Raised floor panel low profile with metal support structure

 

(57) Abstract:

The invention relates to flooring systems designed for areas in which to place the data processing equipment, such as computer rooms and offices where a false floor above the existing floor. Raised floor for placement over existing floors contains a panel, bearing capacity, and non-flammable means for detaching the front panel from the existing floor with the inclusion of the spacer. The spacer has a Central section for supporting the panels, load-bearing, from which hangs a lot of shoulders, siteplease with the base during use of the resulting support structure. The invention can be placed under the raised floor pipes and other communications, and to improve fire safety and permissible load on the structure. 4 C. and 13 C.p. f-crystals, 12 ill.

The invention relates to flooring systems designed especially for areas in which to place the equipment for processing of data, such as data centers, computer rooms and offices where the false floor above the existing floor. Such false floors or raised panel floors usually consist of a removable pan is to lay down pipelines, cables, wires and other communications computers.

There are many systems of false floors, including those used adjustable struts at each corner of the panel as a support. Support columns for such systems are only in the corners of the panels, which are usually square with sides of 500 - 600 mm, Thus the strength and mechanical stability of the sexes should be achieved through the use of very thick panels, typically with a thickness of 30 - 40 mm, sometimes including rafters, which transmit the load of the racks. Because of the loss of useful height of these types of false floors require a total height of 150 - 200 mm, which is incompatible with the low ceilings in existing buildings and the need to build new facilities with the added height. As an example, if we assume that there is a false 200 mm floor on each level tridtsatiminutnogo buildings, the required additional height is six meters, i.e., corresponds to two floors. The construction of such a false floor in existing buildings requires construction of ramps and steps, as well as protective barriers against fire and sound. Finally, these designs are sometimes noisy and act as resonators. In any case, palaiokastritsa.

In U.S. patent N 5052157 class. E 04 B 5/00, 1991 describes a system of laying floors, designed for areas that set up the equipment for data processing. The system includes raised floor, containing a panel, load bearing and non-combustible means for detaching the front panel from the existing floor. It uses a spacer having a Central part to a support panel. However, in this patent N 5052157 disclosed and illustrated by the construction of parts of the system by molding with heating or injection molded plastic material, for example polystyrene, polyethylene, polypropylene or acrylonitrilebutadienestyrene (ABS). Although such materials are the best, however there are problems associated with their use. First, load floors, using such plastic material is partially a function of the number and the type of plastic material and may be difficult to achieve high permissible load at an acceptable cost and without increasing the weight. Further restrictions on fire safety often eliminate the use of plastic structures as elements of the raised floor panel.

The use of metal in the construction of p is ω patent specified, as described there, the design of the base plate and spacers, made in a single piece, can be stamped from sheet metal and that the base plate in a separate execution of the base plate and spacers in accordance with the invention can be made of thin galvanized sheet steel. However, in this patent is not disclosed how to make any of the elements of the base plate or bars of metal. In addition, the stamping of a single design of the base plate and spacers made of sheet metal according to patent N 5052157 is probably impossible due to the distance that the metal must be stamped to form a structure with spacers. In the production of individual design with spacers according to the said patent will also be faced with similar problems and therefore this patent does not even propose to use metal for this design, only it says that "these spacers can be made of any material, but the preferred acrylonitrilebutadienestyrene received injection molding". Separate metal spacers having a continuous surface, hollow design of the spacers in the form of a truncated cone, according to the patent N 5052157 will also ing pads or other elements to achieve engagement with the base plate.

In various other known systems raised panel or false floors apply metal elements, but many of these systems also use combustible materials, but they are expensive, difficult to install, they are bad in operation, raise the floor excessively, do not allow to place respectively pipelines or other materials that must be placed under the raised floor or they have other disadvantages. Thus there is a need to create a system of raised floor panel low profile, using elements that are compatible with strict fire safety laws, which can offer high load capacity and eliminate other disadvantages of the known systems.

The invention aims to remedy these disadvantages and to create a more efficient and effective methods and means of construction of raised floors.

The problem is solved, in particular, due to the fact that in known high floor for placement over existing floors containing panel, bearing capacity, and non-flammable means for detaching the front panel, load-bearing, from the existing floor with the inclusion of spacers having a cent is with the center section.

Further object of the invention is solved due to the fact that in the known reference structure that contains the base plate and non-combustible support with the inclusion of spacers having a Central section, there are many hanging down from the center section of the shoulders which engage with the base during use of the support structure.

