19results about How to "Simple and fast construction" patented technology

The invention relates to the technical field of building construction, in particular to a bottom-expanded rotor steel pipe pile and a construction technology thereof.The bottom-expanded rotor steel pipe pile comprises a pile body steel pipe, a bottom-expanded wing ring and a pile top grouting blind plate, one end of the pile top grouting blind plate is a connector end, and the connector end is connected with the power end of a drilling machine; the rotary cutting is performed through the bottom-expanded wing ring; an injection cavity is formed in the pile body steel pipe. According to the bottom-expanded rotor steel pipe pile, the large bearing capacity can be provided under the small diameter. The steel pipe pile can form a larger bearing area in soil, so that the bearing capacity of a single pile is remarkably improved, and the steel pipe pile is suitable for various types of soil and rocks including soft soil, sandy soil, cohesive soil, soft rocks and the like. The rotary cutting mode is adopted for burying, the construction process is relatively simple and rapid, and the construction efficiency can be remarkably improved. And meanwhile, a large amount of slurry treatment and dumping operation are not needed, so that the construction time and cost are further saved.

The utility model discloses a two-way prestress weight reduction assembly type composite floor slab system. The two-way prestress weight reduction assembly type composite floor slab system comprises a pre-tensioning prestress prefabricated concrete bottom plate, weight reduction blocks, cast-in-place concrete ribs and post-tensioning prestress steel bars. Longitudinal prestressed load-bearing steel bars and transverse distribution steel bars are arranged in the pre-tensioned prestressed precast concrete bottom plate. A concrete reinforcing rib or a steel truss reinforcing rib or a steel and concrete combined structure reinforcing rib is arranged on the concrete bottom plate; the weight reducing blocks are laid on the pre-tensioned pre-stressed precast concrete bottom plate, and the weight reducing blocks are spaced by a certain distance. A plurality of pre-tensioned pre-stressed precast concrete bottom plates are assembled together, and concrete ribs are formed after the weight reducing blocks are cast in place. The prestressed steel bars are post-tensioned in the concrete ribs, and after the concrete reaches the strength, the steel bars are tensioned to form post-tensioned prestressing force to form bonded or unbonded prestressing force. According to the utility model, the bidirectional rigidity of the floor system is consistent, the bidirectional force transmission performance and the bidirectional anti-cracking effect are better, the integrity of the floor system is better, and more steel materials are saved.

The utility model discloses a novel reinforced concrete gate tower, which relates to the technical field of buildings and comprises double stand columns, fixing components arranged at the bottoms of the double stand columns, mounting components arranged at the top ends of the double stand columns, reinforcing components arranged on the upper portions of the mounting components, supporting components arranged on the double stand columns, and the supporting components arranged on the lower portions of the mounting components. The double stand columns serve as main bearing structures, concrete is poured in the double stand columns, and the strength and stability of the stand columns are remarkably enhanced. Through the synergistic effect of the supporting assembly, the mounting assembly and the reinforcing assembly, a multi-layer and multi-direction supporting system is formed, and the overall stability of the gate tower is effectively improved. The supporting inclined rods are obliquely connected with the double stand columns and the supporting transverse rods, so that the anti-overturning capacity is enhanced, and the gate tower is more stable under the action of external factors such as wind power. Due to the design of the fixing assemblies, especially the arrangement of the fixing needles, it is ensured that the double stand columns are firmly fixed to the ground, and the collapse risk caused by an unstable foundation or external force is reduced.

A kind of construction method of super high layer high altitude large-span cantilever concrete structure, including the following steps: step one, the structure optimization and construction drawing design of cantilever concrete structure;Step two, the deepening design of measure support, measure support includes support frame and hanging basket;Step three, main body first construction;Step four, precast concrete beam section field prefabrication;Step five, the manufacture and installation of support frame;Step six: the hoisting of precast concrete beam section;Step seven: the construction of cast-in-place concrete section;Step eight: the installation of upper pull rod and lower support rod;Step nine: in turn remove hanging basket, hanging platform and support frame.The present application solves the technical problems of complex construction technology, long construction period and high construction risk of large-span cantilever structure.

