Method for manufacturing of cast in place and precast node of pillar connection with crossbar
SUBSTANCE: each crossbar is concreted with support cantilevers, in a groove is made in the pillar. Connecting elements of the crossbar are made in the form of a steel rope with clamp couplings pressed at its ends. Concrete extraction is continued until the working reinforcement of the pillar is exposed. The crossbar comprises support cantilevers from a steel rolled shape with protrusion outside the limits of the crossbar end. Each of rope elements is preliminarily folded in two to form a loop protruding beyond the end of the crossbar. Ends of rope elements are solidified in the body of the crossbar. Then crossbars are installed into the design position relative to the pillar. Afterwards in the pillar recess they bend the loops of ropes, which are inserted between the working reinforcement of the pillar, and then spread into the design position. Additional reinforcement rods are placed inside the loops of the ropes. Afterwards the formwork and the node of connection are installed in the volume of the recess and filled with concrete.
EFFECT: lower labour intensiveness of assembly, increased operational capabilities and reliability.
The invention relates to the field of construction, namely the construction of residential, public and civil buildings and can be used in the joints of reinforced concrete beams and columns.
A known method of manufacturing a prefabricated monolithic connection node of the column with the bolt lies in the fact that each bolt concreted with the control console, and in the column perform the recess, which is placed fasteners bolts, made in the form of a steel cable is pressed at its ends swaged couplings and install additional reinforcing bars associated with connecting elements (patent RU №2072408, IPC EV 1/38 published: 20.03.1998 year).
This solution is the closest to the invention, therefore, adopted for the prototype.
The prototype disadvantages are the complexity of Assembly, limited operational capabilities due to the build node on the construction site, low reliability due to the absence of metal consoles and high rigidity twisted ropes, excluding compensation of oscillatory processes in the connection.
The technical result from the use of the claimed technical solution is to reduce the complexity of the Assembly due to the use of cables in flexible loops, improve the operational capabilities the spines through the Assembly at the factory bolts with consoles and protruding beyond the mounting dimension of the loop connecting elements, increased reliability due to the receipt of elastically yielding connection node.
Below is General and private significant features that characterize the causality of the invention with the specified technical result.
A method of manufacturing a prefabricated monolithic connection node of the column with deadbolt, namely, that each bolt concreted with the control console, and in the column perform the recess, which is placed fasteners bolts, made in the form of a steel cable is pressed at its ends swaged couplings and install additional reinforcing bars associated with connecting elements. The specified excavation concrete perform at the level of the junction bolt to the column to the Stripping of the working reinforcement of the column, and the height of the recess is greater than the height of the crossbar, which has a rectangular shape and a shelf for supporting slabs. Bolt pre-produced in the process of plant production in the form of a single element, which includes at least two specified reference console from steel rolling profile with the release of beyond the end of the bolt, and at least two said cable connecting element at the end of the bolt, each of which is pre-folded in half to education serving at least one end of the crossbar of the loop. In the e specified loop cables, protruding beyond one end of the crossbar to seminolecounty in the body of the bolt guide only horizontal or only vertical planes at the ends of the cable connecting elements with swaged couplings on the ends have parallel to the axis of the bolt and zamonolichivajut their body bolts. Using an auxiliary means of set bolts in projected position relative to the column, and then specified in the recess of the columns in the manufacturing process of precast-monolithic connection node of bends, loops of ropes and slid them between the reinforcement columns, Then straighten in the design position, and inside these loops of ropes placed at least four said additional rebar, spaced to the inner surface of the loops of the cables. After that, the scaffolding and the connection node in the volume of the recess in the column poured concrete, comprising a monolithic site column, at least one bolt with consoles, cable connecting elements, additional reinforcement bars and working reinforcement columns. After hardening of the concrete, an auxiliary means of bolts and the formwork is removed.
The invention is illustrated by drawings, where: figure 1 shows in isometric elements precast-monolithic unit; figure 2 presents sborn the monolithic node, side view; figure 3 is a view of A-a in figure 2; figure 4 is a view In figure 3; figure 5 is a view of the City of figure 4; figure 6 - a view b-B of figure 2; figure 7 is a view of d-D figure 6; Fig - view E-e of figure 6; figure 9 is a view of e-E figure 6, option.
