List of Articles Adjacent building

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  1 - Effect of Gap Length and Using Viscoelastic Damper on ReducingSeismic Pounding in Adjacent Low-Rise Concrete Buildings
  s.mehdi zahraei s.mohammad khatami
  Significant growth of buildings in different shapes and heights in urban areas and lack of attention to their dependence being adjacent to each other during earthquakes has increased devastating effects of seismic loads. Existing buildings have been designed and constru More

  Significant growth of buildings in different shapes and heights in urban areas and lack of attention to their dependence being adjacent to each other during earthquakes has increased devastating effects of seismic loads. Existing buildings have been designed and constructed separately against earthquakes. However, to pounding of adjacent buildings has been less paid attention. Since different buildings are designed independently thus their floor levels are not at the same height and probable sudden poundings during earthquakes can damage and collapse the weaker building. There are two kinds of such poundings: floor to floor and floor to column that 1st case is investigated in this research. In this paper, in order to determineand reduce the pounding forces between adjacent buildings, two 2 and 3-story RC buildings are considered in which floor to floor pounding is studied. To prevent or reduce pounding damage, the effect of gap distance between two adjacent buildings and using viscoelastic damper in their bracingon reducing seismic impact and related pounding are investigated. SAP2000 and ANSYS are used for numerical study.Analyses results show that using viscoelastic dampers and increasing distance between two buildings would reduce their lateral displacements and related pounding. For example, 3cm distance between two adjacent buildings would create 7 impacts while increasing the distance to 4.5cm would reduce the impacts to 2. Also, placement of viscoelastic dampers between building floors would control their lateral displacements and reduce the impacts to just one. Manuscript profile
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  2 - Investigation of Excavation Behavior of Construction Reinforced with Soil Nailing in Cohesive and Non-Cohesive Soils
  Mohammad Najafi Salehi Sina Fard Moradinia Rouzbeh Dabiri
  Today, heavy traffic and urban transportation problems are the most important problems of big cities. It seems that one of the best ways to reduce these problems is to use underground transportation and urban tunnels. Geotechnical studies are important factors in determ More

  Today, heavy traffic and urban transportation problems are the most important problems of big cities. It seems that one of the best ways to reduce these problems is to use underground transportation and urban tunnels. Geotechnical studies are important factors in determining the type, shape and cost of construction of underground structures. In other words, their type, design and construction depend on geological and geotechnical conditions. It should be noted that in many cases there is no suitable land for underground excavations for the construction of underground structures, according to which urban stations must be built within a certain range and it is not possible to change their route to achieve more suitable land. In this research, with the help of PLAXIS software, the wall cavity variable at the northern entrance of Tehran Metro Station No. 6 has been investigated. The effect of soil variables (Mohr-Columb modulus variables), building variables (building width, building distance) and pit variables (pit width and depth) have been investigated. The results showed that the displacement in the longitudinal direction of the pit wall in the consolidation analysis mode increased compared to the amount of displacement in the longitudinal direction of the pit wall in the plastic analysis mode. Also, the maximum internal force is created in the nails of the lower third region. Manuscript profile