SlideShare a Scribd company logo
Comparison of performance of High-strength to Normal-strength Reinforced Concrete
                                                                     Slab under Blast Loading using Experiments and Finite Element Modeling
                                                                                         Author:                                                                                                                                                    PI: Ganesh Thiagarajan
                                                                                      Gunjan Shetye                                                                                                                                                   Associate Professor,
                                                                                    Graduate Student                                                                                                                                 Civil Engineering, University of Missouri-Kansas City
                                                                  Civil Engineering, University of Missouri-Kansas City                                                                                                          (Grant # 748085, Hazard Mitigation and Structural Engineering )


                                                      The Problem                                                                                       Objective                                             Finite Element Modeling in LS-DYNA                              Experimental and Numerical Model comparison
   Civilian structures around the world have                                                                                 The study focusses on                                                     Finite element model of the                                                             Figure 1: Crack propagation behavior and comparison with experiment for Slab#2

    been targets of aggressor attacks in the                                                                                   two types of reinforced                                                    slab was generated in LS-DYNA
    past and recent times.                                                                                                     concrete (RC) slabs,                                                       pre-post .
                                                                                                                               namely high strength                                                      3 mesh sizes were applied.
   Threat to human life.                                                                                                      concrete reinforced with                                                  Support conditions as per the
                                                                                                                               high strength steel                                                        experiment were provided by
   Blast resistant design has been applied to                                                                                 (HSC-VR) and normal                                                        restraining the nodes.
    military structures in the past.                                                                                           strength concrete reinforced with normal strength steel (RSC-R).          Blast surface was defined on the
                                                                                                                              The effect of reinforcement ratio on the response is also considered       model.
   The need of the hour is to transfer                                                                                        by looking at two different reinforcement ratios for each slab
    blast-effects mitigation technologies                                                                                      combination.
                                                                                                                                                                                                                             Geometric models                                                                 Damage patterns observed in Winfrith
                                                                                                                                                                                                                                                                                                              Concrete Model.
                                                                                                                                                                                                                                                                                                                                                                          Damage patterns observed in the

    from military to civilian applications.                          Alfred P .Murrah Federal Building after the Bombing
                                                                                                                              Finally, slabs with a single layer of reinforcement steel in the                                                                                                                                                                           experiment

                                                                                           Incident
                                                                                Courtesy: http://en.wikipedia.org              unloaded face and a double layer of steel in both the loaded and
                                                                                                                               unloaded blast face will be compared.
                                                       Measures
   Conduct experimental and analytical studies on structural systems
                                                                                                                                                           Scope
    which represent conventional civilian buildings and construction                                                          An experimental investigation was carried out on 12 RC slab
    practices.                                                                                                                 panels, each panel of size 64” X 34” X 4” having combination of
                                                                                                                               HSC-VR and RSC-R were tested by applying blast pressures in a
   Use computer based modeling to asses extent of damage to                                                                   Shock Tube (Blast Load Simulator).
    building’s structural components.
                                                                                                                              The same set of 12 slab panels are numerically modeled using Finite
   Conduct research and testing of common building materials such as                                                          Element Modeling in LS-DYNA using mainly two material models
    regular strength concrete and conventional steel rebar.                                                                    which are Concrete Damage Model Release 3 and Winfrith concrete
                                                                                                                               Model.
                                                      Introduction
                                                                                                                              Two different reinforcement ratios for two different bar spacing are                                                                           Note: Results for deflection of slabs for experiment and LS-DYNA cannot be disclosed here as they are a part of blind prediction contest under the
   The project aims to conduct experimental and analytical study of                                                           being studied and also two types reinforcement configuration, single                                                                           research project.


    the components of a conventional civilian structural system                                                                and double mat which are widely used are considered.
    components: slab, columns and beams for blast loading.                                                                                                                                                          Material models in LS-DYNA                                                                  Discussion and Conclusion
                                                                                                                              Comparison of results obtained in the Experiment is compared
   The analytical study is through two numerical modeling procedure:                                                          with Finite Element Analysis results.

