16 results about "Glued laminated timber" patented technology

The utility model relates to a kind of glued laminated timber combined hollow beams, belong to wood structure technical field, including two glued laminated timber boards corresponding from top to bottom, two web plates are fixedly connected between two glued laminated timber boards, two glued laminated timber boards and two web plates constitute combined hollow beam main body, connecting assembly is provided in the combined hollow beam main body;The connecting assembly includes first connecting plate and second connecting plate respectively arranged in the two sides of combined hollow beam main body, the end of first connecting plate and second connecting plate away from each other is all provided with inclined plane board, and the inside of first connecting plate and second connecting plate is inserted with two locating shafts.The glued laminated timber combined hollow beam, the quick fixing of adjacent combined hollow beam main body is realized, installation is convenient, provide convenience for construction, solve the problem that the two combined hollow beams of adjacent cannot be quickly connected and fixed in the process of using the existing glued laminated timber combined hollow beam, cause the problem of construction inconvenience.

The utility model relates to a kind of connecting structure for glued wood space truss, belong to building and engineering technical field, solve the poor problem of the anti-seismic property of the glued wood truss structure due to stress concentration at node in prior art.The utility model includes anti-seismic cylinder, the anti-seismic cylinder includes outer connecting piece, inner connecting piece and spring buffer piece, the inner connecting piece is located in the outer connecting piece, the spring buffer piece is located at the gap of the inner connecting piece and the outer connecting piece, one end of the spring buffer piece is connected with the inner cavity end portion of the outer connecting piece, and the other end is connected with the inner connecting piece.The end anchoring portion of the integrated material web member of the utility model realizes stage stress, meets the requirement of structure stress, and can realize the demand of anti-seismic performance by friction energy dissipation, elastic energy dissipation piece energy dissipation.

This invention discloses a large-span roof structure, including curved timber beams, both ends of which are fixed to a concrete foundation. Each curved timber beam comprises multiple sequentially spliced ​​curved timbers, with a splicing structure between adjacent curved timbers. A glued laminated timber beam comprises multiple sequentially butted glued laminated timbers, with adjacent glued laminated timbers connected by a butt joint. The butt joint includes a butt plate, with a first insert on one side and a second insert on the other. Adjacent glued laminated timbers are respectively provided with slots that mate with the first and second inserts. The large-span roof structure of this invention is stable and reliable, with strong load-bearing capacity and high stability. The curved timbers and glued laminated timbers can be prefabricated in a factory and assembled mechanically on-site, reducing the construction period and improving construction efficiency and installation accuracy. The splicing structure between adjacent curved timbers allows for a convenient, quick, stable, and reliable connection between them.

This utility model relates to the field of support structure technology and provides a glued laminated timber support structure, including a timber support. The timber support has slots at both the upper and lower ends on both sides. Two clamping plates are symmetrically fixed to both sides of the timber support. A positioning plate is installed between the two clamping plates on the same side. A connecting mechanism is installed at both the upper and lower ends of the timber support. The connecting mechanism includes two covering sleeves, which are respectively fitted onto both ends of the timber support. The beneficial effects of this utility model are: This utility model achieves fixation to the frame structure by setting connecting mechanisms at both the upper and lower ends of the timber support. Specifically, only slots need to be made on the timber support. During installation, the two covering sleeves of the connecting mechanism are fitted onto the outside of the timber support, and then the two covering sleeves are fixed in a circumferential manner using fastening sleeves to complete the installation. This structure eliminates the need for traditional fasteners, avoids drilling holes in the timber support, and effectively maintains the integrity of the component cross-section.

The utility model discloses a laminated wood beam column connection reinforcing structure which comprises a column body and a beam body, the top of the column body is inserted into the bottom of the beam body, reinforcing blocks are arranged on the outer side wall of the column body in an annular array mode, inserting blocks inclining downwards are arranged at the bottoms of the reinforcing blocks, adaptive inserting grooves are formed in the outer side wall of the beam body, and the tops of the reinforcing blocks extend into through grooves of the beam body. The side wall of the through groove is tightly attached. A stabilizing structure is arranged at the top of the beam body and comprises limiting blocks and a connecting plate, the limiting blocks are fixed in the through grooves through steel nails, and the connecting plate connects the limiting blocks into a whole and is embedded into the mounting groove in the top of the beam body; according to the structure, through the cooperation of the inserting blocks and the inserting grooves, the cooperation of the through grooves and the limiting blocks and the cooperation of the supporting plates and the inserting grooves, the connection stability and lateral stiffness are remarkably improved, and the structure is particularly suitable for beam-column connection reinforcement in a laminated wood structure building and has the advantages of being simple in structure, convenient to construct and high in bearing capacity.

A method of calculating building material damping, and a damped composite building material containing two structural layers sandwiching a viscoelastic interlayer, at least one of the structural layers comprising a composite material such as cross-laminated timber (CLT), CLT and concrete, glue laminated timber (glulam), or glulam and concrete, to reduce structural vibration in the building material when included in a structure.

