CN215253840U - Mounting structure of truss plate in modularization steel construction - Google Patents
Mounting structure of truss plate in modularization steel construction Download PDFInfo
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- CN215253840U CN215253840U CN202122394452.0U CN202122394452U CN215253840U CN 215253840 U CN215253840 U CN 215253840U CN 202122394452 U CN202122394452 U CN 202122394452U CN 215253840 U CN215253840 U CN 215253840U
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Abstract
The utility model discloses a mounting structure of truss plate among modularization steel construction contains the truss plate, connects in the steel column and the girder steel of truss plate bottom, connects angle steel support piece between truss plate and steel column, connects last chord joint bar and the last chord joint bar of connecting between truss plate and girder steel and connects in the cantilever brace that the truss plate was encorbelmented the end bottom. The utility model not only has the function of reinforcing and installing when the truss plates are connected with the steel columns, but also ensures the smoothness of the installed components through the combined arrangement of the angle steel supporting piece and the column edge reinforcing ribs; the upper chord connecting rib, the lower chord connecting rib and the additional rib are arranged, so that the reinforcement and the connection of the joint are ensured, and the arrangement of the additional rib is favorable for carrying out targeted construction according to the field condition; through the setting of bracing and cantilever brace, do not set up the bracing when the cantilever brace stretches out for a short time, exceed 250mm as the cantilever brace, further consolidate the support through the bracing, guaranteed truss plate's supporting atress.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to truss plate's mounting structure in modularization steel construction.
Background
Along with the development of national economy, the assembly type steel structure building is taken as the important system of assembly type building, and steel bar truss floor bearing plate is used extensively in the assembly type building, but along with the change of steel structure building's application form, the building of large-span is more and more, and this has just provided higher requirement to the installation construction of steel bar truss floor bearing plate, and it all needs key design thereby ensured the construction quality of large-span steel bar truss in the steel structure building at installation process and connection design etc. it guarantees construction site convenient, fast, high efficiency and safety.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mounting structure of truss plate in modularization steel construction for in the truss plate in solving the modularization steel construction with girder steel, steel column and encorbelment when being connected and consolidate technical problem such as installation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an installation structure of a truss plate in a modularized steel structure comprises the truss plate, a steel column and a steel beam which are connected to the bottom of the truss plate, an angle steel support piece connected between the truss plate and the steel column, an upper chord connecting rib and a lower chord connecting rib which are connected between the truss plate and the steel beam, and a cantilever brace connected to the bottom of an overhanging end of the truss plate;
cantilever brace one end and girder steel fixed connection, the other end setting of encorbelmenting or be connected with the bracing between the other end and the girder steel.
Furthermore, the truss plates are arched in two directions, and the joints of the plates and the steel beams are temporarily fixed through welding; the span of the truss plates is more than 4m, and the arching height is 0.25 percent of the span.
Furthermore, the steel column is a square column or a rectangular column, the two sides of the corner of each square column are connected with angle steel supporting pieces, and the top surfaces of the angle steel supporting pieces are flush with the top surfaces of the steel beams.
Furthermore, column-side reinforcing ribs are further arranged at the joints of the truss plates and the steel columns, the column-side reinforcing ribs are arranged in a square shape, and the length and the width of the square shape are greater than those of the columns; the outer ends of the column side reinforcing ribs are provided with hooks.
Further, the girder steel is the I-shaped girder steel, and girder steel roof department is connected and the girder steel top still be provided with truss plate top connecting piece with truss plate, the top connecting piece is T-shaped, and T-shaped stretches into inside the truss plate.
Furthermore, the cantilever support is a U-shaped part, and the width of the U-shaped opening corresponds to that of the truss plate; cantilever brace length is less than and equals to 250mm, cantilever brace one end and girder steel fixed connection, the unsettled setting of the other end.
Furthermore, the cantilever support is a U-shaped part, the width of the U-shaped opening corresponds to that of the truss plate, and a downward baffle is arranged at the extending end; cantilever brace length is greater than 250mm, cantilever brace one end and girder steel fixed connection, and the overhanging end department baffle of the other end passes through the bracing with the girder steel and is connected, bracing, cantilever brace and girder steel are the triangle and support the connection.
Furthermore, the cantilever length of the truss plate vertical steel beam is less than or equal to 7 times of the height of the truss plate.
