(57) Abstract:Usage: the supports of buildings and structures. The inventive between the Foundation and advancement design posted by the elastic element to give three coordinate axes, filled with damping fluid. The elastic element is designed as a welded bellows corrugated in the radial and circumferential directions of the main membrane and an additional membrane. At one extreme the main membranes made of calibrated holes, it is on the outer contour and the hard center with the formation of a sealed cavity connected to an additional membrane. The additional stiffness of the membrane in the radial and axial directions is less in relation to the main membrane. 2 Il. The invention relates to support structures earthquake-resistant buildings, structures and can be used as absorbers in facilities operating with high vibration and shock acceleration: on road and rail transport, power plants and nuclear reactors, to install precision equipment, as damping devices in the stretch of high-rise structures.The purpose of the invention oprosti metoikoi support; in Fig. 2 - strain state of the aseismic support during the earthquake.Aseismic bearing contains an elastic element 1 with the malleability of the three coordinate axes, made in the form of welded bellows corrugated in the radial and circumferential directions of the membranes 2, installed with clearances through the annular distancer 3 outer diameters of the membranes 2 and the o-ring bonnet space 4 on the perimeters of the Central hole 5 of the membranes 2, the extreme of which is the top and bottom are made without the Central hole 5. At one extreme of the membrane 2, for example, the upper made of calibrated holes 6, with the same external contour and the hard center with the formation of a sealed cavity connected to an additional membrane 7, made with less stiffness in the radial and axial directions relative to the main membranes. With the elastic member 1 in the center is rigidly connected to the vertical elements of the seal support 8 and 9, made in the form of pipe ends and the slots 10, the free ends of which are embedded in the Foundation II and advancement design structures 12, made for example of concrete.In the upper part of a corrugated diaphragm 7 has a filling nozzle 13 at the bottom of the corrugated memb is, for example polymethylsiloxane fluid type PMS, kerosene or fuel oil. In addition, to improve the damping properties of seismic supports in horizontal directions corrugated membrane 2 may be made of a material with high dissipation, and intermembrane cavity can be partially filled by an elastic-plastic material such as polyurethane SKU-6 with a through vertical and horizontal channels for damping fluid (not shown).The elastic element 1 may be made in the form of welded bellows corrugated in the radial and circumferential directions of the membrane, the United pairs of outer and inner flange (not shown), the profile of the corrugation which is chosen from the condition that the deformation of the elastic element 1 surface adjacent membranes must be paired. In this case, the annular distancer 3 and 4 are not required.The stiffness of the elastic element 1 aseismic bearing in the axial and radial directions is determined by the modulus of elasticity of the material, the outer and inner radii, the thickness of the membranes and the height of the corrugation in the radial and circumferential directions of the membranes 2 and may be provided in a wide range.Additional membrane 7 so the thin ribbon in the form of a shell of revolution containing concentric cylindrical sections with corrugations in the circumferential direction with the end ring section with a corrugation in the circumferential direction in the upper part of the casing 7, the outer annular flange and a flat butt in the lower part of the inner cylindrical surface. Additional membrane outer flange welded to the top of the membrane 2 and the lower planar side to the upper sealing element support 8 and the hard center of the top of the membrane 2. In the case of the proposed design of earthquake-resistant support as precision dampers for installation vasotocin devices with a small weight on the objects, such as inertial navigation systems, instead of the fluid 15 as damping medium, you can use the air, and as the material of the membrane 2 to use the high precision of the dispersion-hardening alloy type SHNUR-VI with a high level of elastic properties (modulusor1200 MPa, q Q 60000 - 70000). In this case, the design supports simplified by eliminating additional membrane 7.Seismological support works as follows.Dynamic fluctuations of the Foundation of the 11 facilities with fixed therein by a vertical sealing element 9 is of the axes in relation to advancements construction 12 and the vertical sealing element 8 when the earthquake or traffic impacts will lead to deformation and mutual displacement of the centers of the membranes 2 of the elastic element 1 along the three coordinate axes, the weakening of the shock pulse loads due to low contact stiffness transmitted from the base 11 to advancements construction 12, reduced contact stresses, displacement of the damping fluid 15 in the intermembrane cavity between the membranes 2 in the radial direction and from the intermembrane cavity in the cavity between the upper membrane 2 and the additional membrane 7 through an orifice 6 (the direction of movement of the damping medium in Fig. 1 indicated by arrows for the case of compression of the elastic element 1) that will lead to the emergence damping forces and moments along the three coordinate axes. The effectiveness of damping on the vertical axis of support increases with decreasing diameter and number of calibrated holes 6 in the upper corrugated membrane 2. High-frequency components of the dynamic fluctuations of the Foundation 11 due to the large inertia of the structures are smoothed out by the elastic element. 1. As an example in Fig. 2 shows the deformed aseismic bearing in the direction of the action of dynamic forces from the side of the sealing element 9 in the base 11 in the plane of the drawing to the left upwards.Aseismic bearing functional and upside down, and educstional reliability and durability in comparison with the known seismic supports and shock absorbers. Aseismic bearing containing placed between the Foundation and advancement design of buildings fixed vertical elements of the seal support rigidly connected with them elastic element with the malleability of the three coordinate axes, filled with damping fluid, characterized in that, with the aim of simplifying design support and enhance the seismic resistance of structures, the elastic element is designed as a welded bellows corrugated in the radial and circumferential directions of the main membrane and an additional membrane, the outermost of the major membranes made with hard centers connected with a vertical sealing elements, one at the main membranes made of calibrated holes, it is on the outer contour and the hard center with the formation of a sealed cavity connected to an additional membrane is made with less stiffness in the radial and axial directions relative to the main membranes.
