11results about How to "Reduce local damage" patented technology

The invention relates to an anti-penetration boxboard assembly type double-layer wall body structure and a construction method, the double-layer wall body structure comprises an outer layer wall body, the outer layer wall body comprises a plane straight steel plate, T-shaped stiffening ribs and prestressed steel strands, the multiple T-shaped stiffening ribs are evenly arranged on the inner side of the plane straight steel plate, webs of the T-shaped stiffening ribs are vertically welded and fixed to the plane straight steel plate, and the prestressed steel strands are arranged on the outer layer wall body; a cavity is formed between every two adjacent T-shaped stiffening ribs, and the prestressed steel strands are symmetrically arranged on the two sides, close to the plane straight steel plate, of webs of the T-shaped stiffening ribs. The inner-layer wall body is a corrugated steel plate and is arranged opposite to the outer-layer wall body, corrugations of the inner-layer wall body extend outwards in the oblique line direction forming a preset angle with the height direction of the outer-layer wall body, wave crests of the corrugated steel plate are tightly attached to flange plates of the T-shaped stiffening ribs, and connecting holes are correspondingly formed in the wave crests of the corrugated steel plate; the anti-penetration structural layers are arranged in the cavities and detachably connected with the adjacent T-shaped stiffening ribs; and the connecting devices are mounted on the flange plates of the T-shaped stiffening ribs and suitable for penetrating through the connecting holes to fix the inner-layer wall body and the outer-layer wall body. The double-layer wall body structure has better anti-penetration capability, and can exert enough safety performance in scenes such as wartime and the like.

The utility model discloses an asymmetric non -middle wall connected arch tunnel support system relates to tunnel support technical field, including connected arch tunnel first -pass hole initial support, connected arch tunnel first -pass hole initial support includes I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, big arch foot steel arch frame connecting steel sheet and stiffened steel plate, through the first -pass hole initial support of setting, first -pass hole initial support adopts I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, connecting steel plate and stiffened steel plate, form high -strength, high rigid support system, effectively disperses the surrounding rock pressure, reduces local damage, and system anchor rod and radial injection grouting small catheter consolidate surrounding rock through injection grouting, further enhances the stability of surrounding rock.

The invention discloses a durable composite steel wire rope material and a preparation method thereof. The preparation method comprises the following steps: step 1, preparing a steel wire; step 2, surface pretreatment; step 3, preparing a corrosion-resistant coating; step 4, adding wear-resistant particles; step 5, curing treatment; step 6, quality detection; the method has the advantages that a special formula and a preparation process are adopted, so that the steel wire rope can effectively resist the influence of factors such as abrasion, fatigue and corrosion in the long-term use process, the service life of the steel wire rope is greatly prolonged, safe operation of equipment and engineering can be ensured, and the service life of the steel wire rope is prolonged. Good toughness can also reduce local damage caused by accidental impact, the reliability of the steel wire rope is improved, the production process is easy to control, the production cost is reduced, the production efficiency is improved, environment-friendly raw materials and processes are adopted, pollution to the environment is reduced, the market competitiveness of products can be improved, and the steel wire rope is worthy of popularization and application. And reliable product guarantee is provided for users.

The invention provides a method for calculating the fire endurance of a concrete filled steel tubular column in a fire disaster, which belongs to the technical field of safety risk assessment, and specifically comprises the following steps of: carrying out numeralization and normalization processing on collected literature data, analyzing an obtained data parameter group by adopting a Spearman correlation coefficient method, determining important parameters according to the correlation level, and calculating the fire endurance of the concrete filled steel tubular column in the fire disaster; according to the determined important parameter data, establishing a fire endurance prediction model, establishing a database, performing single-parameter analysis on the determined important parameters, and fitting a result to correct a calculation formula; the method has the beneficial effects that the calculation formula can more comprehensively reflect the fire resistance of an actual structure, so that the applicability and the accuracy of the formula are improved, the formula not only shows good applicability in different sample data, but also has relatively high calculation precision, and a reliable basis is provided for fire resistance design in actual engineering.

This utility model discloses a wind-resistant structure for the crown of a high-rise building, including a mass block disposed inside the crown and steel cables disposed inside the crown, with the mass block suspended inside the steel cables. The mass block consists of an upper part, a middle part, and a lower part. The upper part consists of block A, block B, and block C. Block A is disposed on top of block B, and block C is disposed at the bottom of block B. An installation mechanism is provided at the connection between the top of block B and blocks A and C. By using a modular design, the mass block is divided into relatively small modules, reducing the requirements for manufacturing equipment, manufacturing difficulty, and cost. Compared with the integral type, the modular mass block has a smaller individual module size and weight, which can be transported using ordinary transportation tools, making it easier to cope with road height and weight restrictions, greatly reducing transportation difficulty and cost. At the installation site, the smaller modules are easier to operate and position.

