Seismic behavior of slab-structural wall junction of RC building
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摘要
In high seismic zone regions, slender reinforced concrete structural walls are commonly used in high-rise buildings as a main lateral load resisting element. These walls are very effective in limiting the lateral drift of the building due to their large in-plane stiffness. However, the presence of floor slabs influences the behavior of the shear wall. Also, the current design requirements do not account for the presence of floor slabs. To understand the behavior of wall-slab junctions and address the shortcomings of the current design requirements, the influence of two parameters, namely(a) aspect ratio and(b) longitudinal reinforcement ratio on the behavior is studied numerically. It is observed that the presence of floor slabs at different levels tends to partition the wall into squat wall panels between two consecutive floors. The wall-slab junctions show large stress concentrations arising from the strut action in the squat panels. It is also observed that the floor slabs can get significantly damaged near the wall-slab junction for lower vertical reinforcement ratios in the wall. Thus, the current codeprescribed minimum reinforcement in shear walls is not sufficient and needs to be revisited at for improved performance.
In high seismic zone regions, slender reinforced concrete structural walls are commonly used in high-rise buildings as a main lateral load resisting element. These walls are very effective in limiting the lateral drift of the building due to their large in-plane stiffness. However, the presence of floor slabs influences the behavior of the shear wall. Also, the current design requirements do not account for the presence of floor slabs. To understand the behavior of wall-slab junctions and address the shortcomings of the current design requirements, the influence of two parameters, namely(a) aspect ratio and(b) longitudinal reinforcement ratio on the behavior is studied numerically. It is observed that the presence of floor slabs at different levels tends to partition the wall into squat wall panels between two consecutive floors. The wall-slab junctions show large stress concentrations arising from the strut action in the squat panels. It is also observed that the floor slabs can get significantly damaged near the wall-slab junction for lower vertical reinforcement ratios in the wall. Thus, the current codeprescribed minimum reinforcement in shear walls is not sufficient and needs to be revisited at for improved performance.
In high seismic zone regions, slender reinforced concrete structural walls are commonly used in high-rise buildings as a main lateral load resisting element. These walls are very effective in limiting the lateral drift of the building due to their large in-plane stiffness. However, the presence of floor slabs influences the behavior of the shear wall. Also, the current design requirements do not account for the presence of floor slabs. To understand the behavior of wall-slab junctions and address the shortcomings of the current design requirements, the influence of two parameters, namely(a) aspect ratio and(b) longitudinal reinforcement ratio on the behavior is studied numerically. It is observed that the presence of floor slabs at different levels tends to partition the wall into squat wall panels between two consecutive floors. The wall-slab junctions show large stress concentrations arising from the strut action in the squat panels. It is also observed that the floor slabs can get significantly damaged near the wall-slab junction for lower vertical reinforcement ratios in the wall. Thus, the current codeprescribed minimum reinforcement in shear walls is not sufficient and needs to be revisited at for improved performance.
引文
Bari MS(1987),“Design of Shear Wall Connection Using Shear Reinforcement,”Ph.D.Thesis,University of Glasgow.
Bari MS(1996),“Nonlinear Finite Element Study of Shear Wall-Floor Slab Connections,”Journal of Civil Engineering,The Institution of Engineers,Bangladesh,CE,24(2):137?145.
Belletti B,Damoni C and Gasperi A(2013),“Modeling Approaches Suitable for Pushover Analyses of RCStructural Wall Buildings,”Engineering Structures,57(12):327?338.
Bureau of Indian Standards(BIS)(1987),Handbook of Concrete Reinforcement and Detailing,SP:34,New Delhi,India.
Bureau of Indian Standards(BIS)(2002),Indian Standard Criteria for Earthquake Resistant Design of Structures.Part 1:General Provisions and Buildings,IS1893,New Delhi,India.
Cardenas AE and Magura DD(1973),“Strength of High Rise Shear Walls-Rectangular Cross Sections,”ACISpecial Publication,119?150.
Coull A and Chee W(1986),“Stiffening of Structural Cores by Floor Slabs,”Journal of Structural Engineering,ASCE,112(5):977?994.
Coull A and Chee WY(1983),“Design of Floor Slabs Coupling Shear Walls,”Journal of Structural Engineering,ASCE,109(1):109?125.
Coull A and Chee WY(1984),“Stresses in Slab Coupling Flanged Shear Walls,”Journal of Structural Engineering,ASCE,110(1):105?119.
Coull A and Chee WY(1990),“Cracked Coupling Slabs in Shear Wall Buildings,”Journal of Structural Engineering,ASCE,116(6):1744?1748.
