A processing technology for a stable support type triangular truss

Abstract

The present invention relates to a processing technology for a stability support type triangular truss. The support type triangular truss includes a support, a vertical rod, an inclined web member, and an upper chord member. It is characterized in that the specific processing technology is as follows: S1: Fabrication of the support; S2: Installation of the vertical rod; S3: Installation of the inclined web member; S4: Installation of the upper chord member. By modularly processing the triangular truss, each module is independently processed and then assembled, which can quickly complete the welding and assembly of the triangular truss, improving the processing efficiency of the entire triangular truss. When ensuring the load-bearing capacity of the product, the overall stiffness of the structure is large, and the wind resistance and seismic resistance performance are good. Especially when the triangular truss is applicable to a pedestrian bridge, the problem of insufficient stiffness of a long-span overpass can be effectively avoided. The processing technology of the triangular truss is simple and suitable for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a processing technology for a stability-supported triangular truss. Background Art

[0002] Traditional steel truss bridges are widely used in highway and railway bridge construction. They are a type of bridge structure with a very strong spanning capacity. Over the past half century, my country has built a large number of steel truss bridges, and this type of bridge occupies an important position in bridge steel structures. Under the premise of today's urban bridge construction, the aesthetics of the building is obviously very important; large-span truss bridges are often difficult to meet the requirements of bridge shape because their structural form is too classic and single. At the same time, for specific construction conditions such as T-shaped intersections, island roads, and limited land acquisition and demolition in cities, conventional steel truss bridges are difficult to apply to these situations, and often require bifurcated special-shaped structures. Based on the classic steel truss bridge, a semi-through steel truss bridge with a plane shape of Y-shaped limbs and a facade shape of triangular limbs suitable for spans below 200m is proposed, that is, a steel truss modification; a better bridge type solution is provided for urban bridge construction under the above conditions. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a stable support type triangular truss processing technology, which can solve the problems of complex processing procedures and low production efficiency of general support type triangular trusses.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a processing technology of a stability support type triangular truss, the support type triangular truss includes a support, a vertical rod, a diagonal web rod and an upper chord rod; its innovation lies in: the specific processing technology is as follows:

[0005] S1: Production of support:

[0006] S11: Production of the base: Cut the bottom plate according to the structure in the drawing, and at the same time, complete the cutting of the outer plate, vertical plate, partition plate and cover plate of the closing part; vertically weld a number of vertical plates at equal intervals on the upper and lower surfaces of the partition plate, and then weld the overall structure of the vertical plate and the partition plate between a pair of outer plates parallel to each other, weld the bottom end of the outer plate after welding to the bottom plate, and finally weld the cover plate to the outer plate along the gap between the outer plates;

[0007] S12: Production of corbels: The corbels include a pair of corbel plates parallel to each other, and a supporting partition is welded between the corbel plates to connect the two corbel plates; then the pair of corbels are vertically welded to both sides of the outer plate on the base, and the upper surface of the corbels is ensured to be flush with the top of the base, and finally a side sealing plate is welded at the edge between the two parallel corbel plates;

[0008] S13: Welding of stiffening plates: Embed the cut and prepared stiffening plates between the lower surface of the bracket and the upper surface of the base plate, and weld them to the lower surface of the bracket and the upper surface of the base plate to complete the processing of the support.

[0009] S2: Installation of vertical poles: Vertically weld the bottom end of the vertical pole to the upper surface of the base, and weld stiffening plates between the two side surfaces of the vertical pole and the upper surface of the bracket to fix the vertical pole.

[0010] S3: Installation of diagonal web members: Process the bottom end of the diagonal web member into a wedge-shaped surface and the top end into a rectangular surface. Weld the bottom end of the diagonal web member to the side surface of the base, and weld a connecting block to the top end of the diagonal web member to form a horizontal plane for installing the upper chord member on the top surface of the connecting block, and the top end of the connecting block is flush with the top end of the vertical pole.

[0011] S4: Installation of upper chord members: Horizontally arrange the upper chord members at the top ends of the vertical poles, and the top ends of the upper chord members extend to the edges of the connecting blocks at the top ends of the diagonal web members; weld the lower surface of the upper chord members to the upper surface of the connecting blocks and the top ends of the vertical poles.

[0012] Furthermore, both between the upper chord members and the connecting blocks at the top ends of the diagonal web members, and between the upper chord members and the top ends of the vertical poles are full penetration welds.

[0013] Furthermore, in the S13: Welding of stiffening plates, there are three stiffening plates, and the middle stiffening plate is preferably welded first. The stiffening plates are welded using root opening welding.

[0014] The advantages of the present invention are as follows:

[0015] 1) In the present invention, by modularly processing the triangular truss, each module is independently processed and then assembled, which can quickly complete the welding and assembly of the triangular truss, improving the processing efficiency of the entire triangular truss; while ensuring the load-bearing capacity of the product, the overall stiffness of the structure is large, and the wind resistance and seismic resistance performance are good. Especially when the triangular truss is applicable to pedestrian bridges, it can effectively avoid the problem of insufficient stiffness of long-span overpasses; the processing technology of the triangular truss is simple and suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 is a flow chart of a processing technology for a stable support type triangular truss of the present invention.

