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Department of Civil Engineering
Tsinghua University
Beijing, PR China,100084
Email
luxinzheng@sina.com
My Blog
Last revised on Aug. 01. 10
Study on the Earthquake Behavior of Concrete Structures
Design Methods for Collapse Prevention
Collapse Simulation and Structural Robustness
Study on Progressive Collapse of RC Structures
New Structural System and Design Method
Structural Damage Simulation----Numerical and Experimental Analysis
Papers for download
Latest Journal Papers for Download
Latest Conference Papers for Download

Experimental Data

Influence of Floor Slabs on the Progressive Collapse of RC Frames

(From: Lu XZ, Lin KQ, Li Y, Guan H, Ren PQ, Zhou YL, Experimental investigation of RC beam-slab substructures against progressive collapse subject to an edge-column-removal scenario, Engineering Structures, Accepted on Jul. 2016)
Download Test Data Excel File
(From: PQ, Li Y, Lu XZ, Guan H, Zhou YL, Experimental investigation of progressive collapse resistance of one-way reinforced concrete beam-slab substructures under a middle-column-removal scenario, Engineering Structures, 2016, 118: 28-40.)
Download Test Data Excel File

RC Frame and Key Elements Test Database

From: Xie LL, Lu XZ, Guan H, Lu X, Experimental study and numerical model calibration for earthquake-induced collapse of RC frames with emphasis on key columns, joints and overall structure. Journal of Earthquake Engineering, 2015, 19:8, 1320-1344.

reinforcement concrete columnsreinforcement concrete columns

Experimental study of reinforcement concrete columns

reinforcement concrete frame

Experimental study of reinforcement concrete frame

reinforcement concrete joints

Experimental study of reinforcement concrete joints

Test setup
Test setup
Test setup
Experimental data
Experimental data
Experimental data

FRP-Concrete Interface Test Database

From: Lu XZ, Studies on FRP-Concrete Interface, Doctoral Thesis, Tsinghua University, 2004.

Dowload FRP-Concrete Interface pull tests data (254 Specimens)
Download Intermediate Crack Debonding in FRP-Strengthened RC Beams data (80 Specimens)
Download RC beams FRPshear-strengthened data(69 Specimens)

Axial Compression Test Database of Short Concrete Filled Steel Tubes

From: Lu XZ, Zhang WK, Li Y, Ye LP, Size effect of axial strength of concrete-filled square steel tube columns, Journal of Shenyang Jianzhu University(Natural Science), 2012, 28(6): 974-980. (PDF Download).

Download concrete filled steel tube test data (252 Specimens)

Square Concrete Filled Steel Tubes Test Database

From: Zhang WK, Study on the earthquake-induced collapse of a super-tall mega-braced frame-core tube building, Master Thesis, Tsinghua University, 2013.5.

Download the test data and finite element model of square concrete filled steel tubes (36 Specimens)

Finite element analysis source codes
1
Solving planer truss with Newton-Raphson method source code (fortran source code downloadCoded by myself)
2
Planer 8 node solid element full program source code (fortran source code downloadCoded by myself)
3
Planar static frame source code (PDF downloadCoded by myself)
4
Vibration model program for planar frame (PDF downloadCoded by myself)
5
3D static frame source code (PDF downloadCoded by myself)
6
Planar frame stability analysis source code (PDF downloadCoded by myself)
7
Planar FEA source code (PDF downloadCoded by myself)
8
Spatial shell element source code (PDF downloadCoded by myself)
9
Planer 8 node solid element source code (fortran source code downloadCoded by myself)

10

Spatial 8 node solid element source code (PDF downloadCoded by myself)
11
Seismic response of SDOF system with average acceleration method (fortran source code downloadCoded by myself)
12
Nonlinear dynamic time history analysis of multi-degree-of-freedom story model (fortran source code downloadCoded by myself)
13
Simple source code example for 2D EFGM (PDF downloadCoded by myself)
Finite element analysis software application
OpenSEES
1
OpenSees models for a 606 m Mega-tall Building v0.1 RAR downloadZIP Download
2
Examples of NLDKGQ element in OpenSEES RAR downloadZIP Download
3
Multi-layer shell element to simulate shell walls in OpenSEES RAR downloadZIP Download
4
Nonlinear time-history analysis of super-tall building based on OpenSEES PDF downloadPDF Download
5
Nonlinear time-history analysis of super-tall building and large span bridge based on OpenSEES PDF downloadPDF Download
6
Export MSC.Marc model to OpenSees RAR downloadZIP Download
7
Import OpenSees displacement results to MSC.Marc RAR downloadZIP Download
8
Examples of tall buildings with OpenSees RAR downloadZIP Download
MSC.MARC file download MSC.MARC Examples
Some
funning
FE
models

