Large-volume cast-in-place concrete splicing template

Abstract

The utility model discloses a large-size cast-in-place concrete splicing formwork. The large-size cast-in-place concrete splicing formwork comprises a formwork body, a plurality of hanging rods and a plurality of sets of splicing assemblies. The plurality of hanging rods are vertically arranged and are fixed on the inner side plate surface of the template body at equal intervals; the lifting rod comprises a longitudinal beam and a lifting lug arranged on the top side of the longitudinal beam; the splicing assembly is composed of an outwards-convex connecting part, an inwards-concave connecting part and a fastening connecting piece. The outwards-convex connecting parts and the inwards-concave connecting parts of the multiple sets of splicing assemblies are arranged on the edges of the left side and the right side of the formwork body at intervals in a one-to-one correspondence mode and fixedly connected in an embedded fit mode. According to the formwork, the suspenders and the splicing assemblies are additionally arranged, so that the structural strength of the formwork and the bonding strength of the formwork and concrete are enhanced, and deformation during later concrete pouring is avoided; and meanwhile, rapid and gapless high-quality connection of the two formworks can be achieved through the splicing assembly, and the problem of grout leakage during later concrete pouring is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast-in-situ concrete formwork technical field, especially to a large volume cast-in-situ concrete splicing formwork. BACKGROUND

[0002] In recent years, with the continuous development of construction engineering, various kinds of large-scale engineering construction projects also increase continuously. These projects in the construction process, from the technology, safety and efficiency, to the large volume cast-in-situ concrete formwork splicing process, construction process, and installation process put forward new challenges. In the process of splicing construction and installation, in order to realize the splicing connection of the formwork, the formwork is usually connected by punching holes and screwing bolts in the longitudinal rib of the edge of the two formworks in the transverse direction. However, this method can only manually punch holes and screw bolts when hoisting and assembling the formwork during the splicing process of the formwork, and the connection between the formworks is completed. The construction progress is slow, and the overall progress is delayed. Although more cranes and workers can be arranged for formwork installation to speed up the progress, due to the large human error, under the premise of consuming a lot of manpower and material resources, the construction quality is still not good, and the labor cost and operation cost are high. Therefore, it is necessary to design a large volume cast-in-situ concrete splicing formwork with a new structure to solve the problems of low construction efficiency and high labor cost in the prior art. SUMMARY

[0003] The utility model aims at providing a large volume cast-in-situ concrete splicing formwork which solves the above technical problems.

[0004] Therefore, the utility model technical scheme is as follows:

[0005] A large volume cast-in-situ concrete splicing formwork, comprising a formwork body, a plurality of hangers and a plurality of assembly components; wherein the plurality of hangers are fixed at equal intervals on the inner side of the formwork body; each hanger comprises a longitudinal beam arranged in the longitudinal direction of the formwork body, the bottom end of which is flush with the bottom side of the formwork body, and the top end of which protrudes to the outside of the top side of the formwork body, and the top side of the longitudinal beam is provided with an ear; the assembly component is composed of an outer convex connecting part, an inner concave connecting part and a fastening connecting piece; the outer convex connecting parts and the inner concave connecting parts of the plurality of assembly components are respectively arranged at intervals on the left and right side edges of the formwork body; each outer convex connecting part is fixed on the inner side of the formwork body in a way that it protrudes locally to the outside of the formwork body, and each inner concave connecting part is fixed on the inner side of the formwork body in a way that its outer end is flush with the edge of the formwork body, so that when two formwork bodies are transversely spliced, the plurality of outer convex connecting parts on one formwork body can be respectively and correspondingly embedded and matched with the plurality of inner concave connecting parts on the other formwork body, and each two embedded and matched outer convex connecting parts and inner concave connecting parts are connected and fixed by the fastening connecting piece.

[0006] Further, the template body comprises a longitudinal plate and an oblique plate connected in sequence from top to bottom, and the included angle between the two is obtuse; the suspender comprises a vertical beam and an oblique beam connected in sequence, the vertical beam is a steel pole fixed on the longitudinal plate along the longitudinal direction, and the oblique beam is a triangular beam body arranged along the longitudinal direction and fixed on the oblique plate perpendicularly.

[0007] Further, a plurality of transverse ribs and a plurality of longitudinal ribs are arranged on the inner plate surface of the template body along the transverse direction and the longitudinal direction respectively, and the plurality of transverse ribs and the plurality of longitudinal ribs are arranged in a cross manner.

[0008] Further, a plurality of suspenders are fixed on the plurality of transverse ribs of the template body and located between two adjacent longitudinal ribs.

