CN216713927U - Precast concrete elevator standard festival based on steel constructs bolted connection node - Google Patents
Precast concrete elevator standard festival based on steel constructs bolted connection node Download PDFInfo
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- CN216713927U CN216713927U CN202123130805.2U CN202123130805U CN216713927U CN 216713927 U CN216713927 U CN 216713927U CN 202123130805 U CN202123130805 U CN 202123130805U CN 216713927 U CN216713927 U CN 216713927U
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Abstract
The utility model relates to a prefabricated concrete elevator standard knot based on steel structure bolt connecting nodes, and belongs to the field of assembly type constructional engineering. The prefabricated standard joint comprises a first assembly and a second assembly which are hollow and have the same cross section size, U-shaped steel bars which are vertically arranged are uniformly distributed in a barrel shear wall of the first assembly and the second assembly respectively, the top ends of the U-shaped steel bars are exposed out of the top surface of the barrel shear wall, the bottom ends of the U-shaped steel bars are exposed out of the bottom surface of the barrel shear wall, corner connection embedded parts are arranged at four corners of the top surface and the bottom surface of the barrel shear wall of the first assembly and the bottom surface of the second assembly respectively, a middle connection embedded part is arranged in the middle of the barrel shear wall of the first assembly and the bottom surface of the second assembly, the corner connection embedded part on the top surface of the first assembly and the corner connection embedded part on the bottom surface of the second assembly are connected through high-strength steel bolts, and the middle connection embedded part on the top surface of the first assembly and the middle connection embedded part on the bottom surface of the second assembly are connected through high-strength bolts. The utility model is convenient to construct and install and can be widely applied to constructional engineering.
Description
Technical Field
The utility model relates to an assembled concrete additional elevator shaft based on horizontal splicing nodes, in particular to a precast concrete elevator standard node based on steel structure bolt connecting nodes.
Background
At present, the assembly type building is greatly developed, and the elevator shaft with the main structure additionally arranged on the elevator is also constructed in a low-pollution and industrialized mode by adopting an assembly type construction technology. The elevator main structure additionally arranged at the present stage mostly adopts a steel structure form, the dead weight of a steel structure system is small, piles required by the foundation can be reduced to a certain extent, and the influence on the original building is reduced. However, the steel structure system needs to be maintained regularly, and the maintenance cost and difficulty are high. The assembly type concrete elevator shaft construction technology adopts factory manufacturing, mechanical and automatic production, can improve the component quality and shorten the construction period; the raw materials are saved, the energy consumption is reduced, and the construction waste, the dust and the noise pollution on the construction site are greatly reduced. Meanwhile, the technical structure performance of the fabricated concrete is safe and reliable, and the fabricated concrete has the characteristics of fire prevention, corrosion prevention, simple and convenient later maintenance and the like, and can greatly reduce the maintenance work in the use process of the elevator.
The main connection mode of the currently adopted precast concrete additional elevator shaft is grouting sleeve connection. The grouting sleeve technology brings more uncertain factors, such as: uncontrollable connection quality, long construction period, high cost and the like.
Disclosure of Invention
The utility model aims to provide a precast concrete elevator standard joint based on steel structure bolt connection nodes, which can meet the requirements of controllable quality of the connection nodes, convenience and high efficiency in construction and cost reduction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the prefabricated standard joint comprises a hollow first assembly and a hollow second assembly, wherein the first assembly and the second assembly are identical in cross section size, U-shaped steel bars which are vertically arranged are uniformly distributed in a cylinder shear wall of the first assembly and the second assembly respectively, the top ends of the U-shaped steel bars are exposed out of the top surface of the cylinder shear wall, the bottom ends of the U-shaped steel bars are exposed out of the bottom surface of the cylinder shear wall, corner connection embedded parts are arranged at the four corners of the top surface and the bottom surface of the cylinder shear wall of the first assembly and the bottom surface of the second assembly respectively, a middle part is connected with the embedded parts, the corner connection embedded parts at the top surface of the first assembly and the bottom surface of the second assembly are connected through high-strength bolts, and the middle connection embedded parts at the top surface of the first assembly and the bottom surface of the second assembly are connected through high-strength bolts.
