949 results about "Concrete beams" patented technology

The invention provides a reinforcing beam reinforced by adopting an out-of-service wind power blade and a method for determining the bending rigidity. According to the reinforcing beam, a plurality of grooves are formed in at least one surface of a reinforced concrete beam; the reinforcing layer comprises reinforcing ribs and a cement-based composite matrix, a plurality of protrusions are arranged on the surface of the cement-based composite matrix, the protrusions are arranged at intervals in the length direction of the cement-based composite matrix, and the protrusions are correspondingly embedded into the grooves, so that the reinforcing layer is connected with the reinforced concrete beam to obtain a reinforced concrete reinforced beam; wherein the reinforcing ribs are obtained by disassembling and cutting a main beam of the retired wind power blade. According to the reinforcing beam, the combining capacity of the reinforced concrete beam and the reinforcing layer is high, mutual slippage is avoided, the retired wind power blade composite material resources are utilized, the environment is protected, and the cost is saved while high-performance reinforcing treatment can be conducted on the damaged reinforced concrete beam structure or the reinforced concrete beam structure with insufficient bearing capacity.

The invention discloses a cast-in-place concrete beam construction method based on deformation control, and relates to the field of cast-in-place beam construction. S2, foundation treatment; s3, a support is erected and pre-pressed; s4, a formwork is installed; s5, steel bars and prestressed pipelines are installed; s6, concrete construction; and S7, removing the bracket. BIM modeling and an intelligent monitoring system are combined, the foundation treatment range is expanded, an automatic drainage system is arranged, edge settlement and rainwater soaking are effectively avoided, a support system is selected according to needs, anti-sidesway design is strengthened, stress is accurately simulated through graded automatic loading and pre-pressing, reliable deformation data are ensured through double monitoring, pre-camber calculation is scientific, errors are reduced, and the construction efficiency is improved. Formwork, reinforcing steel bars and prestressed pipelines are installed in a standard mode, the structural quality is guaranteed, concrete construction pays attention to temperature control and maintenance, crack reduction and support dismantling are symmetrically carried out in a grading mode, the springback amount is monitored in real time, and construction safety is guaranteed.

The invention relates to the technical field of beam bridge splicing, in particular to a large-span concrete continuous beam bridge splicing construction method based on intelligent construction. The method comprises the following steps: acquiring digital modeling data of a left bridge and a right bridge to be spliced; analyzing the digital modeling data, and determining the dynamic stress distribution of the whole construction process; acquiring deformation monitoring data in real time, analyzing the deformation monitoring data, and determining a coordinated deformation rule of the left and right bridges; and generating a splicing construction scheme according to the dynamic stress distribution and the coordinated deformation rule. And the decoupling problem of a digital model and a physical entity is eliminated. The problem of stress control blind areas is solved, stress space-time evolution is quantified, it is ensured that stress prediction covers all stages of construction, and the blind areas of a conventional static model are avoided. The problem of quantitative deficiency of the coordination deformation rule is solved, and the defect of neglecting the deformation coordination is avoided. The problem of construction decision lag is solved, the structural damage probability and temperature cracks are reduced, and coupling of construction execution and a physical mechanism is ensured.

The invention discloses a stirrup assembly type concrete beam column structure, which relates to the technical field of building structures and comprises a prefabricated lower column, a prefabricated upper column, a left superposed beam and a right superposed beam, the prefabricated lower column, the prefabricated upper column, the left superposed beam and the right superposed beam are distributed in a cross-shaped beam column structure; unique double-spiral stirrup configuration is applied to the column body, so that the torsion resistance and the bearing capacity are enhanced; the longitudinal bars and the stirrups are reasonably arranged on the superposed beam, so that the bending resistance and the shearing resistance are guaranteed. At the joint, the T-shaped channel steel plates, the fixing blocks and the hinged tension connecting rods form an energy dissipation system, and earthquake energy is effectively dissipated. The column body connection adopts the combination of a full-grouting nodular cast iron sleeve and a frame-shaped steel belt, and is matched with a post-pouring laminated layer to realize rigid connection. The limiting mechanism anchors a T-shaped channel steel plate through a double-end pull rod and a self-locking nut, a limiting clamping plate and a torsion spring form anti-pulling self-locking, the anti-seismic property of the joint is enhanced by combining a hinged tension connecting rod, and the structural reliability is improved.

