8102 results about "Steel frame" patented technology

A novel building construction is described for exterior building walls. The construction comprises an interior frame formed of a plurality of laterally spaced studs or beams, a layer of rigid insulation adjacent to the exterior side of this steel frame, exterior building cladding adjacent the exterior side of the rigid insulation and a plurality of low conductivity connectors, e.g. insulating plastic connectors or thin metal strips having an insulating plastic foam coating, extending through the layer of rigid insulation and connecting together the exterior cladding and the interior steel studs or beams. Vertical channels are formed adjacent both the inside and outside faces of the insulation layer to remove moisture. This provides the required structural strength with a minimum of thermal conductivity from the warm side to the cold side of the building envelope, while providing exterior drain channels and interior moisture removing channels.

The invention discloses a tunnel construction method in a fault fracture zone, which comprises the following steps: a. adopting the method of combining geophysical prospecting and drilling and combining long-distance and short-distance to ascertain the geological situation in front, and carry out advanced geological prediction; b. adopting advanced Anchor construction, pre-grouting construction of the surrounding walls of small conduits in advance, and advance support construction of grouting pipe shed and steel frame, and advance pre-support; c. Tunnel excavation and support. It provides a theoretical basis for detecting the specific location, range and water inflow of the fault fracture zone; ensures the safety of tunnel construction; on the basis of analyzing the specific location and scope of the fault fracture zone and adopting a reasonable advanced pre-support method, comprehensive and specific According to the geological conditions, choose a reasonable tunnel excavation method. It has strong applicability for the construction of expressway tunnels crossing fault fracture zones; at the same time, it has reference and reference significance for the construction of railway, municipal and water conservancy tunnels (holes) with similar geological conditions.

A light steel framing construction technique for light gauge load bearing wall type buildings uses specialized brackets to suspend poured slab floors. Multiple stories of the building can be erected without waiting for individual concrete slab floors to be poured and set at each story. During construction, a building is protected from torsional warping, such as may be occur under wind loads, by a series of lateral and diagonal bracing structures at each level affixed in a plane perpendicular to the load bearing elements. Multiple concrete floor slabs can be poured sequentially or simultaneously, as desired, during the construction process.

An elevator submerged plant growing bed, a production method thereof and an application method thereof belong to the technical field of ecological environment engineering. By adopting the device, the recovery of submerged vegetation can be carried out in a water area with low-transparence water bodies, big water-level fluctuation and nearly no submerged plant. The device consists of five parts, namely, a bed body, a buoyancy regulation and control system, a fixing system, a depth regulating system, plants and growth matrixes thereof, wherein, the bed body consists of a bamboo joint and a steel frame which are fixed; the buoyancy control comprises a floating ball combination and a buoyancy bamboo joint combination; the fixing system is a pythmic fixing member and a connecting line between the pythmic fixing member and the bed body; the depth regulating system comprises a floating ball adjusting rope and a measuring device; and the plants and the growth matrixes comprise submerged plants, mud placing bamboo joints and bottom mud for plant growth. The device designed in the invention can provide a carrier for the water bodies in which the recovery of the submerged vegetation is hard to carry out under the existing natural conditions, which is favorable for the recovery of the submerged vegetation.

The invention relates to a steel frame precast prestressed beam column joint with a post-earthquake recovering function. The joint comprises a steel frame column, a short beam section, a beam column connection device and an energy consumption device, wherein the steel frame column comprises a steel column, a column reinforced rib and a column reinforced plate; the short beam section comprises a short beam section web, a short beam section flange and a short beam section flange reinforced plate; the beam column connection device comprises a short beam section web reinforced rib, a prestressed cable and a beam end top plate; the energy consumption device comprises two channel steels and a high-strength bolt; and the two short beams are integrally connected with the column in a factory through a tension prestressed cable and two short beam section web reinforced ribs. When the earthquake action achieves a certain degree, the contact surface of the beam and the column is opened; the high-strength bolt is in friction energy dissipation so as to avoid destroying main components, such as beams and columns After the earthquake, the beams can be recovered to the former vertical position under the action of the prestress.

