1,720,956 research outputs found
Analysis of Sika Cim Additive Material Proportion In Beam-Column Joint for Fabricated House
Full text linkThe design compressive strength (f’c) is 21,7 Mpa / K250 and the chemical liquid was used is Sika Cim. Variation of Sika Cim adding that used is 0%; 0,3%; 0,5%; 0,8%; 1%; and 1,2% toward the weight of cement used. The each variation consists of 3 sample with 2 sample that will be at compressive strength tested at the age of 7 days, and 2 sample for compressive strength control that tested at the age of 28 days. From these all variations of Sika Cim adding, the optimum point for connection material can be founded and then it will used to fabricated house panel assembling which analise damage model of the connection. Then calculating the cost that used to make connection with the optimum Sika Cim adding, and then compare it with the cost of normal concrete with same quality. From this study can be founded that level of optimum Sika Cim is 2263,54 ml or 0,52% from the cement which used for 1 m3 volume of the concrete.. Level of Sika can increase 11,8 MPa of compressive strength or 58,38% from the normal concrete without Sika Cim. Sika Cim using at K200 concrete to produce K250 concrete is 1182,219 ml/m3, with 7,48% cost from total cost for each K200 readymix concrete. This Sika Cim adding can economize the cost for about Rp. 51.397,67 for each m3 concrete. The composition of the mixture with the optimum Sika Cim applied to the precast column beam connection material, produces a joint that has a good crack pattern.The design compressive strength (f’c) is 21,7 Mpa / K250 and the chemical liquid was used is Sika Cim. Variation of Sika Cim adding that used is 0%; 0,3%; 0,5%; 0,8%; 1%; and 1,2% toward the weight of cement used. The each variation consists of 3 sample with 2 sample that will be at compressive strength tested at the age of 7 days, and 2 sample for compressive strength control that tested at the age of 28 days. From these all variations of Sika Cim adding, the optimum point for connection material can be founded and then it will used to fabricated house panel assembling which analise damage model of the connection. Then calculating the cost that used to make connection with the optimum Sika Cim adding, and then compare it with the cost of normal concrete with same quality. From this study can be founded that level of optimum Sika Cim is 2263,54 ml or 0,52% from the cement which used for 1 m3 volume of the concrete.. Level of Sika can increase 11,8 MPa of compressive strength or 58,38% from the normal concrete without Sika Cim. Sika Cim using at K200 concrete to produce K250 concrete is 1182,219 ml/m3, with 7,48% cost from total cost for each K200 readymix concrete. This Sika Cim adding can economize the cost for about Rp. 51.397,67 for each m3 concrete. The composition of the mixture with the optimum Sika Cim applied to the precast column beam connection material, produces a joint that has a good crack pattern
Analysis of Sika Cim Additive Material Proportion In Beam-Column Joint for Fabricated House
Full text linkThe design compressive strength (f’c) is 21,7 Mpa / K250 and the chemical liquid was used is Sika Cim. Variation of Sika Cim adding that used is 0%; 0,3%; 0,5%; 0,8%; 1%; and 1,2% toward the weight of cement used. The each variation consists of 3 sample with 2 sample that will be at compressive strength tested at the age of 7 days, and 2 sample for compressive strength control that tested at the age of 28 days. From these all variations of Sika Cim adding, the optimum point for connection material can be founded and then it will used to fabricated house panel assembling which analise damage model of the connection. Then calculating the cost that used to make connection with the optimum Sika Cim adding, and then compare it with the cost of normal concrete with same quality. From this study can be founded that level of optimum Sika Cim is 2263,54 ml or 0,52% from the cement which used