A kind of shell column layered pouring beam-column joint and construction method

Abstract

The application discloses a kind of shell column layered pouring beam-column connection joint and construction method, it is related to the technical field of building structure construction, it includes shell column body and composite beam body, the column cavity is arranged in the shell column body, installation window for installing composite beam body is arranged on the lateral wall of shell column body, the installation window is communicated with the column cavity inside shell column body, node plate for fixing composite beam body is arranged at installation window, and connecting reinforcement group for connecting composite beam body, grouting sleeve is fixedly arranged in the column cavity and at installation window, the grouting sleeve is penetrated connecting reinforcement group, and the grouting sleeve is used for the pipe for injection grouting to pass through.The application has the effect of improving the pouring quality when pouring concrete in the column cavity of shell column body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structure construction, and in particular to a beam-column connecting joint for layered pouring of a shell column and a construction method. BACKGROUND

[0002] The shell column is a square composite column formed by a plurality of four-corner square steel pipes and corrugated side plates, and by pouring concrete in the steel shell. After the steel truss floor slab is installed, concrete is generally poured into the shell column. When pouring the concrete in the shell column, the concrete in the four-corner square steel pipes is poured first, and then the concrete in the large cavity in the middle of the shell column is poured. Self-compacting concrete is used in the four-corner square steel pipes, and ordinary concrete is used in the large cavity in the middle.

[0003] A window for installing a beam body is usually provided on the shell column, and a lower joint connecting plate for connecting the beam body is provided at the window. A plurality of connecting steel bars for connecting the beam body are usually provided in the shell column at the position of the window, resulting in a relatively narrow gap at the connecting joint of the shell column and the beam body. When pouring the concrete into the cavity in the middle of the shell column, a direct pouring method from the top of the column downward is generally used.

[0004] However, during the pouring of the concrete, the concrete at the bottom of the column often segregates due to a large free-falling height of the concrete. In addition, the steel shell is a form that cannot be removed, and the pouring condition of the internal concrete cannot be observed. Therefore, the compactness of the concrete in the shell column is low, and there is a serious quality risk. SUMMARY

[0005] In order to improve the pouring quality of the concrete in the shell column, the present application provides a beam-column connecting joint for layered pouring of a shell column and a construction method.

[0006] In a first aspect, the present application provides a beam-column connecting joint for layered pouring of a shell column, which adopts the following technical solution:

[0007] A beam-column connecting joint for layered pouring of a shell column, comprising a shell column body and a composite beam body. The shell column body is internally provided with a column cavity. An installation window for installing the composite beam body is provided on the side wall of the shell column body. The installation window is in communication with the column cavity inside the shell column body. A joint plate for fixing the composite beam body and a connecting steel bar group for connecting the composite beam body are provided at the installation window. A grouting sleeve is fixedly provided in the column cavity at the installation window. The grouting sleeve penetrates the connecting steel bar group, and the grouting sleeve is used for the passage of a grouting pipe.

[0008] Optionally, a reinforcing steel bar is also fixedly provided in the column cavity at the installation window. The reinforcing steel bar is fixedly connected with the grouting sleeve.

[0009] Optionally, the combined beam body comprises a main body section and connecting sections slidingly arranged on both sides of the main body section, and the connecting sections are used for being inserted into the installation window.

[0010] Optionally, a connecting steel member is fixedly arranged in the column cavity and at the installation window position, the connecting steel member is provided with an insertion slot for inserting the connecting section, a clamping steel sleeve is slidingly arranged in the insertion slot along the length direction of the crust column, the clamping steel sleeve is provided with a clamping portion, the connecting section is provided with a clamping slot for inserting the clamping portion, and the connecting steel member is provided with a driving member for driving the clamping steel sleeve to slide.

[0011] Optionally, the driving member comprises a grouting floating plate, the grouting floating plate is slidingly arranged on the connecting steel member along the length direction of the crust column, the grouting floating plate is fixedly provided with a pushing portion, and the pushing portion is fixedly connected with the clamping steel sleeve.

