Dowel joint of wood elements in building structures
SUBSTANCE: invention relates to construction, in particular to joints of wooden structures on cylindrical dowels. Dowel joint of wooden elements includes connected elements, wooden pads and cylindrical dowels installed into previously drilled holes. Cylindrical dowels have longitudinal cone-shaped slots with depth that reduces to dowel ends, where trapezoidal wedges are rigidly fixed with rectangular cross section and width equal to width of slots section, at the same time one side of wedges is arranged as geared.
EFFECT: reduced labour intensiveness of making joint and increasing its rigidity.
3 cl, 4 dwg
The invention relates to construction and can be used for connections of wooden construction elements, including connections, to meet the requirements of besteality (radioprogramas), increased corrosion resistance, demagnetise.
You know the connection of wooden structural members, including the joined items, wooden plates and steel or fiberglass cylindrical pins that are installed in pre-drilled holes (Construction of wood and plastics. Edited Gen. Ed. 4th, revised and enlarged additional M.: stroiizdat, 1975, s, .IV.14).
The disadvantage of this known connection is the necessity of setting coupling navalnyj bolts, the number of which ranges from 25 to 100% of the total number of pins (SNiP II-25-80 "Wooden structure" / Gosstroy of Russia): Federal state unitary enterprise of CSE, 2004, s, p), which increases the complexity of manufacturing and material connections. In addition, in connection with the use of fiberglass cylindrical pins (Construction of wood and plastics. Edited Gen. Ed. 4th, revised and enlarged additional M.: stroiizdat, 1975, s-551, rich) has the following disadvantages:
- the complexity and mnogodelnosti manufacturing navalnyj bolts as using three different molds individual is about to stud bolt, for nuts and washers, and in the machining of workpieces on lathes, milling and drilling machines;
- use a variety of press materials, for example, AG-4C for stud bolt and AG-4B for nuts;
- the use of complicated design (and therefore expensive) molds required for the simultaneous molding of the head, the body of the bolt and thread on its end, for the manufacture of nuts with flange and thread;
- low strength thread, especially the cut in the traditional way, due to the reduced resistance of the thread on the fiberglass rod to shift.
The technical result obtained from the use of the invention is to reduce the complexity of the connection and increase its rigidity.
The problem is solved due to the fact that in nahelem connection of wooden structural members composed of connected elements, wooden plates and cylindrical pins that are installed in pre-drilled holes, cylindrical pins have conical longitudinal grooves with depth, decreasing to the ends of the dowel, which is rigidly fixed trapezoidal wedges rectangular cross-section with a width equal to the width of the cross section of grooves, with one side of the wedges made gear.
In addition, the trapezoidal wedges with a store who have end can be sharpened, and cylindrical pins and trapezoidal wedges may be made of extruded structural fiberglass.
The invention is illustrated in the drawing, in which figure 1 shows a General view navalnogo connections of wooden elements; figure 2 - General view of the cylindrical dowel Assembly; figure 3 is a cylindrical Nagel with a longitudinal tapered grooves; figure 4 is a trapezoidal wedge.
Nagelneu connection of wooden structural members includes the connected elements 1, wooden plates 2, cylindrical pins 3 with a longitudinal tapered grooves trapezoidal wedges 4. Cylindrical pins have conical longitudinal grooves with linearly varying depth, decreasing to the ends of the dowel, which is driven trapezoidal wedges rectangular cross-section with a width equal to the width of the cross section of grooves, having one longitudinal side is smooth and the opposite side of the gear that provides the simplicity and reliability of connection and eliminates the need of setting coupling navalnyj bolts.
Nagelneu connection of wooden construction elements with a wooden lining collected as follows:
on the joined items 1 set wooden plates 2, fixing their position, for example, by means of clamps;
-by means of mechanized construction tool (drill, the drill) caused by marking drill holes for cylindrical pins 3;
cylindrical pins 3 are inserted into drilled holes in the joined elements 1 and wooden plates 2;
- cone-shaped longitudinal grooves in the cylindrical pins 3 at the same time score trapezoidal wedges 4, clamps cylindrical pins 3 into the drilled hole and make the connection tight and permanent.
Due to the serrated sides of the trapezoidal wedges 4, scored in the longitudinal tapered grooves in the cylindrical pins 3, wooden plates 2 are fixed in the project position without any additional installation tie navalnyj bolts. To prevent splitting the wood depending on its hardness and orientation of the slots in relation to the fibers of the trapezius wedges 4 butt hammered into the wood, can be sharpened.