The utility model discloses a fixing structure of a gypsum keel, which belongs to the field of keels for decoration, and is characterized in that a crossed screw rod fixing piece, a crossed fixing piece, an L-shaped fixing piece, an end part fixing piece and a butt joint fixing piece are matched with a gypsum keel structure compared with a traditional connecting piece; on the premise that the installation contact area and the stress area are guaranteed, the overall weight is reduced in cooperation with the gypsum keel. The device mainly comprises a gypsum keel, a crossed screw rod fixing piece and a crossed fixing piece, the crossed screw rod fixing piece and the crossed fixing piece each comprise a door-shaped frame body, extending lug plates are symmetrically arranged on the edges of the two sides of the door-shaped frame body of the crossed screw rod fixing piece and the door-shaped frame body of the crossed fixing piece, and gypsum keel fixing strips are arranged at the bottoms of the extending lug plates. Gypsum keel fixing strips are symmetrically arranged on the inner side of the door-shaped frame body of the fork screw fixing piece and the inner side of the door-shaped frame body of the cross fixing piece. The gypsum board fixing device is mainly used for fixing gypsum boards in decoration.

The utility model relates to an equal-strength steel truss reinforcing structure of a structural damage PC box girder, and belongs to the technical field of building structure reinforcing. Comprising a steel truss with the same strength as a PC box girder, and the steel truss is of a cuboid space steel truss structure; a plane truss is arranged on the face, opposite to the steel truss, of the web plate, and the plane truss and the steel truss are fixed to the two sides of the web plate through opposite-pull screws. The steel truss is located on the inner side or the outer side of the web. Anchor bolts and steel gaskets are further arranged on the opposite-pull screws to reinforce and fix the steel trusses and the plane trusses and anchor the opposite-pull screws. And the opposite-pull screws are arranged at the joints of the chord members in the steel truss. A steel-concrete transition connecting section is arranged at the end part of the steel truss and is fixed through an opposite-pull screw rod; and the number of the opposite-pull screws on the transition connecting section is determined according to the tensile force borne by the steel truss chord member and the tensile force which can be borne by a single opposite-pull screw. The equal-strength steel trusses are arranged on the box girder in the damaged area, and meanwhile small original structure damage and a strong reinforcing effect are guaranteed.

The utility model relates to the technical field of steel structure assembly, and discloses an assembly type steel structure quick connecting assembly which comprises a first supporting cylinder, the outer wall of the first supporting cylinder is fixedly connected with a fixing plate, the interior of the fixing plate is fixedly connected with a fixing rod, and the outer wall of the fixing rod is rotationally connected with a first threaded rod. The outer wall of the first threaded rod is slidably connected with a connecting plate, a limiting groove is formed in the connecting plate, the outer wall of the first threaded rod is in threaded connection with a first rotating block, and fixing assemblies are arranged in the fixing block and the first supporting cylinder. According to the connecting device, the first threaded rod is driven to slide in the connecting plate, and the first rotating block is driven to rotate on the outer wall of the connecting plate, so that the connecting plate is limited and fixed on the outer wall of the first supporting cylinder, quick connection of steel structural members is realized, the construction period is greatly shortened, and the construction process is simpler, more convenient and quicker; and tighter and more accurate connection between the steel structural members is ensured.

The utility model belongs to the technical field of building construction, and particularly relates to an embedded pipe for conveying basement constructional column concrete. The pipe orifice section is hollow; the elephant trunk section is hollow inside, the elephant trunk section is fixedly installed below the pipe opening section, a channel for concrete to flow is formed by the elephant trunk section and the pipe opening section, and the inner contour line of the bottom of the pipe opening section falls on the inner contour line of the top of the elephant trunk section; and the pipe clamp is arranged outside the articulated chute section. Compared with the prior art, the concrete conveying chute has the beneficial effects that the concrete conveying chute is formed by the pipeline, so that concrete is quickly conveyed to a basement, the concrete conveying time is shortened, and the labor cost is also reduced; the pipe orifice section is pre-buried in a basement top plate, and the articulated chute section is fixed on a structural column by using a pipe clamp and a screw, so that the articulated chute section is stable and can be repeatedly used for multiple times, rapid conveying is performed, the on-site waiting time of concrete is shortened, the concrete pouring quality is favorably improved, and the construction difficulty is reduced.