The objective of the invention is also solved by the fact that in the system of flooring that contains the base plate having many holes, the spacer with the inclusion of the Central section, having a groove and panel containing means for engagement with the groove during use of the flooring system, there are many hanging down from the center section of shoulders, each shoulder forming means to enter in one of the many holes.

In the system of the flooring of the base plate and the spacer are made of sheet metal, and each arm includes a plate that extends across the width and is curved with the radius decreases along the line between the Central section and the input tool. Each arm also has two generally vertical edges, and at least one of the edges is rolled.

The relative sizes of the holes and input tools

In the system of flooring base plate may be made of sheet metal with a notch adjacent to each of the many holes, and the input means may be a foot inserted through one of the holes and bent to the location of her flat on the base within the recess adjacent to the one hole.

Additionally, the flooring system may include a means for electrical connection of adjacent metal base plates, means for attaching the base plate to the floor, means securing the panels to the spacer and a means to facilitate the partition of the base plate.

It is desirable in the system of flooring to make the base plate and the spacer sheet metal, each shoulder includes a plate that is extended in width and is curved with decreasing radius along the line between the Central section and means of input, then each shoulder has two in a common vertical edges, and at least one of the edges rolled, the relative sizes of the holes and I provide landing with friction between the input means and each of the holes, the base plate has a recess adjacent to each of the many holes and the input tool is a foot, wstawieniem.

Additionally, the flooring system may include a means for electrical connection of adjacent base plates made of metal; means mounting the base plate to the floor; a means of attaching the panel to the spacer, and means for separating the section of the base plate.

The objective of the invention is also solved by creating a method of manufacturing a support, which includes manufacturing a preform containing the center section and lots of shoulders projecting from the Central section, bending the edges of the shoulders for the formation of the flanges, as well as flexion of the shoulders so that they hung from the center section.

In this implementation of the method further bend each arm between the flanges, and also form at least one hole for the screw in the recess in the Central section for receiving screws for attaching the plate to the support.

In Fig. 1 shows a three-dimensional image in the future of the system raised floor panel in accordance with the invention, showing the floor panel, consisting of two assembled blocks of base plates and spacers lying on the floor; Fig. 2 is a perspective view of part of the assembled base plate and spacers under the IG. 2 prior to Assembly; Fig. 4 is a view in transverse section of the assembled base plate and spacers in the plane 4 - 4 of Fig. 2; Fig. 5 is a view in transverse section of a part of the spacer represented along the curve 5 of Fig. 4; Fig. 6 is a view in transverse section of a part of the spacer of Fig. 5 shows the receiving floor panel of Fig. 7 is a view in plan of the base plate and the spacer according to Fig. 2, illustrated below the support plate; Fig. 8 is a view in plan of the base plate according to Fig. 2 to receive the spacer of Fig. 9 - 12 is a perspective view showing the formation of the spacers shown in Fig. 2.

Fig. 1 shows the construction of the flooring system 1 in accordance with the invention. The system 1 generally includes at least one support plate 2, to which attach the spacers 3, and one or more panels 4 sex. Spacers 3 support the floor panel 4 over the base plate 2, allowing you to form panels 4 false floor or raised floor under which to lay the pipelines, cables or other connecting elements.

As shown in Fig. 1, a base plate 2 are designed to fit on the existing floor F. it is Possible to apply fasteners, such as nails 5, for their penetration into the floor F through the holes 6 and for attaching the support is, However, such fasteners are not required, since the support plate 2 and many existing floors F have a coefficient of friction sufficient to hold the base plates 2 in place of the normal load. While using the support plate 2 are usually placed next in the straight configuration over the entire area of the existing floor F to reduce the possibility of replacing one base plate 2 relative to the others. Stacking metal base plates 2 next also provides electrical conductivity throughout the affected area, increasing, for example, the existing ground plane. To improve the ability of the system grounding 1 some versions of the base plate 2 includes metal pads 7, projecting beyond the edges 8 and 9 of the base plate 2, and which can be placed adjacent the support plate.

Although each of the base plates shown in Fig.1, includes eight equally spaced spacers 3, but on the base plate 2 can accommodate large or fewer spacers 3, and the distance between the spacers can be changed when required. The support plate 2 can be further weaken to simplify its division into many parts. Fig. 1 shows the perforation 10, dividing the length L of the base plate 2, for example the STI technique will understand that the support plate 2 can be reduced in other places and other ways to obtain different shapes and sizes.

