High-strength truss keel and grouting net wall applying same

Abstract

The utility model relates to a high-strength truss keel and a grouting net wall applying the same, and relates to the technical field of fabricated buildings. The high-strength truss keel comprises an upper chord structural member and two lower chord structural members, and further comprises a plurality of connecting rib sets, each connecting rib set is located between the upper chord structural member and the corresponding lower chord structural member, and each connecting rib set comprises a first connecting steel bar and a second connecting steel bar; one end of each first connecting steel bar and one end of each second connecting steel bar are connected with the side, close to the lower chord structural members, of the upper chord structural member, and the other end of each first connecting steel bar and the other end of each second connecting steel bar are connected with the two lower chord structural members. The light steel keel has the effect of improving the overall strength of the filling net wall when the light steel keel is applied to the filling net wall.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fabricated buildings, in particular to a high-strength truss keel and a grouting net wall using the truss keel. BACKGROUND

[0002] In modern building construction, the application of prefabricated concrete components is becoming more and more widespread. Among them, the assembled wallboard has become a common choice for high-rise buildings and residential buildings due to its fast construction speed and stable quality. The grouting net wall is usually used in the assembled wallboard to ensure the overall performance of the wall after completion. With the development of the construction industry, the use of light steel keels in grouting net walls has become a common measure to ensure the overall performance of grouting net walls and plays an important role in the fabricated building industry.

[0003] A grouting net wall in the prior art includes a keel frame, a plurality of light steel keels and two reinforced expanded nets. The keel frame is in the shape of a frame and is used to be fixedly installed in a rectangular slot opened in a wall. The cross section of each light steel keel is in the shape of a rectangular frame and is arranged in the keel frame. The plurality of light steel keels are arranged along the width direction of the keel frame and are fixedly installed at the top and bottom ends of the keel frame. The two reinforced expanded nets are arranged on both sides of the light steel keel along the thickness direction of the light steel keel and are fixedly connected with the keel frame. In use, each light steel keel is positioned and fixedly installed on the keel frame, then the two reinforced expanded nets are fixedly installed on the corresponding two sides of the keel frame, and after installation is completed, concrete is poured into the remaining space in the keel frame.

[0004] In view of the related technology in the above, since the cross section of the light steel keel in the prior art is in the shape of a closed rectangular frame, the space in the light steel keel and the external space are mostly in a separated state, which makes it difficult to fill the space in the light steel keel with concrete, so that the light steel keel cannot form a wall surface whole with the formed concrete, thereby reducing the overall strength of the grouting wall after pouring and forming, and improvement is needed. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the overall strength of the grouting net wall when the light steel keel is applied to the grouting net wall, the application provides a high-strength truss keel and a grouting net wall using the truss keel.

[0006] In the first aspect, the application provides a high-strength truss keel, which adopts the following technical scheme:

[0007] The utility model provides a high -strength truss keel, including upper chord structural member, two lower chord structural member and a plurality of connecting rib group, every connecting rib group is located between upper chord structural member and lower chord structural member, every connecting rib group includes first connecting steel bar and second connecting steel bar, every first connecting steel bar and second connecting steel bar one end, with the upper chord structural member one side near lower chord structural member is connected, every first connecting steel bar and second connecting steel bar the other end, with two lower chord structural member is connected.

[0008] By adopting the above technical scheme, compared with the prior art, the cross section of the light steel keel is in the form of a closed rectangular frame, so that the space in the light steel keel is difficult to be filled with concrete, thereby when the wall is subjected to a large external force, the light steel keel inside the wall is prone to damage or fracture, reducing the overall strength of the wall; the upper chord structural member can be connected with each lower chord structural member through a plurality of connecting rib groups, thereby ensuring the connection strength between the upper chord structural member, the connecting rib group and the lower chord structural member, and on the basis of ensuring the connection strength, the connectivity between the inside of the truss keel of the utility model and the outside is increased, so that when the truss keel of the utility model is used in a keel frame, the space between the upper chord structural member, the lower chord structural member and the connecting rib group can be filled with concrete, so that the truss keel of the utility model can form a whole wall surface with the formed concrete, thereby improving the overall strength of the grouting net wall when the truss keel of the utility model is applied to the grouting net wall; meanwhile, the first and second connecting steel bars can directly support the upper chord structural member, thereby effectively reducing the probability of bending or fracture of the welding position between the first and second connecting steel bars and the upper chord structural member when the upper chord structural member is subjected to an external force perpendicular to the length direction of the upper chord structural member, effectively ensuring the perpendicularity and bending resistance of the truss keel of the utility model, and ensuring the service life and use effect of the utility model.

