88results about How to "Improve connection integrity" patented technology

A method and apparatus for welding two separate ends of an extrusion or two separate extrusion ends to form a flashless extrudate or gasket by having a first and a second mold for supporting and clamping the extrusion ends, and a spacer bar for positioning the extrusion ends to a location within the mold. A heating element elevates the temperature of the extrusion ends to a welding condition, and a clamping device is used for securing the extrusion ends. A flashless welding operation results by inserting and clamping at least one heated extrusion end into a welding mold until an acceptable contact pressure is obtained against the opposing heated extrusion end.

The invention relates to a wood structure anti-shearing connecting element, a connecting structure, a box body platform structure and a construction method. The connecting element is of an integral structure formed by sequentially and vertically bending a metal plate, and comprises a U-shaped web plate, flanges and hook heads, wherein the flanges symmetrically extend out from the two side surfaces of the web plate; the hook heads are formed by bending from the upper end parts of the flanges in a direction of being opposite to the web plate; and connecting holes are formed in each of the web plate, the flanges and the hook heads. The box body platform structure can be used as a lower part support structure for transforming the ground of a stadium into an ice surface; on the premise of not damaging the original field, the temporary transformation in the functional aspect can be fast completed by using the box body structure; and a technical feasible scheme is provided for transforming the existing ordinary stadium into a winter event stadium. By using the connecting element, the stability of the box body structure is ensured; and the reliability of the structure as a whole lower part supporter is ensured; the construction is simple and fast; the time and the labor are saved; and the construction efficiency and the construction quality can be effectively improved.

The invention discloses a novel assembly type connecting joint. The novel assembly type connecting joint comprises a prefabricated bracket column and prefabricated beams, and further comprises screw rods, first through holes, grooves, tie rods and second through holes, wherein the screw rods are fixed to brackets and parallel to the prefabricated bracket column, the ends of the prefabricated beamsare placed on the brackets and connected with the brackets in a bolt fit mode, the first through holes are formed in the end parts, corresponding to the screw rods, of the prefabricated beams in a penetrating mode, the grooves are formed in the surfaces of the end parts of the prefabricated beams and comprise first grooves formed in the upper ends of the first through holes, the diameters of thefirst grooves are larger than the diameters of the first through holes, the grooves further comprise second grooves perpendicular to the width direction of the prefabricated beams, one ends of the second grooves communicate with the first grooves, the other ends of the second grooves extend to the edges of the end parts, circular rings are arranged at the two ends of rod bodies of the tie rods, the sizes of the rod bodies are matched with the sizes of the second grooves, the outer diameters of the circular rings are matched with the size of the first grooves, the inner diameters of the circular rings are the same as the diameters of the first through holes, and the second through holes are formed in the mode of being parallel to the width direction of the prefabricated bracket column in apenetrating manner.

The invention relates to a suspension and protection system for a water supply pipe crossing a foundation pit and a construction method. The system is characterized by comprising a water supply pipe area foundation pit excavation auxiliary sizing device; a pile-beam integrated suspension supporting beam placing system; a unit assembly type suspension and protection system for the water supply pipecrossing the foundation pit; a rigid cast-in-situ concrete base and light roof covering backfill system for the water supply pipe crossing the foundation pit. The invention belongs to the field of underground engineering, effectively protects the integrity of a water supply pipe crossing the foundation pit, improves the construction safety, solves the integral stability problem of the suspensionsupporting structure consisting of a supporting pile and a reinforced concrete lintel, and obviously improves the construction efficiency, the construction process is simple and feasible. And good technical and economic benefits can be obtained when the system is applied to practical projects.