[0009] Further, a first connecting hole is formed in the part of the outwardly protruding connecting part protruding to the outside of the template body along the longitudinal direction of the template body; the outer side end of the inwardly recessed connecting part is composed of two connecting plates arranged in parallel and in a top-bottom spaced manner, and a second connecting hole is formed in the two connecting plates along the longitudinal direction of the template body; the fastening connecting piece is composed of a fastening bolt and a fastening nut matched with the fastening bolt; the fastening bolt is adapted to the hole diameter of the first connecting hole and the second connecting hole, so as to be connected in sequence.

[0010] Further, the depth of the embedding groove formed by the two connecting plates of the outer side end of the inwardly recessed connecting part is adapted to the transverse length of the part of the outwardly protruding connecting part protruding to the outside of the template body, so that the two template bodies are connected without gap.

[0011] Further, the template body, the plurality of suspenders and the plurality of sets of assembling components are all steel structures.

[0012] Compared with the prior art, the large-volume cast-in-place concrete splicing template is provided with a suspender and an assembling component on the template body, which further enhances the structural strength of the template, and the change in structure enhances the bonding strength with the concrete, so that deformation during later pouring of the concrete is avoided; on the other hand, the assembling component can realize rapid and gap-free high-quality connection of two templates, effectively avoiding the problem of concrete leakage during later pouring of the concrete; in practical engineering application, the one-time acceptance pass rate of the large-volume concrete steel template is 95%, which basically eliminates the situation of unqualified acceptance and rework, effectively reduces the labor cost and material cost, improves the engineering construction efficiency, and ensures the engineering quality and progress. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the large-volume cast-in-place concrete splicing template in the embodiment of the utility model;

[0014] Figure 2 It is a plan view of the large-volume cast-in-place concrete splicing template in the embodiment of the utility model;

[0015] Figure 3 The side view of the large-volume cast-in-situ concrete splicing formwork in the embodiment of the utility model;

[0016] Figure 4 The structural schematic view of the formwork body of the large-volume cast-in-situ concrete splicing formwork in the embodiment of the utility model;

[0017] Figure 5 The structural schematic view of the embedded cooperation of the steel convex ring and the steel concave ring of the two formwork bodies in the embodiment of the utility model when splicing;

[0018] Figure 6 The structural schematic view of the fastening bolt of the large-volume cast-in-situ concrete splicing formwork in the embodiment of the utility model;

[0019] Figure 7 The state schematic view of the splicing completion of the two large-volume cast-in-situ concrete splicing formworks in the embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be further explained in combination with the drawings and specific embodiments, but the following embodiments are by no means any limitation on the utility model.

[0021] Referring to Figures 1-3 The large-volume cast-in-situ concrete splicing formwork is a breast wall splicing formwork based on the breast wall construction design of the hydraulic wharf, which specifically comprises a formwork body 1, four steel hangers 2 and eight sets of assembling components.

[0022] Referring to Figure 4 A plurality of transverse ribs 103 and a plurality of longitudinal ribs 104 are arranged on the inner side plate surface of the formwork body 1 in the horizontal direction and the vertical direction respectively, and the plurality of transverse ribs 103 and the plurality of longitudinal ribs 104 are arranged in a cross manner; this structure can not only enhance the plate body strength of the formwork and avoid deformation in the construction process, but also play a role in shaping the poured concrete, so that the structural strength of the concrete pouring body provided with the formwork body 1 is further improved.

[0023] In the embodiment, relying on the actual construction engineering of the breast wall of the hydraulic wharf, the formwork body 1 is composed of a steel longitudinal plate 101 and a steel inclined plate 102 which are sequentially and fixedly connected by welding from top to bottom, and the included angle between the two is 150°, which is adapted to the slope of the breast wall; a plurality of steel transverse ribs 103 and a plurality of steel longitudinal ribs 104 arranged in a cross manner are fixedly welded on the inner side plate surface of the longitudinal plate 101 and the inclined plate 102 in the transverse and longitudinal directions respectively and are arranged in a cross manner, so that a grid reinforcing structure is formed on the inner side plate surface of the formwork body 1.

[0024] Four steel hangers 2 are vertically arranged and fixed at equal intervals on the transverse ribs 103 on the inner side panel of the formwork body 101, preferably located at the center between two adjacent longitudinal ribs 104; each steel hanger 2 consists of a longitudinal beam and a lifting lug; wherein, the longitudinal length of the longitudinal beam is greater than the longitudinal length of the formwork body 1, so that its bottom side is flush with the bottom edge of the formwork body 1, and its top side extends to the outside of the formwork body 1; the lifting lug is fixed to the top side of the longitudinal beam to facilitate connection with the crane hook for hoisting the entire formwork; these four steel hangers 2 fixed on the formwork body 1 not only further enhance the structural strength of the steel formwork 1, but also form multiple lifting lugs evenly distributed on the top side of the formwork body 1 to ensure the stable hoisting of the entire formwork.

