65results about How to "Reduce cross work" patented technology

The invention belongs to the technical field of coatings, and particularly relates to a water-based sound insulation coating for ground sound insulation and shock absorption, and a preparation methodthereof. The coating comprises an emulsion, a filler, aggregates, a halogen-free flame retardant, a defoaming agent, a bactericide, a thickening agent, a dispersing agent and deionized water, and further comprises rubber particles and rubber fibers. The coating of the invention has better flowability, film-forming property, sound insulation property, damping property and shock absorption propertythan coatings in the prior art, and is better than other sound insulation coatings with the same thickness; the sound insulation coating can achieve A1-level fire prevention, and has the advantages ofenvironmental friendliness, no pollution, good protecting effect on buildings, good adhesive force, good permeability, good compatibility with a base material, and no crack; the production technologyof the coating has the advantages of simplicity, easiness in implementation, improvement of the performances of the coating through reasonable dispersion and mixing of all the components, simplicityin construction operation, avoiding of node treatment with complex procedures, reduction of cross operation, reduction of the procedures of other traditional floor sound insulation methods by at least50%, and high cost performance.

The invention discloses a tool type concrete composite slab cast-in-situ connecting section formwork supporting device. The tool type concrete composite slab cast-in-situ connecting section formwork supporting device solves the problem that existing concrete composite slab cast-in-situ connection adopts a hanging formwork or a traditional full-hall support method and the problems that connection section formwork support and prefabricated part support interfere with each other, supporting materials are large in dosage and the mounting accuracy and installation quality of the formwork are difficult to guarantee exist. Two supporting stand column inserting holes are formed in the middle portion of a supporting cross beam, two transverse adjusting pieces are symmetrically arranged at the two ends of the supporting cross beam, the transverse adjusting pieces are connected with the supporting cross beam in a threaded mode, two supporting stand columns correspond to the two supporting stand column inserting holes in a one-to-one mode, and the supporting stand columns are connected with the supporting cross beam in an inserting mode. Vertical adjusting pieces are connected to the upper ends of the supporting stand columns in a threaded mode, U-shaped brackets are connected to the upper ends of the vertical adjusting pieces in a threaded mode, the U-shaped brackets are internally provided with formwork supporting beams, and a bottom formwork is arranged above the two formwork supporting beams. The tool type concrete composite slab cast-in-situ connecting section formwork supportingdevice is used in the construction of fabricated composite concrete floor.

The invention discloses a ground type external-circulation double-layer curved-face curtain wall and an installation technology thereof. The ground type external-circulation double-layer curved-face curtain wall comprises a curved-face inner curtain wall body and a curved-face outer curtain wall body, wherein the curved-face inner curtain wall body is installed on a main body structure, and the curved-face outer curtain wall body is located on the outer side of the inner curtain wall body and fixed to the main body structure through an outer supporting system penetrating through the inner curtain wall body. An inner curtain wall unit body is installed between the upper and lower adjacent floors of the main body structure, the bottom of the inner curtain wall unit body is supported on a concentric rotary bottom adjusting assembly installed at the top of the lower floor, the top of the inner curtain wall unit body is fixed to a concentric rotary top adjusting assembly installed at the bottom of the upper floor, and the concentric rotary bottom adjusting assembly and the concentric rotary top adjusting assembly adjust the inclination and upward-facing angle, towards the indoor space,of the inner curtain wall unit body through a concentric rotary mode. According to the ground type external-circulation double-layer curved-face curtain wall and the installation technology thereof, the curtain wall structure is simple, the energy-saving effect of double-layer curtain-wall external circulation is achieved, the appearance visual demand of a smooth curved face is further met, the structural safety performance is good, the installation technology is easy to implement and not tedious, and the construction efficiency is high.

The invention relates to a welding method and an assembly process of press machine trolleys, and belongs to the technical field of press machine assembly. The method comprises the following steps of marking cross center lines at the bottoms of supporting bottom plates of the press machine trolleys; assembling bottom transverse supporting plates and bottom longitudinal supporting plates by taking the cross center lines as references; assembling remaining parts on the press machine trolleys on the basis of the supporting bottom plates, and meanwhile, performing positioned welding on each part; and combining and fixing the faces, used for containing materials, of the supporting bottom plates of the two press machine trolleys together, welding welding seams of the two press machine trolleys atthe same time, and after welding is completed, separating the two supporting bottom plates of the two press machine trolleys. By means of the method, welding deformation of the press machine trolleysis controlled, and the welding quality is guaranteed.