[0018] Figures 2 to 6 is a formed structural state diagram of a stable support type triangular truss of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] As Figures 1 to 6 shown, a processing technology for a stability support type triangular truss. The support type triangular truss includes a support, vertical rods, diagonal web members, and upper chord members. The specific processing technology is as follows:

[0022] S1: Fabrication of the support:

[0023] S11: Fabrication of the base: Cut the base plate according to the drawing structure, and at the same time complete the cutting of the outer side plates, vertical plates, partition plates, and sealing plates for fabricating the closing members. Vertically weld a number of vertical plates at equal intervals on the upper and lower surfaces of the partition plate, and then weld the overall structure of the vertical plate and the partition plate between a pair of parallel outer side plates. Weld the bottom ends of the welded outer side plates to the base plate, and finally weld the sealing plates along the gaps between the outer side plates.

[0024] S12: Fabrication of the corbel: The corbel includes a pair of parallel corbel plates, and a support partition plate is welded between the corbel plates to connect the two corbel plates. Then vertically weld the fabricated pair of corbels on both sides of the outer side plate of the base, and ensure that the upper surface of the corbel is flush with the top end of the base. Finally, weld side sealing plates at the edge positions between the two parallel corbel plates.

[0025] S13: Welding of the stiffening plate: Insert the cut and prepared stiffening plate between the lower surface of the corbel and the upper surface of the base plate, and weld it to the lower surface of the corbel and the upper surface of the base plate to complete the fabrication of the support.

[0026] S2: Installation of the vertical rod: Vertically weld the bottom end of the vertical rod to the upper surface of the base, and weld stiffening plates between the two side surfaces of the vertical rod and the upper surface of the corbel to fix the vertical rod.

[0027] S3: Installation of the diagonal web member: Process the bottom end of the diagonal web member into a wedge-shaped surface and the top end into a rectangular surface. Weld the bottom end of the diagonal web member to the side surface of the base, and weld a connecting block to the top end of the diagonal web member. A horizontal plane for installing the upper chord member is formed on the top surface of the connecting block, and the top end of the connecting block is flush with the top end of the vertical member.

[0028] S4: Installation of the upper chord member: Horizontally arrange the upper chord member at the top end of the vertical member, and extend the top end of the upper chord member to the edge of the connecting block at the top end of the diagonal web member; Weld the lower surface of the upper chord member to the upper surface of the connecting block and the top end of the vertical member.

[0029] Full penetration welding is performed between the upper chord member and the connecting block at the top end of the diagonal web member, and between the upper chord member and the top end of the vertical member.

[0030] S13: In the welding of the stiffening plate, there are three stiffening plates, and the stiffening plate in the middle position is preferably welded first. The stiffening plate is welded with back gouging.

[0031] Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing technology for a stable support type triangular truss, the support type triangular truss comprising a support, a vertical rod, an inclined web member and an upper chord; characterized in that: The specific processing technology is as follows: S1: Fabrication of the support: S11: Fabrication of the base: Cut the bottom plate according to the drawing structure, and at the same time complete the cutting of the outer plate, vertical plate, partition plate and sealing plate of the closing piece; vertically weld several vertical plates at equal intervals on the upper and lower surfaces of the partition plate, and then weld the overall structure of the vertical plate and the partition plate between a pair of parallel outer plates, weld the bottom ends of the welded outer plates on the bottom plate, and finally weld the sealing plate along the gap between the outer plates on the outer plates; S12: Fabrication of the bracket: The bracket includes a pair of parallel bracket plates, and a support partition plate is welded between the bracket plates to connect the two bracket plates; then weld a pair of completed brackets vertically on both sides of the outer plate of the base, and ensure that the upper surface of the bracket is flush with the top end of the base, and finally weld side sealing plates at the edge positions between the two parallel bracket plates; S13: Welding of the stiffening plate: Insert the cut and prepared stiffening plate between the lower surface of the bracket and the upper surface of the bottom plate, and weld it on the lower surface of the bracket and the upper surface of the bottom plate to complete the processing of the support; S2: Installation of the vertical rod: Vertically weld the bottom end of the vertical rod on the upper surface of the base, and weld stiffening plates between the two side surfaces of the vertical rod and the upper surface of the bracket to fix the vertical rod; S3: Installation of the diagonal web member: Process the bottom end of the diagonal web member into a wedge-shaped surface and the top end into a rectangular surface, weld the bottom end of the diagonal web member on the side surface of the base, weld a connecting block at the top end of the diagonal web member, form a horizontal plane for installing the upper chord member on the top surface of the connecting block, and make the top end of the connecting block flush with the top end of the vertical rod; S4: Installation of the upper chord member: Horizontally arrange the upper chord member at the top end of the vertical rod, and extend the top end of the upper chord member to the edge of the connecting block at the top end of the diagonal web member; weld the lower surface of the upper chord member to the upper surface of the connecting block and the top end of the vertical rod.

2. The processing technology of a stable support type triangular truss according to claim 1, characterized in that: The joints between the upper chord member and the connecting block at the top end of the diagonal web member, and between the upper chord member and the top end of the vertical rod are all full penetration welds.

3. The processing technology of a stable support type triangular truss according to claim 1, characterized in that: In the above-mentioned S13: Welding of the stiffening plate, there are three stiffening plates, and the stiffening plate in the middle position is preferably welded first, and the stiffening plate is welded with back gouging.

Images