SAUNG BAMBU KOMPOSIT DENGAN SAMBUNGAN PELAT BUHUL

2021 ◽  
pp. 81
Author(s):  
Widodo Kushartomo ◽  
Henny Wiyanto ◽  
Dewi Linggasari ◽  
Arianti Sutandi

Bamboo can be used to make all building components, both structural and non-structural. The construction of this bamboo building is characterized by a structural framework approach similar to that applied in wooden construction. In this case, the floor, wall and roof elements are interconnected and interdependent on each other for overall stability. There is a need to control lateral deformation in some traditional forms of buildings in particular. The adequacy and suitability of the building for housing will also depend on good details. In the use of bamboo as a structural element, various types of connections are known which are often applied in various types of buildings. The types of connections are double butt bent joints, friction-tight rope connections, plug ins, positive fitting connections, and interlocking connections. These types of joints are not very strong and cannot withstand excessive loads in various directions because the surface area of the connection is very small and bamboo has cavities. This connection will not last long if it is used as a connection to the truss or bridge truss. This connection is not very strong. In the Cipete Village area, Pinang District, Tangerang City, there are still many buildings that use bamboo as a structural element, both for housing, selling places, and huts for resting. The bamboo connections in these buildings still use traditional grafting techniques, so the buildings quickly become damaged and the community pays more to repair them. The Community Service Team (PKM) of the Civil Engineering Undergraduate Study Program helps the community provide bamboo splicing technology to increase the service life of bamboo buildings by improving bamboo grafting techniques. The splicing technique is done by expanding the surface of the connection, namely making the bamboo solid in the bamboo area. In addition to making the bamboo solid in the joint area, gusset plates and bolts are also used to strengthen the connection. Bambu dapat digunakan untuk membuat semua komponen bangunan, baik struktural maupun non struktural. Konstruksi bangunan bambu ini ditandai dengan pendekatan kerangka struktural mirip dengan yang diterapkan dalam konstruksi kayu. Dalam hal ini, elemen lantai, dinding dan atap saling dihubungkan dan saling bergantung satu sama lain untuk stabilitas keseluruhan. Ada kebutuhan untuk mengontrol deformasi lateral dalam beberapa bentuk tradisional bangunan pada khususnya. Kecukupan dan kesesuaian bangunan untuk hunian juga akan tergantung pada detail yang baik. Dalam pemanfaatn bambu sebagai elemen struktur, dikenal berbagai jenis sambungan yang sering diaplikasikan dalam berbagai jenis bangunan. Jenis-jenis sambungan tersebut adalah double butt bent joint, friction-tight rope connection, plug in, positive fitting connections, dan interlocking connection. Jenis-jenis sambungan tersebut tidak terlalu kuat tidak mampu menahan beban yang berlebih dalam berbagai arah meningat karena luas permukaan sambungan sangat kecil dan bambu memiliki ronga. Sambungan ini tidak akan bertahan lama bila digunakan sebagai sambungan pada rangka kuda-kuda atau rangka jembatan Sambungan seperti ini tidak terlalu kuat. Didaerah Kelurahan Cipete, Kecamatan Pinang Kota Tangerang, masih banyak bangunan yang memanfaatkan bambu sebagai elemen struktur, baik untuk perumahan, tempat berjualan, maupun saung-saung tempat istirahat. Sambungan bambu pada bangunan-bangunan tersebut masih menggunakan Teknik penyambungan tradisional, sehingga bangunan tersebut cepat menjadi rusak dan masyarakat mengeluarkan biaya lebih untuk memperbaikinya. Tim Pengabdian Kepada Masyarakaya (PKM) Program Studi Sarjana Teknik Sipil membantu masyarakat memberikan teknologi penyambungan bambu untuk meningkatkan umur layanan bangunan bambu dengan memperbaiki teknik penyambungan bambu.  Teknik penyambungan dilakukan dengan memperluas permukaan sambungan yaitu membuat bambu menjadi solid didaerah bambungan. Selain membuat bambu menjadi solid didaerah sambungan, juga digunakan pelat buhul dan baut untuk memperkaku sambungan.

2021 ◽  
Vol 11 (6) ◽  
pp. 2568
Author(s):  
Benjamin Kromoser ◽  
Matthias Braun ◽  
Maximilian Ortner

Timber truss systems are very efficient load-bearing structures. They allow for great freedom in design and are characterised by high material use in combination with a low environmental impact. Unfortunately, the extensive effort in design and production have made the manufacturing and application of these structures, in this day and age, a rarity. In addition, the currently mainly used steel gusset plates adversely affect the costs and environmental impact of the trusses. The authors’ goals are to optimise the design of timber trusses and to solely use wood for all building components. The two research areas, (1) optimisation of the truss geometry and (2) optimisation of the joints by using solely wood–wood connections, are addressed in this paper. The numerical optimisation strategy is based on a parametric design of the truss and the use of a genetic solver for the optimisation regarding minimal material consumption. Furthermore, first results of the tensile and compression behaviour of the chosen wood–wood connections are presented. The basic idea for the joints is to use a plywood plate as a connector, which is inserted into the truss members and fixed with wooden pegs. The housing of the new robot laboratory located at BOKU Vienna is considered a special case study for the research and serves as an accompanying example for the application of the research within the present paper.