This utility model relates to the field of strength testing technology for steel-wood structures, and discloses a strength testing device for steel-wood composite joints. The device includes a frame, with a first displacement module at the lower end of the frame, and a sliding displacement frame mounted on the outer surface of the frame. This strength testing device for steel-wood composite joints uses an angle motor to drive a switching disk to rotate, enabling rapid switching between contact seats of different shapes and equidistant distributions on its lower surface. This allows for adaptation to the contact requirements of different structures, such as glued laminated timber (GLLT) splice joints, GLLT support joints, and GLLT-steel truss web member connection joints. For example, for rebar connection joints, contact seats adapted to the rebar distribution area are selected to simulate the collaborative stress of the rebar and the wood holes. For bolt-steel insert plate connection joints, contact seats adapted to the steel insert plate plane or bolt countersunk holes are selected to ensure a tight fit at the contact interface, avoid stress transmission distortion, and improve the simulation accuracy of the actual stress state of the joint.

This utility model provides an arc-shaped glued laminated timber pressing mechanism. The arc-shaped glued laminated timber pressing mechanism includes: a main body, which includes a pressing module, a buffer module, a support frame, and a base plate. The pressing module includes a driving component mounted on the support frame. A pressing plate is provided on the output end of the driving component. A straight toothed plate is mounted on one side of the pressing plate. A fixing plate is mounted on the bottom of the base plate. A reset block is mounted on the fixing plate. A rotating rod is provided inside the reset block. A first elastic element for resetting the rotating rod is provided inside the reset block. A one-way gear is mounted on the rotating rod. A base plate guide groove is formed on the base plate. A connecting block is provided inside the base plate guide groove. A push plate is mounted on one end of the connecting block. A buffer plate is provided on the main body. The arc-shaped glued laminated timber pressing mechanism provided by this utility model improves processing efficiency.

This invention discloses a large-volume concrete testing system and its construction method. The large-volume concrete testing system includes: a foundation pit with a trapezoidal excavation profile and a concrete cushion layer poured on the bottom surface; a formwork system comprising multiple evenly spaced vertically arranged I-beams, which enclose a concrete pouring space with a square cross-section, four pieces of glued laminated timber formwork fixedly connected to the inner side of the I-beams, and multiple double-channel steel bars spaced along the length of the outer side of the I-beams; a steel reinforcement support system disposed inside the concrete pouring space; a formwork support and fixing system comprising multiple formwork supports, one end of which is fixedly connected to the double-channel steel bars, and the other end of which is fixedly connected to the slope of the foundation pit; a temperature measurement system comprising multiple temperature sensors, which are arranged at different temperature measurement points inside the concrete pouring space via sensor-attached steel bars; and a thermal insulation system fixedly disposed inside the glued laminated timber formwork.

This utility model relates to the field of glued laminated timber (GLLT) technology and provides a GLLT curved beam splicing structure, including a first curved beam and a second curved beam. A fitting groove is provided on one side of the first curved beam, and several overflow holes are provided at the lower end of the first curved beam corresponding to the fitting groove. A boss is fixedly installed on one side of the second curved beam. The first and second curved beams are fitted together. The beneficial effects of this utility model are: through the stepped fitting structure of the fitting groove and the boss, mechanical interlocking is achieved, dispersing shear force to multiple interfaces. Compared with traditional through bolt connections, this significantly improves the shear bearing capacity and connection firmness of the splicing node. The combined constraint structure of the clamping plate and the sleeve plate forms a ring clamping force through bolt pre-tightening, effectively suppressing the shaking and displacement of the beam after splicing, making the load transfer more uniform, and significantly improving structural stability. This achieves reliable load transfer for GLLT curved beam splicing, meeting the structural stability requirements of large-span buildings.

This invention relates to a post-earthquake recoverable steel plate shear wall-timber frame hybrid structure and its construction method. The structure includes a steel plate shear wall, a glued laminated timber frame, timber floor slabs, a self-resetting shear damper, shear connectors, post-tensioned unbonded prestressing tendons, and anchorages. The self-resetting shear damper and shear connectors connect the steel plate shear wall and the timber floor slabs, while the post-tensioned unbonded prestressing tendons are used in the steel plate shear wall. Compared to existing technologies, this invention combines a steel plate shear wall with a glued laminated timber frame structure system. It leverages the lateral resistance of the steel plate shear wall to help the timber structure system address the seismic challenges of high-rise development, while the combination of timber and steel further enhances the environmental friendliness and sustainability of the building structure. Furthermore, the use of numerous prefabricated components, coupled with the ease of assembly and construction of the timber structure itself, significantly increases the overall construction speed.

