Foundation

FIELD: construction.

SUBSTANCE: foundation comprises artificial bed with curvilinear surface, bearing elements and shell arranged on bed. Bearing elements are arranged in the form of radial and circular tapes for shells with positive Gauss curvature or transverse and longitudinal tapes for shells with zero Gauss curvature, forming meshy shell and laid through gaskets made of two layers of material, which slide relative to each other, onto concrete surface formed on curvilinear surface of artificial bed arranged in pit and inverted upwards with its convexity. Radial or transverse tapes are fixed by their edges to support contour in the form of support ring or a system of cross beams, which is deepened into natural bed, and gasket of elastic material is located between concrete of shell and support contour.

EFFECT: reduced settling of foundation, lower material intensity, provision of efficient and reliable protection of above-foundation structure.

3 dwg

 

The invention relates to the construction involves the installation of foundations-shells for buildings and structures.

The Foundation contains synthetic base with a curved surface which is convex upward, the system of load-bearing tapes reticulated shells, laid on a concrete surface, formed on the curved surface of the artificial base, support contour in the form of a system of cross-beams or support ring.

What's new is that the junction of the concrete shell and the reference circuit, there is a hinge, the distribution of the concrete shell on the curved surface of the artificial base proposed in the form of a sickle. Bearing belt sheath are placed on the concrete surface through a lining consisting of two layers of material, moving relative to each other thus reducing friction between the bearing strips and the concrete surface. Therefore, all of the tapes in the basement are working. The system tape has no bending stiffness.

The technical result of the invention is to reduce bending moments in pribornoy zone, which reduces the amount of concrete, more involvement in the work of the soil under the shell due to the sickle-shape of the cross section of the concrete surface, and a uniform distribution of the efforts of the tension in the supporting strips of the membrane, h is about makes full use of the carrier tape.

Known Foundation in the form of a shell finite stiffness, convex upward (EN 2223367 C2, MKI E02D 27/01, publ. 10.02.04.). When given constructive scheme shell works predominantly in tension.

The disadvantage of this design is the presence of reinforcement in the center section of the shell and the occurrence of cracks, which may be formed during the action of stretching and bending and lead to corrosion of steel reinforcement.

Closest to the present invention are the foundations in the form of reticulated shells (EN 2334054 C1, MKI E02D 27/01, publ. 20.09.08., EN 2334051 C1, MKI E02D 27/01, publ. 20.09.08.), contains synthetic base with a curved surface which is convex upward, the system of load-bearing tapes reticulated shells, stacked and glued to the concrete surface, formed on the curved surface of the artificial base, support contour in the form of a system of cross beams (EN 2334054 C1, MKI E02D 27/01, publ. 20.09.08.) or support ring (RU 2334051 C1, MKI E02D 27/01, publ. 20.09.08.).

The disadvantage of this design is the constant thickness section of the concrete shell on the curved surface of the artificial base that is not effective enough because of the nature of the distribution of reactive pressure under the membrane and, consequently, reduces the degree of involvement in the work of the artificial soil substrate. The node with the Directive of the concrete surface and the reference circuit is made of a hard, what causes a large bending moments in pribornoy zone. Due to the friction between the bearing strips and the concrete surface occurs uneven distribution efforts tension in the supporting tapes.

The purpose of the invention is to create an effective Foundation-shell compliance with specified reliability advancements design.

Proposed Foundation containing artificial base with a curved surface, the bearing elements and the shell, located on the grounds, according to the invention, the bearing elements are made in the form of radial and ring belts for shells with positive Gaussian curvature or the transverse and longitudinal strips for shells with zero Gaussian curvature, forming a mesh membrane laid over the strip, consisting of two layers of material, moving relative to each other, on a concrete surface, formed on the curved surface of the artificial base, located in the pit and is convex upward, and the radial or transverse tape attached edges to a reference contour in the form of a support ring or cross-beams, which are embedded in the natural basis, and between the concrete shell and the reference circuit is a strip of elastic material.

