阅读说明：本技术 一种组合式大跨距横梁结构 (Combined large-span cross beam structure ) 是由 王毅 夏龙 杨鹏飞 任鹏 王海 于 2021-07-14 设计创作，主要内容包括：本申请属于飞机结构强度试验承载横梁设计技术领域,具体涉及一种组合式大跨距横梁结构,包括：多段短距横梁,横截面呈工字型,相互对接成大跨距横梁；多对腹板连接板,每对腹板连接板对应连接在一处两段短距横梁腹板对接部位的两侧；多对上缘条连接板,每对上缘条连接板对应连接在一对腹板连接板上,以及连接在对应两段短距横梁上缘条的对接部位；多对下缘条连接板,每对下缘条连接板对应连接在一对腹板连接板上,以及连接在对应两段短距横梁下缘条的对接部位；多对加强筋板,每对加强筋板对应连接在一对腹板连接板上,以及与对应的一对上缘条连接板、下缘条连接板连接。(The application belongs to the technical field of the design of an aircraft structural strength test bearing beam, and particularly relates to a combined type large-span beam structure, which comprises: the cross sections of the multiple sections of short-distance cross beams are I-shaped and are mutually butted to form a large-span cross beam; each pair of web connecting plates is correspondingly connected to two sides of the butt joint part of the two short-distance beam webs; a plurality of pairs of upper edge strip connecting plates, wherein each pair of upper edge strip connecting plates are correspondingly connected to a pair of web connecting plates and connected to the butt joint part of the upper edge strips of the corresponding two sections of short-distance cross beams; each pair of lower edge strip connecting plates are correspondingly connected to the pair of web connecting plates and the butt joint parts of the lower edge strips of the two corresponding short-distance cross beams; and each pair of reinforcing rib plates are correspondingly connected to the pair of web connecting plates and connected with the corresponding pair of upper edge strip connecting plates and lower edge strip connecting plates.)

1. A modular large-span beam structure, comprising:

the cross section of the multi-section short-distance beam (1) is I-shaped and is butted into a large-span beam;

the web connecting plates (2) in each pair are correspondingly connected to two sides of the web abutting part of the two sections of short-distance cross beams (1);

a plurality of pairs of upper edge strip connecting plates (3), wherein each pair of upper edge strip connecting plates (3) is correspondingly connected to one pair of web connecting plates (2) and the butt joint part of the upper edge strip of the corresponding two sections of short-distance cross beams (1);

the lower edge strip connecting plates (4) in each pair are correspondingly connected to the web connecting plates (2) in each pair and connected to the butt joint parts of the lower edge strips of the two corresponding short-distance cross beams (1);

and each pair of reinforcing rib plates (5) are correspondingly connected to the pair of web connecting plates (2) and connected with the corresponding pair of upper edge strip connecting plates (3) and lower edge strip connecting plates (4).

2. The modular large-span beam structure of claim 1,

two sides of the web plate of each section of the short-distance cross beam (1) are connected with a plurality of pairs of web plate reinforcing ribs (6);

each pair of web reinforcing ribs (6) is connected with the upper edge strip and the lower edge strip of the corresponding short-distance cross beam (1).

3. The modular large-span beam structure of claim 1,

further comprising:

and each pair of upper edge strip reinforcing plates (7) is correspondingly arranged opposite to the pair of upper edge strip connecting plates (3) and is connected to the outer side of the butt joint part of the upper edge strips of the corresponding two sections of short-distance cross beams (1).

4. The modular large-span beam structure of claim 1,

further comprising:

the small cross beam (8) is arranged opposite to the large-span cross beam;

one end of each small oblique beam (9) is correspondingly connected to one end of the small cross beam (8), and the other end of each small oblique beam (9) is correspondingly connected to the upper edge strip at one end of the large-span cross beam;

and one end of each vertical supporting beam (10) is connected to the upper edge strip of the large-span cross beam, and the other end of each vertical supporting beam (10) is connected to the small cross beam (8) or one small oblique beam (9).

