CN112900885A - Installation method and storage method of steel bar truss floor support plate and steel bar truss floor support plate - Google Patents
Installation method and storage method of steel bar truss floor support plate and steel bar truss floor support plate Download PDFInfo
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- CN112900885A CN112900885A CN202110280933.0A CN202110280933A CN112900885A CN 112900885 A CN112900885 A CN 112900885A CN 202110280933 A CN202110280933 A CN 202110280933A CN 112900885 A CN112900885 A CN 112900885A
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- bar truss
- truss floor
- plate
- floor bearing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 188
- 239000010959 steel Substances 0.000 title claims abstract description 188
- 238000009434 installation Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003860 storage Methods 0.000 title claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000035515 penetration Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000011179 visual inspection Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 210000003489 abdominal muscle Anatomy 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/28—Safety or protective measures preventing damage to building parts or finishing work during construction against unfavourable weather influence
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2103/00—Material constitution of slabs, sheets or the like
- E04B2103/02—Material constitution of slabs, sheets or the like of ceramics, concrete or other stone-like material
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides an installation method and a storage method of a steel bar truss floor bearing plate and the steel bar truss floor bearing plate, wherein the installation method of the steel bar truss floor bearing plate comprises the following steps: setting a datum line at an installation starting position; sequentially hoisting the steel bar truss floor bearing plates to the main body frame from the reference line and sequentially laying the steel bar truss floor bearing plates in the same direction; after each steel bar truss floor bearing plate is welded to the main body frame, the next steel bar truss floor bearing plate is installed, and the steel bar truss floor bearing plates and the main body frame are welded through studs; and after the laying is finished, carrying out installation quality detection. Before the steel bar truss building carrier plate is laid, a datum line during laying is laid according to the initial position of a drawing, and after the first steel bar truss building carrier plate is installed, a support vertical rib of the steel bar truss building carrier plate is fixed with a steel beam in a spot welding mode. The installation method of the steel bar truss floor support plate has the advantages of being accurate in installation and firm in installation of the steel bar truss floor support plate.
Description
Technical Field
The invention relates to the field of building construction, in particular to an installation method and a storage method of a steel bar truss floor support plate and the steel bar truss floor support plate.
Background
In the field of construction, after a main body frame is built, a floor support plate needs to be installed on the main body frame. And among the prior art, to the great error of the installation mounting dimension of building carrier plate, lead to the building carrier plate installation inaccurate to there is the insecure problem of installation still.
In view of the above, there is a need for a new method for installing and storing a steel bar truss floor deck, and a steel bar truss floor deck, which solve or at least alleviate the above technical drawbacks.
Disclosure of Invention
The invention mainly aims to provide an installation method and a storage method of a steel bar truss floor support plate and the steel bar truss floor support plate, and aims to solve the technical problems of inaccurate installation and infirm installation of the steel bar truss floor support plate in the prior art.
In order to achieve the above objects, according to one aspect of the present invention, there is provided a method for installing a steel-bar truss floor deck, comprising:
setting a datum line at an installation starting position;
sequentially hoisting the steel bar truss floor bearing plates to the main body frame from the reference line and sequentially laying the steel bar truss floor bearing plates in the same direction;
after each steel bar truss floor bearing plate is welded to the main body frame, the next steel bar truss floor bearing plate is installed, and the steel bar truss floor bearing plates and the main body frame are welded through studs;
and after the laying is finished, carrying out installation quality detection.
Optionally, hoist steel bar truss building carrier plate in proper order to main body frame on and will steel bar truss building carrier plate is laid towards same direction in proper order, hoist the step of steel bar truss building carrier plate includes:
confirming four hanging contacts of the steel bar truss floor bearing plate;
enabling soft lifting ropes to penetrate through the bottoms of steel bar truss floor bearing plates and hoisting the soft lifting ropes to a tower crane lifting hook, wherein the included angle between the two soft lifting ropes and the center line of the lifting hook is not more than 60 degrees;
when in lifting, the crane slowly accelerates to a preset speed and then ascends at a constant speed.
Optionally, hoist steel bar truss building carrier plate to main body frame in proper order and with during steel bar truss building carrier plate is laid towards same direction in proper order, still include following step:
will connect through the lock mode between the steel bar truss building carrier plate, and will through the drag hook clearance between the steel bar truss building carrier plate is taut, interval between the truss of steel bar truss building carrier plate is: 190 mm-210 mm.