for 1 m3 volume of the concrete.. Level of Sika can increase 11,8 MPa of compressive strength or 58,38% from the normal concrete without Sika Cim. Sika Cim using at K200 concrete to produce K250 concrete is 1182,219 ml/m3, with 7,48% cost from total cost for each K200 readymix concrete. This Sika Cim adding can economize the cost for about Rp. 51.397,67 for each m3 concrete. The composition of the mixture with the optimum Sika Cim applied to the precast column beam connection material, produces a joint that has a good crack pattern.The design compressive strength (f’c) is 21,7 Mpa / K250 and the chemical liquid was used is Sika Cim. Variation of Sika Cim adding that used is 0%; 0,3%; 0,5%; 0,8%; 1%; and 1,2% toward the weight of cement used. The each variation consists of 3 sample with 2 sample that will be at compressive strength tested at the age of 7 days, and 2 sample for compressive strength control that tested at the age of 28 days. From these all variations of Sika Cim adding, the optimum point for connection material can be founded and then it will used to fabricated house panel assembling which analise damage model of the connection. Then calculating the cost that used to make connection with the optimum Sika Cim adding, and then compare it with the cost of normal concrete with same quality. From this study can be founded that level of optimum Sika Cim is 2263,54 ml or 0,52% from the cement which used for 1 m3 volume of the concrete.. Level of Sika can increase 11,8 MPa of compressive strength or 58,38% from the normal concrete without Sika Cim. Sika Cim using at K200 concrete to produce K250 concrete is 1182,219 ml/m3, with 7,48% cost from total cost for each K200 readymix concrete. This Sika Cim adding can economize the cost for about Rp. 51.397,67 for each m3 concrete. The composition of the mixture with the optimum Sika Cim applied to the precast column beam connection material, produces a joint that has a good crack pattern
Evaluation Of Building Vulnerability With Microtremor Data (Case Study Of FTI UII Lecture Building): Indonesia
No full textBeragamnya fungsi penggunaan bangunan saat ini memerlukan perancangan yang dapat meminimalisir potensi kerusakan, terutama yang disebabkan oleh bencana alam. Gempa bumi merupakan salah satu bencana alam yang menjadi ancaman utama terhadap kerusakan bangunan. Sebagai contoh, peristiwa gempa bumi yang terjadi di Yogyakarta pada tahun 2023 menimbulkan kerusakan pada berbagai fasilitas bangunan. Penelitian ini bertujuan untuk mengidentifikasi tingkat kerentanan bangunan dengan menggunakan data mikrotremor untuk memperoleh nilai frekuensi natural bangunan (fb), indeks resonansi bangunan (R), dan indeks kerentanan bangunan (Kb). Penelitian dilakukan pada gedung perkuliahan FTI UII dengan menggunakan alat Lunitek Digital Seismic Sensor untuk merekam getaran mikrotremor. Metode Floor Spectral Ratio (FSR) diterapkan untuk menganalisis mikrotremor pada bangunan, sementara metode Horizontal to Vertical Spectral Ratio (HVSR) digunakan untuk menganalisis mikrotremor pada tanah. Hasil penelitian menunjukkan bahwa kerentanan bangunan berdasarkan nilai frekuensi natural bangunan teridentifikasi aman, sedangkan nilai indeks resonansi bangunan menunjukkan tingkat kerentanannya yang tinggi. Selain itu, nilai indeks kerentanan bangunan juga menunjukkan kondisi yang aman. Selisih terbesar antara perbandingan frekuensi data mikrotremor dan SAP2000 ditemukan pada blok C sebesar 0,401 Hz dan pada blok D sebesar 0,616 Hz.Beragamnya fungsi penggunaan bangunan saat ini, diperlukanlah perancangan yang dapat meminimalisir bangunan dari potensi kerusakan, terlebih dari potensi bencana alam. Bencana gempa bumi merupakan salah satu bencana alam yang menjadi ancaman terjadinya kerusakan pada bangunan. Salah satu contohnya adalah peristiwa gempa bumi yang terasa di daerah Yogyakarta pada tahun 2023 yang menimbulkan kerusakan berbagai fasilitas bangunan yang ada. Dilakukanlah penelitian untuk mengidentifikasi