Buku ini di awali dengan pembahasan mengenai pengertian data meluputi data, statistik, ciri statistik yang berkualitas, pengelompokan statistika dan kegunaan statistika. Dan pada bab statistika bisnis meliputi arti variabel, tipe-tipe variabel, skala pengukuran, sumber data dan skala pengukuran. Pada bab pengolahan dan penyajian data meliputi isue pengolahan data, berbagai bentuk penyajian data, bagaimana membuat tabel distribusi frekuensi dan bagaimana dengan tabel distribusi frekuensi dari variabel diskrit dan kurva ogif (ogive). Pada bab ukuran pemusatan data (central tendency) meliputi pengukuran gejala pusat (central tendency), modus (mode), median, mean dan menghitung modus, median, mean untuk data bergolong. (tersusun dalam tabel distribusi frekuensi). Pada bab 5 kuartil, desil, persentil meluputi kuartil (quartiles), desil (deciles), persentil (percentiles) dan cara menghitung desil untuk data berkelompok. Pada bab angka indeks meluputi arti angka indeks, indeks kuantum sederhana dan pengujian angka indeks. Pada bab ukuran korelasi meluputi apa itu kolerasi, kegunaan kolerasi dan patokan besaran nilai koefien korelasi pearson. Dan pada bab regresi linier sederhana meliputi regresi linier sederhana, memperkirakan persamaan garis lurus dan dampak dari unit satuan variabel
A Reactive powder concrete is one of Ultra High Performance Concrete developed through microstructure repair. This research uses silica fume and steel fibre with w/c = 0.23. The curing temperature variations used in the study were 27°C, 60°C, 90°C, and 120°C. Testing methods slump flow, compressive strength, modulus of elasticity, tensile strength and flexural strength were performed based on ASTM and ACI. This research shows that the compressive strength, modulus of elasticity, tensile strength and flexural strength are directly proportional. The optimum temperature of the study was 90°C. The compressive strength and maximum modulus of elasticity this study were 111.43 MPa and 51,400 MPa at curing temperature of 90°C. Tensile strength and maximum flexural strength in this study were 6.19 MPa and 10.82 MPa at curing temperature of 90°C.
This paper presents diagonal and chevron braced steel structure design with pushover analysis conducted following ATC-40 guidelines. In this study, the lateral load used is increased gradually until plastic hinge and collapse occur. The results are capacity curve, performance point, and the process of plastic hinge until the building collapse. There are five steel structure models designed based on the various types of bracing and bracing configuration. Model 1 is steel structure without bracing, model 2 and 3 are chevron braced steel structure, model 4 and 5 are diagonal braced steel structure. The results of this study indicate that the performance level of five models structure for earthquake in x direction and y direction according to ATC-40 is IO (Immediate Occupancy). Model 4 has the best effectiveness in terms of plastic hinge mechanism compared to other models. In the last step, model 4 is able to reduce plastic hinge 84% from model 1 for earthquake in x direction and 79% from model 1 for earthquake in y direction. Model 3 has the greatest ability to carry the forces of an earthquake compared to other models. It is 185% bigger than model 1 for x direction and 181% bigger than model 1for y direction. Model 3 has the greatest effectiveness in reducing lateral displacements compared to other models in the amount of 65.47% of model 1 for x direction and 72.14% of model 1 for y direction. Model 3 has the greatest effectiveness in reducing storey drift compared to other models in the amount of 73.89% of model 1 for x direction and 80.55% of model 1 for y direction.
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