As foundations are used tape on the shedding convex upward sloping mesh shell is zero or a positive Gaussian curvature ratio boom lift span and the ratio of the section height of the concrete surface to span fromin pribornoy zone toin the middle of the shell.

Figure 1 presents the Foundation wrapper zero Gaussian curvature with the control circuit in the form of a system of cross beams. Figure 2 presents the Foundation-shell positive Gaussian curvature with the control circuit in the form of a system of cross beams. Figure 3 presents the Foundation-shell positive Gaussian curvature with the control circuit in the form of a support ring.

The Foundation presented in the form of a radial bearing 1 and the ring 2 tapes for shells with positive Gaussian curvature 1 or transverse and longitudinal 2 tapes for shells with zero Gaussian curvature. Radial or transverse tape 1 is limited to the reference circuit 3, which is a system of cross-beams or support ring, and between the concrete surface 4 and the control circuit 3 is a strip of elastic material 7, which provides a swivel coupling of the concrete surface 4 and the reference circuit 3. Carrier tape 1, 2 are placed on the concrete surface 4 through the strip 8, consisting of two layers of material, moving relative to each other. In this constructive form of the carrier tape 1, 2 on the concrete surface 4 of the artificial base 5 of the work is up to stretch without friction contact: concrete 4 - carrier tape 1, 2. Concrete surface 4 is performed without reinforcement. As carrier tapes 1 and 2 may be used glass, aramid, carbon and other fibers of high strength and high modulus of elasticity. Reference circuits 3 are embedded in the natural basis. The perception of spreading in the bases of the shells of zero Gaussian curvature is due to the Flexural rigidity of the reference circuit 3 and the lateral resistance of the soil along the reference path 3; perception of spreading the foundations-shells positive Gaussian curvature is due to compression of the reference circuit 3. Attaching a radial or transverse carrier tape 1 is made in the body of the concrete abutment contours 3.

The method of basement membrane is as follows.

Developed pit planning to mark 6. Planned artificial curved base 5 made of mineral materials. Formwork and install reinforcing cages in the reference contours 3. Artificial curved base 5 at the junction of the concrete surface 4 and the reference paths 3 is placed a strip of elastic material 7 close to the formwork anchor loop 3, and the thickness of the strip of elastic material 7 is equal to the thickness of the concrete surface 4 in pribornoy zone. Is concrete the e surface artificial curved base 5. On a concrete surface 4 stacked radial bearing 1 and ring 2 1 or transverse and 2 longitudinal tape over the strip 8, consisting of two layers of material, moving relative to each other. Is attaching a radial or transverse strips 1 in the reference frame contours 3. Is the concreting of the reference contours 3.

In the process sediment reference circuits 3 of the Foundation is the involvement of artificial curved base 5, the concrete surface 4 and carrier tapes 1, 2 in the transfer of most of the external load on the artificial curved base 5 under the Foundation. This significantly increases the resistance of the soil in the most loaded area under the reference circuit 3. This resistance artificial curved base 5 is also increasing due to its compression in the horizontal direction of the reference circuits 3. Jet pressure artificial curved base 5 is transmitted to the concrete surface 4 and are distributed on the carrier tape 1, 2. Spacer efforts that appear in the radial or transverse carrier tapes 1 the settling of the Foundation, transmit transverse loads on the abutment contours 3 round or rectangular Foundation.

The Foundation that contains synthetic base with a curved surface, the bearing elements and the shell, R is sporogenous based, characterized in that the bearing elements made in the form of radial and ring belts for shells with positive Gaussian curvature or the transverse and longitudinal strips for shells with zero Gaussian curvature, forming a mesh membrane laid over the strip, consisting of two layers of material, moving relative to each other, on a concrete surface, formed on the curved surface of the artificial base, located in the pit and is convex upward, and the radial or transverse tape attached edges to a reference contour in the form of a support ring or cross-beams, which are embedded in the natural basis, and between the concrete shell and the support the circuit is a strip of elastic material.