The invention relates to the technical field of building energy-saving structures, and discloses a fabricated steel-glued board type joint which comprises structural members and connecting units. The structural member comprises a glued wood rod piece; each connecting unit comprises a connecting steel plate, a cross-shaped stiffening plate and a fastener, and the cross-shaped stiffening plate is arranged between the connecting steel plates and fixedly connected with the connecting steel plates. The fabricated steel-glued board type joint is simple in structure and clear in force transmission mode, and the mechanical property of wood can be fully exerted under the action of external loads; compared with a traditional large-span wooden reticulated shell node form, by changing the arrangement direction of the bolts, cross grains of laminated wood near the bolts can be directly prevented from being split without additionally arranging a sleeve or a steel shoe or other additional constraints, and structure simplification is achieved; the cross-shaped stiffening plate can be directly applied to a large-span wooden reticulated shell structure building under the condition that a prestressed inhaul cable is not added, the prestressed inhaul cable can be anchored in the reserved hole of the cross-shaped stiffening plate, the structure is reinforced, and the cross-shaped stiffening plate has larger structural bearing capacity.

The invention discloses a self-tapping anchor bolt wood-concrete composite beam anti-shear joint and a construction method thereof, and relates to the technical field of constructional engineering.The joint comprises a concrete plate, laminated wood, a perforated T-shaped steel plate and a self-tapping anchor bolt, the concrete plate and the laminated wood are each provided with a groove, and a flange and a web of the perforated T-shaped steel plate are embedded into the grooves correspondingly; the flanges are detachably connected with the concrete slab through self-tapping anchor bolts, and the web is bonded with the laminated wood through intrinsic flame-retardant structural adhesive; the web plate is provided with a hourglass-shaped reducing through structure hole and a spiral flow guide groove, and the glue solution is filled in the hole to form a mechanical interlocking structure. During construction, assembly is completed through the steps of groove treatment, steel plate connection, glue solution preparation and glue injection, curing and the like, full-assembly dry-type connection is achieved, the construction efficiency is improved, the problem that the glue injection quality of a traditional joint is difficult to control is solved, excellent shear resistance, pulling resistance and fireproof performance are achieved, reinforcement of a newly-built structure and an existing structure is adapted, and the application prospect is wide.

This invention relates to a flexible construction tool head and a force-relieving mechanism. The flexible bending and grinding tool head provided by this invention includes a force-relieving mechanism, a flange seat, and a bending or grinding head. The force-relieving mechanism is rigidly fixed to the flange seat via a connector, and the bending or grinding head is rigidly connected to the flange seat. This invention significantly reduces the reaction force transmitted to the robotic arm when the hydraulic cylinder bends reinforcing bars by loading the force-relieving mechanism, and can bend ribbed reinforcing bars with a diameter of up to 32mm. The overall structure is ingeniously designed and can handle the bending design of reinforcing bars with complex curvatures and shapes, enabling the construction of pioneering architectural and installation designs based on BIM technology. The robotic arm can also operate normally when the grinding tool head uses a 300mm diameter sanding disc to grind the surfaces of curved woods such as pine, fir, and glued laminated timber, and a 150mm diameter diamond sanding disc to grind aluminum profiles and steel welded joints.

This utility model provides a worktable for a glued laminated timber pressing mechanism. The worktable has a drive and guide assembly inside, and two sets of length-adjusting components are located on the top of the drive and guide assembly. Inside each of the length-adjusting components are two sets of height-adjusting components for adjusting thickness. Each height-adjusting component includes a sliding member located inside the length-adjusting component. A screw cylinder is fixedly connected to the top of the sliding member, and a screw rod is threaded into the inside of the screw cylinder. This utility model provides a glued laminated timber pressing mechanism. By setting a drive and guide assembly on the worktable, it provides a basis for overall adjustment and can adapt to different working conditions. The two sets of length-adjusting components can flexibly adjust the length to meet different length specifications. The sliding member, screw cylinder, screw rod, and pushing component within the height-adjusting components work together to achieve thickness adjustment. The guide component cooperates with the rotating block and positioning component.

The utility model discloses a connecting structure of a laminated wood component and a steel component. The connecting structure comprises the laminated wood component, the steel component, a connecting steel plate and a plurality of pairs of steel lining pipes. A steel plate clamping groove is formed in the end part of the laminated wood component; the connecting steel plate is vertically welded to the connecting end face of the steel member and inserted into the steel plate clamping groove, and adhesive layers are arranged between the two side faces of the connecting steel plate and the groove wall faces of the two sides of the steel plate clamping groove. A supporting plate is fixed at the bottom of the connecting steel plate and forms an inverted T-shaped structure with the connecting steel plate; an annular plate is fixed to one end of each steel lining pipe, the steel lining pipes are inserted into bolt holes in the laminated wood component, the annular plates on the steel lining pipes are installed on the two side faces of the end of the laminated wood component through a plurality of self-tapping screws, and an adhesive layer is arranged between the outer wall face of each steel lining pipe and the inner wall face of the corresponding bolt hole. The connecting bolts penetrate through the bolt holes and the connecting holes in the connecting steel plate and then are fastened through the two gaskets and the nuts. The utility model can effectively prevent the connection node of the laminated wood member and the steel member from loosening.