Performance of squat 3D sandwich walls with longitudinal reinforcement and boundary elements under lateral cyclic loading
01 Nov 2018-Journal of Sandwich Structures and Materials (SAGE PublicationsSage UK: London, England)-Vol. 20, Iss: 8, pp 946-973
TL;DR: In this paper, a 3D sandwich precast concrete wall is used in building construction due to their superior performance, thermal efficiency, and speed of fabrication, when applied to low-r...
Abstract: Three-dimensional (3D) sandwich precast concrete walls are often used in building construction due to their superior performance, thermal efficiency, and speed of fabrication. When applied to low-r...
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TL;DR: In this paper, the effect of fire on 3D panel partitions is presented and the results indicated that as fire load increases, the stiffness and ductility factor are reduced, while the nonstructural elements are not designed for structural loading conditions.
Abstract: Structural and nonstructural members are always encountered with extreme loading conditions. In case of nonstructural members, the failure happens much sooner due to lack of load capacity. The nonstructural elements are not designed for structural loading conditions. However, they might be impacted to other loading types such as fire. In recent years, the use of 3D panel is one of the most common partitions in the world. In this research, the effect of fire on 3D panel partitions is presented. To achieve this goal, ABAQUS finite element software is employed to simulate the 3D panel. The 3D panel is embedded inside steel frame. In order to have an accurate result, two validations are performed including steel frame and the steel frame with 3D panel. In the study, 5 different fire loadings 200, 400, 600, 800 and 1000°C are applied into the model. Results include load-displacement diagram and stiffness and ductility factors. The results indicated that as fire load increases, the stiffness and ductility factor are reduced.
5 citations
Cites background from "Performance of squat 3D sandwich wa..."
...Poluraju and Appa Rao (2018) conducted experimental tests on squat 3D sandwich walls under both vertical and lateral loading conditions....
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...DOI: 10.1016/j.proeng.2013.03.020 Poluraju, P. and G. Appa Rao, 2018....
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TL;DR: In this article , a study on the flexural behavior of sandwich beams made of self-compacting concrete comprising a polystyrene inner core with wire mesh reinforcement was presented. And the effect of the wire mesh in shear and flexural resistance was studied.
Abstract: Sandwich beams are preferable for aerostructure and marine structures due to their high mechanical strength, durability, stiffness, and fatigue resistance. This paper presents a study on the flexural behavior of sandwich beams made of self-compacting concrete comprising a polystyrene inner core with wire mesh reinforcement. The effect of the design parameters such as the inner core area, percentage of tension reinforcement, and wire mesh on the moment carrying capacity and failure modes of sandwich beams was analyzed. Ten beams were cast and tested to failure with simply supported end conditions and they were classified into three different groups. The longitudinal section of the inner core area was varied by 0% (control beam), 25%, 50%, and 75% of the gross area. The tension reinforcement ratio varied between 0.6 and 1.5%. In addition, the effect of the wire mesh in shear and flexural resistance was studied. The load-carrying capacity of sandwich beams increased with flexural reinforcement. In addition, the welded wire mesh improved the sandwich beams’ flexural and shear performance. The conventional expressions for the moment of resistance were valid for sandwich beams, whereas the shear strength expressions overestimated the capacity; therefore, modifications were suggested. The refined models had a significant agreement with the experimental results.
4 citations
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27 Mar 1992
TL;DR: In this paper, the causes and effects of earthquakes: Seismicity, Structural Response, Seismic Action, and Seismical Action in Member Design principles of member design.
Abstract: Causes and Effects of Earthquakes: Seismicity--Structural Response--Seismic Action. Principles of Member Design. Reinforced Concrete Ductile Frames. Structural Walls. Dual Systems. Masonry Structures. Reinforced Concrete Buildings with Restricted Ductility. Foundation Structures. Appendices. Symbols. References. Index.
3,086 citations
Book•
06 Jul 1999
TL;DR: In this paper, the authors present the following concepts of limit state verification of seismic resistance of masonry buildings: structural walls masonry infilled reinforced concrete frames seismis resistance verification of structural walls, repair and strengthening of Masonry buildings.
Abstract: Earthquakes and seismic performance of masonry buildings masonry materials and construction systems architectural and structural concepts of earthquake-resistant building configuration floors and roofs basic concepts of limit state verification of seismic resistance of masonry buildings seismic resistance verification of structural walls masonry infilled reinforced concrete frames seismis resistance verification of masonry buildings repair and strengthening of masonry buildings.
590 citations
"Performance of squat 3D sandwich wa..." refers background in this paper
...The particular hysteretic behavior of 3D sandwich walls under combined constant axial load and in-plane lateral load can be represented by an idealized bi- or trilinear capacity curve (Tomazevic [23])....
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...Idealization of experimental envelope with bilinear relationship (Tomaževič, 1999 [23])....
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...According to Tomaževič (1999 [23]), the average value of the ratio Hu/ Hmax was 0....
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Book•
01 Jan 1991
TL;DR: In this article, the authors present a model for analysis of high-rise buildings, including wall-frame structures, outrigger-braced structures, and reinforced-branched structures.
Abstract: Tall Buildings. Design Criteria. Loading. Structural Form. Modeling for Analysis. Braced Frames. Rigid-Frame Structures. Infilled-Frame Structures. Shear Wall Structures. Coupled Shear Wall Structures. Wall-Frame Structures. Tubular Structures. Core Structures. Outrigger-Braced Structures. Generalized Theory. Stability of High-Rise Buildings. Dynamic Analysis. Creep, Shrinkage, and Temperature Effects. Appendices. Bibliography. Index.
470 citations
TL;DR: In this article, two geometrically identical half-scale precast concrete cantilever wall units were constructed and tested under quasi-static reversed cyclic lateral loading and showed that the conventional precast reinforced wall performed very well in terms of the ductility capacity and energy absorption capability, reaching 2.5% drift before significant strength degradation.
Abstract: Two geometrically identical half-scale precast concrete cantilever wall units were constructed and tested under quasi-static reversed cyclic lateral loading. One unit was a code compliant conventionally reinforced specimen, designed to emulate the behavior of a ductile cast-in-place concrete wall. The other unit was part of a precast partially prestressed system that incorporated post-tensioned unbonded carbon fiber tendons and steel fiber reinforced concrete. Hysteretic energy dissipation devices were provided in the latter unit in the form of low yield strength tapered longitudinal reinforcement, acting as a fuse connection between the wall panel and the foundation beam. The conventional precast reinforced wall performed very well in terms of the ductility capacity and energy absorption capability, reaching 2.5% drift before significant strength degradation occurred. The precast partially prestressed wall unit achieved drift levels well in excess of 3% with no visible damage to the wall panel prior to failure. Test results and performance comparisons between the precast partially prestressed wall system and the precast conventionally reinforced unit are presented.
319 citations
"Performance of squat 3D sandwich wa..." refers background in this paper
...8 lw Lever arm h and v lateral and longitudinal rebar ratios fc 0 cylinder compressive strength fyd yield stress of rebar ACI 318-08 [16] Vn 1⁄4 Acð c ffiffiffi f 0 c p þ hfyÞ ac 3....
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223 citations