THUFIBER----Fiber Model for Reinforced Concrete Frames

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Fiber Model Program for Reinforced Concrete Frame. For the failure simulation of reinforced concrete frame due to flexural.

Computational results show good agreement with the test, as well as outstanding nonlinear capacity

Latest Version 27 is Uploaded! For MSC.MARC 2005 r2!

Program download(Obj file) File;

THUFIBER STEP BY STEP TUTORIAL!

THUFIBER for Reinforced Concrete Beam STEP by STEP!

Source Code: Fiber beam element model for reinforced concrete embedded in MSC.MARC

Check MatCode File of THUFIBER with Graphic Interface

New THUFIBER Preprocess GUI program

Install guide

  1. Install MSC.MARC 200r2
  2. SAP2MARC can transform SAP 2000 v9+ model to MARC model
  3. Run thufiber_2005r2_027 -j tall_building_si_job1
  4. matcode.txt is the section information file

Remarks

  1. This program is free for education and research purpose. If you have used this program in your research, please mention it in the reference.
  2. The maximum project size of this program is 2000 elements. If you need a larger size version, please email to us: E-mail:luxinzheng@sina.com.
  3. If you have found any problem in the program, please notice us.

Some Examples (Click the picture to download the models)

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

Paper download

Simulation for the collapse of concrete tall building under static and dynamic load,
Earthquake Research in Shanxi, 126(2), 2006, 7-11.

Abstract: A fiber model for reinforced concrete (RC) structures (referred as THUFIBER) is developed, which is based on the general-purpose finite element package of MSC.Marc that carries significant capacity of solving nonlinear problems. In this model, the concrete and the reinforcement inside the structural elements are modeled respectively with different fibers so that the cyclic behavior of material can be properly simulated. Pushover and dynamic time-history analysis for a RC frame-tall building are carried out to illustrate the capacity of the proposed model.

Key words: fiber model, concrete, seismic, collapse, push-over, finite element

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Study on failure mechanism and seismic performance of passive control RC frame against earthquakes,
Earthquake Resistant Engineering and Retrofitting, 28(1), 2006. 18-24.

ABSTRACT: To achieve better structural performance during earthquakes and to minimize rehabilitation and strengthening costs after seismic event is the main objective of the earthquake resistant design. With the invention of the high performance materials and their introduction to the structures, the failure mechanism and seismic performance, especially the residential deformation, can be improved seismic. The Passive Control RC Frame (PF) reinforced with high strength reinforcements in columns are investigated in this paper with nonlinear time history analysis method. It is found that the high strength reinforcements not only provides the RC frame more resistance against lateral earthquake loadings but also reduced the residual displacements after going through dynamic event. It is also seen that the use of high performance steel in columns can prevented the critical column base sections from yielding and totally eliminated the possibility of soft story failure mechanism. Moreover the strengthening and rehabilitation demands reduced and required only at the beam end sections. With the absence of total collapse mechanism it is envisaged that the use of PF would yield safer structures and the potential danger of complete demolition can be reduced.

Keywords: earthquakes, high performance steel, passive control RC frame, failure mechanism, residual deformation

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Preprocess interface
Ductility of reinforced concrete column under different axial load
Preprocess interface Ductility of reinforced concrete column under different axial load
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=7s
t=8s
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=9s
t=10s
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=11s
t=12s
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=13s
t=14s
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=15s
t=16s
Collapse simulation for a reinforced concrete frame under seismic load
Collapse simulation for a reinforced concrete frame under seismic load
t=18s
t=20s
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