[0009] Preferably, the first connecting steel bar and the second connecting steel bar in each connecting rib group are inclined to each lower chord structural member, and the inclination directions are opposite.

[0010] By adopting the above technical scheme, the inclination of the first and second connecting steel bars effectively ensures the connection strength between the first and second connecting steel bars and the lower chord structural member, and increases the stability when the first and second connecting steel bars are connected with the upper chord structural member and the lower chord structural member, thereby ensuring the service life and use effect of the utility model.

[0011] Preferably, each first connecting steel bar and each second connecting steel bar form a 45-degree angle with the two lower chord structural members.

[0012] By adopting the technical scheme, the specific setting of the inclination angle of the first connecting steel bar and the second connecting steel bar further guarantees the connecting strength between the first and second connecting steel bars and the chord structural member, further increases the stability of the first and second connecting steel bars when connected with the upper chord structural member and the lower chord structural member, and effectively reduces the probability of bending of the high-strength truss keel.

[0013] Preferably, the upper chord structural member and each lower chord structural member are long strip plates with a rectangular cross section.

[0014] By adopting the technical scheme, the shape of the upper chord structural member and the lower chord structural member can effectively guarantee the structural strength of the upper chord structural member and the lower chord structural member, thereby guaranteeing the structural strength of the truss keel.

[0015] Preferably, the upper chord structural member and each lower chord structural member are long strip square tubes with an internal hollow.

[0016] By adopting the technical scheme, the shape of the upper chord structural member and the lower chord structural member can reduce the weight of the truss keel under the premise of guaranteeing the structural strength of the upper chord structural member and the lower chord structural member, thereby saving materials and facilitating transportation of the truss keel.

[0017] In a second aspect, the application further provides a grouting mesh wall using the truss keel, which adopts the following technical scheme:

[0018] The grouting mesh wall using the truss keel comprises a keel frame, a concrete layer, a plurality of high-strength truss keels, and a plurality of reinforced expansion meshes. The keel frame is installed on a wall body. Each high-strength truss keel is installed in the keel frame and is distributed along the width direction of the keel frame and is arranged in parallel. The plurality of reinforced expansion meshes are respectively laid on the opposite sides of the keel frame along the thickness direction of the keel frame and are connected with the keel frame. The concrete layer is used to fill the remaining space in the keel frame.

[0019] Compared with the grouting net wall composed of the ribbed expansion net, the plurality of light steel keels and the grouting material in the prior art, the grouting net wall of the present application can be positioned and installed by the workers only by positioning the keel frame and the inner wall of the wall, thereby effectively facilitating the operation of the workers, reducing the workload of the workers and reducing the cost of the on-site construction. In addition, the keel frame and the truss keel can make the formed concrete layer and the truss keel form an integral wall surface, thereby effectively improving the strength of the integral wall surface, and the existence of the keel frame can also ensure the adhesion between the keel frame and the wall and reduce the risk of falling off.

[0020] Preferably, the keel frame is further provided with a plurality of steel bars, the plurality of steel bars are respectively located on opposite sides of the keel frame along the thickness direction of the keel frame, are connected with the keel frame and are connected with the corresponding high-strength truss keel, and each ribbed expansion net is connected with each steel bar located on the corresponding side of the keel frame along the thickness direction of the keel frame.

[0021] By adopting the above technical scheme, the steel bars can support the ribbed expansion net by being connected with the ribbed expansion net, and the ribbed expansion net can be uniformly stressed, thereby reducing the probability of accidental rupture of the ribbed expansion net and reducing the probability of film expansion of the ribbed expansion net, effectively ensuring the service life of the ribbed expansion net and improving the stability and reliability of the grouting net wall structure of the present application.

[0022] Preferably, the length direction of each upper chord structural member and each lower chord structural member is the length direction of the keel frame, and both ends of each upper chord structural member and each lower chord structural member along the length direction of the pipe extend into the keel frame and are connected with the keel frame.