[0012] Optionally, a structure frame body is further fixedly arranged on the side wall of the crust column and at the installation window position, and the main body section of the combined beam body is arranged in the structure frame body and fixed with the structure frame body.

[0013] Optionally, an inner frame body is arranged in the structure frame body, the main body section of the combined beam body is used for being inserted into the inner frame body, a plurality of arc-shaped steel plates are fixedly arranged on the inner side wall of the structure frame body, hinge blocks are fixedly arranged on the arc surfaces of the arc-shaped steel plates, and the hinge blocks are hingedly connected with the inner frame body.

[0014] In a second aspect, the application provides a construction method of a beam-column connecting joint of a crust column poured in layers, which adopts the following technical scheme:

[0015] A construction method of a beam-column connecting joint of a crust column poured in layers, comprising the following steps:

[0016] S1, after the construction of the crust column body is completed, the combined beam body is arranged at the installation window position of the crust column body, the connecting section of the combined beam body is inserted into the installation window and the insertion slot of the connecting steel member, and the position of the connecting section is adjusted so that the clamping portion arranged on the clamping steel sleeve is accurately aligned with the clamping slot on the connecting section.

[0017] S2, the main body section of the combined beam body is inserted into the inner frame body in the structure frame body, and the main body section is welded and fixed with the inner frame body.

[0018] S3, a grouting pipe for pouring concrete is extended into the column cavity from the top of the crust column body, and extends downward to the bottom of the column cavity through a grouting sleeve, the concrete is conveyed to the column bottom through the grouting pipe, and the grouting pipe is slowly lifted during the pouring of the concrete in the column cavity, so as to realize the pouring of the crust column in layers.

[0019] Optionally, when the concrete in the column cavity increases to a certain amount and the concrete is about to spread over the lower end wall of the grouting sleeve, the gap between the grouting pipe and the grouting sleeve is closed, and then during the pouring process, the concrete is poured into the column cavity from the middle through the grouting pipe and extrudes the concrete in the column cavity to reduce the porosity of the concrete in the column cavity.

[0020] To sum up, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By providing a grouting sleeve in the shell column and making the grouting sleeve pipe penetrate the connecting steel bar group, when pouring concrete into the column cavity, the grouting pipe for pouring concrete extends into the column cavity from the top of the shell column and extends downward to the bottom of the column cavity through the grouting sleeve, the concrete is transported to the column bottom through the grouting pipe, and during the pouring process of the concrete in the column cavity, the grouting pipe is slowly lifted, thereby realizing the layered pouring of the shell column, and effectively avoiding the segregation of the concrete near the bottom of the shell column due to the large free falling height of the concrete during pouring, thereby greatly improving the pouring quality of the concrete in the column cavity of the shell column.

[0022] 2. When the connecting section of the composite beam body is inserted into the installation window, it is inserted into the plug-in slot of the connecting steel member, the position of the connecting section is adjusted, the clamping steel sleeve is accurately positioned with the clamping groove on the connecting section, the concrete in the column cavity contacts the grouting floating plate when the concrete increases to a certain amount, and pushes the grouting floating plate upward, the clamping steel sleeve is pushed to slide by the pushing part, and each clamping part on the clamping steel sleeve is inserted into the corresponding clamping groove of the connecting section, then the grouting floating plate is buried in the concrete by the concrete spreading over the grouting floating plate, and after the concrete is completely solidified, the grouting floating plate and the clamping steel sleeve are fixed, thereby increasing the structural strength of the connecting joint between the composite beam body and the shell column.

