12results about How to "Convenient and efficient construction" patented technology

The utility model discloses a kind of concrete roofing air pipe rainproof devices, solve the problem of rain leakage of air pipe through concrete roofing.The device includes air pipe rainproof device, indoor air pipe, outdoor air pipe, air pipe support, concrete roofing air pipe hole, roofing floor, roofing insulation layer, roofing waterproof layer, roofing hole flanging and cement mortar;Air pipe rainproof device is composed of indoor and outdoor connecting air pipe and rain cover, indoor and outdoor connecting air pipe two ends are connected indoor, outdoor air pipe respectively through air pipe flange, and fixed by air pipe support and roofing hole flanging;Rain cover contains hem, skirt, vertical edge and middle support column, can be enclosed rainproof space and cover hole flanging, hole gap is blocked with non-combustible material.The device is adapted to rectangle / circle, heat preservation / cold preservation / non-heat preservation metal air pipe, rainproof effect is remarkable, structure is stable and durable, construction is convenient, can guarantee indoor environment and ventilation system safe operation.

The utility model relates to the technical field of steel structure reinforcing, in particular to a welded reinforcing structure for a steel pipe wrapped outside a net rack, which comprises a newly added outer pipe formed by splicing two semicircular pipes, and the two semicircular pipes are welded and fixed into an integral structure; the newly-added outer pipe is arranged on the periphery of the existing steel pipe in a sleeved mode, a certain gap is reserved between the newly-added outer pipe and the existing steel pipe, and filling materials are poured into the gap. The steel pipe reinforcing device has the advantages that the existing steel pipe is effectively reinforced without damage, and the existing steel roof truss structure is not influenced; the structure is simple and reasonable, the prefabrication degree is high, construction is convenient and efficient, rapid construction can be achieved in the skylight operation period, uninterrupted operation is ensured, and the method is suitable for popularization.

The utility model provides a tunnel cover arch structure, including inside arch support structure, intermediate arch support subassembly, outside arch support structure and be used for the hole mouth pipe subassembly of setting up pipe shed, inside arch support structure erects in the outside of open cut lining structure, outside arch support structure erects in the outside of inside arch support structure, inside arch support structure and outside arch support structure are connected, the hole mouth pipe subassembly is connected in the outer wall of outside arch support structure, the outer wall of inside arch support structure forms has the first placement slot of the intermediate arch support subassembly placement, the inner wall of outside arch support structure forms has the second placement slot of the intermediate arch support subassembly placement, second placement slot and first placement slot one to one correspondence arrangement, the intermediate arch support subassembly places between first placement slot and second placement slot. The present application has the advantages of convenient and efficient construction, steel can be recycled, greatly reduces the loss.

The utility model provides a hybrid beam cable-stayed bridge steel-concrete combined beam section which comprises a bearing plate, a steel-concrete combined section and a steel beam transition section, and the steel-concrete combined section and the steel beam transition section are arranged on the two sides of the bearing plate respectively. The steel-concrete combined section comprises a first bottom plate, a first middle web plate and a first side web plate, the first bottom plate is connected between the first middle web plate and the first side web plate, and the first middle web plate, the first bottom plate and the first side web plate are connected to form a symmetric or asymmetric concave structure; each of the first bottom plate, the first middle web and the first side web comprises a plurality of steel grids and concrete bodies filled in the steel grids; the steel beam transition section comprises a second bottom plate, a second middle web plate and a second side web plate, and the outer contour of the cross section of the steel beam transition section is consistent with the outer contour of the cross section of the steel-concrete combined section. The steel-concrete combined section is simple in structure and convenient and efficient to construct, the stress performance of the steel-concrete combined section is optimized, and the steel-concrete combined section meets the structural requirements of the large-span cable-stayed bridge.

This utility model discloses a quick-connect seepage prevention structure for waterstops in underpass structures at road-bridge junctions, including adjacent overlapping waterstop bodies, pressing components, and a cold-bonded seepage prevention layer. The advantages of this utility model are: (1) Improved connection strength: The composite seepage prevention structure with cold bonding and pressing ensures stability under water pressure and structural deformation force, and the cold-bonded seepage prevention layer improves the seepage prevention effect of the joint; when subjected to 1.2MPa water pressure and ±20% structural deformation, no structural damage or leakage will occur; (2) Excellent sealing performance: It fills the transverse and longitudinal gaps tightly, and the formed cold-bonded seepage prevention layer fills the gaps that will inevitably form between the lower waterstop and the upper waterstop, as well as between the waterstop and the concrete structure, reducing the risk of leakage and ensuring waterproofing and structural safety; (3) Convenient and efficient construction: The construction method is clear and easy to operate, and the material cools down quickly, ensuring the safety of the underpass structure at the road-bridge junction.

The application discloses a kind of gob-side entry retaining support structure and construction method of steeply inclined coal seam fully mechanized working face.The support structure is arranged in the transport roadway near the side of goaf, including anchoring load-bearing parts, net body gangue retaining parts, restraint reinforcement, pre-stressed locking parts and flexible sealing material;Anchoring load-bearing parts are laid in the roof and bottom corner surrounding rock, net body gangue retaining parts are hung on the exposed section of anchoring load-bearing parts and cover along the whole height of roadway, restraint reinforcement is overlaid on the outside of net body and is connected with anchoring load-bearing parts, pre-stressed locking parts are set on the end of anchoring load-bearing parts and pre-tightening force is applied to form support base surface, and flexible sealing material is sprayed on the support base surface for sealing.The construction method includes drilling anchoring, hanging net body, installing restraint reinforcement, locking pre-tightening, spraying sealing.The application realizes the integration of support structure, has good gangue retaining and sealing effect, adapts to steeply inclined coal seam working condition, is convenient to construct and can be operated synchronously with mining, effectively improves the safety and reliability of gob-side entry retaining, and reduces the cost of mining.

