Large-span composite structure
By rationally arranging structural reinforcement bars and setting extensions in large-span composite structures, the problems of large space occupation and inconvenient construction of large-span reinforced concrete structures are solved, achieving efficient structural load-bearing capacity and construction safety, and meeting the complex stress requirements of large-span buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-04-10
AI Technical Summary
Existing large-span reinforced concrete structures occupy a lot of space, have low construction safety, and are complicated and inconvenient to construct.
The structure adopts a large-span composite structure, including a first column, a first crossbeam, and a second crossbeam. By rationally arranging structural reinforcement bars inside the first crossbeam and connecting them with fixing bars and tie bars, combined with the design of the extension section, an integral structure is formed, which enhances the load-bearing capacity and ease of construction.
It can bear large loads with smaller cross-sectional dimensions, improve construction safety and efficiency, enhance structural stiffness and seismic performance, and meet the complex stress requirements of large-span buildings.
Smart Images
Figure CN224106601U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building structure technical field, concretely relates to a large-span composite structure. BACKGROUND
[0002] The reinforced concrete structure is composed of steel bars and concrete. The concrete has excellent compression resistance, and the steel bars have good tensile resistance. The two work together to make the reinforced concrete structure have high bearing capacity and effectively support the building dead weight and various types of use load.
[0003] In the building with the reinforced concrete structure as the main structure, it is often necessary to realize large span to meet the special functional requirements. For example, in the report hall, the large-span design can avoid the column blocking the sight line and provide a good view for the audience; in the large exhibition hall, the large-span design can create an open column-free space to facilitate the display of exhibits. However, how to optimize the design to realize the space requirement of large span has always been a difficulty in engineering practice.
[0004] In the related art, the well-type floor structure or the post-tensioned prestressed beam is often used to realize the large span. The well-type floor structure realizes the large span by increasing the beam column section and increasing the reinforcement. However, the increased beam column occupies more space, and after the beam section is increased, the concentrated line load of the beam is large. In addition, the number of steel bars is large, which affects the safety and quality of construction. The post-tensioning method involves multiple links such as reserved hole, threading, tensioning, and grouting, and has complex construction process and long construction period. In addition, the hole grouting is prone to the problem of non-dense grouting, and the construction is inconvenient. UTILITY MODEL CONTENT
[0005] Therefore, the utility model provides a large-span composite structure to solve the defects of the existing large-span structure, such as occupying more space, low construction safety, or complex construction process and inconvenient construction.
[0006] The utility model provides a kind of large-span composite structure, comprising: first column, at least two the first column is spaced apart along the first direction arrangement;First crossbeam is connected with at least two the first column, and the first crossbeam has first skeleton beam, first structural tendon and first waist muscle;The first skeleton beam, first structural tendon and first waist muscle are all along the length direction of first crossbeam and extend setting;The first waist muscle is spaced apart with the first skeleton beam, and first structural tendon is fixed with the first skeleton beam by first fixed muscle;The first crossbeam further has first tie, and the both ends of the first tie are connected with the first waist muscle and first structural tendon respectively;Second crossbeam, one end is connected with the first column, and the other end is connected with second column;The second crossbeam is collinear with the first crossbeam;The connecting structure of the first column and first crossbeam is defined as cross part;The connecting structure of the second crossbeam and second column is defined as extension part, and at least two the extension part is connected on the opposite side of the cross part along the first direction respectively.
[0007] In an alternative embodiment, the length of the cross part in the first direction is D, where 0
[0008] In an alternative embodiment, the cross part is provided with a plurality of, and a plurality of the cross part is spaced apart along the second direction;The extension part is provided with a plurality of, and a plurality of the extension part is connected with a plurality of the cross part respectively;Adjacent cross part is connected by first vertical beam and first secondary beam, and the both ends of the first vertical beam are connected with first column respectively, and the both ends of the first secondary beam are connected with first crossbeam respectively;Adjacent extension part is connected by second vertical beam and second secondary beam, and the both ends of the second vertical beam are connected with second column respectively, and the both ends of the second secondary beam are connected with second crossbeam respectively;Wherein, the second direction is perpendicular to the first direction.
[0009] In an alternative embodiment, the cross-sectional shape of the first skeleton beam is H-shaped, and the first skeleton beam has a first web;The first structural tendon is fixed with the first web by the first fixed muscle, and the both ends of the first fixed muscle are fixed with the first structural tendon and the first web respectively.
