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6results about "Truss-type bridge" patented technology
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Construction method for accurate positioning of main pier support installation of large-span steel truss arch bridge
This invention discloses a precise positioning construction method for the installation of main pier supports of long-span steel truss arch bridges, comprising the following steps: Step S1: Pouring the support pad stone and reserving a post-cast layer of a predetermined thickness; Step S2: Laying a temporary steel pad plate of a predetermined thickness on the support pad stone; Step S3: Setting up vertical and horizontal adjustment devices on the support pad stone; Step S4: Hoisting the support onto the temporary steel pad plate; Step S5: Adjusting the vertical elevation of the support using the vertical adjustment device, while simultaneously removing the temporary steel pad plate, leaving a gap between the support and the support pad stone; Step S6: Adjusting the horizontal position of the support using the horizontal adjustment device; Step S7: Connecting the support and the support pad stone together with anchor bolts, and then pouring the post-cast layer of the pad stone; Step S8: Lifting the steel beam joint and supporting the support onto the support pad stone, completing the support installation. This invention has advantages such as simple process, reliable quality, time saving, good economy, and good application prospects.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD +1
Airfoil multi-element steel structural system and method of installation thereof
The application discloses a wing-shaped multi-element steel structure system and a mounting method thereof, which comprises a frame system arranged on a ground foundation; a parallel load wing type large-span cantilever truss structure system arranged outside the frame system in a wing shape; and a Chinese character type shaped steel large-span special-shaped shell structure roof truss arranged between the frame system and the parallel load wing type large-span cantilever truss structure system and connected with the frame system and the parallel load wing type large-span cantilever truss structure system. The frame, the shell structure, the load wing type truss structure and other multi-element structures are combined to form a new structure with a large-span, open space and a unique shape, to provide a stable vertical support and a lateral force resisting system, the shell structure has a large space function, and compared with the truss structure, the shell structure has a small steel consumption and a low cost, and the load wing type truss structure has a unique shape similar to a wing and an eagle wing, can efficiently realize a huge column-free cantilever space and meets the demand of modern buildings for a large-span, open space and a free form.
Owner:CHINA CONSTR SECOND BUREAU INSTALLATION ENG CO LTD +2
A thin steel bottom plate steel web u-shaped beam made of uhp concrete and a method for calculating the bending bearing capacity
PendingCN122257329Aincrease stiffnessreduce distortionGeometric CADTruss-type bridgeShaped beamClassical mechanics
The application discloses a kind of thin steel bottom plate steel web UHPC combined I-beam and bending bearing capacity calculation method, including UHPC upper flange, UHPC lower flange, steel web, further including PBL shear key, thin steel bottom plate;PBL shear key is arranged on UHPC lower flange, and thin steel bottom plate is arranged above PBL shear key;The lower end of steel web is welded and fixed with the contact part of thin steel bottom plate;The connection strength of steel web and UHPC lower flange is strengthened by PBL shear key and thin steel bottom plate.Thin steel bottom plate and steel web, PBL shear key as a whole component, reliably connect with UHPC upper flange, UHPC lower flange, form whole, jointly resist external force, compared with traditional UHPC steel web I-beam, the thin steel bottom plate steel web UHPC combined I-beam proposed in the application has the advantages of large overall rigidity, small deformation, large bending bearing capacity etc..
Owner:LANZHOU JIAOTONG UNIV +1
Double-layer steel truss bridge drag construction technology of continuous double-layer cast-in-situ box girder
This invention provides a towing construction process for a double-layer steel truss bridge with sequentially connected double-layer cast-in-place box girders. The steps are as follows: construct the bridge's pile foundations and abutments, construct the piers, erect assembly supports, hoist the guide beam, and assemble the steel truss section; first, hoist the guide beam and the assembled steel truss section, then perform the first towing; after completion, hoist the remaining sections for subsequent towing construction; after the first towing is completed, construct the unaffected cast-in-place box girder section on the left; after the steel truss reaches the assembly supports above the fourth pier, the guide beam can be removed, and the unaffected cast-in-place box girder section on the right can be constructed; after the overall towing is completed, construct the upper piers, construct the auxiliary structures, and dismantle the assembly supports. This overcomes the limitations of existing technologies where the steel truss cannot be installed on the piers at the junction of the truss section and the cast-in-place box girder section. Furthermore, by constructing the cast-in-place box girder during the towing and assembly process, the construction period is significantly shortened, and traffic control time is reduced.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
A temporary reinforcement method for steel truss girder segments
ActiveCN116732909BAvoid blind reinforcementMake full use of carrying capacityTruss-type bridgeBridge erection/assemblyArchitectural engineeringSupport point
Owner:CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE CO LTD
A new type of steel structure connection node
This utility model relates to the technical field of steel structure components, and discloses a novel steel structure connection node, including diagonal web members, vertical web members, and chord members. A sealing plate perpendicular to the diagonal web member is welded to its end. A first connecting plate perpendicular to the sealing plate is provided on the outer side of the sealing plate, penetrating the sealing plate and inserted into the diagonal web member. The side of the sealing plate away from the diagonal web member is welded to the first connecting plate, and the side of the first connecting plate inserted into the diagonal web member is welded to the web plate of the diagonal web member. An end plate perpendicular to the vertical web member is welded to its end. A second connecting plate is welded between the end plate and the vertical web member, perpendicular to the end plate. The end plate is bolted to the chord member, and the second connecting plate is bolted to the first connecting plate. This connection node uses bolted connections, eliminating the need for on-site welding. The node design is simplified, facilitating transportation and on-site construction, and installation is easy. The components undergo hot-dip galvanizing without dead corners, resulting in high-quality rust prevention and a long service life.
Owner:CHINA LIGHT IND INT ENG CO LTD