[0023] By adopting the above technical scheme, the specific arrangement of the positions and connections of the high-strength truss keel makes each high-strength truss keel have six connection points with the keel frame, thereby ensuring the perpendicularity of the high-strength truss keel and enhancing the bending resistance of the wall, thereby ensuring the structural strength and service life of the present application.

[0024] Preferably, the upper chord structural members on the adjacent high-strength truss keels are respectively located on opposite sides of the keel frame along the thickness direction of the keel frame.

[0025] By adopting the technical scheme, the staggered arrangement of the high-strength truss keel not only provides excellent bearing capacity and lateral force resistance, but also effectively slows down the falling speed of the concrete during grouting, thereby reducing the probability of rupture of the reinforced expansion net due to excessive pressure and improving the one-time pouring height.

[0026] Preferably, the concrete layer is made of coal gangue lightweight concrete.

[0027] By adopting the technical scheme, the arrangement of the concrete layer made of coal gangue lightweight concrete can not only reduce the self-weight of the grouting net wall of the application, but also ensure the structural strength of the grouting net wall of the application, effectively ensure the thermal insulation performance and sound insulation performance of the application, and meet the current concept of green and low carbon.

[0028] In summary, the application has at least one of the following beneficial technical effects:

[0029] 1. The arrangement of the top chord structure, the bottom chord structure and the connecting rib group enables the top chord structure to be connected to each bottom chord structure through a plurality of connecting rib groups, thereby ensuring the connection strength between the top chord structure, the connecting rib group and the bottom chord structure, and increasing the connectivity between the inside of the truss keel of the application and the outside on the basis of ensuring the connection strength of the application, so that the truss keel of the application can fill the space between the top chord structure, the bottom chord structure and the connecting rib group with concrete when used in the keel frame, thereby enabling the truss keel of the application to form an integral wall surface with the formed concrete, thereby improving the overall strength of the grouting net wall when the truss keel of the application is applied to the grouting net wall;

[0030] 2. The arrangement of the keel frame and the high-strength truss keel enables relevant personnel to only position the keel frame and the inner wall of the wall during installation of the grouting net wall of the application, thereby effectively facilitating the operation of the construction personnel, reducing the workload of the construction personnel and reducing the cost of on-site construction; meanwhile, the existence of the keel frame enables the concrete layer to form an integral wall surface, thereby effectively ensuring the strength of the integral wall surface, and the existence of the keel frame also ensures the adhesion between the keel frame and the wall and reduces the risk of falling off;

[0031] 3. The arrangement of the steel bar enables the steel bar to support the reinforced expansion net by connecting with the reinforced expansion net and make the stress of the reinforced expansion net uniform, thereby reducing the probability of accidental rupture of the reinforced expansion net and the probability of film expansion of the reinforced expansion net, effectively ensuring the service life of the reinforced expansion net and improving the stability and reliability of the grouting net wall structure of the application. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1Fig. 1 is a schematic diagram of a high-strength truss keel structure according to an embodiment of the present application.

[0033] Figure 2 Fig. 2 is a schematic diagram of a grouting net wall structure according to an embodiment of the present application.

[0034] Figure 3 Fig. 3 is a schematic diagram of a structure with a reinforced expanded net according to an embodiment of the present application.

[0035] Figure 4 Fig. 4 is a schematic diagram of a steel bar structure according to an embodiment of the present application.

[0036] Figure 5 Fig. 5 is a schematic diagram of a ceiling and floor keel structure according to an embodiment of the present application.

[0037] Figure 6 Fig. 6 is a schematic diagram of a high-strength truss keel structure according to an embodiment of the present application.

[0038] Figure 7 Fig. 7 is a schematic diagram of a steel bar structure according to an embodiment of the present application.

[0039] Figure 8 Fig. 8 is a schematic diagram of a sleeve connecting frame structure according to an embodiment of the present application.

[0040] Figure 9 Fig. 9 is a schematic diagram of a fixed part structure according to an embodiment of the present application.

[0041] Figure 10 Fig. 10 is a schematic diagram of a continuous steel bar structure according to an embodiment of the present application.

[0042] Figure 11 Fig. 11 is a schematic diagram of a continuous steel bar structure according to an embodiment of the present application.