A method of manufacturing a prefabricated monolithic connection node of the column 1 with the bolt 2, is that each bolt 2 concreted with a support 3 consoles, and in the column perform the recess, which is placed connecting elements 4 door, made in the form of a steel cable with 5 sealed at its ends swaged couplings 6 and install additional reinforcing bars 7 connected with the connecting elements 4.
The specified excavation concrete perform at the level of the junction bolt 2 to column 1 to uncovering the working valve 8 column 1, and the height of the recess is greater than the height of the bolt 2, which is rectangular in shape and shelves 9 for bearing slabs (not shown).
Bolt 2 pre-produced in the process of plant production in the form of a single element, which includes at least two specified reference console 3 from steel rolling profile with the release of beyond the end of the bolt 2, and at least two said cable connecting element 5 at the end of the bolt 2, each of which is pre-folded in half to education serving, at least one end of the bolt 2 loops (Fig 1)
All these hinges cables 5, protruding beyond one end of the bolt 2 to seminolecounty in the body of the bolt 2 guide only horizontal or only vertical planes at the ends of the cable connecting elements 4 with swaged couplings 6 at the ends have parallel to the axis of the bolt 2 and zamonolichivajut them in the body of the bolt 2.
Then, using an auxiliary means (not shown) installed crossbars 2 in the design position relative to the column 1, and then specified in the recess of the column 1 in the manufacturing process of precast-monolithic connection node of bends loop cables 5 and slid them between the working reinforcement of the column 8, and then straighten in the design position.
Inside these loops of ropes 5 are placed at least four said additional reinforcing rod 7, posted to the inner surface of the loops of the cables 5, then set the casing 10 and the connection node in volume 11 of the recess in the column 1 of poured concrete, comprising a monolithic site column 1 at least one bolt with 2 consoles 3, the cable connecting elements 5, additional reinforcing rods 7 and working reinforcement of the column 8, then after hardening of the concrete, an auxiliary means of bolts 2 and the casing 10 are removed.
A comparison of the claimed technical resh is tion with the prior art known from scientific, technical and patent documentation on the priority date in the main and adjacent sections revealed no means having characteristics identical to all characteristics contained in proposed by the applicant claims, including characterization purposes. I.e. the set of essential features of the claimed solution was not previously known and is not identical with any known technical solutions, therefore, it corresponds to a condition of patentability "novelty".
This solution is industrially applicable, as in the description and title of the invention indicated his appointment, it can be carried out industrially and used for the connection of reinforced concrete beams and columns.
Technical solution workable, feasible and reproducible, and features of the device allow to obtain the desired effect, i.e. they are significant.
Technical solution in the form as it is described in each of the claims, may be made by using the tools and methods described in the prototype, which became public before the priority date of the invention. Therefore, the claimed technical solution meets the condition of patentability "industrial applicability".
Analysis of the known technical solutions in the field of the invention showed that the proposed method is not necessary for the expert in the obvious way from the prior art, p is not because of the identified solutions, have signs consistent with the distinctive features of the invention and is not confirmed by the popularity of the influence of distinctive features provided in the application materials technical result. I.e. the claimed invention has characteristics that are absent in the known technical solutions, and the use of these characteristics in the stated essential features gives you the opportunity to gain new technical result in reducing the complexity of the build, improve operational capabilities and reliability.
Therefore, the proposed solution can be obtained only by creativity and not obvious to a person skilled in this field, i.e. corresponds to a condition of patentability "inventive step" and, therefore, is new and involves an inventive step.
The invention is implemented as follows.
Industrially produce the locking bolt 2 in conjunction with mortgage loans 3 consoles, which transmit transverse forces from the bolt 2 to column 1. Then the bolt 2 seminolecounty cable 5 swaged couplings 6, which is pre-folded in half, forming on the end of bolt 2 loop cable 5 protruding beyond. When this loop of rope 5 can be oriented in the horizontal or vertical planes. The cables pass us the lia, working as rebar in concrete. This is actually the only flexible valve. To enhance the anchoring cable loops 5 in the concrete provides extra reinforcement rods 7 that are adjacent to the wire with the inside part of its hinges.
