CN220908679U - Sliding expansion joint structure for beam column bracket connection in assembled concrete building - Google Patents
Sliding expansion joint structure for beam column bracket connection in assembled concrete building Download PDFInfo
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- CN220908679U CN220908679U CN202322026148.XU CN202322026148U CN220908679U CN 220908679 U CN220908679 U CN 220908679U CN 202322026148 U CN202322026148 U CN 202322026148U CN 220908679 U CN220908679 U CN 220908679U
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Abstract
The utility model discloses a sliding expansion joint structure for connecting beam column brackets in an assembled concrete building, which comprises a precast concrete column, rectangular brackets arranged on one side of the concrete column, precast concrete beams and expansion joints, and is characterized by further comprising: an upper slide assembly, a inner slide assembly, and a lower slide assembly; the precast concrete beam is including being the rectangle and the overlap joint piece of being connected with the beam end of precast concrete beam, precast concrete beam passes through the overlap joint piece overlap joint on the bracket, so that the expansion joint is left between precast concrete beam and bracket, overlap joint piece and the precast concrete post. The utility model not only can ensure the bearing capacity and the connection stability of the beam column bracket connection, but also can not influence the assembly construction of the beam column bracket connection, and can ensure that the beam column bracket connection has certain deformation resistance so as to improve the safety of the beam column bracket connection in the process of changing the day-night temperature difference and earthquake.
Description
Technical Field
The utility model belongs to the technical field of constructional engineering, and particularly relates to a sliding expansion joint structure for beam column bracket connection in an assembled concrete building.
Background
The concrete building structure comprises a cast-in-situ structure and an assembled structure, most of the concrete building structures at present adopt cast-in-situ structures, but the cast-in-situ structures are required to be subjected to the steps of die assembly, pouring, die disassembly and the like, and the concrete is required to be maintained to meet the strength requirement, so that the cast-in-situ construction has the problems of long engineering period, complex quality control and high cost. The assembled structure is a building assembled by prefabricated concrete members on a construction site, and has the advantages of high construction speed, little restriction by climatic conditions, labor and cost saving and high building quality.
In fabricated concrete construction, the beam and column connection technique is an important one. The bracket connection is a mode of beam column connection, namely, the bracket connection is a supporting and fixing structure outside the column body, and the upper plate or the beam is lapped on the surface of the supporting and fixing structure and is further bolted by bolts. Bracket connection has the advantages of high bearing capacity and quick construction, and is widely applied to actual engineering construction at present.
At present, in the construction of beam column bracket connection in an assembled concrete building, only bearing capacity and connection stability of the bracket connection are generally considered, but deformation resistance of the beam column bracket connection under the action of day and night temperature change or repeated earthquake load is not considered, so that the problem that when the bracket connection is applied to the assembled concrete building, if adverse environmental conditions are encountered, a large potential safety hazard exists is caused.
Disclosure of utility model
In view of the above problems, the present utility model aims to provide a sliding expansion joint structure for beam-column bracket connection in an assembled concrete structure, which can ensure the bearing capacity and connection stability of the beam-column bracket connection, and can not affect the assembly construction of the beam-column bracket connection, and can enable the beam-column bracket connection to have a certain deformation resistance so as to improve the safety of the beam-column bracket connection in the process of changing day and night temperature difference and earthquake.
The utility model is realized by the following technical scheme.
A slidingtype expansion joint structure for beam column bracket is connected in assembled concrete building, including precast concrete post, set up in the rectangle bracket of concrete stand one side, precast concrete roof beam, expansion joint, its characterized in that still includes: an upper slide assembly, a inner slide assembly, and a lower slide assembly;
The precast concrete beam comprises a rectangular overlap joint block connected with the beam end of the precast concrete beam, and the precast concrete beam is overlapped on the bracket through the overlap joint block, so that an expansion joint is reserved between the precast concrete beam and the bracket and between the overlap joint block and the precast concrete column;
The upper sliding assembly comprises an upper sliding bottom plate fixedly arranged on the upper end face of the overlap block, an upper sliding top plate which is arranged on the top face of the upper sliding bottom plate in a pasting mode and one end of which is fixedly connected with the side wall of the precast concrete column, upper sliding holes which are formed in the upper sliding top plate and the upper sliding bottom plate, and upper sliding bolts which penetrate through the upper sliding holes and are embedded in the upper end face of the overlap block;
The inner sliding assembly comprises an inner sliding bottom plate fixedly arranged on the upper end face of the bracket, and an inner sliding top plate fixedly arranged on the lower end face of the lap joint block and slidably lapped on the inner sliding bottom plate;
The lower sliding assembly comprises a lower sliding first top plate fixedly arranged on the lower end face of the bracket, a lower sliding second top plate fixedly arranged on the lower end face of the precast concrete beam end and with the bottom face flush with the bottom face of the lower sliding first top plate, a lower sliding bottom plate fixedly connected with the side wall of the precast concrete column at one end and arranged on the lower sliding first top plate and the lower sliding second top plate, and lower sliding holes penetrating through the lower sliding holes and embedded in the bracket or the lower sliding bolts of the lower end face of the precast concrete beam.
