Papers by Keyword: Frame-Shear Wall Structure

Abstract: Dynamic test method is a more accurate method of indirect nondestructive testing. The dynamic characteristics of the buildings is obtained by dynamic response of high sensitivity under external excitation vibration pickup structure. The test of a reinforced concrete frame shear wall structure of a complex building was carried on as an example, and the evaluation of the overall performance of the structure was made through the test results.

Abstract: As a kind of pollution-free and sustainable energy, solar energy has received people’s favor increasingly. Integration of solar power and architecture has become one of the important ways that people use solar energy. In this paper, numerical analysis of four frame-shear wall structure models on which PV panels are installed or not installed is conducted by ANSYS. The results show that integration of solar power and architecture meets the requirements of technical specification for concrete structures of tall building. But PV panels installed on the building surface will increase story displacement and produce stress and strain redistribution, which have negative effects on structural safety. This study provides a reference for the structure design of integration of solar power and architecture.

Abstract: To study on the property of the column to wall connection in the prefabricated frame-shear wall structure, these four connection ways are introduced in the article, which are U-shaped ,double straight ,chain buckle, double straight vertical U-shaped bar splicing. Using ABAQUS to simulate, comparing results of four connection ways with the cast-in-situ concrete structure. The results show that mechanical properties of four prefabricated structures are similar to the cast-in-situ structure, but the maximum bearing capacities are reduced.

Abstract: For the study of column-wall connection technology of precast frame-shearwall structure system, four practical connection methods of wall-column subassembly in precast frame-shearwall structure were proposed in this paper. Based on the general finite element software ABAQUS, numerical simulations were carried out on the mechanical performance of the precast and cast-in-situ wall-column subassembly. Results showed that mechanical performance of the precast column-wall subassembly, such as carrying capacities, deformations and failure modes, was almost equal to the cast-in-situ wall-column subassembly. Feasibility of the connection method which this paper proposed is verified preliminarily. The research results can provide theoretical references for related experimental researches, engineering designs and constructions.

Abstract: This paper established the theoretical equations of transfer matrix method for frame shear wall structures to solve natural vibration and elastic response under earthquakes. Columns at each storey are combined into an equivalent shear member and shear walls are combined into an equivalent bending member. The structure is simplified as a double member system with the two members being coordinated by the in-plane infinite rigid floors. Transfer matrix of the structure was derived according to the fluctuated equations of equivalent members and the equilibrium and displacement compatibility conditions. After considering the boundary conditions at the bottom and top of structure, it presented the equations and method to solve seismic response, natural frequencies and modes of vibration of the structure. In comparison with FEM, it is a more convenient and universal method and is recommended for preliminary design of frame shear wall structures.

Abstract: Frame shear wall structure as a high-rise building one of the most widely used structure form, has good seismic performance and high bearing capacity, the frame shear wall structure research focused on the study of shear wall quantity more, pay attention to consider shear wall quantity and the intrinsic relationships between shear wall lateral stiffness and to seek the optimal design of shear wall stiffness, ignores the position of the shear wall, on the whole architecture of the influence of lateral stiffness, and can go, is set the location of the shear wall is difficult to study, this article will focus on the research of location of shear wall structure seismic performance, provide reference for the future of this kind of structure design.

Abstract: Based on the discussion of mechanical characteristics of frame shear-wall structure, the shear-wall is identified as the key component resisting seismic action. In view of the structural design requirements such as reliability and economy, the arrangement, amount and structural details of shear-wall is analyzed and proposed. The research may provide a good reference for engineers to reasonably design the frame shear-wall structure.

Abstract: along with the diversification of architectural image and the construction of complicated functions, there are more and more irregular buildings. Floor open hole especially floor open hole is the typical representative of irregular buildings. Floor open hole lead to floor in-plane rigidity weakening that open hole level stiffness drop form weak layer, the structure of the center of mass and centroid offset weak layer is larger, so in the earthquake under the action of stress is more complicated. Large-scale finite element software ANSYS is applied in this article simplified single documents across the floor in the middle of the hole structure is simulated and analyzed under the static load of open hole plate, beam and column structure deformation and stress distribution, and will not open holes in the floor and open hole in the floor slab under the action of horizontal static stress were analyzed.

Abstract: A new kind of RC frame-shear wall structures with partial columns sliding at upper ends is proposed in this paper. A shaking table test of this new kind of structure model (Model B) and a conventional frame shear-wall structure Model (Model A) were carried out, and the plan layout and the member size of the two models are nearly identical. The two models are 3-story and 2-bay by 2-bay, and the second story of either structure is weak story. The test results showed that: (1) under the same intense earthquake, the damage of Model B is slighter than that of Model A; and (2) under the same intense earthquake, the interstory drift angle, the acceleration and the shear force of weak story of Model B are reduced remarkably in comparison to Model A.

Abstract: A practical connection method of wall-column subassembly in new precast reinforced concrete frame-shearwall structure was proposed in this paper. Based on the general finite element software ABAQUS, numerical simulations were carried out on the mechanical performance of the precast and cast-in-situ wall-column subassemblies by using concrete damaged plastic model and bilinear kinematic hardening model. Results showed that mechanical performance of the precast wall-column subassembly, such as carrying capacities, deformations and failure modes, were almost equal to the cast-in-situ wall-column subassembly. Feasibility of the connection method which this paper proposed is verified preliminarily. The research results can provide theoretical references for related experimental researches, engineering designs and constructions.