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496 results about "Transverse reinforcement" patented technology
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Reinforcement bars provided perpendicular to the longitudinal reinforcement are referred to as transverse reinforcements. In a one way RC slab, the reinforcement bars spanning along short direction is referred to as main reinforcement and that spanning along the long direction is referred to as transverse reinforcement.
A rock and soil leakage detection device using distributed optical fiber temperature measurement
ActiveCN120253067BThermometer detailsFluid-tightness measurementMechanical engineeringMaterials science
The present invention discloses a rock and soil leakage detection device with distributed optical fiber temperature measurement, which relates to the technical field of rock and soil leakage detection. The device comprises longitudinal steel bars, transverse steel bars connected to the longitudinal steel bars, a second limiting buckle sleeved on one end of the longitudinal steel bars, a first connecting block provided with a latching unit on both sides, two ends of a sensing optical cable connected to an external optical fiber demodulator, and a heating wire inside the sensing optical cable connected to an external heating control module. The present invention provides a connection processing part, and when one end of the sensing optical cable passes through the second hanging ring, the sensing optical cable is pulled toward the first connecting block, so that the second hanging ring is pulled upward by the pulling force of the sensing optical cable, thereby preventing the sensing optical cable between the first connecting block and the second hanging ring from bending irregularly, so that the sensing optical cable is laid in an S-shaped regular manner on one side of the steel cage, thereby preventing the sensing optical cable from bending irregularly and affecting the calculation of the leakage point.
Owner:NANJING HYDRAULIC RES INST +3
Fabricated building stair mold
PendingCN121928664ADisassembly effectsFast clamping and fixingMould auxillary partsArchitectural engineeringRebar
The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.
Owner:ANHUI CONSTR ENG CHANGJIANG CONSTR INVESTMENT CONSTR IND CO LTD
Bridge hollow slab beam reinforcing structure and bridge
ActiveCN223189601UBridge erection/assemblyBridge strengtheningArchitectural engineeringStructural engineering
The utility model relates to the technical field of bridge reinforcement, and discloses a bridge hollow slab girder reinforcement structure and a bridge, which comprises a plurality of hollow slab girders arranged side by side, a plurality of webs are arranged in each hollow slab girder, the bottom surface of each hollow slab girder is provided with longitudinal reinforcers, the number of the longitudinal reinforcers is equal to that of the webs, and the longitudinal reinforcers are in one-to-one correspondence with the webs. The longitudinal reinforcements are arranged in the longitudinal direction of the bridge and comprise upper-layer sticky steel plates and lower-layer sticky steel plates, and the upper-layer sticky steel plates are located between the hollow slab girders and the lower-layer sticky steel plates; the transverse reinforcements are arranged in the transverse direction of the bridge, and all the longitudinal reinforcements are located between the transverse reinforcements and the hollow slab girders. According to the utility model, the problem that a bridge with high requirement on the strength of a reinforcing structure cannot be stably reinforced by a sticky steel plate reinforcing structure in the prior art is solved.
Owner:CHONGQING ZONGHENG ENG DESIGN CO LTD
A multi-stage adjustment mechanism for a prestressed positioning mesh
The present application relates to the technical fields of prestressed positioning mesh welding, and especially relates to a multi-stage adjusting mechanism for prestressed positioning mesh, which is provided with a welding control module, an information capturing module, a displacement analysis module and a welding correction module. The transverse steel bars are laid on the longitudinal steel bars through the laying unit, the intersection positions of the longitudinal steel bars and the transverse steel bars are welded through the welding unit, the vibration intensity change curve is drawn through the information capturing module, it is determined whether there is vibration allowance abnormal phenomenon at the intersection positions and the vibration allowance abnormal category of the intersection positions is determined through the abnormal analysis unit, the welding correction mode is selected through the welding correction module, and then, the quick abnormal risk identification according to the actual situation in the steel bar welding and sticking process is realized, the abnormal welding positions are classified and processed, the welding correction mode is adaptively adjusted, and the production efficiency and welding reliability of the prestressed positioning mesh are improved.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1
Corrugated steel bottom plate-T-shaped steel rib plate-UHPC combined bridge deck slab
The utility model belongs to the technical field of bridge engineering, and discloses a corrugated steel bottom plate-T-shaped steel rib plate-UHPC combined bridge deck slab which comprises a corrugated steel bottom plate, wave crests and wave troughs of the corrugated steel bottom plate are sequentially and alternately arranged in the transverse direction of a bridge deck and extend in the longitudinal direction of the bridge deck, and the wave crests and the wave troughs of the corrugated steel bottom plate are arranged in the longitudinal direction of the bridge deck. A longitudinal T-shaped steel rib plate is fixed in each trough of the corrugated steel bottom plate, a plurality of steel bar through holes are evenly distributed in the tops of webs of the T-shaped steel rib plates in the longitudinal direction, the positions of the steel bar through holes of the longitudinal T-shaped steel rib plates correspond one by one in the transverse direction, transverse steel bars penetrate through the longitudinal T-shaped steel rib plates, and a plurality of longitudinal steel bars are evenly distributed on the transverse steel bars. An ultra-high performance concrete filling layer is poured in a space formed by the corrugated steel bottom plate, the T-shaped steel rib plate and the reinforcing mesh; the problems that an orthotropic steel bridge deck is cracked due to fatigue, an asphalt pavement layer of a steel bridge deck is damaged, and a steel-UHPC combined bridge deck is complex in construction, low in speed and the like are solved.