[0010] In an alternative embodiment, the first crossbeam further has first stirrup and first longitudinal muscle, and the first longitudinal muscle is arranged along the extension direction of the first crossbeam, and the first stirrup is connected with the first longitudinal muscle.
[0011] In an alternative embodiment, the first column has a bone column, a main muscle and a second stirrup;The bone column and the main muscle are both arranged along the height direction of the first column;The second stirrup is connected with the main muscle.
[0012] In an alternative embodiment, the first pull bar is provided with a sleeve joint at each end, which is connected to the first waist bar or the first structural bar; the first pull bar is staggered with the first fixed bar.
[0013] In an alternative embodiment, a plurality of the first structural bars are fixed on opposite sides of the first web plate; a plurality of the first waist bars are arranged on opposite sides of the first web plate, and the first waist bars and the first structural bars on the same side of the first web plate are in one-to-one correspondence; the first pull bar is provided with a plurality of first pull bars, which are connected to the corresponding first structural bars and first waist bars.
[0014] In an alternative embodiment, the second cross beam has a second beam, a second structural bar and a second waist bar; the second beam, the second structural bar and the second waist bar are arranged along the length direction of the second cross beam; the second waist bar is arranged in a spaced manner with the second beam, and the first structural bar is fixed to the first framework by means of the second fixed bar; the second cross beam further has a second pull bar, the two ends of the second pull bar are connected to the second waist bar and the second structural bar; the cross-sectional shape of the second beam is H-shaped, and the second beam has a second web plate; the second structural bar is fixed to the second web plate by means of the second fixed bar, and the two ends of the second fixed bar are fixed to the second structural bar and the second web plate; the second cross beam further has a third stirrup and a third longitudinal bar, the third longitudinal bar is arranged along the extension direction of the second cross beam, and the third stirrup is connected to the third longitudinal bar.
[0015] Beneficial effects: By arranging the first structural bar inside the first cross beam, the first structural bar is welded and fixed to the first beam by means of the first fixed bar, and at the same time, the first structural bar and the first waist bar are connected by the first pull bar, so that the internal parts of the first cross beam are connected as a whole, greatly improving the carrying capacity of the first cross beam, while the cross-sectional size of the first cross beam remains unchanged, preventing the occupation of a large amount of building space, meeting the construction needs of large-span buildings, and having fewer steel bars and higher construction safety; By arranging the extension part on both sides of the large-span composite structure, the carrying capacity of the whole structure can be improved, the construction process is simple and convenient, the beam body has stable stress performance, and the practicality is strong.
[0016] Beneficial effects: The large-span composite structure provided in the embodiment can bear larger vertical and horizontal loads under smaller cross-sectional size, providing reliable structural support for buildings and meeting the complex stress requirements of large-span.
[0017] Beneficial effects: By arranging the extension part, the structural stiffness is effectively improved, the deformation is effectively controlled, the stability is maintained, the seismic performance is strengthened, energy is consumed during earthquakes, the structural safety is ensured, and the good realization of large-span space function is beneficial. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 It is a schematic view of the large-span combined structure of the present application.
[0020] Figure 2 It is a schematic view of the large-span combined structure of the present application Figure 1 It is a sectional view of the first cross beam along the A-A direction.
[0021] Figure 3 It is a sectional view of the first cross beam along the A-A direction. Figure 2 It is an enlarged schematic view of the C position.
[0022] Figure 4 It is a sectional view of the second cross beam along the B-B direction. Figure 1 It is an enlarged schematic view of the C position.
[0023] Figure 5 It is a sectional view of the second cross beam along the B-B direction. Figure 4 It is an enlarged schematic view of the E position.
[0024] Figure 6 It is a sectional view of the first column of the present application.
[0025] Explanation of reference signs:
[0026] 1, first column; 11, bone column; 12, main reinforcement; 13, second stirrup;
[0027] 2, first cross beam; 21, first bone beam; 211, first web; 22, first structural reinforcement; 23, first waist reinforcement; 24, first fixed reinforcement; 25, first tension reinforcement; 251, sleeve joint part; 26, first stirrup; 27, first longitudinal reinforcement;
[0028] 3, second cross beam; 31, second bone beam; 311, second web; 32, second structural reinforcement; 33, second waist reinforcement; 34, second fixed reinforcement; 35, second tension reinforcement; 36, third stirrup; 37, third longitudinal reinforcement;
[0029] 4, second column;
[0030] 5, cross-span part; 51, first vertical beam; 52, first beam;
[0031] 6, extension part; 61, second vertical beam; 62, second beam. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0033] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.
