Structures are expected to have ductile behavior under major earthquakes. One requirement to achieve this ductile behavior is when the structures have no shear failures in their elements. This paper discusses a new method by using the embedded steel truss in the flexural plastic hinges of beam to avoid shear failure. As already known that the shear strength provided by the concrete will be decreased when the ductility of flexural plastic hinges develop in a member. Therefore, a conservative procedure by ignoring the role of concrete in flexural plastic hinges in resisting the shear demand is adopted by some codes. This will increase the demand for shear reinforcement provided by the stirrup or transverse reinforcement in the plastic hinge; yet it still does not ensure that the shear failure does not come to happen. From the laboratory test results under cyclic loading in this study, it can be noted that the beam with embedded steel truss in the plastic hinge has better hysteretic behavior than the one without the embedded steel truss. The evaluation of test result is also shown the strength of the beam with the embedded steel truss in the plastic hinge is not reduced with an increase in the amplitude of the drift of 1.4 to 3.5. Besides, the strength of the beam without embedded steel truss in the plastic hinge is reduced with an increase in the amplitude of the drift after reaching 2.5.

Palu City is located in an earthquake-prone area. To Construct a building in earthquake-prone areas, many people like to construct buildings far away from the epicenter, we should be able to construct buildings in earthquake-prone areas without any worries about the resilience of the building related to seismic load. In this final project, a 4 (four) storey shophouse will be designed as the Special Moment Resisting Frame method using the SNI-2847-2019 and SNI- 1726-2019 standard. The seismic load was simulated using the response spectrum and the structural element was analyzed by 3D Structural Analysis Programme. The design results meet the dimensions of each structural elements. There were slab thickness 125 mm, column dimensions 600 mm x 600 mm, dimensions of beam 400 mm x 600 mm, the dimensions of the joist 200 mm x 400 mm and tie beam dimension 400 mm x 600 mm with the reinforcement obtained from each structural element meet the requirements of SNI-2487- 2019, Standard of structural concrete for buildings.

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The Palu Earthquake on September 28th, 2018, which was followed by a tsunami and liquefaction, caused massive damage to infrastructure in Palu City and its surroundings, include The Palu III Bridge as an Australian steel truss structure with a span of 2 x 60 m. The need for an evaluation of the post-earthquake bridge structure can be done by Rapid Visual Screening (RVS) method to detect the transverse and longitudinal direction of the bridge, cracks in the concrete structure, failure to steel truss joints, displacement of expansion joints, etc. The degradation of the Palu III Bridge was seen in the expansion joint, massive rust spots in the transverse and longitudinal girders of the bridge, in the area near the east support, the asphalt layer apart, slope of concrete pile foundation and supported rail deflected. The Rapid Visual Screening results of the Palu III Bridge structure can be conclude as follow, the overall condition of the bridge is still in moderate condition, several parts of the bridge should be maintaining and rehabilitating, the bridge pier and abutment area should be cleaned due to a lot of garbage. In general, Palu III Bridge able to function as initial condition.