36results about How to "Improved seismic safety" patented technology

The invention provides an exposed inverted steel bar grouting sleeve prefabricated concrete column, and a construction method thereof. One end of the exposed inverted steel bar grouting sleeve prefabricated concrete column is provided with an assembling tenon, the other end is exposed for a certain length, and the end part of the other end is provided with a steel bar provided with threads; the cross section of the assembling tenon is smaller than that of the column; the size of the assembling tenon is designed to match an inverted single hole semi-grouting steel bar sleeve. The construction method comprises following steps: prefabricated concrete column manufacturing, inverted steel bar grouting sleeve installation, installation temporary diagonal bracing, grouting, steel bar sleeve enclosing, and the like. The material of the inverted single hole semi-grouting steel bar sleeve is more convent for processing, purchasing, and storing, and is small in occupied space area, so that prefabricated concrete externally hung wallboard semi-embedded semi-exposed requirements are satisfied, wallboard and main structure deformation adaptation requirements can be satisfied, damage of members under earthquake action is avoided, earthquake proof safety performance is improved, and a problem in the prior art that inner wall surface decoration occupied space is too large because of protrudingof wallboard supports out from the inner wall surface is solved.

The invention discloses an aerated concrete block masonry composite wall reinforced with embedded reinforcements and borehole core columns, which belongs to the field of masonry structure and is mainly applied to the building structure engineering. The aerated concrete block masonry composite wall comprises block masonry composed of aerated concrete blocks and dedicated mortar, wall core columns vertically arranged in the block masonry and embedded reinforcements horizontally arranged in the block masonry; horizontal steel bars are generally arranged in block hollow grooves arranged along the length direction of a wall body, and the horizontal steel bars and mortar filled in horizontal mortar joints during the wall building form the embedded reinforcements; vertically through holes are drilled on the block masonry, and core column steel bars are vertically arranged in the holes; and the core column steel bars and core column concrete made of concrete poured after the wall building form wall core columns. The aerated concrete block masonry composite wall disclosed by the invention has relatively good popularization and application prospect in the load-bearing walls of multi-layer masonry structures in seismic areas and even non-load-bearing walls taking aerated concrete block masonries as filler walls in various structure systems.

The invention provides a prefabricated pieced two-way slab construction method. The method comprises the following steps: (1) prefabricated slabs are laid; (2) at the pieced places of the prefabricated slabs, soft rubber plates are supported and laid; (3) a reinforcing steel frame is laid on the soft rubber plates; (4) concrete is cast at the pieced places of the prefabricated slabs; (5) maintenance is carried out; (6) the supports are removed; and (7) the soft rubber plates are removed and the prefabricated pieced two-way slabs are obtained. Thus, through the above steps, a prefabricated pieced slab which is formed by piecing the prefabricated slabs and has good two-way stiffness can be obtained, the lower part does not need to adopt a high-energy consumption and high-cost template material such as a bamboo template or a steel template, the cost is reduced, and in addition, according to the prefabricated pieced two-way slab obtained by adopting the above method, as the reinforcing steel frame and cast-in-situ concrete connection are arranged at the pieced places of the prefabricated slabs, a situation in which the middle part is broken does not happen under effects of earthquake disasters, and the safety performance of the building is improved.

The invention relates to a powerful confined concrete core wall with obvious columns and hidden beams, belongs to the field of civil engineering, and is mainly used for constructional engineering. The powerful confined concrete core wall with the obvious columns and the hidden beams comprises a concrete wall body, concrete border columns and the hidden beams in the concrete wall body. Horizontally distributed reinforcing steel bars and vertically distributed reinforcing steel bars are configured in the concrete wall body, and the concrete border columns are arranged at concrete wall body intersection positions on corner portions of the core wall and are obvious columns protruding out of a wall surface. The hidden beams arranged at height positions of every storey are provided with longitudinal bars and hooping bars and extend along horizontal length direction of the wall body, and two ends of the hidden beams are connected with the concrete border columns to form a spatial confined framework. Steel columns are arranged in the concrete border columns and wall body opening edge components, steel beams are arranged in the hidden beams, and the steel beams are rigidly connected with the steel columns to form a steel frame in the concrete wall. The powerful confined concrete core wall with the obvious columns and the hidden beams has good anti-seismic property and can be popularized in high-rise concrete structure buildings.