[0036] The embodiments of the present application will be described below in combination with Figures 1 to 6 .
[0037] According to the embodiment of the utility model, provide a kind of large-span composite structure, comprising: first column 1, at least two first column 1 is spaced apart along the first direction;First crossbeam 2 is connected with at least two first column 1, and the first crossbeam 2 has first skeleton beam 21, first structural muscle 22 and first waist muscle 23;The first skeleton beam 21, first structural muscle 22 and first waist muscle 23 are all arranged along the length direction of first crossbeam 2;The first waist muscle 23 is spaced apart from the first skeleton beam 21, and first structural muscle 22 is fixed to the first skeleton beam 21 by first fixed muscle 24;The first crossbeam 2 also has first tension muscle 25, and the two ends of the first tension muscle 25 are respectively connected with the first waist muscle 23 and first structural muscle 22;Second crossbeam 3, one end is connected with the first column 1, and the other end is connected with second column 4;The second crossbeam 3 is collinear with the first crossbeam 2;The connecting structure of the first column 1 and the first crossbeam 2 is defined as cross part 5;The connecting structure of the second crossbeam 3 and the second column 4 is defined as extension part 6, and at least two extension parts 6 are respectively connected to the opposite sides of the cross part 5 along the first direction.
[0038] Among them, the first column 1 is a steel reinforced concrete frame column, which refers to a composite column formed by adding a shaped steel (such as H-shaped steel, I-shaped steel) to a reinforced concrete column; the first crossbeam 2 and the second crossbeam 3 are both steel reinforced concrete frame beams, which refer to composite beams formed by adding shaped steel (such as H-shaped steel, I-shaped steel) to reinforced concrete columns.
[0039] Specifically, based on the span of the large-span composite structure, the cross part 5 is arranged; in this embodiment, two first columns 1 are spaced apart along the first direction, and the maximum value of the spacing distance is 23.1 meters, so that the maximum span D of the large-span composite structure reaches 23.1 meters; the first crossbeam 2 is arranged between the two first columns 1, and the shaped steel of the first crossbeam 2 is welded and fixed with the shaped steel of the first column 1; the first crossbeam 2 is arranged along the first direction; the extension part 6 is arranged on both sides of the cross part 5 along the first direction, and the extension part 6 includes the second crossbeam 3 and the second column 4, which plays a role in improving the bearing capacity of the overall structure; one end of the second crossbeam 3 of the extension part 6 is connected with the first column 1, and the second crossbeam 3 is arranged along the first direction and is collinear with the first crossbeam 2; the other end of the second column 4 is connected with the second crossbeam 3.
[0040] Specifically, the first crossbeam 2 is internally provided with the first structural muscle 22, the first structural muscle 22 is welded and fixed with the first skeleton beam 21 by means of the first fixed muscle 24, i.e. short steel, and the first structural muscle 22 is also connected with the first waist muscle 23 by means of the first tension muscle 25, so that the internal parts of the first crossbeam 2 are connected as a whole, the bearing capacity of the first crossbeam 2 is greatly improved without affecting the cross-sectional size of the first crossbeam 2, the number of steel bars is small, and the construction safety is relatively high.
[0041] The large-span combined structure provided by the embodiment can bear larger vertical and horizontal loads under smaller cross-sectional size, provide reliable structural support for buildings, and meet the complex stress requirements of large span.
[0042] The large-span combined structure provided by the embodiment can bear larger vertical and horizontal loads under smaller cross-sectional size, provide reliable structural support for buildings, and meet the complex stress requirements of large span.
[0043] The large-span combined structure provided by the embodiment can bear larger vertical and horizontal loads under smaller cross-sectional size, provide reliable structural support for buildings, and meet the complex stress requirements of large span.
[0044] In some embodiments, in combination with Figure 1 As shown in the figure, the length of the transverse part 5 in the first direction is D, where 0 < D ≤ 23.1 m.
[0045] Specifically, the length D is the span distance of the transverse part 5 or the large-span combined structure. In the embodiment, the maximum span of the large-span combined structure reaches 23.1 m, and the actual span size is determined according to the building requirements. Specifically, it can be, but is not limited to, 20 m, 21 m, 22 m.