As a specific technical scheme, the overlap joint blocks and the beam ends of the precast concrete beams are integrally precast.
As a specific technical scheme, the lower sliding assembly further comprises a lower sliding middle partition plate; one end of the lower sliding middle partition plate is arranged between the lower sliding first top plate and the lower sliding bottom plate in a sliding manner, the upper end face of the other end of the lower sliding middle partition plate is fixedly connected with the lower sliding second top plate, and the lower end face of the lower sliding middle partition plate is in sliding connection with the lower sliding bottom plate.
As a specific technical scheme, the lower sliding middle partition plate is correspondingly provided with a lower sliding hole.
As a specific technical scheme, the lower end face of the lower sliding middle partition plate and the upper end face of the upper sliding bottom plate are provided with a propping convex strip, the lower end face of the upper sliding top plate and the upper end face of the lower sliding bottom plate are provided with limiting grooves corresponding to the propping convex strip, the propping convex strip is embedded in the limiting grooves and can slide transversely and freely, and the side walls of the propping convex strip and the side walls of the limiting grooves which are positioned on the same side are arranged in an inclined mode at the same angle.
As a specific technical scheme, the number of the jacking convex strips arranged on the lower end face of the lower sliding middle partition plate is 3, and the jacking convex strips are positioned at the two ends and the middle part of the lower end face of the lower sliding middle partition plate; the number of the jacking convex strips on the upper end face of the upper sliding bottom plate is 2, and the jacking convex strips are positioned at two ends of the upper end face of the upper sliding bottom plate.
As a specific technical scheme, the lower sliding component further comprises a positioning rod; the locating rod penetrates through the lower sliding second top plate, the upper end of the locating rod is embedded into the precast concrete beam, and the lower end of the locating rod is detachably inserted into the locating hole of the lower sliding middle partition plate.
As a specific technical scheme, the lap joint edge of the lower sliding second top plate and the lower sliding middle partition plate is welded in a full-welded mode.
As a specific technical scheme, a right supporting block is arranged on the right side of the upper end face of the inner sliding bottom plate, and the top face of the right supporting block is in sliding abutting connection with the lower end face of the inner sliding top plate; the left side of the lower end face of the inner sliding top plate is provided with a left lower pressing block, and the bottom face of the left lower pressing block is in sliding abutting connection with the upper end face of the inner sliding bottom plate.
As a specific technical scheme, the one ends of the lower sliding bottom plate and the upper sliding top plate are fixedly connected with positioning plates, and the positioning plates are fixed on the side walls of the precast concrete columns through embedded bolts.
As a specific technical scheme, the upper sliding bottom plate and the inner sliding top plate are respectively embedded in the upper end face and the lower end face of the splicing block and are connected with a reinforcing steel bar net in the splicing block through embedded reinforcing steel bars; the inner sliding bottom plate and the lower sliding first top plate are respectively embedded in the upper end face and the lower end face of the bracket and are connected with the reinforcing steel bar net in the bracket through embedded reinforcing steel bars.
1) According to the utility model, on the basis of arranging the expansion joint, the bearing capacity and the connection stability of beam column bracket connection can be ensured by utilizing the cooperation of the upper sliding component, the inner sliding component and the lower sliding component, and the installation of the upper sliding component, the inner sliding component and the lower sliding component can not influence the assembly construction of beam column bracket connection.