The application discloses a bottom mould floor support plate construction technology suitable for steel-concrete composite beam cast-in-situ bridge deck plate construction and belongs to the field of cast-in-situ concrete component form construction, which can solve the problems of difficult installation of the bottom mould of the steel-concrete composite beam cast-in-situ bridge deck plate, large waste of building materials, cost increase and slow construction period. According to the size of the floor support plate, the application performs line laying at a reinforcing position of the top plate of the steel beam, performs installation and connection, straightens, flattens, connects and fixes the arranged floor support plate. The connection between the floor support plates is reinforced by adding fillet welding. The two sides of the steel-concrete composite beam are each provided with a 70cm cantilever arm, and the concrete thickness is 20cm. The cantilever arm part of the side beam is constructed by using a hanging form method, a steel cantilever beam is arranged on the top of the steel beam to hang up the steel bar truss floor support plate bottom mould. After the floor support plate is paved, the steel bars are bound, and the bridge deck plate is poured. The steel bar truss floor support plate satisfies various loads such as structure and construction, can avoid construction procedures such as formwork erection, formwork removal, support system erection and removal and the like, and improves construction operation efficiency.

The utility model discloses an assembly type Tangjia, relate to ancient building technical field, including ridge tile and the rainproof barrel tile of carding on ridge tile, the ridge tile is inverted U type, and the top plate of ridge tile is seted up and is poured into the hole, and the both sides board between ridge tile fixedly installed has the connecting plate, and the middle part of both sides board lower extreme of ridge tile all is seted up and has the avoidance slot, the rainproof barrel tile includes semicircular tile body, and the length of tile body is same with ridge tile, and one end of tile body is equipped with the rainproof slot I of recessing inwards, and the other end fixedly installed has the assembly tile platform, and the outer diameter of assembly tile platform is not greater than the inner diameter of tile body, and the middle part of assembly tile platform is equipped with the rainproof slot II of cooperation with rainproof slot I. This assembly type Tangjia adopts assembly type design, only needs to card ridge tile on roof ridge in proper order when constructing, then carries out concrete pouring, finally covers rainproof barrel tile, can, and the construction process is simple and quick, has improved construction efficiency, has reduced construction cost.

The utility model discloses a shallow cofferdam high hot galvanizing steel wire sandbag cage relates to hydraulic engineering construction technical field, including revetment sandbag cage, and the revetment sandbag cage is constituted by high hot galvanizing steel wire mesh pad and is filled with sandbag in the inside, and the revetment sandbag cage is piled up and is distributed on the water face revetment of shallow cofferdam, the utility model discloses high hot galvanizing steel wire sandbag cage, and the structural strength is high, can effectively resist the scour and lateral pressure of water flow, compared with traditional sandbag cofferdam, and the stability is greatly improved, can be applicable to the shallow water area construction of the water flow speed being bigger. Since steel wire mesh pad is treated by high hot galvanizing, has excellent corrosion resistance, can still keep good structural performance under the condition of long -term soaking in water, prolongs the service life of cofferdam, and reduces the later maintenance cost. Sandbag cage can be prefabricated in the factory, and only needs assembling and filling sandbag on the spot, and the construction process is simple and quick, reduces a large amount of manual filling and handling work, and greatly improves construction efficiency.

The utility model discloses a kind of super-high column formworks of steel mould and aluminium mould column cap combination, comprising: vertical column steel mould, horizontal aluminium mould plate and aluminium mould column cap assembly, horizontal aluminium mould plate is fixedly connected in aluminium mould column cap assembly bottom by bolt, vertical column steel mould top end is fixedly connected horizontal aluminium mould plate bottom end by bolt, vertical column steel mould includes steel mould plate and first angle steel, aluminium mould column cap assembly includes aluminium mould plate main body and second angle steel, first angle steel is fixedly connected between adjacent steel mould plate by bolt, second angle steel is fixedly connected between adjacent aluminium mould plate main body by bolt, the utility model has following advantages: the utility model vertical column steel mould, horizontal aluminium mould plate, aluminium mould column cap set adopts the mode of assembly, can be directly assembled in existing ground, finally adopt hoisting forming, construction efficiency is high, by locating block cooperation locating groove, it can guarantee that steel mould plate and first angle steel between, and aluminium mould plate main body and second angle steel between connection cannot occur displacement.