Owner:ZHENGZHOU UNIV +3
Method for automatically penetrating transverse reinforcing steel bars up and down for intelligent mesh welding machine
The invention discloses a method for automatically penetrating transverse steel bars up and down for an intelligent mesh welding machine, and relates to the technical field of intelligent mesh welding machines. The problems that transverse rebar penetrating of a traditional intelligent mesh welding machine mostly depends on manual or semi-automatic operation, efficiency is low, and precision is difficult to control are solved. Production data are integrated and sensor signals are processed through the PLC, intelligent management and control of transverse steel bar up-and-down automatic steel bar penetrating are achieved, automatic decision making of a steel bar penetrating mode is achieved, manual intervention is reduced, the intelligent production characteristics of equipment are adapted, the automatic management and control requirement of an intelligent welding machine is met, and the production efficiency is improved. Posture calibration and counterpoint detection are achieved based on the detection sensor assembly, it is ensured that errors meet the + / -10 mm requirement by combining upper and lower layer supporting structures of the positioning die, the welding requirements of ribbed steel bars are met, the welding quality is stably improved, the takt of four seconds of every eight welding spots is synchronous, the remodeling time is shortened, feeding interruption is avoided, and the requirements of flexible production and continuous operation are met.
Owner:DIGITAL INTELLIGENT ZHULIAN TECHNOLOGY (SHANGHAI) CO LTD
Reinforcing mesh welding mechanism for concrete cable trench cover plate machining
The invention relates to the field of welding devices, in particular to a reinforcing mesh welding mechanism for concrete cable trench cover plate machining. The whole device is supported through a bottom plate at the bottom, a supporting frame used for containing a reinforcing mesh is arranged on the bottom plate, an electric resistance welding device used for conducting row welding on the reinforcing mesh is arranged on the bottom plate, and a traction device used for pulling the reinforcing mesh to move is arranged on the bottom plate. The reinforcing mesh is composed of a plurality of transverse reinforcing steel bars and longitudinal reinforcing steel bars alternately located above and below the transverse reinforcing steel bars, an upper discharging mechanism for placing the longitudinal reinforcing steel bars on the transverse reinforcing steel bars is arranged on the bottom plate, and a lower discharging mechanism for abutting the longitudinal reinforcing steel bars against the transverse reinforcing steel bars from the lower portion is arranged on the bottom plate. An upper welding electrode and a lower welding electrode on the electric resistance welding device can both ascend and descend in the vertical direction, and the moving distances of the upper welding electrode and the lower welding electrode before welding are different according to different positions of longitudinal steel bars. By welding the longitudinal reinforcing steel bars which are alternately arranged up and down, the reinforcing mesh can well adapt to bidirectional force, and the overall strength of the reinforcing mesh is improved.