The invention discloses a carbon fiber plate anchor using a corrugated splint and a soft backing plate, comprising an upper splint and a lower splint for clamping a carbon fiber plate, the middle of the upper splint and the lower splint is a carbon fiber plate, the upper splint The side of the plywood in contact with the carbon fiber plate is designed as a wave surface, and a groove is drilled on the side of the lower plywood in contact with the carbon fiber plate, and a soft backing plate is filled in the groove, and the upper plywood and the lower plywood are Corresponding bolt holes are opened respectively, and bolts for clamping the upper splint and the lower splint are inserted into the bolt holes. The invention has high working reliability, simple manufacturing process, low cost, good economy, simple operation and good applicability; it has a wide range of applications and can be used not only as a clamp and anchor for composite material sheets, but also as a composite material sheet It can be widely used in the reinforcement and reinforcement of bridge structures and large-span space structures, and can also be used for the overall reinforcement of prefabricated floors and brick walls to improve seismic safety.

The invention discloses a reinforcing steel bar regional scattered buckling-restrained brace and a construction method thereof. The reinforcing steel bar regional scattered buckling-restrained brace comprises a core stress unit, an external restraining unit and isolation layer units, wherein the core stress unit comprises a plurality of reinforcing steel bars penetrating through the external restraining unit and two connector units; the isolation layer units which are connected with the external restraining unit into a whole body are respectively arranged between each reinforcing steel bar and the external restraining unit; each reinforcing steel bar is not bonded with the corresponding isolation layer unit, and the part, extending out of each side of the external restraining unit, of the reinforcing steel bar is connected with one connector unit into a whole by virtue of an energy consumption reinforcing body. The construction method comprises the steps of firstly producing the external restraining unit, and then inserting the reinforcing steel bars into the isolation layer units; and finally installing the energy consumption reinforcing body and the connector units. By adopting the reinforcing steel bar regional scattered buckling-restrained brace, when an earthquake happens, the inertia force acting on a supported structure is remarkably reduced, the displacement response and acceleration response of the supported structure can be alleviated, and the damage degree of the supported structure is reduced.

The invention discloses a fabricated shear wall structure connection system, a design method and vertical seam connection structure of the fabricated shear wall structure connection system. The fabricated shear wall structure connection system comprises precast shear wall units, horizontal seam connection joints and vertical seam connection structures, and the precast shear wall units are assembled into a complete shear wall structure system through the horizontal seam connection joints and the vertical seam connection structures; and a prefabricated concrete structure building of the fabricated shear wall structure connection system can achieve anti-seismic performance of prefabricated buildings or even surpass cast-in-place concrete structure buildings in the prior art. In addition, theinvention further discloses the design method for the fabricated shear wall structure connection system and the vertical seam connection structure for the fabricated shear wall structure connection system.

The invention relates to the technical field of an uninterruptible power supply (UPS) part, and discloses a UPS for an oil pumping machine for an oil field. The UPS is placed on an upper surface of apower supply placement platform, a cooling sleeve ring sleeves the periphery of the UPS, support rods are longitudinally arranged at four corners of the upper surface of the power supply placement platform, support top plates are horizontally arranged at top ends of the support rods in an overhead way, an air blowing motor is horizontally arranged at a central position of an upper surface of eachsupport top plate by a truncated cone-shaped protruding support seat, a rainproof umbrella cover is arranged at an upper part of the air blowing motor in an overhead way, and an elastic support pieceis further embedded between contact surfaces of an upper seat body and a lower seat body. The UPS is cooled by a mode employing a sheath to be connected with an aluminum cooling member, the UPS is simple in manufacturing process, is easier to install and is higher in cooling efficiency, and heat can be rapidly and efficiently taken away by matching with an air-cooling air blowing fan structure atan upper part; and a support base structure of a dual-layer and embedded flexible PVC pressure-bearing post is employed, and shock reduction and buffer can be effectively achieved.

