Papers by Engineer Muneer
ggd, 2019
This study deals with the finite element modelling of reinforced concrete beam and column using A... more This study deals with the finite element modelling of reinforced concrete beam and column using ANSYS. The study covers a comprehensive introduction to ANSYS, such that any beginner can learn the useful and effective use of the ANSYS in order to model and analyze any type of structure like beam and column. ANSYS is a very handy and effective tool in modelling and analysis of various structural element based on finite element modelling. A detailed study of the work includes the modelling of beam and column with specific cross sections and reinforcement details. Further the column with a lateral hole at the center is evaluated in terms of cracking response around the hole. The experimental work is carried out in the concrete laboratory of civil engineering department UET Taxila .The results of that experimental work is then compared eventually with the results that's were obtained by analysis through ANSYS. As a summary of the work the results were compared in terms of the stress, strain and cracking around the hole. It is concluded that the response of the column around the hole/opening in terms of cracking pattern in both elastic and post elastic stages was much more comparable with that of experimental work. Introduction For providing pipes for utility services, holes are required in structural members. Usually these holes are provided in beams and slabs as columns are critical members of a structural system and their failure results in partial or complete collapse of building. Limiting holes to only beams and slabs, results in complex network especially in multistory buildings. If holes (transverse) are provided in column by carefully taking in account the effect of stress distribution and reduction in load carrying capacity then it will result in more organized and economical network. Therefore this study is aimed at discussing alternate solutions using which hole in column can be provided without compromising on its original strength. The finite element method has thus become a powerful computational tool, which allows complex analyses of the nonlinear response of RC structures to be carried out in a routine fashion. With the help of this method the importance and interaction of different nonlinear effects on the response of RC structures can be studied analytically. A follow-up study will address the response of these structures under real time loading by Finite element modelling method using the most reliable tool i.e. ANSYS 17.0. A brief review of previous studies on the application of the finite element method to the analysis of reinforced concrete structures is presented is this section. In the earliest publication by Ngo and Scordelis (1967) on the application of the finite element method/modelling of RC structures, simple beams were analyzed by meshing it into triangular elements of constant strain and a special bond link element was used to connect the steel to the concrete. Also described the bond-slip effect while modelling RCC structure. A linear elastic analysis was performed on beams with predefined crack patterns to determine principal stresses in concrete, stresses in steel reinforcement and bond stresses.For the analysis of RC beams with material and geometric nonlinearities Rajagopal (1976) developed a layered rectangular plate element with axial and bending stiffness in which concrete was treated as an orthotropic material. RC beam and slab problems have also been treated by many other investigators (Lin and Scordelis 1975; Bashur and Darwin 1978; Rots et al. 1985; Barzegar and Schnobrich 1986; Adeghe and Collins 1986; Bergmann and Pantazopoulou 1988; Cervenka et al. 1990; Kwak 1990) using similar methods.The behavior of RC columns with longitudinal hole was studied using three-dimensional non-linear finite element method and the finite element modeling of the columns predict much higher strength for the columns than experimental result (Basravi 2010).Study conducted by (Qais Majeed 2012) in which experimental and nonlinear finite element analysis of creating square openings in existing RC beams and strengthening with CFRP laminate was carried. The beams were modeled using a FEM packaged (ANSYS 11).The results indicate that the strengthened beam recorded the highest failure load and its mode of failure was ductile. The numerical results seemed to be able to predict the behavior of the beams.The behavior of reinforced concrete columns with holes under axial load is researched to help designers and structural code officials (Ehab M. Lotfy 2013) and the experimental results were compared with finite element model using ANSYS.
This study deals with the finite element modelling of reinforced concrete beam and column using A... more This study deals with the finite element modelling of reinforced concrete beam and column using ANSYS. The study covers a comprehensive introduction to ANSYS, such that any beginner can learn the useful and effective use of the ANSYS in order to model and analyze any type of structure like beam and column. ANSYS is a very handy and effective tool in modelling and analysis of various structural element based on finite element modelling. A detailed study of the work includes the modelling of beam and column with specific cross sections and reinforcement details. Further the column with a lateral hole at the center is evaluated in terms of cracking response around the hole. The experimental work is carried out in the concrete laboratory of civil engineering department UET Taxila .The results of that experimental work is then compared eventually with the results that's were obtained by analysis through ANSYS. As a summary of the work the results were compared in terms of the stress, strain and cracking around the hole. It is concluded that the response of the column around the hole/opening in terms of cracking pattern in both elastic and post elastic stages was much more comparable with that of experimental work. Introduction For providing pipes for utility services, holes are required in structural members. Usually these holes are provided in beams and slabs as columns are critical members of a structural system and their failure results in partial or complete collapse of building. Limiting holes to only beams and slabs, results in complex network especially in multistory buildings. If holes (transverse) are provided in column by carefully taking in account the effect of stress distribution and reduction in load carrying capacity then it will result in more organized and economical network. Therefore this study is aimed at discussing alternate solutions using which hole in column can be provided without compromising on its original strength. The finite element method has thus become a powerful computational tool, which allows complex analyses of the nonlinear response of RC structures to be carried out in a routine fashion. With the help of this method the importance and interaction of different nonlinear effects on the response of RC structures can be studied analytically. A follow-up study will address the response of these structures under real time loading by Finite element modelling method using the most reliable tool i.e. ANSYS 17.0. A brief review of previous studies on the application of the finite element method to the analysis of reinforced concrete structures is presented is this section. In the earliest publication by Ngo and Scordelis (1967) on the application of the finite element method/modelling of RC structures, simple beams were analyzed by meshing it into triangular elements of constant strain and a special bond link element was used to connect the steel to the concrete. Also described the bond-slip effect while modelling RCC structure. A linear elastic analysis was performed on beams with predefined crack patterns to determine principal stresses in concrete, stresses in steel reinforcement and bond stresses.For the analysis of RC beams with material and geometric nonlinearities Rajagopal (1976) developed a layered rectangular plate element with axial and bending stiffness in which concrete was treated as an orthotropic material. RC beam and slab problems have also been treated by many other investigators (Lin and Scordelis 1975; Bashur and Darwin 1978; Rots et al. 1985; Barzegar and Schnobrich 1986; Adeghe and Collins 1986; Bergmann and Pantazopoulou 1988; Cervenka et al. 1990; Kwak 1990) using similar methods.The behavior of RC columns with longitudinal hole was studied using three-dimensional non-linear finite element method and the finite element modeling of the columns predict much higher strength for the columns than experimental result (Basravi 2010).Study conducted by (Qais Majeed 2012) in which experimental and nonlinear finite element analysis of creating square openings in existing RC beams and strengthening with CFRP laminate was carried. The beams were modeled using a FEM packaged (ANSYS 11).The results indicate that the strengthened beam recorded the highest failure load and its mode of failure was ductile. The numerical results seemed to be able to predict the behavior of the beams.The behavior of reinforced concrete columns with holes under axial load is researched to help designers and structural code officials (Ehab M. Lotfy 2013) and the experimental results were compared with finite element model using ANSYS.
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Papers by Engineer Muneer