The baseplate 2 is usually made of metal, such as galvanized steel, and some versions of its execution it has a thickness of approximately of 0.20" (0.5 mm). Because it takes spacers 3, the base plate 2 includes a number of holes 12 into which insert spacers 3. Fig. 3 and 7 show details of these openings 12, as shown respectively on the upper (13) and lower (14) surfaces of the base plate 2.

Fig. 1 - 5, 6 - 7 and 9 - 12 show in detail the details of the spacers 3. Spacers 3, in accordance with the invention can first be cut from sheet metal for receiving the workpiece 15, as shown in Fig. 9. Although the workpiece 15 can be made of galvanized steel with a thickness of approximately 0,030" (0.7 mm), however, it is possible to use other materials and other thicknesses if required. However, the blank 15 includes a Central section 16, which are approximately at intervals of 90ocorresponding to the neck 17 and shoulder 18. Shoulders 18, which extend from the neck 17, the end tabs 19 of such form that they could be accepted by the holes 12.

After making C the La receiving abutting portions of the panels 4 sex. The groove 20 parts of the neck 17, which support the floor panel 4, on four segments 90A - D, each of which has a hole 21 (Fig. 11) in a conical recess for receiving a fastener, such as screws 22. The conical recess causes the hole to close when tightening the screw 22, thereby improving its ability to retain the screw 22 (and the floor panel 4) in place. In addition, as shown in Fig. 11, the edges 23 of the shoulders 18 can be profilewhat to achieve superior load bearing capacity. After implementation of this shoulders 18 bend an angle of about 90oso that they hung from the sectors 90 a-D, and bent transversely of their length with a curvature which increases in radius gradually from sectors 90 a-D to the legs, forming the spacer 3 with the configuration in the form of a truncated cone.

In Fig.3 shows the installation of the spacers 3 on the base plate 2. As shown in Fig. 3 feet 19 are centered with the holes 12 in the base plate 2 and are inserted in them. Because the maximum width X of each of the legs 19 is slightly greater than the width of The corresponding opening 12, the input of the tabs 19 in the hole 12 creates a landing with friction, which helps to hold in place the spacer 3. After it inserts a tab 19 is bent to be located on the lower pontico with the bottom surface 14 of base plate 2 at the time of application. Or you may need to notch 24 was slightly less depth than the thickness of the legs 19, the Assembly of the base plate 2 and the spacers 3 in accordance with the invention, will actually lie partially on the legs 19, whereby you will be guaranteed a solid hold of the legs 19 on the result from the load floor system 1. During the Assembly of the shoulders 18 can optionally compress (compress) inward slightly so that the tabs 19 are more easily included in the opening 12. Elastic aftereffect shoulders 18 contributes additionally to hold the spacers 3 in place against the support plate 2 especially when the legs bend 3.

Panel 4 floor are usually square or rectangular plate, intended for laying nearby. The lower side of each panel 4 may be a layer 25 of fiberglass or other material for sound proofing and insulation. Each panel 4 is connected by edges 26, which are received and engages with various cross-shaped grooves 20 for the formation of the complete system 1 raised floor throughout the damaged area. If you want additional stability for the system 1 floor, the screws 22 (usually threaded sheet metal) can be inserted through the holes in the Ola uniform height above the existing floor F, since the cross-shaped groove 20 and sector 90 a-D of each of the spacers 3 is capable of supporting the abutment corners 28 as, for example, four panels 4 sex. Therefore, specialists in the art will understand that each segment of the cross-shaped grooves 20 in the construction shown in Fig. 1, has a thickness at least twice the thickness of the flange 16.

Fig. 4, 5 and 6 show the chamfer 29 surrounding each hole 21 of the spacer 3. Chamfer 29 simplify the input of the screws 22 into the holes 21 and allow you to eliminate the protrusion of the head 30 of the screw above the upper surfaces 31 of the panels 4 sex. Also chamfer 29 allow the holes 21 to be compressed during tightening of the screws 22, reinforcing the connection between the floor panels 4 and the spacers 3. As a result of this and other features of the present invention, the flooring system 1 provides for obtaining non-flammable raised floor with a significant load. However, the description is intended for purposes of illustration, explanation and disclosure of the specific performances of the present invention. As should be clear to the specialist in the scope of the invention modifications and changes in these versions.

