CN211447266U

CN211447266U - Pipe truss and prestressed inhaul cable connecting structure

Info

Publication number: CN211447266U
Application number: CN201922037254.1U
Authority: CN
Inventors: 宋生志; 张月楼; 林南昌; 吕彦雷; 付洋杨
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-09-08
Anticipated expiration: 2029-11-22

Abstract

The utility model provides a pipe truss and prestressed inhaul cable connecting structure, which comprises a pipe truss structure, prestressed inhaul cables, gusset plates and a plurality of stiffening rings arranged at intervals; the prestressed stay cable is arranged at the bottom of the main pipe of the pipe truss structure; the gusset plate is connected to a connecting node of the prestressed stay cable and the main pipe and is positioned at the lower side of the main pipe, the length direction of the gusset plate is consistent with that of the main pipe, and the first end of the prestressed stay cable is connected to the side wall of the gusset plate through an anchoring assembly; the stiffening ring is located including radial card the junction node be responsible for the arc grip block in the outside, the lower part opening of arc grip block, the open-ended both ends are connected with the grip block respectively, two the grip block centre gripping in the width direction both sides of gusset plate, the anchor subassembly sets up in adjacent the interval department of stiffening ring.

Description

Pipe truss and prestressed inhaul cable connecting structure

Technical Field

The utility model relates to a building engineering technical field, concretely relates to pipe truss and prestressing force cable connection structure.

Background

With the progress of society and the acceleration of the urbanization process of China, super-large cross steel structure engineering is increasing. At present, a cable-truss structure is mostly adopted for a super-large span steel structure system, the steel consumption of the structure system is saved, the stability is good, the rigidity is large, the bearing capacity is high, and the super-large span can be realized. The structure is simple and efficient. The cable is a prestressed inhaul cable, in order to improve structural rigidity and realize super-large span, the prestressed inhaul cable needs large pretightening force, and therefore requirements on strength, rigidity, uniformity of force transmission and the like of a connection node of the prestressed inhaul cable and the truss are high.

At present, the connection node of a prestressed inhaul cable and a pipe truss structure mostly adopts the structural form of an inner inserting plate, the specific method is that a main pipe at the position of the pipe truss node is cut open, then the inserting plate is filled in and welded to form the connection node, the method has more defects that the main pipe of the truss structure is cut open firstly and then welded to damage a steel pipe member of a main stress structure of the structure, meanwhile, the length of the general inserting plate is shorter, so that the contact area with the main truss structure is smaller, and the larger prestress easily causes the local stress concentration of the truss structure, so that the connection node position of the inhaul cable and the truss is damaged. As the node is a very important part of the whole structure, once the node is damaged, the structure is easy to collapse, so that more serious accidents are caused, and greater casualties and property losses are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipe truss and prestressing force cable connection structure, with the prestressing force cable in great concentrated power transmit the truss structural, avoid producing the problem of great stress concentration at truss node position. Meanwhile, the defects that the truss main pipe is split in the traditional method, the gusset plate is inserted into the main pipe and then welded, the truss main pipe is damaged, and the overall safety of the truss structure is affected are overcome.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

a pipe truss and prestressed stay cable connecting structure comprises a gusset plate and an anchoring assembly, wherein the gusset plate is welded and fixed at the bottom of a main pipe of a pipe truss along the axial direction of the main pipe of the pipe truss; the anchoring assembly comprises a plurality of vertical plates welded on the gusset plate at intervals, limiting holes for the prestressed inhaul cables to penetrate are formed in corresponding positions on the vertical plates, anchoring heads are anchored at the ends of the prestressed inhaul cables, and the width of each anchoring head is larger than the aperture of each limiting hole.

And the vertical plates are vertically welded in the middle of the gusset plate.

The pipe truss still includes a plurality of stiffening rings that the interval was arranged with prestressing force cable connection structure, stiffening ring including weld in the arc that the pipe truss was responsible for, the lower extreme opening of arc, the open-ended both ends of arc are connected with the riser respectively, two the riser weld respectively in the corresponding both sides of gusset plate.

