A precast concrete sill coping member

Abstract

The utility model discloses a kind of precast concrete windowsill coping components, including component body, the component body includes integrally-formed flat section and bevel section, the component body inside pre-buried 4 longitudinal reinforcement, longitudinal reinforcement one end protrudes component body from bevel section and exposes as lap section;So bevel section sets up two length-through waterproof groove.The technical effect and advantage of the utility model: construction efficiency improves: precast component is installed with masonry synchronously, eliminates maintenance waiting period, and windowsill construction cycle is shortened to 1 day;Anti-cracking performance is excellent: bevel occlusion structure makes joint place crack resistance strength improve;Waterproof performance is reliable: double waterproof groove makes node leakage rate reduce;Structure integrality is good: pre-buried reinforcement and cast-in-place section form whole;The innovation of the present application is successfully cracked traditional windowsill construction quality common fault through the organic combination of precast component standardization production and field assembly construction, provides new industrialization solution for masonry structure engineering.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a precast concrete window sill capping component, which is particularly suitable for the continuous masonry construction of the window sill capping and the upper wall in masonry structures. Background Technology

[0002] Traditional window sill coping construction primarily utilizes cast-in-place concrete, requiring formwork, pouring, and curing. This results in long construction intervals and delays as the upper wall masonry must wait for the coping to reach its design strength. Existing precast coping components suffer from the following drawbacks: ① Shrinkage cracks easily develop at the connection with the cast-in-place section; ② Effective waterproofing is lacking; ③ Difficult installation and positioning affect construction accuracy. Conventional precast components often use flat-end butt joints, which are prone to longitudinal cracks under temperature stress and have insufficient waterproofing, leading to window sill leakage. Furthermore, existing components lack reliable connection structures with the masonry, affecting overall integrity. Therefore, a new type of precast coping component that allows for rapid installation, crack prevention, waterproofing, and ease of masonry construction is urgently needed. Utility Model Content

[0003] This utility model addresses the problems of intermittent construction processes, joint leakage, and structural cracking in existing window sill coping construction techniques by innovatively proposing a precast-cast-in-place composite coping structure system.

[0004] Three major technological breakthroughs were achieved through the design of prefabricated components with built-in anchoring steel bars and sloping joints: ① Eliminate the curing interval of traditional cast-in-place coping, and achieve continuous masonry construction of the window sill coping and the upper wall; ② The double waterproof groove and sloping interlocking structure are adopted to improve the impermeability of the joint; ③ The pre-embedded steel bars and the cast-in-place section work together to bear the load, eliminating the conditions for temperature cracks to occur.

[0005] Engineering verification has shown that this structure can shorten the construction period of the window sill by more than 70% and reduce the risk of leakage by up to 90%.

[0006] The technical solution of this utility model is as follows: A precast concrete window sill capping component includes a component body, which comprises an integrally formed straight section and a sloping section. Four longitudinal steel bars are pre-embedded inside the component body. One end of each longitudinal steel bar extends out of the component body from the sloping section and is exposed as an lap joint. Therefore, the sloping section is provided with two continuous waterproof grooves.

[0007] The straight section is 200mm long and 100mm high, and the inclined section is 250mm long.

[0008] The exposed length of the longitudinal reinforcing bars is 250-500 mm.

[0009] The cross-sectional dimensions of the continuous waterproof groove are 10mm × 10mm, and the distance between the two continuous waterproof grooves is 50mm.

[0010] The technical effects and advantages of this utility model are as follows: Improved construction efficiency: Precast components are installed simultaneously with the masonry, eliminating the curing waiting period and shortening the window sill construction cycle to 1 day; Excellent crack resistance: The beveled interlocking structure enhances the crack resistance of the joint; Reliable waterproof performance: The double waterproof groove reduces the leakage rate at joints; Good structural integrity: the pre-embedded steel bars and the cast-in-place section form an integral whole; This innovation successfully addresses common quality problems in traditional window sill construction by organically combining standardized prefabricated component production with on-site assembly construction, providing a new industrialized solution for masonry structure engineering. Attached Figure Description

[0011] Figure 1 This is a side sectional view of the present invention; Figure 2 This is a top view; Figure 3 This is an installation diagram of the prefabricated capping structure. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0013] A precast concrete window sill capping component includes a component body 1, which includes an integrally formed straight section 11 and a sloping section 12. Four longitudinal steel bars 2 are pre-embedded inside the component body. One end of each longitudinal steel bar 2 extends out of the component body from the sloping section and is exposed as an lap joint. Therefore, the sloping section is provided with two continuous waterproof grooves 3.

[0014] Furthermore, the straight section is 200mm long and 100mm high, while the inclined section is 250mm long, forming a stepped overlapping structure.

[0015] Furthermore, the exposed length of the longitudinal reinforcing bars is 250-500mm.

[0016] Furthermore, the cross-sectional dimensions of the continuous waterproof groove are 10mm×10mm, and the distance between the two continuous waterproof grooves is 50mm, which is used to block the capillary seepage path. Example

[0017] The construction steps for prefabricated window sill capping components are as follows: masonry up to the window sill → install prefabricated capping components → masonry the upper part of the structure → pour the cast-in-place section. This invention innovatively adopts a structure combining prefabricated components and cast-in-place construction, solving the problem of continuous construction of window sill masonry and providing an efficient and reliable technical solution for post-pouring strip construction.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast concrete window sill capping component, characterized in that: The component body includes an integrally formed straight section and a sloping section. Four longitudinal steel bars are pre-embedded inside the component body. One end of each longitudinal steel bar extends out of the component body from the sloping section and is exposed as an lap joint. Therefore, the sloping section is provided with two continuous waterproof grooves.

2. The precast concrete window sill capping component according to claim 1, characterized in that: The straight section is 200mm long and 100mm high, and the inclined section is 250mm long.

3. A precast concrete window sill capping component according to claim 1, characterized in that: The exposed length of the longitudinal reinforcing bars is 250-500 mm.

4. A precast concrete window sill capping component according to claim 1, characterized in that: The cross-sectional dimensions of the continuous waterproof groove are 10mm × 10mm, and the distance between the two continuous waterproof grooves is 50mm.

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