2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
William Luiz Fernandes ◽  
Daniel Boy Vasconcellos ◽  
Marcelo Greco

Structural engineering demands increasingly lighter systems, which can cause instability problems and compromise performance. A high slenderness index of a structural element makes it susceptible to instability. It is important to understand the problem, the limits of stability, and its postcritical behavior. An example that can occur in collapsed arches under a cross load is the dynamic snap-through behavior, where the structure in a given equilibrium condition jumps to a new remote equilibrium setting, causing usually sudden curvature. The semirigid connections are a source of physical nonlinearity and can influence the overall stability of the structural system, in addition to the distribution of stresses in the same system. Conventional approaches make use of static considerations. However, instability problems are inherently evolutionary processes, so a transient analysis is necessary for a complete description of structural behavior. The present work evaluates the geometrically nonlinear dynamic behavior of collapsed arches subjected to transverse force and plane frames with semirigid connections. The time domain responses, via Newmark's Method and positional formulation of the Finite Element Method, were obtained in terms of displacements, velocities, acceleration, and phase diagrams.


2021 ◽  
Vol 6 (12) ◽  
pp. 2193-2199
Author(s):  
Artika Arista ◽  
Muhammad Eka Purbaya ◽  
Khairun Nisa Meiah Ngafidin

In facing the industrial era 4.0, college graduates in information and computer science are required to adapt to the developments and needs of current industrial technology. The link and match between the world of education and industry is the key to optimizing the absorption of skilled labor. To answer these challenges, the Information systems undergraduate study program at Institut Teknologi Telkom Purwokerto, SUHU, and T-Lab held a Webinar Series "Link & Match of Information Technology between Academics and Industrial Needs" with the topic of Digital Business Roadmap: Exploring creative digital business ideas. This webinar activity is carried out using a mentoring method as well as sharing new knowledge with participants about Digital Business Transformation and how to explore creative digital business ideas. The result is that participants can understand digital business transformation and then explore creative digital business ideas to be developed in a business proposal.


Edukid ◽  
2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Rizka Haristi ◽  
Ocih Setiasih ◽  
Aan Listiana

Abstrac : The Interest of Twelfth Grade Senior High School Students in Sukasari District Bandung City in the Undergraduate Study Program of PGPAUD FIP UPI.The research is prompted by the phenomenon of the low number of students interested in the Study Program of PGPAUD, more specifically the study program of PGPAUD FIP UPI. The low interest is contradictory to the greatly increasing demands for early childhood education teachers in the field. Therefore, the research aims to find the profile of data on the interest of twelfth grade senior high school students in Sukasari District, Bandung City, in the undergraduate study program of PGPAUD FIP UPI, as examined from school status, gender, and specialization. The method employed was cross sectional survey. The population of this research was as many as 681 twelfth grade senior high school students from all over Sukasari District for the school year of 2014-2015, and with disproportional stratified sampling, 246 students were taken as the sample. The data were collected by means of close-ended questionnaires that were then analyzed using descriptive statistic. The results show that 6.50% of the students in the District were interested in the Study Program of PGPAUD FIP UPI. In terms of school status, the percentages for private and state senior high school students interested in this study program were 7.77% and 5.60%, respectively. As regards gender, the percentages of female and male students interested in this study program were 8.87% and 4.92%, respectively. With regard to specialization in senior high school, the percentages of social sciences and natural sciences students interested in the study program were 46% and 5.17%, respectively. There are possibly three key aspects affecting this phenomenon, among others are students’ perception of guaranteed future career for PGPAUD graduates, the influence of urban life on students, and the lack of contribution from the Study Program of PGPAUD FIP UPI to senior high school students. The research recommends that the government make appropriate policies concerning certainty of employment for early childhood education teachers and the study program of PGPAUD FIP UPI carry out promotional and extension programs.Abstrak : Minat Siswa SMA Kelas XII Kecamatan Sukasari Kota Bandung terhadap Program Studi S1 PGPAUD FIP UPI. Penelitian ini dilakukan berdasarkan fenomena rendahnya jumlah peminat Program Studi PGPAUD, khususnya Program Studi PGPAUD FIP UPI. Kondisi tersebut bertolak belakang dengan kebutuhan guru PAUD di lapangan yang semakin besar. Oleh karena itu, penelitian ini bertujuan untuk memperoleh data profil minat siswa SMA Kelas XII Kecamatan Sukasari Kota Bandung terhadap program Studi S1 PGPAUD FIP UPI yang juga ditelaah berdasarkan status sekolah, jenis kelamin, dan jurusan di SMA. Metode yang digunakan adalah  survei cross sectional. Populasi penelitian ini merupakan seluruh siswa SMA Kelas XII se-Kecamatan Sukasari tahun ajaran 2014-2015 yang berjumlah 681, sedangkan sampel berjumlah 246 siswa dengan teknik disproportional stratified sampling. Alat pengumpulan data penelitian ini menggunakan angket tertutup yang kemudian dianalisis dengan statistika deskriptif. Hasil penelitian menunjukkan bahwa 6,50% siswa di kecamatan tersebut yang berminat terhadap program studi PGPAUD FIP UPI. Dilihat berdasarkan status sekolah, siswa SMA Swasta yang berminat terhadap program studi ini sebesar 7,77% dan SMA Negeri 5,60%. Dilihat berdasarkan jenis kelamin, 8,87% siswa perempuan berminat terhadap program studi ini sedangkan laki-laki sebesar 4,92%. Dilihat berdasarkan jurusan di SMA, siswa IPS memperoleh persentase minat sebesar 8,46% dan IPA 5,17%. Tiga faktor utama yang mungkin mempengaruhi kondisi tersebut diantaranya: persepsi siswa terhadap keterjaminan karier lulusan PGPAUD, pengaruh lingkungan siswa yang berada di wilayah perkotaan, dan kurangnya kontribusi Prodi PGPAUD FIP UPI di kalangan siswa SMA. Rekomendasi penelitian ini agar pemerintah membuat kebijakan yang tepat mengenai keterjaminan profesi guru PAUD dan bagi Prodi PGPAUD FIP UPI agar melaksanakan promosi dan sosialisasi.