2) According to the utility model, the sliding seam is formed in the inner sliding assembly, the left lower pressing block and the right supporting block, wherein the sliding seam can form an avoidance space for the movement of the right supporting block and the left lower pressing block, the right supporting block can be utilized to support the inner sliding top plate, and the left lower pressing block can be utilized to support the inner sliding top plate in a stressed manner, so that when the beam end of the precast concrete beam transversely moves leftwards or rightwards, the lap joint area of the inner sliding bottom plate and the inner sliding top plate is not changed, and the stability of the bearing capacity of bracket connection can be ensured.
3) According to the utility model, the top supporting convex strips and the limiting grooves which are mutually embedded are arranged in the upper sliding component and the lower sliding component, so that the transverse force of the transverse movement of the precast concrete beam can be converted into the vertical force which is respectively applied to the upper sliding top plate and the lower sliding bottom plate of the upper end face and the lower end face of the beam end and respectively tightly pressed against the nuts of the upper sliding bolt and the lower sliding bolt, and the upper sliding component and the lower sliding component are always kept in a fastened and stable connection state after the precast concrete beam transversely moves, so that the beam column bracket is connected to form deformation resistance.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a bottom view of the present utility model;
FIG. 5 is a right side view of the present utility model;
FIG. 6 is an enlarged schematic view of a portion of the structure of FIG. 1;
Fig. 7 is a schematic view of the structure of the precast concrete beam according to the present utility model when it moves laterally to the left;
FIG. 8 is an enlarged schematic view of the partial structure of FIG. 7;
FIG. 9 is a state diagram of the utility model in use;
the meaning of each mark in the above figures is:
Precast concrete column 1;
Bracket 2;
a precast concrete beam 3;
a joint block 4;
An upper slide assembly 5, an upper slide bottom plate 501, an upper slide top plate 502, an upper slide hole 503, and an upper slide bolt 504;
An inner slide assembly 6, an inner slide bottom plate 601, a right top support block 6011, a left lower press block 6012, and an inner slide top plate 602;
a lower slide assembly 7, a lower slide first top plate 701, a lower slide second top plate 702, a lower slide bottom plate 703, lower slide holes 704, lower slide bolts 705, a lower slide middle partition 706, a positioning rod 707, and a positioning hole 708;
an expansion joint 8;
A positioning plate 9;
A top support convex strip 10;
a limit groove 11;
overlapping edge 12.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Examples
Referring to fig. 1 to 9, the sliding expansion joint structure for beam column bracket connection in an assembled concrete building comprises a precast concrete column 1, a rectangular bracket 2 arranged on one side of the concrete column 1, a precast concrete beam 3, an upper sliding component 5, a sliding component 6, a lower sliding component 7 and an expansion joint 8;
The precast concrete beam 3 comprises a rectangular overlap block 4 connected with the beam end of the precast concrete beam 3, the overlap block 4 is rectangular and connected with the beam end of the precast concrete beam 3, and the precast concrete beam 3 is overlapped on the bracket 2 through the overlap block 4, so that an expansion joint 8 is reserved between the precast concrete beam 3 and the bracket 2 and between the overlap block 4 and the precast concrete column 1; preferably, the top of the overlap block 4 is flush with the top of the beam end of the precast concrete beam 3, and the height of the overlap block 4 is half of the height of the precast concrete beam; the bracket 2 and the precast concrete column 1 are integrally precast;
The upper sliding assembly 5 comprises an upper sliding bottom plate 501 fixedly arranged on the upper end face of the overlap block 4, an upper sliding top plate 502 which is arranged on the top face of the upper sliding bottom plate 501 in a pasting mode and one end of which is fixedly connected with the side wall of the precast concrete column 1, an upper sliding hole 503 which is arranged on the upper sliding top plate 502 and the upper sliding bottom plate 501, and an upper sliding bolt 504 which penetrates through the upper sliding hole 503 and is pre-buried on the upper end face of the overlap block 4;
The inner sliding assembly 6 comprises an inner sliding bottom plate 601 fixedly arranged on the upper end surface of the bracket 2, and an inner sliding top plate 602 fixedly arranged on the lower end surface of the lap joint block 4 and slidably lapped on the inner sliding bottom plate 601;