 

Same patents:

Foundation // 2385994

FIELD: construction.

SUBSTANCE: foundation comprises support part, vertical stiffening ribs installed in it, which form square metal frame, under-column part arranged on vertical stiffening ribs - metal frame and equipped with elements of column structure connection. Support part is equipped with lower and upper reinforcement grids, and stiffening ribs are arranged in the form of at least three beams coming out of a single centre located on vertical axis of foundation, are arranged in the form of bent profiles and equipped with stiffening elements. Stiffening ribs are installed between lower and upper reinforcement grids, and elements of column structure connection to support part are arranged in the form of reinforcement leads.

EFFECT: reduced metal intensity and increased bearing capacity of foundation, simplified design.

2 cl, 4 dwg

FIELD: construction.

SUBSTANCE: monolithic foundation for column erected on natural or manmade basement, for instance rammed in the form of truncated cone, comprises support part with metal frame and under-column part installed on metal frame and equipped with elements of column structure connection. Support part is equipped with lower and upper reinforcement grids, and metal frame is made in the form of rigid inserts, which are symmetrically arranged versus vertical axis of foundation and are installed between lower and upper reinforcement grids. Elements of column structure connection to support part are arranged in the form of reinforcement leads.

EFFECT: simplified design, reduced metal intensity and increased bearing capacity of foundation erected under column.

3 cl, 4 dwg

Foundation // 2380484

FIELD: construction industry.

SUBSTANCE: foundation includes natural base with curved surface, load-carrying members and cover located on base. Load-carrying members are made in the form of orthogonal bands forming a meshed cover and laid on system of blocks installed on natural curved base located in ditch and the bulge of which is directed upwards; at that, ends of bands are attached to support outline made in the form of two-way beam system, which is embedded in natural base.

EFFECT: effective and reliable protection of the construction above foundation, reducing material consumption.

2 dwg

FIELD: construction.

SUBSTANCE: method for erection of foundation slab of framed structure includes foundation preparation, arrangement of curb onto prepared foundation, installation of reinforcing grid, its fixation, concreting. Foundation is prepared by filling of gravel layer and a layer of sand over it and laying of hydraulic insulation, for instance PVC film, afterwards lower part of foundation slab of framed structure is shaped by installation of enclosing curb made of concrete, for instance onto hydraulic insulation, arrangement of reinforcing grid limited by enclosing curb along perimetre, fixation of reinforcing grid, for instance by means of welding, transverse and longitudinal axial marking of reinforcing grid into squares, for instance 2.0×2.0 m, in angles of which, perpendicularly to reinforcing grid, reinforcement is installed and fixed, for instance, by means of welding, with length equal to design thickness of foundation slab of framed structure. Concreting of reinforcing grid down to required thickness, with further installation of multiuse curb blocks onto concreted surface in centre of marked squares in number sufficient to fill three first rows perpendicularly to longitudinal axis of foundation slab of framed structure, concreting is performed in two stages, at the first stage space is concreted between enclosing curb, the first and partially second rows of blocks, afterwards concrete should mature to state, when its surface still is adhesive enough for connection with the following portion of concrete to form monolithic structure. At the second stage remaining part of the second and partially third rows of multiuse curb blocks is concreted, after hardness is achieved that excludes concrete breakage, when multiuse curb blocks are withdrawn. The first row of blocks is withdrawn and installed in the fourth row, concreting is continued till final formation of framed structure area. Cells, which are not filled with concrete, produced by blocks of multiuse curb, are closed with reinforced concrete covers, and upper part of foundation slab of framed structure is arranged by laying of reinforcing grid onto produced surface limited along perimetre by enclosing curb, fixation of reinforcing grid, its connection, by means of welding, with outlets of reinforcement of lower part of foundation slab of framed structure and concreting down to required thickness.