The invention discloses a construction method for a high-ductility heat-insulating masonry wall. The method comprises the following steps: according to a design size of the cross section of the masonry wall, smearing a layer of high-performance masonry mortar on a position where the masonry wall is needed; paving building blocks on the high-performance masonry mortar, and smearing the high-performance masonry mortar, according to a design height of the masonry wall, completing the masonry of the wall, and curing for 7 days so that the wall reaches the initial strength; smearing a high-performance cement-based material on the surface of the completed masonry wall, and laying a fiber weaving net on the high-performance cement-based material, and smearing the high-performance cement-based material on the fiber weaving net, wetting and curing for 28 days until reaching an age of the high-performance cement-based material; and smearing polymer adhesive mortar on the high-performance cement-based material at one side, contacting with an outside natural environment, of the masonry wall, and laying a heat-insulating board on the polymer adhesive mortar, finally smearing decoration mortar on the heat-insulating board. The method is capable of effectively improving the ductility of the newly constructed masonry wall, reducing a risk that the masonry structure is seriously damaged,even collapsed, in an earthquake, effectively improving the heat-insulating performance of the newly constructed masonry wall, and reducing the construction energy consumption of the masonry wall.

The invention discloses a large-span anti-overturning steel truss specially used for long-distance low-energy heating networks, which includes two groups of bored cast-in-place piles located below the ground, and each group of bored cast-in-place piles supports a support on the ground through a cap. Two upper chords located on the upper floor and lower chords respectively corresponding to the lower layer of the two upper chords are installed between the two groups of brackets. The brackets include vertically arranged inner longitudinal struts and outer longitudinal struts. The outer longitudinal struts are connected by several supporting beams. Both ends of the upper chord are provided with upper chord pickouts longer than the lower chord, and the upper chord pickouts at both ends of the upper chord are inserted into the brackets on both sides. On the inner longitudinal support rod, and fixed by the limit block on the top of the bracket; the anti-overturning ability of the present invention is greatly improved, and the lateral force and lateral overturning moment that can be endured are greatly increased.

The invention discloses a construction method of a connection plate mounting connector of a single-layer partition board. The construction method comprises the steps that A, a partition wall board A is hoisted in place, the upper end of the partition wall board A is fixed temporarily through construction measures, and the lower end of the partition wall board A is arranged on a mounting joint; B,a connector is mounted at the upper end of the partition wall board A, a web of the connector is arranged on the top end face of the partition wall board A, then the position of the partition wall board A is adjusted, the mounting joint at the lower end of the partition wall board A is fixed after the position of the partition wall board A is fixed, a lower flange plate of the connector is furtherrotated to be attached to the partition wall board, then a fastening screw A is adopted to penetrate through a fastening hole A to fix the lower flange plate, and the mounting of the partition wall board A is completed; C, a partition wall board B is hoisted in place, after the position is adjusted to be precise, an upper flange plate is rotated to be attached to the wall partition board B closely, then a fastening screw B is adopted to penetrate through a fastening hole B to fix the upper flange plate, then the upper end of the partition wall board B is fixed and provided with a connector, and the mounting of the partition wall board B is completed; and D, the temporary fixing measures at the upper end of the partition wall board A are dismounted, and mounting is completed.

The invention discloses a hidden framework energy-saving building block wall body which is mainly used for improving vertical bearing force, anti-seismic safety performance and warm-keeping heat-insulating performance of wall bodies. As a novel wall body, the hidden framework energy-saving building block wall body is composed of concrete hollow building blocks, ring beam hollow building blocks, warm-keeping materials, and a hidden framework. Building block wall ribs are used for dividing the inner portions of the concrete hollow blocks and the inner portions of the ring beam hollow blocks into different hole cavities for respectively placing the warm-keeping materials, embedded reinforcing steel bars and pouring concrete. Pouring concrete frameworks are arranged at the intervals according to the vertical bearing force and the anti-seismic safety demands of the wall body to finally form vertical frameworks and horizontal frameworks. The vertical frameworks and the horizontal frameworks are connected to form the hidden framework which forms the reinforcing type building block wall body together with the warm-keeping materials, wherein the reinforcing type building block wall body is superior in energy-saving performance, vertical bearing force and anti-seismic performance.