When using cylindrical pins 3 with a longitudinal tapered grooves and trapezoidal wedges 4 structural fiberglass technical result obtained from the use of the invention is achieved:
- by giving the connecting parts simplest configuration without the use of threaded mates;
- simplification and cheapening of moulds for their production;
- by reducing azetidin connecting parts to two.
1. Nagelneu connection of wooden structural members, including the joined items, wooden plates and cylindrical pins that are installed in pre-drilled holes, characterized in that the cylindrical pins have conical longitudinal grooves with depth, decreasing to the ends of the dowel, which is rigidly fixed trapezoidal wedges rectangular cross-section with a width equal to the width of the cross section of grooves, with one side of the wedges made gear.
2. Nagelneu connection of wooden structural members according to claim 1, characterized in that the trapezoidal wedges-side end is pointed.
3. Nagelneu connection of wooden structural members according to claim 1, characterized in that the cylindrical pins and trapezoidal wedges made of extruded structural fiberglass.
SUBSTANCE: invention relates to elements for fixation of insulating panels on bearing base. Holder of insulating material for fixation of insulating panels to beating base, with bushing-like holding rod that pierces insulating panel. At its end there is a holding disk shaped as covering outer side of insulating panel on top. It consists of two parts and is made with the possibility of entering into holding rod with stop anchor, which comprises anchor, anchor extension piece and connection device, which connects anchor extension piece and anchor. Connection device combines anchor extension piece and anchor without possibility of slippage. Specific connection device is formed by transverse rib arranged on anchor extension piece or on anchor and transverse groove that responds to it as arranged in anchor or accordingly on anchor extension piece. At the same time transverse rib and transverse groove are oriented in longitudinal direction of anchor and anchor extension piece.
EFFECT: development of insulating materials holder, which eliminates heat bridges, is easily mounted and requires less costs in manufacturing.
8 cl, 5 dwg
SUBSTANCE: attachment element for concealed attachment of insulating plate to load-carrying structure includes hold-down plate and dowel sleeve adjacent to it and intended for receiving the spacer assembly with head of spacer assembly; at that, dowel sleeve has spacer zone. On lower side of hold-down plate in direction of entry there located are milling devices for milling the insulating plate and a groove for through passage of milled insulating material; at that, milled insulating material is gathered in receiving device. There described is device for burial of attachment element. There described is method of concealed attachment of insulating plate on load-carrying structure.
EFFECT: development of attachment element eliminating the contamination of milling environment.
10 cl, 5 dwg
SUBSTANCE: butt joint includes pillar, coverage plate and capital arranged on plate. Reinforcement frame of plate is arranged in the form of upper and lower grids. Capital is reinforced with grid and longitudinal rods inclined towards plate and joined by transverse rods. Lower ends of longitudinal rods of capital are bent aside from pillar and are installed in plate. Capital is arranged with central part in the form of expanded pillar equipped with stiffening ribs solidly joined to them. Ribs are radially arranged relative to central axis of pillar in longitudinal, transverse and diagonal directions. Ribs are reinforced with spatial frames from bent longitudinal rods that form ribs contours and embrace central part of capital. Ribs are also reinforced with reinforcement grids installed along side faces of ribs and in expanded part of pillar. Lower bent ends of spatial frames of ribs are installed between lower and upper grids of plate and are joined with them. Middle parts of spatial frames of ribs are arranged in capital at different levels relative to each other.
EFFECT: increased bearing capacity, rigidity of butt joint and crack resistance of coverage plate.
2 cl, 4 dwg
SUBSTANCE: method of bolt attachment of pin constructions of thin-wall profiles involves installation of washers and high-strength bolt in the hole made in attached elements. On one side of attached elements there installed is washer with annular protrusions of triangular cross section shape, and on the other side of attached elements there installed is mating washer with annular slots of the cross-section profile similar to that of protrusions; at that, surface area of cross section of washers is taken more than the surface area of loosening of the section of attached element with the hole for the bolt.
EFFECT: increasing carrying capacity of the attachment, simplifying the fabrication of its elements.
3 cl, 3 dwg
SUBSTANCE: invention is related to the field of construction, in particular to butt joint of monolithic slab with column. Butt joint of monolithic slab with column 1 comprises column 1 and ceiling slab 2. Column 1 and ceiling slab 2 comprises reinforcing cages 3 and 4 accordingly. Plates 5 are arranged on reinforcing cage of ceiling slab 2 in direction from column 1 to ceiling slab 2. Plates 5 are arranged in the form of bent section bars and are equipped with stiffening elements 6. Stiffening elements 6 are installed along each plate 5 as pairwise on both sides at least along upper and lower ends of plate 5.
EFFECT: reduced metal intensity of plates by reduction of their weight, simplified design and reduction of the whole unit weight without deterioration of its reliability and bearing capacity.