EFFECT: reduced material intensity and labour intensity, improved strength and reliability of design.

3 dwg

Basement // 2367743

FIELD: construction.

SUBSTANCE: invention concerns construction, particularly building basements for industrial and civil facilities. Basement includes external shell widening in bottom part and holding filler material of varying material durability grade. Filler material of varying durability is laid in layers in horizontal and vertical directions.

EFFECT: reduced material cost of basement, enhanced reliability.

2 dwg

FIELD: construction.

SUBSTANCE: invention is related to construction, namely to erection of buildings and structures on freezing heaving soils. Foundation on freezing soil includes rigid body comprising foot and wall, with gasket from the side of foot inverted to soil and made of heat insulation material, for instance from foam polystyrene, and also additional heat insulation material installed outside foundation limits. Upper edge of additional heat insulation material is pulled from the side of foundation external edge in the form of broken inserts via rigid body of foundation and is connected to additional heat insulator of opposite external edge of foundation. Pressure on soil in foundation foot is accepted as not higher than value of design resistance of heat insulation material to compression, and relative area of broken inserts (β=Abr ins/A0) is defined from ratio β≤1-σmax/R, where Abr.ins is area of broken inserts section, m2, A0 is gross area of foundation section in place of inserts installation, m2, σmax is maximum tension in foundation material from external loads, MPa, R is design resistance of foundation material, MPa. Additional heat insulation material installed on external side of foundation foot is connected to heat insulation material of foundation external wall. Additional heat insulation material installed on internal side of foundation foot is connected to heat insulation material of foundation internal wall. Inserts of additional heat insulation material of foundation are connected to ceiling heat insulation material above foundation. Heat insulation material installed from external side of foundation wall is connected to heat insulation material of blind area. Heat insulation material installed on internal side of foundation wall is connected to heat insulation material of ceiling above foundation.

EFFECT: provision of possibility to install foundation above design depth of heaving soil freezing, increased level of soil protection under foundation against freezing.

2 dwg

FIELD: construction.

SUBSTANCE: invention relates to foundation construction technologies, and particularly, to reinforcing technology used for compressible foundation sections of detached or standard foundations in buildings and structures being erected under severe engineering and geological and hydro-geological conditions. Method of foundation bed construction by horizontal reinforcing with solid concrete components includes foundation pit mining and installation of horizontal stiff lengthy elements such as crossties. As soon as the foundation pit is developed to the designed depth, which is equal to the sum of foundation bed depth of installation and buffer layer thickness, and is bladed, foundation pit bottom is leveled. After that, foundation axes are broken down and longitudinal axes of future solid crossties are broken down against the established construction layout of the longitudinal axes of future solid crossties regarding foundation axes. The chaps for solid crossties are made mechanically or manually on foundation pit bottom along the marked longitudinal axis of the future solid crossties. Besides, the chap depth is equal to the cross section of the future solid crosstie. The chap bottom is cleaned and reinforced frameworks are laid down in the chaps. The chaps are then cemented together with the reinforced frameworks by means of concrete mix B15 with further compacting. To install horizontal reinforced solid elements in the chaps such as solid crossties are located on the foundation pit level. So, the crosstie distributing element is formed in the compressible section of the built structure foundation bed. In addition, the length of each solid crosstie must not exceed the distance between the external shapes of the utmost foundation edges of the building. The chaps for solid crossties installation are made in parallel to each other and at design distance from each other so that the area of crosstie distributing element overlaps foundations area completely. As soon as the concrete mix in the chaps will achieve the strength no less than 50% from the design strength, the buffer layer is laid down, leveled and compacted. The buffer layer is laid down to the level of built structure foundation bed. The buffer layer consists of sand, crushed stone from solid rocks or crushed stone from ferrous metallurgy wastes. The buffer layer thickness must not be less than 1/3 of solid crosstie width or cross section diameter. The maximum size of crushed stones must not exceed 1/5 solid crosstie width or cross section diameter.

