Retained folding formwork for construction of cast-in-situ walls
SUBSTANCE: retained folding formwork for construction of cast-in-situ walls includes parallel panels and hinged ties, vertical posts with panel and tie attachment devices located on external side of vertical post throughout their height. Panels of formwork are meshed, hinged ties are attached to vertical posts so that they can be turned in attachment devices, each one is made in the form of a zigzag so that sections inclined in plan view to surfaces of panels and sections in bend area, which are parallel to flat external wall of vertical post and contact it, are formed; at that, two hinged ties adjacent as to height are located in opposite phase relative to each other and fixed on posts in a staggered order. Hinged ties are fixed at one and the same height of opposite posts and located in one and the same plane.
EFFECT: improving stiffening characteristics of formwork system at the concreting stage and increasing the strength of sections of the built construction.
The invention relates to the field of construction and can be used in the construction of monolithic walls of concrete and other similar materials, partitions, beams, frames, arches, arches, interior walls, during the construction of monolithic columns of any shape and cross-section using permanent formwork during their construction, reconstruction and capital repair of objects of different purposes, for strengthening of masonry buildings, as well as in the construction of engineering communications, coastal fish ing-gerontocratic and hydraulic structures.
A known design of permanent formwork, which includes parallel spaced panels and rigid fastening elements articulated connection, placed obliquely to the surfaces of the panels, formwork supplied vertical posts with means for attaching panels and hinged connections located on the outer side of the uprights at their height. The casing panels are made of mesh. The hinge connection connecting the vertical posts and while performing the functions swivel, connected to vertical posts can be rotated in the means for attaching, providing the possibility of moving panels, and each made in the form of a rod, a bent-type zigzag education sites located in terms of the tilt is on to the surfaces of the panels, and sites in the area of the bend of the rod parallel to the flat outer wall of the upright and in contact with it (see EN 2248433. Permanent formwork, the method of its Assembly and method of construction solid walls and structures in a fixed timbering, MPK7 E04G 11/02, publ. 20.03.2005). Neighbouring height two pivot connection located relative to each other in antiphase and fixed on racks in a checkerboard pattern, i.e. one articulated connection in the area of its inflection is connected to one enclosure and adjacent the hinged connection in the area of his break - up with a rack that is installed in front of the first rack and the adjacent connection installed at different heights. The advantages of the above-described design are 1) the reinforcement is poured into the formwork of the concrete without additional reinforcing elements, and 2) foldable casing that allows you to run it in a production environment with high quality performance and to transport it to the place of use in the folded condition by movement of one panel relative to another in parallel, forming a flat foldable design for transportation. This design was adopted for the nearest equivalent.
The disadvantages of the above structure are increased deformability formwork system in the direction of the plane of the wall" at the stage of acceptance of concrete the th mixture and a narrow range of values of the degree of reinforcement cross-sections, limiting the scope of the casing, depending on the perceived values of the constructed element of operational efforts.
The objective of the invention is to increase stiffness characteristics of formwork systems at the stage of concreting and increasing the strength of the cross-sections of the erected structure.
The problem is solved by design non-removable folding casing containing parallel spaced panels and a hinged connection, placed obliquely to the surfaces of the panels, the vertical rack with means for attaching panels and connections located on the outer side of the uprights at their height, the casing panels are made of mesh, the hinge connection connecting the vertical posts and while performing the functions swivel, connected to vertical posts can be rotated in the means for attaching, providing the possibility of moving panels, and each made in the form of a rod, a bent-type zigzag education sites located in a plane oblique to the surfaces of the panels, and areas within the area of the bend of the rod parallel to the flat outer wall of the upright and in contact with it, and the neighbouring height of two hinge links are located relative to each other in antiphase and fixed on racks in a checkerboard pattern,i.e. the one articulated connection in the area of its inflection is connected to one enclosure and adjacent the hinged connection in the area of his break - up with a rack that is installed in front of the first rack. The difference of the suggested solutions from well-known is the installation of two relations and their fastening on the opposite stands at the same height. Thus, the two hinge links are located in pairs in the same plane opposite each other and fixed to oppositely installed racks in a checkerboard pattern. This design is a fixed casing, having at the same height two pivot connection located opposite in the same plane, and not in different height planes, increases the percentage of reinforcement vertical cross sections of the walls, reduces stress values in columns that occur when filling the formwork with concrete, about two times, increases the rigidity of the formwork system at the stage of concrete by reducing the step of fastening the links to the posts twice; this allows you to increase the height and, as a consequence, the amount of lump sum poured concrete. Flexural efforts in racks from the hydrostatic pressure of the concrete mix are up to 4 times smaller values.
