Concrete modular superimposed shear wall

Abstract

The utility model provides a concrete modular superimposed shear wall, which relates to the field of building construction, and comprises a slotted superimposed wall formwork, the slotted superimposed wall formwork comprises an upper prefabricated wall formwork and a lower prefabricated wall formwork which are vertically adjacent, a plurality of strip-shaped notches are horizontally arranged at the bottom end of the upper prefabricated wall formwork at intervals, and a plurality of first connecting pieces are arranged at the top of the lower prefabricated wall formwork; the first connecting piece of the lower prefabricated wall formwork is used for being inserted into the strip-shaped notch of the upper prefabricated wall formwork; the upper prefabricated wall formwork comprises two upper wall formworks and a first steel bar structure. The lower prefabricated wall formwork comprises two lower wall formworks and a second steel bar structure. And after the first connecting pieces and the strip-shaped notches are installed in place in a one-to-one correspondence mode, concrete is poured between the two upper wall formworks and between the two lower wall formworks, so that the upper wall formworks, the first steel bar structures, the lower wall formworks, the second steel bar structures and the first connecting pieces form a connected whole. The modular building is simple in structure, reliable in connection and convenient to produce, transport, install and splice, and integrity and safety of the modular building are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a concrete modular composite shear wall. Background Technique

[0002] A shear wall is a structural wall that mainly functions to resist wind and earthquake. A composite shear wall is a commonly used precast component in the construction of prefabricated buildings.

[0003] The existing composite shear walls usually adopt a composite shear wall structure composed of a precast formwork and a cast-in-place layer. For example, in CN209924205U, a simple modular composite steel plate shear wall, a non-assembled integral precast concrete layer with a relatively large volume is used, and a large number of outward-extending steel bar truss bars are arranged on the precast concrete layer, which affects the convenience of management and transportation. Content of the Utility Model

[0004] The utility model provides a concrete modular composite shear wall to solve the technical problems put forward in the above background technique.

[0005] To solve the above technical problems, the utility model discloses a concrete modular composite shear wall, which includes a grooved composite wall form. The grooved composite wall form includes a vertically adjacent upper precast wall form and a lower precast wall form. A plurality of strip-shaped notches are horizontally and spacedly arranged at the bottom end of the upper precast wall form, and a plurality of first connectors are arranged at the top of the lower precast wall form. The strip-shaped notches correspond to the first connectors one by one; among the vertically adjacent upper precast wall form and the lower precast wall form, the first connectors of the lower precast wall form are used to insert into the strip-shaped notches of the upper precast wall form;

[0006] The upper precast wall form includes two upper wall forms arranged horizontally and spacedly, and a first steel bar structure is arranged between the two upper wall forms;

[0007] The lower precast wall form includes two lower wall forms arranged horizontally and spacedly, and a second steel bar structure is arranged between the two lower wall forms;

[0008] After the first connectors and the strip-shaped notches are installed in one-to-one correspondence, concrete is poured between the two upper wall forms and between the two lower wall forms so that the upper wall form, the first steel bar structure, the lower wall form, the second steel bar structure, and the first connectors form a connected whole.

[0009] Preferably, the first connector is a longitudinal connecting steel bar. Longitudinal connecting steel bars are arranged in both of the two lower wall forms in the lower precast wall form, and the lower parts of the longitudinal connecting steel bars are buried in the top of the lower wall forms.

[0010] Preferably, the upper precast wall form includes two upper wall forms arranged horizontally and spacedly from left to right, and a plurality of strip-shaped notches are arranged at the front and rear intervals of the connecting sides of the two upper wall forms 11.

[0011] Preferably, transverse distribution steel bars and longitudinal distribution steel bars are arranged in both the upper wall form and the lower wall form.

[0012] Preferably, the steel bar structure one includes:

[0013] Shear-resistant interface steel bars one, and shear-resistant interface steel bars one are arranged on one side where two upper wall forms of the upper precast wall form are spliced with each other;

[0014] Stirrups for boundary elements one, and stirrups for boundary elements one are arranged on one side where two upper wall forms of the upper precast wall form are spliced with each other.

[0015] Preferably, the steel bar structure two includes:

[0016] Shear-resistant interface steel bars two, and shear-resistant interface steel bars two are arranged on one side where two lower wall forms of the lower precast wall form are spliced with each other;

[0017] Stirrups for boundary elements two, and stirrups for boundary elements two are arranged on one side where two lower wall forms of the lower precast wall form are spliced with each other.

[0018] Preferably, the width a of the strip-shaped notch ranges from 30 ～ to 40 mm. The depth h of the strip-shaped notch is the thickness of the upper precast wall form minus the cover thickness and the steel bar diameter, and the length n is the anchorage length of the steel bar extending into the notch.