The invention relates to a construction method facilitating guarantee of hollow floor structural size. The construction method comprises the following steps that S1, a horizontal bottom formwork is laid; S2, a plurality of bottom layer steel bar cushion blocks are arranged on the bottom formwork, and a bottom steel bar layer is laid; S3, a plurality of second connecting pieces are used for connecting the bottom steel bar layer with the bottom formwork; S4, a plurality of placeholder box body cushion blocks are arranged on the bottom formwork, and a placeholder box body layer is laid; S5, an anti-floating steel bar layer is laid on the placeholder box body layer, and the anti-floating steel bar layer is supported by the placeholder box body layer; S6, a plurality of first connecting piecesare used for connecting anti-floating layer and the bottom formwork; S7, a plurality of top layer steel rib cushion blocks are arranged on the placeholder box body layer, and a top steel bar layer islaid; and S8, a plurality of third connecting pieces are used for connecting the top steel bar layer and the bottom steel bar layer. The anti-floating steel bar layer and the first connecting pieces are used for preventing placeholder box body tilting float after concrete slurry pouring, components in the floor are effectively fixed to guarantee the structure size of the floor to meet design sizerequirements and improve floor quality.

The invention discloses a prefabricated anti-seismic beam and a beam node, and belongs to the technical field of prefabricated buildings. At least one side of two ends of the beam is provided with a protruding outer wing, middle wing and inner wing; the middle wing is inserted into a connection column, and the outer wing and the inner wing abut against two sides of the connection column respectively; compression springs which are perpendicular to the connection column are arranged in the outer wing, the middle wing and the inner wing, buffer boards are connected with two sides of each compression spring, and the buffer boards are fixedly connected with beam main reinforcement through stirrups; the outer wing, the middle wing and the inner wing are filled with graphene foam. Compared with the prior art, the prefabricated anti-seismic beam and the beam node have the advantage that through simple beam end node structure and interior structure modification, the absorption and buffer capability of the beam node of transverse waves caused by earthquakes is greatly improved, so that the anti-seismic property of a building is improved.

The invention discloses a passive low-energy building external thermal insulation system construction process that is different from an existing process described on the graph; the process comprises the following steps: laying warming plates into a thermal insulation wall, and building a reinforcement mat and casting same with the thermal insulation wall into one body. The single layer insulationstructure integrated technology firstly lays the thermal insulation wall, and then deploys the main structure steel bars; verticality control and template adjustment and calibration are fast.

The invention provides a prefabricated concrete dry-type connecting method and a prefabricated concrete wall. The prefabricated concrete dry-type connecting method comprises the steps that a plurality of to-be-assembled concrete wallboards with mounting grooves are placed at preset positions; connecting plates are embedded into the mounting grooves formed in the multiple concrete wallboards, so that the multiple concrete wallboards are connected with one another; and a connecting material is added into mounting gaps formed between the connecting plates and the corresponding mounting grooves. Through the mode, a plurality of concrete wallboards are connected through the connecting plates, the connecting materials are added into the mounting gaps formed after connection so as to further reinforce the connecting integrity of the concrete wallboards; and the connecting plates are matched with the mounting grooves, so that the structure is simple, disassembly and assembly are convenient, high precision is not needed, the defect that in the prior art, a dry-type connecting method is high in manufacturing and installation precision requirement is overcome, and therefore popularization and implementation are convenient.

The invention relates to a connecting method of precast reinforced concrete members, and belongs to the technical field of precast concrete structures. The connecting method is used for connecting a first precast reinforced concrete member and a second precast reinforced concrete member into a whole. The connecting method is characterized in that at least one groove is formed in the first precast reinforced concrete member, and the groove is filled with the retarding mortar; a reinforcement bar is arranged in the groove, and is anchored into concrete at the side wall of the groove; a concrete bulge is arranged on the second precast reinforced concrete member, and the end part of the bulge extends out of the anchored reinforcement bar; the first precast reinforced concrete member and the second precast reinforced concrete member are installed, and all or part of the bulge of the second precast reinforced concrete member extends into the groove; after the retarding mortar is cured, the first precast reinforced concrete member and the second precast reinforced concrete member are connected into a whole.