Under the action of bending effort on the finished wall construction in the plane of the reinforcement ties, tension, poorly perceived by the concrete, resist the violence of the resistance to stretching rod ties, oriented at different angles to the wall surface. This compensates for external influences to a greater extent than if one plane was located one relationship or if these relationships would be established in different height planes. This increases the strength of the wall on the bend after concrete strength approximately twice at the same height of the wall.
The drawing shows a horizontal section plane, the proposed design of the formwork.
The casing contains on one hand the number of racks 1 and on the opposite side of the casing number of racks 2, made for example in the form of channels, which are at their height of two grids 3, one on the rack 1, the other on 2 racks that are installed from the outside of the uprights. The casing contains a hinged connection 4 and 5, curved in the shape of a sine wave or zigzag, which are located in one plane and set out of phase relative to each other. To do this, at the same height of the uprights 1 and 2 from one side to the even-numbered poles 1 one of a number of fixed hinge connection 4, which is fixed on the other side on the rack 2 of the second row on each odd-numbered rack. In opposition she articulated the link 5 at the same height as the nexus 4, is fixed on each odd-numbered rack 1 of the first row and in each even-numbered rack 2 of the second row. And the grid 3, and the hinge connection 4 and 5 secured to the uprights 1 and 2 externally is. Means for fixing nets and articulated linkages (not shown) can be made in the form of loops, located on the outer side of the racks. Grid 3 is fixed on the uprights rigidly and loops for ties, encircling them around the perimeter of cross section, enables the latter to be rotated about a horizontal axis passing through the point of attachment of communications 4 (5) to the rack 1 or 2. Grid 3 can be made of steel and is provided with ribs (not shown). The hinge connection 4, 5 can be made of rigid rods, bent in the form of a trapezoidal meander, or wire, bent in the form of a sine wave. Such hinged connection 4 and 5 lying in the same plane pairs can be positioned at different heights of the racks 1, 2, enhancing the reinforcing effect for the walls.
The device operates as follows. Formwork is manufactured in an industrial environment that ensures high quality, is folded by turning the swivel connections 4, 5 loops are parallel to each other panel, moving parallel to each other, form a small plane in the plane of the panel structure, which is loaded on the vehicle and folded delivered to the construction site. At the site of erection of the walls due to the swivel links 4, 5 are spread, and the panels are moved apart at a width equal Russ is the right between the seats break the hinge links. This apart, the formwork is set in place and filled with concrete. The concrete fills all the space between the panels, including racks 1 and 2 and the attachment of the panels and the hinge connections to the racks. Concrete pressure creates spacer efforts on the panel. Spacer efforts create tensile forces in the hinge connections 4, 5, decomposition which gives a response opposing the pressure and the compressive force in the longitudinal direction of the wall, perceived side mesh elements 3.
As articulated two links in the same horizontal plane, the distribution of the reinforcement elements is symmetrical in the vertical sections of the wall and make a positive impact on the process of receiving the concrete mix and the perception of the finished design external loads and impacts.
All of the above is confirmed by experimental research designs fragments monolithic walls, made by the authors. For testing were prepared concrete samples using steel permanent formwork size of 1.0×1.0 m, thickness 16, 30, 50, see the Tests were carried out on a hydraulic press IPS-200. The load was applied in increments of 10% from the calculated breaking load to the complete destruction of the samples. A comprehensive analysis and evaluation on which lay the strength and deformation characteristics of monolithic reinforced concrete walls, built using the proposed framework.
Fixed folding formwork for the construction of monolithic walls containing parallel spaced panels and a hinged connection, a vertical rack with means for attaching panels and connections located on the outer side of the uprights at their height, the casing panels are made of mesh, the hinge connection is connected to vertical posts can be rotated in the means for attaching, each made in the form of zigzag education sites located in a plane oblique to the surfaces of the panels, and areas within the area of the curve, parallel planar outer wall of the upright and in contact with it, and the neighbouring height of two hinge links are located relative to each other out of phase and fixed on racks in a checkerboard pattern, characterized in that the articulated connection is fixed at the same height as the opposite racks and are located in one plane.