[0043] BRIEF DESCRIPTION OF DRAWINGS 1, upper chord structural member; 2, lower chord structural member; 3, connecting rib group; 31, first connecting steel bar; 32, second connecting steel bar; 33, foot part; 34, continuous steel bar; 4, keel frame; 41, ceiling and floor keel; 42, light steel keel; 5, concrete layer; 6, reinforced expanded net; 7, wall body; 71, mounting groove; 8, groove; 9, steel bar; 91, bent part; 911, embedded groove; 10, sleeve connecting frame; 101, fixed part. DETAILED DESCRIPTION

[0044] The above description is made in connection with the accompanying drawings. Figures 1-6 The present application is further described in detail.

[0045] An embodiment of the present application discloses a high-strength truss keel. Referring to Figure 1, The high-strength truss keel includes an upper chord structural member 1, two lower chord structural members 2, and several connecting rib groups 3. Each connecting rib group 3 is located between the upper chord structural member 1 and the lower chord structural member 2. Each connecting rib group 3 includes a first connecting steel bar 31 and a second connecting steel bar 32. One end of each first connecting steel bar 31 and each second connecting steel bar 32 is fixedly connected to the side of the upper chord structural member 1 close to the lower chord structural member 2 by welding. The other ends of each first connecting steel bar 31 and each second connecting steel bar 32 are connected to the two lower chord structural members 2.

[0046] Refer to Figure 1 , The upper chord structural member 1 and each lower chord structural member 2 are arranged in parallel. In the embodiment of the present application, the upper chord structural member 1 and each lower chord structural member 2 are both arranged as long strip plates with a rectangular cross-section and are both solid plates. The two lower chord structural members 2 are respectively located on both sides of the upper chord structural member 1, and the distances between them and the upper chord structural member 1 are the same. Each upper chord structural member 1 and lower chord structural member 2 is made of galvanized steel sheet.

[0047] Refer to Figure 1 , The bottom ends of each connecting steel bar and each second connecting steel bar 32 extend out two supporting feet 33. Each supporting foot 33 is integrally formed with the corresponding first connecting steel bar 31 or second connecting steel bar 32, so that each first connecting steel bar 31 and each second connecting steel bar 32 are in a "U" shape.

[0048] Refer to Figure 1 , The two supporting feet 33 on each first connecting steel bar 31 and the two supporting feet 33 on each second connecting steel bar 32 correspond to the two lower chord structural members 2. Each supporting foot 33 is fixedly connected to the end of the corresponding lower chord structural member 2 close to the upper chord structural member 1 by welding.

[0049] Refer to Figure 1 , The length directions of the first connecting steel bar 31 and the second connecting steel bar 32 in each connecting rib group 3 are inclined with respect to the length direction of each lower chord structural member 2, and the inclination directions of the first connecting steel bar 31 and the second connecting steel bar 32 in each group are opposite. The inclination angle between each first connecting steel bar 31 and each second connecting steel bar 32 and each lower chord structural member 2 is 45 degrees, and the inclination angle between them and the upper chord structural member 1 is also 45 degrees, so that the high-strength truss keel of the present application has better mechanical properties.

[0050] The implementation principle of the high-strength truss keel in the embodiment 1 of the present application is that the upper chord structural member 1, the lower chord structural member 2 and the connecting rib group 3 are arranged, so that the upper chord structural member 1 is connected with each lower chord structural member 2 through the connecting rib group 3, thereby ensuring the connecting strength between the upper chord structural member 1, the connecting rib group 3 and the lower chord structural member 2, and on the basis of ensuring the connecting strength, the connectivity between the inside of the truss keel and the outside is increased, so that when the truss keel is used in the keel frame 4, the concrete can fill the space between the upper chord structural member 1, the lower chord structural member 2 and the connecting rib group 3, thereby enabling the truss keel to form an integral wall surface with the formed concrete, and thereby improving the overall strength of the grouting net wall when the truss keel is applied to the grouting net wall.

[0051] The embodiment 1 of the present application also discloses a grouting net wall applying the truss keel. Referring to Figure 2 and Figure 3 , the grouting net wall applying the truss keel comprises the keel frame 4, the concrete layer 5, a plurality of high-strength truss keels and a plurality of ribbed expansion nets 6. The keel frame 4 is used to be installed in the wall body 7, and the installation groove 71 is provided through the side wall of the wall body 7 to install the keel frame 4. The thickness of the wall body 7 is greater than the overall thickness of the keel frame 4, so that the ribbed expansion net 6 after pouring is completely located in the concrete layer 5.

