Seismic Performance Analysis Of Abandoned Glass Concrete Columns

With the rapid development of the economy and the increasing living standards of people,millions of tons of waste glass solid waste will be produced every year.Most of the glass garbage is treated by landfilling,etc.,and the glass is not easy to be decomposed,which will pollute the land,causing a serious burden on the environment.The recycling and processing of the glass is complicated,and the processing cost is expensive,which increases the society and the environment.burden.Today's construction industry is developing rapidly,and the building materials are in short supply.It is of great practical significance to replace the concrete with aggregate glass as a composite material to prepare new glass concrete.It is also an effective way to effectively treat waste glass waste.Waste glass has been studied as a new concrete raw material.In this paper,the large-scale finite element software ABAQUS is used to study the seismic performance of abandoned glass concrete columns under low cyclic loading.In this paper,the seismic behavior of column members under low-cycle repeated loading is studied.By changing the parameters of the component model,including parameters such as waste glass replacement rate,axial compression ratio,slenderness ratio and eccentricity,21 waste glass concrete columns are established.The model of the members was observed for their stress and failure modes,and the load-displacement hysteresis curves and skeleton curves under low-cycle repeated loads were obtained.When the single parameters are different,the seismic performance of the abandoned glass concrete column under low cycle repeated loading is analyzed by comparing the hysteresis curve,skeleton curve,bearing capacity,ductility coefficient and stiffness degradation of the column members.After research and analysis,it is concluded that the hysteresis curves of the 21 column members are fusiform,and they are all full and show good ductility and energy dissipation performance.The load-displacement skeleton curves of all column members show the ascending segment-enhancement segment-downward seglent,the curve changes are relatively stable,and the seismic performance is good.With the increase of slenderness ratio,the stiffness of the composite glass concrete column decreases,the ductility performance decreases,and the seismic performance decreases obviously.However,the axial compression ratio has little effect on the seismic perfornance;as the eccentricity increases,the seismic performance will also follow.The decline.However,the seismic performance of discarded glass concrete columns with different replacement rates of the same parameters is similar,especially the waste glass concrete column with 100%glass replacement rate is very close to the seismic performance of ordinary concrete columns,even better than ordinary concrete columns,indicating waste glass.The glass reinforced concrete column that is 100%replaced by fine aggregate has sufficient advantages,so it is completely feasible to use waste glass for building structural members.