EFFECT: improvement of soft ground foundations bearing capacity and reduction of material consumption.

4 dwg

FIELD: construction.

SUBSTANCE: invention relates to foundation construction technologies, and particularly, to reinforcing technology used for compressible foundation sections of detached or slab-shaped foundations in building and structures being erected under severe engineering and geological and hydro-geological conditions. Method of foundation bottom construction by horizontal reinforcing with precast concrete components includes foundation pit mining and installation of horizontal stiff lengthy elements such as crossties. As soon as the foundation pit is developed to the designed depth and is bladed, the foundation pit bottom is leveled and filled with sand or crushed stone generating underlying layer with the designed thickness being no less than 0.05 m. Then this layer is leveled and compacted. After that, foundation axes and longitudinal axes of crossties are broken down regarding foundation axes and against the established construction layout depending on the foundation type of the structure being built. The crossties are laid down above the underlying layer in such a way to produce crosstie distribution element in the compressible section in accordance with the designed construction layout of longitudinal crosstie axes with regard to foundation axes. The crossties are installed so that their beds coincide with the level of underlying layer of foundation pit. In addition, crossties are installed butt to each other so that total length of each crosstie exceeds the distance between the external shapes of the utmost foundation edges of the building. The crossties are laid parallel to each other at the design distance so that the area of crosstie distributing element overlaps foundations area completely. Then, inter-crosstie space is filled with sand and buffer layer is laid from above to the level of foundation bed installation with sand, crushed stone from solid rocks or crushed stone from ferrous metallurgy wastes. The buffer layer thickness must not be less than 1/3 of crosstie width or cross section diameter. Maximum size of crushed stones must not exceed 1/5 of crosstie width or cross section diameter. The foundation pit is mined to the design depth, which is equal to sum of future foundation bed depth, buffer layer thickness, crosstie cross section height or diameter and underlying layer thickness.

EFFECT: improvement of soft ground foundations bearing capacity and reduction of material consumption.

2 cl, 4 dwg

Basement // 2334054

FIELD: building.

SUBSTANCE: invention refers to building and concerns creation of the basements - mesh envelopments for buildings and constructions. The basement contains the artificial basement with a curvilinear surface, supporters and envelopment located on the basement. Supporters are executed in the form of radial and ring tapes forming the mesh envelopment, laid and gummed on the concrete surface formed on a curvilinear surface of the artificial basement located in foundation ditch and turned bulge upwards. Radial tapes are attached by edges to a basic contour in the form of system of cross girders, which is sunk in the natural base.

EFFECT: provision of effective and reliable protection of the over-basement design, decrease of materials consumption.

1 dwg

Basement // 2334053

FIELD: building.

SUBSTANCE: invention refers to building and concerns creation of the basements of radial envelopments for buildings and constructions. The basement contains the basement with a curvilinear surface, supporters and envelopment located on the basement. Supporters are executed in the form of radial tapes forming envelopment, laid on a curvilinear surface and turned by bulge upwards the artificial basement located in a foundation ditch or the natural basement. Radial tapes are attached by edges to a basic contour in the form of a basic ring which is established on the natural basement.

EFFECT: provision of effective and reliable protection of the over-basement design, decrease of materials consumption.

1 dwg

FIELD: construction, particularly new building erection and existent building reconstruction under any engineering-geological circumstances.

SUBSTANCE: foundation structure comprises shallow foundation and reinforcement members. Reinforcement members are made as vertical bars of precast or cast-in-place piles having diameters less than 200 mm and arranged along foundation perimeter. The piles are spaced a distance from outer foundation faces. The distance is equal to 0.1-0.5 of reinforcement member diameter. Distance between neighboring piles is equal to 2-4 reinforcement member diameters and reinforcement member length is 15-20 diameters thereof.

EFFECT: increased load-bearing capacity due to creating compressive operational conditions under different engineering-geological circumstances, increased dynamic rigidity of foundation base and reduced foundation deformation and vibrational amplitude.