Optionally, the stud welding comprises two welding modes of ordinary welding and penetration welding, and the ordinary welding comprises the following steps:
arc striking;
directly welding the stud on the surface of the workpiece by a welding machine;
the penetration welding comprises the following steps:
arc striking;
penetrating through a bottom plate of a steel bar truss floor bearing plate with a preset thickness;
and welding the studs on the bottom plate of the steel bar truss floor bearing plate through a welding machine.
Optionally, the preset thickness of the bottom plate penetrating through the steel bar truss floor support plate with the preset thickness is 0.8 mm-1.2 mm.
Optionally, after the step of welding the steel bar truss floor support plate and the main body frame through the studs, the laying is completed, and before the step of detecting the installation quality, the method further includes the steps of:
the stud welds were subjected to visual inspection and bending tests to confirm stud weld quality.
According to another aspect of the present invention, there is provided a method for storing a steel bar truss floor deck, comprising the steps of:
placing a skid on the ground to enable the steel bar truss floor bearing plate to be obliquely arranged according to a preset angle;
and stacking the skid and the steel bar truss floor bearing plate in sequence.
According to still another aspect of the present invention, there is provided a steel bar truss floor deck, comprising:
a base plate;
upper chord steel bars and lower chord steel bars;
the truss is arranged on the bottom plate and comprises bottom ribs and web ribs, the bottom ribs are connected with the bottom plate, the upper chord steel bars are arranged between the two web ribs which are arranged in an angle mode, and the lower chord steel bars are arranged at positions, close to the bottom ribs, of the web ribs.
Optionally, the steel bar truss floor support plate further comprises a support vertical rib and a support horizontal rib, the number of the lower chord steel bars is two, the support horizontal rib is connected with the lower chord steel bars, and the support vertical rib is connected with the upper chord steel bar and the bottom plate.
Optionally, a connecting rib is further arranged on the bottom plate, and the web rib is welded on the connecting rib.
In the technical scheme of the invention, a datum line is arranged at the installation starting position; sequentially hoisting the steel bar truss floor bearing plates to the main body frame from the reference line and sequentially laying the steel bar truss floor bearing plates in the same direction; after each steel bar truss floor bearing plate is welded to the main body frame, the next steel bar truss floor bearing plate is installed, and the steel bar truss floor bearing plates and the main body frame are welded through studs; and after the laying is finished, carrying out installation quality detection. In the scheme, before the steel bar truss floor bearing plate is laid, the datum line during laying should be laid according to the initial position of the drawing. Then aligning the datum line, installing a first steel bar truss floor bearing plate, and fixing support vertical ribs of the steel bar truss floor bearing plate and the steel beam in a spot welding manner; and then, other steel bar truss floor bearing plates are sequentially installed, the size of each steel bar truss floor bearing plate is corrected according to the icon in the laying process, and the steel bar truss floor bearing plates are adjusted immediately if deviation exists. In the actual laying process, a plurality of layers of steel bar truss floor bearing plates may need to be laid, laying of each layer of steel bar truss floor bearing plate is carried out from the initial position to the same direction, and errors in installation of the steel bar truss floor bearing plates can be reduced through the scheme. In addition, weld steel bar truss building carrier plate on main body frame through the stud welding, can further ensure that steel bar truss building carrier plate installation is firm. This embodiment has the accurate and firm advantage of installation of steel bar truss floor carrier plate installation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a first embodiment of a method for installing a steel bar truss floor deck according to the invention;
fig. 2 is a schematic flow chart illustrating a second embodiment of the method for installing a steel bar truss floor deck according to the present invention;
fig. 3 is a schematic flow chart illustrating an embodiment of a method for storing a steel bar truss floor deck according to the present invention;
FIG. 4 is a schematic view of an elevation structure of a steel bar truss floor deck according to an embodiment of the present invention;
fig. 5 is another schematic elevation view of a steel bar truss floor deck according to an embodiment of the invention.
The reference numbers illustrate:
1. a base plate; 2. upper chord steel bars; 3. a lower chord steel bar; 4. a truss; 41. a bottom rib; 42. abdominal muscle; 5. vertical ribs of the support; 6. and (5) supporting the horizontal ribs.