The invention discloses a two-way prestress overlap-reducing composite floor system which comprises a pre-tensioning prestress precast concrete bottom plate, weight reducing blocks, cast-in-place concrete ribs and post-tensioning prestress steel bars. Longitudinal prestressed load-bearing steel bars and transverse distribution steel bars are arranged in the pre-tensioned prestressed precast concrete bottom plate. A concrete reinforcing rib or a steel truss reinforcing rib or a steel and concrete combined structure reinforcing rib is arranged on the concrete bottom plate; the weight reducing blocks are laid on the pre-tensioned pre-stressed precast concrete bottom plate, and the weight reducing blocks are spaced by a certain distance. A plurality of pre-tensioned pre-stressed precast concrete bottom plates are assembled together, and concrete ribs are formed after the weight reducing blocks are cast in place. The prestressed steel bars are post-tensioned in the concrete ribs, and after the concrete reaches the strength, the steel bars are tensioned to form post-tensioned prestressing force to form bonded or unbonded prestressing force. According to the device, the consistency of the two-way rigidity of the floor system can be achieved through the two-way prestress, the two-way force transmission performance and the two-way anti-cracking effect are better, the integrity of the floor system is better, and more steel materials are saved.

The utility model relates to a kind of newly added floor and existing wall key type connection combined structure, including newly added floor structure and existing building wall, newly added floor structure is located between multiple existing building wall, and existing building wall and newly added floor structure are connected by reinforcing bar key, the inside of newly added floor structure is provided with multiple hollow box, newly added floor structure includes multiple rib beam reinforcing bars, multiple rib beam reinforcing bars are divided into X-axis beam reinforcing bar and Y-axis beam reinforcing bar, and reserved space is formed between X-axis beam reinforcing bar and Y-axis beam reinforcing bar, hollow box is installed in reserved space inside, and cast-in-place concrete slab body is formed with the outside of rib beam reinforcing bar and hollow box by pouring molding.The utility model can have the advantages of retaining historical building style, effectively reducing structural dead weight, reducing the pressure on original structure, improving the load-carrying capacity and seismic performance of floor system, and facilitating and quick construction.

This utility model relates to a prestressed reinforcement structure for concrete beam-column joints, comprising a split steel sleeve consisting of multiple arc-shaped steel plates temporarily fixed to the outside of the frame column by high-strength bolts, with butt joints welded together to form a closed ring structure; a lower connecting steel plate horizontally welded to the bottom of the sleeve; an upper connecting steel plate covering the top of the beam and welded to the sleeve; chemical anchor bolts penetrating the lower connecting steel plate and anchored to the side wall of the prestressed concrete beam; additional longitudinal reinforcement including: steel bars within the beam width fully welded to the steel plate through Φ25mm plug weld holes; longitudinal reinforcement extending to the floor slab outside the beam width and anchored thereto, tied to the stirrups to form a grid; and a grouting layer filling the space between the column and the sleeve. This utility model avoids cutting off the beam, fully preserving the performance of the prestressed tendons; the sleeve and anchor bolts work together to improve the joint's load-bearing capacity and seismic resistance; the modular design adapts to different beam and column sizes, offering strong versatility; construction requires no large equipment, reducing interruptions to building functions.

