| dc.description.abstract | The strength of the anchor block structure on a suspension bridge is highly
dependent on its weight to be able to carry the tensile load of the backstay cables.
Therefore it is necessary to have dimensions designed in such a way that it has a
greater capacity than the tensile force of the backstay cable. The existing
dimensions used in the anchor blocks in this study already have very large
dimensions. Concrete has good compressive strength but lacks good tensile
strength, the tensile strength of concrete is only about 10% of its compressive
strength. Therefore, in planning the anchor block, it is necessary to have a steel
anchor block made of steel that has a high enough tensile stress and is embedded
in the anchor concrete block to withstand the tensile force before the tensile stress
is transferred to the concrete block. In this paper, profile steel H 300.300.10.15 is
used as steel anchors embedded in concrete blocks. The purpose of this research is
to obtain the stress values that occur in the anchor blocks using the Ansys program,
obtain optimal reinforcement spacing in the maximum tension area (critical area),
and evaluate the stress distribution of the anchor block structures from the results
of the Ansys program running visually. This research was carried out with a
numerical study using the SAP 2000 program to calculate the internal forces on the
entire suspension bridge structure, then using the Ansys analysis program to obtain
the tensile stress that occurs in the anchor blocks that have been modeled on Ansys
with boundary conditions that are close to the conditions is on the field. Ansys
analysis results show that the maximum tensile stress occurs in steel profile H
300.300.10.15 of 80,582 MPa and the maximum tensile stress in concrete is 0,41
MPa. The value of 0,41 MPa is still within safe limits because this tensile stress is
still below the concrete's allowable tensile stress of 2.23 MPa. From the results of
empirical analysis, it is obtained that the maximum distance of reinforcement in
critical areas is 300 mm, and in non-critical areas is 350 mm. | en_US |