2 cl, 6 dwg
FIELD: construction industry.
SUBSTANCE: joint includes end edge column sections installed with a gap in a vertical axis. Between these sections there arranged is solid reinforced concrete flooring. Joint includes reinforcing connection elements passed through flooring and combined with closed binder and concreted with concrete. End section of upper column is equipped with precast reinforced concrete insert made from high-strength concrete, class B40-B60, with appropriate sizes. Insert is connected to column in a solid manner. Insert has cavities and vertical through holes to arrange reinforcing connection elements. Reinforcing elements of upper column are passed though holes of insert and located within insert cavity. Reinforcing elements of lower columns are passed through flooring and located in insert cavities overlapped with reinforcing elements of upper column. Reinforcing elements in insert cavities are concreted with high-strength concrete, class B40-B60.
EFFECT: simplifying, increasing reliability and load-carrying capacity of the joint, simplifying erection works and reducing cost of building frame.
6 cl, 7 dwg
SUBSTANCE: concealed cantilevered connection used in couplings between vertical and horizontal building frame elements, in particular, in couplings of concrete factory-made building frame, horizontal element wherein, such as factory-made concrete beam is connected and secured with the vertical element of the frame, such as a factory-made concrete column, by means of load-transmitting connection, thereat said connection contains the first and the second connecting elements, the first one whereof is inserted into the vertical element of the frame, such as a factory-made column, whereat the second connecting element is inserted into the horizontal element of the frame, such as a factory-made beam, thereat cantilevered connection contains coupling adapter for binding - connection of the first and the second connecting elements by means of the above mentioned adapter without any parts standing out from the horizontal element of the frame; the second connecting element has a slot, open from the bottom side, where through a coupling adapter clamp - like part may be introduced into the second connecting element.
EFFECT: creating of new type of concealed cantilevered connection.
9 cl, 10 dwg
SUBSTANCE: invention is related to construction and may be used in manufacture of mobile buildings of different functional purpose. Connection of base and cover frames made of "П"-shaped profiles with wooden stands includes pairwise installation of plates inside profile with ends that protrude beyond profile shelves, fixation of frame beams between plates, installation of stands on beams and their bolt connection by means of planks, which are located with some their sides on beams, and with the other sides - on stands. According to the other version inside "П"-shaped profile there are angle elements installed, and beams are placed on their lower horizontal sides.
EFFECT: better heat insulation of building.
2 cl, 3 dwg
SUBSTANCE: invention is related to the field of construction, in particular to support unit and template for alignment and manufacture of support unit connection element. Support unit of connection of bearing construction metal structures with reinforced structures comprises support element and joined element, which are connected between each other by connection element. Joined element is arranged with end wall and stiffening fin. Connection element is made in the form of armature rods, which are installed in support element vertically in two rows. Rows of armature rods are installed from each other with gap, which is equal to not more than thickness of end side of joined element. Template for alignment and manufacture of support unit connection element comprises joined elements with slots, and also middle insert. Elements are arranged as open in the form of the left and right one. Elements are installed in one plane parallel to each other and are arranged in the form of plates. Slots are arranged in the form of open circle. Middle insert is superimposed on the left and right plates and is connected with them by means of split joint. Centres of open circles of slots of single plate are displaced relative to centers of open circles of slots in the other plate at least by half of these circles diametre. Plates are installed relative to each other with gap.
EFFECT: creation of support unit of bearing construction metal structures, which is able to bear design loads and makes it possible to manufacture and install structures of buildings with high accuracy, including installation of large-span covers on columns of sport complex.
5 cl, 6 dwg
SUBSTANCE: invention is related to ground construction namely to facilities for connection of construction structures, namely, panels to each other mostly for demountable buildings and structures. Butt connection of panels in fabricated buildings, including embedded parts located in wall panels and niches of floor slab panels. At that every connected wall panel is equipped with vertical stands, and their length exceeds panel length by depth of seat in niche of floor slab niche, and in which embedded parts are installed in the form of anchors arranged in the form of plate with bolt rigidly fixed in base of wall panel stand. Embedded parts in slab niche are arranged in the form of rigidly fixed plate with holes for fixation of wall panel anchors, at that it is equipped with additional detachable connection plate with holes coaxial to plate holes, which is rigidly fixed in slab niche for bolts to fix stands of neighbouring wall panels by nuts.
EFFECT: increased efficiency due to reduction of assembly labour-intensiveness, and also realisation of possibility to demount butt connection of fabricated building panels.
FIELD: building, particularly composite reinforced concrete frames of multistory buildings having columns bearing increased load.