1. Single Degree of Freedom Methods
                                                                                                                                           Experimental Investigation
SBEDS/CEDAW:
             Programs widely used                                                                                          Blast Load Simulator (Shock Tube)
             by structural engineers                                                                                                                                                  RC slab
                                                                            http://www.mfg.mtu.edu/cyberman/machtool/mac
                                                                                                                                                                                      panel
                                                                            htool/vibration/x2.gif
                                                                                                                                                                                      mounted in
2. Advanced Finite Element Modeling                                                                                                                                                   target vessel
LS-DYNA:
         A non-linear transient
         dynamic finite element
         analysis program                                                                                                                                                                                                                                                                                                            Future Work
                                                                            Slab model in LS-DYNA

                                                                                                                                                                      RC slab panel
                                                                                                                                                                                                                          Blast load application
                                                                                                                           RC slab panel (back
                                                  Research significance                                                    view) response
                                                                                                                                                                      mounted on
                                                                                                                                                                      supporting
                                                                                                                           under blast loading                        frame                                               Numerical Simulation
   The research presented aims at strengthening a component of
    structural system, a reinforced concrete slab by using high
                                                                                                                                                                                                      LS-DYNA Simulation results displaying contours of stress distribution
    performance material.
   The effectiveness in resisting blast loading of such a strengthened
    slab is being analyzed using computer based finite element modeling
    in LS-DYNA.
                                                                                                                                                                                                                                                                                                                             Acknowledgement
    An experimental investigation was carried out on 12 reinforced
    concrete slab panels by subjecting them to pressure conditions
    equivalent to those in a blast event as generated by a shock tube
    (Blast Load Simulator).
   The behavior of these slabs is recorded in terms of the total
    displacements, strain and acceleration. The post-test observations of
    this slabs investigated the failure crack patterns in detail.                                                                                                                                           a. Damage Rel3 Model               b.Winfrith Concrete Model
     RESEARCH POSTER PRESENTATION DESIGN © 2012

     www.PosterPresentations.com
                                                                                                                                                      12 sets of RC slab panel post-test images

More Related Content

What's hot

High volume fly ash concrete
High volume fly ash concreteHigh volume fly ash concrete
High volume fly ash concrete
varunkv222
 
Corrosion Assessment – Half-Cell Potential Method for reinforced concrete
Corrosion Assessment – Half-Cell Potential Method for reinforced concreteCorrosion Assessment – Half-Cell Potential Method for reinforced concrete
Corrosion Assessment – Half-Cell Potential Method for reinforced concrete
Yash Shah
 
recycled aggregate concrete
recycled aggregate concreterecycled aggregate concrete
recycled aggregate concrete
SaiChander9
 
fibre reinforced polymer(FRP)
fibre reinforced polymer(FRP)fibre reinforced polymer(FRP)
fibre reinforced polymer(FRP)
Aravind Ganesh
 
Types and properties of cement
Types and properties of cementTypes and properties of cement
Types and properties of cement
ARmiteshrank
 
lightweight concrete
lightweight concretelightweight concrete
lightweight concreteAgatha Fred
 
HIGH-VOLUME FLY ASH CONCRETE
HIGH-VOLUME FLY ASH CONCRETEHIGH-VOLUME FLY ASH CONCRETE
HIGH-VOLUME FLY ASH CONCRETE
Umer Farooq
 
Recyled aggregates (Concrete Technology and Building Materials)
Recyled aggregates (Concrete Technology and Building Materials)Recyled aggregates (Concrete Technology and Building Materials)
Recyled aggregates (Concrete Technology and Building Materials)'Animesh Khare'
 
Silica fume concrete
Silica fume concreteSilica fume concrete
Silica fume concrete
selva ganesh
 
Concrete mineral admixtures
Concrete mineral admixturesConcrete mineral admixtures
Concrete mineral admixtures
iindhu567
 
“BACTERIAL CONCRETE” ppt
“BACTERIAL CONCRETE” ppt“BACTERIAL CONCRETE” ppt
“BACTERIAL CONCRETE” ppt
AjeetPanedakatti
 
Chapter 3 materials & techniques for repairs
Chapter 3 materials & techniques for repairsChapter 3 materials & techniques for repairs
Chapter 3 materials & techniques for repairs
Ankit Patel
 
G+3 APARTMENT BUILDING PROJECT REPORT
G+3 APARTMENT BUILDING  PROJECT  REPORTG+3 APARTMENT BUILDING  PROJECT  REPORT
G+3 APARTMENT BUILDING PROJECT REPORT
Fresher Thinking
 