Owner:YINGDE YOUPENG BUILDING MATERIALS CO LTD
Cavity assembly type reinforced concrete web bridge structure and construction method thereof
PendingCN120797518ABridge structural detailsBridge erection/assemblyStress concentrationBridge engineering
The invention discloses a cavity assembly type reinforced concrete web bridge structure and a construction method thereof, and relates to the technical field of bridge engineering.The cavity assembly type reinforced concrete web bridge structure comprises a plurality of cavity type webs arranged in the length direction of a bridge, the upper side and the lower side of the web center component are each provided with a steel bar staggered net composed of a plurality of oblique steel bars and a plurality of transverse steel bar rings, and the steel bar staggered nets are in a hollow frustum shape. The top flange steel plate is horizontally arranged at the top of the cavity type web, and a concrete bridge deck is arranged at the top of the top flange steel plate; the lower flange steel plate is horizontally arranged at the bottom of the cavity type web; according to the hollow cavity type web, the inclined steel bars, the transverse steel bar rings and the web center component are combined to form a hollow frustum structure, the dead weight of a web bridge structure is greatly reduced, stress concentration is avoided, the cracking risk of the structure is reduced, and the overall strength and stability of the structure are effectively enhanced; meanwhile, local shear resistance and bending resistance are enhanced, the service life of the bridge is prolonged, and the probability of local damage is reduced.
Owner:FOSHAN RAIL TRANSIT DESIGN & RES INST CO LTD
Wall frame structure for preventing cracks and leaks
ActiveCN224338461Ueasy to separateavoid damageWallsAuxillary members of forms/shuttering/falseworksRebarUltimate tensile strength
This utility model discloses a wall frame structure for preventing cracks and leakage, belonging to the technical field of wall frame technology. It includes a casting slab, a reinforcing plate, a positioning structure, a feeding structure, casting holes, transverse reinforcing bars, longitudinal reinforcing bars, a main forming plate, and a secondary forming plate. The reinforcing plate abuts against the casting slab. The casting hole is located on the casting slab. The positioning structure is set on the casting slab. The transverse reinforcing bars are placed within the casting slab through the casting hole. The longitudinal reinforcing bars are placed within the casting hole and abut against the transverse reinforcing bars. The feeding structure is located on the reinforcing plate and is used to feed material into the casting hole. The main forming plate abuts against the side of the casting slab away from the reinforcing plate, and the secondary forming plate abuts against the side of the reinforcing plate away from the casting slab. This utility model, by forming a single frame with the reinforcing plate and casting slab, ensures uniform internal stress during use, greatly enhancing the overall structural strength and effectively improving the wall's resistance to cracks and leakage.
Owner:ZHEJIANG BENTENG MUNICIPAL GARDEN CONSTR ENG CO
Prefabricated lattice wall
The invention belongs to the field of building components, and particularly relates to a prefabricated lattice wall. According to the technical scheme, the structure is formed by splicing a plurality of aerated concrete reinforced plates, a plurality of transverse penetrating type circular-section grouting holes are formed in the aerated concrete reinforced plates, transverse penetrating type semicircular-section grouting holes are formed in the short edges of the aerated concrete reinforced plates, and vertical penetrating type semicircular-section grouting holes are formed in the long edges of the aerated concrete reinforced plates; the two vertical penetrating type semicircular section grouting holes in the splicing position of every two adjacent aerated concrete reinforced plates are spliced to form a vertical circular section grouting hole, and criss-cross hollow grids are formed. Transverse steel bars and vertical steel bars are respectively inserted into the hollow grids to form a criss-cross steel bar net, grouting materials are poured into the hollow grids, and the steel bar net and the grouting materials form a lattice-shaped connecting structure together. According to the prefabricated lattice type wall body, the heat preservation performance, the shock resistance and the construction precision of the wall body can be effectively improved.
Owner:SHENYANG JIANZHU UNIVERSITY
Cavity leveling layer structure suitable for bridge longitudinal section transformation and construction method of cavity leveling layer structure
PendingCN120486273ABridge structural detailsBridge erection/assemblyBridge engineeringArchitectural engineering
The invention discloses a cavity leveling layer structure suitable for bridge longitudinal section transformation and a construction method thereof, belongs to the field of bridge engineering, and solves the problem that the dead weight of a box girder can be increased by adding a concrete leveling layer. The device comprises a box girder, a concrete leveling layer is arranged at the top of the box girder, and a plurality of hollow pipes are arranged in the concrete leveling layer side by side. The construction method comprises the following steps: cleaning sundries on the surface of the box girder structure to completely expose the top surface of the box girder; chiseling a notch in the top surface of the box girder, wherein the depth of the notch is based on the exposure of box girder steel bars; the vertical steel bars and the box girder steel bars are welded, and the notches are filled; longitudinal steel bars and transverse steel bars located on the lower portion of the concrete leveling layer are bound and fixed through vertical steel bars; hollow pipes are installed, and the hollow pipes are laid between the vertical steel bars; longitudinal steel bars and transverse steel bars located on the upper portion of the concrete leveling layer are bound and fixed through vertical steel bars; and pouring a concrete leveling layer. The self weight of the structure is effectively reduced.