The cross sections of the first component and the second component are rectangular, a notch serving as an elevator door opening is formed in one side shear wall of the first component, and a notch matched with the notch is formed in the corresponding position of the bottom of the same side shear wall of the second component.
The first assembly and the second assembly are provided with two middle connection embedded parts on the door opening shear wall respectively, and the middle connection embedded parts are arranged on the middle part of the door opening-free shear wall respectively.
The corner connecting embedded part is composed of a first horizontal steel plate at the end part and cross-shaped deformed steel with one end connected to the center of the first horizontal steel plate, four bolt holes are formed in four corners of the first horizontal steel plate respectively, M stress connecting steel bars are welded on four faces of the cross-shaped deformed steel, the stress connecting steel bars connect two corner connecting embedded parts which are in the same assembly and are in the same vertical position together, and M is a multiple of four.
The middle connecting embedded part consists of a second horizontal steel plate at the end part and a vertical steel web plate with one end connected to the middle part of the second horizontal steel plate, two bolt holes are respectively arranged on the second horizontal steel plates at two sides of the vertical steel web plate, N stressed connecting steel bars are respectively welded on two side surfaces of the vertical steel web plate, the two middle connecting embedded parts which are in the same assembly and have the same vertical position are connected together through the stressed connecting steel bars, and N is a multiple of two.
Compared with the prior art, the utility model has the following beneficial effects:
1) the stress of the horizontal abutted seam connecting node is controllable, and the connecting quality can be detected;
2) the construction is simple and convenient, and the operation process is simpler than that of a grouting sleeve;
3) only the corner part of the connecting component is connected with the embedded part and the middle part of the connecting component is connected with the embedded part, so that the positioning is accurate and the installation is convenient;
4) the construction period is shortened, the grouting sleeve can be subjected to the next step of prefabricated standard section construction after being grouted for more than 12 hours, the steel structure connection is not needed, the next step of construction can be directly performed after the connection is completed, and the decoration surface behind the rear plug is treated, so that the overall project propulsion is not influenced.
Drawings
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the construction of the first assembly of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic view of the construction of the second assembly of fig. 1.
Fig. 5 is a top view of fig. 4.
FIG. 6 is a schematic view of a corner joint embedment configuration.
FIG. 7 is a schematic view of a mid-coupling embedment configuration.
FIG. 8 is a schematic view of the connection of corner connection embedments within the first and second assemblies.
FIG. 9 is a schematic view of the connection of the mid-coupling embedments within the first and second assemblies.
Fig. 10 is a schematic diagram of the connection node of fig. 8.
Fig. 11 is a schematic diagram of the connection node of fig. 9.
Detailed Description
Fig. 1 shows the configuration of the present embodiment, and fig. 2 to 5 show the configurations of two components, respectively. The embodiment is formed by installing and connecting a first component 1 and a second component 2. The first module 1 and the second module 2 are hollow, both of which have rectangular cross sections and equal cross-sectional areas. The connecting joint of the first assembly 1 and the second assembly 2 comprises a corner connecting embedded part 3, a middle connecting embedded part 4, a high-strength steel bolt 5, a U-shaped steel bar 6 and a stressed connecting steel bar 7. The middle part of the right side shear wall of the first component 1 is provided with a notch used as an elevator door opening, and the corresponding position in the middle of the bottom of the right side shear wall of the second component 2 is provided with a notch matched with the notch.
A plurality of groups of U-shaped steel bars 61 and 62 arranged in the vertical direction are uniformly arranged in the concrete cylinder shear walls of the first component 1 and the second component 2 from top to bottom, the U-shaped steel bars 61 and 62 are ring anchor steel bars, the top ends of the U-shaped steel bars 61 are exposed out of the top surface of the cylinder shear wall of the first component 1, and the bottom ends of the U-shaped steel bars are exposed out of the bottom surface of the cylinder shear wall of the first component 1. The U-shaped reinforcing bars 62 on the second module 2 are similarly arranged. The overlapping length of the U-shaped reinforcing steel bars needs to meet the relevant regulations of national building standard design atlas 16G 101.