Cement
CementCement
High strength concrete
High strength concreteHigh strength concrete
High strength concrete
Dr K M SONI
 
Waste material concrete ppt
Waste material  concrete pptWaste material  concrete ppt
Waste material concrete ppt
Uday Kakde
 
Marsh cone test
Marsh cone testMarsh cone test
Marsh cone test
SJMIT,now NMAMIT NITTE
 
Ternary blended concrete using fly ash and silica fume. PPT
Ternary blended concrete using fly ash and silica fume. PPTTernary blended concrete using fly ash and silica fume. PPT
Ternary blended concrete using fly ash and silica fume. PPT
Md Faiz Ali
 
Concrete Mix Design
Concrete Mix DesignConcrete Mix Design
Concrete Mix Design
GAURAV. H .TANDON
 

What's hot (20)

High volume fly ash concrete
High volume fly ash concreteHigh volume fly ash concrete
High volume fly ash concrete
 
Corrosion Assessment – Half-Cell Potential Method for reinforced concrete
Corrosion Assessment – Half-Cell Potential Method for reinforced concreteCorrosion Assessment – Half-Cell Potential Method for reinforced concrete
Corrosion Assessment – Half-Cell Potential Method for reinforced concrete
 
recycled aggregate concrete
recycled aggregate concreterecycled aggregate concrete
recycled aggregate concrete
 
fibre reinforced polymer(FRP)
fibre reinforced polymer(FRP)fibre reinforced polymer(FRP)
fibre reinforced polymer(FRP)
 
Types and properties of cement
Types and properties of cementTypes and properties of cement
Types and properties of cement
 
lightweight concrete
lightweight concretelightweight concrete
lightweight concrete
 
HIGH-VOLUME FLY ASH CONCRETE
HIGH-VOLUME FLY ASH CONCRETEHIGH-VOLUME FLY ASH CONCRETE
HIGH-VOLUME FLY ASH CONCRETE
 
Recyled aggregates (Concrete Technology and Building Materials)
Recyled aggregates (Concrete Technology and Building Materials)Recyled aggregates (Concrete Technology and Building Materials)
Recyled aggregates (Concrete Technology and Building Materials)
 
Silica fume concrete
Silica fume concreteSilica fume concrete
Silica fume concrete
 
Concrete mineral admixtures
Concrete mineral admixturesConcrete mineral admixtures
Concrete mineral admixtures
 
“BACTERIAL CONCRETE” ppt
“BACTERIAL CONCRETE” ppt“BACTERIAL CONCRETE” ppt
“BACTERIAL CONCRETE” ppt
 
Chapter 3 materials & techniques for repairs
Chapter 3 materials & techniques for repairsChapter 3 materials & techniques for repairs
Chapter 3 materials & techniques for repairs
 
G+3 APARTMENT BUILDING PROJECT REPORT
G+3 APARTMENT BUILDING  PROJECT  REPORTG+3 APARTMENT BUILDING  PROJECT  REPORT
G+3 APARTMENT BUILDING PROJECT REPORT
 
Cement
CementCement
Cement
 
High strength concrete
High strength concreteHigh strength concrete
High strength concrete
 
Waste material concrete ppt
Waste material  concrete pptWaste material  concrete ppt
Waste material concrete ppt
 
Marsh cone test
Marsh cone testMarsh cone test
Marsh cone test
 
Ternary blended concrete using fly ash and silica fume. PPT
Ternary blended concrete using fly ash and silica fume. PPTTernary blended concrete using fly ash and silica fume. PPT
Ternary blended concrete using fly ash and silica fume. PPT
 
GGBS PPT
GGBS PPTGGBS PPT
GGBS PPT
 
Concrete Mix Design
Concrete Mix DesignConcrete Mix Design
Concrete Mix Design
 

Viewers also liked

Poster presentation on green buildings
Poster presentation on green buildingsPoster presentation on green buildings
Poster presentation on green buildingsnachar r
 
Poster on PLASTIC BRICKS
Poster on PLASTIC BRICKSPoster on PLASTIC BRICKS
Poster on PLASTIC BRICKS
Amit Tyagi
 