The utility model relates to the field of building construction technology discloses a dustproof and noise reduction fence for building construction, including baffle no.

A lever-type device and method for testing the horizontal bearing capacity of underwater pile foundations is disclosed. The device includes a loading unit and a monitoring unit. The loading unit includes a support, a lever, a crossbeam, a cable, and a test vessel. The lower end of the support is fixed in the seabed or riverbed near the test pile. A bearing is welded normally to the upper end of the support. A hole is opened in the middle of the lever, serving as the fulcrum of the lever. The bearing at the upper end of the support passes through the opening in the middle of the lever and is connected to the support via a cap. The upper end of the lever is rigidly connected to one end of the crossbeam, and the other end of the crossbeam is rigidly connected to the outer wall of the test pile. One end of the cable is connected to the lower end of the lever, and the other end is connected to the test vessel. The monitoring unit includes a force gauge and a gyroscope. The force gauge is fixed to the crossbeam, and the gyroscope is fixed to the lever. Using this device for testing the horizontal bearing capacity of underwater pile foundations eliminates the need for high-level horizontal bearing capacity anchor piles to provide reaction force. It allows for single deployment, multiple tests, and reusability, making it economical and efficient.

The utility model relates to the technical field of steel structure reinforcement, in particular to a net rack wrapping steel pipe bolt type reinforcing structure which comprises a newly-added outer pipe formed by splicing two semicircular pipes, the two semicircular pipes are provided with matched connecting plates, and the two semicircular pipes are fixedly connected into an integral structure through bolts arranged on the connecting plates. The newly-added outer pipe is arranged on the periphery of the existing steel pipe in a sleeved mode, a certain gap is reserved between the newly-added outer pipe and the existing steel pipe, and filling materials are poured into the gap. The steel pipe reinforcing device has the advantages that the existing steel pipe is effectively reinforced without damage, and the existing steel roof truss structure is not influenced; the structure is simple and reasonable, the prefabrication degree is high, construction is convenient and efficient, rapid construction can be achieved in the skylight operation period, uninterrupted operation is ensured, and the method is suitable for popularization.

The utility model discloses a road drainage structure which is characterized in that a plurality of road edge stone drainage structures are arranged between a road and a green belt, a water accumulation pool (5) is arranged at the end or the middle of each road edge stone drainage structure (3), each road edge stone drainage structure (3) comprises a road edge stone, a drainage hole penetrating through the road edge stone front and back is formed in the road edge stone, and a back plate is arranged on the back side of the road edge stone. A U-shaped drainage ditch is formed between the road edge stone and the back plate, a step is arranged above the drainage ditch, the height of the step is lower than that of the back plate, a positioning hole is formed in the step, a partition plate (4) with leakage holes is buckled on the step, positioning columns are arranged below four feet of the partition plate and are fixed through the positioning holes, and the positioning hole of the drainage structure of the road edge stone is formed in the middle of the step. And the adjacent curbstone drainage structures are connected after the clapboards are buckled. According to the technical scheme, the integrity and the sealing performance of the drainage structure are enhanced, construction is efficient and convenient, and therefore the prison break risk is reduced, mice are effectively isolated, the environment is optimized, and neatness and attractiveness are achieved.

The invention relates to an embedded bar stiffener and a use method thereof. The embedded bar stiffener comprises a stiffener body, a plurality of small bags and a bag filling material, the reinforcing strip body is made of a fiber reinforced composite material; the small bags are located on the upper surface of the reinforcing strip body and evenly distributed in the length direction of the reinforcing strip body at intervals, closed cavities are formed in the small bags, and uneven indentations which are evenly distributed are arranged on the surface of the reinforcing strip body except the small bag areas. A cavity of the small bag is filled with the in-bag filling material, and the in-bag filling material is an efficient getter. The specific indentations are designed on the surface of the reinforcing strip body, so that the contact area and the mechanical occlusal force between the reinforcing strip body and the embedded steel bar glue are greatly increased, and the relative slippage between the glue and the reinforcing strip is effectively prevented. The small bag is slightly broken due to extrusion or colloid reaction heat, the getter is released, residual moisture and air in the hole and bubbles generated by curing can be actively and rapidly absorbed, and the hidden danger of interface bonding failure caused by hollowing and moisture is fundamentally eliminated.

The utility model discloses a cantilever underhanging formula steel hanger body for decorating curtain, including structural shear wall, the bracket structural shear wall is connected with truss beam, the outside welding of truss beam has vertical main keel, vertical main keel is connected with longitudinal main keel, both perpendicular settings, every longitudinal main keel all welds 2 20# channel steel, 20# channel steel is fixedly connected with the decoration curtain secondary keel through stainless steel bolt, cantilever structure combines vertical and longitudinal main keel and forms stable frame, can effectively disperse decoration curtain load, strengthens the stability under the action of wind, earthquake and other external force, cantilever formula design does not occupy indoor space, will not reduce indoor net height, is favorable to the reasonable planning and use of building indoor space, promotes space comfort degree and functionality, and each part can be prefabricated in the factory, and the on -the -spot is assembled, reduces the high altitude operation amount, improves construction efficiency, shortens the period of construction, reduces construction cost and safety risk.