Formed beam and beam-to-column joint

Abstract

The utility model relates to the technical field of building engineering, especially a formwork beam and beam column joint, the formwork beam includes formwork, steel beam frame and first connecting muscle, the steel beam frame is fixed in the formwork, the first connecting muscle is connected in the steel beam frame, and the first connecting muscle can move along the length direction of formwork, when installing the formwork beam, the first connecting muscle is moved and makes the first connecting muscle all retract into the formwork, can avoid the first connecting muscle that protrudes to the formwork outside and steel column frame interference, after the formwork beam installation is completed, the first connecting muscle is moved, and the first connecting muscle that extends to the formwork outside forms the connecting portion, and the connecting portion can guarantee the firm connection of formwork beam between the formwork column, the formwork beam of the utility model, the connecting portion can be set up on the connecting muscle, do not need to set up the connecting portion all on the longitudinal muscle of steel beam frame, be favorable to the installation of formwork beam, and the firm connection of beam column joint is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a molded beam and beam-column joint. Background Technology

[0002] Prefabricated monolithic buildings are an industrialized residential building system that combines prefabricated components processed in a factory with on-site cast concrete. Prefabricated monolithic buildings are constructed using a method of "prefabricated building components + on-site assembly + monolithic casting".

[0003] The existing formwork beam consists of a formwork shell and a steel reinforcement beam frame set within the formwork shell. The longitudinal bars of the steel reinforcement beam frame are longer than the length of the formwork shell, extending beyond the formwork shell to form a connection. During the on-site assembly of the formwork beam, the connection needs to be inserted into the steel reinforcement column frame of the formwork column when hoisting the formwork beam to ensure a firm connection at the beam-column joint. However, the reinforcement at the beam-column joint is dense, and some connection parts interfere with the steel reinforcement column frame, making it difficult to insert all connection parts into the steel reinforcement column frame simultaneously when hoisting the formwork beam. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing formwork beams rely on the longitudinal bars of the steel beam frame extending outside the formwork as the connecting part for connecting the steel column frame, which affects the installation of the formwork beam.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a molded beam, including a molded shell, a steel beam frame, and a first connecting bar; the steel beam frame is fixed in the molded shell, the first connecting bar is disposed in the steel beam frame, and the first connecting bar is configured to be movable along the length direction of the molded shell, so that the first connecting bar can be retracted into the molded shell or partially extended to one side of the length direction of the molded shell, and the first connecting bar extending out of the molded shell forms a connecting part for inserting into the steel column frame.

[0006] As a preferred embodiment, the steel beam frame includes a first longitudinal bar and a second longitudinal bar extending along the length direction of the formwork shell, and the first connecting bar is movably connected to the outside of the first longitudinal bar;

[0007] The molded beam further includes a second connecting rib and a connecting threaded sleeve. The end of the second longitudinal rib is provided with a first threaded section, and the first end of the second connecting rib is provided with a second threaded section. The first threaded section is threadedly inserted into one end of the connecting threaded sleeve, and the second threaded section is configured to be threadedly inserted into the other end of the connecting threaded sleeve.

[0008] As a preferred embodiment, the end of the second connecting rib away from the second threaded section is provided with a bent section.

[0009] As a preferred embodiment, the end of the second connecting rib away from the second threaded section is provided with a third threaded section.

[0010] As a preferred embodiment, the formwork beam further includes a first connecting plate and fasteners. The first connecting plate includes a first plate-shaped portion and a second plate-shaped portion arranged vertically. The first plate-shaped portion is fixedly connected to the steel beam frame, and the fasteners are fastened to the second plate-shaped portion and the formwork.

[0011] As a preferred embodiment, the mold shell includes a first template, a second template, and a third template. The first template is arranged horizontally, and the second template and the third template are respectively fixed on both sides of the width direction of the first template. The first template, the second template, and the third template enclose an upward-facing groove-shaped space, and the steel beam frame is arranged in the groove-shaped space.