[0025] See Figure 1 In this embodiment, based on the structure of the template body 1, the longitudinal beam of the steel hanger 2 includes a vertical beam and an inclined beam connected in sequence; wherein, the vertical beam is a steel rod with a rectangular cross-section, and one side of its beam wall is welded and fixed to the transverse rib 103 on the inner side of the longitudinal plate 101; the inclined beam is a triangular beam, which is vertically welded and fixed to the transverse rib 103 or longitudinal rib 104 on the inner side of the inclined plate 102 through one side of its beam wall; the length of the vertical beam is greater than the longitudinal length of the longitudinal plate 101, and the length of the inclined beam is the same as the longitudinal length of the inclined plate 102, so that the two bottom corners of the inclined beam are connected to the bottom end of the vertical beam and the bottom edge of the inclined plate 102 respectively, and the top of the vertical beam extends to the outside of the top side of the template body 1.

[0026] See Figure 5 and Figure 6 The assembly component consists of a steel convex ring 3, a steel concave ring 4, and a fastening connector 5;

[0027] Multiple steel protruding rings 3 are fixed at equal intervals on the inner side plate of the template body 101 and near the left edge, and are partially protruding to the outside of the template body 101; a first connecting hole is provided on the part of the steel protruding ring 3 that protrudes to the outside of the template body 101; in this embodiment, the steel protruding ring 3 is welded and fixed on the transverse rib 103, and the first connecting hole on it is opened along the longitudinal direction of the template body 101.

[0028] Multiple steel concave rings 4 are equally spaced on the inner side plate of the template body 101 and near the right edge, with their outer ends flush with the right edge of the template body 101; the outer end of the steel concave ring 4 is provided with an insert groove that can cooperate with the steel convex ring 3 protruding to the outer part of the template body 101, and the two sides of the insert groove are symmetrically provided with second connecting holes; in this embodiment, the steel concave ring 4 is welded and fixed on the transverse rib 103, and the outer end of the steel concave ring 4 is composed of two parallel connecting plates that are spaced vertically, and the two plates are provided with second connecting holes along the longitudinal direction of the template body 101.

[0029] The fastening connector 5 consists of a fastening bolt 501 and a matching fastening nut 502.

[0030] Multiple steel convex rings 3 and multiple steel concave rings 4 are respectively arranged in a one-to-one correspondence on the left and right sides of the template body 1. When two breast wall splicing templates are spliced ​​laterally, the multiple steel convex rings 3 on one template body 1 correspond one-to-one with the multiple steel concave rings 4 on the other template body 1 and are fitted together. Then, the two second connecting holes on each pair of fitted steel concave rings 4 are connected and fixed together by fastening bolts 501 in the first connecting holes on the steel convex rings 3 and fastening nuts 502 that are sleeved and fixed at the bottom of the fastening bolts 501. This achieves quick and secure alignment and splicing between the two breast wall splicing templates. In particular, by controlling the length of the steel convex rings 3 protruding to the outside of the template body 1 and the size of the fitting groove of the steel concave rings 4, gapless splicing between the two template bodies 1 can be achieved.

[0031] The specific method for using the breast wall splicing formwork for the construction of the breast wall of this hydraulic wharf is described below.

[0032] S1. Based on the actual situation of the supporting project, produce a product with the following features: Figure 1 The multi-piece breast wall splicing formwork, which has the structure shown and the dimensions that match the actual construction, was transported to the construction site.

[0033] S2. Using the lifting lugs at the top of the steel hanger 2 on the breast wall splicing template, multiple breast wall splicing templates are vertically hoisted to the designated position for sequential splicing along the extension direction of the breast wall.

[0034] S3. For the first breast wall splicing formwork, use the two hooks of the crane to hook the top lugs of the two steel rods at the center position on the breast wall splicing formwork, and lift it to the designated position and fix it. For subsequent breast wall splicing formwork, use the same lifting method to lift them to the side of the previously fixed breast wall splicing formwork. Then, adjust them sequentially by longitudinal displacement and lateral movement to make the multiple steel protruding rings 3 on the two breast wall splicing formwork correspond one-to-one with the multiple steel concave rings 4 and fit them in place. Then, insert fasteners into the connecting holes on each pair of fitted steel protruding rings 3 and steel concave rings 4. Bolt 501 and fastening nut 502 fixed to the tail end of the fastening bolt achieve a tight connection between the interlocking steel convex ring 3 and steel concave ring 4. It should be noted that during the above construction process, when the two template bodies 1 are initially interlocked, they have already achieved splicing and connection. At this time, the crane can leave and carry out the hoisting of the next breast wall splicing template. The subsequent installation of fastening connectors is carried out by the on-site workers. Since the structural design of the breast wall splicing template can meet the above-mentioned alternating construction operation method, it can effectively reduce construction time, shorten the construction period, and improve overall work efficiency.