The invention discloses a self-reset beam column friction energy consumption node which comprises an upper flange plate, a lower flange plate, a web and a self-reset angle brace. One end of the upper flange plate, one end of the lower flange plate and one end of the web are all fixedly connected to the side face of a steel frame column to form a connecting short beam. One end of the connecting short beam is connected to the steel frame column, and the other end is connected with a steel frame beam. The joint of the connecting short beam and the steel frame beam can generate left-right displacement when bearing external force. The self-reset angle brace is connected with the steel frame column and the steel frame beam through ear plates at the two ends respectively. Through the sliding friction of a friction base plate at the upper flange plate or the lower flange plate or the web and the self-reset angle brace at the lower flange position of the steel frame beam, earthquake energy is consumed, and the node can automatically restore the initial state after an earthquake. The self-reset beam column friction energy consumption node is simple in structure and convenient to construct and can be widely applied to various steel structure buildings.

The invention discloses a tightening machine and particularly relates to an automatic bolt tightening machine for a wheel brake disc. The automatic bolt tightening machine comprises a main body and an electric control cabinet, wherein the main body is connected with the electric control cabinet and comprises a column steel frame and a horizontal steel frame; a vertical guide rail and a lifting cylinder are arranged on the column steel frame; a tightening device is movably mounted on the vertical guide rail in a clamped manner and fixedly connected with the piston rod of the lifting cylinder; the horizontal steel frame is arranged right below the tightening device and connected with the column steel frame; a horizontal moving cylinder and a horizontal guide rail are arranged on the horizontal steel frame; an automatic rotary workbench is mounted on the horizontal guide rail in a clamped manner and fixedly connected with the piston rod of the horizontal moving cylinder. The automatic bolt tightening machine for the wheel brake disc is convenient to operate, can effectively reduce the labor intensity of operators and ensure the precision and quality of tightening and assembly of bolts for the wheel brake disc.

The invention discloses a bed and chair integrated nursing system with a rotary seat and a urination and defecation processing device. The bed and chair integrated nursing system comprises a bed and chair conversion mechanism and a bed body. The bed body is of a rectangular steel frame structure, and the bed and chair conversion mechanism is placed in the bed body. An opening is arranged on the side face of the bed body, and the bed and chair conversion mechanism moves along a marking line through recognition of a bottom surface paste marking line to achieve butting and separation of a bed and a chair. The bed and chair conversion mechanism can achieve conversion between the bed and the chair and adopts a seat structure capable of rotating 90 degrees so as to enable the bed and the chair to be high in reliability in a butting and separation process. Simultaneously, the urination and defecation processing device is arranged in the bed and chair conversion mechanism, and the problem of urination and defecation processing of a user is solved effectively. The bed and chair integrated nursing system has the advantages of being capable of moving in a narrow space and capable of butting against the bed body to form a bed state, simultaneously having personal hygiene assisting function, effectively solving the problem of urination and defecation self-care of the user and the like, being capable of greatly reducing burden of nursing staff, and simultaneously enlarging activity range and independent living capacity of a person who is cared.

The invention discloses a foundation base model test device capable of bidirectional loading. A force-bearing framework is a rectangular steel frame, a model slot is of a rectangular steel structure, is provided with an upper opening and is formed by welding of a box template, the force-bearing framework is sleeved at the periphery of the model slot, a horizontal actuator counterforce column is vertically erected on the left end part of the model slot, the left end of the horizontal actuator is connected with the horizontal actuator counterforce column, the right end of the horizontal actuator is connected with the top of a pile, the upper end of a vertical actuator is connected with a cross beam at the upper part of the force-bearing framework, the lower end of the vertical actuator is connected with the top of the pile through a vertical dowel steel, a row of drain valves are arranged at the lower part of the left side wall of the model slot, an inlet valve is arranged at the lower part of the right side wall of the model slot, and a water supply pipe of the inlet valve is connected with a constant-pressure water tank. Monitoring is systematic and comprehensive, embedding of monitoring instruments is relatively easy, and automatic and real-time monitoring on multiple physical quantities can be realized. The foundation base model test device disclosed by the invention can be used in conducting model tests like slope foundation, composite foundation and pile foundation.