Owner:中国市政工程西北设计研究院有限公司
An assembly double-column bridge pier
The utility model provides a kind of assembled double-column pier, including cap beam, column and pile foundation are sequentially arranged below cap beam, first tenon is symmetrically set in the left and right sides of the lower surface of cap beam, first mortise and second tenon are respectively set in the upper and lower surfaces of column, pile foundation reinforcing section is set on the upper end of pile foundation, second mortise is equipped at the top surface of pile foundation reinforcing section and opposite column, the periphery of first tenon is filled with self-compacting super high performance concrete from the bottom of first mortise to the top of first tenon, the periphery of second tenon is filled with self-compacting super high performance concrete from the bottom of second mortise to the top of second tenon, the utility model replaces longitudinal, transverse reinforcement in the prior art by self-compacting super high performance concrete, on the basis of ensuring the integrity and stability of assembled double-column bridge, it does not need to reserve and arrange reserved reinforcement at mortise and tenon connecting part in bridge assembling construction process, can greatly shorten project duration, improve the economic benefit of project.
Owner:XINJIANG TRANSPORTATION PLANNING SURVEYING & DESIGN INST
Binding tool and binding method for vertical prefabricated concrete tower drum ring sheet steel bars
The invention discloses a vertical prefabricated concrete tower drum annular sheet steel bar binding tool and method.The vertical prefabricated concrete tower drum annular sheet steel bar binding tool comprises a binding support, a transverse steel bar end positioning plate, a transverse steel bar positioning plate and a longitudinal steel bar positioning plate, the binding support comprises a base distributed in an arc shape, and a plurality of stand columns are evenly distributed on the base; a sliding rail is arranged between every two adjacent stand columns, an installation pipe is arranged on each sliding rail in a sliding mode, the installation pipes can move in the axial direction of the sliding rails to form a binding area with the adjustable diameter, the transverse steel bar end positioning plates and the transverse steel bar positioning plates are matched to position and install transverse steel bars, the longitudinal steel bar positioning plates are detachably connected with the installation pipes, and the longitudinal steel bar positioning plates are detachably connected with the installation pipes. The longitudinal reinforcing steel bar binding tool is used for installing longitudinal reinforcing steel bars, the diameter of a binding area can be rapidly adjusted by moving the installation pipe, meanwhile, the longitudinal reinforcing steel bar positioning plate with the corresponding length is installed, the stable reinforcing steel bar binding tool can be formed, and therefore the tool adapts to concrete tower drum ring pieces of various structural diameters, and applicability is improved.
Owner:SHANGHAI TAZHI TECHNOLOGY CO LTD
Multi-layer prefabricated reinforcing mesh stacking and binding device and using method thereof
PendingCN121138585ABuilding reinforcementsBuilding material handlingClassical mechanicsMesh reinforcement
The invention relates to the technical field of constructional engineering, in particular to a multi-layer prefabricated reinforcing mesh stacking and binding device and a using method thereof.The multi-layer prefabricated reinforcing mesh stacking and binding device comprises channel steel binding platforms used for binding reinforcing meshes, and the multiple channel steel binding platforms are sequentially stacked from bottom to top; the channel steel binding platform comprises two pieces of symmetrically-arranged channel steel, a plurality of positioning clamping grooves are symmetrically formed in the opposite sides of the two pieces of channel steel, and the multiple positioning clamping grooves are evenly formed in the length direction of the channel steel. The reinforcing mesh comprises a plurality of transverse reinforcing steel bars and a plurality of longitudinal reinforcing steel bars, the transverse reinforcing steel bars are in lap joint with the corresponding positioning clamping grooves in the channel steel binding platform, and the longitudinal reinforcing steel bars are in lap joint with the upper portions of the transverse reinforcing steel bars at equal intervals. According to the stacking and binding device for the layer prefabricated reinforcing meshes, site resources can be saved, and the binding quality of the reinforcing meshes can be guaranteed.