[0035] S4. Repeat steps S2 to S3 above until all the breast wall splicing templates are spliced.

[0036] In actual hydraulic wharf breast wall construction, this splicing formwork allows for rapid assembly of adjacent breast wall panels 1 through the fitting of steel convex rings 3 and concave rings 4 in the assembly components. The precise positioning of the two panels, combined with the seamless connection of the steel convex rings 3 and concave rings 4 via fastening connectors 5, ensures a high-quality, gapless connection. The steel hanger structure design within the adjacent breast wall splicing formwork effectively prevents deformation and grout leakage during subsequent concrete pouring. The first-time acceptance rate for all breast wall splicing formwork assembly operations reaches 95%, virtually eliminating the need for rework due to non-compliance. This reduces labor and material costs, ensuring project quality and schedule.

[0037] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the structure of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A large-volume cast-in-place concrete splicing formwork, characterized in that, The assembly includes a template body (1), multiple hangers (2), and multiple sets of assembly components. The multiple hangers (2) are fixed at equal intervals on the inner side plate of the template body (1). Each hanger (2) includes a longitudinal beam arranged along the longitudinal direction of the template body (1), with its bottom end flush with the bottom side of the template body (1) and its top end protruding to the outside of the top side of the template body (1). A lifting lug is provided on the top side of the longitudinal beam. The assembly components consist of an outwardly protruding connecting part (3), an inwardly concave connecting part (4), and fastening connectors (5). The outwardly protruding connecting parts (3) and the inwardly concave connecting parts (4) of the multiple sets of assembly components are arranged at intervals on the left and right sides of the template body (1). At both sides, each protruding connecting part (3) is fixed to the inner side plate of the template body (1) by protruding partially to the outside of the template body (1), and each concave connecting part (4) is fixed to the inner side plate of the template body (1) by having its outer end flush with the edge of the template body (1), so that when the two template bodies (1) are spliced ​​horizontally, the multiple protruding connecting parts (3) on one template body (1) can correspond one-to-one with the multiple concave connecting parts (4) on the other template body (1) and fit together. Each pair of fitted protruding connecting parts (3) and concave connecting parts (4) are connected and fixed by fastening connectors (5).

2. The large-volume cast-in-place concrete splicing formwork according to claim 1, characterized in that, The template body (1) includes a longitudinal plate (101) and an inclined plate (102) connected from top to bottom, with an obtuse angle between them; the hanger (2) includes a vertical beam and an inclined beam connected in sequence. The vertical beam is a steel rod fixed in the longitudinal direction on the longitudinal plate (101), and the inclined beam is a triangular beam set in the longitudinal direction and vertically fixed on the inclined plate (102).

3. The large-volume cast-in-place concrete splicing formwork according to claim 1, characterized in that, Multiple transverse ribs (103) and multiple longitudinal ribs (104) are arranged at intervals along the transverse and longitudinal directions on the inner side plate of the template body (1), and the multiple transverse ribs (103) and multiple longitudinal ribs (104) are arranged to cross each other.

4. The large-volume cast-in-place concrete splicing formwork according to claim 2, characterized in that, Multiple hangers (2) are fixed on multiple transverse ribs (103) of the template body (1) and located between two adjacent longitudinal ribs (104).

5. The large-volume cast-in-place concrete splicing formwork according to claim 1, characterized in that, The portion of the protruding connecting part (3) protruding to the outside of the template body (1) has a first connecting hole along the longitudinal direction of the template body (1); the outer end of the concave connecting part (4) is composed of two parallel connecting plates that are spaced apart vertically, and the two plates have a second connecting hole along the longitudinal direction of the template body (1); the fastening connecting part (5) is composed of a fastening bolt (501) and a matching fastening nut (502).

6. The large-volume cast-in-place concrete splicing formwork according to claim 5, characterized in that, The depth of the groove formed by the two connecting plates at the outer end of the concave connecting part (4) is adapted to the transverse length of the convex connecting part (3) protruding to the outer side of the template body (1), so that the two template bodies (1) are spliced ​​together without gaps.

7. The large-volume cast-in-place concrete splicing formwork according to claim 1, characterized in that, The formwork body, multiple hangers, and multiple sets of assembly components are all steel structures.

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