CALCULATION OF STATICALLY INDETERMINATE STRUCTURES Aleksey Shirko, e-mail: a_shirko@tut.by
The application allows you to determine the constraint reactions, build diagrams of the normal forces N, shear forces Q and bending moments M for beams and frames with any number of sections and degree of static indefinability. Reactions identified by a capital letter X. Indexes of reactions, chosen arbitrarily, but you should set the reactions X[1], X[2] and X[3] so that the structure has been kinematically unchanged. The application calculates the deformation (displacements) of the structure in millimeters and displays the displacements of nodes in the horizontal and vertical. It is also possible to calculate the displacement of any point of the structure. In the program has the ability to set the stiffness of each section frame (beams) EI[i]
Example of Table input data and boundary conditions shown in the figure.
Number of sections frame (beams) =
Table Input data
The boundary conditions on the end of the last frame (beams) section Fx= Fy= M=
Units and Options
Units of length mmcmm
Units of force NkN
Elasticity modulus E =PaMPaGPa
Cross-section inertia moment I =mm^4cm^4m^4
Show supports
Show reactions
Constraint reactions
Settings of loading scheme
Scale loads display
Frequency distribution of q
Calculation displacements in section 12345678 in coordinate
Settings of diagrams
Scale of M, Q, N diagrams
Frequency of M, Q, N diagrams hatching
Scale of displacements diagram
Number of digits after the decimal point 0123456