Plant oils and their uses1veg oils
Plant oils and their uses1veg oilsPlant oils and their uses1veg oils
Plant oils and their uses1veg oilsSteve Bishop
 
Fiber reinforcement concrete
Fiber reinforcement concrete  Fiber reinforcement concrete
Fiber reinforcement concrete
Ahmad Ali Miftah
 
Sust 4103 capstone project poster freeman
Sust 4103 capstone  project poster freemanSust 4103 capstone  project poster freeman
Sust 4103 capstone project poster freemanuaocs
 
Sust 4103 capstone project poster rookstool
Sust 4103 capstone project poster rookstoolSust 4103 capstone project poster rookstool
Sust 4103 capstone project poster rookstooluaocs
 
Seismic design considerations mike sheehan
Seismic design considerations mike sheehanSeismic design considerations mike sheehan
Seismic design considerations mike sheehan
Shaikh Mohsin
 
Polymer modified steel fibre reinforced concrete
Polymer modified steel fibre reinforced concretePolymer modified steel fibre reinforced concrete
Polymer modified steel fibre reinforced concrete
Ishan Garg
 
ECO-BRICK TECHNOLOGY
ECO-BRICK TECHNOLOGYECO-BRICK TECHNOLOGY
ECO-BRICK TECHNOLOGY
Maya Maya
 
Pervious concrete
Pervious concretePervious concrete
Pervious concrete
shiva prakash
 
Polymer concrete and fiber reinforced polymer concrete
Polymer concrete and fiber reinforced polymer concretePolymer concrete and fiber reinforced polymer concrete
Polymer concrete and fiber reinforced polymer concrete
Mohammed Abdul Haakim
 
Seismic Analysis
Seismic AnalysisSeismic Analysis
Seismic Analysis
Krishnagnr
 
Table of Fixed End Moments Formulas
Table of Fixed End Moments FormulasTable of Fixed End Moments Formulas
Table of Fixed End Moments FormulasAnas Share
 
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...Mintu Choudhury
 
Volunteering at KCSTI
Volunteering at KCSTIVolunteering at KCSTI
Volunteering at KCSTI
Gunjan Shetye
 
Dynamics Project
Dynamics ProjectDynamics Project
Dynamics Project
Gunjan Shetye
 
Seismic Design Of Structures Project
Seismic Design Of Structures ProjectSeismic Design Of Structures Project
Seismic Design Of Structures Project
Gunjan Shetye
 

Viewers also liked (20)

Poster presentation on green buildings
Poster presentation on green buildingsPoster presentation on green buildings
Poster presentation on green buildings
 
Poster on PLASTIC BRICKS
Poster on PLASTIC BRICKSPoster on PLASTIC BRICKS
Poster on PLASTIC BRICKS
 
Plant oils and their uses1veg oils
Plant oils and their uses1veg oilsPlant oils and their uses1veg oils
Plant oils and their uses1veg oils
 
Fiber reinforcement concrete
Fiber reinforcement concrete  Fiber reinforcement concrete
Fiber reinforcement concrete
 
Sust 4103 capstone project poster freeman
Sust 4103 capstone  project poster freemanSust 4103 capstone  project poster freeman
Sust 4103 capstone project poster freeman
 
Sust 4103 capstone project poster rookstool
Sust 4103 capstone project poster rookstoolSust 4103 capstone project poster rookstool
Sust 4103 capstone project poster rookstool
 
C1.2 limestone
C1.2 limestoneC1.2 limestone
C1.2 limestone
 
Seismic design considerations mike sheehan
Seismic design considerations mike sheehanSeismic design considerations mike sheehan
Seismic design considerations mike sheehan
 
Polymer modified steel fibre reinforced concrete
Polymer modified steel fibre reinforced concretePolymer modified steel fibre reinforced concrete
Polymer modified steel fibre reinforced concrete
 
ECO-BRICK TECHNOLOGY
ECO-BRICK TECHNOLOGYECO-BRICK TECHNOLOGY
ECO-BRICK TECHNOLOGY
 
Seismic Design Basics - Superstructure
Seismic Design Basics - SuperstructureSeismic Design Basics - Superstructure
Seismic Design Basics - Superstructure
 