The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1 to 2, according to an aspect of the present invention, there is provided a method for installing a steel bar truss floor deck, including:
s10, setting a datum line at the installation starting position;
s20, hoisting the steel bar truss floor bearing plates to the main body frame in sequence from the reference line, and laying the steel bar truss floor bearing plates in sequence towards the same direction;
after each steel bar truss floor bearing plate is welded to the main body frame, the next steel bar truss floor bearing plate is installed, and the steel bar truss floor bearing plates and the main body frame are welded through studs;
and S30, after the paving is finished, carrying out installation quality detection.
In the above embodiment, before the steel bar truss floor support plate is laid, the reference line during laying should be laid according to the initial position of the drawing. Align the datum line, install first steel bar truss building carrier plate, erect muscle and girder steel spot welding with the support of steel bar truss building carrier plate and fix. And then, other steel bar truss floor bearing plates are sequentially installed, the size of each steel bar truss floor bearing plate is corrected according to the icon in the laying process, and the steel bar truss floor bearing plates are adjusted immediately if deviation exists. In the actual laying process, a plurality of layers of steel bar truss floor bearing plates may need to be laid, laying of each layer of steel bar truss floor bearing plate is carried out from the initial position to the same direction, and errors in installation of the steel bar truss floor bearing plates can be reduced through the scheme. In addition, weld steel bar truss building carrier plate on main body frame through the stud welding, can further ensure that steel bar truss building carrier plate installation is firm. This embodiment has the accurate and firm advantage of installation of steel bar truss floor carrier plate installation.
Further, hoist steel bar truss building carrier plate in proper order to main body frame on and lay steel bar truss building carrier plate in proper order towards same direction, the step of hoist and mount steel bar truss building carrier plate includes:
confirming four hanging contacts of the steel bar truss floor bearing plate;
enabling soft lifting ropes to penetrate through the bottoms of the steel bar truss floor bearing plates and hoisting the soft lifting ropes to a tower crane lifting hook, wherein the included angle between the soft lifting ropes is not more than 60 degrees;
when in lifting, the crane slowly accelerates to a preset speed and then ascends at a constant speed.
Four-point hoisting is set, two-point hoisting is prohibited, and unstable hoisting is prevented; before hoisting, whether the hanger is intact or not should be checked, and if the hanger cannot be modified, the hanger needs to be replaced. During hoisting, the hoisting can be carried out by a single block or in bundles; when the single block is hoisted, the soft hoisting rope passes through the bottom of the floor bearing plate and the hoisting contact point and then is hoisted on a hoisting hook of a tower crane; when the bundle is hoisted, two ends of two sections of soft hoisting ropes with equal length respectively penetrate into a packing frame and a hoisting connection point at the bottom of the bundle, and the included angle between the soft hoisting ropes cannot be larger than 60 degrees. When in lifting, the crane should be slightly stopped and slowly accelerated, and should be uniformly lifted in the lifting process, and the crane should be strictly prohibited to swing in the lifting process.
Further, hoist steel bar truss building carrier plate in proper order to main body frame on and lay steel bar truss building carrier plate towards same direction in proper order, still include following step: connect through the lock mode between the steel bar truss building carrier plate to it is taut with the clearance between the steel bar truss building carrier plate through the drag hook, the interval between the truss of steel bar truss building carrier plate is: 190 mm-210 mm. Specifically, the distance between two adjacent trusses is 200 mm. Steel bar truss building carrier plate is connected and is adopted the lock mode, then is connected through the drag hook again between steel bar truss building carrier plate and the steel bar truss building carrier plate closely, does not leak when guaranteeing to pour concrete and starch.
Further, the stud welding comprises two welding modes of common welding and penetration welding, and the common welding comprises the following steps: arc striking, and then directly welding the stud on the surface of the workpiece by a welding machine; during ordinary welding, the stud is directly welded on the surface of a workpiece, the welding mode is quick and convenient, the required welding time is short, and the required welding current is also small.
The penetration welding comprises the following steps:
arc striking;
penetrating through a bottom plate of a steel bar truss floor bearing plate with a preset thickness;
and the studs are welded on the bottom plate of the steel bar truss floor bearing plate through a welding machine.
A blind hole is made in the bottom plate of the existing steel bar truss floor support plate during penetration welding, and then the stud is welded on the bottom plate, so that the welding mode is firmer in welding. But compared with the common welding, the welding time is longer, the required welding current is larger, and the requirement on the close contact degree of the bottom plate and the steel member is higher. Further, the preset thickness of the bottom plate penetrating through the steel bar truss floor bearing plate with the preset thickness is 0.8-1.2 mm.