[0012] As a preferred embodiment, the mold shell further includes a second connecting plate and a third connecting plate, both of which are disposed in the groove-shaped space;

[0013] The second connecting plate is disposed at the corner between the first template and the second template. The second connecting plate includes a third plate-shaped part and a fourth plate-shaped part arranged vertically. The third plate-shaped part is fixedly connected to the first template, and the fourth plate-shaped part is fixedly connected to the second template.

[0014] The third connecting plate is disposed at the corner between the first template and the third template. The third connecting plate includes a fifth plate-shaped part and a sixth plate-shaped part arranged vertically. The fifth plate-shaped part is fixedly connected to the first template, and the sixth plate-shaped part is fixedly connected to the third template.

[0015] A beam-column joint includes the aforementioned molded beam and a molded column, wherein the molded column has a steel reinforcement frame, and the connecting portion of the molded beam is inserted into the steel reinforcement frame.

[0016] As a preferred embodiment, the formwork beams are provided on both horizontally opposite sides of the formwork column, and the formwork beams located on both sides of the formwork column are defined as the first formwork beam and the second formwork beam, respectively, and the connecting part extends into the steel beam frame of the steel column and the steel beam frame of the second formwork beam.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The molded beam of this utility model includes a molded shell, a steel beam frame, and a first connecting bar. The steel beam frame is fixed in the molded shell, and the first connecting bar is connected to the steel beam frame. The first connecting bar can move along the length direction of the molded shell. When installing the molded beam, the first connecting bar is moved so that it is completely retracted into the molded shell, which can avoid interference between the first connecting bar protruding outside the molded shell and the steel beam frame, thus facilitating the installation of the molded beam. After the molded beam is installed, the first connecting bar is moved so that a part of the first connecting bar extends out to one side of the length direction of the molded shell. The first connecting bar extending out of the molded shell forms a connecting part, which can ensure a firm connection between the molded beam and the molded column. In this utility model, the connecting part of the molded beam can be set on the connecting bar, instead of setting the entire connecting part on the longitudinal bars of the steel beam frame, which is beneficial to the installation of the molded beam and ensures a firm connection between the beam and the column. Attached Figure Description

[0019] Figure 1 This is a front view of the mold shell beam of this utility model when the first connecting rib extends outside the mold shell;

[0020] Figure 2 This is a cross-sectional view of the mold shell beam of this utility model;

[0021] Figure 3 This is a front view of the beam-column joint during the construction process of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the beam-column joint of this utility model;

[0023] In the diagram, 1. Formwork beam, 11. Formwork, 111. First template, 112. Second template, 113. Third template, 114. Second connecting plate, 115. Third connecting plate, 12. Reinforcing beam frame, 121. First longitudinal bar, 122. Second longitudinal bar, 123. Third longitudinal bar, 124. Connecting bolt sleeve, 13. First connecting bar, 131. Connecting part, 14. Second connecting bar, 141. Bending section, 15. First connecting plate, 16. Fastener, 2. Formwork column, 21. Reinforcing column frame. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0026] like Figure 1 , Figure 2 As shown, the mold beam 1 of this utility model includes a mold shell 11, a steel beam frame 12, and a first connecting bar 13. The steel beam frame 12 is fixed in the mold shell 11, and the first connecting bar 13 is disposed in the steel beam frame 12. The first connecting bar 13 can move along the length direction of the mold shell 11 so that the first connecting bar 13 can be completely retracted into the mold shell 11, or a portion of the first connecting bar 13 can extend out to one side of the length direction of the mold shell 11. The first connecting bar 13 extending out of the mold shell 11 forms a connecting part 131 for inserting the steel column frame 21. When installing the formwork beam 1, the first connecting rib 13 is moved so that it is completely retracted into the formwork 11. This avoids interference between the first connecting rib 13 protruding outside the formwork 11 and the steel column frame 21, facilitating the installation of the formwork beam 1. After the formwork beam 1 is installed, the first connecting rib 13 is moved so that a portion of it extends out to one side of the formwork 11 along its length. The first connecting rib 13 extending out of the formwork 11 forms a connecting part 131, which ensures a firm connection between the formwork beam 1 and the column of the formwork 11. In this invention, the connecting part 131 can be set on the connecting rib, instead of being entirely set on the longitudinal reinforcement of the steel beam frame 12. This facilitates the installation of the formwork beam 1 and ensures a firm connection between the beam and column joints.