Owner:CHINA NUCLEAR IND HUAXING CONSTR
A combined tube segment structure and method of manufacture
The application relates to the technical field of tunnel construction, and discloses a combined segment structure, which comprises a UHPC segment and concrete test blocks, a plurality of concrete test blocks are arranged on the outer side surface of the UHPC segment in sequence along the curvature direction of the UHPC segment, the UHPC segment is provided with main reinforcement and stirrups, the main reinforcement is provided with a plurality of strips along the curvature direction of the UHPC segment, a plurality of stirrups are sequentially sleeved on the plurality of main reinforcement and are connected with the main reinforcement through binding, the concrete test blocks are provided with transverse steel bars and longitudinal steel bars, the transverse steel bars extend to the outside of the concrete test blocks and are overlapped with the stirrups, and the longitudinal steel bars extend to the outside of the concrete test blocks and are overlapped with the main reinforcement. Compared with the prior art, the structure design realizes optimal control of material cost by filling the concrete test blocks in the non-key stress area under the premise of hardly sacrificing the core performance of UHPC materials such as strength, durability and stress condition, and effectively eliminates the core economic obstacle in the popularization process of the UHPC shield segment.
Owner:GUANGZHOU METRO GRP CO LTD +3
Method for testing compressive static load of single pile of poured bearing platform and bottom plate
The invention discloses a method for testing compressive static load of a single pile of a cast bearing platform and a cast bottom plate, which comprises the following steps of: 1) chiseling a circle of concrete, close to the bearing platform, of the bottom plate, and cutting off longitudinal reinforcing steel bars and transverse reinforcing steel bars anchored with the bearing platform in a reinforcing mesh of the bottom plate; (2) a static load test device is arranged, and a compression resistance static load test is carried out; (3) a plurality of outer ring grooves and inner ring grooves are dug in the side face of the circle of bottom plate and the side face of the bearing platform, and an annular water swelling strip is fixed to each ring groove; a plurality of grouting anchor sleeves with grouting holes are adopted to be connected with all longitudinal steel bars and transverse steel bars in the bottom plate steel bar mesh cut off in the first step in a one-to-one correspondence mode; (4) a circle of inner ring grouting annular pipe is pre-buried at the bottom of the side face of the bearing platform; a circle of outer ring grouting annular pipe is pre-buried at the bottom of the side face of the bottom plate; and (5) concrete, close to the bearing platform, of the bottom plate is poured again. According to the method, the workload is greatly reduced, and the structural strength and good waterproof performance can be ensured.
Owner:NINGBO CONSTR ENG GROUP
Bridge profile steel expansion joint low-maintenance water-seepage-prevention construction technology
PendingCN120592126ABridge structural detailsBridge erection/assemblyPondingArchitectural engineering
The invention discloses a low-maintenance water-seepage-prevention construction process for a bridge section steel expansion joint. The low-maintenance water-seepage-prevention construction process comprises the following specific process steps that (1) construction preparation is conducted; 2) slotting the expansion joint; 3) mounting a profile steel expansion joint; 4) installing a guide and drainage system; (5) concrete is poured; (6) concrete curing; (7) an anti-blocking rubber strip is installed; (8) carrying out quality acceptance; an auxiliary welding device in the step 3 comprises expansion joints, embedded steel bars, a gantry module mechanism, a positioning mechanism, a supporting mechanism, a walking mechanism and transverse steel bars. The embedded steel bars are fixed to the road surface, the expansion joint is placed between the embedded steel bars, and the gantry module mechanism stretches across the expansion joint. Water accumulation at the joint of concrete and asphalt at the expansion joint can be prevented, impermeability of the steel fiber concrete reinforced body is enhanced, the compact structure is guaranteed through four-layer maintenance, the device is kept clean through anti-blocking rubber strips, all links are matched with one another, a full-period protection closed loop is formed, and the profile steel expansion joint can be prevented from inclining and deviating in the pouring process.