1. Raised floor for placement over existing boatvoyage floor with the inclusion of spacers, having a Central section for supporting the panels, load-bearing, characterized in that the Central section is mixed lots shoulders.

2. Supporting structure containing the base plate and non-combustible support with the inclusion of spacers having a Central section, wherein the Central section hangs many shoulders that engage with the base during use of the support structure.

3. The system of flooring that contains the base plate having many holes, the spacer with the inclusion of the Central section, having a groove and panel containing means for engagement with the groove during use of the flooring system, characterized in that the Central part of the eagle there is a lot of shoulders, each shoulder forming means to enter in one of the many holes.

4. The system under item 3, characterized in that the base plate and the spacer are made of sheet metal.

5. The system under item 4, wherein each arm includes a plate that extends across the width and is curved with the radius decreases along the line between the Central section and means of entry.

6. The system under item 5, wherein each shoulder has demo on p. 3, characterized in that the relative sizes of the holes and input tools provide landing with friction between the input means and each of the holes.

8. The system under item 3, characterized in that the base plate is made of sheet metal with a notch adjacent to each of the many holes, and means entering the foot is inserted through one of the holes and bent to the location of her flat on the base within the recess adjacent to the one hole.

9. The system under item 3, characterized in that it further comprises a means for electrical connection of adjacent metal base plates.

10. The system under item 3, characterized in that it further includes means for attaching the base plate to the floor.

11. The system under item 3, characterized in that it further includes means for fastening the panels to the spacer.

12. The system under item 3, characterized in that it further comprises a means to facilitate the partition of the base plate.

13. The system under item 3, characterized in that the base plate and the spacer are made of sheet metal, each arm includes a plate that is extended in width and is curved with decreasing radius along the line between the tzera one of the edges rolled, the relative sizes of the holes and I provide landing with friction between the input means and each of the holes, the base plate has a recess adjacent to each of the many holes and the input tool is a foot inserted through one of the holes and bent to the location of her flat on the plate within the recess adjacent to the one hole.

14. System on p. 13, characterized in that it further comprises a means for electrical connection of adjacent base plates made of metal, means mounting the base plate to the floor, means for fastening the panel to the spacer, and means for separating the section of the base plate.

15. A method of manufacturing a support, characterized in that it includes a stage in which made preparation containing the center section and lots of shoulders projecting from the Central section, bend the edges of the shoulders for the formation of the flanges and bend the shoulders so that they hung from the center section.

16. The method according to p. 15, characterized in that it further bend each arm between the flanges.

17. The method according to p. 16, characterized in that it further comprise at least one hole for the screw in the recess at the center of the

 

Same patents:

The invention relates to the field of construction and can be used in spatial coverages of buildings of different directions

Frame building // 2112117
The invention relates to the construction, in particular frameless buildings social and industrial

The invention relates to the construction and can be used in the construction of precast-monolithic floors of residential, public and industrial buildings

The invention relates to the field of construction and can be used in the production of floor slabs and pavements, performing load-bearing, sound and heat function

The invention relates to building structures and can be used as cover for civil, public and industrial buildings, as well as canopies

The invention relates to a ribbed plate for complex panel beams, and the profile of this plate consists of protruding ribs formed essentially flat plate, and the surface of the upper flange edges is subjected to shaping treatment (profiling) in order to guarantee the best coupling between the ribbed plate and the concrete complex panel overlap

The invention relates to building structures, particularly concrete floor slabs of buildings, road slabs, reinforced concrete core carrier beams industrial buildings, etc

The invention relates to building structures and can be used for the construction and reconstruction of buildings, for example, in low-rise construction

Concrete slab cover // 2082858
The invention relates to the construction, in particular for precast concrete structures for flat roofs and floors with high operational load

FIELD: building, particularly joint between columns and floor panels of multi-story civil buildings having cast-in-place girderless frame.

SUBSTANCE: method involves providing horizontal collar plate with central orifice equal to outer perimeter of working corner reinforcing column rods and with a number of rectangular orifices located along plate perimeter; placing above plate on column so that plate extends a distance h from column perimeter from each side thereof, wherein h is equal to floor panel thickness. Horizontal plate has extensions having vertical suspension straps directed perpendicular to column perimeter and welded thereto at an angle of 60o into the joint. Vertical suspension straps are rigidly connected to upper and lower rods of main floor reinforcement extending perpendicular one to another and form three-dimensional joint frame.

