#TITLE_ALTERNATIVE#

• Main Author: HARUN PURNOMO ( NIM : 15010019 ), FAISAL
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22049
• Institution: Institut Teknologi Bandung

Until now, the reinforced concrete structure is one of many types of structures used in Indonesia. This structure is in accordance with the needs of the Indonesian people in which the structure is needed financially cheap and easy in application. Considering that Indonesia is located in an earthquake area, the reinforced concrete structure must be designed to be resistant to earthquakes. One of the components that are used as components in a seismic anchoring of reinforced concrete structures is shear wall. Shear wall is a reinforced concrete structure with walls form that has a major role as a component of anchoring the shear force due to earthquake loads. Until now, shear wall that used in the building structure is full shear wall that the shear wall mounted / built starting from the base of the building to the roof. By looking at some of the characteristics of full shear wall, especially deformation patterns and shear force diagrams, then comes an idea or hypothesis estimates that the shear wall will be effective if used up to a height of 70% from the total height of the building. The value of 70% based on the point where the intersection occurs at the shear force diagram from the full shear wall. From the hypothesis, also stated that the top 30% of the full shear wall would be a burden and contribute less to resist shear Forces. Starting from the hypothesis, it is necessary to do an analysis of the effective height of shear wall. Is it true or not that the point of effective shear wall is located at a height of 70%. Having obtained the effective point (point of intersection of the shear force diagram), then the next stage is to model the structure to make cutting shear wall that refer to the effective point. Shear wall structure with truncated condition is referred to discontinuous shear wall. After modeling the structure with discontinuous shear wall, the next stage is to compare the performace analysis and structural response from the structure that use full shear wall and structure that use discontinuous shear wall as earthquake resistant structures. But with the reduction /cutting shear wall, one of the negative impact is the emergence stepping shear force and moment at the area where the shear wall to be cut. Therefore, it is also necessary to analize the stepping shear Forces and moment for the structure with discontinuous shear wall. The method of analysis that will be used include the equivalent lateral force analysis, response spectrum analysis, analysis of static push-over, and analysis of non-linear time history. For the modeling of the structure, made of three structure model of varying shear wall height parameter which refers to the results of the analysis point of effective shear wall. From the analyzes that conducted on the structure of the model, will be compared to the main parameters which include the value of the fundamental period, seismic design factors (R, &#937;, Cd), displacment, interstory drift, base raection, and the condition of plastic hinge. <br /> <br /> <br /> <br /> <br /> From the analysis that carried out by the method, showed that: (1) The point of effective shear wall occurs at a height of 90% of the total height, not 70% of the total height, as described in the hypothesis. (2) Based on these values, the model structure that planed are building structure with 100% shear wall, the building structure with 90% shear wall, and the building structure with 80% shear wall. (3) The period of the fundamental structure with discontinuous shear wall tend to have a smaller period. (4) Seismic design factor (R, &#937;, Cd) that obtained from push-over analysis showed that the increased values for structure with full shear wall. (5) Interstory drift and displacement for structure with discontinuous shear wall tend to have a smaller value than the structure that using full shear wall. (6) Due to limited seismic data are used, it is difficult to ascertain the tendency of base reaction. However, if viewed from the majority data, structure with discontinuous shear wall tend to have values smaller base reaction than structure that using full shear wall. (7) The condition of plastic hinge both on the Push Over analysis and non-linear time history analysis shows that the structure with discontinuous shear wall has a plastic hinge conditions better than the structure that using full shear wall. Regarding the stepping of shear Forces and moments, showed that there was a jump of shear force of 1,59 times up to 2,33 times for the comparison of all models structure. As for the moment, the stepping of moment occurred at 2,19 times up to 4,67 times for the comparison of all models of the structure. Nevertheless, structural components that experiencing shear Forces and moments stepping still able to hold the stepping without additional reinForcement. From the overall analysis above, it can be concluded that the use of discontinuous shear wall for earthquake-resistant structures is feasible.