76results about How to "Less welding work" patented technology

The invention discloses a deep-foundation-pit pile-anchor supporting system with anchor heads arranged on pile bodies and an implementing method of the system. The supporting system comprises retaining piles, anchor rods, saddle-shaped cushion blocks, anchor devices, PVC pipes, wedges and locking beams; the PVC pipes are arranged inside the retaining piles in advance; inner ends of the anchor rods penetrate through the PVC pipes and are inserted in the foundation pit wall, and outer ends of the anchor rods are fixedly connected with the anchor devices; and included angles being 15-25 degrees are formed between axes of the anchor devices and the horizontal plane and are kept consistent with inclination angles of the anchor rods. Waist beams in a traditional pile-anchor system are canceled, so that the prestress loss caused by deformation of the waist beams is avoided. The force of the anchor rods is directly transferred to the retaining piles, the anchor rods and the retaining piles can be better integrally and synergistically stressed, and a supporting structure is better in integrity, safe and reliable. A lot of connecting batten plates and welding rods are canceled, so that profile steel materials and the electricity consumption are greatly saved. Heavy and dangerous waist beam mounting work is avoided, procedures are simplified, and the construction period is shortened.

The invention provides a novel prefabricated type steel-concrete composite beam bridge upper structure comprising main steel beams, transverse connecting steel beams, metal connecting pieces and prefabricated reinforced concrete bridge deck slabs. The main steel beams are arranged according the shape of a bridge. The webs of the adjacent main steel beams are connected through the transverse connecting steel beams. The upper flanges of the main steel beams are provided with the metal connecting pieces. The prefabricated reinforced concrete bridge deck slabs are laid on the upper flanges of the main steel beams and provided with preformed holes used for grouting of grouting materials after the bridge deck slabs are well installed. The metal connecting pieces are located in the preformed holes. The invention further provides a manufacturing technology of the novel prefabricated type steel-concrete composite beam bridge upper structure. By the adoption of the novel prefabricated type steel-concrete composite beam bridge upper structure and the manufacturing technology of the novel prefabricated type steel-concrete composite beam bridge upper structure, damaged medium and small span concrete beam bridges can be rapidly replaced, the structure safety is good, the construction period is short, the cost is low, and the durability is good.

The invention relates to a lower flange anti-pulling composite box girder with corrugated steel webs and a construction method of the composite box girder, and belongs to the technical field of bridge structures. The composite box girder comprises an upper flange concrete slab, a lower flange concrete slab, the corrugated steel webs, upper flange steel plates, lower flange steel plates and connectors, the corrugated steel webs are connected with the upper flange steel plates and the lower flange steel plates, the lower flange concrete slab is integrated with the lower flange steel plates through the connectors welded on the lower portions of the lower flange steel plates, and the upper flange concrete slab is integrated with the upper flange steel plates through the stud connectors welded on the upper portions of the upper flange steel plates. The composite box girder is characterized in that the connectors on the lower portions of the lower flange steel plates are T-shaped connectors comprising T-shaped connector webs and T-shaped connector top plates. Without increasing steel dosage, the composite box girder solves the problems that reinforcing meshes in a traditional corrugated steel web lower flange concrete slab with PBL connectors, particularly, transverse reinforcements are difficultly constructed, and construction quality is difficultly ensured.

The utility model discloses an ultrasonic sensor device, which comprises a hollow shell, a connecting tube part connected with the hollow shell, five pins, a sensor and a circuit board, wherein one end of each pin is positioned at a first opening of the hollow shell, the other ends of two pins are positioned at a second opening of the hollow shell, and the other end of the other three pins are extended into the connecting tube part and positioned at a third opening of the connecting tube part; the sensor is provided with an opening, and the side wall of the sensor is provided with a ground wire hole; the sensor is fixed at the second opening of the hollow shell, so that the other end of one of the pins extended to the second opening extends into the opening and is electrically connected with a piezoelectric patch, and the other end of the other pin extended to the second opening is inserted into the ground wire hole; and the circuit board is arranged on the first opening of the hollow shell and electrically connected with one end of each pin.