The upper portions of the vertical plates are welded to the bottom of the pipe truss main pipe, and the gusset plate is an inverted triangular plate.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a pipe truss and prestressed cable connecting structure, the connecting node transmits the larger concentrated force in the prestressed cable to the truss structure through a longer gusset plate, thereby avoiding the problem of larger stress concentration at the truss node position; meanwhile, the stiffening ring is adopted to further fasten the gusset plate and the main pipe of the pipe truss structure, so that the out-of-plane stability of the gusset plate is ensured, the out-of-plane bending of the gusset plate is prevented, and the connection strength of the gusset plate and the truss main pipe is enhanced; the defects that the truss main pipe is split in the traditional method, the gusset plates are inserted into the main pipe and then welded, the truss main pipe is damaged, and the overall safety of the truss structure is affected are overcome. The utility model provides a pipe truss and prestressing force cable connection structure, the atress performance promotes simultaneously, does not influence the requirement and the pattern of building, and structural security is higher, and the construction is more high-efficient.

Drawings

Fig. 1 is the utility model discloses a tube truss and prestressed cable connection structure's spatial structure schematic diagram.

Fig. 2 is the utility model discloses a pipe truss and prestressed cable connection structure's planar structure schematic diagram.

Detailed Description

The utility model discloses a pipe truss and prestressing force cable connection structure will be explained in detail below with the accompanying drawing in the embodiment of the utility model.

As shown in fig. 1 and fig. 2, the pipe truss and prestressed cable connection structure includes a gusset plate 4 and an anchoring assembly, wherein the gusset plate 4 is welded and fixed to the bottom of a main pipe 3 of the pipe truss along the axial direction of the main pipe 3 of the pipe truss; the anchoring assembly comprises a plurality of vertical plates welded on the gusset plate 4 at intervals, limiting holes for the prestressed inhaul cables to penetrate are formed in corresponding positions on the vertical plates, anchoring heads are anchored at the ends of the prestressed inhaul cables, and the width of the anchoring heads is larger than the aperture of the limiting holes. The vertical plates are vertically welded in the middle of the gusset plate 4.

This device still includes a plurality of stiffening rings that the interval was arranged, stiffening ring including weld in the pipe truss is responsible for the arc of 3, the lower extreme opening of arc, the open-ended both ends of arc are connected with the riser respectively, two the riser weld respectively in the corresponding both sides of gusset plate.

The utility model provides a pipe truss and prestressing force cable connection structure, this connected node are through longer gusset plate 4, transmit the truss with the great concentrated power in prestressing force cable 2 structurally, avoid producing the problem of great stress concentration at truss node position. Simultaneously, the lower side pipe wall surface that gusset plate 4 and pipe truss are responsible for 3 adopts the penetration welding to weld together, then adopts stiffening ring 6 to further fasten gusset plate 4 and pipe truss are responsible for 3, ensures the outer stability in gusset plate 4 plane, prevents the outer bending in gusset plate 4 plane, strengthens the intensity that gusset plate 4 and pipe truss are responsible for 3 and are connected simultaneously. Adopt stiffening ring 6, can avoid traditional way to be responsible for 3 with the pipe truss and cut open, be responsible for 3 insidely with the gusset plate 4 insertion pipe truss and then weld, be responsible for 3 with the pipe truss and produce the damage, influence the drawback of truss structure overall safety.

The upper parts of the vertical plates are welded at the bottom of the pipe truss main pipe 3. The stability of the connection node is further improved. The gusset plate is an inverted triangle.

The diameter of the stiffening ring 6 is consistent with that of the pipe truss main pipe 3, the stiffening ring 6 is welded with the pipe surface of the main pipe 3 through a penetration fillet weld, and two vertical plates of the stiffening ring 6 are also welded together through the penetration fillet weld. The anchor assembly 5 is welded to the gusset 4 as a unit.

Anchor subassembly 5 includes the riser that the polylith interval set up, and polylith riser is connected perpendicularly in the lateral wall of gusset plate 4, and the first end of prestressing force cable 2 runs through and wears to locate the polylith riser, and the spacing hole that supplies prestressing force cable 2 to wear to establish is seted up to corresponding position on the polylith riser, and the end part cover that the first end of prestressing force cable 2 was worn out the polylith riser is equipped with the anchor head, and the width of anchor head is greater than the diameter in spacing hole.