[0019] Preferably, in the front-back direction of the upper wall form, the strip-shaped notch is located at the midpoint between two longitudinally distributed steel bars adjacent in the front-back direction in the upper wall form.

[0020] Preferably, the stirrups for boundary elements one extend a certain length from the splicing side of the corresponding upper wall form. When the two upper wall forms are assembled, the stirrups for boundary elements one on the two upper wall forms overlap with each other vertically;

[0021] The stirrups for boundary elements two extend a certain length from the splicing side of the corresponding lower wall form. When the two lower wall forms are assembled, the stirrups for boundary elements two on the two lower wall forms overlap with each other vertically.

[0022] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The modular shear wall with strip-shaped notches cancels a large number of externally extended steel bar truss bars around the wall form, and only evenly arranges several stirrups for boundary elements and shear-resistant interface steel bars on the surface. The structure is simple, the connection is reliable, which is convenient for module production, transportation, installation and splicing, and can effectively improve the integrity and safety of the modular building;

[0025] 2. The prefabricated wall formwork and the cast-in-place layer form a modular composite shear wall. The shear wall is stressed by the longitudinal steel bars in the wall formwork, which reduces the binding of the steel cage. The structural force transmission and force mechanism are clear, and the wall thickness is reduced. It can not only greatly reduce the overall self-weight of the building and increase the internal space, but also effectively reduce the comprehensive cost of the building and break through the key bottleneck that restricts the large-scale promotion of modular buildings;

[0026] 3. The large number of steel truss bars protruding around the module units are eliminated, and there is no need to cross-tie the side walls of the two modules, which avoids the need for on-site decoration of the interior of one of the two modules. This can effectively reduce the difficulty of on-site management of the protection of the finished products inside the modules, greatly improve the degree of industrialization and further shorten the construction period;

[0027] Compared with traditional shear walls, modular shear walls can split the wall into a formwork and a cast-in-place layer while meeting the force requirements. This can effectively reduce the weight of the module, making it easier to transport and hoist, and better promote the development of modular buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is the overall front view of the utility model;

[0030] Figure 2 It is an overall side sectional view of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the strip-shaped notch of the utility model;

[0032] Figure 4 It is a side sectional view of the lower prefabricated wall form of the utility model;

[0033] Figure 5 This is the main view of the steel bar arrangement diagram of the lower prefabricated wall form of the utility model;

[0034] Figure 6 It is a side sectional view of a part of the structure of the upper prefabricated wall form of the utility model;

[0035] Figure 7 This is a connection diagram of the longitudinal connecting steel bars of the utility model in the strip-shaped grooves.

[0036] In the figure: 1. Upper precast wall form; 11. Upper wall form; 12. Reinforcement structure I; 121. Interface shear-resistant reinforcement I; 122. Edge member stirrup I; 2. Lower precast wall form; 21. Lower wall form; 22. Reinforcement structure II; 221. Interface shear-resistant reinforcement II; 222. Edge member stirrup II; 23. Longitudinal connecting reinforcement; 3. Strip-shaped notch; 4. Cast-in-place layer; 5. Transverse distribution reinforcement; 6. Longitudinal distribution reinforcement. Detailed implementation manners

[0037] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.

[0038] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and do not specifically refer to the order or sequence. Nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] The present utility model provides the following embodiments

[0040] Embodiment 1

[0041] The embodiment of the present utility model provides a concrete modularized composite shear wall, as Figure 1 - Figure 2 shown, including a grooved composite wall form. The grooved composite wall form includes a vertically adjacent upper precast wall form 1 and a lower precast wall form 2. A plurality of strip-shaped notches 3 are horizontally and spacedly arranged at the bottom end of the upper precast wall form 1. A plurality of first connectors are arranged at the top of the lower precast wall form 2. The strip-shaped notches 3 and the first connectors correspond one by one; among the vertically adjacent upper precast wall form 1 and lower precast wall form 2, the first connector of the lower precast wall form 2 is used to insert into the strip-shaped notch 3 of the upper precast wall form 1;

[0042] The upper precast wall form 1 includes two upper wall forms 11 arranged horizontally and spacedly, and a reinforcement structure I 12 is arranged between the two upper wall forms 11;

[0043] The lower precast wall form 2 includes two lower wall forms 21 arranged horizontally and spacedly, and a reinforcement structure II 22 is arranged between the two lower wall forms 21;

[0044] After the first connecting members are installed in one-to-one correspondence with the strip-shaped notches 3 and are in place, concrete is poured between the two upper wall forms 11 and between the two lower wall forms 21 so that the upper wall form 11, the first steel bar structure 12, the lower wall form 21, the second steel bar structure 22, and the first connecting members form a connected whole.