[0027] The first connecting bar 13 can be installed in the steel beam frame 12 by snap-fitting, binding, or movable insertion. In this embodiment, the first connecting bar 13 is connected to the steel beam frame 12 by binding. After the formwork beam 1 is hoisted, the first connecting bar 13 is loosened and then moved so that the first connecting bar 13 extends out of the formwork 11 and inserts into the steel column frame 21. All longitudinal bars of the formwork beam 1 can be set to not protrude outside the formwork 11, and multiple first connecting bars 13 can be set, that is, the lap between the steel column frame 21 and the steel beam frame 12 depends entirely on the first connecting bar 13; or, according to the design structure of the steel beam and column, only some of the longitudinal bars that interfere with the steel beam and column can be set shorter, and the first connecting bar 13 can be set at the shorter longitudinal bars, while the longitudinal bars in the remaining parts can be set longer, that is, the lap between the steel column frame 21 and the steel beam frame 12 is formed by the first connecting bar 13 and some of the longitudinal bars.

[0028] Before hoisting the formwork beam 1, a support frame needs to be erected. After the support frame is erected, the formwork beam 1 is hoisted onto the support frame, which provides temporary support for the formwork beam 1. After the formwork beam 1 is hoisted, its inner cavity connects with the inner cavity of the formwork column 11 to form a pouring cavity. Concrete is then poured into the pouring cavity to achieve the overall connection between the formwork beam 1 and the formwork column 11. After the connecting part 131 is inserted into the reinforcing column frame 21 and before pouring, the first connecting bar 13 is welded to the reinforcing beam frame 12, and the connecting part 131 is welded and fixed to the reinforcing column frame 21.

[0029] In this embodiment, the steel beam frame 12 includes a first longitudinal bar 121 and a second longitudinal bar 122 extending along the length direction of the formwork 11. A first connecting bar 13 is movably connected to the outside of the first longitudinal bar 121. The formwork beam 1 also includes a second connecting bar 14 and a connecting threaded sleeve 124. The end of the second longitudinal bar 122 is provided with a first threaded section, and the first end of the second connecting bar 14 is provided with a second threaded section. The first threaded section is threadedly inserted into one end of the connecting threaded sleeve 124, and the second threaded section is configured to be threadedly inserted into the other end of the connecting threaded sleeve 124. After hoisting the formwork beam, the second connecting bar 14 is screwed onto the connecting threaded sleeve 124, eliminating the need to weld the second connecting bar 14 and improving construction efficiency.

[0030] In this embodiment, the end of the second connecting bar 14 furthest from the second threaded section is provided with a bent section 141. The bent section 141 can increase the anchorage force of the second connecting bar 14 in the cast-in-place body. In other embodiments of this utility model, the end of the second connecting bar 14 furthest from the second threaded section is provided with a third threaded section. Specifically, for beam-column joints where beams are connected to both sides of the column, the length of the second connecting bar 14 is set to be relatively long, and a second threaded section and a third threaded section are respectively provided at both ends of the second connecting bar 14. The middle part of the second connecting bar 14 passes through the steel column frame 21, and the two ends of the second connecting bar 14 are respectively connected to the second longitudinal bars 122 in two adjacent steel beam frames 12 through the second threaded section and the third threaded section.

