Article catalogue:
- 1 、What problems should be paid attention to in the construction of bearing slab of reinforced truss building?
- 2 、How to support the bearing plate of 3D prefabricated steel truss floor
- 3 、Construction Technology of bearing Slab of reinforced Truss Building
- 4 、How to install the bearing plate of steel truss building?
What problems should be paid attention to in the construction of bearing slab of reinforced truss building?
Pay attention to the following issues:
1 the bearing plate of steel truss building should be lifted gently and should not be touched.
Collision to prevent the steel truss bearing plate from changing. The loading, unloading and hoisting of the steel truss bearing plate are all carried out by a special hanger made of angle steel or channel steel combined with soft hoisting, and the steel cable shall not be used to directly hoist the steel truss bearing plate, so as to prevent the edge of the steel truss bearing plate from being extruded and deformed by the steel cable in the hoisting process, affecting the construction. The soft sling must be matched, and a comprehensive inspection should be carried out in time after repeated use, and if it is damaged, it needs to be scrapped and replaced. If there is no special hanger, sleepers should be provided under the bearing plate of the steel truss.
2 if the steel truss bearing plate is stacked in the lifting position, it should be stacked according to the steel truss floor layout and packaging identification, and the hoisting process should be carried out at the same time.
Construction quality of steel truss bearing slab:
First, the staff should check whether the shape of the steel truss bearing plate is in line with the prescribed requirements.
Second, whether the steel truss bearing plates used in different fields are consistent with the pre-designed drawings.
Third, for this kind of raw materials in the laying of seven points and the length direction of the relevant break is in line with the requirements, in addition, we should also see whether the width direction lap length on the beam can meet the prescribed needs.
Fourth, the steel truss bearing plate end support vertical bars and formwork edges, etc., have been welded with the steel beam.
Fifth, in view of the columns in the whole project, we should also check whether the setting of the column edge support angle steel can meet the basic design requirements.
Sixth, as different joints or special parts need to reserve holes, the relevant staff should also check whether the location of the reserved holes is within the range of allowable deviation.
Seventh, whether the temporary support of the steel truss bearing slab is in accordance with the prescribed design requirements, so as to be set to the prescribed standard.
Eighth, the staff should also carefully check whether the relevant connections of the rebar truss plate side pull hooks are in line with the tight and stable requirements.
How to support the bearing plate of 3D prefabricated steel truss floor
The 3D prefabricated steel bar truss floor bearing plate is fixed at the bottom of the steel bar truss, and the building bearing plate is lapped and connected with the building bearing plate. Because the thickness of the bearing plate is thin (only 0.5mm), before the concrete construction is carried out after the installation of the bearing plate, the bearing plate exceeding a certain span needs to set up a reliable temporary support in the middle of the span. The existing supporting structure is steel pipe scaffolding, and the installation foundation of steel pipe scaffolding needs to be set on the lower foundation. However, after the completion of the concrete pouring of the lower floor, we need to wait for a certain amount of time in order to achieve the required strength of the steel pipe scaffolding. During the waiting period, the deflection of the bearing slab often sinks, resulting in cracks in the splicing position, and the slurry will leak in the later concrete construction, which will affect the appearance and quality of the bearing slab.
Construction Technology of bearing Slab of reinforced Truss Building
The construction technology of steel truss floor bearing plate is as follows: steel truss floor bearing plate is an unsupported pressed composite floor plate processed in the background of the factory, which is directly supported on steel beam or concrete beam.
It is not only the stressed steel bar of the concrete floor, but also the supporting scaffolding, but also the formwork of the concrete floor, which combines the functions of the load-bearing skeleton and the formwork into one, saving the time of setting up the scaffolding printing formwork. at the same time, the amount of steel bar binding on the site is reduced by 60% / 70%.
The application of reinforced steel frame floor bearing plate in the project is simple and convenient, at the same time, it can realize mechanized production and reduce the input of manpower and turnover tools.
Technological principle of bearing plate of steel bar truss
The steel truss bearing plate is an unsupported pressed composite bearing plate, which is processed in the form of stereotyped processing in the processing plant, and installed at the construction site after being transported to the construction site. During installation, the steel truss bearing plate is directly supported on the floor concrete beam or steel beam, and then the pipeline is laid and the plate reinforcement is tied up in accordance with the design requirements, and finally concrete is poured.
In the use stage, the self-weight of the formed concrete floor produces negative bending moment and positive bending moment, which is completely borne by the steel bar, and there is no tensile stress inside the concrete. the tensile stress of the concrete itself is significantly reduced and the crack width is reduced. at the same time, the existence of galvanized steel plate also avoids the exposure of cracks under the floor, improves the performance of the floor and improves the durability.
How to install the bearing plate of steel truss building?
How to install the steel truss bearing plate, the matters needing attention and its advantages in use can be found on the official website. The actual construction is still to find a professional to do rest assured.
This is the end of the video introduction on how to construct the steel truss bearing slab and the construction video of the reinforced truss bearing slab. I wonder if you have found the information you need? If you want to know more about this, remember to collect and follow this site.