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خانه / اخبار تایپ شونده / An Investigation into the Axial Capacity of Concrete Filled Double Skin Tube Columns in Abaqus

An Investigation into the Axial Capacity of Concrete Filled Double Skin Tube Columns in Abaqus

Traditionally, columns have been constructed  from materials which are strong enough to withstand the  combined effects of vertical loads and moments applied to it.  The most common materials used for constructing columns  are either reinforced concrete (RC) or structural steel. This is  due to previous robust experimental research work which was  conducted to provide expressions for column design. Most  countries around the world have well-established codes of  practice to analysis and design columns using the expressions  developed from experimental work. The familiarity which  design engineers have with traditional RC and structural steel  columns have caused that other methods of construction have  been overlooked. In the last few decades other forms of  column construction developed to provide stability against  forces caused by seismicity and to promote ease of  construction. The most common alternatives to RC and  structural steel are steel encased concrete columns Concrete filled double skin tube (CFDST) columns is a new method of column construction.  CFDST columns consists of two steel hollow sections, one inside the other, concentrically  aligned. The cross-sections of the two hollow sections does not have to be the same shape.  Concrete is cast in between the two hollow sections resulting in a CFDST. This study only  considers CFDST columns constructed with circular steel hollow sections.You can see a figure of the assemble parts at below

Concrete is model as solid parts and tubes as shell parts. CDP material model is used to show concrete behavior and elastic plastic material for steel tubes. Dynamic Implicit and Dynamic Explicit are implied in this research separately to get the force displacement diagram .Between pipes and concrete friction,shear stress and elastic slip are considered. You can see some result of this simulation at below

You can provide CAE ,INP,and English video files of this simulation here. The cost of these files are  Twenty Five US Dollars. you can click on the bellow bottom to beginning process

This is a important point when you want to select the payment port,select ROD PAY(this is a payment port for foreign buyers) and you can pay just with Bitcoins

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درباره ی Abaqus

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