The invention discloses a door window embedded structure of an assembly type building and a construction and installation method of the door window embedded structure. The door window embedded structure comprises an embedded part, an aluminum profile outer frame, a regulator, a self-tapping screw, a waterproof adhesive tape, a sealing rubber strip and a hole cover, sealing holes are formed in twoends of the embedded part respectively; and a groove and a screw hole are formed in the middle of the embedded part; the regulator is arranged at the position, opposite to the groove, of the aluminumprofile outer frame in a penetrating mode till the regulator abuts against the interior of the groove of the embedded part so as to adjust the distance between the aluminum profile outer frame and theembedded part. A screw penetrates through the position, corresponding to the screw hole, of the aluminum profile outer frame until the aluminum profile outer frame is in threaded connection into thescrew hole, so that the aluminum profile outer frame is fixedly connected with the embedded part. The sealing holes in two ends are filled with a waterproof rubber strip and a sealing rubber strip respectively so that junctions of two sides of the aluminum profile outer frame and the embedded part are in a sealed mode, and two hole covers are arranged in the aluminum profile outer frame in a penetrating mode.

The invention provides a sound insulation coating and a preparation method thereof. The coating comprises the following components in parts by weight: 6-7 parts of polyvinyl acetate; 1-2 parts of silicon dioxide powder; 2-3 parts of glass fibers; 6-7 parts of aluminum oxide powder; 9 to 10 parts of dicalcium silicate powder; 2-3 parts of magnesium oxide powder; 1-2 parts of barium sulfate powder;and 50-51 parts of distilled water. The method comprises the following steps: uniformly stirring dicalcium silicate powder, silicon dioxide powder, aluminum oxide powder, magnesium oxide powder, barium sulfate powder, polyvinyl acetate and glass fibers to obtain a mixture, uniformly stirring the mixture and distilled water, and continuously stirring for 2 hours to obtain the sound insulation coating. The coating is an environment-friendly aqueous coating, is soundproof, damping and shock-absorbing, and has a wide application range; the construction is simple and convenient; and the sound insulation coating is good in adhesion, good in permeability, good in compatibility with a base material, free of cracking, capable of achieving a good sound insulation effect only by forming a coating layer of 3-5 mm, environmentally friendly and free of pollution.

The invention discloses a prefabricated offshore booster station upper module and a construction method thereof. The upper module comprises a first-layer deck and a second-layer deck which are arranged on a jacket; a 35KV power distribution chamber and a screen body room are arranged on a left side of the second-layer deck, a main transformer chamber is arranged in the middle, a GIS power distribution chamber and an auxiliary equipment chamber are arranged on the right side, a screen body chamber is located above the 35KV power distribution chamber and connected with the 35KV power distribution chamber through a T-shaped hook, and the auxiliary equipment chamber is located above the GIS power distribution chamber and connected with the GIS power distribution chamber through a T-shaped hook; the main transformer chamber and the 35KV power distribution chamber are connected through a 35KV cable, the main transformer chamber and the GIS power distribution chamber are connected through a 220KV cable, and the 35KV cable and the 220KV cable are both located between the first-layer deck and the second-layer deck. According to the upper module and the construction method thereof, a modularprefabricated booster station is adopted, and the upper module and the construction method thereof have the advantages of being short in construction period, less in cross operation, low in management cost, less in redundant design and safe in construction.

The invention relates to a phase-I installation method for a gate slot of a hydropower station gate. A self-lifting trolley is adopted in a narrow and small space so that an embedded part is connectedinto an integrated structure and stressed jointly, and a template is automatically lifted for suspension construction through the self-lifting trolley. The installation method overcomes the problemsof large potential safety hazard and long period of cross operation caused by the traditional installation method of the gate slot of the original hydropower station requiring to weld a joint bar andinstall and disassemble a scaffold for many times, and the method has the characteristics of reducing multiple welding of the joint bar, no need to set up the scaffold, no need of cross operation, improving the safety during operation and avoiding damage to the gate slot during pouring.