Then in column 1 perform the recess of the concrete to the uncovering of the working armature 8 and with the help of auxiliary means (not shown) of the guide bars 2 relative to column 1 in the design position. In the Assembly process loop cables 5 bends and slid between the working armature 8 column 1, and then set the casing 10 forming a volume of 11, which is poured concrete. Before pouring concrete cable loops 5 straighten in the design position.
The use of the invention reduces labor costs for Assembly, extend operational capabilities and improve the reliability of the connection node and the construction object.
Loop editions of the cable 5 allow you to get the ability to mount deadbolt with 2 protruding beyond the mounting envelope elements (loops), which greatly improves the connection technology of the column 1 with the beams 2, as in the case of loops of conventional reinforcing steel insert bolt 2 into the space in column 1 is not possible.
A method of manufacturing a prefabricated monolithic connection node of the column with ri is elem, namely, that each bolt concreted with the control console, and in the column perform the recess, which is placed fasteners bolts, made in the form of a steel cable with sealed at its ends swaged couplings, and install additional reinforcing bars associated with connecting elements, wherein the specified excavation concrete perform at the level of the junction bolt to the column to the Stripping of the working reinforcement of the column, and the height of the recess is greater than the height of the crossbar, which has a rectangular shape and a shelf for supporting slabs, while the bolt is pre-manufactured in the process of plant production in the form of a single element, includes at least two specified reference console from steel rolling profile with the release of beyond the end of the bolt and at least two said cable connecting element at the end of the bolt, each of which is pre-folded in half to education serving at least one end of the crossbar of the loop, all of these hinges cables protruding beyond one end of the crossbar to seminolecounty in the body of the bolt guide only horizontal or only vertical planes at the ends of the cable connecting elements with swaged couplings at the ends of the feature p is parallel to the axis of the bolt and zamonolichivajut them the body of the bolt, then, using an auxiliary means of set bolts in projected position relative to the column, and then specified in the recess of the columns in the manufacturing process of precast-monolithic connection node of bends, loops of ropes and slid them between the working reinforcement of the column, and then straighten in the design position, and inside these loops of ropes placed at least four said additional rebar, spaced to the inner surface of the loops of the cables, then install the formwork and the connection node in the volume of the recess in the column poured concrete, comprising a monolithic site column at least one bolt with consoles, cable connecting elements additional reinforcement bars and working reinforcement columns, then after hardening of the concrete, an auxiliary means of bolts and the formwork is removed.
SUBSTANCE: universal building element includes a wooden rod with steel tips fixed at the ends and equipped with connecting elements. The wooden rod is made with square or round section and is equipped with central holes in ends for a connection element. The tip is made as capable of using connecting elements of various type installed on it and is formed by an end pad with a central threaded hole that adjoins the end of the wooden rod and combines diametrical opposite four add-on flat plates with holes, with the help of which the steel tip is installed and fixed on the wooden rod by means of dowels pressed in it via holes in the specified plates of the tip. Side surfaces of the ends of the wooden rod of round section that interact with the tip are made as flat in mutually perpendicular directions.
EFFECT: increased strength characteristics.
7 cl, 11 dwg
SUBSTANCE: nodal joint comprises a collapsible nodal element, made of joined four-face gussets with holes in walls, to which rod ends are fixed by bolts. The joint comprises a hollow metal core of square section arranged in the centre of the nodal joint and a combining gusset. Each of gussets is made with a shelf and vertical walls, two of which are mutually perpendicular, and the wall located between them is connected with the core wall. Between adjacent walls of the gussets there is a gap, in which there is a tip of a rod element. The core is equipped with a central bolt, rigidly fixed with the help of a pad in its base with a protruding end. The core base is arranged in the nodal element with a ledge in respect to the external face of the gusset shelf. On the protruding end of the central bolt there is a disc pad adjoining the core base and equipped with holes that match holes in the shelves of gussets in their location. Between the disc pad and the shelves of gussets there is a gap, where tips are installed and fixed.
