Novel notch beam connecting joint based on concrete modular integrated building
By employing slotted beam connection nodes in modular integrated buildings, and utilizing steel mesh and concrete pouring technology to connect the beams of adjacent box hulls, the slotted beam connection technology solves the problem of insufficient seismic performance of box hulls during earthquakes in existing technologies. It achieves the connection between adjacent box hulls, addresses the technical issue of the independence of box hulls during earthquakes in existing technologies, realizes the application of this technology, solves the problem of insufficient seismic performance of independent beam structures in box hulls during earthquakes in existing technologies, achieves rapid connection and reliable connection of independent box hulls, and improves the seismic performance of the overall structure.
Patent Information
- Application Number
- CN202422984801.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing modular integrated buildings have insufficient seismic performance during earthquakes because the independent beam structures cannot be effectively connected.
The method uses slotted beam connection nodes, which involves setting splicing slots at the joints of beams in adjacent precast box bodies, and setting steel mesh in the post-cast cavity. Concrete is then poured to form an integral prefabricated multi-span continuous beam. The beams are connected together using steel reinforcement components such as bent steel bars, stirrups, longitudinal reinforcement of beam segments, and connecting sleeves.
This achieves effective connection of beams between adjacent box girder units, improves seismic performance, enables rapid and reliable box girder connection, and enhances the overall seismic performance of the structure.
Smart Images
Figure CN223753481U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to civil engineering structure modularization full assembly type technical field, especially a novel notched beam connecting joint based on concrete modularization integrated building. BACKGROUND
[0002] MiC (Modular Integrated Construction) is an innovative building method that uses prefabricated modular components to integrate building structures and equipment. The building is often divided into modular box units, and the structure, water and electricity, and decoration construction processes are completed in the factory, and assembled on site to realize a more efficient and faster building process. MiC realizes "automobile building", which is the greenest building method with the highest degree of building industrialization.
[0003] MiC is to assemble each modular box unit independently. The beams between each box are relatively independent, and the beams between the boxes are discontinuous. In the event of an earthquake, due to the independent beam structure, adjacent box units cannot be connected together, so the seismic performance of MiC structure cannot be guaranteed. SUMMARY
[0004] The utility model aims at providing a novel notched beam connecting joint based on concrete modularization integrated building, based on modularization integrated building, providing a novel beam joint, which can effectively connect two adjacent independent box beams together, thereby improving the integrity and seismic performance.
[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a novel notched beam connecting joint based on concrete modularization integrated building, comprising a notched beam; wherein: the notched beam is provided with a splicing groove at the beam splicing part of the two adjacent prefabricated boxes; the splicing grooves of the two half notched beams form a post-cast cavity after splicing; a steel mesh frame is arranged in the post-cast cavity; pouring concrete into the post-cast cavity connects the notched beams of the two adjacent prefabricated boxes together to form an integral assembly type multi-span continuous beam.
[0006] Further, as an improvement of the utility model technical scheme, the steel mesh frame comprises bent steel bars, stirrups, beam segment longitudinal reinforcement, lap steel bars or connecting sleeves; the stirrups envelop the beam segment longitudinal reinforcement, lap steel bars or connecting sleeves as a whole; the bent steel bars are laid at the bottom of the notched beam.
[0007] Further, as an improvement of the utility model technical scheme, the notched beam is internally provided with notched beam longitudinal reinforcement.
[0008] Further, as an improvement of the technical scheme of the utility model, the connecting sleeve is adopted for connection in the splicing groove of the two adjacent prefabricated box bodies.
[0009] Further, as an improvement of the technical scheme of the utility model, the cross section of the splicing groove is in U shape.
[0010] Further, as an improvement of the technical scheme of the utility model, the stirrup is a closed stirrup.
[0011] Further, as an improvement of the technical scheme of the utility model, the length of the splicing groove is 1 / 3 of the length of the notched beam.
[0012] The utility model has the following beneficial effects:
[0013] The utility model provides a novel notched beam connecting joint based on concrete modular integrated building, and the novel beam joint of the modular integrated building can effectively connect the beams of the prefabricated box bodies together. The prefabricated box body is completed by pouring in a factory, the two ends of the notched beam are reserved with splicing grooves, the splicing grooves are overlapped with the splicing grooves of adjacent box bodies at a construction site, and the splicing grooves are poured with concrete on site to form a multi-span continuous beam. The utility model is convenient to connect, can ensure rapid connection and reliable connection of the box body, and greatly improves the anti-seismic performance of the modular integrated building. BRIEF DESCRIPTION OF DRAWINGS
[0014] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 It is a structural schematic view of the novel notched beam connecting joint based on concrete modular integrated building provided by the utility model.