Referring to fig. 2, further, after the step of welding the steel bar truss floor support plate with the main body frame through the studs, the step of laying is completed, and before the step of detecting the installation quality, the method further includes step S21:
the stud welds were subjected to visual inspection and bending tests to confirm the stud weld quality.
After the welding is completed, the stud welding quality needs to be detected. Specifically, the visual inspection includes: after welding, knocking each stud by a pointed-end hammer, and removing the porcelain ring for appearance inspection. The phenomena of non-fusion, undercut and magnetic blow should not occur. The bending test comprises: and (3) for the stud with an imperfect welding layer, performing a bending 15-degree test on the stud with the height exceeding a specified value of 1.6mm after welding by using a hammer to generate a blank drum sound, exposing defects, and judging that the stud is qualified if the bent stud does not crack.
It should be noted that when a plane shape change (steel column corner, core barrel corner, beam surface lining connecting plate, etc.) is encountered, two ends of the steel bar truss floor bearing plate can be cut, and before cutting, paying-off and checking and rechecking are carried out according to the size to be cut. The cutting mode can adopt machinery or oxygen cutting, selects the position of truss joint as far as possible during the cutting, nevertheless must satisfy the lapped requirement of design, and the steel bar truss floor carrier plate tip after the cutting still need weld horizontal support reinforcing bar and vertical support reinforcing bar according to original requirement, if cut off at the node middle part, the web member reinforcing bar also need weld on vertical reinforcing bar, and the back of taking one's place can be installed. When the installation was located the building carrier plate of most side, should the alignment of acting as go-between, adjust and utilize reinforcing bar one end and peg spot welding after suitable, one end and most side building carrier plate spot welding are fixed with the edge part, and the upper limb point welding interval 300mm of most side building carrier plate bottom and girder steel.
If the design needs to open a hole on the floor slab, the construction should be reserved. Can establish entrance to a cave limit strengthening rib according to the designing requirement, establish the building carrier plate all around, after building carrier plate concrete reaches design intensity, cut off steel bar and the bottom plate of steel bar truss building carrier plate again. When cutting, the concrete is cut from bottom to top, so that the edge of the bottom plate is prevented from being separated from the poured concrete, and the cutting can be performed by mechanical cutting or oxygen cutting. After the steel bar truss floor bearing plate is installed, any steel bars on the steel bar truss are forbidden to be cut off, if the steel bar truss is required to be cut off, the steel bars of the same model are adopted to re-bind and connect the steel bar truss, and the lap joint length of the design requirement is met.
Referring to fig. 3, according to another aspect of the present invention, there is provided a storage method of a steel bar truss floor deck, including the steps of:
s100, placing a skid on the ground to enable the steel bar truss floor bearing plate to be obliquely arranged according to a preset angle;
s200, sequentially stacking the skid and the steel bar truss floor bearing plate.
When steel bar truss building carrier plate is deposited in the open air, should not add the lumber skid with ground direct contact, need at the bottom to make steel bar truss building carrier plate slope slightly place (the angle should not exceed 10 degrees), flow from the both ends of building carrier plate with the assurance ponding, avoid the building carrier plate to produce the water spot rust. This embodiment can ensure that steel bar truss building carrier plate is difficult for wearing and tearing, also can ensure that steel bar truss building carrier plate is not rusted seriously because of ponding.
Referring to fig. 4 to 5, according to still another aspect of the present invention, there is provided a steel-bar truss floor deck including:
a base plate 1;
upper chord steel bars 2 and lower chord steel bars 3;
set up truss 4 on bottom plate 1, truss 4 includes end muscle 41 and web member 42, and end muscle 41 is connected with bottom plate 1, and last chord reinforcement 2 sets up between two web members 42 that the angle set up, and lower chord reinforcement 3 sets up the position that is close to end muscle 41 at web member 42.
In the above embodiment, the truss 4 includes two sub-frames respectively disposed at two sides of the upper chord steel bar 2, the two sub-frames are disposed at an angle, and the upper chord steel bar 2 is disposed in a vertex angle formed by the two sub-frames. The upper chord steel bar 2 and the lower chord steel bar 3 are welded with the truss 4 and used for strengthening and supporting the truss 4, so that the steel bar truss floor support plate is prevented from being deformed easily in the installation process, and the installation precision is improved.