[0046] In some embodiments, in combination with Figure 1 As shown in the figure, the transverse part 5 is provided with a plurality of transverse parts 5, and the plurality of transverse parts 5 are arranged at intervals along the second direction; the extension part 6 is provided with a plurality of extension parts 6, and the plurality of extension parts 6 are connected with the plurality of transverse parts 5 respectively; adjacent transverse parts 5 are connected by means of the first vertical beam 51 and the first secondary beam 52, the two ends of the first vertical beam 51 are connected with the first vertical column 1 respectively, and the two ends of the first secondary beam 52 are connected with the first horizontal beam 2 respectively; adjacent extension parts 6 are connected by means of the second vertical beam 61 and the second secondary beam 62, the two ends of the second vertical beam 61 are connected with the second vertical column 4 respectively, and the two ends of the second secondary beam 62 are connected with the second horizontal beam 3 respectively; wherein, the second direction is perpendicular to the first direction.
[0047] Specifically, the plurality of first columns 1 are uniformly spaced in the second direction, and the spacing distance can be 5.1 meters. In the first direction, the adjacent two first columns 1 that project onto each other are connected by the first cross beam 2, and in the second direction, the adjacent two first columns 1 that project onto each other are connected by the first vertical beam 51. The first beams 52 are connected between the adjacent and parallel first cross beams 2, and the plurality of first beams 52 are spaced in the extension direction of the first cross beam 2. In addition, the extension part 6 is arranged on the opposite sides of the plurality of span parts, and the plurality of second cross beams 3 are respectively connected with the first column 1. The second beams 62 are connected between the adjacent two second cross beams 3 in the second direction, and the plurality of second beams 62 are spaced in the extension direction of the second cross beam 3.
[0048] Specifically, the first vertical beam 51 and the second vertical beam 61 are both frame beams. The width of the first vertical beam 51 is 500 mm, and the height is 700 mm. Four first longitudinal reinforcing steels with a diameter of 22 mm are arranged on the upper part of the beam body, and five second longitudinal reinforcing steels with a diameter of 22 mm are arranged on the lower part. The extension direction of the first longitudinal reinforcing steel is consistent with the extension direction of the first vertical beam 51. The width of the second vertical beam 61 is 300 mm, and the height is 600 mm. Two second longitudinal reinforcing steels with a diameter of 22 mm are arranged on the upper part of the beam body, and four second longitudinal reinforcing steels with a diameter of 20 mm are arranged on the lower part. The extension direction of the second longitudinal reinforcing steel is consistent with the extension direction of the second vertical beam 61.
[0049] In some embodiments, in combination with Figure 2 and Figure 3 As shown, the cross-sectional shape of the first web 211 is H-shaped, and the first web 211 has a first web 211. The first constructional steel 22 is fixed to the first web 211 by the first fixing steel 24, and the two ends of the first fixing steel 24 are respectively fixed to the first constructional steel 22 and the first web 211.
[0050] Specifically, the first fixing steel 24 is a short reinforcing steel, the first constructional steel 22 is a constructional steel, the short reinforcing steel is perpendicular to the constructional steel and the first web 211, and the two ends are respectively welded to the constructional steel and the web.
[0051] In some embodiments, in combination with Figure 2 As shown, the first cross beam 2 also has a first stirrup 26 and a first longitudinal steel 27, and the first longitudinal steel 27 is arranged in the extension direction of the first cross beam 2.
[0052] Specifically, the cross-sectional width of the first beam 2 is 450 mm, the cross-sectional height is 1300 mm, the first web beam 21 is an H-shaped steel, the cross-sectional height of the first web beam 21 is 900 mm, the flange width is 250 mm, the web thickness is 25 mm, and the flange thickness is 32 mm; the first web beam 21 is provided with a stud arranged along the full length of the beam; the first beam 2 is provided with six first longitudinal reinforcement bars 27 with a diameter of 25 mm at the upper part and ten first longitudinal reinforcement bars 27 with a diameter of 25 mm at the lower part; the first beam 2 is provided with first waist reinforcement bars 23, i.e., side longitudinal reinforcement bars, with a diameter of 16 mm at both sides, which are used to control concrete shrinkage and temperature cracks and enhance the torsional performance of the beam; the first stirrup 26 has a diameter of 12 mm, and there are four first stirrups 26 in each cross section.
[0053] In some embodiments, in combination Figure 6 As shown, the first column 1 has a web column 11, a main reinforcement 12, and a second stirrup 13; the web column 11 and the main reinforcement 12 are arranged in the height direction of the first column 1; the second stirrup 13 is connected with the main reinforcement 12.