SUBSTANCE: butt-joint includes end parts of upper and lower columns of reinforced concrete frame arranged along common vertical axis and having a gap formed between column edges for floor structure installation in-between. End column parts are provided with transversal steel sheets secured to columns. Columns have pockets formed on column sides near ends thereof. Ends of reinforcement bars extending out of columns and inserted in floor structure are formed as threaded pins connected by nuts to transversal steel sheets. Located in mortar between sheets are aligner nuts directly supporting upper column. Pockets are caulked by fast-hardening fine concrete. Method of butt-joint forming includes locating and securing lower column; arranging floor structure above lower column; fixing threaded pins on upper end of lower column; securing mounting fixing frame above floor structure on upper pin ends; removing above frame after floor structure concrete hardening up to obtaining demanded strength thereof; screwing aligner nuts on threaded pins; installing upper column on lower one and adjusting upper column in demanded vertical position and by above marks with the use of aligner nuts; displacing upper column upwards, pouring mortar on lower column end and immediately putting upper column on non-hardened mortar so that upper column rests upon aligner nuts; removing excessive mortar from under the column; finally fixing upper column from upper end thereof by nuts arranged in upper column pockets and caulking pockets with fast-hardening fine concrete.
EFFECT: increased butt-joint reliability and load-bearing capacity, increased manufacture reliability of building frame erection.
2 cl, 4 dwg
FIELD: building, particularly multistory buildings having columns bearing increased load applied thereto.
SUBSTANCE: column comprises concrete beam in which main longitudinal reinforcement bars are arranged along the full column length. Included in concrete beam are collars and auxiliary reinforcement made as welded nettings located at ends. Transversal steel sheets are located at column ends and connected to column beam by anchor rods. Rods are not connected with end sheets and have no contact points with above sheets. Secured to steel sheets are vertical steel angle members forming pockets located on steel sheets at column sides. Pockets are symmetric about main column axes. Created in pockets of end sheets are orifices for arranging screw connections to provide joint with upper and lower column. Column may be made as prismatic or cylindrical stem. Transversal steel sheets connected to column ends under vertical angle members in pocket areas may have increased thickness and comprise additional plates. Each column formed as multi-story one has through channels for cast-in-place building floor structures arrangement in column. Column butt-joints including column end parts are provided with transversal sheets connected to ends thereof having centering lining. Transversal steel sheets have shaped edges. Gap between transversal steel sheets is filled with mortar. Butt-joint includes pockets formed at column ends. Steel sheets have orifices in which pins with threads are inserted. Pins are secured on end sheets with nuts. Located in mortar between sheets are aligner nuts. Pockets are caulked by fast-hardening fine concrete. Method of butt-joint forming includes locating and securing lower column; fixing threaded pins on upper end of lower column; screwing aligner nuts on threaded pins; arranging aligner nuts in design position; installing upper column in two stages coaxially above lower column so that upper column end abuts that of lower one and connecting columns. The first stage of upper column installation includes supporting column on aligner nuts; adjusting upper column position up to obtaining demanded position in horizontal and vertical planes. The second stage involves displacing upper column upwards, pouring mortar on lower column end and immediately putting upper column on non-hardened mortar so that upper column rests upon aligner nuts; fixing upper column from upper end thereof by nuts arranged in upper column pockets; caulking pockets with fast-hardening fine concrete and rubbing butt-joint surfaces opposite to sheets with mortar.
EFFECT: increased reliability and load-bearing capacity of reinforced concrete column and butt-joint, increased manufacture column reliability.
7 cl, 9 dwg
FIELD: building, particularly to perform building design and erection.
SUBSTANCE: joint includes wall panels, lower and upper reinforced concrete members. Each member comprises two channels terminated by projected conical pipe in lower part of upper member and by cylindrical pipe in upper part of lower member. Cylindrical pipe has outer rubber ring. Pipe cuts are welded to reinforced structure. Reinforced concrete members are connected to wall panels by means of embedded members.
EFFECT: reduced metal consumption, improved heat properties of joint.
FIELD: connections for building structures, particularly butt-joints.
SUBSTANCE: method involves connecting reinforcement extensions of reinforced columns with the use of cylindrical metal head in which reinforcement extensions are inserted and filling head with adhesive. Ratio between head diameter and reinforcement extension diameter is equal to dh/dr = (4·δh)/(M·Lh), where Lh - head length, dh - head diameter, dr - reinforcement extension diameter, δh - head wall thickness, M = dr/Lh.
EFFECT: simplified technology of column assemblage, increased productivity.
FIELD: construction, particularly for manufacturing timber load-bearing structures of bar members.