The application discloses a high-altitude conversion construction method of a building machine of a variable cross-section shear wall, belongs to the technical field of super-high building construction, and is applied to the construction condition that continuous inclined cut corners appear at the corner part of the building structure of the Nth floor and the N+1th floor of a high-rise building and comprises the following steps: S1, pouring N-1th floor concrete; S2, installing a stabilizing column at the corner part of the building structure of the Nth floor; S3, pouring Nth floor concrete; S4, respectively installing temporary beams between the two shear walls close to the corner part of the building structure of the Nth floor and the stabilizing column; and S5, integrally jacking up the building machine, and the inner frame body of the building machine is connected with the temporary beams at the inclined cut corner position of the building structure of the Nth floor. The building machine can adapt to the construction environment of the shear wall variable cross-section in various forms such as the inclined cut corner of the corner part of the building structure, shear wall expansion and shear wall shrinkage, the building machine structure is avoided from being greatly disassembled and reconstructed, the conversion of the building machine on the high-rise building is efficiently and safely realized, and the construction efficiency is improved.

This invention provides a large-span swing bridge structure and construction method based on a self-anchored suspension structure. The structure includes: a main bridge body, comprising a first pier, a main tower, and a first beam, the first beam being fixed to the top of the first pier; first suspension cable assemblies symmetrically arranged on both sides of the main tower, one end of each suspension cable assembly being fixed to the top of the main tower; and a swing system, comprising a pier cap, an upper turntable, and a lower turntable, the lower turntable being fixed to the top of the pier cap, the upper turntable being located above the lower turntable, the first pier being fixed to the top of the upper turntable, and a rotating assembly installed between the upper and lower turntables. The method includes: casting the lower turntable in place, constructing an annular slide, and placing spherical hinge supports; casting the upper turntable in place, fixing jack reaction seats, and placing support legs; completing the construction of the first pier, main tower, and first beam, arranging the first main cable, and tensioning the first suspender; and rotating the main bridge structure to the corresponding position. This invention is applicable to the construction of swing bridges of various spans, especially large spans.

The utility model discloses a Yellow River embankment assembly type road protection pier, and relates to the technical field of Yellow River embankment maintenance, the Yellow River embankment assembly type road protection pier comprises a plurality of road protection pier bodies, assembly rods are arranged between adjacent road protection pier bodies, buffer grooves are formed in the front side and the rear side of each road protection pier body, and inner cavities of the buffer grooves are slidably connected with buffer assemblies; the top of the road protection pier body is in a U shape, and connecting columns are fixedly installed at the front position and the rear position of the opposite sides of the top of the road protection pier body. According to the assembly type road protection pier, the road protection pier body can be rapidly disassembled from the Yellow River dam through the mounting plate, rapid disassembly and assembly of the road protection pier body are achieved, large vehicles and vehicles special for embankment maintenance can conveniently and timely pass through, it is ensured that flood prevention and emergency rescue work is smoothly conducted, the construction process of the assembly type road protection pier is relatively simple and convenient, and the construction efficiency is improved. The field workload and construction time are reduced, the influence on the surrounding environment is reduced, the visibility at night or under the condition of poor sight can be improved by arranging the reflective strips, and the driving safety is improved.

This invention discloses a method for monitoring the lateral pressure of cantilever anti-slide piles, comprising the following steps: setting up a coordinate positioning acquisition instrument and a monitoring point calculation module; dividing the left or right side of the cantilever section of the anti-slide pile into a monitoring grid, and selecting displacement and lateral pressure monitoring points; acquiring the coordinates of the monitoring points using the coordinate positioning acquisition instrument on the ground; calculating and determining the turning point positions on the front and rear sides of the pile body using the monitoring point calculation module; determining the displacement and deflection distribution of the monitoring points based on pile deformation and the non-uniformly distributed external load characteristics of the pile-soil interface in the loaded section of the cantilever pile; and obtaining the analytical formula for fitting the lateral pressure at any point on the side of the cantilever anti-slide pile by converting the deflection of the monitoring points in the loaded section of the cantilever pile. This invention overcomes the problems of anti-slide pile breakage, slope landslides, and human error caused by unreasonable monitoring schemes or results regarding the turning point positions, pile deformation, and lateral pressure of anti-slide piles during service, as well as the complex technology, high risk, and high monitoring costs. It ensures that the rapid monitoring method is environmentally adaptable, safe to operate, simple to construct, low-cost, and highly accurate.