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Abstrak :
Kerusakan/keruntuhan yang sering terjadi pada bangunan ?non-engineered? pada saat terjadi gempa bumi adalah kerusakan/keruntuhan dinding bata. Salah satu metode perbaikan yang ekonomis adalah dengan menggunakan kawat anyam prategang.Untuk mengetahui peningkatan kinerja dinding bata akibat penambahan kawat prategang, maka dilakukan penelitian yang berdasarkan pendekatan Continuum Model dengan bantuan perangkat lunak SAP2000 v14.1.0. Struktur yang dimodelkan yaitu satu panel dinding dan ruko 3-lantai-3-bentang. Kedua model dievaluasi dengan analisis statik linier. Satu panel dinding dikenakan beban lateral statik dan ruko 3-lantai-3-bentang dikenai beban gempa statik ekuivalen berdasarkan SNI 03-1726-2002. Pada pemodelan ini, dinding bata dihubungkan dengan struktur portal elemen link yang kaku. Untuk mensimulasikan perubahan perilaku dinding bata akibat separasi dari struktur portal dilakukan pelepasan elemen link Untuk mengetahui peningkatan kekuatan, dilakukan analisis tegangan. Sedangkan untuk mengetahui perubahan kekakuan, dilakukan analisis terhadap karakteristik dinamik. Analisis terhadap hasil penelitian menunjukkan bahwa penambahan kawat prategang meningkatkan kekuatan atau kapasitas dinding bata, namun tidak terjadi perubahan yang signifikan terhadap kekakuannya dan terjadi perubahan letak tegangan maksimum pada dinding bata akibat pelepasan link menuju diagonal strut. ......The damage frequently found on the non-engineered building is the damage on its masonry wall. One of the economical alternatives is by using nailed prestressed low grade wire. To evaluate the increase on masonry wall?s performance as the result of the addition of pre-stressed low grade wire and the behavior of masonry wall, the research is done by continuum model approach by the help of SAP2000 v14.1.0. software. The structures modeled are one wall panel and 3-bays-3-stories store house. Those two models are evaluated with static linear analysis. The one wall panel loaded by static lateral load and the 3-bays-3-stories store house is loaded by static equivalent earthquake load based on SNI 03-1726-2002. On this modelling, masonry wall is linked to frame structure with rigid link element. To simulate the behavioral change of masonry wall as a result of separation of frame structure, the link element is released To evaluate the increase of strength, stress analysis is done. While, to evaluate the change of rigidity, analysis of dynamic characteristic is done. Analysis on the research?s result shows that the addition of prestressed wire increases the strength of the masonry wall. On the other hand, the change on the rigidity does not show a significant value. However, there is a change on the location of maximum stress on the masonry wall as a result of the link release to diagonal strut.

Abstrak :
Perbaikan dinding bata yang retak dengan kawat anyam semakin banyak digunakan. Penelitian ini bertujuan untuk mengetahui efektifitas metode perbaikan dinding bata yang retak dengan menggunakan kawat anyam dan plester. Analisis dilakukan dengan cara memodelkan dinding bata dengan continuum model pada perangkat lunak SAP2000 v14.1. Struktur yang dimodelkan yaitu satu panel dinding dan ruko 3-lantai-3-bentang. Koneksi panel dinding dengan portal dimodelkan dengan rigid link. Kedua model dievaluasi dengan analisis statik linier. Satu panel dinding dikenakan beban lateral statik dan ruko 3-lantai-3-bentang dikenai beban gempa statik ekuivalen. Pada model satu panel dinding juga diamati perubahan distribusi tegangan pada portal akibat pelepasan link. Untuk mengetahui peningkatan kekuatan, dilakukan analisis tegangan. Sedangkan untuk mengetahui perubahan kekakuan, dilakukan analisis terhadap karakteristik dinamik. Analisis terhadap hasil penelitian menunjukkan bahwa penambahan kawat anyam dalam perbaikan dinding bata meningkatkan kekuatan atau kapasitas dinding namun tidak signifikan pengaruhnya terhadap kekakuan. ......Repairing cracked masonry wall with low-grade wire mesh is increasingly being used. This study aims to determine the effectiveness of the retrofitting method for cracked masonry wall using both low-grade wire mesh and plaster. The analysis was performed by modeling the masonry wall with continuum model using SAP2000 v14.1. The modeling was carried out on both a single panel of masonry wall structure and a 3-bays-3-stories store-house building (ruko) structure. The connection between panel and frames was modeled as a rigid link. Both models were then evaluated by linear static analysis. A single panel structure models were subjected to static lateral loads. The 3-bays-3-stories store¬house building models were imposed by static equivalent load based on nominal earthquake load. The change of stress distribution in frames due to the releasing of link was also observed on the single panel models. To determine the increasing on strength, the stress analysis was performed. However, to evaluate the stiffness changes, the analysis of the dynamic properties was done. The analysis of the results indicated that the addition of low-grade wire mesh in retrofitting masonry walls increases the strength of the structure but does not significantly influence its stiffness.

Abstrak :
Indonesia merupakan wilayah yang rawan terhadap gempa bumi. Banyak bangunan non engineer yang mengalami kerusakan pada dinding batanya akibat terkena beban gempa. Berdasarkan kebiasaan, masyarakat melakukan perbaikan dinding bata yang retak dengan plester tanpa mengetahui kinerja dari perbaikan ini. Tujuan dari penelitian ini adalah untuk mengkaji efek perbaikan dinding bata retak dengan plester. Pemodelan dinding bata dilakukan dengan pendekatan continuum model menggunakan perangkat lunak SAP2000 v14.1 yang dianalisis pada batas linier elastis. Elemen link digunakan sebagai penghubung dinding bata dengan portal beton. Dua jenis struktur yang dimodelkan, yaitu struktur dengan satu panel dinding bata dan ruko tiga lantai tiga bentang. Kedua model dikenai beban lateral gempa berdasarkan SNI 03-1726-2002. Efek separasi antara dinding bata dan portal beton dimodelkan dengan melepas elemen link. Peningkatan kekuatan dinding bata dianalisis melalui evaluasi tegangan pada dinding bata dan plester sedangkan, perubahan kekakuannya melalui evaluasi karakteristik dinamik struktur. Hasil perbaikan dengan plester menunjukkan peningkatan kekakuan dan kekuatan dinding bata. ......Indonesia is a vulnerable region of earthquake. Many non-engineering buildings undergo destructions on their masonry walls due to earthquake induced force. People used to repair the cracked masonry wall using plaster without clearly understanding the performance of such repairment. The aim of this research is to determine the effect of cracked masonry wall repairment using plaster. The modeling of masonry wall was done by continuum model approach using SAP 2000 v14.1 which was analyzed within the elastic linear limit state. The link element was used as the connector between masonry wall and concrete frame. Two types of structure were modeled, a structure with one masonry wall panel and a three stories three bays store-house building. Both models were induced by lateral load based on SNI 03-1726-2002. The separation effect between masonry wall and concrete frame was modeled by releasing the link element. The increasing on strength of masonry wall was analyzed through a stress evaluation on wall and plaster, though the stiffness change was analyzed through the dynamic properties of the structures. The result of the repair using plaster indicated an increasing in both strength (capacity) and stiffness of masonry wall.