The lower sliding assembly 7 comprises a lower sliding first top plate 701 fixedly arranged on the lower end surface of the bracket 2, a lower sliding second top plate 702 fixedly arranged on the lower end surface of the beam end of the precast concrete beam 3 and with the bottom surface flush with the bottom surface of the lower sliding first top plate 701, a lower sliding bottom plate 703 arranged on the bottom surfaces of the lower sliding first top plate 701 and the lower sliding second top plate 702 and with one end fixedly connected with the side wall of the precast concrete column 1, lower sliding holes 704 arranged on the lower sliding first top plate 701, the lower sliding second top plate 702 and the lower sliding bottom plate 703, and lower sliding bolts 705 penetrating through the lower sliding holes 704 and pre-buried on the lower end surface of the bracket 2 or the precast concrete beam 3;
referring to fig. 6-9, in general, the length of the precast concrete 3 is much longer than the length of the bracket 2, so that in the beam-column bracket connection, the lateral displacement change mainly comes from the precast concrete beam, for example, the lateral displacement of the precast concrete beam is caused by the environmental temperature difference change or repeated earthquake conditions, and based on the structural arrangement of the present utility model, because in the upper sliding assembly 5, the upper sliding bottom plate 501 and the upper sliding top plate 502 are bolted with the upper sliding bolt 504 through the upper sliding hole 503, and the hole length and the hole width of the upper sliding hole 503 are controlled to be larger than the diameter of the upper sliding bolt 504, so that a certain sliding space can be ensured at the same time of realizing the connection with the concrete column 1 on the upper end surface of the joint block 4; in the lower sliding assembly 7, the lower sliding first top plate 701, the lower sliding second top plate 702 and the lower sliding bottom plate 703 are bolted with the lower sliding bolts 705 through the lower sliding holes 704, and the hole length and the hole width of the lower sliding holes 704 are controlled to be larger than the diameters of the lower sliding bolts 705, so that the lower end face of the beam end of the precast concrete beam 3 can be ensured to have a certain sliding space while being connected with the concrete upright 1 and the bracket 2; since the inner slide top plate 602 is slidably overlapped on the inner slide bottom plate 601 in the inner slide assembly 6, the overlapped block 4 is laterally movably overlapped on the bracket 2; in sum, through the cooperation of last slip subassembly 5, interior slip subassembly 6 and lower slip subassembly 7, not only can guarantee the overlap joint piece 4 on the precast concrete roof beam 3 and the stability of being connected with bracket 2 to guarantee the bearing capacity of beam column connection, can also realize the lateral sliding removal of precast concrete roof beam simultaneously, and avoid bracket and the concrete face direct contact of roof beam to lead to the condition emergence of concrete structure destruction.
In order to facilitate assembly and construction and to ensure the connection strength of the overlap block 4 and the precast concrete beam 3, further, in a preferred embodiment, the overlap block 4 is integrally precast with the beam end of the precast concrete beam 3.
Further, in a preferred embodiment, the lower slide assembly 7 further comprises a lower slide intermediate plate 706; one end of the lower sliding middle partition plate 706 is slidably arranged between the lower sliding first top plate 701 and the lower sliding bottom plate 703, the upper end surface of the other end is fixedly connected with the lower sliding second top plate 702, and the lower end surface is slidably connected with the lower sliding bottom plate 703; a lower sliding hole 704 is correspondingly formed in the lower sliding middle partition plate 706; the lower end surface of the lower sliding middle partition plate 706 and the upper end surface of the upper sliding bottom plate 501 are provided with a propping convex strip 10, the lower end surface of the upper sliding top plate 502 and the upper end surface of the lower sliding bottom plate 703 are provided with a limiting groove 11 corresponding to the propping convex strip 10, the propping convex strip 10 is embedded in the limiting groove 11 and can slide transversely and freely, and the side walls of the propping convex strip 10 and the side walls of the limiting groove 11 which are positioned on the same side are obliquely arranged at the same angle; in addition, the horizontal spacing between the mutually embedded jacking convex strips 10 and the limiting grooves 11 on the side walls on the same side can be reasonably set according to the needs, and the spacing is generally less than or equal to half of the width of the expansion joint 8; preferably, the side walls of the jacking convex strips 10 and the side walls of the limiting grooves 11 are arranged at the same inclination angle of 15-30 degrees;