Click the picture to download MSC.MARC model

Earthquake Collapse Simulation of RC Frame .Progressive Collapse Simulation
Earthquake Collapse Simulation of RC Frame

1
Transmit FEA model from SAP2000 to MARC (ANSYS file downloadCoded by myself)
2
MARC Plate with hole (Compare the precision of different elements) (MSC.MARC file downloadModeled by myself)
3
MARC Elastic-plastic steel beam (Basic material nonlinear) (MSC.MARC file downloadModeled by myself)
4
MARC Stability of a slope (Complicated material nonlinearity) (MSC.MARC file downloadModeled by myself)
5
MARC Flat Arch (Complicated geometry nonlinearity) (MSC.MARC file downloadModeled by myself)
6
MARC Contact and remesh (Boundary nonlinearity) (MSC.MARC file downloadModeled by myself)
7
MARC Notched concrete beam (MSC.MARC file downloadModeled by myself)
MSC.MARC file download MSC.MARC User Subroutines
1

Examples of "Theory and design method for progressive collapse prevention of concrete structures"
Figure 6.14~6.16, Figure 6.19~6.20

(MSC.MARC Secondary developmentCoded by myself)
2
Fiber beam element model for reinforced concrete embedded in MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
3
A pushover analysis algorithm based on multiple point constraints (MSC.MARC Secondary developmentCoded by myself)
4
Lu-Qu Plastic hinge hysteresis model embedded in MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
5
Change thread priority in MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
6
Get nodal coordination in MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
7
Batch run MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
8
Kill element according to total strain in MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
9
Kinematics hardening plastic subroutine for MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
10
Isotropic hardening plastic subroutine for MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
11
User defined nonlinear beam subroutine for MSC.MARC (MSC.MARC Secondary developmentCoded by myself)
ANSYS file download ANSYS
1
Transmit FEA model from ANSYS to SAP2000 (ANSYS file downloadCoded by myself)
2
Example for load cases and models combination in ANSYS (ANSYS file downloadCoded by myself)
3
Eigenvalue Bulking Analysis in ANSYS with prestress (ANSYS file downloadCoded by myself)
4
Example of weld initial stress for I steel beam in ANSYS (ANSYS file downloadCoded by myself)
5
Example of geometry nonlinear analysis in ANSYS (ANSYS file downloadCoded by myself)
6
Example of seismic analysis in ANSYS (ANSYS file downloadCoded by myself)
7
Example of tapered Unsymmetrical beam 54 in ANSYS (ANSYS file downloadCoded by myself)
8
Example of modify material between load steps in ANSYS (ANSYS file downloadCoded by myself)
9
Example of building a frame with element nonlinear in ANSYS (ANSYS file downloadCoded by myself)
10
Transmit ANSYS model to MSC.MARC (ANSYS file downloadCoded by myself)
11
Example of FRP confined concrete column in ANSYS (ANSYS file downloadCoded by myself)
12
Analysis of composite materials with ANSYS (ANSYS file downloadBy Qian & Lu)
13
Analysis of box beam with shell elements in ANSYS (ANSYS file downloadCoded by myself)
14
Example for a curved elasto-plastic spacial beam with ANSYS (ANSYS file downloadCoded by myself)
15
Example for thermal stress of a pipe inside soil with ANSYS (ANSYS file downloadCoded by myself)
PPT Files of Presentation
1
2014 Kwang-Hua Forum: GPU-based high-performance computing for urban seismic damage prediction and visualization PDF downloadPDF Download
2
2014 APEC 8th Senior Disaster Management Officials Forum: Scenario Simulation and Engineering Solution for Extreme Disasters PDF downloadPDF Download
Course documents
Finite element analysis for reinforced concrete
0
Textbook "Finite element analysis of concrete structures" (TXT downloadHTM Download)
1
Introduction (PDF downloadPDF Download)
2
Stress & strain analysis (PDF downloadPDF Download)
3
Uniaxial stress-strain models and biaxial strength for concrete (PDF downloadPDF Download)
4
Introduction for ANSYS (PDF downloadPDF Download)
5
Tri-axial strength models for concrete (PDF downloadPDF Download)
6
Nonlinear elastic constitutive models for concrete (PDF downloadPDF Download)