Furthermore, the inclined strut is an angle steel piece, the bottom end of the inclined strut is connected to the joint of the bottom web plate and the bottom of the steel beam, and the bottom end of the inclined strut is connected to the inner side of the cantilever strut baffle plate; the bottom end and the top end of the inclined strut are provided with pre-connection steel plates corresponding to the connection parts.
Furthermore, the upper chord connecting rib of the truss plate at the steel beam anchors the minimum anchoring length of the tensioned steel bars which is not less than 3.2 times, and the lower chord connecting rib anchors the minimum anchoring length of the tensioned steel bars which is not less than 1.2 times;
the upper chord connecting rib and the lower chord connecting rib anchor are respectively connected with the main steel bar at the joint and are both suitable for being provided with additional ribs on site; the additional ribs are arranged at intervals at the top and the bottom of the truss plate in the longitudinal direction.
The beneficial effects of the utility model are embodied in:
1) the utility model not only has the function of reinforcing and installing when the truss plates are connected with the steel columns, but also ensures the smoothness of the installed components by the top of the angle steel support piece and the top of the steel beam being flush;
2) the utility model ensures the reinforcement and connection at the connection part when the truss plate is connected with the steel beam by the arrangement of the upper chord connecting rib, the lower chord connecting rib and the additional rib, and the arrangement of the additional rib is favorable for adapting to the field condition to carry out targeted construction;
3) the utility model, through the arrangement of the inclined strut and the cantilever strut, the inclined strut is not arranged when the cantilever strut is extended to a short length, and when the cantilever strut exceeds 250mm, the further inclined strut is used for reinforcing and supporting, thereby ensuring the bearing stress of the truss plate;
when the utility model is used for construction and installation, the truss plates are easy to install and can be further reinforced to be respectively connected with the column body and the beam body, and the cantilever is pertinently designed for a long time, which is more beneficial to distinguishing the convenient construction of design; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
FIG. 1 is a first schematic view of a steel bar truss floor deck connected to a steel beam;
FIG. 2 is a second schematic view of the connection between the steel bar truss floor support plate and the steel beam;
FIG. 3 is a schematic view of the connection between a steel bar truss floor deck and a steel column;
reference numerals: the steel beam comprises 1-truss plates, 2-steel beams, 3-upper chord connecting ribs, 4-lower chord connecting ribs, 5-additional ribs, 6-inclined struts, 7-cantilever struts, 8-steel columns, 9-column side reinforcing ribs and 10-angle steel supporting pieces.
Detailed Description
Taking a certain project as an example, the total building area of the project is 142656 square meters. The ground is divided into 9 residential buildings and 4 matched skirt houses. The foundation is in the form of a raft foundation, the underground is in a concrete frame structure, the overground structure is in a steel structure assembled house, the underground is three floors, and the ground is 13-16 floors. The overground steel structure mainly comprises a frame system consisting of small-section steel pipe columns and I-shaped steel beams, the section size of the steel column steel beams is small, the total consumption of the steel structures is about 9600t, the floor slab adopts a steel bar truss floor bearing plate, the thickness of the floor slab is mainly 130mm/220mm, and the maximum span is 6600 multiplied by 13300mm of a beamless unidirectional truss floor bearing plate (220 mm in thickness).
According to the construction drawing, to the direction of laying of steel bar truss building carrier plate, the node treatment carries out the design of deepening, and the machining dimension of strict control truss, overlap joint length through deepening the design, solves truss plate 1 in advance and supports position and demand on the steel member, realizes processing simultaneously with the steel member, reduces the damage of field processing to the steel member. Sampling and retesting the raw material of the steel bar truss floor bearing plate, and processing, manufacturing and entering the field after obtaining a qualified report. And then, the construction acceptance of the steel structure operation surface is completed, and the steel structure operation surface is handed over and inspected with the building bearing plate construction team.
Referring to fig. 1 to 3, the installation structure of the truss plate 1 in the modular steel structure is shown, wherein the truss plate 1 is a steel bar truss floor support plate, a steel column 8 and a steel beam 2 connected to the bottom of the steel bar truss plate 1, an angle steel support member 10 connected between the truss plate 1 and the steel column 8, an upper chord connecting rib 3 and a lower chord connecting rib 4 connected between the truss plate 1 and the steel beam 2, and a cantilever brace 7 connected to the bottom of the overhanging end of the truss plate 1; cantilever brace 7 one end and girder steel 2 fixed connection, the other end setting of encorbelmenting or be connected with bracing 6 between the other end and the girder steel 2.