5. The modular large-span beam structure of claim 1,

further comprising:

the connecting strip (11) is connected to the upper edge strip of the large-span cross beam and is connected with the vertical supporting beam (10) towards one end of the large-span cross beam and is connected with the small inclined beam (9) towards one end of the large-span cross beam.

6. The modular large-span beam structure of claim 5,

the connecting strip (11) is formed by butt joint of multiple sections, and each section of the connecting strip (11) is correspondingly connected to the upper edge strip of the short-distance beam (1).

7. The modular large-span beam structure of claim 4,

further comprising:

a plurality of slant supporting beam (12), every slant supporting beam (12) correspond and are located between two adjacent vertical supporting beam (10), and one end is connected one and is corresponded vertical supporting beam (10) orientation the one end of big span crossbeam top edge, the other end is connected and is corresponded vertical supporting beam (10) dorsad the one end of big span crossbeam top edge.

Technical Field

The application belongs to the technical field of design of bearing beams for aircraft structural strength tests, and particularly relates to a combined type large-span beam structure.

Background

In the aircraft structure strength test, the situation that the cross beam is used as a bearing structure exists, the strength test of a large-span aircraft structure requires that the cross beam has a large span, and the cross beam applied to the aircraft structure strength test currently has the following defects:

1) the large-span beam has longer length and is difficult to produce, transport and assemble;

2) the large-span cross beam is of an equal-section structure, requirements for strength, rigidity and weight cannot be met, the large-span cross beam has large mass under the condition that the design has high strength and rigidity, and the strength and the rigidity cannot meet the requirements under the condition that the design mass is relatively light.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.

Disclosure of Invention

It is an object of the present application to provide a modular large span beam structure that overcomes or mitigates at least one of the technical disadvantages known to exist.

The technical scheme of the application is as follows:

a modular large-span beam structure comprising:

the cross sections of the multiple sections of short-distance cross beams are I-shaped and are mutually butted to form a large-span cross beam;

each pair of web connecting plates is correspondingly connected to two sides of the butt joint part of the two short-distance beam webs;

a plurality of pairs of upper edge strip connecting plates, wherein each pair of upper edge strip connecting plates are correspondingly connected to a pair of web connecting plates and connected to the butt joint part of the upper edge strips of the corresponding two sections of short-distance cross beams;

each pair of lower edge strip connecting plates are correspondingly connected to the pair of web connecting plates and the butt joint parts of the lower edge strips of the two corresponding short-distance cross beams;

and each pair of reinforcing rib plates are correspondingly connected to the pair of web connecting plates and connected with the corresponding pair of upper edge strip connecting plates and lower edge strip connecting plates.

According to at least one embodiment of the application, in the combined type large-span crossbeam structure, two sides of each section of short-span crossbeam web are connected with a plurality of pairs of web reinforcing ribs;

each pair of web reinforcing ribs is connected with the upper edge strip and the lower edge strip of the corresponding section of short-distance beam.

According to at least one embodiment of the present application, the combined large-span beam structure further includes:

and each pair of upper edge strip reinforcing plates are correspondingly arranged opposite to the pair of upper edge strip connecting plates and connected to the outer sides of the butt joint parts of the upper edge strips of the corresponding two sections of short-distance cross beams.

According to at least one embodiment of the present application, the combined large-span beam structure further includes:

the small cross beam is arranged opposite to the large-span cross beam;

one end of each small oblique beam is correspondingly connected with one end of the small cross beam, and the other end of each small oblique beam is correspondingly connected with the upper edge strip at one end of the large-span cross beam;

and one end of each vertical supporting beam is connected to the upper edge strip of the large-span cross beam, and the other end of each vertical supporting beam is connected to the small cross beam or one small oblique beam.

According to at least one embodiment of the present application, the combined large-span beam structure further includes:

and the connecting strip is connected to the upper edge strip of the large-span cross beam, connected with one end of each vertical supporting beam facing the large-span cross beam and connected with one ends of the two small oblique beams facing the large-span cross beam.