[0016] Figure 2 It is a reinforcement elevation view of the novel notched beam connecting joint (adopting overlapping steel bars) based on concrete modular integrated building provided by the utility model.
[0017] Figure 3 It is a schematic view of overlapping steel bars in a post-pouring cavity of the novel notched beam connecting joint based on concrete modular integrated building provided by the utility model.
[0018] Figure 4 It is a schematic view of sleeve connection in a post-pouring cavity of the novel notched beam connecting joint based on concrete modular integrated building provided by the utility model.
[0019] Figure 5 It is a connecting groove side view of the novel notched beam connecting joint based on concrete modular integrated building provided by the utility model.
[0020] Figure 6 is a connecting groove and post-pouring cavity steel bar schematic diagram of a novel notched beam connecting joint based on a concrete modular integrated building.
[0021] In the drawings: 1 - notched beam; 2 - post-pouring cavity; 3 - notched beam longitudinal reinforcement; 4 - lapping steel bar; 5 - connecting sleeve; 6 - splicing groove; 7 - stirrup; 41 - lapping steel bar one; 42 - lapping steel bar two. DETAILED DESCRIPTION
[0022] The utility model will be combined with the drawings and specific embodiments to be explained in detail, hereinafter with the illustrative embodiment of the utility model and the explanation are used to explain the utility model, but not as the limitation of the utility model.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0024] In the utility model, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.
[0025] In addition, in the utility model, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0026] The utility model will be combined with the drawings and specific embodiments to be explained in detail, hereinafter with the illustrative embodiment of the utility model and the explanation are used to explain the utility model, but not as the limitation of the utility model.
[0027] For example, Figures 1 to 6As shown, a new type of notched beam connecting joint based on concrete modular integrated building, including notched beam 1;Wherein: the notched beam 1 is located in the beam splicing part of two adjacent prefabricated boxes is provided with splicing groove 6;Two half edge notched beam splicing groove 6 forms the post pouring cavity 2;The post pouring cavity 2 is provided with steel mesh frame;In the post pouring cavity 2 pours concrete and connects the notched beam of two adjacent prefabricated boxes together to form an integral assembly type multi-span continuous beam.The utility model provides a new type of beam joint of modular integrated building, which can effectively connect the beams of prefabricated boxes together.Prefabricated box is poured in the factory, and the splicing groove 6 is reserved at both ends of the notched beam 1, which is overlapped with the splicing groove 6 of the adjacent box at the construction site, and the concrete is poured in the splicing groove 6 to form a multi-span continuous beam.The utility model is convenient to connect, can ensure rapid connection, and can ensure reliable connection of the box.Greatly improve the seismic performance of modular integrated building.
[0028] It should be noted that the splicing groove 6 can be used as a formwork for new pouring concrete, and the two prefabricated box beams are connected together to form an integral assembly type multi-span continuous beam by pouring concrete in the slot cavity of the splicing groove 6 after adding a steel mesh frame.
[0029] Specifically, in the embodiment, the steel mesh frame includes curved reinforcement, stirrup 7, beam segment longitudinal reinforcement, lap reinforcement 4 or connecting sleeve 5;The stirrup 7 envelopes the beam segment longitudinal reinforcement, lap reinforcement 4 or connecting sleeve 5 as a whole;The curved reinforcement is laid at the bottom of the notched beam 1.It should be noted that the reinforcement ratio of the steel mesh frame is consistent with the reinforcement ratio of the non-splicing part.The curved reinforcement is laid at the bottom of the beam to ensure the shear performance.The stirrup 7 envelopes the steel reinforcement in the beam segment.It should be noted that the notched beam 1 is provided with beam segment longitudinal reinforcement, lap reinforcement 4 (or connecting sleeve 5) and stirrup 7.The stirrup 7 can effectively limit the deformation and damage of the concrete member under the action of earthquake or other actions, and improve the overall stability and seismic capacity of the structure.It should be noted that the lap reinforcement 4 is laid in the post pouring cavity to connect the two half segment notched beams into one.
[0030] Referring to Figure 2 Specifically, in the embodiment, the notched beam 1 is provided with notched beam longitudinal reinforcement 3.It should be noted that the notched beam longitudinal reinforcement 3 mainly bears the longitudinal tensile force or pressure generated when the beam segment is stressed, so that it can bear the load in the vertical direction.