EFFECT: increased load-bearing capacity of joint connecting floor panel with column, reduced operational costs.

4 dwg

FIELD: building, particularly building frames.

SUBSTANCE: frame comprises columns which are composite through height thereof and grouted one with another and with over-column floor panels and with inter-column floor panels. Over-column and inter-column are flat and have shoulders and transversal reinforcement loop extensions oriented in vertical direction. Shoulders and reinforcement loop extensions are made on panel ribs. Shoulders are formed in lower rib part of only one of adjacent panels. Reinforcement loop extensions have lengths not exceeding shoulder width and mounted in floor panels and overlapped in vertical plane of adjacent panels. Separate support seats are formed on ribs of over-column panels in lower parts thereof. Consoles mating them are made in upper part of longitudinal ribs of adjacent inter-column panels. Support seats and consoles are located in panel plane. Support seats and consoles have lengths equal to shoulder width.

EFFECT: simplified building erection.

4 cl, 6 dwg

FIELD: building, particularly low vault structures for civil and industrial buildings and resource-saving construction methods.

SUBSTANCE: composite vault structure comprises reinforced concrete support girders made as anchor wall integrally formed with support ledge and thin vault members covering the full span length and having ribs rigidly secured to the girders. The girders are connected one to another with tie members formed as paired ropes arranged on lower outer extensions of longitudinal ribs, anchored through orifices made along outer edge of support wall and grouted with fine concrete. Grouting layer is made of structural light-weight concrete and is continuous over the full vault surface. Reinforcing netting is secured on horizontal upper edge thereof. Method of composite vault erection involves forming support girders and vault members with the use of special high-strength and light-weight high-density concrete mixes; simultaneous mounting all vault members in parallel one to another over all spans along with joining all connection members with the use of embedded parts and welding mounting loops; grouting joint seams with cement-and-polymeric filling; fixing and loading paired ropes in groups; simultaneous grouting thereof in vertical joint seams between longitudinal ribs of vault members with fine concrete; performing connection grouting of all vault components after reinforcement netting fixation with the use of light-weight cement-and-polymeric concrete mix.

EFFECT: reduced material consumption, decreased height, increased load-bearing capacity, reduced time, power and labor inputs.

10 cl, 12 dwg

FIELD: building, particularly to erect reinforced concrete buildings and structures.

SUBSTANCE: method of reinforcement rope tightening along with prestressing floor structure in two transversal planes involves connecting floor panels with columns by compressing the panels through the columns; tightening the ropes in one operation through bendable pins, which are inserted in holes before rope tightening. The holes are made in edge girders and floor panels. Bendable pins are secured in the holes without concreting thereof and with the use of rigid clamps, which prevent pin rotation. The clamps press the bendable pins to upper hole parts with force equivalent to 50:300 kg.

EFFECT: reduced time of building erection.

4 dwg

FIELD: building, particularly three-dimensional structures used as cover and floor panels in civil, public and industrial buildings.

SUBSTANCE: structure has thin-walled three-dimensionally shaped members of unified shapes. The members are made of thin-walled roll steel with thickness t=0.5-3.0 mm. Steel strips are bent in opposite directions along right-handed and left-handed screw lines and connected one to another along congruent edges. Each next member to be connected to the structure is bent in opposite direction in comparison with previous one.

EFFECT: possibility of in-line building structure production by cold profiling with the use of wasteless perforation, increased labor productivity, reduced material consumption and labor inputs, elimination of separate rods connection in structure units, reduced number of location and starting marks, increased assemblage processibility.

4 dwg

FIELD: building, particularly joints between wall panels and floor panels in composite residential, civil, industrial and other buildings and building structures.

SUBSTANCE: joint includes hollow floor panels supported by inner load-bearing wall panels and reinforced with vertical frame, area between wall panel ends and panel parts located near supports filled with concrete. Concrete diaphragms having thicknesses of not less than 30 mm are arranged in orifices leading to hollow floor panel end and are located at a distance exceeding wall panel thickness. Upper end part is provided with 45° slant having thickness of not less than 50 mm. Reinforcing net extending for the full joint width is laid in area between wall panel ends and floor panel parts located near supports above reinforced frame.

EFFECT: increased strength and reliability of joint, provision of rigid panel connection with each other and with hollow floor panels, improved manufacturability and reduced material consumption.