EFFECT: higher joint reliability.
3 cl, 9 dwg
SUBSTANCE: unit of frame coupling includes a latticed crossbar and a V-shaped column. The crossbar is made with belts from channels or C-shaped profiles. Between the walls of the crossbar belt profiles there are shelves of channels or C-shaped profiles of the column coupled with walls arranged and fixed as overlapping. Units of crossbar belts crossing with column belts are connected by diagonals. Diagonals are made of two steel strips with width of at least one and a half height of the crossbar belt profile. The thickness of strips makes at least a half of the crossbar profile or column thickness. Diagonals are arranged in units of crossbar and column crossing between their belts. Diagonal links of identical directions are tightened to each other by bolts.
EFFECT: simplified manufacturing of a frame and its units of coupling of a frame crossbar with columns.
SUBSTANCE: unit of a metal frame carcass of a building includes a double-tee column, combined with a double-tee beam, which creates a column cantilever, which is rigidly connected in the zone of least bending torques by means of flanges on high-strength bolts with a crossbar, having the cross section corresponding to the section of the column cantilever. The column is equipped with an upper stiffening rib and paired lower stiffening ribs, symmetrically arranged at both sides of the column wall in the level of the lower shelf of its cantilever. Between the upper and lower stiffening ribs of the column in parallel to its shelves there is a vertical rib for connection of the spacer and the vertical link to it, and to the column wall above the neutral axis of its cantilever and in parallel to its shelf there is a polygonal plate attached to the shelf, and this plate protrudes beyond the edge of the upper stiffening rib, for fixation of the horizontal link. Central longitudinal axes of the spacer, horizontal and vertical links are connected in one point arranged in the frame plane.
EFFECT: unit strength improvement.
3 cl, 1 dwg
SUBSTANCE: metal frame assembly for a low-rise building comprises a double-tee pillar, having alternating cross section by height within a lower floor, with paired horizontal symmetrical stiffening ribs at both sides of its wall, which are arranged in the plane of upper and lower shelves of a double-tee beam connected to the inner shelf of the pillar to form a cantilever. The free end of the cantilever in the area of least bending torques is connected by means of high-strength bolts with a crossbar, having a cross section corresponding to the cantilever section. Between horizontal stiffening ribs of the pillar there are ribs installed for connection of spacers to them, which are displaced from a neutral axis of cross section towards the outer shelf of the pillar and are installed in parallel to it. A vertical rib is welded to the inner shelf of the pillar and to the upper belt of the cantilever as arranged in the plane of cantilever walls and the pillar. The crossbar with the pillar cantilever is connected by means of flanges welded to their ends and protruding beyond the limits of their upper shelves, at the same time the crossbar and the cantilever are equipped with supporting ribs of their upper shelves and supporting ribs of their walls.
EFFECT: reduced material intensity of a unit due to its higher stiffness.
6 cl, 1 dwg
SUBSTANCE: ridge unit of connection of a frame carcass of a building includes crossbars of double-tee cross section that are arranged at the specified angle to each other and rigidly connected to each other by means of flanges welded to ends of crossbars at high-strength bolts. The ridge unit at least at one side of crossbar walls is equipped with a pair of spacers having a closed cross section arranged above the neutral axis of crossbar section and symmetrically relative to flanges. Each spacer is equipped with a flange of a T-shaped cross section, the shelf of which is rigidly connected with the end of the spacer, and the wall is arranged in the plane of the vertical or horizontal axis of spacer section and is connected on bolts with a plate attached perpendicularly to the crossbar wall, in parallel or perpendicularly to the crossbar shelf, at the same time the distance from the plane that separates flanges to the centre of gravity of spacer section shall not exceed 1.5 d, where d - transverse size of the spacer along its central axis parallel to the crossbar shelf.
EFFECT: higher stability of a crossbar from a frame plane and reduced metal intensity of a unit.