Furthermore, the steel bar truss floor support plate further comprises a support vertical rib 5 and a support horizontal rib 6, the number of the lower chord steel bars 3 is two, the support horizontal rib 6 is connected with the two lower chord steel bars 3, and the support vertical rib 5 is connected with the upper chord steel bar 2 and the bottom plate 1. The vertical support ribs 5 are used for supporting the upper chord steel bars 2, the horizontal support ribs 6 are used for connecting and fixing the two lower chord steel bars 3, supporting and reinforcing effects are further achieved, the steel bar truss floor bearing plate is ensured not to be deformed in the installation process, and the installation accuracy is further improved.
Furthermore, the bottom plate 1 is also provided with a connecting rib, and the web rib 42 is welded on the connecting rib. The web ribs 42 are welded on the bottom plate 1 through the connecting ribs, and the welding is more convenient and easier.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the claims and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The installation method of the steel bar truss floor support plate is characterized by comprising the following steps of:
setting a datum line at an installation starting position;
sequentially hoisting the steel bar truss floor bearing plates to the main body frame from the reference line and sequentially laying the steel bar truss floor bearing plates in the same direction;
after each steel bar truss floor bearing plate is welded to the main body frame, the next steel bar truss floor bearing plate is installed, and the steel bar truss floor bearing plates and the main body frame are welded through studs;
and after the laying is finished, carrying out installation quality detection.
2. The method for installing the steel bar truss floor bearing plate according to claim 1, wherein the steps of hoisting the steel bar truss floor bearing plate to the main body frame and sequentially laying the steel bar truss floor bearing plate in the same direction comprise:
confirming four hanging contacts of the steel bar truss floor bearing plate;
enabling soft lifting ropes to penetrate through the bottoms of steel bar truss floor bearing plates and hoisting the soft lifting ropes to a tower crane lifting hook, wherein the included angle between the soft lifting ropes is not more than 60 degrees;
when in lifting, the crane slowly accelerates to a preset speed and then ascends at a constant speed.
3. The method for installing the steel bar truss floor deck according to claim 1, wherein the steps of sequentially hoisting the steel bar truss floor deck onto the main frame and sequentially laying the steel bar truss floor deck in the same direction further comprise the following steps:
will connect through the lock mode between the steel bar truss building carrier plate, and will through the drag hook clearance between the steel bar truss building carrier plate is taut, interval between the truss of steel bar truss building carrier plate is: 190 mm-210 mm.
4. The method for installing a steel bar truss floor deck according to claim 1, wherein the stud welding includes two welding modes of ordinary welding and penetration welding, and the ordinary welding includes the following steps:
arc striking;
directly welding the stud on the surface of the workpiece by a welding machine;
the penetration welding comprises the following steps:
arc striking;
penetrating through a bottom plate of a steel bar truss floor bearing plate with a preset thickness;
and welding the studs on the bottom plate of the steel bar truss floor bearing plate through a welding machine.
5. The method for installing the steel bar truss floor deck according to claim 4, wherein the predetermined thickness is 0.8mm to 1.2mm in the bottom plate penetrating through the steel bar truss floor deck with the predetermined thickness.
6. The method for installing a steel bar truss floor deck according to claim 1, wherein after the step of welding the steel bar truss floor deck with the main frame through studs, the laying is completed, and before the step of detecting the installation quality, the method further comprises the following steps:
the stud welds were subjected to visual inspection and bending tests to confirm stud weld quality.
7. A storage method of a steel bar truss floor support plate is characterized by comprising the following steps:
placing a skid on the ground to enable the steel bar truss floor bearing plate to be obliquely arranged according to a preset angle;
and stacking the skid and the steel bar truss floor bearing plate in sequence.
8. A steel bar truss floor deck, comprising:
a base plate;
upper chord steel bars and lower chord steel bars;
the truss is arranged on the bottom plate and comprises bottom ribs and web ribs, the bottom ribs are connected with the bottom plate, the upper chord steel bars are arranged between the two web ribs which are arranged in an angle mode, and the lower chord steel bars are arranged at positions, close to the bottom ribs, of the web ribs.
9. The steel bar truss floor deck according to claim 8, further comprising two support vertical bars and two support horizontal bars, wherein the two support horizontal bars connect the two lower chord steel bars, and the support vertical bars connect the upper chord steel bars and the bottom plate.
10. The steel bar truss floor deck according to claim 8, wherein the bottom plate is further provided with a connecting rib, and the web rib is welded to the connecting rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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