9 dwg

FIELD: building, particularly panel foundations for multistory buildings and structures, which apply non-uniform loads to ground base.

SUBSTANCE: method involves forming crossing slots in ground; reinforcing the slots with frames and concreting the slots. For panel foundation erection in clay ground pit is preliminarily dug in ground. Then crossing slots adapted for reinforcing frames receiving are created in pit ground, wherein the reinforcing frames have projected parts. Areas of reinforcing frames intersection are additionally reinforced along with connecting projected parts and concreting thereof to fill the slots.

EFFECT: increased operational effectiveness and reduced costs.

2 dwg

FIELD: building, particularly to erect bored cast-in-place foundations of increased load-bearing abilities including ones having bottom marks typical to shallow foundations.

SUBSTANCE: stepped foundation comprises bored cast-in-place sections formed with the use of auger. Lower foundation step includes four peripheral cylinders of Dp.l. diameters and heights equal to above diameters. Peripheral cylinder centers are located at apexes of square having side lengths equal to Dp.l.. Square center coincides with center of support. Central support abutting four peripheral cylinders of lower foundation step has four expanded parts with Dc.exp diameters determined as Dc.exp=(1.0-1.2)Dp.l. and cylindrical bore having diameter Dp.up determined as Dp.up=(0.6-0.8)Dp.l.. Foundation bottom is 0.7 m below ground surface. Foundation erection method involves forming drilled pile sections; serially drilling wells having daug.1 diameters as each peripheral cylinder having Dp.l. is forming; creating each peripheral cylinder having height equal to Dp.l. by supplying working material for above cylinder forming; filling remainder well section with ground material, particularly with ground excavated from above object. Auger having diameter, which provides necessary Dp.l. diameter is used. The auger provides usage of technological processes, which provides 1.05-1.1 increase of pile diameter in comparison with auger diameter daug.1 and 1.1-1.2 increase of ground pile diameter in comparison with daug.1 diameter. After four peripheral cylinders of lower foundation step creation well having daug.2 diameter is drilled by means of direct auger rotation and ground excavation to day surface. The well has center coinciding with central support center and depth selected so that the well reach tops pf peripheral lower step cylinders. Then lower expanded part of central support is formed, wherein the expanded part has expansion degree Bc.exp./daug.2 equal to 1.5-2.0. During cylindrical bore drilling the expanded part has expansion degree Dp.up/daug.2 equal to 1.2-1.5.

EFFECT: increased load-bearing capacity per foundation volume unit, extended field of technical means.

3 cl, 4 dwg

FIELD: construction, particularly to erect foundations in natural base.

SUBSTANCE: method involves driving pair of members pivotally connected with each other and provided with single bevels at lower ends thereof in ground; digging-out trench; installing guiding member on trench bottom; forcing plate members in ground up to plate members abutting upon guiding member and closing of beveled upper ends thereof; installing the similar pair of members having lengths exceeding that of the first pair in trench; driving above pair in ground up to upper beveled ends closing; concreting the trench.

EFFECT: increased load-bearing capacity of the foundation due to inclined members embedding and ground compaction under foundation bottom.

4 dwg

FIELD: construction, particularly to erect multistory buildings on non-uniformly compressible clay base.

SUBSTANCE: method involves excavating crossing trenches in ground; filling the trenches with concrete and joining thereof with slab covering the trenches. Trenches are excavated from pit bottom for different depths. Lower trench parts are provided with widened abutment sections having reinforcement bars included therein. The reinforcement bars are used as non-stretched threads. Trenches and slab are reinforced with nettings. Cell centers of the slab are anchored.

EFFECT: increased rigidity of foundation slab due to provision of ribs in ground.

5 dwg

FIELD: construction, particularly to erect foundations on natural bases.

SUBSTANCE: shallow foundation comprises support mats and foundation building blocks. Support mats have through orifices along mat perimeters. Upper parts thereof have extensions shaped as truncated cones and adapted to immerse piles in ground as load increases during structure overbuilding.