According to at least one embodiment of the present application, in the above-mentioned combined large-span beam structure, the connecting strip is formed by butting multiple sections, and each section of the connecting strip is correspondingly connected to the upper edge strip of one section of the short-span beam.

According to at least one embodiment of the present application, the combined large-span beam structure further includes:

and each inclined supporting beam is correspondingly positioned between two adjacent vertical supporting beams, one end of each inclined supporting beam is connected with one end of each corresponding vertical supporting beam facing the upper edge strip of the large-span cross beam, and the other end of each inclined supporting beam is connected with one end of each corresponding vertical supporting beam back to the upper edge strip of the large-span cross beam.

Drawings

Fig. 1 is a schematic view of a combined large-span beam structure provided in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of a modular large-span beam structure provided in an embodiment of the present application;

FIG. 3 is a schematic partial structural view of a combined large-span beam structure provided in an embodiment of the present application;

wherein:

1-short-distance beam; 2-web connection plate; 3-upper edge strip connecting plate; 4-lower edge strip connecting plate; 5-reinforcing rib plate; 6-web reinforcing ribs; 7-upper edge strip reinforcement plate; 8-a small cross beam; 9-small oblique beam; 10-vertical supporting beams; 11-a connecting strip; 12-oblique supporting beam.

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1 to 3.

A modular large-span beam structure comprising:

the cross section of the multi-section short-distance beam 1 is I-shaped and is butted into a large-span beam;

a plurality of pairs of web connecting plates 2, wherein each pair of web connecting plates 2 is correspondingly connected to two sides of the web butting part of two sections of short-distance cross beams 1;

a plurality of pairs of upper edge strip connecting plates 3, wherein each pair of upper edge strip connecting plates 3 is correspondingly connected to one pair of web connecting plates 2 and the butt joint part of the upper edge strips of the corresponding two sections of short-distance cross beams 1;

a plurality of pairs of lower edge strip connecting plates 4, wherein each pair of lower edge strip connecting plates 4 is correspondingly connected to one pair of web connecting plates 2 and the butt joint part of the lower edge strips of the corresponding two sections of short-distance cross beams 1;

and each pair of reinforcing rib plates 5 are correspondingly connected to the pair of web connecting plates 2 and the corresponding pair of upper edge strip connecting plates 3 and lower edge strip connecting plates 4.

For the combined type large-span crossbeam structure disclosed in the above embodiment, those skilled in the art can understand that the large-span crossbeam is designed to be formed by butting multiple sections of short-distance crossbeams 1, so that the combined type large-span crossbeam structure is convenient to produce, transport and assemble, and can be conveniently used as a bearing structure for a large-span airplane structure strength test.

For the combined large-span crossbeam structure disclosed in the above embodiments, it can be further understood by those skilled in the art that the length of the large-span crossbeam is mainly determined according to the wingspan length of the aircraft, the height and the width thereof can be determined according to the test load, so that the bending-resistant section coefficient of the large-span crossbeam meets the test requirement, the large-span crossbeam is specifically formed by butting several sections of short-span crossbeams 1, and the large-span crossbeam structure can be determined according to the specific practice by related technicians when the technical scheme disclosed in the application is applied.

For the combined large-span beam structure disclosed in the above embodiment, it can be further understood by those skilled in the art that two sides of the web abutting part of the two short-distance beams 1 are connected by a pair of web connecting plates 2, the upper edge strip abutting part is connected by a pair of upper edge strip connecting plates 3 located at two sides of the web, the lower edge strip abutting part is connected by a pair of lower edge strip connecting plates 4 located at two sides of the web, and the web connecting plates 2 are connected together with the corresponding upper edge strip connecting plates 3 and lower edge strip connecting plates 4 by reinforcing rib plates 5, so that the rigidity and strength of the abutting part of the two short-distance beams 1 can be ensured while the two short-distance beams 1 are abutted.

