47results about How to "On-site construction is fast" patented technology

The invention discloses a column-through assembled prestressed concrete frame system and a construction method thereof. The system comprises a foundation, a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, a superimposed floor slab and an external hung prefabricated wallboard, wherein a column prestressed duct is formed in the prefabricated reinforced concrete column; a beam prestressed duct is formed in the prefabricated reinforced concrete beam; post-tensioned unbonded prestressed tendons are penetrated into the beam prestressed duct and the column prestressed duct; energy-dissipation steel bars are anchored between the prefabricated reinforced concrete column and the superimposed floor slab. The structure provided by the invention has a good seismic performance; the lower part of a beam-column joint is subjected to unreinforced connection so that the structure is simple; the post-tensioned unbonded prestressed tendons and a replaceable column base energy dissipater are used so that the structure is less damaged and easy to be repaired in the earthquake; a construction manner of using the prefabricated superimposed floor slab and prestressed assembly makes site construction convenient and rapid and saves a lot of supports compared with a traditional prefabricated assembly structure; the column-through assembled prestressed concrete frame system provided by the invention is used in combination with lateral supports, shear walls and other lateral force resisting members, and is applicable to most high-rise public buildings.

The invention discloses a fixing method of an explosion vibration testing geophone. An employed fixing pedestal is a T-shaped conical pedestal formed by combining an iron plate (2) with an iron cone (1). Before a three-dimensional geophone (4) is installed and fixed at a field, first of all, the iron cone (1) of the T-shaped conical pedestal is hammered into the ground deep into a soil layer or a weathering layer by use of a hammer, and the iron plate (2) is adjusted to be flush with the ground; and slurry-form gypsum blended by adding water is poured to the iron plate (2) to form a gypsum layer (3), then the lower-portion pedestal of the three-dimensional geophone (4) is placed on the gypsum layer (3), a horizontal bubble at the top of the three-dimensional geophone (4) is adjusted to be at a center position, the X direction of the three-dimensional geophone (4) is oriented towards the center of an explosion area, and after the gypsum layer (3) is solidified, a special-purpose connecting line is used for connecting a monitor with the three-dimensional geophone (4). According to the invention, the employed iron cone (1) at the lower portion of the T-shaped conical pedestal can be deep into the ground according to the thickness of the weathering layer or the soil layer to be connected integrally with the ground, and explosion vibration detected on the pedestal can reflect real vibration intensity of a building at a certain place.

The invention discloses a pile box hydraulic structure object and a building method thereof. A sinking box and a steel pipe pile are manufactured onshore together and are conveyed to a construction site in a floating mode, temporary anchoring placing taking is carried out, the steel pipe column is placed in a sinking mode with the sinking box as a construction platform, the sinking box and the steel pipe pile are fixed through a locking device, an on-water temporary construction platform with pile-box combination is formed, bottom plate water stopping of the sinking box is carried out through a water stopping device, dry construction is carried out in the sinking box, post-pouring concrete is cast, and a whole stress structure is formed. Underwater working such as foundation processing is of no need at an early stage, the object can be adaptive to bad wave environment and complex geological conditions at sea, and the object and the method have the advantages of being quick in site construction and low in safety risk.

The invention discloses a mixed-connection post-tensioned prestressing assembly concrete frame system and a construction method thereof. The mixed-connection post-tensioned prestressing assembly concrete frame system comprises a foundation, a frame column, a frame beam and a floor; a connecting reinforcement is buried in the deigned position, inside the foundation, corresponding to the frame column, and the connecting reinforcement is in an L shape and comprises vertical edges and transverse edges connected to one sides of the bottom ends of the vertical edges; the lower portions of the vertical edges of the connecting reinforcement and the transverse edges are buried in the foundation, and the portion, buried in the foundation, of the connecting reinforcement comprises connecting reinforcement bonding sections and connecting reinforcement non-bonding sections; the connecting reinforcement non-bonding sections are located on the positions, located on the lower side of the top surface of the foundation and close to one end of the foundation, of the vertical edges, and the lengths of the connecting reinforcement non-bonding sections are 3-20 times the diameter of the connecting reinforcement; and the connecting reinforcement bonding sections are located on the positions, located on the lower side of the top surface of the foundation and close to one ends of the transverse edges,of the vertical edges and the transverse edges of the connecting reinforcement. According to the mixed-connection post-tensioned prestressing assembly concrete frame system and the construction methodthereof, the technical problems that in an existing structural system, the transporting hoisting difficulty is large, the structural robust property is low, the wet working quantity is large, and therepairing cost of column feet after earthquakes is high are solved.

The invention discloses a separate steel grid shear wall based on T-shaped steel members. An embedded steel plate is discretely arranged into the bi-directionally separated T-shaped steel members, andthe T-shaped steel members are arranged according to a basic principle of an existing steel plate shear wall mixed rod system simplification and calculation model. On the basis of the mixed rod system model, the embedded steel plate is of a steel grid structure composed of the T-shaped steel members, and the problems of large steel consumption of a steel plate shear wall system, deformation of outer surfaces of steel plates, residual stress, difficulty in construction and installation on site and the like can be solved. By reducing the vertical stiffness, the problem that steel plate shear walls bear large vertical loads when installed together with main body members can be solved. Therefore, the purposes of saving materials, simplifying model analysis, increasing the industrialization level, accelerating the construction and developing fabricated steel structure buildings are achieved.

