30results about How to "Short construction period on site" patented technology

The invention discloses a connecting structure for a prefabricated reinforced concrete longitudinal beam and a prefabricated reinforced concrete transverse beam. The connecting structure comprises the prefabricated reinforced concrete longitudinal beam and the prefabricated reinforced concrete transverse beam. The prefabricated reinforced concrete longitudinal beam is provided with a transverse beam connecting end, the prefabricated reinforced concrete transverse beam is provided with the longitudinal beam connecting end, and the center line of the transverse beam connecting end of the prefabricated reinforced concrete longitudinal beam and the center line of the longitudinal beam connecting end of the prefabricated reinforced concrete transverse beam are coincided; the transverse beam connecting end of the prefabricated reinforced concrete longitudinal beam is connected with the longitudinal beam connecting end of the prefabricated reinforced concrete transverse beam in an inserted mode through reinforcing steel bar plugs and reinforcing steel bar insertion holes, the reinforcing steel bar insertion holes are formed by corrugated steel pipes, connecting agents are arranged between the corrugated steel pipes and the reinforcing steel bar plugs, and the joint position between the longitudinal beam connecting end of the prefabricated reinforced concrete transverse beam and the transverse beam connecting end of the prefabricated reinforced concrete longitudinal beam is provided with a joint connecting agent. According to the connecting structure, the prefabricated reinforced concrete longitudinal beam and the prefabricated reinforced concrete transverse beam can be prefabricated, splicing installation can be carried out on site, construction is conveniently achieved, and site construction pollution can be reduced.

The invention relates to a ferrocement biogas digester which is a box-shaped structure body formed by the splicing of a plurality of ferrocement panels; the biogas digester comprises an acidification feeding pool, a feeding room, a fermentation pool, a discharging pool and a water pressure room, which are connected and communicated in sequence; and the upper surface of the fermentation pool is provided with a manhole cover which is provided with an air outlet pipe. The invention has the advantages of good integrity, high local strength, strong compactness and impermeability, high safety and reliability, and effectively enhances the durability of the main structure in a corrosive medium; simultaneously, the invention also has short on-site construction period and less processes with high technical requirements, can be effectively controlled in the construction scope, and avoids the defects of easy omission when in large-scale construction.

The invention provides a structure for broadening a bridge by additionally arranging a steel cap beam on the top of a pier, belonging to the technical field of bridge engineering. According to the structure for broadening the bridge by additionally arranging the steel cap beam on the top of the pier, post-pouring concrete is poured at the two sides of the original concrete pier, and the specific concrete width of the post-pouring concrete is determined according to the stress of the upper part of the bridge; the steel cap beam is additionally arranged on the top of the pier poured with the post-pouring concrete; the steel cap beam has a box cross section and is formed by steel plates in a welding way; according to the stress of the upper part of the bridge, prestressed steel beams and prestressed anchor bars are arranged in the steel cap beam; the prestressed steel beams are vertical to the prestressed anchor bars in the steel cap beam; steel box beams are additionally arranged at the two sides of an original concrete box beam; the steel box beams are positioned on the steel cap beam. The structure for broadening the bridge by additionally arranging the steel cap beam on the top of the pier has the effects and advantages that the structure of the original bridge main body is not torn down, so that the economy of widening reformation is guaranteed; the design load of the structure of the newly added steel box beams is not limited, so that the operation reliability of the broadened bridge is high; in the construction process, the traffic on the bridge is not needed to be interrupted; furthermore, the structure for broadening the bridge by additionally arranging the steel cap beam on the top of the pier is short in site construction period and has little influence on ground transportation.

The invention relates to a light steel structural house with an outdoor corridor mudsill, which comprises a lower house structure and an upper house structure, and adopts the technical key points that a hollow metal section supporting layer is arranged between the lower house structure and the upper house structure, an outward extending part of a metal section in the supporting layer is the outdoor corridor mudsill, and auxiliaries for manufacturing an outdoor corridor are fixedly connected to the outdoor corridor mudsill in turn. When the outdoor corridor is installed, corridor upright postsare saved and the outdoor corridor forms an integral structure with the light steel house, so not only safety and stability are greatly improved, but also occupied space is saved, and installation ofa balcony and an outdoor air conditioner is convenient. For southern houses, an air passage of the hollow metal section supporting layer can adjust air circulation on the upper floor and the lower floor. The house simplifies beam and column nodes, and has the advantages of less construction process and convenient and quick installation. The house also has the advantages of simple and reasonable structure, safety and reliability, short site operation period, convenience and practicality, wide application range, and the like.