Owner:临沂市政集团有限公司
New-generation prestressed concrete hollow slab as well as preparation method and construction method thereof
The invention discloses a new-generation prestressed concrete hollow slab, and relates to the technical field of fabricated building boards, the new-generation prestressed concrete hollow slab comprises a first hollow slab, a second hollow slab and / or a third hollow slab, the first hollow slab comprises a hollow slab main body, the hollow slab main body comprises a slab body, and a plurality of hollow holes are formed in the slab body at intervals in the width direction of the slab body; the hollow hole penetrates through the plate body in the length direction of the plate body, and a plurality of longitudinal prestressed tendons are arranged in the plate body in the width direction of the plate body at intervals. A plurality of transverse steel bars are arranged in the plate body of the second hollow plate in the length direction at intervals; and the third hollow slab is formed by compounding a hollow slab main body with concrete ribs with bayonets at four peripheral corners. The invention further provides a preparation method and a construction method of the new-generation prestressed concrete hollow slab. The blank that no bidirectional stress new-generation prestressed concrete hollow slab is used in a fabricated building is filled up, and iterative development of the new-generation prestressed concrete hollow slab is explained through new materials, new structures, new connection technologies and new processes.
Owner:HEBEI JINGTONGBUIIDING TECH CO LTD +2
A concrete precast slab containing a sandwiched thermal insulation layer
The utility model belongs to prefabricated slab manufacturing technical field, concretely is a kind of concrete prefabricated slab containing sandwich thermal insulation layer, including thermal insulation board, the upper and lower of thermal insulation board is respectively provided with the reinforcing mesh surface being formed by transverse reinforcement and longitudinal reinforcement, tightening structure, the reinforcing mesh surface of the upper and lower sides of thermal insulation board is respectively acted with the both ends of tightening structure, in the thermal insulation layer of inside being provided with wave structure, can reduce the use of concrete, reduce the mass of prefabricated slab, to facilitate handling assembly, simultaneously under the self performance of thermal insulation layer, can improve the thermal insulation effect of prefabricated slab, in the process of buckling, can guarantee the form of reinforcing mesh surface, and the opposite pull of both sides, can reduce the concrete layer of forming to fall off, better guarantee the quality of the prefabricated slab of forming.
Owner:BAIYIN MINING & METALLURGY VOCATIONAL & TECH COLLEGE
Quickly detachable reinforcing mesh
Owner:QINGDAO NIUDECAO WIRE MESH CO LTD
Novel construction device for preventing pile core from being polluted
The utility model relates to a novel construction device for preventing a pile core from being polluted, which relates to the technical field of pile foundation construction and comprises a base, a vertical reinforcing steel bar is connected to the center of the base, a fixing device is connected to the top end of the vertical reinforcing steel bar and comprises a transverse sleeve, two transverse reinforcing steel bars are sleeved on two sides of the sleeve, and the outer ends of the transverse reinforcing steel bars extend out of the sleeve. The base is fixed in the pile core through the fixing device, the vertical steel bar surrounds the air bag and blocks the pile core through the air bag, the annular air bag is filled in a gap between the outer side of the vertical steel bar and the inner side of the pile core, the blocking effect is better, slurry or garbage is prevented from falling into the pile core due to displacement and damage of the blocking baffle, and the possibility of pile core cleaning and water pumping is reduced; the construction efficiency and the construction quality of pile core grouting are improved; and the base and the air bag can be taken out when the pile core is grouted, so that the base and the air bag can be recycled.
Owner:THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV +1
A steel-concrete composite orthotropic bridge deck and a design method thereof
The application discloses a steel-concrete composite orthotropic bridge deck and a design method thereof, and relates to the technical field of civil engineering, and solves the technical problem of a heavy self-weight and high steel ratio of a bridge deck in the prior art; the application comprises a concrete layer, a reinforcing mesh and a bottom steel plate are arranged in the concrete layer, the bottom steel plate is arranged at the bottom of the concrete layer, an open-hole steel plate is vertically arranged between the reinforcing mesh and the bottom steel plate, the open-hole steel plates are arranged in an array, the concrete layer between the longitudinally arranged open-hole steel plates is provided with a trapezoidal hollowing-out portion, the reinforcing mesh comprises transverse steel bars and longitudinal steel bars, and when the concrete layer is cast, concrete flows into the round holes of the open-hole steel plates to form concrete dowel shear connectors; and the concrete layer is made of ultra-high performance concrete; the application has a high concrete hollowing-out rate, a small cross-sectional area and a light self-weight, and solves the problem of a heavy self-weight of a steel-concrete composite orthotropic bridge deck.