The invention relates to a structure and a construction method of a cast-in-style welded steel frame composite concrete shear wall. The structure comprises an indoor concrete layer, an outdoor concrete layer and a wire frame insulation sandwich board. The wire frane insulation sandwich board is coated between the indoor concrete layer and the outdoor concrete layer. At least two rectangular and groove-typed cantilever holes are arranged at the top of the sandwich board, and each cantilever hole is provided with a U-shaped cantilever anchor bar which penetrates through the sandwich board and a floor slab to be fixedly connected with the floor slab. The construction method includes site preparation work, binding of load-bearing steel bars of a wall body and edge member steel bars, custom processing of the sandwich boards, installation of the sandwich boards, pavement of template positioning pieces and wall bushings, fixation of water and electric pipes inside the wall body, binding of ordinary blocks on both sides of the wall body steel bars, erecting of the templates, pouring of the concrete, removing of the templates and concrete curing. Since a series of composite wall construction methods are adopted, problems existing in the prior art are solved, and a composite heat preservation technology is improved.

The present invention is a light steel framed metal joist including an adjustable connector fastened to the joist web that allows one to adjust the length and angle of the joist when attaching to floor and wall systems. The adjustment allows one to install end connectors onto the joists prior to installation while retaining flexibility of orientation during construction. The joist functions in both web bearing and bottom chord bearing configurations. A flat plate distributing member allows one to design a floor system without having to coordinate the positioning of the joist with wall studs. Angle or U shaped members can be fastened to the lower portion of the flat plate distribution member to support joists during construction. The invention further provides a seamless fire stopping system with consideration for acoustic dampening.

The invention discloses an excavation supporting method for tunnel construction. In the method, the tunnel is excavated in parts and blocks, arch part primary support and temporary steel frame support are erected to form reticular closed stable support system, and finally a complete tunnel section is formed, the excavation and support of each part are in vertical staggered manner along tunnel and are carried on through parallel advancing construction method. The excavation supporting method has large excavation part section, facilitates the operation of construction machinery, has simple primary-support process, easy operation, reduces the arch jack fabrication, anchor rod mounting and concrete spraying processes for middle partition and temporary inverted arch construction, reduces the construction period and the construction cost.

An algae factorization circulating aquaculture system comprises a culture area and a water treatment area. The water treatment area comprises a micro filter tank, a floatation tank, a dark treatment area, a biological treatment area, an ultraviolet sterilization tank, a regulation tank and artificial wetland. The algae factorization circulating aquaculture system is arranged in a light-transmitting steel frame greenhouse or a brick-concrete structure workshop, the culture area is arranged at the central position of the aquaculture system, the water treatment area is arranged around the culture areas so as to fully utilize plane space of the workshop due to surrounding distribution, the whole workshop is compact in distribution, the system can effectively intercept solid particles in culture water and remove ammonia nitrogen in water, high particulate matter concentration water can be collected in a concentration mode and secondarily used through the artificial wetland, environmental pollution and waste caused by direct emission are effectively reduced, culture scale can be large or small, culture facilities are simple, system investment is low, and the system is suitable for individuals or families to perform aquaculture production and is favorable for being popularized and applied.

The invention discloses an explosion expanded internal anchor prestressed anchor cable for strengthening a weak rock and an anchoring method thereof. The anchor cable comprises a bit expanded anchor cable hole and an anchor cable body with an explosion expanded internal anchor head, wherein the explosion expanded internal anchor head consists of a lantern-shaped steel frame and a grouting body; and the lantern-shaped steel frame comprises lanced steel tubes, wire meshes and detached steel strands which are hierarchically distributed from the interior to the exterior. The anchoring method comprises the following steps of: drilling an anchor cable hole by using a driller, putting explosive at the bottom of the hole for explosion after holing, cleaning the hole and making a spherical cavity formed at the bottom of the drilled hole; simultaneously making an initial sample of the explosion expanded internal anchor head anchor cable by using the steel strands, the steel tubes, the wire meshes, the explosive and the like, inserting the anchor cable, igniting the explosive in the initial sample of the anchor cable, and forming the lantern-shaped internal anchor head steel frame; and finally grouting, and stretching and locking the anchor cable. The invention can obviously improve the bearing capacity of the internal anchor head grouting body and the prestress of the anchor cable, effectively solves the problem of poor anchored force of the anchor cable in the process of strengthening the weak rock, and can shorten the length of the internal anchoring section and widen an effective range of anchoring the rock.

