632 results about "Transverse reinforcement" patented technology

The invention relates to a motor vehicle comprising a body that comprises: - at least one cavity (L) that receives battery modules (B), the cavity (L) comprising a lateral face (F) arranged laterally with respect to the battery modules (B) with reference to the lateral axis (Y); and a lower support (S) arranged beneath the battery modules (B) with reference to the vertical axis (Z); - at least one transverse reinforcement part (A) arranged laterally with respect to the cavity (L) with reference to the lateral axis (Y); characterised in that the body comprises: - at least one programmably deformable part (D) arranged between the reinforcement part (A) and the cavity (L), the programmably deformable part (D) being configured to limit the deformation of the cavity (L) in the event of an impact on the reinforcement part (A). The invention further relates to a manufacturing method based on such a vehicle.

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.

The utility model discloses an outdoor aproll anti-sedimentation structure, which relates to the technical field of building construction, and comprises a construction wall body, and through the arrangement of insertion holes and longitudinal steel bars, when aproll construction is carried out at the joint part of the building wall body, in order to improve the quality of the aproll construction at the edge of the building wall body, the construction process is simple; in order to reduce the condition that the surface is aged and cracked after apron construction, a linear insertion hole can be formed in the surface of a wall body, longitudinal steel bars are inserted into the insertion hole, meanwhile, transverse steel bars are bundled with the longitudinal steel bars through iron wires, so that a grid shape is formed between the longitudinal steel bars, PVC pipes are placed on the surfaces of the grid-shaped steel bars, and the longitudinal steel bars and the transverse steel bars are bundled through the PVC pipes. And all-directional pouring is conducted through concrete, after initial setting of the concrete, the PVC pipe is taken away, a drainage ditch is formed in the surface of the concrete, the drainage ditch is connected with an outdoor rainwater well, the effect of fully draining rainwater of the eave is achieved, and the effect of improving the water dispersing construction quality of the edge of the wall is achieved.

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.

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.

The invention relates to the technical field of ship construction, in particular to a ship broadside structure assembling method which comprises the following steps: marking an assumed center line, a horizontal line and a rib inspection line of a jig frame; the deck and the outer plate are installed on the jig frame to be positioned and fixed; marking datum lines on the deck and the outer plate according to the assumed center line, the horizontal line and the rib inspection line; a transverse component, a longitudinal component, a broadside toggle plate, a bulk toggle plate, a bottom longitudinal component, a side air door base and a fender are installed on the deck and the outer plate according to the datum line, and a broadside structure is formed; longitudinal reinforcements and a plurality of transverse reinforcements are welded and mounted on the broadside structures, and hangers are welded on the broadside structures; the broadside structure is hoisted to the installation position, and the broadside structure and the main ship body are welded; a pipe frame structure is welded on the broadside structure, and the longitudinal reinforcements and the transverse reinforcements are removed; and folding welding of the broadside structure and the surrounding ship body structure is completed. According to the invention, the quality after assembly can meet the requirements.

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.

The utility model discloses a post-cast ultra-high performance concrete structure between a prefabricated top plate and prefabricated walls, which is characterized in that wall joint surfaces of the two prefabricated walls are arranged on two sides of a top plate joint surface of the prefabricated top plate to form a groove structure with a concave cross section; a plurality of top plate overhanging steel bars in one-to-one correspondence are arranged on the two top plate combination surfaces and are arranged in an inner row and an outer row in the thickness direction of the prefabricated top plate; each pair of coaxially-arranged top plate overhanging steel bars in the two rows of top plate overhanging steel bars close to the outside of the two prefabricated top plates are provided with additional steel bars; a plurality of transverse steel bars are arranged on the additional steel bars in the width direction of the groove structure; and ultra-high performance concrete is poured in the groove structure. During construction, the prefabricated wall and the prefabricated top plate are manufactured firstly; then temporarily fixing in place through a temporary support; additional steel bars and transverse steel bars are arranged, and finally ultra-high performance concrete is poured. The device is convenient to install, the project construction period can be shortened, the construction risk is reduced, and good social and economic benefits are achieved.

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.