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
FIELD: building, particularly frame structures for civil and industrial buildings to be erected mainly on sinking territories or territories to be developed.
SUBSTANCE: method for connecting eccentrically loaded column with foundation by fixing thereof in orifice formed in foundation involves forming composite multi-stepped foundation having central, medium and outer steps and through wedge-like orifices made in each step, wherein orifices taper downwards with cone angle of 1/10 to 1/5 (5.7 - 11.3o) and each step and lower column end are also wedge-like and have cone angles of 1/12 - 1/6 (4.8 - 9.5o), steps are inserted one into another and wedge-like column end extends into central orifice of central foundation step; tightly installing pair of force mounting wedges in gap between wedge-like column end and foundation, wherein each mounting wedge comprises two levers pivotally connected by the first ends to change cone angle of wedge and to regulate column verticality; securing jack communicating with hydraulic pulsing pumping plant to one lever; filling gap between foundation steps and gap between wedge-like column end and foundation with solid powder material, particularly with crushed granite with particle dimensions of 5 - 10 mm; covering upper part of central orifice of central step with concrete plug of 40 - 50 mm thickness along column perimeter; arranging centering pads on concrete plug symmetrically about eccentrically loaded column; installing pair of jacks on centering pads; securing mounting device formed as split terminal including L-shaper rests pressed to column and connected one to another by means of two bars and pins with stressing nuts, wherein jack pistons cooperate with L-shaped rests from below to maintain design position of eccentrically loaded column and to solidify powder material in gap between column tip and foundation orifice wall.
EFFECT: provision of straightening column position relative foundation without connection unit damage; increased reliability of anchoring eccentrically loaded column in foundation.
FIELD: anti-seismic protective units for buildings and structures.
SUBSTANCE: proposed protective unit includes many modules laying in one plane at contact with each other; each module consists of two identical parts made from rigid plastic material and connected in center by means of silent-block; used automobile tire is placed between them, thus forming deformable elastic chamber filled with granule-like elements made from plastic material; granule-like elements possess hydraulic properties.
EFFECT: possibility of weakening, dissipating and dampening seismic wave.
2 cl, 4 dwg
FIELD: construction, particularly to construct buildings and structures in earthquake zones or special-purpose objects.
SUBSTANCE: multistory earthquake resistant building includes upper spatially stiff stories defined by columns, crossbars, floor panels and well panels; ground or the first floor formed of kinematical posts with rounded upper and lower edges so that posts may perform stable swinging during earthquake along groves. The grooves are formed in upper framing members created as a part of floor panel or ground floor and in lower framing members made as a part of foundation bearers. Rounded post edges have variable curvature acting as lockable and releasable links and limiting large horizontal movement along with retaining post capacity to reduce seismic forces affecting on buildings and structures during earthquake. Kinematical posts are monolithic or composed of several parts without embedded members. Horizontal cross-section of each kinematical post define star with 3, 4, 5, 6, 7, 8, 9 … n points, wherein unrestricted number n of star points create stiffening ribs.
EFFECT: increased efficiency, strength and stability of the support under broad earthquake frequency spectrum.
FIELD: construction, particularly to erect buildings and building structures on permafrost ground, which may thaw during building or building structure usage.