FIELD: building, particularly to connect wall and floor panels of frame-panel civil, industrial and other buildings and building structures.

SUBSTANCE: composite joint comprises hollow floor panels supported by inner load-bearing wall panels and gap defined between wall panel ends and support floor panel areas. The gap is filled with concrete and reinforced with vertical frame. Concrete membranes are arranged in spaces opened towards hollow floor panel ends and located at distance exceeding wall panel thickness. The concrete membranes have thicknesses of not less than 30 mm. Above mentioned hollow floor panel ends are provided with rectangular orifices extending from upper panel surface to panel hollows. Reinforcing net having rectangular extensions in plane view is placed in upper concrete section and extends for the full grouting area width. The reinforcing net is laid so that the extensions overlap monolithic areas of rectangular orifices formed over panel hollows.

EFFECT: increased strength and reliability of joint, provision of rigid panel connection, improved manufacturability.

4 dwg

FIELD: construction, particularly to erect buildings and building structures having cast-in-place floor panels and coverings.

SUBSTANCE: method involves imparting convex shape to floor panel during concreting thereof by means of special form usage, wherein the form has shell-like working surface with designed rise defined by two values, namely by designed rise constituent determined from concrete shrinking deformation compensation conditions and by rise constituent, which is intended to compensate force-caused displacements in floor panel.

EFFECT: increased reliability and strength of floor structures due to shrinking deformation and displacement compensation.

3 dwg

FIELD: building, particularly to erect, renew or reconstruct residential, public and office buildings and building structures.

SUBSTANCE: method involves preparing building base, constructing building foundation; erecting or reconstructing building frame or building frame parts, namely columns, girders and floor panels; assembling or disassembling service systems. At least part of building frame to be erected or reconstructed is composite and has grouted column joints. Frame includes girders having composite lower parts, designed to bear technological floor panel end support loads. Lower composite girder part is made as expanded pre-stressed flange, which defines one or two side cantilevered members extending along length thereof after upper monolithic girder part forming. Upper girder part is grouted to lower part thereof along with creation of wall and upper widened flange with one or two mating lower cantilevered members in cross-section. The cantilevered members are fastened to at least one floor panel supported by girder. The composite girder part has longitudinal and transversal reinforcing bar projections. Transversal reinforcing bar projections are arranged in at least span girder part and composed of clamps or rod system grouted in lower, composite, girder part during lower girder part forming. Transversal reinforcing bar projection tops are joined to each other by means of at least one reinforcing lattice so that transversal reinforcing bar projections extend above upper parts of floor panels supported by girder at least in connection area between girder and column extending for length of at least 1/3 of girder span.

EFFECT: improved building frame parts cooperation, increased reliability, strength and spatial rigidity of building frame due to building frame forming with the use of composite girder and due to girder, column and floor panel union in single three-dimensional structure during building erection, decreased labor inputs and costs, reduced building erection time and possibility to perform works in winter at negative ambient air temperatures.

17 cl, 16 dwg

FIELD: building, particularly to erect, renew or reconstruct residential, public and office buildings and building structures.

SUBSTANCE: in accordance with the first embodiment composite floor panel comprises composite girders connected to columns so that monolithic connection is created. At least one girder has lower part preferably formed as widened composite flange, which defines one or two side cantilevered members extending along length thereof after upper monolithic girder part forming. The cantilevered members are adapted to support ends and/or side faces of floor panel. At least one girder has upper monolithic part including wall and upper widened flange in cross-section. The flange is provided with one or two mating cantilevered members, which are grouted to at least one floor panel supported by the girder. Composite part mounted in floor panel is pre-stressed and preferably made as lower girder flange provided with longitudinal and transversal reinforcing bar projections. Transversal reinforcing bar projections are arranged in at least span girder part and composed of clamps or rod system grouted in lower, composite, girder part during lower girder part forming. Transversal reinforcing bar projection tops are joined to each other by means of at least one reinforcing lattice so that transversal reinforcing bar projections extend above upper parts of floor panels supported by girder at least in connection area between girder and column extending for length of at least 1/3 of girder span.

EFFECT: improved building frame parts cooperation, increased reliability, strength and spatial rigidity of building frame due to building frame forming with the use of composite girder and due to girder, column and floor panel union in single three-dimensional structure during building erection, decreased labor inputs and costs, reduced building erection time and possibility to perform works in winter at negative ambient air temperatures.

11 cl, 15 dwg

Up!