[0031] In this embodiment, the formwork beam 1 further includes a first connecting plate 15 and fasteners 16. The first connecting plate 15 includes a first plate-shaped portion and a second plate-shaped portion arranged vertically. The first plate-shaped portion is fixedly connected to the reinforcing beam frame 12, and the fasteners 16 fasten the second plate-shaped portion and the formwork 11. The first connecting plate 15 is an angle steel plate, which ensures a firm connection between the reinforcing beam frame 12 and the formwork 11, and the fastening method facilitates construction.

[0032] In this embodiment, the steel beam frame 12 also includes a third longitudinal bar 123. The end of the third longitudinal bar 123 protrudes out of the formwork 11. The third longitudinal bar 123 is set at a position that does not interfere with the steel column frame 21. This design can reduce the number of first longitudinal bars 121 and second longitudinal bars 122, improve construction efficiency, and ensure that the beam-column joint is firmly connected.

[0033] In this embodiment, the formwork 11 includes a first template 111, a second template 112, and a third template 113. The first template 111 is horizontally arranged, and the second template 112 and the third template 113 are respectively fixed on both sides of the width direction of the first template 111. The first template 111, the second template 112, and the third template 113 enclose an upward-facing groove-shaped space, and the reinforcing beam frame 12 is arranged in the groove-shaped space. Specifically, the first template 111, the second template 112, and the third template 113 are all non-removable templates, that is, the first template 111, the second template 112, and the third template 113 form the outer structure of the beam-and-beam structure after pouring. Specifically, the first template 111, the second template 112, and the third template 113 are fiber-reinforced concrete slabs. Fiber-reinforced concrete slabs are boards made by pressing cement as a binder and inorganic fibers, inorganic minerals, and admixtures as raw materials. They have strong bonding force with concrete and can form an integral structure with the poured body.

[0034] In this embodiment, the mold shell 11 further includes a second connecting plate 114 and a third connecting plate 115, both of which are disposed in the groove-shaped space. The second connecting plate 114 is disposed at the corner between the first template 111 and the second template 112, and includes a third plate-shaped portion and a fourth plate-shaped portion arranged vertically. The third plate-shaped portion is fixedly connected to the first template 111, and the fourth plate-shaped portion is fixedly connected to the second template 112. The third connecting plate 115 is disposed at the corner between the first template 111 and the third template 113, and includes a fifth plate-shaped portion and a sixth plate-shaped portion arranged vertically. The fifth plate-shaped portion is fixedly connected to the first template 111, and the sixth plate-shaped portion is fixedly connected to the third template 113.

[0035] An embodiment of a beam-column joint, such as... Figure 3 , Figure 4 As shown, the above-mentioned mold beam 1 also includes a mold column 11, the mold column 11 having a steel column frame 21, and the connecting part 131 of the mold beam 1 is inserted into the steel column frame 21.

[0036] Furthermore, both sides of the horizontally opposite columns of the formwork 11 are provided with formwork beams 1, and the formwork beams 1 located on both sides of the column of the formwork 11 are defined as the first formwork beam 1 and the second formwork beam 1, respectively. The connecting part 131 extends into the steel beam frame 12 of the steel column frame 21 and the second formwork beam 1.

[0037] In summary, the molded beam 1 of this utility model includes a molded shell 11, a steel beam frame 12, and a first connecting bar 13. The steel beam frame 12 is fixed in the molded shell 11, and the first connecting bar 13 is connected to the steel beam frame 12. The first connecting bar 13 can move along the length of the molded shell 11. When installing the molded beam 1, moving the first connecting bar 13 so that it is completely retracted into the molded shell 11 can prevent the first connecting bar 13 protruding outside the molded shell 11 from interfering with the steel column frame 21, thus facilitating the installation of the molded beam 1. After the molded beam 1 is installed... Then, the first connecting rib 13 is moved so that a part of the first connecting rib 13 extends out to one side of the length direction of the mold shell 11. The first connecting rib 13 extending out of the mold shell 11 forms a connecting part 131. The connecting part 131 can ensure that the connection between the mold shell beam 1 and the column of the mold shell 11 is firm. In this utility model, the connecting part 131 of the mold shell beam 1 can be set on the connecting rib, instead of setting all the connecting part 131 on the longitudinal reinforcement of the steel beam frame 12. This is beneficial to the installation of the mold shell beam 1 and ensures that the connection of the beam and column joint is firm.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A type of molded beam (1), characterized in that, It includes a mold shell (11), a steel beam frame (12), and a first connecting bar (13); the steel beam frame (12) is fixed in the mold shell (11), and the first connecting bar (13) is disposed in the steel beam frame (12). The first connecting bar (13) is configured to be movable along the length direction of the mold shell (11) so that the first connecting bar (13) can be retracted into the mold shell (11) or partially extended to one side of the length direction of the mold shell (11). The first connecting bar (13) extending out of the mold shell (11) forms a connecting part (131) for inserting into the steel column frame (21).