Pervious concrete
Pervious concretePervious concrete
Pervious concrete
 
Polymer concrete and fiber reinforced polymer concrete
Polymer concrete and fiber reinforced polymer concretePolymer concrete and fiber reinforced polymer concrete
Polymer concrete and fiber reinforced polymer concrete
 
Seismic Analysis
Seismic AnalysisSeismic Analysis
Seismic Analysis
 
Table of Fixed End Moments Formulas
Table of Fixed End Moments FormulasTable of Fixed End Moments Formulas
Table of Fixed End Moments Formulas
 
Blast Loading
Blast LoadingBlast Loading
Blast Loading
 
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...
MODAL AND RESPONSE SPECTRUM (IS 18932002) ANALYSIS 0F R.C FRAME BUILDING (IT ...
 
Volunteering at KCSTI
Volunteering at KCSTIVolunteering at KCSTI
Volunteering at KCSTI
 
Dynamics Project
Dynamics ProjectDynamics Project
Dynamics Project
 
Seismic Design Of Structures Project
Seismic Design Of Structures ProjectSeismic Design Of Structures Project
Seismic Design Of Structures Project
 

Similar to Poster Presentation at Missouri Concrete conference

Can fracture mechanics predict damage due disaster of structures
Can fracture mechanics predict damage due disaster of structuresCan fracture mechanics predict damage due disaster of structures
Can fracture mechanics predict damage due disaster of structures
eSAT Publishing House
 
Gc3111781183
Gc3111781183Gc3111781183
Gc3111781183
IJERA Editor
 
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
IJERA Editor
 
IRJET- Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
IRJET-  	  Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...IRJET-  	  Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
IRJET- Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
IRJET Journal
 
Seismic response of frp strengthened rc frame
Seismic response of frp strengthened rc frameSeismic response of frp strengthened rc frame
Seismic response of frp strengthened rc frameiaemedu
 
Static Analysis of G+2 Institutional Building in Bhopal
Static Analysis of G+2 Institutional Building in BhopalStatic Analysis of G+2 Institutional Building in Bhopal
Static Analysis of G+2 Institutional Building in Bhopal
IJERA Editor
 
Seismic Evaluation of G+2 Institutional Building in Bhopal
Seismic Evaluation of G+2 Institutional Building in BhopalSeismic Evaluation of G+2 Institutional Building in Bhopal
Seismic Evaluation of G+2 Institutional Building in Bhopal
International Journal of Latest Research in Engineering and Technology
 
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
IRJET Journal
 
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
IRJET Journal
 
IRJET- A Review on Progressive Collapse of Composites Structures
IRJET- A Review on Progressive Collapse of Composites StructuresIRJET- A Review on Progressive Collapse of Composites Structures
IRJET- A Review on Progressive Collapse of Composites Structures
IRJET Journal
 
Seismic and progressive collapse mitigation of shear energy dissipation beam ...
Seismic and progressive collapse mitigation of shear energy dissipation beam ...Seismic and progressive collapse mitigation of shear energy dissipation beam ...
Seismic and progressive collapse mitigation of shear energy dissipation beam ...
IRJET Journal
 
Determination of Fracture Parameters of Conventional Concrete using ANSYS
Determination of Fracture Parameters of Conventional Concrete using ANSYSDetermination of Fracture Parameters of Conventional Concrete using ANSYS
Determination of Fracture Parameters of Conventional Concrete using ANSYS
IRJET Journal
 
Performance based seismic design of the multi-storied reinforced concrete bui...
Performance based seismic design of the multi-storied reinforced concrete bui...Performance based seismic design of the multi-storied reinforced concrete bui...
Performance based seismic design of the multi-storied reinforced concrete bui...
IRJET Journal
 
Review on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
Review on Structural Performance of Braced Steel Sturtures Under Dynamic LoadingReview on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
Review on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
IRJET Journal
 
IRJET- Comparative Study of Multi-Storey Building with Coupled Shear Wall...
IRJET-  	  Comparative Study of Multi-Storey Building with Coupled Shear Wall...IRJET-  	  Comparative Study of Multi-Storey Building with Coupled Shear Wall...
IRJET- Comparative Study of Multi-Storey Building with Coupled Shear Wall...
IRJET Journal
 
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
IRJET Journal
 
F012515059
F012515059F012515059
F012515059
IOSR Journals
 
IRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
IRJET- Experimental Investigation on Seismic Retrofitting of RCC StructuresIRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
IRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
IRJET Journal
 