The invention provides an off-line assembling and quick installing method for pipelines of a confined space, and aims at reducing the confined space pipeline installing and welding difficulty, changing a conventional technological procedure, shortening the construction period and improving the production efficiency. The method is characterized by comprising the steps that 1, the pipeline installing positions, varieties, number and areas are determined according to a pipeline installing drawing; 2, the pipelines in the confined space are manufactured into a frame type pipe network according to relevant data in a manufacturing field; 3, the frame type pipe network is installed on corresponding parts by being divided into a plurality of portions or integrally installed on the corresponding parts before a structure or a platform or equipment is hoisted; 4, the equipment with the frame type pipe network is installed in position; and 5, the tail-end pipeline of the frame type pipe network is connected with a medium pipeline. According to the new technology, the construction procedure that the pipelines are prefabricated and assembled in advance and then assembled on the equipment in an off-line mode to be installed together with the equipment is adopted, therefore, the construction time in the confined space is correspondingly shortened, and the quality and the installing precision are improved.

The invention discloses a sea bond structure for FPSO superstructure total segment during lightering. The sea bond structure comprises a lighter, a superstructure total section, a plurality of wall enclosing sea binding members, a plurality of longitudinal sea binding members, a plurality of transverse sea binding members and two outer wall sea binding members. The superstructure total section comprises an enclosing wall, an inner wall and an outer wall, wherein the enclosing wall comprises a larboard enclosing wall, a starboard enclosing wall, a bow enclosing wall and a stern enclosing wall;the inner wall comprises a first to a thirteenth longitudinal inner walls and a first to a ninth transverse inner walls; and one surface of the outer wall is provided with outer wall vertical stiffeners at intervals. The superstructure total section is hoisted on the deck of the lighter in a manner that the starboard enclosing wall is towards the bow of the lighter, and the stern enclosing wall istowards the starboard of the lighter, and a sixth transverse inner wall is superposed with the central line of the hull of the lighter. The enclosing sea binding members, the longitudinal sea bindingmembers, the transverse sea binding members and the outer wall sea binding members are of channel steel with the length equal to 500 mm. The sea bond structure has the advantages that materials are saved, the manpower, time and cost can be reduced and requirements on transportation safety can be met.

The present invention provides a discharge tube connector which suppresses the occurrence of a damage of a discharge tube at the time of installation and can be easily installed. An end electrode (10a) of the discharge tube (10) and a board electrode on a circuit board can be electrically connected with each other through a conductive connection portion (8) without using lead wires, so a damage such as a crack and the like, of a light-emitting portion (10b) of the discharge tube (10) can be avoided. When a holding portion (6a) is made of a rubber-like elastic material, the conductive connection portion (8) has rubber-like elasticity, so the conductive connection portion (8) can be pressed between the end electrode (10a) and the board electrode on the circuit board to conductively connect the end electrode (10a) with the board electrode. Therefore, the soldering operation can be omitted. Thus, installation does not take time, so a manufacturing cost can be reduced.

The invention provides a cylindrical reinforcing steel bar connecting method and connecting structure in a reverse building method, and relates to the technical field of site manufacturing of building materials or building components. The problems that an existing cylindrical inserting bar is multiple in connecting welding spot, the plasticity of steel bars is lowered, the brittleness of the steel bars is enhanced, welding workloads are large, and the consumption of steel is large are solved. The cylindrical reinforcing steel bar connecting method comprises the steps that first, cylindrical inserting bars are reserved in a cross beam in the underground mth layer of space; second, connecting steel bars are machined; third, the top ends of the connecting steel bars are fixedly connected with the cylindrical inserting bars in the underground mth layer of space, and the bottom ends of the connecting steel bars penetrate through a cross beam in the underground (m+1)th layer of space to enter the inside space; fourth, the second step and the third step are repeatedly executed to form cylindrical steel bars in the underground (m+1) layer of space, in this way, circulation is conducted to form cylindrical steel bars in the underground (m+n)th layer of space, and the m and the n are integers larger than or equal to one. The connecting structure comprises a plurality of connecting steel bars, the top ends of the connecting steel bars are fixedly connected with the cylindrical inserting bars in the cross beam in the underground mth layer of space, the bottom ends of the connecting steel bars penetrate through the cross beam in the underground (m+1)th layer of space to enter the inside space in the underground (m+1)th layer.