11 cl, 3 dwg
SUBSTANCE: joint of composite tube confined concrete rods is formed by tubes, which are filled by concrete. Concrete is laid into a tube under a force higher than operational load. Concrete is limited at one end of the tube moving under action of the force with a plug with a stop. At the other end of the tube the concrete volume is fixed with the plug, some of which is placed in the pipe end. The external part of the plug is placed into the open end of the tube confined concrete rod, to which the structure is joined. With a certain volume of concrete, a guaranteed gap is provided between ends of joined tubes. The joint is covered with a coupling, the position of which is fixed with a support ring.
EFFECT: elimination of welded joints making during assembly, reduced effect of subsidence phenomena in concrete at structure operation and elimination of longitudinal shift of concrete under load.
SUBSTANCE: bent crossbar is stretched via a unit as indivisible, solid. The lower pillar cap is arranged as trough-shaped with longitudinal bent ribs. The cap follows and covers the oval surface at the bottom. The crossbar is tightly inserted into the pillar cap, matching fixing pins with responsive holes in the cap trough. The base of the upper pillar is arranged same as the cap - trough-shaped, and is equipped with fixing pins with response holes in the cap bends. The upper pillar is mounted in a non-adjusting manner, matching fixators with responsive holes, and an oval tubular cavity is formed with the cap trough. The crossbar inserted into the cavity is tightly covered. Longitudinal ribs of the upper pillar base and lower pillar cap are connected to each other, for instance, by high-strength alloyed pins. They are securely tightened with a nut setter, and a single monolithic unit of pillars and the crossbar is created.
EFFECT: automation of a process of structure carcass erection, increased manufacturability of a process, reduced labour intensiveness and higher reliability of connection.
SUBSTANCE: method to arrange joint units includes installation of lower columns, crossbars, ceiling slabs, upper columns and monolithing of column joints with crossbars and upper areas of crossbars. Lower and upper columns are columns of floor sectioning with holes in upper ends and reinforcement rods in lower ends. A conductor is fixed at the end of each column prior to assembly. The conductor forms between its body plane and the upper end of the column a space for a monolithic node joint and a hole for reinforcement rods in a finished joint. Precast crossbars are installed at the ends of columns, providing for contact of double-sided slopes of their support ends with setting columns of conductors. Monolithing of column joints with crossbars and upper areas of crossbars is carried out prior to removal of conductors from ends of lower columns. Conductors are removed from columns after formation of an initial structure of concrete in a ceiling. Upper columns are installed after concrete gains design strength, connecting them with the lower ones by means of a plug joint.
EFFECT: reduced metal intensity, higher accuracy of performance, liquidation of welding and forming works on a construction site.
SUBSTANCE: connection of wooden beam structures comprises a connection part attached to the surface of beam structures with holes and dowels arranged in holes of the connection part and body of beam structures. The connection part is arranged in the form of an end plate and a plate element installed perpendicularly and rigidly connected with it, attached by pads to beam structures. The end joint is equipped with a bolt tensioning device, and a dowel is rigidly connected in holes of the end connection part. Dowels may be made from reinforcement of periodical profile and are arranged in the body of wooden beam structures on glue.
EFFECT: higher joint reliability.
6 cl, 8 dwg
FIELD: building, particularly connections specially adapted for particular building parts or for particular building structures and units.
SUBSTANCE: method involved using embedded members made as metal cylindrical cartridges arranged in concrete body of units to be connected in joint area thereof and metal connection member. Cylindrical cartridge interior is previously filled with adhesive composition. One end of connection member is placed in metal cartridge of the first unit to be joined, another end is inserted in that of the second one. Flange is welded to metal cartridge end. Flange is bored at 40° - 50° for the depth of 0.5 - 0.7 of flange thickness and conical flange bore passes into cylindrical one having dimension corresponding to metal connection diameter, which forms fixing clawing funnel. Ratio between inner cartridge diameter and connection member diameter is equal to dc,in/dcm = 1.5 - 2.0, where dc,in is inner cartridge diameter, dcm is metal connection diameter. Wherein resting outline is formed in area of metal cartridge abutment to flange. Resting outline has ledge of not less than 5 mm when connection member diameter is 10 - 30 mm, which prevents shear deformation development, increases squeezing degree and blocks metal connection. Cartridge has length Lc = (10-12)·dcm, which prevents slip of metal connection.