[0045] Preferably, the first connecting member is a longitudinal connecting steel bar 23. The two lower wall forms 21 in the lower precast wall form 2 are both provided with longitudinal connecting steel bars 23. The lower part of the longitudinal connecting steel bar 23 is buried in the top of the lower wall form 21. The longitudinal connecting steel bar 23 extending into the strip-shaped notch 3 is pre-buried at the top of the adjacent spliced lower wall form 21, and its position corresponds to the strip-shaped notch 3. The buried and extended lengths are the anchorage lengths. Figure 5 In the longitudinal direction is the up-and-down direction.

[0046] Preferably, the upper precast wall form 1 includes two upper wall forms 11 arranged horizontally at intervals on the left and right. A number of strip-shaped notches 3 are arranged at intervals before and after the connecting sides of the two upper wall forms 11.

[0047] Preferably, both the upper wall form 11 and the lower wall form 21 are provided with transverse distribution steel bars 5 and longitudinal distribution steel bars 6.

[0048] Preferably, the first steel bar structure 12 includes:

[0049] Shear-resistant interface steel bars 121 are arranged on one side of the two upper wall forms 11 of the upper precast wall form 1 that are spliced with each other;

[0050] Edge member stirrups 122 are arranged on one side of the two upper wall forms 11 of the upper precast wall form 1 that are spliced with each other.

[0051] Preferably, the second steel bar structure 22 includes:

[0052] Shear-resistant interface steel bars 221 are arranged on one side of the two lower wall forms 21 of the lower precast wall form 2 that are spliced with each other;

[0053] Edge member stirrups 222 are arranged on one side of the two lower wall forms 21 of the lower precast wall form 2 that are spliced with each other.

[0054] Preferably, the width a of the strip-shaped notch 3 ranges from 30 ～ to 40 mm. The depth h of the strip-shaped notch 3 is the thickness of the upper precast wall form 1 minus the cover thickness and the steel bar diameter, and the length n is the anchorage length of the steel bar extending into the notch.

[0055] The strip-shaped notches 3 are distributed on the preset edges of each upper wall form 11, and the spacing m can be adjusted independently. It can be set that: along the front-back direction of the upper wall form 11, the strip-shaped notches 3 are located at the 1 / 2 position of the longitudinally distributed steel bars 6 adjacent to each other in the front and back in the upper wall form 11. The size of the strip-shaped notches 3 can be adjusted according to the actual situation;

[0056] Preferably, the edge member stirrup one 122 extends a certain length from the splicing side of the corresponding upper wall form 11. When two upper wall forms 11 are assembled, the edge member stirrup one 122 of the two upper wall forms 11 overlaps with each other up and down;

[0057] The edge member stirrup two 222 extends a certain length from the splicing side of the corresponding lower wall form 21. When two lower wall forms 21 are assembled, the edge member stirrup two 222 of the two lower wall forms 21 overlaps with each other up and down, and there is no need to tie the edge member stirrups subsequently, which simplifies the construction process.

[0058] Shear-resistant interface steel bars are arranged on the wall form to strengthen the interaction between the precast wall form and the cast-in-place layer;

[0059] The longitudinal connecting steel bars 23 can shorten the anchorage length by using steel bar rings or increasing the steel bar diameter to increase the steel bar anchorage area, and thus reduce the length of the strip-shaped notches 3.

[0060] The beneficial effects of the above technical solutions are as follows:

[0061] 1. For the modular shear wall provided with strip-shaped notches 3, a large number of externally extended steel bar truss bars around the wall form are cancelled, and only several edge member stirrups and shear-resistant interface steel bars are uniformly arranged on the surface. The structure is simple and the connection is reliable, which is convenient for module production, transportation, installation and splicing, and can effectively improve the integrity and safety of the modular building;

[0062] 2. The precast wall form and the cast-in-place layer form a modular composite shear wall. The shear wall is stressed by the longitudinal steel bars in the wall form, reducing the binding of the steel bar cage. The structure force transmission and force mechanism are clear, and the wall thickness is reduced. It can not only greatly reduce the overall self-weight of the building, increase the internal space, but also effectively reduce the comprehensive cost of the building and break through the key bottleneck restricting the large-scale promotion of modular buildings;

[0063] 3. Since a large number of externally extended steel bar truss bars around the module unit are cancelled, and there is no need for through tie rods between the side walls of the two modules, it is avoided that one of the two modules with tie rods needs on-site post-decoration inside, which can effectively reduce the management difficulty of the finished product protection inside the module on-site, greatly improve the industrialization degree and further shorten the construction period;

[0064] Compared with the traditional shear wall, while meeting the force requirements, the modular shear wall can split the wall into a formwork and a cast-in-place layer, which can effectively reduce the self-weight of the module and thus facilitate transportation and hoisting, and better promote the development of modular buildings.