The invention discloses a method for arranging anti-buckling energy dissipation structures at the root portion and a circular steel tube pier. The circular steel tube pier comprises an upper pier, a base and a lower pier which connects the upper pier with the base, the lower pier comprises an outer wall of a cylindrical structure, the outer wall is enclosed by high-strength steel plates, the inner portion of the outer wall is provided with the multiple anti-buckling energy dissipation structures, the anti-buckling energy dissipation structures are arranged in an annular array mode, each anti-buckling energy dissipation structure is composed of three layers of steel plates, the middle layer is an arc-shaped low yield point steel plate, the inner layer and the outer layer are arc-shaped steel shell plates, the arc-shaped steel shell plates and the arc-shaped low yield point steel plate are connected through bolts, and the two sides of the anti-buckling energy dissipation structure are connected with the two high-strength steel plates respectively through high-strength bolts. By means of the arc-shaped steel shell plates, the arc-shaped low yield point steel plate can be prevented from out-of-plane flexural buckling, the shear compression yield energy dissipation of the arc-shaped low yield point steel plate is guaranteed, and therefore the ductility, energy-dissipating capacity and seismic performance of the circular steel tube pier are improved.

The invention discloses a method for arranging anti-buckling energy dissipation structures at the root portion and a box steel pier. The box steel pier comprises an upper pier, a base and a lower pier which connects the upper pier with the base, the lower pier comprises a square outer wall of a cylindrical structure, the outer wall is enclosed by four high-strength steel plates, the inner portion of the outer wall is provided with the anti-buckling energy dissipation structures between the two high-strength steel plates (namely at the four corners of the lower pier) which are connected perpendicularly, each anti-buckling energy dissipation structure is composed of three layers of steel plates, the middle layer is an arc-shaped low yield point steel plate, the inner layer and the outer layer are arc-shaped steel shell plates, the arc-shaped steel shell plates and the arc-shaped low yield point steel plate are connected through bolts, and the two sides of the anti-buckling energy dissipation structure are connected with the two high-strength steel plates respectively through high-strength bolts. By means of the arc-shaped steel shell plates, the arc-shaped low yield point steel plate can be prevented from out-of-plane flexural buckling, the shear compression yield energy dissipation of the arc-shaped low yield point steel plate is guaranteed, and therefore the ductility, energy-dissipating capacity and seismic performance of the box steel pier are improved.

The invention discloses a steel-concrete combined system for improving the bearing capacity of a concrete box girder bridge, which comprises steel longitudinal beams, steel cross beams and pier reinforcing mechanisms, and the steel longitudinal beams and the steel cross beams are connected in a crisscross manner; each steel longitudinal beam comprises a main longitudinal beam mounted at the web plate position and a plurality of auxiliary longitudinal beams mounted at the bottom plate position, and the width of the main longitudinal beam is larger than that of the auxiliary longitudinal beams;each steel cross beam comprise a plurality of full-length type cross beams, sectional type cross beams arranged among the full-length type cross beams and supporting type cross beams arranged on the two sides of the original pier; each pier reinforcing mechanism comprises an outer wrapped concrete pier wrapping the outer portion of the original pier and a plurality of supports installed between the outer wrapped concrete pier and the supporting type cross beam. The bearing capacity of the concrete bridge can be greatly improved, the steel consumption is reduced, and construction is convenient.

The present invention discloses a novel assembled steel skeleton wood member, which comprises a section steel, an upper wing edge wood plate, a lower wing edge wood plate and two side wing edge wood plates, wherein the upper wing edge wood plate and the lower wing edge wood plate respectively cover the upper wing edge surface and the lower wing edge surface of the section steel, a silencing material and a thermal insulation material are respectively sandwiched between the upper wing edge wood plate and the upper wing edge surface of the section steel and between the lower wing edge wood plate and the lower wing edge surface of the section steel, and the two side wing edge wood plates are respectively arranged on both side wing edges of the section steel and are respectively and fixedly connected to the section steel. According to the present invention, the mechanical properties of the internal section steel are completely provided, and the internal section steel provides the force skeleton effect and can provide the sufficient carrying capacity; the protection capacity of the wood plate on the internal section steel is completely provided; by arranging the wood plates on both sides and the wing edges of the section steel, the corrosion on the steel structure can be effectively slowed down; and with the constraints of the wood structures of both sides and the wing edges on the steel structure, the out-of-plane stiffness of the internal section steel is improved, the steel beam out-of-plane instability can be avoided, and the whole stiffness of the structure is ensured.

The invention discloses a template table with the integrated installation of beam columns. The template table comprises a template, and two or more pairs of integrated beam columns arranged at the bottom part of the template, wherein each integrated beam column comprises a support plate, an installation plate, two or more horizontal support beams, vertical support rods with the quantity being thesame as the quantity of the two or more horizontal support beams, and inclined support rods with the quantity being the same as the quantity of the two or more horizontal support beams; the support plates are in circular shapes; annular guide rail slots extending along the circumferential directions of the support plates are formed in the outer circumferential walls of the support plates; and universal joints are connected to one ends of the horizontal support beams, are slidably arranged in the annular guide rail slots, and can rotate in the annular guide rail slots around own axes.

The invention relates to a metal-rubble composite preform for island protection. The metal-rubble composite preform comprises a body, wherein the cuboid body is coated with a fluorocarbon paint protective layer which is coated with a mortar protective layer, the body comprises a metal-based cell and rubble, the rubble is fixedly mounted in the metal-based cell through a bonding material layer, thewhole metal-based cell is of an upper-lower-layer cuboid box cell structure formed by a plurality of cells which are wholly of a box structure with an opening in one end, the cells on the upper layerof the metal-based cell open upwards, the cells on the lower layer open downwards, the rubble is arranged in each cell and has appearance and size which are matched with those of an inner cavity of the cell, and the rubble is fixedly connected with each side wall of the corresponding cell through the bonding material layer. The preform is applicable to protective engineering in specific areas such as an island and the like, has low comprehensive cost and has the advantage of simple and fast field construction.