Based on the above structure, referring to fig. 6-8, when the precast concrete beam generates a right lateral displacement change, that is, the precast concrete beam sequentially drives the lower sliding second top plate 702 and the lower sliding middle partition plate 706 to move horizontally to the right, and at this time, the lower sliding bottom plate 703 is fixed on the side wall of the precast concrete column 1, so that the lower sliding bottom plate 703 does not move horizontally to the right, and in the process that the lower sliding middle partition plate 706 moves relative to the lower sliding bottom plate 703, the connection of the lower sliding assembly 7 is loosened; however, at the same time, the top supporting raised line 10 arranged on the lower end surface of the lower middle sliding partition 706 moves horizontally and rightwards along with the lower middle sliding partition 706, but the position of the limit groove 11 arranged on the lower sliding bottom plate 703 is not changed, so that after the top supporting raised line 10 moves a certain distance, the side wall of the inclined arrangement of the top supporting raised line is abutted against the side wall of the limit groove 11, so that a part of transverse force generated by the movement of the precast concrete beam is converted into vertical force to be applied to the lower sliding bottom plate 703, and the lower sliding bottom plate 703 is tightly propped against the nuts of the lower sliding bolts 705, so as to offset the problem that the connection of the lower sliding assembly 7 is loosened due to the transverse movement of the precast concrete beam, thereby ensuring a certain transverse deformation resistance, and ensuring the bearing capacity and connection stability of the bracket at the same time;
Similarly, when the beam end of the precast concrete beam generates a rightward lateral displacement change, the overlap block 4 arranged on the precast concrete beam drives the upper sliding bottom plate 501 to move horizontally rightward, and at this time, the upper sliding top plate 502 is fixed on the side wall of the precast concrete column 1, so that the upper sliding top plate 502 does not move horizontally rightward, and in the process of moving the upper sliding bottom plate 501 relative to the upper sliding top plate 502, the connection of the upper sliding assembly 5 is loosened; however, at the same time, the top supporting raised line 10 disposed on the upper end surface of the upper sliding bottom plate 501 will move horizontally and rightward along with the upper sliding bottom plate 501, but the position of the limit groove 11 disposed on the upper sliding top plate 502 will not change, so that after the top supporting raised line 10 moves a certain distance, the side wall of the inclined disposition will abut against the side wall of the limit groove 11, so that a part of the lateral force generated by the movement of the precast concrete beam is converted into a vertical force to be applied to the upper sliding top plate 502, and the upper sliding top plate 502 and the nut of the upper sliding bolt 504 are tightly propped against each other, so as to counteract the problem of loosening the connection of the upper sliding assembly 5 caused by the lateral movement of the precast concrete beam;
When the beam end of the precast concrete beam generates left transverse displacement change, the situation is similar to the situation, and the description is omitted here; as is apparent from the above description, in the present utility model, when the beam end of the precast concrete beam is laterally displaced to the left or right, although the connection of the upper and lower sliding assemblies 5 and 7 is loosened, the lateral force of the precast concrete beam is converted into the vertical force by the interaction of the supporting protrusions 10 and the limiting grooves 11, which is applied to the upper and lower sliding top plates 502 and 703 bottom plates of the upper and lower end surfaces of the beam end, respectively, and is respectively tightened with the nuts of the upper and lower sliding bolts 504 and 705, so that the upper and lower sliding assemblies are always maintained in a fastened and stable connection state after the precast concrete beam is laterally moved, thereby allowing the beam column brackets to be connected to form a deformation resistance.
In order to make the vertical force uniformly applied to the upper sliding top plate 502 and the lower sliding bottom plate 703 of the upper and lower end surfaces of the beam end respectively when the jacking convex strips 10 interact with the limit grooves 11, further, in a preferred embodiment, referring to fig. 1-4, the number of the jacking convex strips 10 arranged on the lower end surface of the lower sliding middle baffle 704 is 3, and the jacking convex strips are positioned at two ends and the middle of the lower end surface of the lower sliding middle baffle 704; the number of the top supporting ribs 10 is 2 on the upper end surface of the upper sliding bottom plate 501, and the top supporting ribs are located at two ends of the upper end surface of the upper sliding bottom plate 501.
In order to make the connection between the lower sliding second top plate 702 and the lower sliding middle partition 706 more stable, and to make the lower sliding middle partition 706 detachable from the lower sliding second top plate 702, further, in a preferred embodiment, referring to fig. 1 and 6, the lower sliding assembly 7 further includes a positioning rod 707; the positioning rod 707 penetrates through the lower sliding second top plate 702, and the upper end of the positioning rod is embedded into the precast concrete beam 3, and the lower end of the positioning rod is detachably inserted into the positioning hole 708 of the lower sliding middle partition 706.