In the embodiment, the truss plates 1 are arched in two directions, and the joints of the plates and the steel beams 2 are temporarily fixed by welding; the span of the truss plate 1 is more than 4m, and the arching height is 0.25 percent of the span.
In this embodiment, the steel column 8 is a square steel column 8, the two sides of the corner of each of the four corners of the square column are all welded with an angle iron support member 10, and the top surface of the angle iron support member 10 is flush with the top surface of the steel beam 2. Column edge reinforcing ribs 9 are also connected to the joints of the truss plates 1 and the steel columns 8 in advance, the column edge reinforcing ribs 9 are arranged in a square shape, and the length and the width of the square shape are greater than those of the columns; the outer ends of the column side reinforcing ribs 9 are provided with hooks.
As shown in fig. 1 and 2, the steel beam 2 is an i-shaped steel beam 2, the top plate of the steel beam 2 is connected with the truss plate 1, and a top connecting member connected with the truss plate 1 is further arranged at the top of the steel beam 2, the top connecting member is a T-shaped member, and the T-shaped member extends into the truss plate 1. The truss plates 1 are vertical to the steel beam 2, and the overhanging length is less than or equal to 7 times of the height of the truss plates 1.
In this embodiment, the cantilever support 7 is a U-shaped member, and the width of the U-shaped opening corresponds to the width of the truss plate 1; cantilever brace 7 length is less than and equals to 250mm, 7 one end of cantilever brace and girder steel 2 fixed connection, the unsettled setting of the other end.
Or the cantilever support 7 is a U-shaped part, the width of the U-shaped opening corresponds to that of the truss plate 1, and a downward baffle is arranged at the extending end; cantilever brace 7 length is greater than 250mm, 7 one end of cantilever brace and girder steel 2 fixed connection, and the overhanging end department baffle of the other end passes through bracing 6 with girder steel 2 to be connected, bracing 6, cantilever brace 7 and girder steel 2 are the triangle and support the connection.
In the embodiment, the inclined strut 6 is an angle steel piece, the bottom end of the inclined strut 6 is connected to the joint of the bottom web plate and the bottom of the steel beam 2, and the bottom end of the inclined strut 6 is connected to the inner side of the cantilever strut 7 baffle; the bottom end and the top end of the inclined strut 6 are provided with pre-connection steel plates corresponding to the connection parts.
In the embodiment, the upper chord connecting rib 3 of the truss plate 1 at the steel beam 2 anchors the minimum anchoring length of the tensioned steel bar which is not less than 3.2 times, and the lower chord connecting rib 4 anchors the minimum anchoring length of the tensioned steel bar which is not less than 1.2 times; the upper chord connecting rib 3 and the lower chord connecting rib 4 are respectively connected with the main reinforcing steel bar at the connecting part, and are both suitable for being provided with an additional rib 5 on site; the additional ribs 5 are arranged at intervals at the top and the bottom of the truss plate 1 in the length direction.
In addition, the truss plates 1 are arranged according to the arrangement direction of a construction drawing during installation, are laid from one side to the other side, and adopt non-standard plates as the last plate; to the Hangjin truss plate 1 of large-span adopt two-way arch camber, need adopt the electric welding to carry out interim fixed to plate and girder steel 2 handing-over department when laying. The lower part still is provided with interim support piece in the installation, and interim support is the scaffold frame, and the support body is moved about freely and quickly the interval and is 900 x 900mm, and the step is 1500mm, and the support body adopts the bowl to detain formula scaffold frame, adopts 100 x 100mm flitch in the adjustable U of truss plate 1 downside holds in the palm, and the flitch is hugged closely with the bottom of the board. When the span of the floor slab is more than 4m, the arch camber is 0.25%. The design requires that the floor arching is bidirectional arching, so each supporting height is inconsistent, and the height needs to be adjusted through an adjustable U support, wherein the maximum arching amount of the maximum plate is 33.3 mm.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The mounting structure of the truss plates in the modularized steel structure is characterized by comprising truss plates (1), steel columns (8) and steel beams (2) connected to the bottoms of the truss plates (1), angle steel supporting pieces (10) connected between the truss plates (1) and the steel columns (8), upper chord connecting ribs (3) and lower chord connecting ribs (4) connected between the truss plates (1) and the steel beams (2) and cantilever supports (7) connected to the bottoms of cantilever ends of the truss plates (1);
cantilever brace (7) one end and girder steel (2) fixed connection, the other end setting of encorbelmenting or be connected with bracing (6) between the other end and girder steel (2).