The present invention discloses a method for constructing a large-volume, high-support prestressed concrete beam, which belongs to the technical field of prestressed beam construction. The construction preparation work includes presetting a full-length steel wire rope in a reserved channel for prestressed steel strands, installing a steel strand anchoring mechanism on the entrance side of the reserved channel, installing a limit plate on the exit side of the reserved channel, and presetting marks at the corresponding lengths of the steel strands extending from the movable pipe according to the length of the reserved channel; using the steel strand anchoring mechanism, multiple steel strands are synchronously pulled to the limit plate for cooperation, and the marks on the steel strands are adjusted to the same plane; the steel strands outside the reserved pipe near the anchor plate are cut, and a movable plate is installed, and the movable plates on both sides of the steel strands are tensioned to a preset elongation value; after tensioning is completed, grouting is performed in the reserved channel, and concrete is poured to form the beam body. The present invention can pipe multiple steel strands in the reserved channel as a whole, avoiding friction on the inner wall of the reserved channel and on the steel strands caused by pipe-lining individual steel strands.

The invention discloses an in-service concrete beam bridge dismantling process structure safety dynamic evaluation method, which comprises the following steps: installing a distributed optical fiber sensor and a high-precision series camera on a beam body, measuring beam body stress and temperature data, transmitting the data to a monitoring system, calculating beam body displacement monitoring image data, and transmitting the data to the monitoring system; based on bridge design data, bridge inspection data and static and dynamic load test data, establishing a corrected bridge disassembly finite element model; and building a bridge disassembly process forward and reverse proxy model based on a deep learning algorithm, and constructing a bridge disassembly process structure safety dynamic evaluation system. The data measured by the distributed optical fiber sensor and the high-precision series camera is real-time global, a large amount of data can be conveniently obtained, the forward and reverse models can be better dynamically corrected on the basis of the global data monitored in real time, and the safety state of the bridge dismantling structure can be dynamically evaluated in real time.

The invention provides a reinforced concrete beam global deformation automatic monitoring method and system, and relates to the technical field of engineering structure intelligent monitoring, and the method comprises the steps: obtaining an original image of a reinforced concrete beam; inputting the original image into the image segmentation model, and outputting a binary mask image; determining a center point of a beam body according to a foreground region in the binary mask image; identifying the edge of the foreground region through an edge detection algorithm and a contour extraction algorithm, and extracting an outer contour point set of the beam body; redundant points in the beam body outer contour point set are removed, and a beam body candidate corner point set is obtained; determining a plurality of target beam body angular points in the beam body candidate angular point set through a heuristic optimization algorithm; dividing the binary mask image into a plurality of edge regions through a central radioactive ray division method; dividing each outer contour point in the outer contour point set of the beam body into a corresponding edge area; constructing a linear profile curve; and calculating the vertical global deformation of the reinforced concrete beam according to the linear profile curve.

The invention relates to an efficient concrete crack detection method, device and system. The method comprises the following steps: acquiring an image of a to-be-detected concrete beam; generating a hierarchical grid backbone network of redundant features based on linear transformation, and performing feature extraction processing on the to-be-detected concrete beam image to obtain multi-scale feature information; performing feature fusion processing on the multi-scale feature information based on a geometric perception dynamic feature pyramid network to obtain fused feature information; based on task alignment of the dynamic detection head and classification and positioning processing of the fusion feature information, the target crack information corresponding to the to-be-detected concrete beam image is obtained, the concrete crack detection accuracy is improved, the weak texture feature extraction and retention capability is significantly enhanced, the leak detection risk of fine cracks is effectively reduced, and the detection efficiency is improved. The anti-interference capability under a complex background is enhanced, the false detection rate is reduced, mismatching of classification and positioning tasks is avoided, and the crack positioning precision is improved.

