Module "Horizontal load distribution on shear walls"

Module Horizontal load distribution on shear walls

The input is divided into:

  • input of the position and quantity of acting horizontal forces
  • input of the floor polygon
  • input of the shear walls
  • calculation options

The quantity of horizontal forces can be specified by entering Hx and Hy in [kN]. The position of the forces can be either user-defined (Hx along the line of action in yHx and Hy along the line of action in xHy) or specified at the center of mass. By selecting "at center of mass", the position of the forces will be determined from the polygon of floor.

Input of the horizontal acting forces

Input of the floor polygon

The floor is defined by entering the coordinates of the corner points. The sequence of the points must be counterclockwise and there must be no openings. The origin of the draft is shown on the upper-right corner of the window.

  • By clicking , a new corner point is created.
  • By clicking , the selected point will be deleted.
  • By clicking , the selected point can be moved up in the sequence.
  • By clicking , the selected point can be moved down in the sequence.

Floor plan with shear walls, floor polygon and acting forces

The walls can be defined using the following table. The selection of the cross-section, and thereby of the producer, is in the current calculation neglected since the stiffnesses are calculated in proportion to the wall length. The position of the wall can be defined either by specifying the reference point (in the draft above, the point is set in the lower left corner at the φ = 0°; xref and yref) or by entering the center of mass (xC and yC), as well as the angle of rotation φ.

Input of shear walls

  • By clicking , a new wall can be created.
  • By clicking , the selected wall will be deleted.

In the current version, the stiffness of the wall systems c is calculated proportional to the wall length (c ∼ ℓ exp). The exponent exp can be specified here.

Calculation options

Stiffness center of walls and center of mass

The output is given separately for the acting forces Hx and Hy and the combination Hx + Hy. The output comprises the moment, resulting from the load eccentricity, as well as the forces acting on each wall defined with their components x and y (Fx and Fy) and also the resulting force F at the angle αF. As a control, the sum of the forces in x and y direction, as well as the sum of the moments are verified as well.

Forces according to Hx and Hy

A graphic representation of the results is also divided into Hx, Hy and Hx + Hy and can be seen in the lower right corner of the window.

Results according to Hx and Hy

  • en/clt/hotspot/software/cltdesigner/manual/modul_horizontal_force_distribution_on_shear_walls.txt
  • Last modified: 2020/03/26 11:44
  • by Alexandra Thiel