Owner:SOUTHWEST JIAOTONG UNIV +1
Aluminum-plastic panel with corrosion-resistant function
The utility model relates to the technical field of aluminum-plastic panels, in particular to an aluminum-plastic panel with a corrosion-resistant function, which comprises an upper aluminum plate and a lower aluminum plate, the upper end of the upper aluminum plate is fixedly connected with a silencing plate, a circular groove is processed on the inner wall of the silencing plate, the outer wall of the silencing plate is fixedly connected with a first corrosion-resistant layer, and the lower end of the silencing plate is fixedly connected with a second corrosion-resistant layer. The lower end of the upper aluminum plate is connected with a reinforcing mechanism. The clamping blocks are pushed into the lower aluminum plate and the upper aluminum plate, the clamping blocks enter the clamping grooves in the transverse reinforcing strips to be clamped, the connecting strips can be fixed to the peripheries of the lower aluminum plate and the upper aluminum plate, the square strips and the square grooves which are staggered on the outer sides of the connecting strips are in butt joint, screws are not needed in the installation process, and installation is more convenient. A plurality of aluminum-plastic plates mainly formed by the lower aluminum plates and the upper aluminum plates are mounted, the surfaces of the lower aluminum plates and the upper aluminum plates are prevented from being damaged in the mounting and fixing process, and the aluminum-plastic plates can be reused.
Owner:JILIN AOLIWEI BUILDING MATERIALS CO LTD
A subframe assembly incorporating a dual-function load-bearing structure under the floor in the event of a side collision, and a motor vehicle incorporating such an assembly.
A subframe assembly comprising a dual-function load-bearing structure under the floor in the event of a side collision, and a motor vehicle comprising such an assembly. The invention relates to a subframe assembly (1) of a motor vehicle, comprising: - a front floor (5), comprising a front portion (7) and a central portion (9), said front and central portions being connected by welding, - a longitudinal side member (3), bordering a portion of said front floor, - a rear frame member (15), opposite said longitudinal side member, - a set of transverse stiffeners (25) connecting said longitudinal side member to said rear frame member, - a longitudinal reinforcement piece (17) extending longitudinally over the front portion (7) of said front floor.According to the invention, the base assembly (1) comprises a transverse reinforcement piece (27), extending transversely over the front part (7) of said front floor, connecting said rear frame (15) to said longitudinal reinforcement piece. Figure 2.
Owner:STELLANTIS AUTO SAS
A mortarless reinforced block shear wall system and its construction technology
The present invention relates to a mortarless reinforced block shear wall system, which includes two steel pipes. A wall is arranged between the two steel pipes. The wall is composed of a number of blocks stacked together. Mortise and tenon joints are provided between adjacent blocks both vertically and horizontally. A number of horizontal steel bars are vertically and evenly distributed inside the wall and penetrate through the blocks horizontally. The left and right ends of each horizontal steel bar are embedded inside the steel pipe on the same side and fixed. A number of vertical steel bars are horizontally and evenly distributed between the horizontal steel bars and penetrate through the blocks vertically. Concrete is poured inside the steel pipes and the blocks. The present invention has the following advantages: the steel bar mesh does not need to be tied, no formwork is required, it is not easy to leak slurry, there is no need to weld between the steel bars and the steel pipes and the connection is reliable, no mortar needs to be smeared, the construction is convenient, the construction cost is low, the construction speed is fast, and it has good integrity, fire resistance and seismic performance. This product is less affected by the construction environment and can be constructed all-weather. This product can be applied to high-rise buildings, with a short construction period, improving the structural integrity and seismic performance.
Owner:FUZHOU UNIV
Basement post-cast strip cover plate and mold
The basement post-cast strip cover plate comprises a plate body formed by concrete pouring, the plate body is of a rectangular structure, transverse reinforcing steel bars and longitudinal reinforcing steel bars are embedded in the plate body, and the corresponding intersection points of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars are fixed in a twisted mode through binding wires. Extending sections are arranged on two end sides, corresponding to the plate body, of the longitudinal steel bars; a pouring hole used for pouring is reserved in the center of the plate body. The basement top plate and the side wall post-cast strip are sealed in advance through the prefabricated plates, basement top plate waterproof construction and earthwork backfilling work are conducted alternately, and the problem that the post-cast strip cannot be sealed for a long time is solved. Powerful guarantee is provided for accelerating the engineering construction progress, and meanwhile, the leakage condition of the post-cast strip is reduced. The construction period is shortened, the construction period is saved by two months, and the leakage rate is reduced by 5%.