SUBSTANCE: method involves digging-out pit; filling the pit with nonfrost-susceptible material; introducing reinforcing members in the nonfrost-susceptible material and mounting foundations. The reinforcing member is made as rigid reinforced concrete panel arranged in compacted nonfrost-susceptible material layer. Distance between foundation bottom and panel top is selected to provide uniform load transmission from the foundations to the panel. Upper panel surface is formed of heat-insulation material and sloped parts inclined from panel center to panel periphery are created. Panel rigidity is related with thawing permafrost ground deformation extent.
EFFECT: reduced building deformation caused by non-uniform deformation of thawing permafrost ground.
FIELD: foundations for special purposes, particularly foundation platforms connected to tanks.
SUBSTANCE: reinforced concrete beams or trusses are installed between reinforced concrete panels of upper and lower belts of three-dimensional platform. Reinforced concrete beams or trusses have inclined upper face and are connected one to another in center by monolithic rigid core. The reinforced concrete panels have trapezoid or segmented shape in plane. Reinforced concrete beams or trusses with key connections are located in parallel between reinforced concrete panels of upper and lower belts. Tank walls and coverings have arched structure shaped as prismatic polyhedron inscribed in cylindrical surface defined by square parabola or another curve with generatrices parallel to beams or trusses of three-dimensional foundation platform.
EFFECT: increased structural efficiency due to increased reliability of three-dimensional foundation platform, reduced metal consumption and labor inputs.
2 cl, 9 dwg
FIELD: building, particularly pile foundations including floating piles.
SUBSTANCE: method involves injecting hardening mortar via injectors driven in ground in area between the piles and at pile ends for depth exceeding 1-2.5 m, wherein the injectors are spaced 1.5-2.0 meters apart. The hardening mortar pressure gradually increases. The hardening mortar is injected up to creation of hydraulic fracture cavities having 1.5-2.0 m radii around each injector. Then the injection operation is preformed under constant pressure of 2-10 atm to consolidate and reinforce ground, compress the piles to multiply load-bearing capacity thereof by 1.5-2 times.
EFFECT: increased load-bearing pile capacity due to increased side friction and head resistance.
3 cl, 1 dwg
FIELD: tire utilization and use in building, particularly to erect earthquake resistant foundations for low buildings, to construct road beds in marshlands and to erect mudflow control structures of used tires.
SUBSTANCE: method involves laying tires one upon another in several layers so that tread tire parts are in close contact with each other; connecting the tires by inserting fastening members in tire interiors. Tires are grouped in the first tire layer and then perforated strips are installed in interior of each tire. Number of strips depends of number of adjacent tires. Perforated strip orifices are spaced apart a distance corresponding to tire layer thickness. Then adjacent tires are pulled together by means of fastening pins having flat non-threaded parts. The pins are located from top and bottom of tire sides. Then next tire layers are laid and connected in the same way to provide stack having necessary height. Spaces defined in tire stacks and between the tires are filled with filler.
EFFECT: increased reliability of tire connection.
FIELD: building equipment, particularly foundations for sinking or earthquake territories.
SUBSTANCE: method involves determining active vibration zone and surface length wave; creating vertical screen between active vibration zone and building or building structure to be protected as at least one well row, wherein the wells are drilled for depth equal to at least 0.5 of surface wave length and straight line passing from any active vibration zone point to extreme points of vertical screen does not cross building or building structure foundation; creating additional screen under building or building structure base as a number of wells drilled in accordance with uniform grid pattern for length of not more than vertical screen depth. Wells forming vertical and additional screen are treated with consolidating solution.
EFFECT: increased efficiency of building or building structure protection against vibrations or seismic inflexibility of building and building structure base ground.
FIELD: construction, particularly to erect heavy structures on compressible ground in seismic zones.
SUBSTANCE: method involves driving piles; connecting members formed as inversed cups to pile heads; connecting pile heads with slab-like raft. In the case of foundation construction in seismic zones plies having different lengths are used. Long piles are arranged along longitudinal and transversal axes of load-bearing walls. Short piles are driven between main ones. Reinforcement bars of short piles are introduced in raft body for length equal to bolting length necessary to create rigid joints after raft concreting. Before raft concreting members made as inverted cups are put on long pile heads to create gap with thickness equal to half of immersion depth admissible for structural layout of building under construction. Foamed polystyrene layer having thickness equal to gap thickness is formed on upper ends of long piles.
EFFECT: extended technological capabilities due to increased building structure load transferred to structure foundation and be taken by slab and decreased structure immersion.