The invention discloses a cable-stayed bridge concrete beam combined hanging basket construction method. Stay cable construction is divided into two times of tensioning, the two times of tensioning are conducted after segment pouring and hanging basket walking respectively, the internal force influence on new concrete and old concrete due to different working conditions is reduced, cross operationis reduced, and effective control over the line shape of a finished bridge is enhanced; due to the fact that a small cross beam is arranged between two box chambers of a main beam, when a hanging basket moves forwards after concrete pouring is completed, due to blocking of the cross beam, a hanging basket bottom die system needs to be lowered firstly. Therefore, small wood molds convenient to mount and demount should be adopted for the cross beam portion plate, the demounted formwork and the demounted support are flatly laid on the hanging basket bottom mold, the lowering height of the hanging basket hanging system is reduced, lowering time is saved, and the underbridge navigation clearance requirement can be met. The method is applied to the field of bridge hanging basket construction.

The invention discloses a fabricated wind power tower quick assembling device and construction method. The fabricated wind power tower quick assembling device comprises an assembling table and transporting tracks and is mounted in a site, the site comprises an assembling area and a plurality of to-be-lifted areas, and the transporting tracks are formed between the assembling area and all the to-be-lifted areas. The assembling table is arranged in the assembling area, towers are assembled on the assembling table, and the towers and the assembling table slide to all the to-be-lifted areas alongthe transporting tracks. The fabricated wind power tower quick assembling device and construction method have the beneficial effects that site function division is clear, the use cost of a truck cranein the assembling process is lowered, the area occupied by the site is decreased, the assembling quality is easier to control, the space for track transferring is saved, reliability is high, the lifting efficiency is advantageously improved, and green construction is facilitated.

The invention discloses an overwater building construction platform and an erecting method thereof, as well as a method that uses the construction platform to conduct overwater building construction. The overwater building construction platform comprises a base, a longitudinal beam, a cross beam, a walkway board and a protective barrier. The erecting method of the overwater building construction platform comprises the steps of: steel pipe pile inserting and piling, cross bridging welding, longitudinal beam installing, cross beam installing, walkway board installing, and protective barrier installing. The method using the construction platform to conduct overwater building construction comprises the steps of: construction platform erecting, building pile foundation construction, building beam column construction, construction platform dismantling, and building floor slab construction. For the overwater buildings such as an overwater restaurant, a scenic pavilion and an overwater dock of which the structure bottom elevation above the pipe is higher than the water level elevation, which are located in inland rivers or lakes, the overwater building construction platform and erecting method and use method thereof adopt the cofferdam-free construction scheme, can effectively solve the disadvantages of cofferdam construction, reduces the construction costs, and shortens the construction period.

The invention discloses a ring lock type double-row outer scaffold cantilever structure. The ring lock type double-row outer scaffold cantilever structure comprises a scaffold. The scaffold is composed of multiple bodies. Each body comprises a horizontal rod, an inclined rod and four vertical rods, wherein double-groove type longitudinal beams are mounted between two vertical rods and the other two vertical rods, the two double-groove type longitudinal beams are arranged in parallel, an adjustable supporting seat is connected to the double-groove type longitudinal beams, an adjustable supporting seat sleeve is arranged on the adjustable supporting seat, the adjustable supporting seat and the adjustable supporting seat sleeve can relatively move up and down, the adjustable supporting seat comprises a lead screw with an outer thread, a jacking baffle with a groove type opening and an adjustable nut screwed to the lead screw, and the jacking baffle is connected to the bottoms of the double-groove type longitudinal beams. Each adjustable supporting seat sleeve comprises a round steel sleeve, a cushion plate with a round hole and a sleeve limiting plate, wherein the cushion plate and the sleeve limiting plate are welded to the upper end and the lower end of the round steel sleeve. The round steel sleeves sleeve the lead screws, the cushion plates are located below the adjustable nuts, and a double-groove type cantilever steel beam is arranged between the two round steel sleeves. The ring lock type double-row outer scaffold cantilever structure is ingenious in design and convenient to construct.