[0052] Referring to Figure 3 , Figure 4 and Figure 5 , the keel frame 4 comprises two ceiling and floor keels 41 and two light steel keels 42. The two ceiling and floor keels 41 are respectively located at the upper and lower ends in the installation groove 71 and are fixedly connected with the inner side wall of the wall body 7 through expansion screws. The two light steel keels 42 are respectively located at the left and right sides in the installation groove 71 and are located between the two ceiling and floor keels 41 and are fixedly connected with the inner side wall of the installation groove 71 through expansion bolts. The adjacent ceiling and floor keel 41 and light steel keel 42 are arranged in close contact.

[0053] Referring to Figure 4 and Figure 5 , the cross section of the middle part of each ceiling and floor keel 41 and light steel keel 42 is arranged in a "U" shape, so that each ceiling and floor keel 41 and light steel keel 42 forms a groove 8 in the direction of the inner side of the installation groove 71.

[0054] Referring to Figure 4 and Figure 5 , in the embodiment of the present application, the number of high-strength truss keels is three, and the high-strength truss keels are arranged at equal intervals along the length direction of the ceiling and floor keel 41. The upper chord structural member 1 and the lower chord structural member 2 in each high-strength truss keel extend to the grooves 8 of the two ceiling and floor keels 41 at the two ends along the length direction of the high-strength truss keel, and are fixedly connected with the corresponding ceiling and floor keel 41 through a nail.

[0055] Referring to Figure 4 , the upper chord structural member 1 located in the middle high-strength truss keel is located on one side of the floor-ceiling keel 41 along the thickness direction of the floor-ceiling keel 41, and the upper chord structural members 1 of the remaining two middle high-strength truss keels are located on the other side of the floor-ceiling keel 41 along the thickness direction of the floor-ceiling keel 41, so that the three high-strength truss keels are staggered to provide excellent load-bearing capacity and lateral force resistance and slow down the speed of the concrete falling during grouting.

[0056] Referring to Figure 4 and Figure 5 , a plurality of steel bars 9 are further arranged between the two light steel keels 42, and the plurality of steel bars 9 are respectively located on opposite sides of one light steel keel 42 along the thickness direction of the light steel keel 42 and are arranged at equal intervals along the length direction of the light steel keel 42. The two ends of each steel bar 9 along the length direction of the steel bar 9 are respectively extended to one side of the two light steel keels 42, and are fixedly connected with the corresponding light steel keel 42.

[0057] Referring to Figure 4 , the steel bar 9 located at the top end and the steel bar 9 located at the bottom end are abutted and fixedly connected with the corresponding floor-ceiling keel 41. The remaining each steel bar 9 is fixedly connected with the upper chord structural member 1 or the lower chord structural member 2 of the corresponding side of the three high-strength truss keels through nailing.

[0058] Referring to Figure 3 and Figure 5 , in the embodiment, the number of the reinforced expanded mesh 6 is two, and the two reinforced expanded meshes 6 are galvanized. The two reinforced expanded meshes 6 are respectively located on opposite sides of the floor-ceiling keel 41 along the thickness direction of the floor-ceiling keel 41 and are respectively located on the side away from each other of the two steel bars 9. The end of each reinforced expanded mesh 6 is extended to one side of the floor-ceiling keel 41 or the light steel keel 42, and each reinforced expanded mesh 6 is fixedly connected with each light steel keel 42.

[0059] Referring to Figure 3 and Figure 5 , the two reinforced expanded meshes 6 are abutted with the corresponding steel bars 9. Each steel bar 9 connected with the high-strength truss keel through nailing is fixedly connected with the corresponding reinforced expanded mesh 6 through nailing, and the nailing of the steel bar 9 connected with the high-strength truss keel is the same as the nailing of the steel bar 9 connected with the reinforced expanded mesh 6, so as to increase the firmness of the connection.

[0060] Referring to Figure 2 , Figure 3 and Figure 5The concrete layer 5 is made of lightweight coal gangue concrete to reduce the self-weight of the grouting mesh wall while ensuring its structural strength. The concrete layer 5 is poured into the remaining space within the keel frame 4 by grouting, thereby completely fixing the keel frame 4, high-strength truss keel, reinforced expanded mesh 6 and steel bars 9, and the concrete layer 5 completely encloses the keel frame 4, high-strength truss keel, reinforced expanded mesh 6 and steel bars 9 within itself.