Coull A and Wong YC(1985),“Effect of Local Elastic Wall Deformations on the Interaction between Floor Slabs and Flanged Shear Wall,”Journal of Building and Environment,20:169?179.
Elnashai AS,Pilakoutas K and Ambraseys NN(1990),“Experimental Behavior of Reinforced Concrete Walls Under Earthquake Loading,”Earthquake Engineering and Structural Dynamics,19:389?407.
Fahjan YM,Kubin J and Tan MT(2010),“Nonlinear Analysis Methods for Reinforced Concrete Buildings with Shear Walls,”Proceedings of 14th European Conference on Earthquake Engineering.
Genikomsou AS and Polak MA(2015),“Finite Element Analysis of Punching Shear of Concrete Slabs Using Damaged Plasticity Model in ABAQUS,”Engineering Structures,98:38?48.
Greeshma S and Jaya KP(2013),“Effect of Slab Shear Reinforcement on the Performance of Shear WallFloor Slab Connection,”Journal of Performance of Constructed Facilities,ASCE,27(4):391?401.
Gulec CK and Whittaker AS(2009),“Performance-Based Assessment and Design of Squat Reinforced Concrete Shear Walls,”MCEER Technical Report-09-0010,MCEER,Buffalo.
Henriques J,Simoes da Silva L and Valente IB(2013),“Numerical Modeling of Composite Beam to Reinforced Concrete Wall Joints Part I:Global Behavior,”Engineering Structures,52:734?746.
Hibbit,Karlsson and Sorensen,Inc.(2010),Abaqus/Standard User’s Manual(Version 6.11-3),Pawtucket,RI.
Ile N and Reynouard J(2004),“Seismic Behavior of R/C Walls Subjected to Multidirectional Seismic Loading,”Thirteenth World Conference on Earthquake Engineering,Vancouver,Canada.
Jayasinghe JASC,Hori M,Riaz MR,Wijerathne MLLand Ichimura T(2017),“Conversion Between Solid and Beam Element Solutions of Finite Element Method Based on Meta-Modeling Theory:Development and Application to a Ramp Tunnel Structure,”Earthquake Engineering and Engineering Vibration,16(2):297?309.https://doi.org/10.1007/s11803-017-0383-z Kabeyasawa T,Shiohara H,Otani S and Aoyama H(1983),“Analysis of the Full-Scale Seven-Storey Reinforced Concrete Test Structure,”Journal of the Faculty of Engineering,University of Tokyo(B),Tokyo,Japan,37(2):431?478.
Kaushik S and Dasgupta K(2013),“Seismic Behavior of Slab-Structural Wall Junction in RC Building,”International Conference on Structural Engineering and Mechanics,Rourkela,India.
Khatri D and Anderson JC(1995),“Analysis of Reinforced Concrete Shear Wall Components Using the ADINA Nonlinear Concrete Model,”Computers&Structures,56(2/3):485?504.
Kim HS,Lee DG and Kim CK(2005),“Efficient ThreeDimensional Seismic Analysis of a High-Rise Building Structure with Shear Walls,”Engineering Structures,27(6):963-976.
Kwak HG and Kim DY(2004),“Material Nonlinear Analysis of RC Shear Walls Subject to Cyclic Loadings,”Engineering Structures,26:1423?1436.
Lee J and Fenves GL(1998),“Plastic-Damage Model for Cyclic Loading of Reinforced Concrete Structures,”Journal of Engineering Mechanics,ASCE,124(8):892?900.
Li ZJ,Balendra T,Tan TKH and Kong KH(2005),“Finite Element Modeling of Cyclic Behavior of Shear Wall Structure Retrofitted Using GFRP SP-230,”Seventh International Symposium on Fiber-Reinforced(FRP)Polymer Reinforcement for Concrete Structures,ACI.
Lubliner J,Oliver J,Oller S and Onate E(1989),“APlastic-Damage Model for Concrete,”International Journal of Solids and Structures,25(3):299?326.
Mahmood M(1984),“Strength and Stiffness of Shear Wall Floor Slab Connection,”Ph.D.Thesis,University of Glasgow.
Medhekar MS and Jain S K(1993),“Seismic Behavior,Design,and Detailing of R.C.Shear walls,Part I:Behavior and Strength,”The Indian Concrete Journal,67(7):311?318.
Mulas MG,Coronelli D and Martinelli L(2007),“MultiScale Modeling Approach for the Pushover Analysis of Existing RC Shear Walls-Part I:Model Formulation,”Earthquake Engineering and Structural Dynamics,36:1169?1187.
Orakcal K and Wallace,JW(2006),“Flexural Modeling of Reinforced Concrete Walls-Experimental Verification,”ACI Structural Journal,103(2):196?206.