The utility model discloses an inclined column template support frame for cast-in-place of a concrete beam, which is characterized in that a vertical steel pipe upright post and an inclined steel pipe upright post are fixedly arranged on a bearing platform by utilizing bearing platform anchor bolts, and the vertical steel pipe upright post and the inclined steel pipe upright post are pulled into a whole by a horizontal pull rod along the direction of a bridge; the inclined steel pipe stand columns at the corresponding positions in the single span are connected into a whole through corner connectors and horizontal cross rods. The unloading blocks are arranged on the top faces of the vertical steel pipe stand columns and the top faces of the corner connectors respectively. A bearing beam is placed on the top face of the unloading block in the transverse bridge direction, a bailey beam is arranged on the top face of the bearing beam in the bridge direction, a distribution beam is placed on the top face of the bailey beam in the transverse bridge direction, and the batter post formwork supporting frame for concrete beam cast-in-place is formed. The bearing platform is fully used as a supporting point, the inclined steel pipe stand columns are arranged to share the upper load, a strip-shaped foundation does not need to be additionally arranged, construction cost is saved, the spanning capacity of the support is greatly improved, and the support is a preferable scheme for spanning rivers, roads and bridge sites in a large-span mode when the geological environment is poor.

The invention discloses a concrete beam damage assessment method and system fusing crack images and multi-scale features, and relates to the technical field of structural health monitoring. The method comprises the following steps: firstly, obtaining a binary image based on an original crack image of a concrete beam body; then, explicit features representing the macroscopic geometrical morphology of the crack are extracted from the binarized image, and implicit features representing the microscopic complexity and heterogeneity of the crack based on the multi-fractal theory are extracted from the binarized image; secondly, fusing the two types of features to form a fused feature space; and finally, training a machine learning model based on the feature space, establishing a nonlinear mapping relation between the machine learning model and a concrete beam damage factor, and realizing automatic and quantitative evaluation of a damage state by using the model. According to the method, dominant and recessive multi-scale features are fused, the defects that a traditional method depends on artificial experience and feature extraction is one-sided are overcome, the damage state can be represented more comprehensively and accurately, and the objectivity, accuracy and efficiency of evaluation are remarkably improved.

The invention provides a regional concrete beam and slab formwork and supporting system optimization design method. Firstly, initial database parameter information is set, parameter information of beams and plates is extracted through Revit software, and the information is preset; establishing a main ridge optimization model of the beam side formwork, comparing a calculated value with a limit value, and dynamically adjusting the number of supports to meet standard requirements; the number of beam bottom transverse vertical rods is determined, the distance between beam bottom longitudinal vertical rods is optimized, and it is ensured that all conditions meet the limit value standard; setting the limit spacing of the vertical rods at the bottom of the plate, and gradually adjusting parameters to meet the design requirements of stress values and bearing capacity. And finally, in Revit software, according to concrete beam and plate information and preset information, utilizing the optimal template configuration data to construct a complete template and support system. According to the whole process, from data initialization to specific component optimization to final result application, automatic design and optimization of the concrete beam, the plate formwork and the supporting system are achieved, and the design efficiency and precision are remarkably improved.

The invention provides a model training method and a reinforced concrete beam impact resistance prediction method and device, and belongs to the technical field of reinforced concrete.The experimental data of a reinforced concrete beam can be fitted in a Gaussian process regression mode, multiple pieces of sample data are obtained through a fitted curve, and the impact resistance of the reinforced concrete beam is predicted. Therefore, the first convolutional neural network model is trained by using the sample data to obtain the target impact resistance prediction model, and finally impact resistance prediction is performed through the target impact resistance prediction model, so that an experiment scene can be prevented from being established to carry out a freeze-thaw experiment, and the experiment efficiency is improved. Therefore, a large amount of prediction time cost and economic cost can be saved, and due to the fact that the training data utilize the advantages of the Gaussian process regression in the aspects of flexibility, uncertainty quantification capability, non-parameterization characteristics and the like, the prediction accuracy of the target impact resistance prediction model can be improved to a certain degree.

