Browsing by Subject "Building"
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Item An Analysis on Building Energy Consumption by Using Simulation Tool: A Case Study of Existing Office Building in Kathmandu Valley(I.O.E. Pulchowk Campus, 2022-03) Mandal, RoshaniConcerns about climate change are driving an increase in the demand for energy conservation. Buildings are large energy consumers in all countries, thus studying the impact of climate change on building energy performance is important. Building energy simulation software is a useful tool in this regard. A suitable set of typical weather files plays an important role in the success of building energy simulation. The objective of this research is to evaluate the impact of climate change on energy consumption mainly due to atmospheric temperature change in the future. This study reports the work of developing a set of weather data files for Kathmandu, taking into the effects of future climate change. An existing Typical meteorological year (TMY) weather file of period 1973-1996 composed of weather data by the SWERA project was assumed as the baseline climate in this study. The monthly average temperature for future periods was predicted by SDSM (statistical downscaling model) under different emission scenarios, was further downscaled to hourly temperature data using the downscaling method, morphing.Item Seismic Perfromance of Masonary Building With Timber Frames(Faculty Civil Engineering, 2006) Shakya, KabirNepali traditional dwelling houses constructed in brick masonry with traditional technology constitute the major type of structures in the urban nuclei of the Kathmandu Valley. Preservation of these structures against possible earthquakes is of prime concern in view of conservation needs. The present study deals with the seismic evaluation of typical traditional Nepali traditional dwelling houses constructed in brick masonry with traditional technology constitute the major type of structures in the urban nuclei of the Kathmandu Valley. Preservation of these structures against possible earthquakes is of prime concern in view of conservation needs. The present study deals with the seismic evaluation of typical traditional building of brick masonry with timber frames. The present work of the comprehensive study on the subject is divided into two parts. In the first part, various modeling of connections between different elements of brickwork and timber is studied through analysis of number of analytical test models. Based on the results of the sensitivity study of different joint models, the most efficient and appropriate model adopted in the seismic evaluation of the typical traditional dwelling house, the second part of the work. The seismic evaluation of the typical building is carried out by three dimensional analysis of the structure using finite element method. For the analysis, the brickwork is discretized as the eight nodded solid elements, and the timber beams and columns as frame elements. The flexible timber floor is duly considered. The building is assessed for various load cases including gravity loads and earthquake effects in terms of response spectra. The results of the analysis show that the traditional floors and the spandrels of the existing structure are the weakest parts which need strengthening to make the structure withstand earthquake excitation. The required improvement and strengthening techniques are proposed mainly with the floor converted into rigid floor diaphragm. The analysis of the modified structure shows considerable improvement in the dynamic characteristics of the building and overall structural response. of brick masonry with timber frames. The present work of the comprehensive study on the subject is divided into two parts. In the first part, various modeling of connections between different elements of brickwork and timber is studied through analysis of number of analytical test models. Based on the results of the sensitivity study of different joint models, the most efficient and appropriate model adopted in the seismic evaluation of the typical traditional dwelling house, the second part of the work. The seismic evaluation of the typical building is carried out by three dimensional analysis of the structure using finite element method. For the analysis, the brickwork is discretized as the eight nodded solid elements, and the timber beams and columns as frame elements. The flexible timber floor is duly considered. The building is assessed for various load cases including gravity loads and earthquake effects in terms of response spectra. The results of the analysis show that the traditional floors and the spandrels of the existing structure are the weakest parts which need strengthening to make the structure withstand earthquake excitation. The required improvement and strengthening techniques are proposed mainly with the floor converted into rigid floor diaphragm. The analysis of the modified structure shows considerable improvement in the dynamic characteristics of the building and overall structural response.