Pantazopoulou S and Imran I(1992),“Slab-Wall Connections under Lateral Forces,”ACI Structural Journal,89(5):515?527.
Paulay T and Priestley MJN(1992),Seismic Design of Reinforced Concrete and Masonry Buildings,John Wiley and Sons Inc.,New York.
Paulay T and Taylor RG(1981),“Slab Coupling of Earthquake-Resisting Shear Walls,”ACI Structural Journal,78(2):130?140.
Qadeer A and Smith BS(1969),“The Bending Stiffness of Slabs Connecting Shear Walls,”ACI Structural Journal,66(6):464?473.
Schwaighofer J and Collins MP(1977),“Experimental Study of the Behavior of Reinforced Concrete Coupling Slabs,”ACI Structural Journal,74(3):123?127.
Shehata EAR,Ahmed KAZ and Ahmed MAT(2018),“Finite Element Modeling Assumptions Impact on Seismic Response Demands of MRF-Buildings,”
Earthquake Engineering and Engineering Vibration,17(4):821?834.https://doi.org/10.1007/s11803-018-0478-1
Zenunovic D and Folic R(2012),“Models for Behavior Analysis of Monolithic Wall and Precast or Monolithic Floor Slab Connections,”Engineering Structures,40:466?478.
Zheng N,Zhou J,Yin Y,Han J and Ji S(2012),“NonLinear Time History Response Analysis of Low Masonry Structure with Tie-Columns,”Fifteenth World Conference on Earthquake Engineering,Lisboa,Portugal.
Bari MS(1996),“Nonlinear Finite Element Study of Shear Wall-Floor Slab Connections,”Journal of Civil Engineering,The Institution of Engineers,Bangladesh,CE,24(2):137?145.
Belletti B,Damoni C and Gasperi A(2013),“Modeling Approaches Suitable for Pushover Analyses of RCStructural Wall Buildings,”Engineering Structures,57(12):327?338.
Bureau of Indian Standards(BIS)(1987),Handbook of Concrete Reinforcement and Detailing,SP:34,New Delhi,India.
Bureau of Indian Standards(BIS)(2002),Indian Standard Criteria for Earthquake Resistant Design of Structures.Part 1:General Provisions and Buildings,IS1893,New Delhi,India.
Cardenas AE and Magura DD(1973),“Strength of High Rise Shear Walls-Rectangular Cross Sections,”ACISpecial Publication,119?150.
Coull A and Chee W(1986),“Stiffening of Structural Cores by Floor Slabs,”Journal of Structural Engineering,ASCE,112(5):977?994.
Coull A and Chee WY(1983),“Design of Floor Slabs Coupling Shear Walls,”Journal of Structural Engineering,ASCE,109(1):109?125.
Coull A and Chee WY(1984),“Stresses in Slab Coupling Flanged Shear Walls,”Journal of Structural Engineering,ASCE,110(1):105?119.
Coull A and Chee WY(1990),“Cracked Coupling Slabs in Shear Wall Buildings,”Journal of Structural Engineering,ASCE,116(6):1744?1748.
Coull A and Wong YC(1985),“Effect of Local Elastic Wall Deformations on the Interaction between Floor Slabs and Flanged Shear Wall,”Journal of Building and Environment,20:169?179.
Elnashai AS,Pilakoutas K and Ambraseys NN(1990),“Experimental Behavior of Reinforced Concrete Walls Under Earthquake Loading,”Earthquake Engineering and Structural Dynamics,19:389?407.
Fahjan YM,Kubin J and Tan MT(2010),“Nonlinear Analysis Methods for Reinforced Concrete Buildings with Shear Walls,”Proceedings of 14th European Conference on Earthquake Engineering.
Genikomsou AS and Polak MA(2015),“Finite Element Analysis of Punching Shear of Concrete Slabs Using Damaged Plasticity Model in ABAQUS,”Engineering Structures,98:38?48.
Greeshma S and Jaya KP(2013),“Effect of Slab Shear Reinforcement on the Performance of Shear WallFloor Slab Connection,”Journal of Performance of Constructed Facilities,ASCE,27(4):391?401.
Gulec CK and Whittaker AS(2009),“Performance-Based Assessment and Design of Squat Reinforced Concrete Shear Walls,”MCEER Technical Report-09-0010,MCEER,Buffalo.
Henriques J,Simoes da Silva L and Valente IB(2013),“Numerical Modeling of Composite Beam to Reinforced Concrete Wall Joints Part I:Global Behavior,”Engineering Structures,52:734?746.
Hibbit,Karlsson and Sorensen,Inc.(2010),Abaqus/Standard User’s Manual(Version 6.11-3),Pawtucket,RI.