In some optional embodiments, in the combined large-span beam structure, two sides of the web of each short-span beam 1 are connected with a plurality of pairs of web reinforcing ribs 6;

each pair of web reinforcing ribs 6 is connected with the upper edge strip and the lower edge strip of the corresponding section of short-distance beam 1 so as to enhance the rigidity and the strength of the large-span beam.

In some optional embodiments, the combined large-span beam structure further includes:

and a plurality of pairs of upper edge strip reinforcing plates 7, wherein each pair of upper edge strip reinforcing plates 7 is correspondingly arranged opposite to one pair of upper edge strip connecting plates 3 and is connected to the outer side of the butt joint part of the upper edge strips of the two corresponding short-distance cross beams 1 so as to enhance the tensile capacity of the butt joint part of the upper edge strips of the two corresponding short-distance cross beams 1 and effectively compensate the rigidity and the strength of the butt joint part of the upper edge strips of the two corresponding short-distance cross beams 1 by matching with the corresponding upper edge strip connecting plates 3.

In some optional embodiments, the combined large-span beam structure further includes:

the small cross beam 8 is arranged opposite to the large-span cross beam;

one end of each small oblique beam 9 is correspondingly connected with one end of the small cross beam 8, and the other end of each small oblique beam 9 is correspondingly connected with the upper edge strip at one end of the large-span cross beam;

and one end of each vertical supporting beam 10 is connected to the upper edge strip of the large-span cross beam, and the other end of each vertical supporting beam 10 is connected to the small cross beam 8 or one small oblique beam 9.

For the combined type large-span crossbeam structure disclosed by the embodiment, a person skilled in the art can understand that when a large load test is carried out, the structure consisting of the small crossbeam 8, the small oblique beam 9 and the vertical supporting beam 10 can be connected to the large-span crossbeam so as to enhance the rigidity and the strength of the large-span crossbeam, the overall quality cannot be excessively increased, in addition, the structure is stable, the large-span crossbeam can become a constant-bending-moment beam, and the accuracy of the airplane structural strength test is ensured.

For the combined type large-span beam structure disclosed in the above embodiment, it can be further understood by those skilled in the art that, in order to obtain a stable supporting effect, two vertical supporting beams 10 may be designed, one end of each vertical supporting beam 10 facing away from the large-span beam is connected to both ends of the corresponding small beam 8, one end of each vertical supporting beam 10 facing away from the large-span beam is connected to the middle of the corresponding small beam 8, and in addition, one end of each vertical supporting beam 10 facing away from the large-span beam is connected to the supporting portion of each small oblique beam 9.

In some optional embodiments, the combined large-span beam structure further includes:

and the connecting strip 11 is connected to the upper edge strip of the large-span cross beam, is connected with one end of each vertical supporting beam 10 facing the large-span cross beam, and is connected with one end of each small oblique beam 9 facing the large-span cross beam, and can be connected through the matching of a single-double-lug structure.

In some alternative embodiments, in the above-mentioned combined large-span beam structure, the connecting bar 11 is formed by butt-jointing multiple sections, and each section of the connecting bar 11 is correspondingly connected to the upper edge of one section of the short-span beam 1.

In some optional embodiments, the combined large-span beam structure further includes:

a plurality of slant supporting beam 12, every slant supporting beam 12 corresponds and is located between two adjacent vertical supporting beam 10, and one end is connected one and is corresponded the one end that vertical supporting beam 10 faced big span crossbeam top bead, and the other end is connected one end that another corresponds vertical supporting beam 10 and is dorsad big span crossbeam top bead.

For the combined type large-span beam structure disclosed in the above embodiments, it can be understood by those skilled in the art that the oblique support beams 12, the small beams 8, the small oblique beams 9, the vertical support beams 10, and the large-span beam are designed to form a triangular structure, which has better stability, and in addition, the oblique support beams 12 can be designed to be substantially V-shaped.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.