[0023] 3. When the connecting section of the composite beam body is inserted into the installation window, the main section of the composite beam body is inserted into the inner frame body in the structure frame body, and the main section is welded and fixed with the inner frame body, when the connecting joint position between the shell column and the composite beam body is deformed due to the influence of load or earthquake and other factors, the load on the main section of the composite beam body is transmitted to the arc-shaped steel plate through the inner frame body and the hinge block, the arc-shaped steel plate buffers the inner frame body through the counterforce generated by its own deformation, avoids the possibility of brittle fracture at the joint between the composite beam body and the shell column, effectively improves the ductility of the structure at the whole joint, and reduces the force of the composite beam body on the shell column, thereby improving the seismic resistance of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0025] Figure 2 is Figure 1 is an enlarged view of part A in figure 1;

[0026] Figure 3 is a partial structural schematic diagram of an embodiment of the present application, mainly used to express the internal structure of the crust column body;

[0027] Figure 4 is a partial structural schematic diagram of an embodiment of the present application, mainly used to express the mounting relationship between the connecting steel member and the composite beam body.

[0028] Mark explanation: 1, crust column body; 11, column cavity; 12, mounting window; 13, node plate; 14, connecting steel group; 15, grouting sleeve; 16, reinforcing steel bar; 2, composite beam body; 21, main body section; 22, connecting section; 221, clamping groove; 3, structural frame body; 31, inner frame body; 32, arc steel plate; 321, hinge block; 4, connecting steel member; 41, plug-in groove; 42, clamping steel sleeve; 421, clamping part; 43, grouting floating plate; 431, connecting rod; 432, jacking part. DETAILED DESCRIPTION

[0029] The following will be combined with the Figures 1-4 The present application is further described in detail.

[0030] The present application discloses a crust column layered pouring beam-column joint. Referring to Figure 1 , including a crust column body 1 and a composite beam body 2, the column cavity 11 is arranged inside the crust column body 1, the composite beam body 2 includes a main body section 21 located in the middle and a connecting section 22 slidingly arranged on both sides of the main body section 21 along the length direction of the main body section 21, one end of the connecting section 22 is arranged in the main body section 21, the mounting window 12 is arranged on the corrugated side plate of the crust column body 1 and is in communication with the column cavity 11, and the mounting window 12 is arranged on the corrugated side plate at the same position of the jacket column body, the mounting window 12 is used for inserting the connecting section 22, and the width of the mounting window 12 is greater than the width of the connecting section 22.

[0031] Referring to Figure 1 , 2 , the structural frame body 3 is fixedly arranged on the side wall of the crust column body 1 and located at the position of the mounting window 12, the structural frame body 3 corresponds to the mounting window 12 one by one, and the structural frame body 3 is welded and fixed with the square steel tube at the four corners of the crust column body 1, the inner frame body 31 is arranged in the structural frame body 3, the inner frame body 31 is matched with the main body section 21 of the composite beam body 2, a plurality of arc steel plates 32 are fixedly arranged on the inner side wall of the structural frame body 3, the arc steel plates 32 are made of elastic steel, the hinge blocks 321 are fixedly arranged on the arc surface of the arc steel plates 32, and the hinge blocks 321 are hinged with the inner frame body 31.

[0032] When the connecting section 22 of the composite beam body 2 is inserted into the installation window 12, the main body section 21 of the composite beam body 2 is inserted into the inner frame 31 of the structural frame body 3, and the main body section 21 is welded and fixed with the inner frame 31. When the connecting node position of the shell column body 1 and the composite beam body 2 is deformed due to the influence of load or earthquake and other factors, the load borne by the main body section 21 of the composite beam body 2 is transmitted to the arc-shaped steel plate 32 through the inner frame 31 and the hinge block 321, and the arc-shaped steel plate 32 buffers the inner frame 31 through the counterforce generated by its own deformation, thereby avoiding the possibility of brittle fracture at the node of the composite beam body 2 and the shell column body 1, effectively improving the ductility of the structure at the node, reducing the force of the composite beam body 2 on the shell column body 1, and further improving the seismic resistance of the overall structure.

