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[–] Solstiare 0 points 1 point (+1|-0) ago 

There are multi axis versions of op's vidya. This version is expensive, hard to scale up to building size.

The ones I see on most new skyscrapers are tendon based, that is an actuator is connected to a tendon-cable that runs in sets down the sides of a tower into the foundation. They are differentialy tensioned (spelling) as the wind/ground moves. Shorter (<5-6 floors) buildings go for the "out-muscle it" approach, using k-rails, shear diaphragms (horizontal plane) and shear panels/walls (vertical plane) to resist earthquakes/high wind loading. these are usualy engineered up to a 9.0 quake (I might be off on the magnitude).

 

Source: I work in commercial/industrial construction, and used to work in residential construction.

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[–] Solstiare 0 points 1 point (+1|-0) ago  (edited ago)

Real world version of OP's link These are fock'n expensive. Basically a high end hydraulic ram with a pile of test reports and certifications. Failure dumps oil everywhere but really easy to replace. More would be mounted in walls that run perpendicular to the ones shown. Pros for their use are that it's a passive system with no controllers/sensors required, and more or less off the shelf.

Isolator tendon, in simplest terms these are attached to a linear actuator. They tension on the side of the building that is opposite of the building's movement. Also used in suspension bridges. In a building, a failed tendon is easy to replace; it's a cable hanging down a pipe. The collateral damage from tendon failure is not.These are somewhat common because structural cables are already everywhere, including an active system on the vertical axis of a structure is relatively simple.

Tuned Mass Dampener The primary issue with a TMD system is you have (in the picture linked), 14000 extra TONS that you have to engineer the building to carry. These come in active and passive versions. Passive ones are usually a water tank. Inexpensive, highly effective, but still very heavy.

Different types of diagonal bracing including a k-brace/rail. These are used to brace the structure against unwanted movement. A real world example. Fixed bracing and the shearwalls linked below are designed to out muscle wind/seismic forces. They are only designed to resist forces up to a point (9.0 quake IIRC) because past that you would be trying to engineer a structure to resist a nuke. Almost cheap enough for a jew. Will probably require painting. Blocks the view from your managers office. Fuck him/her.

Residential shearwall: 1 2

Roof shear (floor is sim) diaphragm

Most (all) residential buildings in California require shear reinforcement by code. Commercial and industrial structures above a certain size will incorporate one or more method of mitigating unwanted lateral movement, including some methods I haven't covered. Below that size, the out-muscle-it approach is typically taken. What is ultimately used is a function of size of the structure, and it's intended use. A major bridge or a hospital will be over-engineered to sustain functionality because of the structure's critical function. Other structures are designed so people don't die, functionality of the structure after the event is secondary.