The invention discloses a six-pilot-tunnel twelve-step underground space excavation support and protection method and belongs to the field of construction engineering. According to the method, outer contour line straight walls are excavated first along a structure and a phi108 advanced large pipe shed is arranged at a flat top position, and the outer contour line straight walls and the phi108 advanced large pipe shed are used as an integral support of an underground space after grouting; according to the size of the structure, an excavation section is divided into six pilot tunnels, and each pilot tunnel is divided into upper and lower steps and excavated in two steps, so that there are six pilot tunnels excavated in twelve steps in total; every two adjacent pilot tunnels are excavated ina jumped manner and staggered in the front and rear direction, the first, third and fifth pilot tunnels are first constructed, and then the second, fourth and sixth pilot tunnels are constructed. In this way, the large section is integrally broken into parts, the exposed area of a tunnel face is reduced, and the second, fourth and sixth pilot tunnels are constructed later, for example, three pieces of core soil stabilize ground loads. After the first, third and fifth pilot tunnels are closed into loops and the settlement is stable, the second, fourth and sixth pilot tunnels are excavated, so that the relative settlement is less, and the excavation is faster. The method has good safety and high efficiency.

The invention provides a half-inverted-mounting construction structure and method for a frame or cylinder bearing high-rise modular building. The half-inverted-mounting construction structure comprises a frame structure, standard module layers mounted in a frame, rack transporting devices mounted on frame columns, and hoisting devices independent from the frame structure. The half-inverted-mounting construction method comprises the steps that firstly, upright-mounting construction of the frame is conducted, the standard module layers are accumulated into multiple module layers by the hoistingdevices and then transported into the frame structure to constitute an accumulated hoisting unit, and then inverted mounting of the standard module layers is conducted with the whole layer of combination units as a unit. The half-inverted-mounting construction structure and method for the frame or cylinder bearing high-rise modular building have the beneficial effects that the half-inverted-mounting construction structure and method can be used for safe, rapid and economic mounting, the construction period can be effectively shortened, and the cost is saved.

The invention discloses a construction method of a novel corrosion-resistant pressed metal shelter roof. Novel corrosion-resistant pressed stainless steel plates are successively connected in an overlap joint manner on a beam to form a roof panel and the roof panel is connected with the beam. And Novel corrosion-resistant pressed stainless steel plates are successively connected in an overlap joint manner on the beam to form a gutter and the gutter is connected with the beam. The construction method has the following beneficial effects: on the basis of the strength and rigidity of the novel corrosion-resistant pressed stainless steel plates, the plates can serve as a working platform to support the staff and thus no extra supporting structure to support the under-construction roof and theconstruction staff is needed, so that construction of the supporting structure is saved and thus the use of materials, manpower and equipment can be reduced; the construction period occupied by the construction of the supporting structure is saved, so that the construction period is shortened and the construction cost is saved.

The invention provides a vertical type flow-line forming method for PCCP cores, which can realize flow-line production of the PCCP cores to increase the production efficiency. The method comprises the following steps: 1) designing flow lines suitable for forming the PCCP cores according to a productivity requirement; 2) performing PCCP core demoulding, including cleaning top covers and outer moulds of vertical type PCCP moulds and spraying a release agent to the top covers and the outer moulds of the vertical type PCCP moulds; 3) cleaning inner moulds and bases of the vertical type PCCP moulds and spraying the release agent to the inner moulds the bases of the vertical type PCCP moulds; 4) mounting steel cylinders and assembling the vertical type PCCP moulds; 5) pouring concrete; 6) troweling concrete at the spigot ends of the PCCP cores; and 7) curing the PCCP cores with the vertical type PCCP moulds.

The invention discloses a method and drainage structure for preventing and treatingcollapsible loess subsidence, and relates to the field of construction. The method comprises the following steps thata working site isdetermined according to a ground elevation; replacement filling soil ispaved on a lower bearing layer of the working site and the replacement filling soil iscompacted; a waterproof material is paved on the replacement soil; water-permeable blind pipesare paved transversely on the waterproof material; and after the water-permeable blind pipesarepaved, the working site is backfilled to the ground elevation. According to the method and drainage structure, during construction, the constructioncan be divided into block flow insertion work, the cross work in the construction iseliminatedcompared with a conventional method, the processes aresimplified, the construction period isshortened, and the method and drainage structure are especially suitable for a thick collapsible loessarea.