The construction device comprises a column body and a beam body, the beam body is installed on one side of the column body, a plurality of sets of supporting bolts are embedded in the position, located below the beam body, of one side of the column body, the surfaces of the supporting bolts are in threaded connection with supporting blocks, and a supporting plate is installed at the tops of the supporting blocks; the invention relates to the technical field of building construction. According to the construction device for the concrete beam-column joint, rapid adjustment and positioning of formworks are achieved through mechanical transmission, a two-way lead screw of the adjusting assembly is matched with the linkage assembly, vertical lifting and horizontal fine adjustment of a bottom plate can be completed in a short time, a bevel gear of the clamping mechanism is in transmission with a transmission lead screw, and the side formworks can be rapidly driven to be opened and closed; the whole process does not need to be disassembled and reassembled for many times, compared with a traditional manual installation mode, the formwork installation time is shortened by more than 40%, the labor intensity of workers is greatly reduced, and especially during batch node construction, the efficiency is improved more obviously.

The invention relates to the technical field of building construction, in particular to a prefabricated section steel column bracket and steel reinforced concrete beam joint which comprises a mounting sleeve, the mounting sleeve is arranged on a rod body of a steel column bracket in a sleeving mode, the steel column bracket is mounted on a column body of a steel column, edge grooves are formed in the two sides of the mounting sleeve correspondingly, steel bars for steel reinforced concrete beams are inserted into the edge grooves, and the steel bars for the steel reinforced concrete beams are inserted into the edge grooves. One end of the steel bar for the steel reinforced concrete beam is inserted into a column body of the steel column, a limiting frame is inserted into one end of the mounting sleeve, a hoop piece is integrally formed on the surface of the limiting frame, and a rubber clamping piece is arranged between the hoop piece and the steel bar for the steel reinforced concrete beam; the prefabricated steel bar frame has the advantages that the prefabricated technical scheme is adopted, the steel column bracket is directly sleeved with the mounting sleeve provided with the steel bars for the steel reinforced concrete beam, and compared with the mode that a steel bar frame is directly bound on site in the prior art, the workload and time of site construction are greatly reduced.

The invention provides an ecological slope protection structure and a construction method thereof, and relates to the field of slope engineering, the ecological slope protection structure comprises a geocell arranged in a shallow soil body of a slope surface, and plants are planted in the geocell; the precast concrete beam is arranged on the upper surface of the geocell and is arranged along the inclination direction of the slope slope surface; the cast-in-place concrete beams are arranged on the slope top, the slope middle and the slope toe respectively, the cast-in-place concrete beam located on the slope top is connected with the top of the prefabricated concrete beam, the cast-in-place concrete beam located on the slope toe is connected with the bottom of the prefabricated concrete beam, and the cast-in-place concrete beam located on the slope middle presses the prefabricated concrete beam on the slope face of the slope. The method has the effect of improving the overall stability of the slope.

The utility model relates to the technical field of composite shear walls, and particularly discloses an assembly type PEC recycled concrete beam column and steel plate composite shear wall which comprises a prefabricated column, a connecting plate is fixed to one side of the outer wall of the prefabricated column, a bearing plate is installed on one side of the connecting plate, and a prefabricated beam is fixed to the side, away from the connecting plate, of the bearing plate. A mounting hole is formed between the connecting plate and the bearing plate, and an assembling mechanism is arranged between the two precast beams; the splicing mechanism comprises a clamping groove, the clamping groove is formed in one side of the outer wall of the prefabricated beam, a sliding groove is formed in one side of the clamping groove, and the prefabricated shear plate can be located between the prefabricated beams through the prefabricated column, the connecting plate, the prefabricated beam, the bearing plate, the clamping groove, the sliding groove, the prefabricated shear plate and a sliding block in cooperation with a positioning groove, a positioning block and a material injection opening. And the situation that the labor intensity is increased while the assembling efficiency is low due to the fact that a plurality of bolts are used for fixed installation is avoided.