FIELD: construction industry.
SUBSTANCE: invention refers to construction industry, and namely to design of non-detachable formwork which can be used when erecting walls and foundations of buildings and structures from monolithic concrete. Non-detachable formwork made from meshed profiles includes parallel meshed panels, vertical supports and attachment elements. Vertical supports are made from meshed guide profiles of the height equal to height of formwork unit and width corresponding to thickness of wall or foundation and installed with specified pitch between flanges of horizontal meshed guide profiles the length of which corresponds to length of the unit, and vertical supports and meshed panels are attached by means of tapping screws.
EFFECT: providing easy erection, ease, versatility, reliability and strength of formwork constructions.
2 cl, 1 dwg
SUBSTANCE: invention pertains to automated and construction of industrial and civil buildings with construction of highly reliable structures. The automated technique of erecting monolithic foundations and walls lies in that, a unit for preparation of concrete is assembled, as well as concrete pumps and pliable concrete pipelines, for automation of its supply. From a strong, cord woven sleeve, which is the outer hoop and reinforcement, elements are cut out with equal length and width of the foundation walls and walls of the building. The ends of the sleeves are sewn, openings are cut on their upper part, and the sleeves are rolled up and marked. An earth foundation is made and the first roll is unrolled onto it with the openings on the upper side. The concrete pipelines are inserted into the openings; a portion of concrete is pumped into them using a concrete pump. It is then held such that it does not spread out from the hoop and gravitation force is applied to the plastic tear-shaped sleeve in the section of its shape, with its bottom taking the shape of the surface of the earth foundation, and cement is squeezed out through the fabric of the sleeve. The next empty sleeve is unrolled onto it and similarly filled, and through gravitational forces, the pliable lower sleeve is flattened out into a flat oval shape. Breaks are taken so that the concrete hardens, and the cycles of building up the walls continue until the foundation is fully prepared. Then there is laying of water-proofing compound, armoured cord, ceiling mounting, and the walls are formed using the same, method. In this case, there is reduction of their thermal conductivity, including light fillers, for instance, polystyrene, pearlite and clayite. The walls are reinforced with hoops made from cord, and the sleeves effectively interlinked by the cement squeezed out through them. Between the sleeves, there are closed reinforcement belts. The pliable sleeves are linked to each other by reinforcement steel bars which pierce through them in a vertical direction. Doors and windows are put into final position. A sleeve is unrolled between them and a concrete pier is put which fixes their position. The technical outcome lies in the lowering of labour intensiveness of erecting monolithic foundations and walls of buildings and other structures, automation of the erection technique and increased strength and reliability of their reinforcement with textile fabric made from cord.
EFFECT: lower labour intensiveness in erection of monolithic foundations, increase in their reliability.
2 dwg, 2 tbl
FIELD: building and construction.
SUBSTANCE: falsework has panels, placed in parallel, and rigid fixing elements, placed at an angle to surfaces of panels, while falsework is provided with vertical posts with means for connection of panels and hinges, placed on outer side of vertical posts along their height, panels of falsework are made meshed, rigid fixing element, connecting vertical posts and concurrently performing joint connection function - hinges, is connected to vertical posts with their possible rotation in fixing means, providing for possible displacement of panels, and is made in form of rod, bent in zigzag shape with forming of portions, placed in plan at an angle to panels surfaces, and portions in zone of rod bend, parallel to flat outer wall of vertical post and in contact with it. Also described are method for assembling falsework and method for construction of monolithic walls and buildings.
EFFECT: simplified technology.