[0031] Referring to Figure 4Specifically, in the embodiment, the connecting sleeves 5 are used to connect the connecting grooves 6 of the two adjacent prefabricated box bodies. It should be noted that the longitudinal reinforcement in the beam span is connected by lap joint or sleeve connection in the two box connecting grooves, so as to improve the overall stability. The connecting sleeves 5 are reserved outside the concrete, so that there is a leveling space for on-site construction, which is beneficial to the operation of twisting the steel bars.
[0032] With reference to Figure 5 Specifically, in the embodiment, the cross section of the connecting groove 6 is in the shape of U.
[0033] With reference to Figure 6 Specifically, in the embodiment, the stirrup 7 is a closed stirrup. It should be noted that the closed stirrup is used in the post-cast cavity, which is beneficial to factory production and on-site installation.
[0034] With reference to Figure 3 Specifically, in the embodiment, the length of the connecting groove 6 is 1 / 3 of the length of the slot beam 1. It should be noted that the slot beams 1 of the two adjacent box bodies are connected together at the position of the post-cast cavity 2, and then the steel bars are added and the concrete is poured to form an integrated fabricated beam. It should be noted that the lap joint steel bars 4 include lap joint steel bar one 41 and lap joint steel bar two 42; the lap joint steel bar one 41 is arranged at the upper part of the post-cast cavity 2, and the lap joint steel bar two 42 is arranged at the lower part, so as to connect the two half slot beams into one whole.
[0035] It should be noted that the construction steps of the new beam joint based on the modular integrated building are as follows:
[0036] Step 1: Make a half slot beam, and leave an “L” type mold for the post-cast cavity 2.
[0037] Step 2: Place the steel bar net beam segment stirrup 7 and the beam segment longitudinal reinforcement in the mold according to the specified position, and connect the longitudinal reinforcement by the connecting sleeve 5 (when the longitudinal reinforcement of the beam segment is connected by lap joint steel bars, the connecting sleeve is not needed), and reserve the connecting sleeve 5 outside the concrete.
[0038] Step 3: Pour the half slot beam in the factory.
[0039] Step 4: When the on-site construction is performed, place the lap joint steel bars 4 in the post-cast cavity 2 (when the longitudinal reinforcement of the beam is connected by the sleeve, the lap joint steel bars are not needed).
[0040] Step 5: After the position of the half slot beam is determined, pour the concrete in the post-cast cavity 2 to form a complete beam.
[0041] The novel beam joint of the modular integrated building can effectively connect the independent beams of the box bodies together. The slot beam 1 of each half is cast in a factory, and the two half beams are overlapped and cast to form a complete beam at a construction site.
[0042] The above detailed description of the technical solutions provided by the embodiments of the present application is provided, and specific examples are applied to describe the principles and implementation manners of the embodiments of the present application. The above description of the embodiments is only applicable to helping understand the principles of the embodiments of the present application. Meanwhile, for the general technical personnel in the field, the embodiments of the present application will have changes in the specific implementation manners and application ranges. In conclusion, the content of the specification should not be understood as a limitation of the present application.
Claims
1. A new type of notched beam connection joint based on concrete modular integrated building, comprising a notched beam; characterized in that: The slot beam is located at the beam splicing part of two adjacent prefabricated box bodies, and a splicing groove is arranged on the beam splicing part; the splicing grooves of two half slot beams are spliced to form a post-pouring cavity; a steel mesh frame is arranged in the post-pouring cavity; and the slot beams of the two adjacent prefabricated box bodies are connected together to form an integral assembly type multi-span continuous beam by pouring concrete in the post-pouring cavity.
2. A new pocket beam connection joint based on concrete modular integrated building according to claim 1, characterized in that: The steel mesh frame comprises bent steel bars, stirrups, beam segment longitudinal steel bars, lap steel bars or connecting sleeves; the stirrups envelop the beam segment longitudinal steel bars, the lap steel bars or the connecting sleeves as a whole; and the bent steel bars are laid on the bottom of the slot beam.
3. A new pocket beam connection joint based on concrete modular integrated building according to claim 1, characterized in that: The slot beam is internally provided with slot beam longitudinal steel bars.
4. A new pocket beam connection joint based on concrete modular integrated building according to claim 2, characterized in that: The connecting sleeves are used to connect the splicing grooves of the two adjacent prefabricated box bodies.
5. A new pocket beam connection joint based on concrete modular integrated building according to claim 1, characterized in that: The cross section of the splicing groove is in the shape of U.
6. A new pocket beam connection joint based on concrete modular integrated building according to claim 2, characterized in that: The stirrups are closed stirrups.
7. A new pocket beam connection joint based on concrete modular integrated building according to claim 1, characterized in that: The length of the splicing groove is 1 / 3 of the length of the slot beam.