The invention relates to the technical field of anchor joint tension-shear bearing capacity calculation methods, in particular to an anchor joint after opposite-penetrating bolt combination and a tension-shear bearing capacity calculation method.The anchor joint comprises a joint plate and anchor bolts, the joint plate is used for connecting a horizontal steel member and a concrete beam, the anchor bolts comprise the opposite-penetrating bolts and chemical anchor bolts, and the opposite-penetrating bolts and the chemical anchor bolts are arranged on the joint plate. The horizontal steel member is connected with the gusset plate, the through bolt and the chemical anchor bolt penetrate through the gusset plate and are connected with the concrete beam, the through bolt penetrates through the concrete beam, and the chemical anchor bolt does not penetrate through the concrete beam. Through the combined application of the high-strength through bolts and the chemical anchor bolts, the shear capacity of the joint is greatly improved, and meanwhile, the combined force transfer system also improves the synergistic effect capacity of the anchor bolts and the safety redundancy of the joint; and the base material concrete is prevented from being split and damaged.

Provided in the present invention is a disk lock scaffold beam-bottom formwork structure, comprising a disk lock scaffold for supporting floorslabs on two sides of a concrete beam, and further comprising support beams used for supporting a beam bottom of the concrete beam, wherein the disk lock scaffold comprises a plurality of vertical rods distributed in sequence, each support beam is arranged between two adjacent vertical rods, the support beams are supported on the corresponding vertical rods by means of brackets, the vertical rods are provided with mounting positions capable of being detachably connected to the brackets, and the mounting positions are distributed in a height direction of the vertical rods. The present invention can reduce costs.

The invention belongs to the technical field of structural engineering, and relates to a design method of an FRP (Fiber Reinforced Plastic)-stainless steel mixed reinforcement seawater and sea sand concrete beam, which comprises the following steps of: inputting a design bending moment, and primarily selecting a section size and a material attribute; judging whether the area # imgabs0 # of the stainless steel bars in the pressed area is known or not, if the area # imgabs0 # is known, calculating # imgabs1 #, and if the area # imgabs1 # is unknown, calculating # imgabs2 # and # imgabs3 #; 4 # imgabs4 # and 5 # imgabs5 # are selected, and 6 # imgabs6 # and 7 # imgabs7 # are ensured; verifying whether the failure mode meets suitable rib failure or not, whether the flexural capacity meets # imgabs8 # or not and whether the ductility meets standard requirements or not, and ensuring that the area ratio is within a reasonable range; and finally, a more reasonable reinforcement area is obtained, and a result is output. According to the invention, the FRP rib is not used as a pressed rib, so that the stainless steel rib is configured in a pressed area, and a design method suitable for the form is provided, so that not only can the problem of corrosion of the steel bar in a marine service environment be effectively solved, but also relatively high flexural capacity and ductility can be ensured.

The invention relates to the field of concrete beam damage detection, in particular to an ultrasonic imaging method for concrete beam damage detection, which comprises the following steps: arranging a linear array comprising a plurality of ultrasonic probes on a single-side contactable surface of a to-be-detected concrete beam; preparing a multi-channel ultrasonic transmitting and receiving instrument, and connecting the multi-channel ultrasonic transmitting and receiving instrument with the sensor array and the control computer; a multi-channel ultrasonic device is used to work in a full-matrix capture mode, in the full-matrix capture mode, each probe is sequentially excited to emit ultrasonic pulses, and time domain signals received by all the probes of the array are synchronously recorded to obtain an original full-matrix data set. According to the method, strong scattering noise generated by the concrete aggregate can be inhibited through the deep convolutional neural network so as to improve the signal-to-noise ratio of the image, the sound velocity field conforming to the non-uniform characteristic of the concrete can be constructed through local sound velocity inversion and iteration based on the strong reflection points, the problems of imaging artifacts and form distortion are avoided, and the accuracy of the imaging process is improved. And the concrete damage detection precision is ensured.

