Earthquake resistant building construction

 

(57) Abstract:

The purpose of the invention is improving the earthquake resistance of buildings by reducing the displacement of the main Foundation by converting part of the seismic energy. Earthquake resistant building construction includes a main base, movable supporting massive foundations, which are located outside the main on its Central major axis, simply supported on the ground through the bearings and connected with the main Foundation of the rigid links. 2 Il.

The invention relates to the construction, in particular for earthquake-resistant buildings, structures.

Known earthquake resistant building, structure, in which advancementof part supported on the base through the damping device, partially absorbing seismic effects due to inertia advancements parts [1]

A disadvantage of the known buildings, structures lies in the lack of effectiveness of damping devices in paying energy seismic shock waves, and that the seismic energy is not used to reduce the adverse impacts on structures.

The closest to this invention is earthquake-proof building, structure, VK is placed on the topside of the Foundation between rigidly attached to the last vertical support and connected with the bearing elements advancements part, supported by a vertical link attached to the overlapping and interacting with a movable inertial mass. Vertical connection is made in the form of a pair of levers fixed hinge to overlap with the two sides of the movable inertial mass and connected to the latter by means of horizontal links and advancement part by cross-ties attached at upper ends to the nodes connecting the vertical and horizontal load-bearing elements advancements part and equipped with energy-absorbing device, and the vertical supports are rigid. Reduced horizontal displacements advancements part is achieved through the use of seismic energy [2]

The main drawback of this building, construction lies in the fact that the energy of the seismic action is directed not to cause deformation advancements parts, and its consequence. In addition, the disadvantage is that the device only works in one direction, i.e., does not increase the seismic stability for an arbitrary direction of horizontal seismic effects, including the effect of causing the rotation of the Foundation around the vertical axis.

The reason for deformirovny will be prevented (reduced) displacement of the Foundation, it thus will be reduced and the consequences, i.e., deformation advancement part.

The problem solved by the invention is the improvement of seismic stability by reducing the displacement of the Foundation by converting part of the seismic energy.

The solution is achieved by the fact that earthquake resistant building construction including Foundation, advancement part and a movable inertial mass, the latter is in the form supported on the ground through the bearings supporting the movable foundations placed around the main Foundation of its principal axes and United with him through hard links.

The essence of this invention lies in the fact that part of the energy of the seismic action is used to prevent (reduce) the seismic displacement of the Foundation. To implement this idea are movable auxiliary solid foundations on rolling bearings connected by rigid links with the main Foundation; the current rollback, auxiliary bases opposite to the direction of the seismic action. Through the connecting device supporting foundations have on the basic Foundation of the action, the opposite direction of the Foundation, and protected advancementof part.

In Fig.1 shows the plan of the buildings, structures, and Fig.2 section a-a in Fig.1.

The described building, structure contains the basic Foundation 1, protected from seismic activity, the auxiliary movable solid foundations 2, representing the inertial mass supported on bearings 3 (for example, ball type) and are associated with the main Foundation 1 rigid links 4.

In the case of a rectangular main basement 1 auxiliary massive movable bases 2 are located respectively on the axes of symmetry of the main basement 1 and are linked by rigid links.

In the case of arbitrary configuration of the main Foundation, supporting massive movable bases are along the lines of the Central principal axes x0, y0the configuration of the Foundation. Mass of auxiliary bases are chosen proportional to the moments of inertia of the main Foundation relative to these axes.

Works anti-seismic building as follows.

Under seismic excitation core 1 and a massive movable auxiliary foundations 2 in the absence of links between them selenie foundations 2 rolled would be back.

Supporting the massive foundations 2 have a high mobility due to its mass and supports rolling 3 they are going backwards, pulling through hard links 4 basic Foundation 1, forcing it to return to its original position or to significantly reduce its linear and angular displacement around the vertical axis.

Location collectively supporting the massive foundations 2 and their relationships 4 with the main Foundation of 1 allows the device to operate in either direction of the seismic action, including resistance to rotation of the main basement 1 around the vertical axis.

The use of this invention will improve the earthquake resistance of the building by reducing the displacement of the main Foundation.

Earthquake resistant building construction including Foundation, advancement part and a movable inertial mass, wherein the inertial mass is made in the form supported on the ground through the bearings supporting foundations placed around the main Foundation of its principal axes and United with him through hard links.

 

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FIELD: building, particularly for erecting pile-plate foundations for industrial buildings and structures, for instance for main buildings of heat power plants.

SUBSTANCE: method involves arranging drilled cast-in-place pile, grouting plate grillage and installing antivibration mounts. Anchorage reinforcement is placed in pile heads and arranged along marked building axes. Anchorage reinforcement is then grouted and resilient antivibration mounts are installed at pile heads. Resilient antivibration mounts are fixed in plane on anchorage reinforcement with the use of fasteners so that antivibration mounts may perform restricted movement. Installed on antivibration mounts is rigid metal foundation frame of upper building in which anchoring reinforcement for securing skeleton of building to be erected is installed. Reinforcement rods and supply lines are inserted in process orifices formed in foundation frame beams and frame is grouted to form panel grillage.

EFFECT: reduced work content, increased simplicity and speed of bearing grillage frame erection; improved building stability.

9 cl, 5 dwg

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