The invention relates to a structure of a pressure-resistant oil tank and a manufacturing method thereof. According to the main points of the technical scheme, the manufacturing method of the pressure-resistant oil tank comprises the following steps that S1, a connection part is installed, an installation rod is inserted into a sleeve from one end of a matching disc during installation, and a gapis reserved between an installation disc and the matching disc; S2, the connection part is fed into a blow molding mold through a feed part, a blow molding machine blows out a molten parison, the parison is put into the mold, and the blow molding mold is closed; S3, the installation disc makes contact with the parison and presses the parison into a shaft hole, a pressing driving part pushes a shaft sleeve to move along the shaft hole and rotates at the same time, and the shaft sleeve pushes the installation disc to abut against the matching disc; and S4, the blow molding mold is opened, the feed part is taken out from the blow molding mold, then the blow molding mold is closed again, the mold is opened again after the parison is cooled, and the effect that connection strength and stabilitybetween an anti-wave plate and the inner wall of the pressure-resistant oil tank are improved is achieved.

The invention belongs to the field of structural engineering, and particularly relates to a structure for improving ductility of a fabricated composite structure and a construction method. The structure is composed of a prefabricated defect block (1), a locally hollowed reinforced concrete slab (2), a shear connector (3), an FRP profile (4), a post-cast UHPC (5) and a chemical adhesive (6). The prefabricated defect block (1) is arranged in the locally hollowed reinforced concrete slab (2) and is connected with the FRP section bar (4) through the shear connecting piece (3) and the chemical adhesive (6). By means of the prefabricated defect blocks (1) and the post-cast UHPC (5), the bearing capacity and the overall rigidity of the structure are improved, meanwhile, the assembly type structure is connected more tightly in the pressing process, and ductility is remarkably enhanced. The locally hollowed reinforced concrete slab (2) can be used as a template of the post-cast UHPC (5), so that the cost is saved, the construction difficulty is reduced, and the technicality and the operability are high.

The invention relates to a connection method of prefabricated reinforced concrete components and belongs to the technical field of a prefabricated reinforced concrete structure. The connection method includes that a first prefabricated reinforced concrete component and a second prefabricated concrete component are integrally connected. The connection method is characterized in that at least one hole is formed in the first prefabricated reinforced concrete component, rebar is arranged in the holes, and the rebar is anchored in concrete of side walls of the holes; anchor-connected rebar extends out from the second prefabricated reinforced concrete component; the first prefabricated reinforced concrete component is mounted, the concrete or grouting materials are filled in the holes, the second prefabricated reinforced concrete component is mounted, and anchor-connected rebar of the second prefabricated reinforced concrete component is extended into the holes.

The invention relates to a prefabricated component and belongs to the technical field of prefabricated concrete structures. A hole is formed in the prefabricated component. The prefabricated component is characterized in that a lining is arranged inside the hole; steel bars are arranged inside the hole and are anchored in the side wall concrete of the hole. Through the prefabricated component, the stress performance of the prefabricated concrete structures can be improved.

The invention relates to a prefabricated reinforced concrete component connecting method, and belongs to the technical field of prefabricated concrete structures. The method includes the step of integrating a first prefabricated reinforced concrete component and a second prefabricated reinforced concrete component, and is characterized in that at least one hole is formed in the first prefabricated reinforced concrete component, filled with retarded adhesive mortar and internally provided with reinforcing steel bars, the reinforcing steel bars are anchored in concrete of the side walls of the holes, concrete protrusions are arranged on the second prefabricated reinforced concrete component, the first prefabricated reinforced concrete component and the second prefabricated reinforced concrete component are installed, the protrusions of the second prefabricated reinforced concrete component completely or partly extend into the holes, and the first prefabricated reinforced concrete component and the second prefabricated reinforced concrete component are integrated after retarded adhesive mortar is cured.