The invention relates to a steel-concrete partially-prefabricated composite beam structure using layered perforated plate connecting pieces. The steel-concrete partially-prefabricated composite beam structure using the layered perforated plate connecting pieces comprises steel main beams, transverse connecting steel plates, perforated plate connecting pieces, prefabricated portion slabs and cast-in-situ portion slabs, wherein the perforated plate connecting pieces are arranged on upper flanges of the steel main beams, an upper row of openings and a lower row of openings are formed in the perforated plate connecting pieces, the transverse connecting steel plates are connected between webs of adjacent steel main beams, the prefabricated portion slabs are located on the upper flanges of the steel main beams, the perforated plate connecting pieces are exposed out of the prefabricated portion slabs, the lower row of openings are located in the prefabricated portion slab, the upper row of openings are located above the prefabricated portion slabs, the cast-in-situ portion slabs are located on the prefabricated portion slabs, and the upper row of openings are located in the cast-in-situ portion slabs. The invention further provides a manufacturing process of a steel-concrete partially-prefabricated composite beam structure using layered perforated plate connecting pieces. The steel-concrete partially-prefabricated composite beam structure using the layered perforated plate connecting pieces and the manufacturing process have the advantages that the replacement time of a bridge superstructure can be greatly reduced, the construction period is shortened and the urban traffic pressure is greatly relieved; and the mass of the bridge superstructure is reduced.

The invention discloses a reinforced steel frame for buildings. The reinforced steel frame comprises a plurality of columns, a plurality of H-shaped main beams, connectors, connecting sleeves and high-strength bolts; the columns are connected with the main beams through the connectors to form a steel frame body; each connector comprises a main connecting body and a lateral connecting plate, wherein each main connecting body is provided with a through hole, each column penetrates through the corresponding through hole, and each H-shaped lateral connecting plate is arranged on the lateral extending part of the corresponding main connector; the two opposite sides of each H-shaped connecting sleeve are provided with a first opening and a second opening; the end, away from the corresponding main connecting body, of each lateral connecting plate penetrates into the corresponding connecting sleeve through the corresponding first opening and is connected with the connecting sleeve through thecorresponding high-strength bolt. The main beams penetrate into the connecting sleeves through the second openings and are connected with the connecting sleeves through the corresponding high-strengthbolts. The reinforced steel frame for buildings is firm in structural connection and detachable for application on a transition site.

A novel assembly type combined joint mainly comprises a buckling piece, a steel beam, a steel column, high-strength bolts, an embedded thin-wall steel plate, embedded parts and a butt weld. Firstly, the steel beam and the steel column are connected through the buckling piece and the high-strength bolts, the rotation capacity of the combined joint is improved, thus, the pressure arch effect can be better formed though a structure under the action of impact loads, the catenary action can be achieved better, and the shock resistance and the progressive collapse of the structure are improved. Secondly, the steel beam and the prefabricated concrete slab are connected through shearing bolts embedded in the midspan of the prefabricated slab, and the shearing resistance of the joint is improved. Thirdly, the embedded parts embedded in the two ends of the slab can be connected through the butt weld, the two adjacent slabs are connected so that the hogging moment of a support part of the structure can be resisted, and the integrity of the structure is improved. According to the assembly type combined joint, industrialized production is achieved, on-site fast assembly is achieved, the effect that concrete is poured on site is avoided, the construction efficiency is improved, and the environment pollution is reduced.

