Steel construction tower crane foundation on existing building
Technical Field
The utility model relates to a tower crane foundation with an upper steel structure of an existing building, and belongs to the technical field of building engineering.
Background
If the reinforced concrete tower crane foundation is arranged on the floor of the existing building, the floor of the existing building needs to be reinforced due to the large dead weight of the concrete, the cost is high, the reinforced concrete foundation cannot be reused, and the waste is serious.
Disclosure of utility model
The utility model aims to solve the problems and provide the tower crane foundation with the steel structure on the existing building.
The utility model realizes the above purpose through the following technical scheme:
a tower crane foundation with a steel structure for an existing building comprises a steel main beam, a steel secondary beam, a connecting beam, a round steel backing plate and a stiffening plate.
The steel structure tower crane foundation is arranged. The first connecting steel plate and the second connecting steel plate are oppositely pulled to be arranged on two sides of one frame column and are fixed with connecting steel bars in the frame column in a plug welding manner, the first connecting steel plate and the second connecting steel plate are flush with the outer surface of the frame column, and the connecting steel bars are transversely fixed on main steel bars of the frame column;
the two steel main beams which are arranged in parallel are box-shaped steel beams, and the two ends of the two steel main beams are fixedly connected with the first connecting steel plate by welding;
Two steel secondary beams which are arranged in parallel are box-shaped steel beams which are vertical to the steel main beams, and two ends of the steel secondary beams are welded and connected with two main beam webs;
The four steel connecting beams are arranged in parallel up and down in pairs and are perpendicular to the steel secondary beams, two ends of the four steel connecting beams are fixedly connected with two steel secondary beam webs by welding, and the integrity of a steel structure foundation is improved;
The four round steel backing plates are correspondingly welded and fixed on the upper flanges and the lower flanges of the two steel secondary beams and are used for connecting foundation sections of the tower crane through high-strength bolts;
The steel structure processing plant is used for prefabricating and processing the connecting steel plates, the steel main beams, the steel secondary beams, the tie beams, the round steel backing plates and the stiffening plates in advance;
By adopting the technical scheme, the utility model has the following effects that the problem of difficult installation of the tower crane foundation on the existing building can be effectively solved in the field of new construction of the existing building, especially in the engineering construction of difficult vertical transportation and large mechanical use amount. In addition, the tower crane foundation and the frame column on the original building form a whole, so that the construction safety is improved, the steel structure foundation is constructed quickly, the steel members can be recycled after the building is completed, the construction cost is saved, and the method is worthy of popularization.
Drawings
FIG. 1 is a top plan view of a tower crane foundation of an existing building steel structure in accordance with the present utility model
FIG. 2 is a front view of a tower crane foundation of an existing building steel structure in accordance with the present utility model
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
The tower crane foundation with the steel structure on the existing building comprises four frame columns (1), wherein a first connecting steel plate (101) and a second connecting steel plate (102) are arranged on the side of each frame column, connecting steel bars (103) are arranged in the frame columns and are fixed with the first connecting steel plate (101) and the second connecting steel plate (102) in a plug welding way, two ends of a steel main beam (2) are connected and fixed with the first connecting steel plate (101) by adopting welding, and a welding seam is a full penetration welding seam;
in the structure shown in the figure 1, vertical stiffening plates (7) are arranged in the steel main beam (2) at intervals along the length direction, and vertical stiffening plates (8) are arranged in the steel secondary beam (3) at intervals along the length direction, wherein the stiffening plates (7) are fixedly connected with an upper flange plate, a lower flange plate and a web plate of the steel main beam (2) by adopting welding, and welding seams are fillet welds;
The two ends of the upper and lower connecting beams (4) are fixedly connected with the web sides of the steel secondary beams (3) by adopting welding, and the welding seams are fillet welding;
The transverse stiffening plates (6) are vertically arranged at intervals at the connection positions of the steel main beams and the steel secondary beams, the stiffening plates are right-angled triangles, two right-angled sides are fixedly connected with the steel main beams and the steel secondary beam webs by welding, and the welding seams are fillet welds;
in addition, in the utility model, all the connecting steel plates, the steel main beams, the steel secondary beams, the tie beams and the round steel backing plates are prefabricated and processed in advance by a steel structure processing factory, so that the processing precision of steel components is improved, the installation efficiency of on-site steel components is improved, and the influence on the construction period is reduced.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.