3 cl, 8 dwg
SUBSTANCE: wall comprises concrete pillars that consist of permanent forms made of cellular blocks that create wells for pouring of heavy concrete with previously arranged vertical reinforcements, insulating plates, wall forms of blocks for instance. Foiled insulation is installed in wells of concrete pillars on inner side of erected wall, inside wells there are through horizontal holes previously arranged along wall, where longitudinal anchors are installed, at the same time wooden carcass-frame arranged between concrete pillars is fixed to longitudinal anchors, and ledger strips are fixed to vertical stands of wooden carcass-frame along wall at one or two sides, besides vertical stands of wooden carcass-frame and ledger strips are installed perpendicularly versus each other. Between ledger strips there are insulating plates arranged or mineral insulator having same thickness with ledger strips, and between vertical stands of wooden carcass-frame there is a second row of insulating plates or mineral insulator having same thickness with vertical stands. Foiled insulation is installed to the latter, being fixed with the help of ledger strips, or on completion of inner and outer rows of wall curbs and insulating plates installation between ledger strips, insulator fill may be filled between vertical stands of wooden carcass-frame, or cellular concrete in liquid form may be filled. For pouring of cellular concrete there are holes arranged along vertical stands, where pins are installed. Also in insulating plates or mineral insulator arranged between ledger strips and vertical stands, in foiled insulation installed between them, in certain areas there are through holes provided, where transverse anchors are installed with the possibility of fixation and attachment of inner and outer rows of wall forms made of blocks, for instance to wooden carcass-frame.
EFFECT: higher number of storeys constructed, simplified technology of wall erection and lower cost of wall construction.
3 cl, 4 dwg
FIELD: construction industry.
SUBSTANCE: reinforcement for reinforcing panel of heat-insulation concrete form includes a fastening brace element built in the reinforcement and retained in it in its place due to material enveloping it and intended for attachment thereto a brace for connecting the panel to opposite panel in heat-insulation concrete form, and device for connecting the reinforcement to the panel being reinforced. There also described is version of reinforcement for reinforcing panel, panel of heat-insulation concrete form, set of heat-insulation concrete form, heat-insulation concrete form, heat-insulation concrete form of columns, heat-insulation concrete form for T-shaped wall and method of reinforcing panel in heat-insulation concrete form.
EFFECT: reinforcement and strengthening of wall structures of heat-insulation concrete forms.
26 cl, 9 dwg
FIELD: construction industry.
SUBSTANCE: fixed construction formwork includes soft cover with interconnected cells formed inside it and intended for being filled with solidified compound, and stiffeners. Cells have parallelepiped shape and are located along the whole formwork; at that, one of the sides of rectangle in cross section of cell corresponds to thickness of manufactured building structure, and stiffeners are installed between cells in inter-fabric slots along the whole cell and are made in the form of planks.
EFFECT: improving aesthetic and strength properties with simultaneous increase in labor efficiency when manufacturing formworks and simplifying the design.
3 cl, 2 dwg
SUBSTANCE: at the first stage of erection, external and internal panels of leave-in-place form are installed, and in areas where vertical reinforcement rods or vertical anchors installed in foundation come out, reinforcement frame is placed, and extensible shaping facility is installed to embrace the latter in the form of hollow volume trihedral rod, which is temporarily fixed by its larger face to internal surface of form panel, and sheets of heat insulation materials are attached to two other faces of rod and are fixed by their free ends to internal side of leave-in-place form. Then concrete mass is poured into rod, and as concrete gains in strength, rod is released from temporary fixation and is extended to design height till final erection of support pillar with repetition of the first stage operations cycle, after erection of support pillar till design height, hollow volume trihedral rod is withdrawn from form, and panels of leave-in-place form are fully filled with concrete mass till its final hardening.
EFFECT: possibility to operate building with increased load over its slab.
SUBSTANCE: invention is related to method for manufacturing of wall-ceiling structure in reinforced concrete version, when prefabricated non-withdrawable curb systems are used from wall curb system and ceiling curb system. Method for manufacturing of wall-ceiling structure in reinforced concrete version, in which non-withdrawable curb system is used from prefabricated wall curb system comprising two curb plates, which are installed at a distance from each other and are fixed to each other by means of fixtures, moreover, joining element between wall and ceiling is represented by mounting armature. For ceiling they use prefabricated non-withdrawable ceiling curb system, which is made without grid truss and comprises support plate, on which multiple separate longitudinal rods are placed parallel to each other, which, by means of multiple U-shaped brackets, which are installed on support plate with their angle shelves inverted to support plate and installed at the distance above support plate with their angle walls, are welded in angles between angle shelf and angle wall, and therefore separate longitudinal rods are fixed with the main plate at the distance from it so that separate longitudinal rods lie in lower area, especially in lower third of manufactured ceiling finished concrete ceiling. Ceiling system of curb and wall system of curb are fixed to each other so that separate longitudinal rods of ceiling curb system pass perpendicular to wall system of curb. Mounting armature on one side is inserted into wall curb system, and on the other side is fixed on separate longitudinal rods of ceiling curb system, so that mounting armature by means of separate longitudinal rods is fixed on support plate of ceiling curb system.