EFFECT: increased load-bearing ability.

2 dwg

FIELD: construction, particularly to reconstruct buildings and building structures.

SUBSTANCE: foundation comprises supports, sheath freely formed in ground inside area defined by foundation so that convexity thereof faces upwards and connected to supports by means of flexible ties. Cement mix layer, metal arch trusses and reinforced concrete layer are serially arranged on ground inside area defined by foundation. Metal sheets are laid on arch trusses and connected with each other through welded joints to create flexible sheath. Pre-stressed flexible ties inserted in through support orifices and provided with fixing anchors are placed over the sheath. In the second embodiment foundation comprises support, sheath freely arranged in ground inside area defined by foundation so that convexity thereof faces upwards and connected to supports by means of flexible ties. Ground mix layer reinforced with cement mix, metal sheets and reinforced concrete layer are serially located on ground inside area defined by foundation. Metal sheets are bent along predetermined profile and connected with each other to create sheath. Relaxed flexible ties inserted in through support orifices and provided with fixing anchors are placed over the sheath.

EFFECT: increased operational reliability.

4 cl, 1 dwg, 1 ex

FIELD: construction, surface mounted structures.

SUBSTANCE: invention pertains to construction and can be used when erecting buildings with considerable loading on a compressed clay bed. The technique for erecting a solid core foundation slab with closed vertical walls, directed downwards, involves designing a foundation pit, trenches, reinforcing them with frames and filling with concrete, and joining the surface with a slab. The trenches are dug from the bottom of the foundation with different depths. The trenches are then joined, thereby forming several closed contours, whose depth increases from the central part of the slab to the edges. The technical outcome is increase in strength of the foundation slab due to effect of the square shaped closed edges in the ground.

EFFECT: increased strength of the foundation slab.

3 dwg

FIELD: constructional engineering.

SUBSTANCE: invention refers to constructions on heaving soils. House footing based on freezing through soils includes a rigid body with flanges and indents from soil side, footing indent inserts made of heat-insulating material, e.g. polystyrene foam at such ratio of flange and footing indent areas that soil pressure from the lower flange surface is not less than standard pressure of frost soil heaving, soil pressure from the lower insert surface is not exceeding design compression resistance of insert material. Also, the said footing contains supplementary heat insulation laid outside of the footing. The upper edge of supplementary heat insulation is passed from external edge of the footing in the form of interrupted inserts through rigid body of the footing and connected to supplementary heat insulation of opposite external edge of the footing. Relative area of interrupted inserts (β=Aint.ins./A0) is given by the relation β≤1-σmax/R, where Aint.ins. is sectional area of interrupted inserts, m2, A0 is gross sectional area of the footing within inserts arrangement regions, m2, σmax is maximum external load pressure in footing material, MPa, R is design resistance of footing material, MPa. Indents and flanges of the footing from soil side are alternating along footing length. Indents centres from soil sides are provided under interrupted inserts centres of supplementary heat insulation from each external edge of the footing.

EFFECT: possibility to lay foundation above the design depth of heaving soil frost penetration level.

4 dwg, 1 tbl

Basement structure // 2334050

FIELD: building.

SUBSTANCE: invention refers to construction of the basements of buildings. The basement structure of a building includes heat - and waterproofing layer (17, 18, 40) which is laid on a flat horizontal surface (51) layer of the material breaking capillary action. The basement structure includes a frame (31) which surrounds specified heat - and waterproofing layer (17, 18, 40), at least, in its top part, thus fixing integrity of basement structure in a horizontal plane and which serves for punctiform bracing of the building supported by basement structure. The specified basement structure is encapsulated with foil (111) from a metal material.

EFFECT: prevention of smell penetration in a building and water-proofing maintenance; possibility of fast and energy conserving erection of the basement.

8 cl, 8 dwg

Up!