Method to connect belt rod elements of truss structure
SUBSTANCE: method to connect belt rod elements of a truss structure, according to which belt rod elements are connected to appropriate connection rod elements and/or with appropriate belt rod elements of the truss section. Ends of all rod elements are made with self-stopping thread. In each pair of connected elements thread at their ends is made as differently directed, and their ends are placed in contact to each other due to turning of tightening connection couplings onto ends of elements.
EFFECT: increased reliability of connection, simplified assembly of a structure.
2 cl, 2 dwg
The invention relates to truss structures containing belt trusses are interconnected by means of intermediate elements.
A known method of connecting belt truss element truss on which the belt trusses are connected with the corresponding connecting rod elements and/or with the appropriate belt core elements of the truss section. For the interconnection of elements are wedge connection (see RF Patent N 20039887 from 20.07.1995).
The disadvantage of this method is the complexity of the connection process, due to the complexity of the positioning rod elements relative to each other.
The technical result, which is aimed invention is to improve reliability and simplify installation of the relevant structures.
This technical result is achieved in that the connection of the belt truss element truss on which the belt trusses are connected with the corresponding connecting rod elements and/or with the appropriate belt truss elements truss sections, the ends of all the core elements perform with self-locking threaded, with each pair of connected e the cops threaded at their ends carry out in different directions, and their ends come in contact with each other due to the catching-up on the ends of the elements tightening couplings.
Core elements in one of the variants perform tubular and are connected by welding with threaded inserts.
The invention is illustrated by drawings.
In Fig.1 schematically shows a portion of a truss of Fig.2 - node connection of belt elements together.
Truss belt contains the elements 1, interconnected elements 2. Belt elements 1 made of pipes with welded at their ends threaded inserts 3.
When connecting belt elements 1 to each other at a threaded insert 3 with multidirectional Sanatornaya thread brings the coupling 4 to contact the ends of the threaded inserts 3. The coupling 4 are sections with opposite thread. The contact ends of the threaded inserts 3 further enhances the rigidity of the connection, and hence the rigidity of the metal. The combination of using Sanatornaya thread and contact the ends of the threaded inserts 3 significantly improves the reliability of connection, because it increases the probability that the connection is in working condition for the entire period of operation.
1. The manner of connecting the belt truss element truss, in which p is clear core elements are combined with the corresponding connecting rod elements and/or with the appropriate belt truss elements truss sections, characterized in that the ends of all the core elements perform with self-locking threaded, with each pair of connected elements threaded on their ends fulfill different directions, and their ends come in contact with each other due to the catching-up on the ends of the elements tightening couplings.
2. The method according to p. 1, characterized in that the rod elements are tubular and are connected by welding with threaded inserts.
SUBSTANCE: nodal connection includes connection angles rigidly fixed to vertical walls of rods with end plugs and shelves joined on bolts. Same connection angles with shelves joined by bolts are rigidly fixed on horizontal walls (shelves) of rods. At the same time vertical and horizontal walls of connected rod elements in the range of their attachment to leaves of connection angles are reinforced from inside with membranes arranged in parallel to end plugs.
EFFECT: increased bearing capacity of nodal connection.
SUBSTANCE: connection method involves overlapping of ends of thin-walled elements with walls on a sheet gusset plate, installation of the central bolt in the pre-drilled holes in the walls of the thin-walled elements and the gusset plate, setting of the required connection angle, final tightening of the central bolt and installation of self-drilling bolts. Before installing the centre bolt between the walls of the thin-walled elements, a nut and a head of the central bolt, convex sheet parts are installed, and final tightening of the central bolt is stopped when the edges of the sheet parts are thrust against the shelves of the connected thin-walled elements.
EFFECT: increase of the assembly bearing capacity.
2 cl, 5 dwg
SUBSTANCE: mounting assembly of a framework made of channel beams contains the rising upper flange made of two channel beams or C-shaped profiles, oriented with their walls to each other and connected to beams, with location of the bottom flange made of two channel beams between the channel beams of the rising upper flange and connected by bolts or welding. The mounting assembly has two trapezoidal sheet gusset plates or wedge-shaped volume gusset plates in the form of a bent channel beam of variable height, attached by vertical planes to webs of the channel beams of the lower framework flange and rested against the walls or bottom webs of the channel beams of the upper flange.
EFFECT: increase of the bearing capacity of frameworks made of the channel beams by reducing the bending stresses in the framework flanges.
SUBSTANCE: nodal joint of a rod space structure includes discs tightened with a pin pulled via central holes of discs. Between the discs there are tips of belt and diagonal rods. The nodal joint is equipped with a binding ring arranged between discs, coaxially with them, with a pin pulled through it. Each tip of the belt rod is made in the form of a hook, the horn of which is directed towards one of the discs and comprises an axis arranged perpendicularly to the axis of the belt rod, and each tip of the diagonal rod is made in the form of a hook, the horn of which is directed towards the other disc and comprises an axis arranged as inclined towards the axis of the diagonal rod. Horns of all hooks are arranged in the hole of the binding ring around the pin.
EFFECT: reduced labour intensiveness and higher reliability of a nodal joint.
9 cl, 6 dwg
SUBSTANCE: invention relates to the field of construction, namely, to units of connection of tubular rods, which are implemented when manufacturing supports of power transmission lines, cellular communication supports, etc. The unit of coupling of tubular rods includes an upper single tubular rod, to the end of which a horizontal flange is fixed, and a response flange, to which at the angle there are ends of lower tubular rods fixed. The response flange is made as separate for each lower tubular rod. Besides, at the end of each tubular rod there are two vertical flanges on each one, being tightened by bolts with similar flanges of adjacent ends of the lower tubular rods. The horizontal and response flanges along the perimeter are tightened by bolts.
EFFECT: increased stiffness of a unit.
2 cl, 4 dwg
SUBSTANCE: invention relates to a connection head for a system of assembly of structures with one upper end and one lower end. A middle longitudinal axis is stretching between the upper and lower end, and at least one connection flange arranged between upper and lower end with the support surface for beam adjacency. According to the invention the connection flange and the support surface have side displacement relative to the radial plane to the longitudinal axis, and the support surface is arranged in parallel to the radial plane.
EFFECT: improved design.
4 cl, 9 dwg
SUBSTANCE: girder supporting joint on truss includes upper truss band and adjoining diagonal braces with misaligned axes. In a truss joint, a girder rests on truss band with eccentricity causing the joint to rotate in a direction opposite to rotation caused by brace misalignment. Crossing point of upper band axis with compressed diagonal brace axis is considered to be the centre of truss joint rotation, and girder support eccentricity is e=M/P where M is the joint torque in girder generated by forces in diagonal braces adjoining the band; P is a force exerted by the girder on upper truss band.
EFFECT: reduced material consumption per truss in girder coverage.
SUBSTANCE: joint comprises ends of connected elements with separate flanges along the height of the cross section and bracing bolts. A curvilinear sheet gusset is placed between separate flanges. The gusset is fixed by the ends to flanges, and along the convex surface - to the preliminarily cut cross section of the connected elements.
EFFECT: increased bearing capacity of a connection.
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.
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
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.