The invention discloses a rock mechanical test loading device under brine corrosion conditions, comprising a container, a ball-end cylindrical indenter, the upper jaw of a fixture, the lower jaw of the fixture and a circulation pump. Glass cement is applied in two pre-reserved slits on a stainless steel frame, an organic glass plate is inserted into the slits, symmetrical screen sandwich grooves are welded on the container, screens are inserted into the symmetrical screen sandwich grooves, a drain hole on the bottom of the container is sealed by a screw plug and a rubber gasket, a ball valve is connected with the container, and the ball valve on the container is connected with a circulating pump through a transparent plastic hose. A rock sample splitting fixture is disposed in the container and consists of the arc-shaped upper jaw and the arc-shaped lower jaw of the fixture, and the upper jaw of the fixture is connected with the ball-end cylindrical indenter. The invention has simple structure and convenient operation, and can simulate the actual operating condition that brine and a flow field cooperatively act on a dissolution cavity in the cavity creating process of gas (oil) storage, thus obtaining more actual and reliable parameters detected by indoor test.

This is an anti-knock node for steel frame beam. It is by substituting traditional steel material on the beam end and web by an metal of strong endergonic ability, and adding X shape low carbon armor plate to the beam end to form an endergonic plasticity node.

The invention relates to the field of tunnel engineering, in particular to a construction process for a large-section soft rock large-deformation tunnel. The adopted construction process comprises the steps that (1) an upper step is constructed; (2) a middle step is constructed; (3) a lower step is constructed; (4) reserve core soil is excavated; (5) an inverted arch is excavated, specifically, every time cycle excavation is conducted for 3 m, primary spraying is conducted immediately after the inverted arch part is excavated; (6) an inner layer steel frame is erected in time, HW200*200 profile steel is adopted, after closing ring formation, an inner layer is made, and concrete is sprayed to the designed thickness; (7) a concrete inner surface is sprayed on the inner layer, and a waterproof board is laid; (8) after tunnel deformation reaches designed reserved deformation, secondary lining is made; and (9) under supporting of advanced grouting small duct, the next cycle of construction is conducted till the tunnel is made through. The construction process meets the requirement of soft rock large deformation, limit intrusion is avoided, meanwhile, stress of a support structure can be reduced, and safety of the support structure is ensured.

A buckling restrained brace includes an elongate, hollow sleeve, an elongate yielding core extending substantially through the length of the sleeve, and a buckling constraining element between the yielding core and the inner surface of the hollow sleeve and spaced apart from at least one surface of the yielding core, leaving a gap therebetween. The buckling constraining element may be spaced apart from and, thus, the gap may exist between two or more surfaces of the yielding core. Additionally, an inner sleeve, or liner, may be positioned between the buckling constraining element and the yielding core, with the liner being spaced apart from at least one surface of the yielding core. The buckling restrained brace is useful in absorbing loads, such as seismically induced loads, that are exerted upon a steel frame.

The invention discloses an integral lifting system and a construction method for arch bridge ribs. The integral lifting system comprises a pair of triangular steel frames, two lifting stations, arch rib brackets and an integral arch rib of an arch bridge, and a barge for conveying the integral arch rib. The triangular steel frames are fixedly rested on bridge piers and symmetrically disposed on two sides of main span of the arch bridge, an arch rib closure section in closure with the integral arch rib is disposed on the inner side of the arch bridge main span and close to the corresponding triangular steel frame, the lifting stations are disposed on the triangular frames respectively, the arch rib brackets are rested on the barge and support the integral arch rib, the lifting stations are connected with the integral arch rib through lifting steel stranded wires, the integral arch rib which is lifted up is in fixed closure with the arch rib closure sections, and accordingly the integral arch bridge is formed. The integral lifting system is adaptable to severe construction environments, and accordingly construction progress is quickened. The invention further provides the construction method for integral lifting of the arch bridge rib.

There is disclosed a powered reciprocating table saw, for sawing large foam panels having embedded steel framing members, comprising a work table for supporting a workpiece on a top side of the work table and having a blade opening disposed through the work table proximate a central portion thereof. A saw motor is supported underneath the work table, the saw motor having a reciprocating output shaft extending from a housing of the motor, and blade clamping means disposed on the output shaft. An elongated saw blade is retained in the blade clamping means of the saw motor and positioned to move reciprocatingly through the blade opening to the top side of the work table for sawing the workpiece. In another aspect a motor mount is disclosed for attaching the saw motor to the work table. In yet another aspect a blade guide supported by the work table is disclosed, which limits sideways and rearward displacement of the saw blade while sawing the workpiece.