Sharing of the separation technology project of electrical pipeline and structural part 01.

For the convenience of analysis, only one house type in the standard floor plan is selected for analysis.

The separation method of electrical pipeline and structural part of a house is as follows: The residential building is a precast construction project with a total of 33 floors, and the standard floor uses precast composite floors, precast internal partitions, precast stairs, laminated slab balconies and other precast components.

The separation technology of electrical pipeline and structural part of the pipeline and structural part adopts the method of combining the exposed and concealed conduits.

Routine practice of pipeline separation technology Proportion of pipeline separation in precast houses Analysis of technical contribution value: pipeline separation ❖ Basic concept: specification definition: pipeline separation is the way to set equipment and pipeline outside the structural system; Pipeline disciplines included in the calculation of pipeline separation ratio: electrical (strong current, weak current, communication), water supply and drainage, heating and other disciplines.

The electrical pipeline (including bridge) laid in the overhead floor and ceiling on the ground belongs to the separation of pipeline and structure; Concealed pipelines laid in floors and walls are identified as undivided.

Click the blue letter to pay attention to our brief introduction of pipeline separation technology 1.

Several methods for separating electrical pipelines from structures In precast residential projects, all electrical pipelines laid in the open or in the overhead floor and ceiling can be completely separated, but there are many disadvantages.

The plan of the house type is shown in Figure 1.

Fixing Socket

In precast projects, according to the conventional practice, all electrical pipelines will be concealed at the cast-in-place layer of the composite floor slab, which will produce many intersections, which will damage the reinforcement protection layer of the structure and affect the structural safety.

Figure 1 Plan of residential house type This house type adopts the method of separating the pipeline from the structural part.

Pipeline separation: pipelines exposed in indoor space and laid in overhead floor, non-bearing wall cavity and suspended ceiling shall be identified as pipeline separation; The pipeline is not separated: for the pipeline buried inside the structural member (excluding crossing) or laid in the wet work ground cushion.

Because it is reserved outside the main body of the building, the precast components can reduce the differences caused by the embedment, improve the modularization and standardization of the components, reduce the construction difficulty at the construction site, greatly increase the flexibility, and reduce the high loss during the construction process.

Several methods for separating electrical pipelines from structures 01.

Applicable suggestions: full separation is not recommended, but partial separation is recommended; The feasible schemes for pipeline separation are: indoor – kitchen and bathroom exposed laying, passenger dining walkway exposed laying in partial ceiling, non-ceiling part of laminated slab cast-in-place layer concealed laying, strong and weak current box conduits led to the wall under the ceiling are concealed laying in the precast inner wall panel; Public area – most of the pipelines are laid in an open manner (electric and weak current are all laid in an open manner, lighting and alarm are mostly laid in an open manner, and most of them are laid in a concealed manner when they are led vertically down to the end point).

Because of the differences between conventional projects and precast buildings, how should we solve the differences between the electrical conduit laying and conventional ones? Perhaps you can find the answer after reading today’s “Electric pipeline and separation application of precast residential buildings”.

The meaning of pipeline separation in precast buildings is recommended.

Pipeline separation: for the pipelines exposed in the indoor space and laid in the overhead floor on the ground, non-bearing wall cavity and suspended ceiling (√), the pipelines are not separated: buried in the structural components (excluding crossing)（ ×） The pipeline is not separated: the pipeline laid in the wet work ground cushion shall be deemed as not separated（ ×） ❖ Advantages and applicable suggestions: advantages: improve the convenience of daily equipment maintenance, greatly reduce the difficulty of maintenance, and improve the transparency of construction; Disadvantages: great impact on hardbound; Affect the indoor clear height and clear width; At present, there are few examples approved by Wuhan drawing review; At present, there is no such acceptance project in a city in central China, and the pipeline separation project has not been accepted by the construction pipeline station, and there is no specific method for the assembly provisions, and the main direction of the government is to prefabricate vertical and laminated plates.

The difference between pipeline separation and traditional methods is that in traditional buildings, equipment pipelines for indoor decoration are embedded in structural components such as concrete floors and walls or building surface.

In this way, when the equipment pipeline is aging, the concrete needs to be chiseled for reconstruction and renewal, and the subsequent maintenance cost is high, which also affects the service life of the building.

The ceiling range of residential units fed back by the interior design discipline is shown in the shaded line in Figure 1..

When the electrical pipeline is stripped from the structural layer, the protection cost and decoration cost of the pipeline will increase accordingly.

Therefore, in precast residential projects, the method of complete separation of pipeline and structure is rarely used.

With the further development of precast buildings, people are gradually not satisfied with the current construction method, and hope to upgrade the overall quality of precast buildings and the scientific and technological content of the construction industry through the breakthrough of new construction methods and different professional technologies.

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It is difficult to maintain and replace the pipelines concealed in the floor.

Therefore, it is of great practical significance to scientifically separate the electrical pipeline from the structure, give full play to the advantages that the separation of the pipeline does not damage the protective layer of the structural reinforcement, ensure the safety and stability of the structure, and also avoid the post-excavation phenomenon caused by the leakage of the electric pipe by the construction unit.

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What is pipeline separation technology? Pipeline separation refers to the practice that electrical, water supply and drainage and heating pipelines are exposed in the indoor space and laid in the overhead floor, non-bearing wall cavity and suspended ceiling.

The initial investment cost of pipeline separation is high, but the later reconstruction cost is low and there is no harm to the structural layer.

The “pipeline separation” technology is adopted.

On the premise of not affecting the safety of the main structure, it skillfully designs the electrical pipeline routing through the cooperation of multiple disciplines and types of work, which not only meets the aesthetic requirements, but also facilitates people to update and maintain later.

The electrical discipline has power, lighting, weak current, alarm and other pipelines with a diameter of 20mm.

At the same time, people continue to pursue the quality of life and may decorate the interior of their living space for many times.

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