The invention discloses a granulating chamber of a granulating device. The granulating chamber comprises a water-cooling top plate, an upper cone, an inner cone, a middle ring section and a lower cone, the upper cone is in an annular frustum shape, the inner cone is conical, the upper cone and the inner cone are coaxially arranged at intervals up and down, the lower cone surrounds the outer side of the inner cone, and a discharging opening for discharging granulated slag is connected between the lower cone and the inner cone. The middle ring section is arranged between the lower cone and the upper cone, an annular space for slag granulating is formed among the upper cone, the inner cone, the lower cone and the middle ring section, the water-cooling top plate is in closed connection with the top end of the upper cone, an opening for slag to enter the granulating chamber is formed in the center of the water-cooling top plate, and a granulating disc extends upwards from the top of the inner cone. The top end of the granulating disc is provided with a disc surface used for bearing the slag, the granulating disc is driven by a driving mechanism to rotate, and the middle ring section is provided with a first blower nozzle used for feeding first cooling air into the granulating chamber. According to the granulating chamber of the granulating device, the slag adhesion phenomenon of the upper cone manufactured by welding during dry granulating can be avoided.

The invention discloses a non-welding connector steel-concrete composite girder and a construction method thereof. The steel-concrete composite girder comprises multiple bridge segments, and each bridge segment comprises a steel girder structure, a steel mesh mechanism and a UHPC bridge deck arranged on the steel girder structure, wherein the steel girder structure comprises a base plate, a top plate and a web; the steel mesh mechanisms are arranged on the upper sides and the lower sides of the steel girder top plates and connected through vertical reinforcements penetrating through the steelgirder top plates, and the steel girder top plates, the steel mesh mechanisms and the vertical reinforcements are all wrapped by the UHPC bridge decks. The construction method for the construction process of each bridge segment comprises the following steps of 1, steel girder structure installation; 2, steel mesh mechanism installation; 3, UHPC bridge deck formation; 4, all construction process performing by repeating the steps from first to third multiple times. Accordingly, by means of the vertical reinforcements, shearing force between the bridge decks and the steel girder top plates is transmitted, people do not need to weld shearing force connectors to the top plates, construction is simplified, and environmental protection is facilitated.

The invention discloses a mounting structure for roof trusses and an arc-shaped multilayer berm and a construction method of the berm. The berm stretches across the plurality of roof trusses and is suspended on lower strings of the roof trusses, a berm unit is formed between every two adjacent roof trusses, the whole berm is formed by connecting the plurality of berm units in series, each berm unit comprises four hanging rods, the lower ends of every four hanging rods are connected through two walkway longitudinal beams and two walkway cross beams to form a parallelogram frame, and walkway plates are arranged inside the parallelogram frames. The construction method of the berm comprises the steps that the whole arc-shaped berm is divided into a plurality of hoist units and spare part unitsaccording to the distance between every two adjacent roof trusses, each spare part unit is located between the two corresponding hoist units, and then the steps of prefabricating semi-finished products in a factory, splicing the hoist units outside a span, hoisting the hoist units outside the span, and splicing the spare part units inside the span are adopted to complete the construction of the arc-shaped multi-layer berm. According to the construction method, the working efficiency is improved, and the hoisted hoist units are used as an operating platform, so that the construction cost is saved.

The invention discloses a hanging ladder type scaffold for installing a water-cooled wall spiral section and its erection method. The hanging ladder type scaffold comprises a plurality of bearing brackets and an annular channel; a climbing ladder is arranged correspondingly below each force bearing bracket; the erection method thereof includes steps of confirming overall length of the climbing ladders according to the height of the water-cooled wall spiral section; hanging the lower part along the upper part of the climbing ladders through a climbing ladder hook; hanging the climbing ladder and erecting a scaffold board and a protective railing along with the mounting of a water-cooled wall; carrying out construction by operators at the construction position nearby through the annular channel. Compared with the conventional erection methods, the method greatly decreases the cutting, polishing or welding work of a rooting point, and reduces the pipe injury by cutting and other quality risks while reducing the long-time overhead safety operation risk caused by erecting of an all-around scaffold; through replacing the conventional all-around scaffold by the hanging ladder type scaffold, the amount of turnover materials in use is greatly reduced, and the labor investment in erection and dismounting is reduced; besides, the economic benefit is significant.