SUBSTANCE: connection device comprises wooden members to be connected having jointing ends with serrated surfaces, wooden serrated covering plates, releasable metal ring composed of two U-shaped members having orifices for bolt joint and compensating spring and plates. When connection device is mounted with the use of bolt joint transversal compression force is created and maintained by means of compensating springs. Flat springs are installed in bolt joint to provide necessary compression forces in vertical plane.
EFFECT: increased service life.
FIELD: device for fastening or securing constructional members.
SUBSTANCE: device comprises at least one sliding wedge fastening member, lead screw, and coupling member with the treaded end arranged inside the object to be secured for permitting interaction. The wedge fastening member has shaped transverse opening defined by the through cylindrical opening and conjugated longitudinal slot whose edges define the wedge surface which passes throughout it at an inclination to the cylindrical through opening. The head part of the coupling member has the conical bearing surface which is in a contact with the edges of the longitudinal slot. The lead screw is set in the threaded socket in the wedge fastening member made on the end closest to the through cylindrical opening. The sliding fastening member and coupling member are mounted in the dummy guiding cylindrical holes made in the objects to be secured, with their axes intersecting in the mutually perpendicular directions. The sliding wedge fastening member is made of a cylinder whose side is provided with a beveled chamfering that passes through the edges of the shaped opening and defines a wedge-shaped surface. The face of the sliding wedge fastening member is provided with the setting slot from the side of the threaded socket. The coupling member is made of cylindrical rod provided with the head part and groove that defines a neck with the bearing surface. The screw is arranged along the axis of the fastening member for permitting interaction with the neck of the coupling member.
EFFECT: expanded functional capabilities and reliability.
6 cl, 9 dwg
FIELD: building, particularly brackets to connect sheet material to support structure.
SUBSTANCE: fastening device to connect sheet material to support posts and beams provided with at least one inner longitudinal groove having cut opened outwards and adapted to connect article to be mounted has fastening end to connect the device to support posts or beams. The fastening end is shaped as the first flat plate. The first flat plate has thickness less than opened longitudinal groove cut width. The first plate has outer edge having fastening groove parallel to outer edge thereof. The fastening groove has width exceeding support post or beam material thickness in cut area. The bracket is provided with the second plate, which is dissymmetrical to the first one and adapted to be connected with the first plate to provide air-tight connection between the first and the second plates, as well as with longitudinal groove.
EFFECT: increased efficiency.
7 cl, 9 dwg
FIELD: building, particularly connections for building structures in general.
SUBSTANCE: attachment unit comprises erection loop, reinforcement bars and embedded members. Lower inner load-bearing wall is connected with floor panel by means of metal plate secured to embedded member of lower load-bearing wall and to embedded member of flooring panel with the use of two welded joints. Lower inner load-bearing wall is connected with upper load-bearing wall by means of elongated erection loop fastened to embedded member of upper inner load-bearing wall through of weld seam. Floor panels are connected with each other by two metal bars connected to embedded members of floor panels by mean of weld seams.
EFFECT: increased seismic stability, reliability and service life of building structures.
FIELD: building, particularly to assemble precast or composite members during residential, public and office building erection, particularly in the case of jointless frame without girders and joints usage.
SUBSTANCE: junction unit comprises composite floor panel having orifice for column receiving and main reinforcement, column with exposed load-carrying reinforcement arranged at junction unit and trapezoid steel connection members. Floor panel orifice edges are inclined at 60° to lower horizontal panel plane and form guiding means for column receiving. The connection members are mounted in floor panel body and have ribs located at major trapeze base supported by the column, as well as ribs located at minor trapeze base provided with slots for main reinforcement mounting. Floor panel also has additional reinforcement passing through monolithic concrete of junction unit. Connection members are located so that one connection member is installed in column receiving orifice edge center or two connection members are connected to edges of two opposite column receiving orifice edges.
EFFECT: increased technological efficiency of building erection.
3 cl, 4 dwg
FIELD: industrial and civil construction, particularly framed building erection.
SUBSTANCE: joint comprises bearing girth parts and column shoulder part, embedded members of support sections of shoulder part and support sections of bearing girth part, connecting reinforcement bars of column and connecting main reinforcement bars of girder. Embedded part of the column is made as hydraulic device arranged on side column surface in area of column connection with girder and at support girder surface. The hydraulic device comprises two sealed lenticular members filled with liquid and connected with each other through pipe. Connecting reinforcement bars of the column and connecting main reinforcement bars of upper girth part are welded to each other and pre-stressed.
EFFECT: reduced reinforcement consumption due to limit equilibrium method and high-strength pre-stressed reinforcement usage.