[0033] Referring to Figure 1 , 3 , the node plate 13 is fixedly arranged at the lower opening wall of each installation window 12, and the node plate 13 is horizontally arranged. After the connecting section 22 is inserted into the installation window 12, the lower side plate of the connecting section 22 is placed on the node plate 13 and welded with the node plate 13. The connecting steel bar group 14 is arranged in the column cavity 11 and at the position of the installation window 12. The connecting steel bar group 14 includes a plurality of horizontally arranged connecting steel bars. The installation window 12 is reinforced by the connecting steel bar group 14. After the connecting section 22 is inserted into the installation window 12, the connecting steel bars are welded and fixed with the lower side plate of the connecting section 22.

[0034] Referring to Figure 3 , the grouting sleeve 15 is fixedly arranged in the column cavity 11 and at the position of the installation window 12. The grouting sleeve 15 penetrates the connecting steel bar group 14 and extends downward by a distance. The reinforcing steel bar 16 is also fixedly arranged in the column cavity 11 and at the position of the installation window 12. The reinforcing steel bar 16 is fixedly connected with the grouting sleeve 15 and fixes the grouting sleeve 15. When multiple layers of composite beam bodies 2 need to be arranged on the same shell column body 1, the positions of the grouting sleeves 15 at each layer of installation windows 12 correspond to each other.

[0035] When pouring concrete into the column cavity 11, the grouting pipe for pouring concrete is inserted into the column cavity 11 from the top of the shell column body 1 and extends downward to the bottom of the column cavity 11 through the grouting sleeve 15. The concrete is transported to the column bottom through the grouting pipe. During the pouring process of the concrete in the column cavity 11, the grouting pipe is slowly lifted, thereby realizing the layered pouring of the shell column, and effectively avoiding the segregation of the concrete near the bottom of the shell column body 1 due to the large free falling height of the concrete.

[0036] Referring to Figure 3 , 4The connecting steel member 4 is fixedly arranged in the column cavity 11 at the position of the installation window 12, and the connecting steel member 4 is provided with a plurality of insertion grooves 41 for inserting the connecting segments 22, and the number of the insertion grooves 41 on the connecting steel member 4 is consistent with the number of the installation windows 12 at the position, and each of the insertion grooves 41 is in communication with each other, and the insertion grooves 41 correspond to the installation windows 12 one by one.

[0037] Referring to Figure 4 The clamping steel sleeve 42 is slidably arranged in the insertion groove 41 along the length direction of the shell column body 1, one connecting steel member 4 corresponds to one clamping steel sleeve 42, and the clamping steel sleeve 42 simultaneously slides in each of the insertion grooves 41, the clamping steel sleeve 42 is provided with a plurality of clamping portions 421, the clamping portions 421 correspond to the insertion grooves 41 one by one, and the clamping portions 421 are located in the corresponding insertion grooves 41, and the connecting segment 22 is provided with a clamping groove 221 for inserting the clamping portion 421.

[0038] Referring to Figure 4 The connecting steel member 4 is provided with a driving member for driving the clamping steel sleeve 42 to slide, the driving member includes a grouting floating plate 43, the grouting floating plate 43 is slidably arranged at the bottom of the connecting steel member 4 along the length direction of the shell column body 1, the grouting floating plate 43 is internally provided with a cavity, the grouting floating plate 43 is fixedly provided with a connecting rod 431, the side wall of the connecting steel member 4 is provided with a sliding groove along the length direction of the shell column body 1, a sliding block is slidably arranged in the sliding groove, the cross section of the sliding block is T-shaped, the sliding groove is matched with the sliding block, the connecting steel member is fixedly connected with the sliding block, the grouting floating plate 43 is fixedly provided with a pushing portion 432, the pushing portion 432 penetrates the insertion groove 41 and is fixedly connected with the bottom wall of the clamping steel sleeve 42.