Seismic Behavior of Steel Frame Structure with and Without Bracing
Seismic Behavior of Steel Frame Structure with and Without BracingSeismic Behavior of Steel Frame Structure with and Without Bracing
Seismic Behavior of Steel Frame Structure with and Without Bracing
IRJET Journal
 
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
Md. Sajjak Hosain
 

Similar to Poster Presentation at Missouri Concrete conference (20)

Can fracture mechanics predict damage due disaster of structures
Can fracture mechanics predict damage due disaster of structuresCan fracture mechanics predict damage due disaster of structures
Can fracture mechanics predict damage due disaster of structures
 
Gc3111781183
Gc3111781183Gc3111781183
Gc3111781183
 
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
Analysis and Capacity Based Earthquake Resistance Design of Multy Bay Multy S...
 
IRJET- Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
IRJET-  	  Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...IRJET-  	  Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
IRJET- Effect of Infill Wall Stiffness Variations on the Behaviour of RC ...
 
Seismic response of frp strengthened rc frame
Seismic response of frp strengthened rc frameSeismic response of frp strengthened rc frame
Seismic response of frp strengthened rc frame
 
Static Analysis of G+2 Institutional Building in Bhopal
Static Analysis of G+2 Institutional Building in BhopalStatic Analysis of G+2 Institutional Building in Bhopal
Static Analysis of G+2 Institutional Building in Bhopal
 
Seismic Evaluation of G+2 Institutional Building in Bhopal
Seismic Evaluation of G+2 Institutional Building in BhopalSeismic Evaluation of G+2 Institutional Building in Bhopal
Seismic Evaluation of G+2 Institutional Building in Bhopal
 
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
Effect of Moment Capacity Ratio at Beam-Column Joint of RC Framed building: A...
 
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
Comparative Study on Masonry Infill, Friction Dampers and Bare Frame Structur...
 
IRJET- A Review on Progressive Collapse of Composites Structures
IRJET- A Review on Progressive Collapse of Composites StructuresIRJET- A Review on Progressive Collapse of Composites Structures
IRJET- A Review on Progressive Collapse of Composites Structures
 
Seismic and progressive collapse mitigation of shear energy dissipation beam ...
Seismic and progressive collapse mitigation of shear energy dissipation beam ...Seismic and progressive collapse mitigation of shear energy dissipation beam ...
Seismic and progressive collapse mitigation of shear energy dissipation beam ...
 
Determination of Fracture Parameters of Conventional Concrete using ANSYS
Determination of Fracture Parameters of Conventional Concrete using ANSYSDetermination of Fracture Parameters of Conventional Concrete using ANSYS
Determination of Fracture Parameters of Conventional Concrete using ANSYS
 
Performance based seismic design of the multi-storied reinforced concrete bui...
Performance based seismic design of the multi-storied reinforced concrete bui...Performance based seismic design of the multi-storied reinforced concrete bui...
Performance based seismic design of the multi-storied reinforced concrete bui...
 
Review on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
Review on Structural Performance of Braced Steel Sturtures Under Dynamic LoadingReview on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
Review on Structural Performance of Braced Steel Sturtures Under Dynamic Loading
 
IRJET- Comparative Study of Multi-Storey Building with Coupled Shear Wall...
IRJET-  	  Comparative Study of Multi-Storey Building with Coupled Shear Wall...IRJET-  	  Comparative Study of Multi-Storey Building with Coupled Shear Wall...
IRJET- Comparative Study of Multi-Storey Building with Coupled Shear Wall...
 
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...
 
F012515059
F012515059F012515059
F012515059
 
IRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
IRJET- Experimental Investigation on Seismic Retrofitting of RCC StructuresIRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
IRJET- Experimental Investigation on Seismic Retrofitting of RCC Structures
 
Seismic Behavior of Steel Frame Structure with and Without Bracing
Seismic Behavior of Steel Frame Structure with and Without BracingSeismic Behavior of Steel Frame Structure with and Without Bracing
Seismic Behavior of Steel Frame Structure with and Without Bracing
 
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
Cyclic Load Test on Beam-Column Behavior of Portal Frame Strengthening by Mic...
 