[0065] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. Concrete modular composite shear wall, characterized by: The slotted composite wall form comprises an upper prefabricated wall form (1) and a lower prefabricated wall form (2) which are vertically adjacent to each other, a plurality of strip-shaped slots (3) are horizontally arranged at intervals at the bottom end of the upper prefabricated wall form (1), a plurality of first connecting members are arranged at the top end of the lower prefabricated wall form (2), and the strip-shaped slots (3) correspond to the first connecting members one by one; in the upper prefabricated wall form (1) and the lower prefabricated wall form (2) which are vertically adjacent to each other, the first connecting member of the lower prefabricated wall form (2) is used to be inserted into the strip-shaped slot (3) of the upper prefabricated wall form (1); The upper prefabricated wall formwork (1) comprises two upper wall formworks (11) arranged horizontally and spaced apart, and a steel bar structure (12) is arranged between the two upper wall formworks (11); The lower prefabricated wall formwork (2) comprises two lower wall formworks (21) arranged horizontally and spaced apart, and a second steel bar structure (22) is arranged between the two lower wall formworks (21); After the first connecting piece and the strip-shaped slot (3) are installed in place in a one-to-one correspondence, concrete is poured between the two upper wall molds (11) and between the two lower wall molds (21) so that the upper wall mold (11), the first steel structure (12), the lower wall mold (21), the second steel structure (22) and the first connecting piece form a connected whole.

2. The concrete modular composite shear wall according to claim 1, characterized in that: The first connecting member is a longitudinal connecting steel bar (23). The two lower wall forms (21) in the lower prefabricated wall form (2) are both provided with the longitudinal connecting steel bar (23). The lower part of the longitudinal connecting steel bar (23) is buried in the top of the lower wall form (21).

3. The concrete modular composite shear wall according to claim 1, characterized in that: The upper prefabricated wall formwork (1) comprises two upper wall forms (11) arranged horizontally at intervals on the left and right sides, and a plurality of strip-shaped notches (3) are arranged at intervals on the connection sides of the two upper wall forms (11).

4. The concrete modular composite shear wall according to claim 3, characterized in that: Transverse distribution steel bars (5) and longitudinal distribution steel bars (6) are arranged in both the upper wall formwork (11) and the lower wall formwork (21).

5. The concrete modular composite shear wall according to claim 1, characterized in that: Steel reinforcement structure one (12) includes: Interface shear steel bar one (121), the interface shear steel bar one (121) is provided on one side of the two upper wall forms (11) of the upper prefabricated wall form (1) where they are spliced ​​to each other; Edge member stirrup one (122), edge member stirrup one (122) is provided on one side of the two upper wall forms (11) of the upper prefabricated wall form (1) that are spliced ​​to each other.

6. The concrete modular composite shear wall according to claim 1, characterized in that: Steel structure 2 (22) includes: Interface shear steel bars (221) are provided on both sides of the two lower wall forms (21) of the lower prefabricated wall form (2) where they are spliced ​​together; Edge member stirrups (222) are provided on both sides of the two lower wall forms (21) of the lower prefabricated wall form (2) where they are spliced ​​together.

7. The concrete modular composite shear wall according to claim 1, characterized in that: The width a of the strip slot (3) is in the range of 30 ～ 40mm, the depth h of the strip notch (3) is the thickness of the upper prefabricated wall form (1) minus the thickness of the protective layer and the diameter of the steel bar, and the length n is the anchorage length of the steel bar extending into the notch.

8. The concrete modular composite shear wall according to claim 1, characterized in that: The strip-shaped notch (3) of the upper wall formwork (11) along the front-to-back direction is located at 1 / 2 of the longitudinal distribution steel bars (6) adjacent to each other in the front and back of the upper wall formwork (11).

9. The concrete modular composite shear wall according to claim 1, characterized in that: The edge member stirrups (122) extend out of the corresponding upper wall formwork (11) by a certain length, and when the two upper wall formworks (11) are assembled, the edge member stirrups (122) of the two upper wall formworks (11) overlap each other up and down; The second edge member stirrups (222) extend out of the corresponding splicing side of the lower wall formwork (21) by a certain length. When the two lower wall formworks (21) are assembled, the second edge member stirrups (222) of the two lower wall formworks (21) overlap each other up and down.

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