The invention relates to the technical field of building steel, in particular to a steel beam and concrete beam embedded part bolting structure which comprises a concrete beam, an anchoring steel plate fixed to a concrete beam embedded part through bolts and a steel beam located on the right side of the anchoring steel plate. Supporting groups are mounted at the upper and lower ends of the connecting plate; positioning groups are mounted at the front ends of the opposite sides of the horizontal section of the connecting plate; the steel beam and the connecting plate can be accurately aligned up and down, then the connecting hole of the steel beam and the bolt hole of the connecting plate are quickly aligned, and the subsequent steel beam and connecting plate bolting construction engineering is not affected, so that the steel beam and connecting plate bolting construction efficiency is improved, and the construction period is shortened. And meanwhile, the inner sides of the upper flange and the lower flange of the bolted steel beam can be rigidly supported, so that the stability of the bolted steel beam and the connecting plate is improved.

The utility model discloses a carbon fiber cloth reinforced reinforced concrete beam, which belongs to the technical field of reinforced concrete beam reinforcement, and comprises a fixed column, and the top end of the fixed column is fixedly connected with a concrete cross beam. According to the utility model, the U-shaped carbon fiber cloth is arranged below the concrete cross beam, the U-shaped structure of the U-shaped carbon fiber cloth can ensure that the bottom of the U-shaped carbon fiber cloth is not easy to deform and the strength of the U-shaped carbon fiber cloth is ensured, and meanwhile, the U-shaped carbon fiber cloth can reinforce the bottom and the side part of the concrete cross beam at the same time, so that the reinforcing effect is ensured; in addition, triangular supporting mechanisms are installed at the corners of the fixing columns and the concrete cross beam, the lower portions of the two ends of the concrete cross beam can be supported by the side portions of the fixing columns through supporting frames on the triangular supporting mechanisms, and force borne by the two ends of the concrete cross beam can be directly transmitted to the fixing columns through the triangular supporting mechanisms; and the practicability of the carbon fiber cloth reinforced reinforced concrete beam is improved.

The invention discloses an existing concrete beam bridge crack diagnosis method based on an influence line sparse coefficient, which is characterized in that force method graph multiplication and a crack nonlinear damage function are substituted into an analytical solution for solving, and finite element simulation relates to respiration crack simulation. A nonlinear spring is adopted to simulate crack opening and perform grid division and encryption processing on the tip of the crack, bridge section rigidity change caused by the breathing crack is accurately simulated by constructing a crack rigidity damage function, and the model is introduced into an influence line analytical solution to obtain a nonlinear influence line of the cracked bridge. In combination with a sparse coefficient representation method, damage position and damage degree information is extracted from influence line data, and accurate positioning and quantitative evaluation of beam bridge section cracking are achieved; the method not only improves the accuracy and efficiency of damage identification, but also provides a reliable technical means for rapid detection and state evaluation of the existing beam bridge.

The invention discloses a method, device and equipment for determining the shear capacity of a fiber concrete beam, a medium and a product, and relates to the field of fiber concrete design. The method comprises the following steps: determining shear bearing capacity provided by regenerated glass fiber concrete and stirrups in a truss structure by utilizing static balance conditions of the truss structure according to regenerated glass fiber concrete beam information and stirrup information on the basis of a tensile strengthening effect of the regenerated glass fiber concrete; determining shear bearing capacity provided by regenerated glass fiber concrete and stirrups in the arch structure by utilizing static balance conditions of the arch structure according to the regenerated glass fiber concrete beam information and the stirrup information on the basis of the compression resistance enhancement effect of the regenerated glass fiber concrete; and determining the shear bearing capacity of the fiber concrete beam according to the two shear bearing capacities. According to the method, the calculation precision of the shear bearing capacity of the regenerated glass fiber concrete beam can be improved.