Each assembly comprises 8 corner connecting embedded parts 31 (or 32) and 10 middle connecting embedded parts 41 (or 42), taking the second assembly 2 as an example, wherein 4 corner connecting embedded parts 32 are positioned at four corners of the top surface of the cylinder shear wall of the second assembly 2, 4 corner connecting embedded parts 32 are positioned at four corners of the bottom surface of the cylinder shear wall of the second assembly 2, 3 middle connecting embedded parts 42 are positioned in the middle of the top surface of the cylinder shear wall of the non-door opening surface, 2 middle connecting embedded parts are positioned at two sides of the top surface of the cylinder shear wall of the door opening surface and are adjacent to the corner connecting embedded parts 3, and 3 middle connecting embedded parts 42 are positioned in the middle of the bottom surface of the cylinder shear wall of the non-door opening surface and 2 middle connecting embedded parts are positioned at two sides of the bottom surface of the cylinder shear wall of the door opening surface and are adjacent to the corner connecting embedded parts 3. The corner connection embedment 31 and the middle connection embedment 41 on the first assembly 1 are similarly arranged.
As shown in fig. 6 to 11, the corner connecting embedded part 3 is composed of a first horizontal steel plate 3b at an end and a cross-shaped steel 3a with one end connected to the center of the first horizontal steel plate 3b, four bolt holes are respectively arranged on four corners of the first horizontal steel plate 3b, M stressed connecting steel bars 7 are welded on four faces of the cross-shaped steel 3a, the stressed connecting steel bars 7 connect two corner connecting embedded parts 3 with the same vertical position in the first assembly 1 and the second assembly 2 together, M is a multiple of four, the number of M in this embodiment is 4, and there are 4 stressed connecting steel bars 7. According to the actual situation, the forced connecting steel bars 7 can be arranged into 8 or 12 … …, which are welded on four surfaces of the cross-shaped steel 3a to form a group of 2 or 3 … …. The middle connecting embedded part 4 is composed of a second horizontal steel plate 4b at the end part and a vertical steel web plate 4a with one end connected to the middle part of the second horizontal steel plate, two bolt holes are respectively arranged on the second horizontal steel plates 4b at two sides of the vertical steel web plate 4a, N stress connecting steel bars 7 are respectively welded on two side surfaces of the vertical steel web plate 4a, the stress connecting steel bars 7 connect the embedded parts 4 in the first assembly 1 and the second assembly 2 and at the upper and lower middle parts with the same vertical position, N is a multiple of two, and the number of N is 2 in the embodiment. According to practical conditions, the stressed connecting steel bars 7 can be arranged into 4 or 6 … … which are welded on two side surfaces of the vertical steel web plate 4 a.
The corner connecting embedded part 31 of the top surface of the first assembly 1 is connected with the corner connecting embedded part 32 of the bottom surface of the second assembly 2 through high-strength bolts 5, and the middle connecting embedded part 41 of the top surface of the first assembly 1 is connected with the middle connecting embedded part 42 of the bottom surface of the second assembly 2 through high-strength steel bolts 5.
The corner connecting embedded parts 31 and 31, the middle connecting embedded parts 41 and 42 and the high-strength steel bolt 5 are selected according to the predicted stress. The sizes of the welding seams of the corner connecting embedded parts 31 and 32, the middle connecting embedded parts 41 and 42 and the stressed connecting steel bars 7 are determined according to the tensile strength of the steel bars.
After the first assembly 1 and the second assembly 2 are assembled, the U-shaped reinforcing steel bars 62 extending out of the bottom surface of the second assembly 2 and the U-shaped reinforcing steel bars 61 extending out of the first assembly 1 are in staggered lap joint to form a hoop. When the U-shaped steel bars 61 and 62 forming the hoop are used as the distribution ribs and the stress ribs of the cylinder shear wall, the cross section area and the space of the U-shaped steel bars accord with the regulations of concrete structure design, building structure earthquake resistance design, high-rise building concrete structure technical regulations and prefabricated concrete structure technical regulations.
