LAVA designs the entire building. The reactions can be found for each element listed below or you can refer to the Export Reactions to get them automatically.
You can also find the reactions in the Report as shown below.
Bearing Wall
The bearing walls are gravity loaded, and the loads are shown in the Report for each bearing wall. The values are all unfactored loads.
.png "image(312).png")
The bearing walls can be located in the Report.
.png "image(313).png")
.png "image(311).png")
Beams
The beams carry the loads into the vertical supports. In the calculation report, ‘'Vertical Support Determination’, the reactions of beams are listed together with the pertinent load combinations and duration factors. The foundation can be sized accordingly. For loads with short durations, allowable soil bearing can usually be increased by 1/3.
.png "image(316).png")
For unfactored reaction forces, please go to ‘Sizing’ tab, and refer to the load summary at the bottom. There are two blocks of data: first block is a summary of loads applied to this beam, and the second block is a summary of reaction loads, all unfactored.
Vertical reaction forces are marked with Z.
Forces marked with ‘0’ are the forces on the top/left posts, and forces marked with ‘1’ are the forces on the bottom/right posts.
.png "image(320).png")
Shear Walls
The shear walls are lateral force (wind or seismic) loaded. In the calculation report, ‘Post Check’, the reactions of shear walls’ end posts are listed with pertinent load combinations. Please see Pmax values in the screenshot below. The load combinations are all with wind or seismic forces, therefore the allowable soil bearing can usually be increased by 1/3. Please see Bearing Walls sections for reactions due to vertical (gravity) loads.
.png "image(315).png")
For unfactored reaction forces, please go to ‘Sizing’ tab, and refer to the load summary at the bottom. There are three blocks of data: first block is wall self-weight, the second block is a summary of loads applied to this shear wall, and the third block is a summary of reaction loads, all unfactored, and high-lighted below.
Lateral reaction forces are marked with X for forces in plan-x direction, or marked with Y for forces in plan-y direction. Vertical reaction forces are marked with Z.
Vertical forces marked with ‘_OT’ are the forces generated by the accumulated lateral force applied on this level. Vertical forces with ‘_OT’ are the forces generated on the level above. The two values must be combined to obtain the total vertical forces.
Forces marked with ‘0’ are the forces on the top/left posts, and forces marked with ‘1’ are the forces on the bottom/right posts.
.png "image(321).png")
Please see the diagram below for reactions of a ground level shear wall due to wind force W(+).
.png "image(319).png")
If W(+) force governs, you can size the foundation for anchorage with Z0_W(+) + Z0_W(+)_OT on the left, and for compression with Z1_W(+) + Z1_W(+)_OT on the right.