The present invention relates to the technical field of concrete construction, and in particular to an elevated water tank bottom slab induced joint construction method. The method comprises the following steps: S1: laying externally bonded rubber waterstops below a center line position of a selected induced joint; S2: disconnecting bottom slab transverse reinforcements on the left side and the right side of the induced joint, and respectively additionally arranging constructional reinforcements on the left side and the right side of the induced joint; and laying a buried rubber waterstop at the induced joint; and S3: before pouring of a bottom slab of an elevated water tank to form a concrete pouring body, mounting a strip plate-shaped waterstop type inducer at the induced joint, additionally arranging an extruded polystyrene board at the upper end of the waterstop type inducer, when concrete pouring is completed, cleaning up the extruded polystyrene board, and then filling and sealing the induced joint with a polysulfide sealant. According to the present solution, the externally bonded rubber waterstop, the buried waterstop and other waterstop materials are used to perform anti-seepage treatment on a construction joint; and a construction joint is formed by means of the waterstop type inducer, and when the construction joint has been formed, the construction joint is filled with the polysulfide sealant, thereby achieving the compensation effect during expansion and contraction of the induced joint.

The assembly type ALC wallboard comprises ALC bricks, a transverse and longitudinal steel bar mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, the transverse and longitudinal steel bar mechanism comprises a transverse steel bar, a longitudinal steel bar, a transverse sealing plate and a lateral sealing plate, and the quick clamping mechanism comprises a clamping pipe, a clamping rod, a locking rod, a locking spring, a locking head and a clamping groove. The clamping auxiliary mechanism comprises a rotating pipe, a moving groove, a transverse rod, a ball and a gradient block, the ALC bricks can be transversely and longitudinally connected through transverse steel bars and longitudinal steel bars, a stable wallboard structure is formed, wallboard units are allowed to be rapidly connected through the combined design of connecting rods and clamping pipes, the installation efficiency is improved, and the construction cost is reduced. And through cooperation of the rotating frame at the top of the rotating pipe and an external tool, the unlocking process is simpler and more convenient.

The invention relates to the technical field of steel bar truss assembling, in particular to a floor support plate steel bar truss automatic assembling device which comprises an assembling supporting assembly, a clamping assembly and a centering assembly. A plurality of sliding grooves distributed front and back are formed in the left end and the right end of the top of the assembly table, and a torsion assembly is arranged on the side portion of the assembly table. The transverse reinforcing steel bar is clamped and fixed through the two grooves which are folded front and back to prevent the transverse reinforcing steel bar from moving, due to the fact that the transverse reinforcing steel bar is pressed on the top of the longitudinal reinforcing steel bar, limiting of the longitudinal reinforcing steel bar is achieved, and before the transverse reinforcing steel bar is clamped through the two grooves, position centering of the transverse reinforcing steel bar is completed through the two centering push heads of the centering assembly. Therefore, the regularity of the assembled floor support plate steel bar truss can be ensured.

The invention provides an automobile forecabin assembly and an automobile, the automobile forecabin assembly comprises a left longitudinal beam wheel cover assembly and a right longitudinal beam wheel cover assembly which are distributed at an interval, the automobile forecabin assembly further comprises a transverse reinforcing beam, and the two ends of the transverse reinforcing beam are connected with the left longitudinal beam wheel cover assembly and the right longitudinal beam wheel cover assembly respectively; at least one of the left longitudinal beam wheel cover assembly, the right longitudinal beam wheel cover assembly and the transverse reinforcing beam is of an integrated structure. Through the arrangement, reduction of machining procedures and machining time is facilitated, production efficiency is improved, production cost is reduced, meanwhile, the number of parts and complex connecting nodes between the parts are reduced, the integration degree of the automobile forecabin assembly can be improved, the structure of the automobile forecabin assembly is more compact and reliable, and the automobile forecabin assembly is more attractive and elegant. The overall strength and the structural stability of the automobile forecabin assembly are improved, and the lightweight design of an automobile body can be achieved easily.

The invention relates to the technical field of prestress positioning mesh welding, in particular to a multistage adjusting mechanism for prestress positioning meshes, which is provided with a welding control module, an information capture module, a displacement analysis module and a welding correction module. The welding unit is used for welding the crossed position of the longitudinal steel bar and the transverse steel bar, the information capturing module is used for drawing a vibration intensity change curve, and the abnormity analysis unit is used for judging whether the vibration margin abnormity phenomenon exists in the crossed position or not and determining the vibration margin abnormity type of the crossed position. And the welding correction mode is selected according to the type of the welding correction module, so that rapid abnormal risk identification according to the actual situation in the reinforcing steel bar welding and attaching process is realized, abnormal welding positions are classified, the welding correction mode is adaptively adjusted, and the production efficiency and the welding reliability of the prestress positioning mesh are improved.