Author(s):  
Marniati Marniati

This study aimed to measure the implementation of the practice in the women’s clothing course in terms of the skill variable making construction/flat clothing patterns, applying the grading pattern and making women’s clothing. This study used a quantitative approach. The research subjects were all students who programmed the women’s clothing course. 43 students of the UNESA Fashion Design Education undergraduate study program. Data analysis used 2x4 factorial ANOVA followed by a comparison of the mean using SPSS software. The honest real difference test (Tukey test) was used to test the difference between the two data at the 5% significance level. Observations were made on two things, namely the length of time for making patterns and clothes, on industrial and custom-made clothing. Industrial clothing consists of one-pieces, blouses/tunics, skirts, and pants, while costume-made clothing consists of deuce pieces, long dresses, short dresses, and modern kebaya. The method of making patterns reads into two ways, namely flat and grading. The results showed that the grading method can speed up the time for making industrial and custom-made clothing patterns. The manufacture of one-piece industry clothing takes longer than others. Meanwhile, the long costume-made dress takes longer than the others


2022 ◽  
Vol 11 (1) ◽  
pp. e34711125242
Author(s):  
I Nyoman Wahyu Erlangga Mahaendrayasa ◽  
Cokorda Agung Wahyu Purnamasidhi ◽  
I Gde Haryo Ganesha

In Indonesia, thesis is a scientific paper written by prospective undergraduates as a requirement to obtain a bachelor's degree in an undergraduate study program which of course in the process often experiences anxiety which will affect the performance of students on campus, especially students of the Faculty of Medicine. This study aims to determine the level of anxiety in the implementation of student essay at the Faculty of Medicine, Udayana University. This research is a descriptive research with survey method. The number of samples is 170 respondents and sampling method using random sampling technique. The results of the study showed the prevalence of anxiety levels in students of the Faculty of Medicine, Udayana University class 2017 in the mild category as many as 135 people (79.4%), the moderate category as many as 31 people (18.2%) and the high category as many as 4 people (2.4%). For each study program, the level of anxiety experienced is relatively the same, the highest category in the mild category, then followed by the moderate category and the last with the smallest number, namely the high category.  


PROMUSIKA ◽  
2013 ◽  
pp. 25
Author(s):  
Royke B. Koapaha

This article is worked to support the undergraduate study program revitalization of Music Department, The Facuty of Performing Arts, ISI Yogyakarta, especially in developing creative industry weight through composition training into the Pop-Jazz subjects package, wich is one among the five elective sub competency packages provide by the curriculum. Basically, the author offers composition subject material that is estimated beneficial in developing creative industry in Pop-Jazz program of the Department Keywords: Creative industry, composition, pop-jazz


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