The invention relates to a connecting method of a prefabricated concrete member and belongs to the technical field of prefabricated concrete structures. Through the connecting method, a first prefabricated concrete member body and a second prefabricated concrete member body are connected into a whole. The connecting method is characterized in that the first prefabricated concrete member body is provided with at least one non-through hole; steel bars are arranged in the holes; the steel bars are anchored in concrete of the bottoms of the holes; the second prefabricated concrete member body is provided with concrete protrusions; the ends of the protrusions stretch out to be connected with the steel bars in an anchored mode; the first prefabricated concrete member body and the second prefabricated concrete member body are installed; the protrusions of the second prefabricated concrete member body completely or partially stretch into the holes; and the space between the first prefabricated concrete member body and the second prefabricated concrete member body and the holes are filled with concrete or a grouting material

The invention discloses an underground diaphragm wall I-shaped steel joint water stop control structure and a construction method thereof, and relates to the field of building construction. The underground diaphragm wall I-shaped steel joint water stop control structure comprises an underground diaphragm wall groove section, an I-shaped steel joint, a steel reinforcement cage, concrete, a port locking pipe and back pressing broken stones; the cross section of the I-shaped steel joint faces upwards, and the I-shaped steel joint is vertically arranged in the underground diaphragm wall groove section; the steel reinforcement cage is welded to one side face of a web of the I-shaped steel joint; the concrete is poured to the steel reinforcement cage and poured into the underground diaphragm wall groove section; the cross section of the port locking pipe faces upwards, and the port locking pipe is vertically and closely attached to the other side face of the web of the I-shaped steel joint;the other side of the port locking pipe is filled with the back pressing broken stones; and a pair of slurry stop plates are symmetrically welded to the outer side of a flange plate of the I-shaped steel joint, and slurry stop pressing strips are welded to the outer sides of the inner ends of the slurry stop plates. According to the underground diaphragm wall I-shaped steel joint water stop control structure and the construction method thereof, the problems that in an existing underground diaphragm wall I-shaped steel joint construction water stop method, round flowing of the concrete is difficult to control, the water stop quality is difficult to control, a large amount of manpower and construction period are consumed, and the construction efficiency is low are solved.

The invention relates to a construction method for slope ecological protection. The construction method comprises the steps that 1, sundries in an adjacent drainage side ditch are removed, and materials and devices needed by construction are prepared; 2, 1-2 rows of stone-picking tenons are arranged on the free face of the slope face of a slope; 3, a weight filling body, a damping buffer layer and an anti-collision pile body are sequentially arranged on the upper surface of a supporting and blocking bottom plate; 4, a slope soil body is excavated, and a lattice beam arranging groove is excavated in the slope soil body; and 5, a lattice beam cap plate is arranged on the upper surface of a slope face lattice beam, and the lattice beam cap plate and the slope face lattice beam are firmly connected through cap plate fastening bolts. The construction method has the beneficial effects that the impact force in the falling process of rolling stones is further reduced; the stability of the supporting and blocking bottom plate and a supporting and blocking outer column and the connection integrity of a vegetation mesh bag and the slope soil body are effectively improved; the connection strength between the slope face lattice beams can be improved; and the difficulty of moving of a turf position control body and positioning of greening turf and the difficulty of filling of a mesh bag filling body are effectively reduced.

The invention discloses a lightweight concrete block for environment-friendly construction and a preparation method of the lightweight concrete block. The invention belongs to the technical field of buildings. According to the invention, an innovative mode of throwing the spontaneous gas inner vibrating ball can be realized, based on the magnetic repulsion effect, the magnetic particles are autonomously and uniformly distributed in the slurry, then, the gas generation action is triggered under the heating action, the built-in gas-forming powder begins to be heated and decomposed to release gas, the natural gas is released into the slurry along a gas-forming outer hopper on the natural gas-forming inner vibrating ball, fine and uniform air holes are formed, the concrete building block has aporous structure, the traditional gas generating material is replaced, meanwhile, when the spontaneous gas inner vibrating ball releases gas, high frequency vibration is formed in the slurry so thatthe fluidity and uniformity of the slurry are improved, thus indirectly improving the strength of the block. According to the self-aerated concrete block, the self-aerated inner vibration ball is arranged in the slurry, high-frequency vibration is formed in the slurry, the fluidity and uniformity of the slurry are improved, the strength of the block is indirectly improved, the self-aerated inner vibration ball and the block can form a tight whole, the strength of the block is further improved, a large pore channel is reinforced, and a block forming process is greatly improved.