EFFECT: provides for manufacturing of wall-ceiling structure, especially, wall-ceiling joint.
5 cl, 2 dwg
SUBSTANCE: present invention pertains to building components for constructing concrete walls, and more specifically, to connection straps, which are used for holding panels at a distance and parallel each other. The connection strap for joining the first and second wall panels, where the first and second wall panels lie parallel each other, have first and second end pieces. Each of the end pieces stretches between the first edge, which is inside the wall panels, and the second edge. The second edge has a first hinged member. The first end piece is in the first wall panel. The second end piece is in the second wall panel and the centre section, stretching between the pair of second hinged members. The centre section lies between the first hinged member of the first end piece and the first hinged member of the second end piece, in which one of the first and second hinged members is in form a hinge pin, and the other has at least one first gudgeon and at least one second gudgeon. The hinge pin forms a vertical hinge axis. The first finger is vertically displaced from the second finger. The first and second gudgeons can support opposite sides of the hinge pin. Description is also given of the building component part.
EFFECT: easier moulding of end sections using injection moulding process, reduced number of stages, required in the injection moulding process, as well as cost of making connection straps.
16 cl, 16 dwg
SUBSTANCE: invention concerns construction industry and can be used for erection of walls made of form panel boards. The wall comprises form panel boards with outside facing panels, reinforcement and insulant. The wall also comprises blocks, which include opposed form panel boards made by applying, for example, gas concrete or foam concrete panels of the required thickness onto the facing panels, and the inside surface of the gas concrete panel of the form panel board facing the outside face of wall is covered with insulating plate. Between the gas concrete or foam concrete panels and facing panels of form panel boards, plates of a length equal to the wall thickness and made, for example, of gas concrete or foam concrete are installed in transverse direction. Reinforcement is pre-installed between the transverse plates and facing panels, and an insulating panel of a thickness necessary for thermal insulation is located between the reinforcement, and holes are made in the corners of the form panel boards and through the transverse plates, fasteners fixed on both sides are inserted into these holes transversely to the block. To attach the transverse plates with each other and the form panel boards, there are holes in the plates, in which fasteners fixed on both sides are inserted along the block length, these fasteners can be left in their places. Between the facing panels, insulating plate and transverse plates, concrete columns are embedded into the reinforcement, and after hardening of the columns the fasteners pre-installed transversely to the block in the corners of the form panel boards are removed.
EFFECT: increased wall strength, constructability and cost reduction.
3 cl, 5 dwg
SUBSTANCE: invention pertains to construction field, namely, to walls with unremovable form blocks for building of multistoried buildings. Wall includes main form blocks arranged one over the other in layers with closed cavities, internal cavity whereof has a rectangular parallelepiped-shape formed by longitudinal and transverse walls and open in its lower and upper basements, with one of the side flat ends open having a top-flatted cavity formed by wings continuing longitudinal walls of the block, length whereof makes part of the length of closed cavities, and additional blocks. Longitudinal and transverse walls of unmovable form blocks are made of longitudinal and transverse blocks gathered together on the wall building - up site in such a way, that, at first, foundation is poured, then reinforcement is set vertically on it, then alternatively odd and even rows of form blocks are laid out, so that, in the places where reinforcement was preliminary vertically installed longitudinal blocks of form blocks of odd and even rows are placed overlapping and off - set against each other by the width of the concrete pillar and along with transverse blocks, heating plates arranged on the internal side of each of external longitudinal blocks between transverse blocks and vertically arranged reinforcement are set forming a well for pouring of concrete mortar with consecutive consolidation and formation of concrete pillars with certain periodicity, whereon the entire wall construction is mounted and rested. Provided that heating plates are set and fixed to the internal surface of external longitudinal blocks of unmovable form blocks, whereat in unmovable form blocks longitudinal blocks and one of the transverse blocks are connected with each other by means of angle bars and fixing units, and the other transverse block is connected with longitudinal blocks from above by fasteners. Besides, longitudinal blocks of unmovable form blocks are preliminary reinforced, whereat one end of reinforcement is fixed to the vertically arranged reinforcement of concrete pillar and the other end is fixed to the vertically arranged reinforcement of neighbouring concrete pillar. Door port is formed by displacement in the wall of the first, second and the third longitudinal blocks of unmovable form blocks at brickwork by width of the door port with consecutive installation into the door port prior to laying of the fourth row of longitudinal blocks of unmovable form blocks. Window aperture is formed by displacement of the second and third rows of longitudinal blocks of unmovable form blocks by the width of window aperture with consecutive installation of window block into the aperture prior to laying of the fourth row of longitudinal blocks of unmovable form blocks, whereat one floor of the built - up building is assembled from four rows of unmovable form blocks.