2. The truss plate installation structure in a modular steel structure as claimed in claim 1, wherein the truss plate (1) is arched in two directions, and the joint of the plate and the steel beam (2) is temporarily fixed by welding; the span of the truss plates (1) is more than 4m, and the arching height is 0.25 percent of the span.
3. A truss plate mounting structure in a modular steel structure as claimed in claim 2, wherein the steel column (8) is a square column or a rectangular column, the square column is connected with angle steel supporting members (10) at two sides of the corner of the four corners, and the top surface of the angle steel supporting member (10) is flush with the top surface of the steel beam (2).
4. The truss plate mounting structure in the modular steel structure as claimed in claim 3, wherein the truss plate (1) and the steel column (8) are connected by a column edge reinforcing rib (9), the column edge reinforcing rib (9) is arranged in a square shape, and the length and width of the square shape are larger than those of the column body; the outer ends of the column side reinforcing ribs (9) are provided with hooks.
5. A truss plate mounting structure in a modular steel structure as claimed in claim 2, wherein the steel beam (2) is an i-beam (2), the top plate of the steel beam (2) is connected with the truss plate (1) and the top of the steel beam (2) is further provided with a top connecting member with the truss plate (1), the top connecting member is a T-shaped member, and the T-shaped member extends into the truss plate (1).
6. Truss plate mounting arrangement in a modular steel structure, according to claim 5, characterized in that said cantilever brace (7) is a U-shaped piece with a U-shaped opening width corresponding to the width of the truss plate (1); cantilever brace (7) length is less than or equal to 250mm, cantilever brace (7) one end and girder steel (2) fixed connection, the unsettled setting of the other end.
7. A truss plate mounting structure in modular steel structure as claimed in claim 5, wherein the cantilever brace (7) is a U-shaped member with a U-shaped opening corresponding to the width of the truss plate (1) and a downward baffle at the outward end; cantilever brace (7) length is greater than 250mm, cantilever brace (7) one end and girder steel (2) fixed connection, and the outer limit department baffle of the other end is connected through bracing (6) with girder steel (2), bracing (6), cantilever brace (7) and girder steel (2) are the triangle and support the connection.
8. A truss plate mounting structure in a modular steel structure as claimed in claim 6 or 7, wherein the truss plate (1) is perpendicular to the steel beam (2), and the cantilever length is less than or equal to 7 times the truss plate (1) height.
9. The truss plate mounting structure in the modularization steel construction as claimed in claim 8, wherein, the bracing (6) is the angle steel component, the bottom end of the bracing (6) is connected with the bottom web and the bottom junction of the steel beam (2), the bottom end of the bracing (6) is connected with the inner side of the baffle plate of the cantilever brace (7); the bottom end and the top end of the inclined strut (6) are provided with pre-connecting steel plates corresponding to the connecting parts.
10. The truss plate installation structure in the modular steel structure as claimed in claim 5, wherein the upper chord ties (3) of the truss plate (1) at the steel girder (2) are anchored not less than 3.2 times the minimum anchoring length of the tension reinforcement, and the lower chord ties (4) are anchored not less than 1.2 times the minimum anchoring length of the tension reinforcement;
the upper chord connecting rib (3) and the lower chord connecting rib (4) are respectively connected with the main steel bar at the joint, and are both suitable for being provided with additional ribs (5) on site; the additional ribs (5) are arranged at intervals at the top and the bottom of the truss plate (1) in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122394452.0U CN215253840U (en) | 2021-09-30 | 2021-09-30 | Mounting structure of truss plate in modularization steel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122394452.0U CN215253840U (en) | 2021-09-30 | 2021-09-30 | Mounting structure of truss plate in modularization steel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215253840U true CN215253840U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122394452.0U Active CN215253840U (en) | 2021-09-30 | 2021-09-30 | Mounting structure of truss plate in modularization steel construction |
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| CN (1) | CN215253840U (en) |
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2021
- 2021-09-30 CN CN202122394452.0U patent/CN215253840U/en active Active
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