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ANALYSIS OF CONTROL BEHAVIOUR OF ARCH ON THROUGH ARCH BRIDGE CONSTRUCTION Wijaya, Krisna Putra; Dang, Thanh Trung; Yujana, Cokorda Agung; Aditama, I Putu Deny Surastika; Sanjaya, I Gede Dhana Putra
Journal of Infrastructure Planning and Engineering 35-40
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.3.2.2024.35-40

Abstract

Bridges are structures that need to be well-planned to function optimally. Bridges come in various shapes and sizes, one of them is an arch bridge. Through this thesis preparation the author tried to plan the upper structure of a bridge with an arch type on Tukad Ayung Bridge. The initial planning data includes a length of the existing bridge of 64 m and a width of 15 m. The planning method using LRFD and SAP2000 for the software. The arch rib dimensions in the planning of the through arch steel bridge on Tukad Ayung is 900.600.30.40 box profile with a cross-sectional height. It is using steel material of special type of structural steel for bridges with ASTM A 709 grade 50 specifications. From the analysis result, the stress melting point is fy= 345 MPa and the modulus of elasticity steel is E= 200000 MPa. The cross-sectional height is 900 mm, cross-sectional width is 600 mm, the body thickness (tw) is 30 mm and the wing thickness (tf) is 40 mm.
FEASIBILITY STUDY AND FLOOR ADDITIONAL PLAN WITH CONCRETE JACKETING STRENGTHENING METHOD Antara, I Putu Nida Verdi; Sinarta, I Nengah; Pratiwi, Ni Made Widya; Sarassantika, I Putu Ellsa; Sanjaya, I Gede Dhana Putra
Journal of Infrastructure Planning and Engineering 50-56
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.3.2.2024.50-56

Abstract

Concrete Jacketing is a method of strengthening reinforced concrete structures that is applied to buildings to increase and improve their strength capacity. Concrete Jacketing is carried out by enlarging the existing reinforced concrete cross section with an additional layer of concrete which is also reinforced with reinforcement. The structure of the Taruna Warmadewa Vocational School building is planned to be given additional floors, from 2 floors to 3 floors. Prior to adding the floor, a feasibility study was carried out for testing the existing material, to determine the quality of the material to be used in the analysis. Based on the results of material testing of the existing structure, the structure of SMK Taruna Warmadewa needs to be strengthened. Therefore, concrete jacketing was chosen as an effective reinforcement method to increase the capacity of the structure to carry loads due to the addition of floors. The method of collecting data in carrying out a feasibility study and planning for additional floors in the Taruna Warmadewa Vocational School is the method of literature study, direct observation, material testing and modeling analysis. The analysis determined that concrete jacketing was required for all columns and two types of beams. Specifically, column dimensions were increased from 30 cm × 50 cm to 50 cm × 70 cm (K1), primary beams from 30 cm × 45 cm to 35 cm × 55 cm (B1), and secondary beams from 20 cm × 30 cm to 30 cm × 45 cm (B2). The pile cap foundation thickness was increased from 30 cm to 70 cm, with plan dimensions of 2 m × 2 m. For the new third floor, the design specifies columns of 45 cm × 45 cm (K1) and three beam types: 30 cm × 50 cm (B1), 25 cm × 40 cm (B2), and 20 cm × 30 cm (B3).