[0039] When the connecting segment 22 of the composite beam body 2 is inserted into the installation window 12 and the insertion groove 41 of the connecting steel member 4, the position of the connecting segment 22 is adjusted, the clamping portion 421 provided on the clamping steel sleeve 42 is accurately aligned with the clamping groove 221 on the connecting segment 22, when the concrete in the column cavity 11 increases to a certain amount and contacts the grouting floating plate 43, the grouting floating plate 43 is pushed up, the clamping steel sleeve 42 is slid by the pushing portion 432, each of the clamping portions 421 on the clamping steel sleeve 42 is inserted into the corresponding clamping groove 221 of the connecting segment 22, then the concrete overflows the grouting floating plate 43 and embeds the grouting floating plate 43 in the concrete, after the concrete is completely solidified, the grouting floating plate 43 and the clamping steel sleeve 42 are fixed, and each of the connecting segments 22 at the same position of the shell column body 1 is connected into a whole through the clamping steel sleeve 42, thereby increasing the structural strength of the connecting joint between the composite beam body 2 and the shell column body 1.

[0040] The implementation principle of the shell column layered pouring beam-column joint embodiment of the present application is as follows: a grouting sleeve 15 is arranged in the shell column body 1, and the grouting sleeve pipe penetrates the connecting steel bar group 14; when pouring concrete into the column cavity 11, the grouting pipe for pouring concrete is inserted into the column cavity 11 from the top of the shell column body 1 and extends downward to the bottom of the column cavity 11 through the grouting sleeve 15; the concrete is conveyed to the column bottom through the grouting pipe; during the pouring process of the concrete in the column cavity 11, the grouting pipe is slowly lifted, so that the shell column is layered poured, and the segregation phenomenon of the concrete near the bottom of the shell column body 1 is effectively avoided during the pouring of the concrete, thereby greatly improving the pouring quality of the concrete in the column cavity 11 of the shell column body 1.

[0041] The shell column layered pouring beam-column joint construction method embodiment of the present application also discloses a construction method of the shell column layered pouring beam-column joint, which comprises the following steps.

[0042] S1, after the shell column body 1 is constructed, the composite beam body 2 is installed at the installation window 12 position of the shell column body 1, the connecting section 22 of the composite beam body 2 is inserted into the installation window 12 and the insertion slot 41 of the connecting steel member 4, the position of the connecting section 22 is adjusted, and the clamping part 421 provided on the clamping steel sleeve 42 is accurately aligned with the clamping slot 221 on the connecting section 22.

[0043] S2, the main body section 21 of the composite beam body 2 is inserted into the inner frame 31 of the structural frame 3, and the main body section 21 and the inner frame 31 are welded and fixed.

[0044] S3, the grouting pipe for pouring concrete is inserted into the column cavity 11 from the top of the shell column body 1 and extends downward to the bottom of the column cavity 11 through the grouting sleeve 15; the concrete is conveyed to the column bottom through the grouting pipe; during the pouring process of the concrete in the column cavity 11, the grouting pipe is slowly lifted, so that the shell column is layered poured.

[0045] When the concrete in the column cavity 11 increases to a certain amount and the concrete is about to overflow the grouting sleeve 15, the gap between the grouting pipe and the grouting sleeve 15 is closed, and then during the pouring process of the concrete, the concrete is poured into the column cavity 11 from the middle through the grouting pipe and extrudes the concrete in the column cavity 11, so as to reduce the void ratio of the concrete in the column cavity 11 and further improve the pouring quality of the concrete in the column cavity 11.