2. The molded beam (1) according to claim 1, characterized in that, The steel beam frame (12) includes a first longitudinal bar (121) and a second longitudinal bar (122) extending along the length direction of the formwork (11), and the first connecting bar (13) is movably connected to the outside of the first longitudinal bar (121); The molded beam (1) further includes a second connecting rib (14) and a connecting threaded sleeve (124). The end of the second longitudinal rib (122) is provided with a first threaded section, and the first end of the second connecting rib (14) is provided with a second threaded section. The first threaded section is threadedly inserted into one end of the connecting threaded sleeve (124), and the second threaded section is configured to be threadedly inserted into the other end of the connecting threaded sleeve (124).

3. The molded beam (1) according to claim 2, characterized in that, The second connecting rib (14) has a bent section (141) at the end away from the second threaded section.

4. The molded beam (1) according to claim 2, characterized in that, The second connecting rib (14) has a third threaded section at the end away from the second threaded section.

5. The molded beam (1) according to claim 1, characterized in that, The formwork beam (1) further includes a first connecting plate (15) and a fastener (16). The first connecting plate (15) includes a first plate-shaped part and a second plate-shaped part arranged vertically. The first plate-shaped part is fixedly connected to the steel beam frame (12), and the fastener (16) is fastened to the second plate-shaped part and the formwork (11).

6. The molded beam (1) according to claim 1, characterized in that, The mold shell (11) includes a first template (111), a second template (112) and a third template (113). The first template (111) is arranged horizontally, and the second template (112) and the third template (113) are respectively fixed on both sides of the width direction of the first template (111). The first template (111), the second template (112) and the third template (113) enclose an upward-facing groove-shaped space, and the steel beam frame (12) is set in the groove-shaped space.

7. The molded beam (1) according to claim 6, characterized in that, The mold shell (11) further includes a second connecting plate (114) and a third connecting plate (115), both of which are disposed in the groove-shaped space; The second connecting plate (114) is disposed at the corner between the first template (111) and the second template (112). The second connecting plate (114) includes a third plate-shaped part and a fourth plate-shaped part arranged vertically. The third plate-shaped part is fixedly connected to the first template (111), and the fourth plate-shaped part is fixedly connected to the second template (112). The third connecting plate (115) is located at the corner between the first template (111) and the third template (113). The third connecting plate (115) includes a fifth plate-shaped part and a sixth plate-shaped part arranged vertically. The fifth plate-shaped part is fixedly connected to the first template (111), and the sixth plate-shaped part is fixedly connected to the third template (113).

8. A beam-column joint, characterized in that, Includes the formwork beam (1) and formwork column (11) as described in any one of claims 1 to 7, wherein the formwork column (11) has a steel column frame (21) and the connecting part (131) of the formwork beam (1) is inserted into the steel column frame (21).

9. The beam-column joint according to claim 8, characterized in that, The mold shell (11) column is provided with mold shell beams (1) on both sides of the horizontal opposite sides. The mold shell beams (1) located on both sides of the mold shell (11) column are defined as the first mold shell beam (1) and the second mold shell beam (1). The connecting part (131) extends into the steel beam frame (21) and the steel beam frame (12) of the second mold shell beam (1).

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