Further, in a preferred embodiment, referring to FIG. 4, the lower sliding second top plate 702 is welded to the overlapping edge 12 of the lower sliding middle bulkhead 706 by a full weld; after lower sliding middle partition 706 is inserted into positioning rod 707 through positioning hole 708, the overlapping edges of lower sliding second top plate 702 and lower sliding middle partition 706 can be welded in a full-welded manner, so that the connection between lower sliding second top plate 702 and lower sliding middle partition 706 is more stable.
In order to reduce the processing cost, the inner sliding bottom plate 601 and the inner sliding top plate 602 are generally made of common flat steel plates, but when the beam end of the precast concrete beam moves leftwards or rightwards, the overlap area of the inner sliding bottom plate 601 and the inner sliding top plate 602 will change, so that the bearing capacity of the bracket connection will change, further, in a preferred embodiment, referring to fig. 1 and 6-8, a right top supporting block 6011 is fixedly arranged on the right side of the upper end surface of the inner sliding bottom plate 601, and the top surface of the right top supporting block 6011 is in sliding abutting connection with the lower end surface of the inner sliding top plate 602; a left lower pressing block 6012 is fixedly arranged on the left side of the lower end surface of the inner sliding top plate 602, and the bottom surface of the left lower pressing block 6012 is in sliding contact with the upper end surface of the inner sliding bottom plate 601; a sliding joint 6013 with the same width as the expansion joint 8 is reserved between the left lower pressing block 6012 and the right top support block 6011; the right support block 6011 may be welded to the inner sliding bottom plate 601, or the right support block 6011 and the inner sliding bottom plate 601 may be integrally formed by stamping a thick steel plate; the left lower pressing block 6012 can be welded and fixed on the inner sliding top plate 602, and the left lower pressing block 6012 and the inner sliding top plate 602 can be integrally formed by stamping a thick steel plate; based on the above structure, through setting up sliding slit 6013, can form for the removal of right top stay 6011 and left lower briquetting 6012 and dodge the space, utilize right top stay 6011 to prop the interior slip roof 602 to and utilize left lower briquetting 6012 to carry out the atress to the interior slip roof 602 and support, when making precast concrete beam's beam end produce left or right lateral displacement, interior slip bottom plate 601 can not produce the change with interior slip roof 602's overlap area, thereby can guarantee that the bearing capacity of bracket connection is stable.
In order to facilitate the installation and fixation of the lower sliding bottom plate 703 and the upper sliding top plate 502, further, in a preferred embodiment, referring to fig. 1-4, one ends of the lower sliding bottom plate 703 and the upper sliding top plate 502 are fixedly connected with a positioning plate 9, and the positioning plate 9 is fixed on the side wall of the precast concrete column 1 through pre-buried bolts.
Further, in a preferred embodiment, referring to fig. 1, the upper sliding bottom plate 501 and the inner sliding top plate 602 are respectively embedded in the upper end surface and the lower end surface of the overlap block 4, and are connected with the reinforcement mesh in the overlap block 4 through embedded reinforcement bars; the inner sliding bottom plate 601 and the lower sliding first top plate 701 are respectively embedded in the upper end face and the lower end face of the bracket 2, and are connected with the reinforcing mesh in the bracket 2 through embedded bars.