The invention discloses a mounting connecting piece for a connecting plate of a single-layer partition board. The mounting connector comprises a partition board A, a partition board B and a connectingpiece, wherein the connecting piece comprises a web plate, lower flange plates and upper flange plates, the lower flange plates and the upper flange plates are correspondingly hinged to the two endsof the web plate, the lower flange plates and the upper flange plates arranged at the same end of the web plate are hinged to same hinges, the lower flange plates and the upper flange plates at the same end can be folded on a plane around the hinges, and the web plate, the lower flange plates and the upper flange plates on the connecting piece can be folded into an H-shaped steel piece through thehinges. The web plate and the two upper flange plates on one side of the web plate are clamped and fixed on the partition plate A through folding. The web plate and the two lower flange plates on theother side of the web plate are clamped and fixed on the partition board B through folding, and the partition board A and the partition board B are connected into a whole through the connecting piece.

The invention relates to a base isolation-tuned mass damper shock isolation and vibration absorption device for a nuclear power plant without earthquake risk. The base isolation-tuned mass damper shock isolation and vibration absorption device is characterized by comprising a base shock isolation base structure and a tuned mass damper structure. The tuned mass damper structure is of a shell structure with a circular cross section, and includes a tuned mass damper main structure and a tuned mass damper substructure. The main structure and the substructure are connected by at least two tuned mass damper support units, and the substructure is located above the main structure. Each of the tuned mass damper support units is composed of support stiffness and support damping, and is sealed by a flexible sealing device. The tuned mass damper main structure is connected with the base shock isolation base structure through at least two base shock isolation support units, and each of the base isolation support units is composed of support stiffness and support damping. The base isolation-tuned mass damper shock isolation and vibration absorption device for the nuclear power plant without earthquake risk is good in seismic robustness and stable in shock absorption effect, and has no special requirements of a site, implementation of the device is simple, and the anti-seismic safety of the structure of the nuclear power plant is greatly improved.

The invention provides an anti-seismic stone Nasa for Qiang type building roof decoration. The iconic symbol 'Nasa' of Qiang buildings is combined with the modern building structure theory, an overallstructure of the rebar-supporting Nasa is used for achieving the anti-seismic effect, and then materials such as GRC gypsum concrete and light stones are used for building and manufacturing the Nasa.The Nasa meets the modern building anti-seismic safety requirement, traditional Qiang building culture and regional characteristics can be well inherited, and recognition of Qiang cultural identity of people is enhanced.

The invention discloses a foundation vibration isolation and three-dimensional damping structure for a double-layer containment nuclear power station. The foundation vibration isolation and three-dimensional damping structure comprises an inner containment, an outer containment, a reactor core supporting structure, a reactor core structure, a horizontal vibration isolation supporting seat, a vertical vibration isolation supporting seat, a vertical damper, a bidirectional hydraulic cylinder and a damping sliding block, the damping sliding block and the outer containment are in vertical slidingdamping fit, the end of a first piston rod of the bidirectional hydraulic cylinder is connected with the inner containment, a second piston rod of the bidirectional hydraulic cylinder is connected with the damping sliding block, when the first piston rod moves horizontally, the second piston rod drives the damping sliding block to slide in the vertical direction relative to the outer containment.According to the foundation vibration isolation and three-dimensional damping structure for the double-layer containment nuclear power station, through the combined action of the horizontal vibrationisolation supporting seat, the bidirectional hydraulic cylinder, the damping sliding block, the vertical vibration isolation supporting seat and the vertical damper which are arranged, the three-dimensional damping effect is achieved, the special anti-seismic safety requirement of the nuclear power station can be met, and the anti-seismic safety of the nuclear power station structure is remarkablyimproved.

A frame building structure anti-seismic optimization design method considering multiple randomness comprises the steps that sensitivity formulas of structure dynamic reliability to random variable distribution parameters and deterministic variables are derived respectively based on a direct probability integral method, and an efficient and accurate analysis method for dynamic reliability sensitivity is provided; a framework building structure parameter optimization design framework is constructed by taking building structure construction cost as a target function and dynamic reliability as a constraint function, and optimization problem solving is carried out based on a dynamic reliability sensitivity analysis method and a moving asymptote method provided by the invention. Compared with a traditional building structure design scheme, the method has the advantages that near-fault seismic oscillation random excitation possibly suffered by the frame building structure and randomness of parameters of the structure are considered, and the design scheme of the frame building structure considering safety and economical efficiency is provided.