- 【标题】Seismic behavior and modeling of steel reinforced concrete (SRC) walls
- 【摘要】The steel reinforced concrete (SRC) wall consists of structural steel embedded at the boundary
elements of a reinforced concrete (RC) wall. The use of SRC walls has gained popularity in the
construction of high-rise buildings because of their superior performance over conventional RC walls.
This paper presents a series of quasi-static tests used to examine the behavior of SRC walls subjected
to high axial force and lateral cyclic loading. The SRC wall specimens showed increased flexural
strength and deformation capacity relative to their RC wall counterpart. The flexural strength of SRC
walls was found to increase with increasing area ratio of embedded structural steel, while the section
type of embedded steel did not affect the wall’s strength. The SRC walls under high axial force ratio
had an ultimate lateral drift ratio of approximately 1.4%. In addition, a multi-layer shell element
model was developed for the SRC walls, and was implemented in the OpenSees program. The numerical model
was validated through comparison with the test data. The model was able to predict the lateral
stiffness, strength and deformation capacities of SRC walls with a reasonable level of accuracy.
Finally, a number of issues for the design of SRC walls are discussed, along with a collection and
analysis of the test data, including: (1) evaluation of flexural strength, (2) calculation of effective
flexural stiffness, and (3) inelastic deformation capacity of SRC walls.
- 【关键词】steel reinforced concrete (SRC) walls; seismic behavior; flexural strength; deformation capacity;
multi-layer shell element model; axial force ratio
- 【索引】SCI: CF4XI, Citation: 0