7
Appendix 2: Introduction for THURC3A (PDF downloadPDF Download)
8
Appendix 3: Introduction for RCFER2002 (PDF downloadPDF Download)
9
Elasto-plastic constitutive law for concrete (PDF downloadPDF Download)
10
Finite element models for reinforced concrete (PDF downloadPDF Download)
11
Finite element analysis for fracture in concrete (1) (PDF downloadPDF Download)
12
Finite element analysis for fracture in concrete (2) (PDF downloadPDF Download)
13
Solution method for nonlinear equations (PDF downloadPDF Download)
14
Analysis of concrete with ANSYS Solid 65 (PDF downloadPDF Download)
15
Analysis of concrete with MSC.MARC (RAR downloadRAR Download)
16
Introduction for ANSYS/LS-DYNA (PDF downloadPDF Download)
17
Beam/columnl finite element models for concrete structures (PDF downloadPDF Download)
18
Other numerical methods (PDF downloadPDF Download)
Case study
1
Analysis of a plate with a hole with MSC.MARC (MSC.MARC file downloadTXT Download)
2
Kinematics hardening plastic subroutine for MSC.MARC (rar) (RAR downloadRAR Download)
3
Isotropic hardening plastic subroutine for MSC.MARC (rar) (RAR downloadRAR Download)
4
User defined nonlinear beam subroutine for MSC.MARC (rar) (RAR downloadRAR Download)
5
4-point bending RC beam example for MSC.MARC (RAR downloadRAR Download)
6
9 famous examples of concrete in ANSYS by Yulee@smth (ANSYS file downloadTXT Download)
7
Example for smeared RC model in ANSYS (ANSYS file downloadTXT Download)
8
Example of circumferential reinforced concrete in ANSYS (ANSYS file downloadTXT Download)
9
In-core global matrix assemble and solve module source code (Fortran downloadF90 Download)
10
Nonlinear FEA Iteration module source code (Fortran downloadF90 Download)
11
Nonlinear hyperelastic model for concrete: THURC3A (rar) (RAR downloadRAR Download)
12
Planar RC program of rcfer2002* (RAR downloadRAR Download)
13
Add Drucker Prager Non-associate Plastic Model in MARC* (TXT downloadHTM Download)
14
THUFIBER----Fiber Model for Reinforced Concrete Frames* (TXT downloadHTM Download)
15
Check THUFIBER MatCode File (RAR downloadRAR Download)
16
Nonlinear elastic model for concrete (Jiang JJ's model) (Fortran downloadF90 Download)
17
Theory and latest progress of elasto-plastic analysis of buildings against earthquake file01, file02, file03, file04 (PDF downloadPDF Download)
Catastrophology
1
Introduction for disasters (PDF downloadPDF Download)
2
Disasters in China (PDF downloadPDF Download)
3
Flood (PDF downloadPDF Download)
4
Tsunami (PDF downloadPDF Download)
5
Geologic Disaster 01: Introduction and volcano (PDF downloadPDF Download)
6
Geologic Disaster 02: Slope geologic disaster (PDF downloadPDF Download)
7
Geologic Disaster 03: Land slide (PDF downloadPDF Download)
8
Geologic Disaster 04: Rock fall (PDF downloadPDF Download)
9
Geologic Disaster 05: Mud and stone flow (PDF downloadPDF Download)
10
Geologic Disaster 06: Settlement and other geologic disasters (PDF downloadPDF Download)
11
Wind Disaster 01: Introduction and Typhoon (PDF downloadPDF Download)
12
Wind Disaster 02: Static wind load (PDF downloadPDF Download)
13
Wind Disaster 03: Along wind vibraiton of structures (PDF downloadPDF Download)
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Wind Disaster 04: Across wind vibraiton of structures (PDF downloadPDF Download)
15
Wind Disaster 05: Wind tunnel test and CFD (PDF downloadPDF Download)
16
Wind Disaster 06: Methods to resist wind disaster (PDF downloadPDF Download)
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Earthquake Loss Prediction for Buildings  
Others
1
Seismid Damage Investigation Powered by Smart Phone EqGIS  
2
Simulate Artificial Ground Motion  
3
A small code to draw hysteretic_curve animation  
4
Earthquake Loss Prediction for Buildings  
5
Far Field Ground Motion Record in ATC-63 Report From PEER
6
Let MSC.MARC Support Fortran 90 Format User Subroutine (MSC.MARC file downloadCode by myself)
8
Find maximal flow capacity with Ford & Fulkerson arithmetic (Fortran downloadF90 Download)
9
Find shortest path with Dijkstra arithmetic (Fortran downloadF90 Download)
10
A Bridge design game  
11
T-shirt for the FEA board &smth  
12
Example for ANN in Matlab Direct_Shear_net.mat  

Our Lab

Collapse Prevention Committee