[0061] The implementation principle of a grouting mesh wall using the truss keel in Embodiment 1 of this application is as follows: In use, the top and bottom keels 41 and the light steel keel 42 are first fixedly installed in the mounting grooves 71 of the wall 7. Then, both ends of each high-strength truss keel are inserted into the grooves 8 in the corresponding top and bottom keels 41 and fixedly connected by nails. Next, each steel bar 9 is fixedly installed on the keel frame 4, and two reinforced expanded meshes 6 are fixedly installed. Then, the high-strength truss keel, steel bars 9, and reinforced expanded meshes 6 are fixed together by nails. Finally, concrete is poured into the keel frame 4 to form the concrete layer 5.

[0062] Example 2:

[0063] The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 6 Each upper chord structural component 1 and each lower chord structural component 2 is a hollow, elongated square tube, and both are made of galvanized steel square tubes, thus making the interior of each upper chord structural component 1 and each lower chord structural component 2 hollow to reduce their weight.

[0064] Reference Figure 6 Each of the first connecting steel bars 31 and each of the second connecting steel bars 32 extends at one end, and the outline formed by the extension is an isosceles trapezoid, but none of them form a lower base (i.e., a longer base). The two support portions 33 on each of the first connecting steel bars 31 and each of the second connecting steel bars 32 are respectively set at their two ends (i.e., the ends of the two sides of the isosceles trapezoid away from the upper base), so that the support portions 33 can be fixedly connected to the corresponding lower chord structural member 2.

[0065] Reference Figure 6 The isosceles trapezoidal shape of the first connecting steel bar 31 and the second connecting steel bar 32 allows for a wider lateral bracing range of the truss keel and greater overall stability. It also increases lateral torsional resistance, reduces the probability of twisting deformation at the center of the truss keel during grouting, and allows the truss keel to be stacked along the height direction, reducing the space required for placement and thus reducing transportation costs.

[0066] The implementation principle of the high-strength truss keel in the embodiment 2 of the present application is that the first connecting steel bar 31 and the second connecting steel bar 32 are arranged in the shape of an isosceles trapezoid, so that the truss keel of the present application has a wider transverse pull range and is more stable as a whole, and the lateral torsion resistance is increased, the probability of torsional deformation of the center of the truss keel during grouting is reduced, and the truss keel can be stacked along the height direction, the space required for placement is reduced, and the transportation cost is further reduced.

[0067] The embodiment 2 of the present application also provides a grouting net wall using the truss keel. Figure 7 Each steel bar 9 is arranged in the shape of a keel, and each steel bar 9 is provided with a bending portion 91 on the upper and lower sides, each bending portion 91 extending towards the truss keel. An embedding groove 911 is formed in the top wall of each bending portion 91, so that each upper chord structural member 1 and each lower chord structural member 2 close to each other can be clamped into the embedding groove 911 on the bending portion 91.

[0068] Referring to Figure 7 The body part of each steel bar 9 is fixedly connected with the corresponding upper chord structural member 1 and lower chord structural member 2 through a steel row nail, so that the truss keel and the steel bar 9 form an integral whole, and the strength is improved.

[0069] Embodiment 3

[0070] The difference between the embodiment 3 of the present application and the embodiment 2 is that Figure 8 and Figure 9 The top end of each truss keel is provided with a sleeve connecting frame 10, and each sleeve connecting frame 10 is sleeved on the top end of the corresponding truss keel, so that the inner side wall of the sleeve connecting frame 10 is attached to the side wall of the corresponding upper chord structural member 1 and lower chord structural member 2, and is fixedly connected through a steel row nail. In the embodiment of the present application, the sleeve connecting frame 10 is integrally formed, so that the use of the truss keel is reduced, the steel content is reduced, and the cost is reduced.

[0071] Referring to Figure 8 and Figure 9 The inner side wall of each sleeve connecting frame 10 is provided with a flange, and a plurality of notches are formed in each flange, so that the corresponding upper chord structural member 1 and lower chord structural member 2 are embedded therein. Each sleeve connecting frame 10 extends outwardly at both ends along the length direction of the sleeve connecting frame 10, and each fixed portion 101 is used to attach to the bottom wall of the top floor and is fixedly connected to the top floor through a cannon nail, so that the sleeve connecting frame 10, the truss keel and the top floor form an integral whole.