The invention provides a device and a construction method for self-prestress shear-resistant reinforcement of a concrete beam based on Fe-SMA battens. The method comprises the following steps: S1, determining the type of the concrete beam; s2, a to-be-reinforced area is pretreated; s3, reinforcing parts are installed; s4, the Fe-SMA batten is excited for the first time; and S5, carrying out secondary excitation on the Fe-SMA batten. The reinforcing device and the construction mode can be suitable for different types of concrete beams, the device is convenient to install, prestress application is convenient and efficient, rapid active prestress reinforcing is achieved by optimizing the temperature rising means of energization excitation, the tedious tensioning process is omitted, and the temperature rising time and the excitation temperature are optimized to achieve controllable damage of the adhesive layer. The invention provides a complete set of method for secondary excitation of the Fe-SMA batten, so that the service life of the reinforced concrete beam is further prolonged; reinforcing members do not need to be replaced, and maintenance cost is reduced; and the method is suitable for long-term service performance recovery and improvement of engineering structures.

The invention relates to the technical field of supporting structures, and discloses a prefabricated steel-concrete combined supporting structure and a design and construction method thereof. Comprising an outer steel pipe, an inner steel pipe, ultra-high performance concrete, an inner ring plate, an outer ring plate, high-strength bolts, stiffening ribs, steel bar connectors, embedded steel bars, joint square steel plates, U-shaped joint steel bars, cast-in-place concrete joint beam reinforcing bars, a cast-in-place concrete beam, bolt holes and joint steel bar welding spots. The outer steel pipe and the inner steel pipe are large and small circular steel pipes which are concentrically arranged, ultra-high performance concrete is poured between the outer steel pipe and the inner steel pipe to form a body of the prefabricated support, and the multiple sections of supports are connected through the inner ring plate, the outer ring plate and the high-strength bolts, the steel bar connectors, the embedded steel bars, the joint square steel plates, the joint steel bars and the cast-in-place concrete joints form connecting joints of the prefabricated supports. Compared with a traditional reinforced concrete support, the steel-concrete combined support has the higher mechanical property, is detachable, convenient to construct and environmentally friendly.

The utility model relates to the technical field of filler wall construction, and discloses a filler wall construction positioning device which comprises a laser positioning instrument body, an installation adjusting mechanism is arranged at the top of the laser positioning instrument body, a protection mechanism is arranged at the bottom of the laser positioning instrument body, and the installation adjusting mechanism comprises a strip rod. And a fixed baffle plate is fixedly mounted at the left end of the strip rod. Through the overall design of the installation adjusting mechanism, the laser positioning instrument body can be fixed to the bottom of a concrete beam, meanwhile, the position of the laser positioning instrument body can be adjusted, accurate positioning can be carried out before filling through operation of the laser positioning instrument body, and in the building process, the laser positioning instrument body can be accurately positioned. The flatness and perpendicularity of the infilled wall are rapidly judged by checking the laser beam position of the laser positioning instrument main body, the construction quality before filling is improved, the construction progress is accelerated, and material loss caused by inaccurate wall positioning and surface perpendicularity and flatness deviation is reduced.

The present application belongs to the technical field of concrete beam-column structure, and specifically relates to a beam-column structure with locally internally arranged thin-walled steel pipes and a mounting method thereof. By reasonably arranging the internally arranged steel pipes and steel bars, the effects of reducing the self weight and improving the bearing capacity of the structure are achieved. The application of the steel pipes not only enhances the bending and shearing resistance of the concrete components, but also effectively delays the generation and expansion of cracks. In addition, due to the high strength and rigidity of the steel pipes, the structure can still remain stable under high load conditions, and is particularly suitable for occasions requiring high bearing capacity, such as bridges and buildings. A new design method of internally arranged steel pipe concrete is proposed by fully considering the stress characteristics of the beam-column components. Through detailed analysis of the structural details and working principles, professional technicians can implement the present application according to the description, so as to effectively improve the safety and economy of the engineering structure. The present application is used for improving the shearing, bending and overall stability of the structure.