[0054] Specifically, the web column 11 is a steel web column 11, and the extension direction of the web column 11 is consistent with that of the first column 1; the cross-sectional width of the first column 1 is 1000 mm, and the cross-sectional height is 800 mm; the first column 1 is provided with 20 main reinforcements 12 with a diameter of 25 mm arranged uniformly around the column cross section, and the extension direction of the main reinforcement 12 is consistent with that of the first column 1, which is used to bear axial force and bending moment; the two ends of the second stirrup 13 are connected with the main reinforcement 12 at different positions, and a plurality of second stirrups 13 are connected with the main reinforcement 12 in pairs; the web column 11 is provided with a stud arranged along the full length of the column body.
[0055] In some embodiments, in combination Figure 2 As shown, the first tension reinforcement 25 is provided with a sleeving part 251 at both ends, and the sleeving part 251 is connected with the first waist reinforcement 23 or the first structural reinforcement 22; the first tension reinforcement 25 is arranged staggered with the first fixed reinforcement 24.
[0056] Specifically, the sleeving part 251 can be a ring buckle with an opening, and the sleeving part 251 is sleeved on the reinforcement body of the first waist reinforcement 23 or the first structural reinforcement 22, and the ring buckle is connected with the reinforcement body; the sleeving part 251 at one end of the first tension reinforcement 25 connected with the first structural reinforcement 22 is arranged staggered with the first fixed reinforcement 24 to prevent interference.
[0057] In some embodiments, in combination Figure 2As shown, a plurality of the first structural ribs 22 are respectively fixed on opposite sides of the first web plate 211; a plurality of the first waist ribs 23 are respectively arranged on opposite sides of the first web plate 211, and the first waist rib 23 and the first structural rib 22 on the same side of the first web plate 211 correspond to each other one by one; the first tie 25 is provided with a plurality of first ties 25, and the first tie 25 is connected with the corresponding first structural rib 22 and first waist rib 23.
[0058] Specifically, the first waist rib 23 is arranged at the edge beam body of the first cross beam 2 and is spaced apart from the first web plate 211, the first structural rib 22 is arranged close to the first web plate 211 and is fixed with the first web plate 211 by means of the first fixing rib 24, i.e. the short steel bar; the first tie 25 is connected with the first waist rib 23 and the first structural rib 22.
[0059] In some embodiments, in combination with Figure 4 and Figure 5 As shown, the second cross beam 3 has a second beam 31, a second structural rib 32 and a second waist rib 33; the second beam 31, the second structural rib 32 and the second waist rib 33 are arranged along the length direction of the second cross beam 3; the second waist rib 33 is arranged in a spaced manner with the second beam 31, the first structural rib 22 is fixed with the first framework by means of the second fixing rib 34; the second cross beam 3 further has a second tie 35, both ends of the second tie 35 are connected with the second waist rib 33 and the second structural rib 32 respectively; the cross-sectional shape of the second beam 31 is H-shaped, and the second beam 31 has a second web plate 311; the second structural rib 32 is fixed with the second web plate 311 by means of the second fixing rib 34, and both ends of the second fixing rib 34 are fixed with the second structural rib 32 and the second web plate 311 respectively; the second cross beam 3 further has a third stirrup 36 and a third longitudinal rib 37, and the third longitudinal rib 37 is arranged along the extension direction of the second cross beam 3.
[0060] Specifically, the cross-sectional width of the second cross beam 3 is 450mm, the cross-sectional height is 900mm, the second beam 31 is H-shaped steel, the cross-sectional height of the second beam 31 is 600mm, the flange width is 250mm, the web plate thickness is 16mm, and the flange thickness is 30mm; the second beam 31 is provided with a stud arranged along the whole length of the beam; the second cross beam 3 is provided with 6 third longitudinal ribs 37 with a diameter of 25mm at the upper part and 6 third longitudinal ribs 37 with a diameter of 25mm at the lower part; the second cross beam 3 is provided with a second waist rib 33, i.e. a side longitudinal rib, with a diameter of 14mm on both sides, which is used to control the shrinkage and temperature cracks of concrete and enhance the torsional performance of the beam; the third stirrup 36 has a diameter of 10mm, and there are 4 third stirrups 36 in each cross section.
[0061] Obviously, the above embodiments are only examples for clearly illustrating, and are not limitation to the embodiments. Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the present application.