The construction process of the sliding expansion joint structure comprises the following steps:
S1, firstly, manufacturing an upper sliding bottom plate 501, an inner sliding top plate 602, a right top supporting block 6011, an inner sliding bottom plate 601, a lower sliding first top plate 701, a left lower pressing block 6012, a lower sliding middle partition 706 and other components according to design requirements;
s2, pouring and prefabricating the precast concrete column 1, the precast concrete beam 3, the bracket 2 and the overlap block 4 in a factory;
The bracket 2 and the precast concrete column 1 are integrally precast, and the overlap block 4 and the precast concrete beam 3 are integrally precast; when pouring the overlap block 4, respectively embedding an upper sliding bottom plate 501 and a inner sliding top plate 602 on the upper end face and the lower end face of the overlap block 4, connecting the upper sliding bottom plate 501 and the inner sliding top plate 602 with a reinforcing steel bar net in the overlap block 4 through embedded reinforcing steel bars, and simultaneously welding a left lower pressing block 6012 on the left side of the lower end face of the inner sliding top plate 602; when the bracket 2 is poured, the inner sliding bottom plate 601 and the lower sliding first top plate 701 are respectively embedded in the upper end face and the lower end face of the bracket 2, and are connected with a reinforcing steel bar net in the bracket 2 through embedded steel bars, and meanwhile, the right top support block 6011 is welded on the right side of the upper end face of the inner sliding bottom plate 601; when the precast concrete beam 3 is poured, the lower sliding second top plate 702 and the positioning rod 707 penetrate through the lower sliding second top plate 702 to be embedded in the lower end face of the beam end of the precast concrete beam 3; when the precast concrete column 1 is poured, bolts are embedded in the design position of one side of the precast concrete column 1 connected with the bracket 2, and a positioning plate 9 is installed;
S3, paying off and positioning the precast concrete column 1, installing the precast concrete column 1 at a designed position, and then hoisting the precast concrete beam 3, so that the lap joint blocks 4 at two ends of the precast concrete beam 3 are lapped on the bracket 2, and an expansion joint 8 is reserved between the precast concrete beam 3 and the bracket 2 and between the lap joint blocks 4 and the precast concrete column 1; at this time, by the cooperation of the right top support block 6011 and the left lower press block 6012, the inner sliding top plate 602 is slidably lapped on the inner sliding bottom plate 601, and a sliding seam 6013 with the same width as the expansion seam 8 is left between the left lower press block 6012 and the right top support block 6011, so that the installation of the inner sliding assembly 6 is completed;
S4, one end of an upper sliding top plate 502 is welded with a positioning plate 9, the upper sliding top plate 502 is attached to the top surface of an upper sliding bottom plate 501 by utilizing an upper sliding bolt 504, so that a jacking convex strip 10 on a lower sliding bottom plate 703 is centered in a limit groove 11 of the upper sliding top plate 502, and at the moment, the installation of an upper sliding assembly 5 is completed;
One end of a lower sliding middle partition plate 706 is installed on the lower end face of a lower sliding second top plate 702, the lower end of a positioning rod 707 is inserted into a positioning hole 708 of the lower sliding middle partition plate 706, the other end of the lower sliding middle partition plate 706 is attached to the lower end face of a lower sliding first top plate 701, then the lap joint edge of the lower sliding second top plate 702 and the lower sliding bottom plate 703 is welded fully, then one end of the lower sliding bottom plate 703 is welded with a positioning plate 9, the upper end face of the lower sliding bottom plate 703 is attached to the lower end face of the lower sliding middle partition plate 706, a top supporting convex strip 10 on the lower sliding middle partition plate 706 is controlled to be centered in a limiting groove 11 of the lower sliding bottom plate 703, and then the lower sliding first top plate 701, the lower sliding second top plate 702, the lower sliding middle partition plate 706 and the lower sliding bottom plate 703 are installed and fastened by using a lower sliding bolt 705, so that the lower sliding assembly 7 is completed.
Claims (10)
1. A slidingtype expansion joint structure for beam column bracket is connected in assembled concrete building, including precast concrete post, set up in the rectangle bracket of concrete stand one side, precast concrete roof beam, its characterized in that still includes: the upper sliding assembly, the inner sliding assembly, the lower sliding assembly and the expansion joint;
The precast concrete beam comprises a rectangular overlap joint block connected with the beam end of the precast concrete beam, and the precast concrete beam is overlapped on the bracket through the overlap joint block, so that an expansion joint is reserved between the precast concrete beam and the bracket and between the overlap joint block and the precast concrete column;
The upper sliding assembly comprises an upper sliding bottom plate fixedly arranged on the upper end face of the overlap block, an upper sliding top plate which is arranged on the top face of the upper sliding bottom plate in a pasting mode and one end of which is fixedly connected with the side wall of the precast concrete column, upper sliding holes which are formed in the upper sliding top plate and the upper sliding bottom plate, and upper sliding bolts which penetrate through the upper sliding holes and are embedded in the upper end face of the overlap block;
The inner sliding assembly comprises an inner sliding bottom plate fixedly arranged on the upper end face of the bracket, and an inner sliding top plate fixedly arranged on the lower end face of the lap joint block and slidably lapped on the inner sliding bottom plate;
The lower sliding assembly comprises a lower sliding first top plate fixedly arranged on the lower end face of the bracket, a lower sliding second top plate fixedly arranged on the lower end face of the precast concrete beam end and with the bottom face flush with the bottom face of the lower sliding first top plate, a lower sliding bottom plate fixedly connected with the side wall of the precast concrete column at one end and arranged on the lower sliding first top plate and the lower sliding second top plate, and lower sliding holes penetrating through the lower sliding holes and embedded in the bracket or the lower sliding bolts of the lower end face of the precast concrete beam.