The first module 1 and the second module 2 are installed from bottom to top in sequence, and can be implemented by adopting a flow construction mode. After the lower assembly is hoisted and fixed by the high-strength steel structure bolt 5, the next prefabricated elevator assembly can be hoisted again. And meanwhile, after the last connecting node is connected by the high-strength steel structure bolt 5, arranging anti-cracking reinforcing steel bars, finally, sealing the connecting node, pouring concrete to seal the connecting node, and finishing the installation and connection of the reformed elevator assembly.
Claims (5)
1. Precast concrete elevator standard festival based on steel constructs bolted connection node, including precast concrete standard festival, its characterized in that: the prefabricated standard joint comprises a first assembly and a second assembly which are hollow and have the same cross section size, U-shaped steel bars which are vertically arranged are uniformly distributed in a barrel shear wall of the first assembly and the second assembly respectively, the top ends of the U-shaped steel bars are exposed out of the top surface of the barrel shear wall, the bottom ends of the U-shaped steel bars are exposed out of the bottom surface of the barrel shear wall, corner connecting embedded parts are arranged at four corners of the top surface and the bottom surface of the barrel shear wall of the first assembly and the bottom surface of the second assembly respectively, a middle connecting embedded part is arranged in the middle of the barrel shear wall of the first assembly and the corner connecting embedded part of the bottom surface of the second assembly and connected through high-strength bolts, and the middle connecting embedded part of the top surface of the first assembly and the middle connecting embedded part of the bottom surface of the second assembly are connected through high-strength steel bolts.
2. The precast concrete elevator standard knot based on steel structure bolted connection node of claim 1, characterized in that: the cross sections of the first component and the second component are rectangular, a notch serving as an elevator door opening is formed in one side shear wall of the first component, and a notch matched with the notch is formed in the corresponding position of the bottom of the same side shear wall of the second component.
3. The precast concrete elevator standard knot based on steel structure bolted connection node of claim 2, characterized in that: two middle connecting embedded parts are respectively arranged on the first assembly shear wall with the door opening and the second assembly shear wall without the door opening, and a middle connecting embedded part is respectively arranged in the middle of each shear wall without the door opening.
4. The precast concrete elevator standard knot based on steel structure bolted connection node of claim 1, characterized in that: the corner connecting embedded part is composed of a first horizontal steel plate at the end part and cross-shaped deformed steel with one end connected to the center of the first horizontal steel plate, four bolt holes are formed in four corners of the first horizontal steel plate respectively, M stress connecting steel bars are welded on four faces of the cross-shaped deformed steel, the stress connecting steel bars connect two corner connecting embedded parts which are in the same assembly and are in the same vertical position together, and M is a multiple of four.
5. The precast concrete elevator standard knot based on steel structure bolted connection node of claim 1, characterized in that: the middle connecting embedded part consists of a second horizontal steel plate at the end part and a vertical steel web plate with one end connected to the middle part of the second horizontal steel plate, two bolt holes are respectively arranged on the second horizontal steel plates at two sides of the vertical steel web plate, N stressed connecting steel bars are respectively welded on two side surfaces of the vertical steel web plate, the two middle connecting embedded parts which are in the same assembly and have the same vertical position are connected together through the stressed connecting steel bars, and N is a multiple of two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130805.2U CN216713927U (en) | 2021-12-14 | 2021-12-14 | Precast concrete elevator standard festival based on steel constructs bolted connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130805.2U CN216713927U (en) | 2021-12-14 | 2021-12-14 | Precast concrete elevator standard festival based on steel constructs bolted connection node |
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| CN216713927U true CN216713927U (en) | 2022-06-10 |
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| CN202123130805.2U Active CN216713927U (en) | 2021-12-14 | 2021-12-14 | Precast concrete elevator standard festival based on steel constructs bolted connection node |
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| CN (1) | CN216713927U (en) |
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2021
- 2021-12-14 CN CN202123130805.2U patent/CN216713927U/en active Active
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