Poster Presentation at Missouri Concrete conference

  • 1. Comparison of performance of High-strength to Normal-strength Reinforced Concrete Slab under Blast Loading using Experiments and Finite Element Modeling Author: PI: Ganesh Thiagarajan Gunjan Shetye Associate Professor, Graduate Student Civil Engineering, University of Missouri-Kansas City Civil Engineering, University of Missouri-Kansas City (Grant # 748085, Hazard Mitigation and Structural Engineering ) The Problem Objective Finite Element Modeling in LS-DYNA Experimental and Numerical Model comparison  Civilian structures around the world have  The study focusses on  Finite element model of the Figure 1: Crack propagation behavior and comparison with experiment for Slab#2 been targets of aggressor attacks in the two types of reinforced slab was generated in LS-DYNA past and recent times. concrete (RC) slabs, pre-post . namely high strength  3 mesh sizes were applied.  Threat to human life. concrete reinforced with  Support conditions as per the high strength steel experiment were provided by  Blast resistant design has been applied to (HSC-VR) and normal restraining the nodes. military structures in the past. strength concrete reinforced with normal strength steel (RSC-R).  Blast surface was defined on the  The effect of reinforcement ratio on the response is also considered model.  The need of the hour is to transfer by looking at two different reinforcement ratios for each slab blast-effects mitigation technologies combination. Geometric models Damage patterns observed in Winfrith Concrete Model. Damage patterns observed in the from military to civilian applications. Alfred P .Murrah Federal Building after the Bombing  Finally, slabs with a single layer of reinforcement steel in the experiment Incident Courtesy: http://en.wikipedia.org unloaded face and a double layer of steel in both the loaded and unloaded blast face will be compared. Measures  Conduct experimental and analytical studies on structural systems Scope which represent conventional civilian buildings and construction  An experimental investigation was carried out on 12 RC slab practices. panels, each panel of size 64” X 34” X 4” having combination of HSC-VR and RSC-R were tested by applying blast pressures in a  Use computer based modeling to asses extent of damage to Shock Tube (Blast Load Simulator). building’s structural components.  The same set of 12 slab panels are numerically modeled using Finite  Conduct research and testing of common building materials such as Element Modeling in LS-DYNA using mainly two material models regular strength concrete and conventional steel rebar. which are Concrete Damage Model Release 3 and Winfrith concrete Model. Introduction  Two different reinforcement ratios for two different bar spacing are Note: Results for deflection of slabs for experiment and LS-DYNA cannot be disclosed here as they are a part of blind prediction contest under the  The project aims to conduct experimental and analytical study of being studied and also two types reinforcement configuration, single research project. the components of a conventional civilian structural system and double mat which are widely used are considered. components: slab, columns and beams for blast loading. Material models in LS-DYNA Discussion and Conclusion  Comparison of results obtained in the Experiment is compared  The analytical study is through two numerical modeling procedure: with Finite Element Analysis results. 1. Single Degree of Freedom Methods Experimental Investigation SBEDS/CEDAW: Programs widely used Blast Load Simulator (Shock Tube) by structural engineers RC slab http://www.mfg.mtu.edu/cyberman/machtool/mac panel htool/vibration/x2.gif mounted in 2. Advanced Finite Element Modeling target vessel LS-DYNA: A non-linear transient dynamic finite element analysis program Future Work Slab model in LS-DYNA RC slab panel Blast load application RC slab panel (back Research significance view) response mounted on supporting under blast loading frame Numerical Simulation  The research presented aims at strengthening a component of structural system, a reinforced concrete slab by using high LS-DYNA Simulation results displaying contours of stress distribution performance material.  The effectiveness in resisting blast loading of such a strengthened slab is being analyzed using computer based finite element modeling in LS-DYNA. Acknowledgement  An experimental investigation was carried out on 12 reinforced concrete slab panels by subjecting them to pressure conditions equivalent to those in a blast event as generated by a shock tube (Blast Load Simulator).  The behavior of these slabs is recorded in terms of the total displacements, strain and acceleration. The post-test observations of this slabs investigated the failure crack patterns in detail. a. Damage Rel3 Model b.Winfrith Concrete Model RESEARCH POSTER PRESENTATION DESIGN © 2012 www.PosterPresentations.com 12 sets of RC slab panel post-test images