EFFECT: simplified assemblage technology.
FIELD: building, particularly means for connecting building structures.
SUBSTANCE: joining device comprises several similarly sized members overlapped so that non-contacting parts are spaced apart. The members are connected with bolt. Connection parts of each member are formed as rimmed orifice having extension and depression with central aperture. Bend is made on one member side. Extension and depression may be shaped as cone, ball or truncated pyramid and formed on one or both member ends. Bolt has a cavity, outer contour of bolt head mates that of inner depression.
EFFECT: reduced labor inputs for building structure mounting and demounting.
2 cl, 4 dwg
FIELD: building, particularly for forming wooden arches, frames and trusses.
SUBSTANCE: ridge unit comprises adhesive-bonded wooden members, hinge and covering members. Unit is provided with glass-fiber plates defining curvilinear section in plane and glass-fiber semispherical heads arranged in glass-fiber plate centers. Semispherical heads are inserted in depressions made in glass-fiber centering rim. The rim edges are inserted in slots of wooden covering members. Glass fibers in curvilinear plates are oriented along plate height and width of adhesive-bonded wooden member ends. The plates does not project beyond boundaries of above ends.
EFFECT: increased strength and reduced material consumption.
FIELD: building, particularly to produce light building structures, namely in building site.
SUBSTANCE: connection includes ends of members to be connected, tightening bolts with washers. Conical depression and conical boss are formed in washer surfaces facing each other. When nut is tightened on tightening bolt the members are jammed in conical cavity between the washers.
EFFECT: increased load-bearing capacity of the connection.
3 cl, 3 dwg
FIELD: building, particularly to create rod structures of pipes.
SUBSTANCE: butt-joint comprises tubular rod ends, ribs and tightening bolts. The ribs are inserted in cuts made in tubular rods and connected one to another in crossing areas along the full length thereof. Flanges are spaced from tubular rod ends.
EFFECT: reduced flange mass.
2 cl, 4 dwg
FIELD: building, particularly to connect arch members during movable building erection.
SUBSTANCE: joint connection comprises arch member ends with fastening members fixedly connected to arch member ends, cylindrical joint insert with two side covering members connected thereto and tightening bolts. The fastening members are made as pipe cuts. The side covering members are provided with coaxial orifices arranged along a circle. Fastening members pass through the coaxial orifices.
EFFECT: simplified production and increased accuracy of joint connection assemblage.
FIELD: building, particularly to connect rod members of building structure with triangular three-layered roof deck panels.
SUBSTANCE: joint connection comprises three-dimensional hollow member to connect rods of triangular grid. The hollow member is solid and defines hexagon. The hollow member has one truncated end. The hollow member comprises support panel made as round plate with U-shaped spaced apart clips fixedly connected to plate along plate perimeter. The clips are adapted for deck panels connection. Triangular three-layered panels are overlapped and connected one to another. Mounting covering strips are connected to ends of all panels so that one strip end is flush with upper rib surface, another strip end is inserted in U-shaped clip.
EFFECT: increased load-bearing capacity of the structure.
FIELD: building, particularly means to reinforce timber structures along with member connection on head block.
SUBSTANCE: reinforcement unit comprises compressed rod, belt and reinforcing side covering plates. The plates are made of angle bars and provided with transversal diaphragms. Side covering plates enclose belt section corners and pass through slots made in compressed rod.
EFFECT: increased load-bearing capacity, prevention of head block unit deformation and shearing.
SUBSTANCE: pipe junction comprises ends of pipes that are set one in the other, face plug, slots made in the pipe of greater diameter, and connecting member secured to the pipes by welding. The connecting member is made of a ring member mounted at the end of the pipe of smaller diameter, and the slots in the pipe of greater diameter do not reach the end of the pipe.
EFFECT: enhanced strength and simplified manufacturing of the joint.
FIELD: metal truss building, particularly to erect bridge span structures.
SUBSTANCE: joint includes a number of segments and connection pipes. The joint is formed as two stamped halves connected with each other by welds to form cylindrical connection pipes provided with flanges. The flanges are welded to the connection pipe ends.
EFFECT: improved manufacturability and operational reliability.