seberapa besar tingkat kerentanan bangunan berdasarkan data mikrotremor untuk mendapatkan nilai frekuensi natural bangunan (fb), nilai indeks resonansi bangunan (R) dan nilai indeks kerentanan bangunan (Kb). Penelitian dilakukan pada gedung perkuliahan FTI UII. Alat lunitek digital seismic sensor merupakan alat yang digunakan dalam penelitian ini untuk merekam getaran mikrotremor. Metode Floor Spectral Ratio (FSR) digunakan dalam pengolahan mikrotremor pada gedung dan metode Horizantal to Vertical Spectral Ratio (HVSR) digunakan dalam pengolahan mikrotremor pada tanah. Didapatkanlah hasil dari penelitian ini yaitu kerentanan bangunan berdasarkan nilai frekuensi bangunan aman, berdasarkan nilai indeks resonansi bangunan tinggi dan berdasarkan nilai indeks kerentanan bangunan aman. Dan selisih terbesar perbandingan frekuesi antara data mikrotremor dan SAP2000 terdapat pada blok C sebesar 0,401 Hz dan blok D sebesar 0,616 Hz
Evaluation Of Building Vulnerability With Microtremor Data (Case Study Of FTI UII Lecture Building): Indonesia
No full textBeragamnya fungsi penggunaan bangunan saat ini memerlukan perancangan yang dapat meminimalisir potensi kerusakan, terutama yang disebabkan oleh bencana alam. Gempa bumi merupakan salah satu bencana alam yang menjadi ancaman utama terhadap kerusakan bangunan. Sebagai contoh, peristiwa gempa bumi yang terjadi di Yogyakarta pada tahun 2023 menimbulkan kerusakan pada berbagai fasilitas bangunan. Penelitian ini bertujuan untuk mengidentifikasi tingkat kerentanan bangunan dengan menggunakan data mikrotremor untuk memperoleh nilai frekuensi natural bangunan (fb), indeks resonansi bangunan (R), dan indeks kerentanan bangunan (Kb). Penelitian dilakukan pada gedung perkuliahan FTI UII dengan menggunakan alat Lunitek Digital Seismic Sensor untuk merekam getaran mikrotremor. Metode Floor Spectral Ratio (FSR) diterapkan untuk menganalisis mikrotremor pada bangunan, sementara metode Horizontal to Vertical Spectral Ratio (HVSR) digunakan untuk menganalisis mikrotremor pada tanah. Hasil penelitian menunjukkan bahwa kerentanan bangunan berdasarkan nilai frekuensi natural bangunan teridentifikasi aman, sedangkan nilai indeks resonansi bangunan menunjukkan tingkat kerentanannya yang tinggi. Selain itu, nilai indeks kerentanan bangunan juga menunjukkan kondisi yang aman. Selisih terbesar antara perbandingan frekuensi data mikrotremor dan SAP2000 ditemukan pada blok C sebesar 0,401 Hz dan pada blok D sebesar 0,616 Hz.Beragamnya fungsi penggunaan bangunan saat ini, diperlukanlah perancangan yang dapat meminimalisir bangunan dari potensi kerusakan, terlebih dari potensi bencana alam. Bencana gempa bumi merupakan salah satu bencana alam yang menjadi ancaman terjadinya kerusakan pada bangunan. Salah satu contohnya adalah peristiwa gempa bumi yang terasa di daerah Yogyakarta pada tahun 2023 yang menimbulkan kerusakan berbagai fasilitas bangunan yang ada. Dilakukanlah penelitian untuk mengidentifikasi seberapa besar tingkat kerentanan bangunan berdasarkan data mikrotremor untuk mendapatkan nilai frekuensi natural bangunan (fb), nilai indeks resonansi bangunan (R) dan nilai indeks kerentanan bangunan (Kb). Penelitian dilakukan pada gedung perkuliahan FTI UII. Alat lunitek digital seismic sensor merupakan alat yang digunakan dalam penelitian ini untuk merekam getaran mikrotremor. Metode Floor Spectral Ratio (FSR) digunakan dalam pengolahan mikrotremor pada gedung dan metode Horizantal to Vertical Spectral Ratio (HVSR) digunakan dalam pengolahan mikrotremor pada tanah. Didapatkanlah hasil dari penelitian ini yaitu kerentanan bangunan berdasarkan nilai frekuensi bangunan aman, berdasarkan nilai indeks resonansi bangunan tinggi dan berdasarkan nilai indeks kerentanan bangunan aman. Dan selisih terbesar perbandingan frekuesi antara data mikrotremor dan SAP2000 terdapat pada blok C sebesar 0,401 Hz dan blok D sebesar 0,616 Hz
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
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