According to the field welding-free fabricated composite structure bridge and the construction method thereof, the steel top plate-profile steel-inverted-V-shaped shear key UHPC composite bridge deck is adopted to replace a concrete bridge deck, and the corrugated steel web structures and the end connecting assemblies are matched to achieve segment welding-free connection; the problems that a prefabricated concrete bridge deck is large in dead weight and prone to cracking are solved, the defects that an all-steel bridge deck is fatigued and stiffening ribs are too many are overcome, and light weight and high performance of the structure are achieved. The transversely-arranged profile steel and the bridge deck structure are cooperatively stressed, and the overall rigidity of the bridge deck slab and the bearing capacity of the cantilever end are remarkably improved. Permanent and temporary combined three-stage connection is adopted for construction, integral hoisting of the whole span is achieved, and temporary piers can be omitted; the bridge deck slab joints are arranged in a staggered manner by adopting sawtooth grooves matched with longitudinal steel bars with end plates, stress transfer is realized by virtue of grouting materials, and joint transverse steel bars are omitted; the fulcrum area avoids concrete pouring in the hogging moment area through quick welding-free splicing of the fulcrum hoisting section, and the construction procedure is simplified.

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.

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.

The invention relates to a reinforcing steel bar acceptance system and method based on a BIM technology and an image recognition technology, and relates to the technical field of project acceptance, and the method comprises the steps: obtaining the acceptance time of reinforcing steel bar meshes of a plurality of regions; if the current time node is the acceptance time of the reinforcing mesh in a certain area, acquiring the reinforcing mesh image for analysis and identification; acquiring actual position coordinates of each reinforcing steel bar in the reinforcing steel bar mesh image through a BIM (Building Information Modeling) technology; according to the actual position coordinates of each steel bar, the distance between the adjacent vertical steel bars and the distance between the adjacent transverse steel bars in the target steel bar mesh are calculated, and acceptance check results about the positions, specifications, lengths and the distances of the steel bars are output. Data resources generated by checking and accepting the reinforcing steel bars can be reduced, and the checking and accepting result of the reinforcing steel bars can be rapidly output.

The invention provides an assembly type prefabricated floor slab, and relates to the technical field of building structures. The fabricated prefabricated floor slab comprises a concrete coaming body, a concrete slab is poured at the bottom end of the concrete coaming body, longitudinal steel bars are installed in the concrete slab, elbows are installed at the two ends of the longitudinal steel bars, transverse steel bar frames are installed at the two ends of the longitudinal steel bars, and transverse steel bars are installed at the top ends of the longitudinal steel bars; binding heads are installed at the two ends of the transverse steel bars, first outer frame steel bars are bound at the two ends of the transverse steel bars, connectors are installed at the two ends of the first outer frame steel bars, a protection mechanism is arranged at the top end of the concrete slab, a positioning plate is poured at the top end of the protection mechanism, and second outer steel bars are erected at the two ends of the positioning plate. Connecting steel bars are installed at the two ends of the second outer steel bars. Corresponding prefabricated floor slabs can be accurately aligned, meanwhile, movement and later pouring of the prefabricated floor slabs are facilitated, and the installation and construction efficiency of the prefabricated floor slabs is improved.

The invention discloses a battery pack end plate, a battery pack and a vehicle, the battery pack end plate comprises a body and a reinforcing assembly, the body is provided with a cavity, the reinforcing assembly is arranged in the cavity and connected with the inner wall of the cavity, and the reinforcing rib assembly comprises a transverse reinforcing rib and a longitudinal reinforcing rib which intersect with each other. And first reinforcing bosses are arranged at the intersections of the longitudinal reinforcing ribs and the transverse reinforcing ribs. The battery pack end plate disclosed by the invention has relatively high structural strength, good anti-deformation performance and light weight.

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.

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.

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.

The utility model discloses a laminated plate with an anti-bending structure, which comprises inner plates, the two inner plates are adhered to each other, a plurality of longitudinal reinforcing rods are arranged between the two inner plates, longitudinal clamping grooves for accommodating the longitudinal reinforcing rods are formed in the side walls, close to each other, of the two inner plates, and the longitudinal clamping grooves are used for accommodating the longitudinal reinforcing rods. The laminated plate comprises two inner plates, the side walls, far away from each other, of the two inner plates are both provided with outer plates in an adhesive mode, and a plurality of transverse reinforcing rods are arranged between the outer plates and the adjacent inner plates, so that the overall strength of the laminated plate can be improved through the longitudinal reinforcing rods and the transverse reinforcing rods, the laminated plate can be effectively prevented from being bent, and the service life of the laminated plate is prolonged. According to the laminated plate, the outer surface of the laminated plate can be prevented from being frosted through the anti-abrasion layer, meanwhile, the laminated plate can be prevented from being corroded through the anti-corrosion layer, the two inner plates and the two outer plates can be locked together through the fixing bolts, and the firmness of connection between the two inner plates and the two outer plates is further improved.

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.

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.

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.

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.

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.

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.