[0046] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A shell column cast-in-place segmental construction beam-column joint, characterized in that: The application relates to a combined column-beam body, which comprises a shell column body (1) and a combined beam body (2), wherein the shell column body (1) is internally provided with a column cavity (11), a mounting window (12) for mounting the combined beam body (2) is arranged on the side wall of the shell column body (1) and communicates with the column cavity (11) in the shell column body (1), a node plate (13) for fixing the combined beam body (2) is arranged at the mounting window (12), a connecting steel bar group (14) for connecting the combined beam body (2) is arranged at the mounting window (12), a grouting sleeve (15) is fixedly arranged in the column cavity (11) and at the mounting window (12), the grouting sleeve (15) penetrates the connecting steel bar group (14), and the grouting sleeve (15) is used for penetrating a grouting pipe. The combined beam body (2) comprises a main body section (21) and connecting sections (22) which are slidably arranged on both sides of the main body section (21) and are used for being inserted into the mounting window (12). A connecting steel member (4) is fixedly arranged in the column cavity (11) and at the mounting window (12), the connecting steel member (4) is provided with an insertion slot (41) for inserting the connecting section (22), a clamping steel sleeve (42) is slidably arranged in the insertion slot (41) along the length direction of the shell column body (1), the clamping steel sleeve (42) is provided with a clamping portion (421), the connecting section (22) is provided with a clamping slot (221) for inserting the clamping portion (421), and the connecting steel member (4) is provided with a driving member for driving the clamping steel sleeve (42) to slide.

2. The beam-to-column connection node of claim 1, wherein: A reinforcing steel bar (16) is also fixedly arranged in the column cavity (11) and at the mounting window (12), and the reinforcing steel bar (16) is fixedly connected with the grouting sleeve (15).

3. The beam-to-column connection node of claim 1, wherein: The driving member comprises a grouting floating plate (43) which is slidably arranged on the connecting steel member (4) along the length direction of the shell column body (1), and the grouting floating plate (43) is fixedly provided with a pushing portion (432) which is fixedly connected with the clamping steel sleeve (42).

4. The beam-to-column connection node of claim 3, wherein: A structure frame body (3) is also fixedly arranged on the side wall of the shell column body (1) and at the mounting window (12), and the main body section (21) of the combined beam body (2) is arranged in the structure frame body (3) and is fixed with the structure frame body (3).

5. The shell column cast-in-place segmental construction beam-column joint according to claim 4, wherein: The structure frame body (3) is provided with an inner frame body (31), the main body section (21) of the combined beam body (2) is used for being inserted into the inner frame body (31), a plurality of arc-shaped steel plates (32) are fixedly arranged on the inner side wall of the structure frame body (3), the arc-shaped steel plates (32) are fixedly provided with hinge blocks (321) on the arc surfaces, and the hinge blocks (321) are hinged with the inner frame body (31).

6. A construction method of a layered cast-in-place beam-column joint based on the shell column layered cast-in-place beam-column joint of claim 5, characterized in that, The application further relates to a combined column-beam body installation method, which comprises the following steps: S1, after the construction of the shell column body (1) is completed, the combined beam body (2) is installed at the installation window (12) of the shell column body (1), the connecting section (22) of the combined beam body (2) is inserted into the installation window (12) and the insertion slot (41) of the connecting steel member (4), the position of the connecting section (22) is adjusted, and the clamping groove (221) on the connecting section (22) is accurately aligned with the clamping part (421) on the clamping steel sleeve (42); S2, the main body section (21) of the combined beam body (2) is inserted into the inner frame body (31) of the structure frame body (3), and the main body section (21) is welded and fixed with the inner frame body (31); S3, the grouting pipe for pouring concrete is inserted into the column cavity (11) from the top of the shell column body (1) and extends downward to the bottom of the column cavity (11) through the grouting sleeve (15), the concrete is conveyed to the column bottom through the grouting pipe, and the grouting pipe is slowly lifted during the pouring process of the concrete in the column cavity (11), so that the shell column is poured in layers.

7. The construction method of a shell column layered pouring beam-column joint node according to claim 6, characterized in that: When the concrete in the column cavity (11) increases to a certain amount, and the concrete is about to overflow the lower end wall of the grouting sleeve (15), the gap between the grouting pipe and the grouting sleeve (15) is closed, and then during the pouring process of the concrete, the concrete is poured into the column cavity (11) from the middle through the grouting pipe, and the concrete in the column cavity (11) is extruded, so that the porosity of the concrete in the column cavity (11) is reduced.

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