EFFECT: increased number of stories of building, simplified technology of wall building up and building costs reduction.
3 cl, 3 dwg
SUBSTANCE: invention pertains to the construction field and may be used for construction of leave-in-place form for building external and internal solid-cast and heat insulating walls of multi purpose buildings and constructions without further coating. Leave-in-place form block consists of two concrete plates accommodating inserted female screws. Metal construction hooks engaged at the ears of plastic strainers are screwed into the female screws. Varying depth of hook screwing in adjusts upright position of plates placing. Usage of hooks of various thicknesses and consecutive connection of strainers makes possible getting forms for building up walls of various thicknesses. Plates may be manufactured with decorative coating heating layer making walls building much easier. Blocks in the same row are connected between each other by means of wire strainers. Blocks in neighboring rows are connected by plastic strainers. Form construction consists in its consecutive extension starting from the bottom row. Further rows are placed over the bottom one until reaching the required height. Metal reinforcement, embedded elements may be set into the space between the walls of the form in order to avoid slotting for laying of service lines and perforation of openings and doors at full thickness of the wall.
EFFECT: simplified assembly of the form; reduction of storage and transportation expenses; cost reduction of assembly works; possibility of preliminary assembly of heat insulating layers; possibility of usage of plates in the form as a ready for operation coating of the wall under construction; simplification of building walls of various thicknesses.
3 cl, 1 dwg
SUBSTANCE: building frame contains stands made of bent profiles, to which external and internal fixed curbs are attached with provision of space between curbs and stands. Space is filled with hardening grout. Stands are installed in bottom guide elements in the form of "П"-shaped profiles fixed in foundation. Stands are installed in pairs in two rows in staggered manner. Heat insulation material insert is installed in space between stands of every pair. Bottom guides are installed on foundation through dampproof film and fixed to it with anchor bolts. Top parts of stands are fixed with guides made of the same profile that the bottom guides.
EFFECT: increase of building heat capacity with reduction of its weight, labour intensity and manufacturing costs.
5 cl, 2 dwg
FIELD: building, particularly forms.
SUBSTANCE: isolation building form structure includes form sized to erect one concrete wall section. Form comprises the first elongated side panel of foamed polystyrene and the second elongated side panel of foamed polystyrene. Each panel has top and bottom, wherein panel bottom serves as building wall bottom and panel top is building wall top. Form comprises elongated horizontally spaced vertical dividers of foamed polystyrene having at least four sides and arranged between panels. Dividers serve as spacing bars and define spaced channels for concrete pouring between dividers. Dividers have upper and lower ends. Upper divider ends are spaced downwardly from upper ends of panels, lower ends thereof are spaced upwardly lower ends of panels to form upper and lower areas for concrete pouring. Upper and lower areas communicate with channels between dividers. Dividers have uniform cross-sections along the full length thereof so that concrete to be poured in channels form concrete columns having constant dimension in vertical direction. Each column has four vertical sides arranged at an angle one to another so that medium parts of concrete posts are wider than side parts thereof, which results in decreased width of divider centers for decreasing dividers compression between panels under the action of compression force applied thereto.
EFFECT: reduced labor inputs, improved manufacturability.
12 cl, 20 dwg