DispBeamColumn2d.h

// -*-c++-*-
//----------------------------------------------------------------------------
//  XC program; finite element analysis code
//  for structural analysis and design.
//
//  Copyright (C)  Luis C. Pérez Tato
//
//  This program derives from OpenSees <http://opensees.berkeley.edu>
//  developed by the  «Pacific earthquake engineering research center».
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//  Except for the restrictions that may arise from the copyright
//  of the original program (see copyright_opensees.txt)
//  XC is free software: you can redistribute it and/or modify
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//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details. 
//
//
// You should have received a copy of the GNU General Public License 
// along with this program.
// If not, see <http://www.gnu.org/licenses/>.
//----------------------------------------------------------------------------
/* ****************************************************************** **
**    OpenSees - Open System for Earthquake Engineering Simulation    **
**          Pacific Earthquake Engineering Research Center            **
**                                                                    **
**                                                                    **
** (C) Copyright 1999, The Regents of the University of California    **
** All Rights Reserved.                                               **
**                                                                    **
** Commercial use of this program without express permission of the   **
** University of California, Berkeley, is strictly prohibited.  See   **
** file 'COPYRIGHT'  in main directory for information on usage and   **
** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
**                                                                    **
** Developed by:                                                      **
**   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
**   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
**   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
**                                                                    **
** ****************************************************************** */
                                                                        
// $Revision: 1.14 $
// $Date: 2003/03/04 00:48:14 $
// $Source: /usr/local/cvs/OpenSees/SRC/element/dispBeamColumn/DispBeamColumn2d.h,v $

// Written: MHS
// Created: Feb 2001
//
// Description: This file contains the class definition for DispBeamColumn2d.
// The element displacement field gives rise to constant axial strain and
// linear curvature.

#ifndef DispBeamColumn2d_h
#define DispBeamColumn2d_h

#include "DispBeamColumn2dBase.h"
#include "domain/mesh/element/utils/fvectors/FVectorBeamColumn2d.h"
#include "utility/matrix/Matrix.h"
#include "utility/matrix/Vector.h"

namespace XC {

//
class DispBeamColumn2d: public DispBeamColumn2dBase
  {
  private:
    const Matrix &getInitialBasicStiff(void) const;
    void getBasicStiff(Matrix &kb, int initial = 0) const;
    //static GaussQuadRule1d01 quadRule;
  public:
    DispBeamColumn2d(int tag= 0);
    DispBeamColumn2d(int tag, int nd1, int nd2, int numSections, const std::vector<PrismaticBarCrossSection *> &s, const CrdTransf2d &coordTransf, const BeamIntegration &bi, double rho = 0.0);
    DispBeamColumn2d(int tag, int numSec, const Material *theSection, const CrdTransf *coordTransf, const BeamIntegration *bi);
    Element *getCopy(void) const;

    // public methods to obtain stiffness, mass, damping and residual information    
    int update(void);
    const Matrix &getTangentStiff(void) const;
    const Matrix &getInitialStiff(void) const;

    const Vector &getResistingForce(void) const;

    Response *setResponse(const std::vector<std::string> &argv, Information &eleInfo);
    int getResponse(int responseID, Information &eleInfo);

    // AddingSensitivity:BEGIN //////////////////////////////////////////
    int            setParameter(const std::vector<std::string> &argv, Parameter &param);
    int            updateParameter(int parameterID, Information &info);
    int            activateParameter(int parameterID);
    const Vector & getResistingForceSensitivity(int gradNumber);
    const Matrix & getKiSensitivity(int gradNumber);
    const Matrix & getMassSensitivity(int gradNumber);
    int            commitSensitivity(int gradNumber, int numGrads);
    // AddingSensitivity:END ///////////////////////////////////////////
};
} // end of XC namespace

#endif