Ile N and Reynouard J(2004),“Seismic Behavior of R/C Walls Subjected to Multidirectional Seismic Loading,”Thirteenth World Conference on Earthquake Engineering,Vancouver,Canada.
Jayasinghe JASC,Hori M,Riaz MR,Wijerathne MLLand Ichimura T(2017),“Conversion Between Solid and Beam Element Solutions of Finite Element Method Based on Meta-Modeling Theory:Development and Application to a Ramp Tunnel Structure,”Earthquake Engineering and Engineering Vibration,16(2):297?309.https://doi.org/10.1007/s11803-017-0383-z Kabeyasawa T,Shiohara H,Otani S and Aoyama H(1983),“Analysis of the Full-Scale Seven-Storey Reinforced Concrete Test Structure,”Journal of the Faculty of Engineering,University of Tokyo(B),Tokyo,Japan,37(2):431?478.
Kaushik S and Dasgupta K(2013),“Seismic Behavior of Slab-Structural Wall Junction in RC Building,”International Conference on Structural Engineering and Mechanics,Rourkela,India.
Khatri D and Anderson JC(1995),“Analysis of Reinforced Concrete Shear Wall Components Using the ADINA Nonlinear Concrete Model,”Computers&Structures,56(2/3):485?504.
Kim HS,Lee DG and Kim CK(2005),“Efficient ThreeDimensional Seismic Analysis of a High-Rise Building Structure with Shear Walls,”Engineering Structures,27(6):963-976.
Kwak HG and Kim DY(2004),“Material Nonlinear Analysis of RC Shear Walls Subject to Cyclic Loadings,”Engineering Structures,26:1423?1436.
Lee J and Fenves GL(1998),“Plastic-Damage Model for Cyclic Loading of Reinforced Concrete Structures,”Journal of Engineering Mechanics,ASCE,124(8):892?900.
Li ZJ,Balendra T,Tan TKH and Kong KH(2005),“Finite Element Modeling of Cyclic Behavior of Shear Wall Structure Retrofitted Using GFRP SP-230,”Seventh International Symposium on Fiber-Reinforced(FRP)Polymer Reinforcement for Concrete Structures,ACI.
Lubliner J,Oliver J,Oller S and Onate E(1989),“APlastic-Damage Model for Concrete,”International Journal of Solids and Structures,25(3):299?326.
Mahmood M(1984),“Strength and Stiffness of Shear Wall Floor Slab Connection,”Ph.D.Thesis,University of Glasgow.
Medhekar MS and Jain S K(1993),“Seismic Behavior,Design,and Detailing of R.C.Shear walls,Part I:Behavior and Strength,”The Indian Concrete Journal,67(7):311?318.
Mulas MG,Coronelli D and Martinelli L(2007),“MultiScale Modeling Approach for the Pushover Analysis of Existing RC Shear Walls-Part I:Model Formulation,”Earthquake Engineering and Structural Dynamics,36:1169?1187.
Orakcal K and Wallace,JW(2006),“Flexural Modeling of Reinforced Concrete Walls-Experimental Verification,”ACI Structural Journal,103(2):196?206.
Pantazopoulou S and Imran I(1992),“Slab-Wall Connections under Lateral Forces,”ACI Structural Journal,89(5):515?527.
Paulay T and Priestley MJN(1992),Seismic Design of Reinforced Concrete and Masonry Buildings,John Wiley and Sons Inc.,New York.
Paulay T and Taylor RG(1981),“Slab Coupling of Earthquake-Resisting Shear Walls,”ACI Structural Journal,78(2):130?140.
Qadeer A and Smith BS(1969),“The Bending Stiffness of Slabs Connecting Shear Walls,”ACI Structural Journal,66(6):464?473.
Schwaighofer J and Collins MP(1977),“Experimental Study of the Behavior of Reinforced Concrete Coupling Slabs,”ACI Structural Journal,74(3):123?127.
Shehata EAR,Ahmed KAZ and Ahmed MAT(2018),“Finite Element Modeling Assumptions Impact on Seismic Response Demands of MRF-Buildings,”
Earthquake Engineering and Engineering Vibration,17(4):821?834.https://doi.org/10.1007/s11803-018-0478-1
Zenunovic D and Folic R(2012),“Models for Behavior Analysis of Monolithic Wall and Precast or Monolithic Floor Slab Connections,”Engineering Structures,40:466?478.
Zheng N,Zhou J,Yin Y,Han J and Ji S(2012),“NonLinear Time History Response Analysis of Low Masonry Structure with Tie-Columns,”Fifteenth World Conference on Earthquake Engineering,Lisboa,Portugal.