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Beam2dPointLoad.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.4 $
00022 // $Date: 2006/09/05 23:08:00 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/domain/load/Beam2dPointLoad.h,v $
00024                                                                         
00025 #ifndef Beam2dPointLoad_h
00026 #define Beam2dPointLoad_h
00027 
00028 // Written: fmk 
00029 
00030 // Purpose: This file contains the class definition for Beam2dPointLoad.
00031 
00032 #include <ElementalLoad.h>
00033 
00034 class Information;
00035 
00036 class Beam2dPointLoad : public ElementalLoad
00037 {
00038   public:
00039     Beam2dPointLoad(int tag, double Pt, double x,
00040                     const ID &theElementTags, double Pa = 0.0);
00041     Beam2dPointLoad();    
00042     ~Beam2dPointLoad();
00043 
00044     const Vector &getData(int &type, double loadFactor);
00045 
00046     int sendSelf(int commitTag, Channel &theChannel);  
00047     int recvSelf(int commitTag, Channel &theChannel,  FEM_ObjectBroker &theBroker);
00048     void Print(OPS_Stream &s, int flag =0);       
00049 
00050     int setParameter(const char **argv, int argc, Parameter &param);
00051     int updateParameter(int parameterID, Information &info);
00052     int activateParameter(int paramID);
00053 
00054     const Vector &getSensitivityData(int gradNumber);
00055 
00056   protected:
00057         
00058   private:
00059     double Ptrans;     // magnitude of the transverse load
00060     double Paxial;     // magnitude of the axial load
00061     double x;     // relative distance (x/L) along length from end 1 of element
00062     static Vector data;
00063 
00064     int parameterID;
00065 };
00066 
00067 #endif
00068

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