6results about How to "Reduce wet work" patented technology

This invention provides a prefabricated concrete frame integrated modular housing structure and its construction method, relating to the field of building construction technology. It includes at least one floor housing structure; the at least one floor housing structure comprises multiple modular units that are spliced ​​together and prefabricated as a single unit. Each modular unit includes at least one of the following: a prefabricated edge beam, a floor slab assembly, and a structural column. In at least one pair of modular units: the adjacent corners of the two modular units together form a splicing area, and the splicing area has only one structural column. The structural column is prefabricated within any one modular unit and connects to the beam end of a prefabricated edge beam or a floor slab assembly within the other modular unit. This modular housing structure significantly reduces on-site wet work and manual binding work, while fundamentally solving the problem that narrow gaps between columns make it difficult to achieve connections, whether hinged or rigid, thus improving the seismic toughness and structural safety of modular buildings.

The utility model provides a kind of exempt from formwork piece prefabricated comprehensive pipe gallery structure, including along longitudinal piece prefabricated side wall, middle wall, roof and bottom plate;The side wall top is equipped with cantilevered plate integrally formed with one, and the cantilevered plate is used to rest roof and as the template of wet connecting node;The side wall and roof, the side wall and bottom plate are connected by steel bar lap joint and post-poured concrete to form wet connecting structure;The middle wall and roof are connected by high-strength bolt to form dry connecting structure;The middle wall and bottom plate are connected by mortise and tenon structure to form dry connecting structure;The longitudinal end of the side wall, roof and bottom plate is equipped with the connecting box of built-in steel wire rope ring, and the corresponding steel wire rope ring of adjacent pipe gallery section is connected by pin shaft steel bar and forms longitudinal connecting structure by pouring concrete.The utility model has good economy, and multiple segments can also be parallel advanced during construction, and efficiency is stable.

This invention discloses a composite steel frame connection structure and method for a flat beam-wall panel-column structure. In the column-column and beam-column composite connection system, the steel columns and flat beams are made of hot-rolled steel and can be prefabricated in the factory. After being transported to the site, they are connected using composite connectors and high-strength bolts. The beam-slab composite connection system tightly connects the prefabricated floor slab and flat beams through embedded parts in the steel beams, pre-reinforced steel bars in the floor slabs, threaded shear fasteners, and a portion of cast-in-place concrete, enabling both to share loads and deform collaboratively. The modular walls of the composite wall composite connection system consist of expanded clay concrete filling material and a wall skeleton, connected to the flat beams and multifunctional embedded parts on the steel columns. Adjacent composite walls are connected by mortise and tenon joints on cold-formed thin-walled steel units at both ends. This invention meets the overall load-bearing, energy-saving, and seismic resistance requirements of modern prefabricated building systems, significantly improving construction efficiency and ensuring construction quality.

The invention discloses a construction method suitable for an ultrathin steel skeleton partition wall, which comprises the following steps: manufacturing cold bending moment pipes, and manufacturing partition wall skeleton units by adopting the cold bending moment pipes; the partition wall framework units are sequentially arranged and spliced to form a partition wall framework; a plurality of vertical steel bars are fixedly arranged in the partition wall framework to form a stress framework; the formworks are detachably installed on the two sides of the stress framework, and a closed pouring cavity is formed between the formworks and the stress framework; fine aggregate concrete is poured into the pouring cavity to form a partition wall main body; the partition wall framework is formed by splicing the cold bending moment pipes, and the vertical reinforcing steel bar structure is additionally arranged in the partition wall framework, so that the problems that the wall body is large in thickness, the framework is insufficient in rigidity and concrete is prone to hollowing and cracking can be solved, ultrathin forming of the partition wall is achieved, and the partition wall is combined with steel and concrete to bear force; the comprehensive performance such as strength, sound insulation and fire prevention of the wall body can be improved, formwork erecting and pouring procedures are simplified, and on the basis of guaranteeing the quality and use safety of the wall body, the construction efficiency is improved, and the comprehensive cost is reduced.

The utility model discloses a prefabricated floor slab connecting piece, belongs to the technical field of building connection, and aims to solve the technical problem that in the prior art, wet connection or dry connection is independently adopted between prefabricated floor slabs, so that construction is inconvenient or the connection strength is limited. The prefabricated floor slab connecting piece comprises a connecting bottom supporting plate and an anti-falling piece. The connecting ends of the two prefabricated floor slab bodies are placed on the two sides of the top of the connecting bottom supporting plate, the reserved steel bars of the connecting ends of the prefabricated floor slab bodies face the side of the middle of the connecting bottom supporting plate, and concrete is poured between the two prefabricated floor slab bodies for wet connection. According to the prefabricated floor slab connecting piece, wet-type connection and dry-type connection are combined, the two prefabricated floor slab main bodies preliminarily form a whole through concrete pouring in the wet-type connection, the connecting bottom supporting plates and the prefabricated floor slab main bodies are tightly connected and fixed through the anti-disengaging pieces in the dry-type connection, and the connecting strength and rigidity between the prefabricated floor slab main bodies are greatly improved; and the requirements of high-rise buildings or large-span buildings on structural performance can be met.

The utility model discloses a light steel joist fast-assembly wall system, which is used for fast installation and construction of light steel joist partition wall boards, and comprises a stand column and a cross beam, each stand column comprises a stand column male material, a stand column female material and a connecting keel, the stand column male materials and the stand column female materials are connected in a clamped mode to form the stand columns, the stand column female materials and the stand column male materials can be connected with the cross beams in an inserted mode, and the connecting keels are detachably arranged on the stand column female materials and located between the adjacent cross beams. Two ends of the cross beam are respectively inserted between the adjacent stand columns, and the side wall of the cross beam can be hung with a partition board. According to the light steel joist fast-assembly wall system, through the modularized stand column male materials and the stand column female materials, the light steel joist fast-assembly wall system is more convenient for a user to transport, positioning in the construction process is omitted, and the construction efficiency is improved. In addition, due to the structural arrangement that the cross beams are connected with the stand columns in an inserted mode, the connecting mode through corner connectors is further omitted when the system is installed and constructed, and the installation efficiency is improved.