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Journal : Nusantara Civil Engineering Journal

Behavior Analysis of Deformation Changes After Sagging on The Telaga Abadi Suspension Bridge Efendi, Aco Wahyudi
Nusantara Civil Engineering Journal Vol 1 No 2 (2022): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (877.193 KB) | DOI: 10.32487/nuce.v1i1.389

Abstract

The occurrence of changes in the location and height of the tide at the time of execution that exceed the planning conditions and disrupt the flow of municipal shipping. For this reason, the suspension bridge chamber was upgraded in order to create a traffic-free area opposite the free threshold. The results of the manual analysis taking into account the labor force due to the bridge steps, so that the real value of the bridge chamber is obtained to obtain the ideal deformation of the bridge working load. The ability of the bridge state to change the deformation results from this evaluation. The behavior of the four conditions was significantly different, namely the SDL forward state, in which the horizontal force that occurred in this state increased, but the deflection decreased by up to 200%, whereby in the f0 forward state was 0.16 meters , but in the SDL forward state the horizontal force only increased with a deflection of 0.05 meters. However, the overall result is that the stress states that occur are still below the limit or permissible conditions, based on the stress-strain curve of the cable material, the stress under operating conditions is still in the elastic range of the material.
The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA Aco Wahyudi Efendi
Nusantara Civil Engineering Journal Vol 2 No 2 (2023): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v2i02.484

Abstract

The IKN area, especially in the dock and stockyard construction area, is in an area with soft surface soil and requires several options for handling the stockyard area with several materials that are being widely used and easy methods and provide economic value in development. The use of geoform can increase the CBR value of native soil and the use of geofoam as embankment material provides a higher safety factor value with a smaller deformation value besides that the foam mortar material contributes to a small decrease and stress on the surface of the native soil. This study provides a behavioral review of the vertical settlement and stresses that occur in the soil and gives special behavior to the Geofoam material in the presence of hydrostatic forces. The largest settlement that occurred was 0.0961 m on the surface of the foam mortar, while on the existing soil surface a settlement of 0.0288 m occurred, while the largest settlement that occurred was 0.04254 m on the surface of the geofoam, while on the existing soil surface a settlement of 0.0277 m occurred.