CN211317981U

CN211317981U - Containing node test bed device suitable for containing type node truss

Info

Publication number: CN211317981U
Application number: CN201922387735.5U
Authority: CN
Inventors: 李朝阳; 严兵; 陆凯
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-21
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a hold node test bed device suitable for hold node truss, the hold node truss, including truss main chord tube, truss node connected to the truss main chord tube, and truss branch tube connected to the truss node, including test bed structure, and jack located on the test bed structure; the test bed structure is a frame structure and comprises a bottom frame and a support frame arranged on the side edge of the bottom frame, the jack is arranged on the bottom frame, the truss main chord tube is arranged on the top end of the support frame, so that the truss nodes on the truss main chord tube are opposite to the bottom frame, and the truss branch tubes are in contact with the jack. The utility model provides a test problem of containing formula node truss can accomplish and draw, press the equal test.

Description

Containing node test bed device suitable for containing type node truss

Technical Field

The utility model relates to a pulling force/pressure test device, more specifically say, relate to a contain node test bench device suitable for contain formula node truss.

Background

In the development process of ocean wind power generation resources, the self-elevating wind power installation platform is mainly used for piling wind power pipe piles and also can be used for installing fans, and the realization of the main functions mainly depends on the application of special parts such as pile legs, a lifting system, a crane and the like.

Under the same conditions, the truss type metal structure is lighter than a box type structure by more than 30% (the weight of longitudinal and transverse rib plates in the box type structure is about 1/3 of the total weight of the box type structure). The tubular trusses are each of equal strength when under compression, and are most preferably trusses. In addition, the truss structure has the advantages of no need of reinforcement inside, simple manufacturing process, small wind load in outdoor environment and the like. However, in the prior art, the truss structure is not widely used, wherein the main limiting factor is that the design and manufacturing difficulty of the node (i.e. the intersection point of the main chord member and the web member) is high, and the node is easy to become the source of an accident. Failure damage and major accidents of the truss structure in the world basically start from the nodes thereof. Therefore, good nodes are key to facilitating the wide application of truss structures and exerting their advantages. At present, a contained node is a novel truss node and is used on a crane boom structure, but the use of the contained node must ensure the safety and controllability of the contained node, so that a plurality of groups of repeated tests must be carried out to verify the strength of the contained node, the contained node is a new node type, and according to the traditional joint point test, the test must be carried out on a press or a configuration oil cylinder and a hydraulic station, the equipment is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing a contain node test bench device suitable for containing formula node truss solves the test problem of containing formula node truss, can accomplish and draw, press the test such as wait.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a containing node test bed device suitable for a containing type node truss is disclosed, wherein the containing type node truss comprises a truss main chord pipe, a truss node connected to the truss main chord pipe, and a truss branch pipe connected to the truss node, and comprises a test bed structure and a jack arranged on the test bed structure;

the test bed structure is a frame structure and comprises a bottom frame and a support frame arranged on the side edge of the bottom frame, the jack is arranged on the bottom frame, the truss main chord tube is arranged on the top end of the support frame, so that the truss nodes on the truss main chord tube are opposite to the bottom frame, and the truss branch tubes are in contact with the jack.

The bottom of the jack is connected to the upper surface of the bottom frame, and the top of the jack is contacted with the bottom ends of the truss branch pipes.

The jack is located the below of underframe frame, the top of jack with the lower surface of underframe frame contacts, the bottom of jack pass through the pull rod with the bottom of truss branch pipe links to each other.

And a support oblique frame is further connected between the bottom frame and the support frame.

In foretell technical scheme, the utility model provides a contain node test bench device suitable for containing formula node truss, overall structure is small and exquisite, simple reliable, borrows present jack and accomplishes drawing, the compression test to containing formula node truss, has reduced manufacturing cost, and makes also convenient, simple to use.

Drawings

FIG. 1 is a schematic view of the containing node test bed device of the present invention in a pressure test;

fig. 2 is a schematic diagram of the state of the node test stand device during the tensile test.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Please refer to fig. 1 to 2, the present invention provides a contained node test bed device suitable for a contained node truss, which comprises a truss main chord tube 1, a truss node connected to the truss main chord tube 1, and a truss branch tube 3 connected to the truss node 2, wherein the contained node test bed device mainly comprises a test bed structure, and a jack 4 installed on the test bed structure.

The test bench structure sets up to frame construction, including underframe 5, and connect the braced frame 6 on underframe 5 side, jack 4 sets up on underframe 5.

The truss main chord 1 is welded to the top end of the support frame 6 so that the truss nodes 2 on the truss main chord 1 are placed against the bottom frame 5 and the truss branches 3 are in contact with the jacks 4. A supporting oblique frame 7 is further connected between the bottom frame 5 and the supporting frame 6 and used for enhancing the strength and rigidity of the test bed structure.

As shown in figure 1, the contained node test bed device is adopted to carry out pressure test, a jack 4 is placed on the upper surface of a bottom frame 5, a piston at the top of the jack 4 is in contact with the bottom end of a truss branch pipe 3, the piston at the top of the jack 4 is gradually lifted, pressure is transmitted to a truss node 2 through the truss branch pipe 3, meanwhile, a strain gauge and a strain flower are pasted on the truss node 2, and a test result is judged according to strain.

As shown in figure 2, the contained node test bed device is adopted to carry out a tensile test, a jack 4 is placed below a bottom frame 5, a piston at the top of the jack 4 is in contact with the lower surface of the bottom frame 5, then the bottom of the jack 4 is connected with the bottom end of a truss branch pipe 3 through a pull rod 8, the piston at the top of the jack 4 is gradually lifted, the truss branch pipe 3 is pulled through the pull rod 8, the tensile force is transmitted to a truss node 2, meanwhile, a strain gauge and a strain flower are pasted on the truss node 2, and a test result is judged according to the strain.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A contain node test bench device suitable for containing formula node truss, contain formula node truss, including truss main chord pipe, link in the truss node on truss main chord pipe, and link in the truss branch pipe on truss node, its characterized in that: the test bed comprises a test bed structure and a jack arranged on the test bed structure;

2. A contained node test stand apparatus adapted for use with a contained node truss of claim 1 wherein: the bottom of the jack is connected to the upper surface of the bottom frame, and the top of the jack is contacted with the bottom ends of the truss branch pipes.

3. A contained node test stand apparatus adapted for use with a contained node truss of claim 1 wherein: the jack is located the below of underframe frame, the top of jack with the lower surface of underframe frame contacts, the bottom of jack pass through the pull rod with the bottom of truss branch pipe links to each other.

4. A contained node test stand apparatus adapted for use with a contained node truss of claim 1 wherein: and a support oblique frame is further connected between the bottom frame and the support frame.