2. The sliding expansion joint structure for beam-column bracket connection in an assembled concrete structure according to claim 1, wherein the overlap block is integrally prefabricated with a beam end of the precast concrete beam.
3. The sliding expansion joint structure for beam-column bracket connection in fabricated concrete structures of claim 1, wherein said lower sliding assembly further comprises a lower sliding intermediate deck; one end of the lower sliding middle partition plate is arranged between the lower sliding first top plate and the lower sliding bottom plate in a sliding manner, the upper end face of the other end of the lower sliding middle partition plate is fixedly connected with the lower sliding second top plate, and the lower end face of the lower sliding middle partition plate is in sliding connection with the lower sliding bottom plate.
4. A sliding expansion joint structure for beam column bracket connection in an assembled concrete building as claimed in claim 3, wherein the lower sliding middle partition plate is correspondingly provided with a lower sliding hole.
5. The sliding expansion joint structure for beam column bracket connection in assembled concrete structures according to claim 3, wherein the lower end face of the lower sliding middle partition plate and the upper end face of the upper sliding bottom plate are provided with a jacking convex strip, the lower end face of the upper sliding top plate and the upper end face of the lower sliding bottom plate are provided with limit grooves corresponding to the jacking convex strip, the jacking convex strip is embedded in the limit grooves and can slide freely transversely, and the side walls of the jacking convex strip and the side walls of the limit grooves which are positioned on the same side are obliquely arranged at the same angle.
6. The sliding expansion joint structure for beam column bracket connection in an assembled concrete building according to claim 5, wherein the number of the top supporting raised strips arranged on the lower end face of the lower sliding middle partition plate is 3, and the top supporting raised strips are positioned at two ends and the middle position of the lower end face of the lower sliding middle partition plate; the number of the jacking convex strips on the upper end face of the upper sliding bottom plate is 2, and the jacking convex strips are positioned at two ends of the upper end face of the upper sliding bottom plate.
7. A sliding expansion joint structure for beam-column bracket connection in a fabricated concrete structure as claimed in claim 3, wherein said lower sliding assembly further comprises a positioning rod; the locating rod penetrates through the lower sliding second top plate, the upper end of the locating rod is embedded into the precast concrete beam, and the lower end of the locating rod is detachably inserted into the locating hole of the lower sliding middle partition plate.
8. The sliding expansion joint structure for beam-column bracket connection in fabricated concrete structures of claim 7, wherein the lap edges of the lower sliding second top plate and the lower sliding middle partition plate are welded in full.
9. The sliding expansion joint structure for beam column bracket connection in an assembled concrete building according to claim 1, wherein a right supporting block is fixedly arranged on the right side of the upper end face of the inner sliding bottom plate, and the top face of the right supporting block is in sliding abutting connection with the lower end face of the inner sliding top plate; a left lower pressing block is fixedly arranged on the left side of the lower end face of the inner sliding top plate, and the bottom face of the left lower pressing block is in sliding abutting connection with the upper end face of the inner sliding bottom plate; and a sliding joint with the width identical to that of the expansion joint is reserved between the left lower pressing block and the right supporting block.
10. The sliding expansion joint structure for beam column bracket connection in an assembled concrete building according to claim 1, wherein one ends of the lower sliding bottom plate and the upper sliding top plate are fixedly connected with positioning plates, and the positioning plates are fixed on the side walls of the precast concrete columns through embedded bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322026148.XU CN220908679U (en) | 2023-07-30 | 2023-07-30 | Sliding expansion joint structure for beam column bracket connection in assembled concrete building |
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| CN202322026148.XU CN220908679U (en) | 2023-07-30 | 2023-07-30 | Sliding expansion joint structure for beam column bracket connection in assembled concrete building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027162A (en) * | 2023-07-30 | 2023-11-10 | 中建五局土木工程有限公司 | Sliding expansion joint structure for beam-column corbel connection in prefabricated concrete buildings |
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2023
- 2023-07-30 CN CN202322026148.XU patent/CN220908679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027162A (en) * | 2023-07-30 | 2023-11-10 | 中建五局土木工程有限公司 | Sliding expansion joint structure for beam-column corbel connection in prefabricated concrete buildings |
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