The invention discloses a glass guardrail system for high-rise buildings and a construction method. Square steel stand columns welded to a plurality of embedded structural parts distributed evenly and connected into a line in a building structure and a handrail steel plate welded to the top ends of the square steel stand columns form a steel frame which can meet the requirement for structural safety of the area with large wind pressure. The steel frame is flexible in dimension design, so that structural safety is ensured and construction cost is reduced. Aluminum alloy main members arranged on the outer side of the steel frame and vertical column buckle plates are of split locked lid combination structures, and aluminum alloy guardrail handrails and handrail buckle plates are of split locked lid combination structures, so that assembly and disassembly are facilitated. An upper cross beam, a lower cross beam and the aluminum alloy main members are connected through aluminum alloy connectors, so that field installation is convenient, and connection quality is ensured. Tampered and laminated glass is arranged on the upper cross beam and the lower cross beam through cross beam buckle strips, so that broken glass can be replaced easily. The glass guardrail system is used for high-rise steps or the peripheries of observation decks of the high-rise buildings. The glass guardrail system is reasonable in design, simple in installation, high in precision and quality, and short in construction period, the members are produced in a standard mode according to a drawing, and later-period maintenance and member replacement are easy.

The invention discloses a beam-column joint connection structure and a hoisting process of a prefabricated concrete building, and relates to the technical field of prefabricated concrete building structures. It includes a screw set at the lower end of the column and a connecting piece for connecting the upper end of the column. The upper end face of the column is provided with a thread groove for screwing and matching with the screw at the lower end of the upper column, and one end of the beam abuts on the upper end of the column. And one end of the connecting plate protruding from the end of the beam is arranged above the vertical column along the horizontal direction, the connecting piece is used for connecting with the hoist, and the connecting plate is provided with a socket corresponding to the threaded groove. The present application has the effect of realizing high-strength connection of prefabricated beam-column joints.

The invention discloses a method for preventing corrosion of concrete members in a tidal range zone and a splash zone of an ocean, belonging to the field of concrete member corrosion prevention. Aiming at the protection requirement in special corrosion environment, the method comprises the following steps: coating a layer of silane impregnant on the outer surface of concrete, wherein the penetration depth is more than 1mm; after natural air drying, coating a layer of silane end sealing polyether sealant in a scraping way, wherein the thickness is 2-5mm; then wrapping a prefabricated protective cover immediately; coating a layer of sealant in the protective cover in a scraping way; sealing the upper and lower ends and the corners of the protective cover with the sealant; and coating the whole wrapping system with weatherproof finishing paint. In the method, the glass reinforced plastic protection technology is adopted and combined with the sealing protection technology of the silane end sealing polyether sealant and the silane impregnating protection technology, thus realizing the effective protection on the concrete members in the tidal range zone and the splash zone. The technical construction is simple as well as convenient and fast, and the sealant has a reliable and excellent protection effect, therefore, the method has a good market popularization prospect.

The invention discloses a multilayer stereotactic frame assembled by prefabricated reinforced concrete members. The multilayer stereotactic frame comprises prefabricated reinforced concrete vertical columns, prefabricated reinforced concrete column heads and a plugging type prefabricated reinforced concrete beam frame, wherein a plurality of vertical-column steel bar insertion heads are reserved in the lower ends of the prefabricated reinforced concrete vertical columns, and a plurality of vertical-column steel bar insertion holes matched with the vertical-column steel bar insertion heads are reserved in the upper ends of the prefabricated reinforced concrete vertical columns; a plurality of column-head steel bar insertion heads matched with the vertical-column steel bar insertion holes of the prefabricated reinforced concrete vertical columns are reserved in the lower ends of the prefabricated reinforced concrete column heads; a plurality of through holes corresponding to the vertical-column steel bar insertion holes of the prefabricated reinforced concrete vertical columns are formed in nodes of beam columns of the plugging type prefabricated reinforced concrete beam frame; the prefabricated reinforced concrete vertical columns and the plugging type prefabricated reinforced concrete beam frame are arranged in a multilayered manner. The multilayer stereotactic frame disclosed by the invention has the advantages that the construction is convenient and the pollution in site construction can be reduced.