The utility model relates to bridge pier protection technical field, specifically disclose a bridge pier protection structure, include: bridge pier column, the outside both sides of bridge pier column are equipped with arc plate, the outside of two arc plate is equipped with arc crashproof board, the outer arc surface of two arc crashproof board is all ring array and is opened with crashproof groove, and the crashproof groove is arc -shaped, the utility model discloses the synergistic effect of crashproof mechanism and buffer mechanism forms double protection, promotes the anti -impact ability of bridge pier, effectively protects the bridge pier column from direct impact, reduces the ship structure damage simultaneously, realizes the bidirectional protection of bridge pier and ship.

The utility model discloses a raincoat opening buttonhole device relates to raincoat processing technical field. The raincoat opening buttonhole device, including work table, pressing subassembly and opening eye subassembly, work table is fixedly connected with mounting bracket, and pressing subassembly is located in mounting bracket, and pressing subassembly includes sliding rod, moving block, round hole, pull rod, spring, springback and pressing plate, and the number of sliding rod is two groups and is oppositely arranged, and moving block is slidably installed on the sliding rod, and the round hole is formed in moving block and sliding rod, and opening eye subassembly is located above work table. The utility model can carry out pressing work to raincoat, and it is convenient for subsequent work of opening eye, and the setting of pressing can ensure that the buttonhole part of raincoat is more closely attached, avoids the subsequent use of raincoat, appears moisture and penetrates into clothes through the gap of buttonhole, makes the buttonhole place more closely fixed, is helpful to the stability of raincoat in walking, cycling or other activity process.

The invention discloses an ergonomic magnetic heating garment, which belongs to the technical field of medical care, and is characterized in that a tightness adjusting part is arranged at the opening in the middle of a jacket and is used for adapting to different body types; the coat and the trousers are provided with magnetic heating devices; the magnetic heating device comprises a magnetic control mechanism, an electric heating mechanism and a control mechanism; the electric heating mechanism is arranged on linings of the jacket and the trousers and is connected with the control mechanism; the magnetic control mechanism is arranged on the outer linings of the jacket and the trousers and is connected with the control mechanism; the control mechanism is further connected with an external power supply mechanism used for providing a power source. The magnetic heat treatment method is utilized, the magnetic heat clothes are designed, and magnetic heat intervention with different time lengths and different intensities is performed on damaged tissues, so that the magnetic heat clothes can provide effective mechanical support for local tissues, local injury can be relieved, and the treatment effect can be enhanced.

The utility model discloses a radio and television engineering antenna support, which belongs to the field of radio and television, and comprises a supporting tube, a bottom plate is hinged to the bottom of the supporting tube through a base, a sliding seat capable of sliding along the height direction of the supporting tube is arranged outside the supporting tube, and a connecting frame is fixedly mounted on the outer side surface of the sliding seat. An inclined supporting mechanism capable of buffering and damping is hinged between the connecting frame and the bottom plate, the top of the supporting pipe is sleeved with a supporting rod, a mounting table is fixedly mounted at the position, located above the supporting pipe, of the top of the supporting rod, a mounting cylinder is arranged on the sliding base, and a positioning bolt penetrating through the sliding base is arranged in the mounting cylinder. A handle is arranged at the end, away from the sliding base, of the positioning bolt. The radio and television engineering antenna support can be folded and stored during transportation, so that the occupied space is greatly reduced, and the transportation cost and the damage risk in the transportation process are reduced.

The invention relates to the technical field of magnetic devices, and discloses an assembled network transformer and electronic equipment, and the assembled network transformer comprises a shell which is provided with a containing cavity with an opening in the lower end, and a plurality of first function grooves formed in the surface of the lower end of the shell in a concave manner; the at least one first magnetic ring is configured in the accommodating cavity, a winding coil is wound on the first magnetic ring, and a plurality of lead connectors are led out from the winding coil; the metal terminals are arranged at the lower end of the shell, each metal terminal is correspondingly inserted in each first functional groove, each metal terminal is provided with a wire pressing wrapping lug, and the wire pressing wrapping lugs are bent in the first functional grooves to press the lead connector and are electrically connected with the lead connector; and the fixing glue layer is matched with the first function groove, and the fixing glue layer is filled in the first function groove and wraps the wire pressing wrapping lug and the lead connector. The comprehensive performance of the assembled network transformer is improved.

The invention relates to a spillway concrete side wall repairing method. The spillway concrete side wall repairing method sequentially comprises the following steps that S1, the damaged surface of an original concrete structure is removed; s2, punching holes in the surface of the original concrete structure after the damaged surface is removed to form a plurality of holes for planting the steel bars, and respectively planting a plurality of connecting steel bars into the corresponding holes for planting the steel bars; s3, after the surface of the original concrete structure is cleaned up, the surface of the original concrete structure is coated with an adhesive, and an adhesive layer is formed; s4, arranging a surface layer reinforcing mesh on the surface of the original concrete structure; s5, surface layer concrete is poured on the surface of the original concrete structure, and a concrete surface layer is formed; and S6, surface anti-carbonization treatment is conducted on the concrete surface layer, and an anti-carbonization surface is formed. The strength of the repaired concrete structure can be improved, the service life is prolonged, and the adaptability to freezing and other related severe environments is improved.