Claims
1. A long span composite structure, characterized by, The utility model relates to a kind of steel structure, including: First column (1), at least two described first column (1) is spaced apart along first direction arrangement; First crossbeam (2) is connected with at least two described first column (1), and the first crossbeam (2) has first skeleton beam (21), first configuration rib (22) and first waist rib (23); The first skeleton beam (21), first configuration rib (22) and first waist rib (23) are all arranged along the length direction of first crossbeam (2); The first waist rib (23) is spaced apart with the first skeleton beam (21), and first configuration rib (22) is fixed with the first skeleton beam (21) by first fixed rib (24). The first crossbeam (2) further has first tie (25), and the both ends of the first tie (25) are connected with the first waist rib (23) and first configuration rib (22) respectively; Second crossbeam (3), one end is connected with the first column (1), and the other end is connected with second column (4);The second crossbeam (3) is collinear with the first crossbeam (2); The connecting structure of the first column (1) and the first crossbeam (2) is defined as cross part (5); The connecting structure of the second crossbeam (3) and the second column (4) is defined as extension part (6), and at least two described extension parts (6) are connected to the opposite sides of the cross part (5) along the first direction respectively.
2. The long span composite structure of claim 1, wherein, The length of the cross part (5) in the first direction is D, wherein 0 3. The long span composite structure of claim 2, wherein, The cross part (5) is provided with a plurality of, and a plurality of described cross parts (5) are spaced apart along the second direction; The extension part (6) is provided with a plurality of, and a plurality of described extension parts (6) are connected with a plurality of described cross parts (5) respectively; Adjacent cross parts (5) are connected by first vertical beam (51) and first secondary beam (52), and the both ends of the first vertical beam (51) are connected with the first column (1) respectively, and the both ends of the first secondary beam (52) are connected with the first crossbeam (2) respectively; Adjacent extension parts (6) are connected by second vertical beam (61) and second secondary beam (62), and the both ends of the second vertical beam (61) are connected with the second column (4) respectively, and the both ends of the second secondary beam (62) are connected with the second crossbeam (3) respectively; Wherein, the second direction is perpendicular to the first direction.
4. The long span composite structure of claim 1, wherein, The cross-sectional shape of the first skeleton beam (21) is H type, and the first skeleton beam (21) has first web (211); The first configuration rib (22) is fixed with the first web (211) by the first fixed rib (24), and the both ends of the first fixed rib (24) are fixed with the first configuration rib (22) and the first web (211) respectively.
5. The long span composite structure of claim 4, wherein, The first crossbeam (2) further has first stirrup (26) and first longitudinal rib (27), and the first longitudinal rib (27) is arranged along the extension direction of the first crossbeam (2).
6. The long span composite structure of claim 1, wherein, The first column (1) has skeleton column (11), main rib (12) and second stirrup (13); The skeleton column (11) and main rib (12) are all arranged along the height direction of the first column (1); The second stirrup (13) is connected with the main rib (12).
7. The long span composite structure of claim 4, wherein, The first pull bar (25) is provided with a sleeve joint (251) at each end, and the sleeve joint (251) is connected with the first waist bar (23) or the first construction bar (22) in a matched manner. The first pull bar (25) is arranged in a staggered manner with the first fixed bar (24).
8. The long span composite structure of claim 4, wherein, A plurality of first construction bars (22) are fixed on opposite sides of the first web plate (211). A plurality of first waist bars (23) are arranged on opposite sides of the first web plate (211), and the first waist bars (23) and the first construction bars (22) on the same side of the first web plate (211) correspond to each other in a one-to-one manner. The first pull bar (25) is provided with a plurality of first pull bars (25), and each of the first pull bars (25) is connected with the corresponding first construction bar (22) and first waist bar (23).
9. The long span composite structure of claim 5, wherein, The second cross beam (3) has a second bone beam (31), a second construction bar (32) and a second waist bar (33). The second bone beam (31), the second construction bar (32) and the second waist bar (33) are arranged in the length direction of the second cross beam (3). The second waist bar (33) is arranged in a spaced manner with the second bone beam (31), and the second construction bar (32) is fixed with the second bone beam (31) by means of the second fixed bar (34). The second cross beam (3) further has a second pull bar (35), and the two ends of the second pull bar (35) are connected with the second waist bar (33) and the second construction bar (32). The cross-sectional shape of the second bone beam (31) is H-shaped, and the second bone beam (31) has a second web plate (311). The second construction bar (32) is fixed with the second web plate (311) by means of the second fixed bar (34), and the two ends of the second fixed bar (34) are fixed with the second construction bar (32) and the second web plate (311). The second cross beam (3) further has a third stirrup bar (36) and a third longitudinal bar (37), and the third longitudinal bar (37) is arranged in the extension direction of the second cross beam (3).