International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 10 | Oct 2022
p-ISSN: 2395-0072
www.irjet.net
A Building Frame Experimental Study Supported On Piles Ch. Rajesh1, B. Kesava Rao2 1.M.Tech.,
Student, Department of Civil Engineering, RVR&JC College of Engineering, Guntur, INDIA Professor, Department of Civil Engineering, RVR&JC College of Engineering, Guntur, INDIA ---------------------------------------------------------------------***--------------------------------------------------------------------2Assistant
Abstract - This study uses the findings of static vertical load
a rigidly supported structure. Furthermore, taking into account the SSI effect raises the system's effective damping ratio. The smooth idealisation of the design spectrum implies a smaller seismic response with increased natural periods and effective damping ratio due to SSI, which is the main reason for seismic design codes to reduce the design base shear when the SSI effect is taken into account. Furthermore, taking into account the SSI effect raises the system's effective damping ratio. The smooth idealisation of the design spectrum implies a smaller seismic response with increased natural periods and effective damping ratio due to SSI, which is the main reason for seismic design codes to reduce the design base shear when the SSI effect is taken into account.
testing to illustrate the impact of beam on a model building frame supported by a single pile buried in cohesion soil (red soil). The impacts of the beam on the building frame at column bases were examined. The materials used for experimental test are aluminum specimen with length of 300 mm, 500 mm and 700 mm of diameter 20 mm as pile below the building model frame along with pile cap of size 60mm×60mm and thickness of 20mm and hollow rectangular steel specimen of size 50×50mmx700mm whose thickness is 3mm .The interaction analysis is carried out on the beam, building frame and pile which are placed on the soil. The response includes the displacement at the bottom. The effect of the soil-structure interaction is observed to be significant for the type of foundation and soil considered in the present study
1.2 Building frame and Pile Deformation of the foundation resting on deformable soils is caused by the rigidity of the foundation, superstructure, and soil. Nonetheless, the traditional method of analysing framed structures assumes that bases are either completely rigid or completely flexible. As a result, interactive analysis is required to evaluate the response superstructure correctly. Numerous interactive analyses have been conducted. Several studies have been conducted on this subject. Many numbers work, and comparative studies on pile foundation can be found, but there has been little experimentation. Work on framed analysis was reported for structures supported by pile foundations in order to account for soil-structure interaction. A thorough experimental investigation was carried out in this study. Pile groups on the model supported the plane frame with beam. Embedded single piles. Individual piles embedded in red sand. The building frame is subjected to static loads (concentrated loads in the centre).
Key Words: Soil Structure Interaction (SSI), Building Frame, Piles, Beam and Cohesion soil
1. INTRODUCTION The study of soil-structure interaction (SSI) is related to earthquake engineering. It is critical to understand that the structural response is primarily caused by soil-structure interaction forces that act on the structure. This is an example of earthquake stimulation. When compared to freefield ground motion, a committee of engineering research is only interested in the study of soil-structure interaction when these forces have a discernible effect on basement motion. The motion recorded on the soil's surface without the involvement of the structure is known as free-field ground motion.
1.1 SSI
The study of a building frame supported by a single pile embedded in red soil has not been reported elsewhere, according to a review of the literature. As a result of this, the red soil is collected for the study.
It is commonly assumed that SSI is a purely beneficial effect that can be conveniently ignored for conservative design. Seismic design code SSI provisions are optional and allow designers to reduce building design base shear by considering soil-structure interaction (SSI) as a beneficial effect. The provisions' main idea is that the soil-structure system can be replaced with an equivalent fixed-base model with a longer period and, in most cases, a higher damping ratio. The majority of design codes employ oversimplified design spectra that achieve constant acceleration up to a certain period and then decrease monotonically with period. Considering soil-structure interaction makes a structure more flexible, increasing its natural period when compared to
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2. STATIC STRUCTURE INTERACTION The dynamic interaction of structure-soil-structure was introduced, and the research methods were discussed. A systematic summary of the history and status of structuresoil-structure and static interaction research that considers adjacent structures was proposed as a reference for researchers based on several documents. Given its complexity and oversimplification of the model for soil and structures, this study is still in its early stages, but it should
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