The utility model discloses in the embodiment, riser quantity is four thick steel plates, the spacing hole that supplies prestressing force cable 2 to wear to establish is seted up to corresponding position on four thick steel plates, prestressing force cable 2's first end runs through the spacing hole of wearing to locate the polylith riser, the end part anchor that the polylith riser was worn out to prestressing force cable 2's first end has the anchor head, the width of anchor head is greater than the diameter in spacing hole, avoid prestressing force cable 2 to deviate from spacing hole, this anchor mode is more high-efficient, the construction is more swift convenient, the control that easy prestressing force size was applyed.

The arrangement trend of the limiting holes of the vertical plates is consistent with the inclination angle of the prestressed inhaul cable 2.

The anchor assembly 5 is connected to the gusset plate 4 at an intermediate position to distribute the tensile force. The upper end of the anchor assembly 5 is connected to the lower side wall of the main tube 3 at the connection node. The connection strength of the anchoring assembly 5 and the gusset plate 4 is increased, and meanwhile, partial prestress is transmitted to the main structure truss, so that the stress concentration phenomenon is avoided, and the stress is more reasonable.

The gusset plate 4 comprises two symmetrical right-angle triangular plates, the first right-angle edges of the two right-angle triangular plates are mutually abutted, and the second right-angle edges of the two right-angle triangular plates are respectively connected to the lower sides of the pipe walls of the pipe truss main pipes 3. Because the stress of the middle position of the gusset plate 4 is larger, the stress of the two sides is smaller gradually. Through the lengthened triangle-shaped gusset plate 4 in both sides, make great prestressing force in the prestressing force cable 2 through the even transmission of anchor subassembly 5 to the main structure truss, avoided stress concentration phenomenon, the atress is more reasonable, and structural security is higher.

the utility model provides a pipe truss and prestressed cable connecting structure, the connecting node transmits the larger concentrated force in the prestressed cable to the truss structure through a longer gusset plate, thereby avoiding the problem of larger stress concentration at the truss node position; meanwhile, the stiffening ring is adopted to further fasten the gusset plate and the truss main pipe, so that the out-of-plane stability of the gusset plate is ensured, the out-of-plane bending of the gusset plate is prevented, and the connection strength of the gusset plate and the truss main pipe is enhanced; the defects that the truss main pipe is split in the traditional method, the gusset plates are inserted into the main pipe and then welded, the truss main pipe is damaged, and the overall safety of the truss structure is affected are overcome. The utility model provides a pipe truss and prestressing force cable connection structure, the atress performance promotes simultaneously, does not influence the requirement and the pattern of building, and structural security is higher, and the construction is more high-efficient.

The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the above preferred embodiments, but the present invention is not limited to the above embodiments, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all the technical matters of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a pipe truss and prestressing force cable connection structure which characterized in that includes:

the gusset plate is welded and fixed at the bottom of the pipe truss main pipe along the axial direction of the pipe truss main pipe;

the anchoring assembly comprises a plurality of vertical plates welded on the gusset plate at intervals, a plurality of limiting holes for the prestressed inhaul cable to penetrate are formed in the positions, corresponding to the vertical plates, of the vertical plates, anchoring heads are anchored at the ends of the prestressed inhaul cable, and the width of each anchoring head is larger than the aperture of each limiting hole.

2. The pipe truss and prestressed stay cable connection structure according to claim 1, wherein: and the vertical plates are vertically welded in the middle of the gusset plate.

3. The pipe truss and prestressed stay cable connection structure according to claim 1, wherein: still include a plurality of stiffening rings of arranging at the interval, stiffening ring including weld in the arc that the pipe truss was responsible for, the lower extreme opening of arc, the open-ended both ends of arc are connected with the riser respectively, two the riser weld respectively in the corresponding both sides of gusset plate.

4. The pipe truss and prestressed stay cable connection structure according to claim 1, wherein: the upper parts of the vertical plates are welded at the bottom of the pipe truss main pipe.

5. The pipe truss and prestressed stay cable connection structure according to claim 1, wherein: the gusset plate is an inverted triangle.