec while solar radiation is a maximum of 1019 W / m2, an average of 811.65 W / m2 and a minimum of 493.50 W / m2. Based on the results of data collection and analysis of wind speed and solar radiation that have been carried out including using secondary data / wind speed data from Blang Bintang BMKG Station at Sultan Iskandar Muda Airport and BMKG Indrapuri Station, it can be concluded that the more potential for PLTH development is the location Lambadeuk and Krueng Raya.

PENGARUH VARIASI DIAMETER MAKSIMUM AGREGAT DALAM CAMPURAN TERHADAP KEKUATAN TEKAN BETON

Aggregate is a natural mineral grains that serve as filler in concrete mix, and the greatest material contained in the concrete. These material influence on the properties of concrete, so that the diameter size selection is essential in making the concrete. This study aims to determine the effect of variations of aggregate maximum diameter to the compressive strength of concrete. In this study used 15 specimens, were divided into 3 groups witch each of 5 specimens. Each group is distinguished aggregate maximum diameter: 31.5 mm, 16 mm, and 8 mm. Specimens used in this study is the specimen cylinder with a diameter of 15 cm and 30 cm high. Speciment tested done at age of concrete 28 days. The average compressive strength of concrete for each group of test based on variations of the aggregate maximum diameter is: for the aggregate maximum diameter of 31.5 mm = 249.67 kg / cm2; the aggregate maximum diameter 16 mm = 274.91 kg / cm2; and the aggregate maximum diameter of 8 mm = 326.74 kg / cm2. Based on these test results, show that the average compressive strength of the concrete for the aggregate maximum diameter of 16 mm is 10.11% stronger than the concrete with the aggregate maximum diameter of 31.5 mm; and the strength of concrete aggregate maximum diameter of 8 mm, 30.87% stronger than the concrete with aggregate maximum diameter of 31.5 mm.

Analisis Kebutuhan Sumur Resapan Sebagai Salah Satu Upaya Dalam Mereduksi Banjir Genangan

Impermeable land in a region can not absorb rain water, so that rain water becomes run off and cause flood inundation. Absorption wells function to accommodate and absorb rain water into the soil. The purpose of this study to know the value of soil permeability, determine the dimensions and number of absorption wells in reducing flood. The study was conducted at Elementary School 1 Pulo Ie Kabupaten Nagan Raya with area of 1500 m2 and the number of buildings as many as 4 units. The absorption well planning refers to regulation of the Minister of Public Works 11/PRT/M/2014. The data used in the planning form average daily rainfall, flood volume, soil permeability value, runoff coefficient value, depth of ground water level and wide field of cistern. The result of analysis obtained maximum daily rainfall average maximum (R) equal to 36,25 mm/day, volumes of flood (Vab) 11,552 m3, cistern area 497 m2, runoff coefficient value of 0.75 and soil permeability value (K) 0.009725 cm/sec or 8.40 m/day. Rectangular Absorption wells with depth of well (H) 1.60 meters and base well (L) width 1.20 meters. The number of absorption wells required 5 units. Thus, the flood of inundation at the Elementary School 1 Pulo Ie can be accommodated by the absorption wells, so that the flood of inundation can be overcome.

PEMANFAATAN LIMBAH PEMBANGKIT LISTRIK TENAGA UAP (PLTU) NAGAN RAYA SEBAGAI BAHAN STABILISASI TANAH EKSPANSIF

Tanah ekspansif adalah tanah yang kandungan lempungnya memiliki potensi kembang susut akibat perubahan kadar air. Kondisi jalan pada ruas jalan Ie Mirah-Lama Muda (Kabupaten Aceh Barat Daya) mengalami hal yang sama, yaitu cepat mengalami kerusakan meskipun sering dilakukan perbaikan pada lapisan permukaan (surfase). Tujuan dari penelitian ini adalah untuk mengetahui apakah fly ash yang berasal dari PLTU Nagan Raya layak dijadikan bahan stabilisasi untuk proyek-proyek jalan pada tanah ekspansif khususnya ruas jalan lintas barat Aceh. Metode yang dilakukan adalah dengan melakukan stabilisasi tanah dengan menambah Fly Ash dan melakukan pengujian di Laboratorium Pengujian yang dilakukan adalah analisis kadar air, analisis saringan, analisis berat jenis, pengujian batas attenberg, analisis CBR dan pemadatan standar proctor. Hasil dari uji laboratorium menunjukkan adanya penurunan berat jenis sampel tanah disebabkan karena tanah distabilisasi dengan fly ash yang memiliki berat jenis yang lebih kecil. Hasil dari penambahan Fly Ash menurunkan kadar air dalam campuran tanah. Hal ini sangat menguntungkan dalam proses stabilisasi karena potensi pengembangan tanah semakin berkurang. Hasil test Attenberg menunjukkan penambahan Fly Ash 20% mampu menurunkan nilai indeks plastisitas dari 28,61% menjadi 2,88%. Hal ini terjadi karena penambahan Fly Ash menyebabkan terjadinya ikatan antar partikel dan tertutupnya sebagian pori-pori tanah sehingga tanah menjadi kurang sensitif terhadap perubahan kadar air. Penambahan Fly Ash meningkatkan berat isi kering karena terjadi perubahan distribusi butiran halus menjadi tanah berbutir kasar sesuai banyaknya penambahan Fly Ash. Penambahan fly Ash 20% memberikan peningkatan yang cukup signifikan dengan nilai CBR sebesar 15,7% dibandingkan daya dukung tanah asli yang hanya memiliki nilai CBR 3.4% dan tergolong tanah yang jelek. Fly Ash yang berasal dari PLTU Nagan Raya layak untuk dijadikan bahan stabilisasi tanah dalam pelaksanaan konstruksi khususnya jalan raya yaitu sebagai subbase course

PENGERTIAN INTERFACE MANAGEMENT DALAM ORGANISASI PROYEK KONSTRUKSI

Construction project organization is a very complex system that is involving many parties. To ensure the organization work properly, therefore a good management system is required. This is important to ensure all individual work in a pleasant working environment. The goal of the system is to avoid friction among people in the project site. Interface management (IM) becomes significant in the project organization. IM is a management system developed thus all the stakeholders in a project or every party in a process can work together, can communicate and be responsible to their works during the implementation process of construction. IM is project manager’s job in management project. This paper will discuss IM definition, interfaces problems and IM procedures that should be implemented in order to achieve project success. The result of this discussion is a project will be efficiently generated if the project manager implements IM from the beginning of the project implementation.