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ANALISIS KEHILANGAN GAYA PRATEGANG AKIBAT BEBAN BERLEBIH (OVERLOADING) KENDARAAN PADA STRUKTUR PERKERASAN RIGID PRATEGANG: (STUDI KASUS : RUAS JALAN MARGOMULYO, SURABAYA)
No full textThe development of road pavement structures is indispensable in building advanced Indonesian infrastructure, one of which is the implementation of the Precast Pre-Stressed Concrete Pavement (PPCP) System. In 2018 on Jalan Margomulyo, Surabaya has applied PT. Waskita Beton Precast Tbk. known as SPRigWP. However, traffic characteristics in Indonesia often experience overloading. By assuming overloading loads of 5%, 10%, and 15% from the LHR survey data, the number of prestressed and deflection force losses is known. In this study, the westergaard method is used in analyzing the amount of voltage that occurs as a result of traffic load. Based on data from the Surabaya City Government Transportation Office, the Margomulyo Road section has experienced an increase in vehicles of 6.17% per year so that it can be estimated that the number of vehicles with a planned age in 2038 is 50,882 vehicles Meanwhile, the results of the traffic survey for 7x15 hours recorded the highest LHR of 2263.133 kend/hour. The result of this study is that the traffic load of the survey results is 486,477 kN with an increase in load of 5%, 10% and 15% is 511,361.1 kN; 535,616 kN; and 559,938.2 kN. The value of prestressed force loss due to traffic load meets the maximum limit of 20% and the deflection value meets the maximum deflection requirement of 50 mm.
Keywords: Loss of Prestressed Force, Flex, Prestressed Concrete, Westergaad Method, PPCP
Perkembangan Struktur Perkerasan jalan sangat diperlukan dalam membangun infrastruktur Indonesia yang maju, salah satunya dengan penerapan Sistem Precast Pre-Stressed Concrete Pavement (PPCP). Pada tahun 2018 di Jalan Margomulyo, Surabaya telah mengaplikasikan produk stuktur perkerasan rigid pratekan milik PT. Waskita Beton Precast Tbk. yang dikenal dengan SPRigWP. Namun karakteristik lalu lintas di Indonesia seringkali mengalami beban berlebihan (overloading). Dengan mengasumsikan beban overloading sebesar 5%, 10%, dan 15% dari data survei LHR maka diketahui jumlah kehilangan gaya prategang dan lendutan. Pada penelitian ini menggunakan metode westergaard dalam mengalisis besaran tegangan yang terjadi akibat dari beban lalu lintas. Berdasarkan Data Dinas Perhubungan Pemerintah Kota Surabaya, pada ruas Jalan Margomulyo mengalami kenaikan kendaraan sebesar 6,17% per tahun sehingga dapat diperkirakan jumlah kendaraan umur rencana pada tahun 2038 sebesar 50.882 kendaraan Sedangkan hasil survei lalu lintas selama 7x15 jam tercatat LHR tertinggi adalah 2263,133 kend/jam. Hasil penelitian ini adalah beban lalu lintas hasil survei sebesar 486.477 kN dengan pertambahan beban 5%, 10% dan 15% adalah 511.361,1 kN; 535.616 kN; dan 559.938,2 kN. Nilai kehilangan gaya prategang akibat beban lalu lintas memenuhi memenuhi batas maksimal sebesar 20% dan nilai lendutan memenuhi syarat lendutan maksimal sebesar 50 mm.
Kata kunci: Kehilangan Gaya Prategang, Lendutan, Beton Prategang, Metode Westergaad, PPC
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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