Owner:ANHUI WATER CONSERVANCY DEV CO LTD
Prefabricated wall body for low-rise civil self-built house and connecting structure of prefabricated wall body
The utility model discloses a prefabricated wall for a low-rise civil self-built house and a connecting structure of the prefabricated wall. The prefabricated wall for the low-rise civil self-built house comprises a prefabricated wall body. First connecting notches are formed in the two transverse ends of the prefabricated wall body; a plurality of transverse steel bars with the two ends extending out of the connecting notches in the two ends of the prefabricated wall body are evenly distributed in the prefabricated wall body from top to bottom. The first connecting notches are formed in the two ends of the transverse ends of the prefabricated wall bodies, the transverse steel bars with the two ends extending out of the connecting notches in the two ends of the prefabricated wall bodies are evenly distributed in the prefabricated wall bodies from top to bottom, and when the transverse ends of the two prefabricated wall bodies are in butt joint, the two first notches form the pouring groove; after the two corresponding transverse steel bars are connected through the transverse connecting steel bars, concrete is poured into the pouring groove on site to complete transverse connection of the prefabricated wall body, the using amount of on-site formworks and steel bars is reduced, meanwhile, stirrups and longitudinal steel bars do not need to be bound on site, the using amount of the steel bars is greatly reduced, and therefore the material cost is reduced.
Owner:中铁建(无锡)工程科技发展有限公司
A reinforced anchorage structure for pull-out pile heads
This utility model provides a reinforced anchorage structure for tension-resistant pile heads, including a base plate, a pile body, and a pile frame. The pile body is disposed on the base plate; the pile frame is disposed within the pile frame and includes positioning ring bars adapted to adjust the vertical length of the anchorage reinforcement. The pile frame includes a support plate, longitudinal reinforcement, and transverse reinforcement. The support plate is disposed within the pile frame; the longitudinal reinforcement is disposed on the support plate and extends along the pile frame into the base plate; the transverse reinforcement is spaced apart on the longitudinal reinforcement and welded to it. In this utility model, by setting the above structure, the anchorage reinforcement can be fixedly connected, ensuring that the anchorage reinforcement will not be displaced due to external forces. Simultaneously, since the entire tension-resistant pile head is disposed within the base plate, the thickness of the base plate and the anchorage length of the reinforcement are not increased, thus reducing construction costs and shortening the construction period.
Owner:CHINA CONSTR SCI & IND CORP LTD +1
Supporting structure capable of reducing deformation of foundation pit close to existing tunnel
Owner:CHINA RAILWAY SHISIJU GROUP CORP +2
Fabricated bridge expansion device anchoring structure and construction technology
The invention belongs to the technical field of bridge construction, and discloses a fabricated bridge expansion device anchoring structure and a construction technology, the fabricated bridge expansion device anchoring structure comprises a first beam body and a second beam body, the first beam body and the second beam body are respectively provided with a mounting groove, the top of each mounting groove is connected with a plurality of connecting pieces, and the outer sides of the plurality of connecting pieces on the same side share an expansion joint structure; the connecting pieces comprise bottom plates and high-strength bolts, the bottom plates are connected with side plates, bolt holes are formed in the bottom plates, steel bar holes are formed in the side plates, transverse steel bars are slidably connected to the inner walls of the steel bar holes, and the first beam body and the second beam body are each provided with a plurality of mounting holes. The connecting pieces are fixedly connected with the corresponding first beam body and second beam body through the mounting holes and high-strength bolts, and the high-strength bolts are in threaded connection with nuts. According to the method, only the thin asphalt concrete surface layer needs to be cut off, the main body structure of the bridge cannot be damaged, mechanical anchoring is conducted through the connecting pieces and the high-strength bolts, and rapid and reliable connection between the expansion joint structure and the bridge structure is achieved.
Owner:BEIJING YIZHIDAO BRIDGE TECH CO LTD +1