[0072] Embodiment 4

[0073] The difference between the embodiment 4 of the present application and the embodiment 2 is that Figure 10 Each of the connecting rib groups 3 comprises two continuous steel bars 34, which are respectively located on both sides of the upper chord structural member 1 along the width direction and are both inclined to the direction close to the upper chord structural member 1. Each of the continuous steel bars 34 is continuously and meanderingly arranged along the length direction of the upper chord structural member 1. The top of each of the meandering parts of the continuous steel bars 34 is fixedly connected with the side wall of the upper chord structural member 1 by welding, and the bottom of each of the meandering parts of the continuous steel bars 34 is fixedly connected with the top wall of the corresponding lower chord structural member 2 by welding.

[0074] Embodiment 5

[0075] The difference between the embodiment 5 of the present application and the embodiment 4 is that Figure 11 The bottom of each of the meandering parts of the continuous steel bars 34 is fixedly connected with the corresponding lower chord structural member 2 close to the side wall of the other lower chord structural member 2 by welding.

[0076] The above are the preferred embodiments of the present application, but not the limitation of the protection scope of the present application, so: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A high strength trussed keel characterized by: The utility model provides a kind of reinforced concrete frame, including upper chord structural member (1), two lower chord structural member (2) and several connecting rib groups (3), each connecting rib group (3) is located between upper chord structural member (1) and lower chord structural member (2), each connecting rib group (3) includes first connecting steel bar (31) and second connecting steel bar (32), one end of each first connecting steel bar (31) and each second connecting steel bar (32) is connected with the side of upper chord structural member (1) close to lower chord structural member (2), the other end of each first connecting steel bar (31) and each second connecting steel bar (32) is connected with two lower chord structural member (2).

2. A high strength trussed joist according to claim 1 wherein: The first connecting steel bar (31) and the second connecting steel bar (32) in each connecting rib group (3) are inclined to each lower chord structural member (2) and the inclination directions are opposite.

3. A high strength trussed keel according to claim 1, wherein: Each first connecting steel bar (31) and each second connecting steel bar (32) form a 45-degree angle with two lower chord structural member (2).

4. A high strength trussed keel according to claim 1, wherein: The upper chord structural member (1) and each lower chord structural member (2) are long strip plate-shaped with rectangular cross section.

5. A high strength trussed keel in accordance with claim 1, wherein: The upper chord structural member (1) and each lower chord structural member (2) are long strip square tube-shaped with hollow interior.

6. A grout wall using high-strength truss keels, characterized by using the high-strength truss keel according to any one of claims 1 to 5. The utility model provides a kind of reinforced concrete frame, including keel frame (4), concrete layer (5), several high-strength truss keels and several ribbed expansion nets (6), the keel frame (4) is installed on wall body (7), each high-strength truss keel is installed in keel frame (4) and is distributed along the width direction of keel frame (4) and is arranged in parallel, and several ribbed expansion nets (6) are laid on the opposite sides of keel frame (4) along the thickness direction of itself respectively and are connected with keel frame (4), and the concrete layer (5) is used to fill the remaining space in keel frame (4).

7. A grout wall using high-strength truss keels according to claim 6, characterized in that: The keel frame (4) is further provided with several steel bars (9), and the steel bars (9) are located on the opposite sides of the keel frame (4) along the thickness direction of itself, are connected with the keel frame (4), and are connected with the corresponding high-strength truss keels.

8. A grout wall using high-strength truss keels according to claim 6, characterized in that: The length direction of each upper chord structural member (1) and each lower chord structural member (2) is the length direction of the keel frame (4), and the two ends of each upper chord structural member (1) and each lower chord structural member (2) along the length direction of itself extend into the keel frame (4) and are connected with the keel frame (4).

9. A grout wall using high-strength truss keels according to claim 6, characterized in that: The upper chord structural member (1) on adjacent high-strength truss keels is located on the opposite sides of the keel frame (4) along the thickness direction of itself.

10. The grout wall with high-strength truss keel according to claim 6, characterized in that: The concrete layer (5) is made of coal gangue lightweight concrete.

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