Judul: Analisis Struktur Pilar dan Pondasi Jembatan pada Proyek Jalan Tol Cimanggis-Cibitung
Abstrak: In order to distribute the superstructure’s load, substructure should be designed in such a way as to observe the condition of the landscape, soil bearing capacity, type and dimensions of substructural components, selection of materials and construction methods, as well as considering the environmental conditions in which the structure is built . This study aims to determine the flood water level of Cikeas River and plan the structure of the bridge foundation and pier on Cimanggis- Cibitung’s Tollway Projects. Pier’s structure which to be reviewed is P40 pier which has 17.8 m height and is located on the Cikeas River flow. Flood water level return 50 years period of Cikeas River is 2.4 m. Based on the analysis of soil carrying capacity, the selected soil bearing capacity using data of NSPT is 5210.541 kN with a kind of bored pile foundation, depth of 22 m, and a diameter of 1.2 m. The foundation is planned amount to 30 pieces (5 x 6 pieces) with an efficiency is 0.668. The foundation plan has met the safety criteria of the category axial load, lateral load, and the risk of structure settlement. Pier is designed “Y” shaped which has size 4x4 m. Pier is design with bending and shear steel but do not require torque steel.
Keyword: soil bearing capacity, bridge foundations, flood water level

Judul: Analisis Struktur Pondasi dan Jembatan pada Proyek Jalan Tol Cimanggis-Cibitung
Abstrak: Bridge is one of the most important parts of a highway. A Failure of bridge structures, especially the bottom as abutments, piers and foundations would be fatal to the bridge structure. Cimanggis-Cibitung Highway have length 25,785 km. One of the bridges that were analyzed in this study passing through Transyogi’s Road and the Cikeas river so advance planning is required in the form of a bridge as a condition for determining the height of the vertical free space on roads and bridges that crossed the river. The first step is determining Cikeas river flood discharge and water level flood return period of 50 years. Cikeas river flood discharge is 344,643 m3/s and flood water level of 2,4 m. Terms of vertical free space for a bridge across the river and over the exsisting path is 1 m and 5.1 m. The second step of determining the carrying capacity of the land of the results of SPT Test, Sondir Test and Test of Laboratories. Based on the test selected third Test returns to the carrying value of the land at the point of DB-28 was 2506,64 kN at a depth of 18 m. Based on the carrying value of the type of foundation used is pile foundation with a diameter of 80 cm, depth of 18 m, and concrete quality of K-350 so the amount of the foundation is 16 foundations in a group.
Keyword: Cikeas river, Bridge, Soil bearing capacity

Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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