CN112031268A - Prefabricated concrete heat-insulating wall plate for basement of independent residence - Google Patents

Abstract

The invention discloses a prefabricated concrete heat-insulation wall board for a basement of an independent house, which comprises a concrete slab, concrete dense ribs and a base plate, wherein the concrete slab is vertically arranged, the base plate is horizontally arranged, the concrete slab is orthogonally connected with the base plate, and the side projection is in an L shape; the concrete slabs and the concrete dense ribs are connected by adopting a plurality of concrete connecting lugs which are uniformly distributed up and down; and heat insulation plates are arranged among the vertical concrete connection lugs. The concrete plate has good overall synergistic performance and high energy-saving performance, the thickness of the plate is greatly reduced by adopting concrete dense ribs, and the lugs are connected by adopting concrete, so that the integrity of the plate is obviously improved, and the energy-saving and heat-preserving effects are realized; the anti-seismic performance is obviously improved, the construction is simplified, the industrialization efficiency is obviously improved, and the resource and energy consumption is reduced.

Description

Precast Concrete Insulation Wall Panels in Basement of Independent House

technical field

The invention relates to a prefabricated building energy-saving wallboard, in particular to a prefabricated concrete thermal insulation wallboard for a basement of an independent house.

Background technique

Prefabricated concrete buildings refer to prefabricated concrete components produced in factories. Concrete structures are designed and constructed by on-site assembly. The assembly methods of components generally include on-site post-pouring of superimposed layer concrete, steel anchoring and post-casting concrete connection, etc. The steel bar connection can be done by sleeve grouting connection, welding, mechanical connection and reserved hole lap connection. In the 1980s, the prefabricated prefabricated large slab houses that were popular in my country, due to poor structural integrity, leakage, floor cracks and other reasons, had many hidden dangers and defects that affected the safety and normal use of the structure, and were gradually replaced by cast-in-place concrete structures. . However, with the application of the current emerging prefabricated concrete structures, especially the introduction of many foreign advanced technologies in recent years, localized new technologies for the construction of prefabricated concrete structures are gradually being formed.

With the acceleration of the process of "construction industrialization and housing industrialization" in China and the continuous reduction of China's "demographic dividend", the labor shortage in the construction industry has appeared, and the trend of residential industrialization has become more and more obvious. The application of prefabricated concrete structures has become a current research hotspot again, and new technologies and new forms of prefabricated concrete structures for residential buildings are emerging all over the country. Prefabricated reinforced concrete structure is one of the important directions for the development of building structures in my country. It is conducive to the development of building industrialization in China, improving production efficiency, saving energy, developing green and environmentally friendly buildings, and helping to improve and ensure the quality of construction projects. Compared with the cast-in-place construction method, the prefabricated RC structure is conducive to green construction, because the prefabricated construction can better meet the requirements of green construction, such as land saving, energy saving, material saving, water saving and environmental protection, and reduce the negative impact on the environment. Including reducing noise, preventing dust, reducing environmental pollution, clean transportation, reducing site disturbance, saving water, electricity, materials and other resources and energy, following the principle of sustainable development. Moreover, the prefabricated structure can continuously complete multiple or all processes of the project in sequence, thereby reducing the type and quantity of construction machinery entering the site, eliminating the idle time of process connection, realizing three-dimensional cross-operation, reducing construction personnel, and improving work efficiency. , Reduce material consumption, reduce environmental pollution, and provide guarantee for green construction. In addition, the prefabricated structure reduces construction waste to a large extent (accounting for 30%-40% of the total urban waste), such as waste steel bars, waste iron wires, waste bamboo wood, waste concrete, etc.

Prefabricated concrete buildings can be divided into two categories: full assembly and partial assembly according to the degree of assembly. Fully assembled buildings are generally limited to low-rise or multi-storey buildings with low seismic fortification requirements; some of the main components of prefabricated concrete buildings are generally prefabricated and connected by cast-in-place concrete on site to form a building with an integrated structure.

North America is mainly dominated by the United States and Canada. Due to the long-term research and promotion of prefabricated buildings by the Precast/Prestressed Concrete Association (PCI), the relevant standards and specifications for precast concrete are also perfect. Therefore, its prefabricated concrete building applications are very common. Prefabricated buildings in North America mainly include two series of building prefabricated exterior walls and structural prefabricated components. The common feature of prefabricated components is the combination of large-scale and prestressed. Structural reinforcement and connection configurations can be optimized. Reduce the workload of production and installation, shorten the construction period, and fully reflect the characteristics of industrialization, standardization and technical economy. In the 20th century, prefabricated buildings in North America were mainly used in low-rise, non-seismically fortified areas. Due to the impact of earthquakes in the California area, in recent years, great attention has been paid to the engineering application technology research of earthquake-resistant and mid-to-high-rise prefabricated structures. PCI recently published the book "Seismic Design of Precast Concrete Structures", which systematically analyzes the seismic design of prefabricated buildings from a theoretical and practical perspective, summarizes the latest scientific research results of seismic design of many precast structures, and provides guidance for the design and engineering applications of precast structures. Promotion has a strong guiding significance.

Europe is the birthplace of prefabricated buildings, and the road to building industrialization began as early as the 17th century. After the Second World War, due to the shortage of labor resources, Europe further researched and explored the mode of construction industrialization. Whether it is economically developed Northern Europe, Western Europe, or economically underdeveloped Eastern Europe, the design and construction methods of prefabricated concrete buildings have been actively promoted. It has accumulated a lot of experience in the design and construction of prefabricated buildings, formed various special prefabricated building systems and standardized general prefabricated product series, and compiled a series of prefabricated concrete engineering standards and application manuals, which have played a role in promoting the application of prefabricated concrete in the world. very important role.

Japan and South Korea have learned from the successful experience of Europe and the United States, on the basis of exploring the standardized design and construction of prefabricated buildings. Combine your own requirements. Breakthroughs have been made in the overall seismic and isolation design of prefabricated structural systems. A representative achievement is the two 58-story Tokyo Towers built in Japan in 2008 with a prefabricated frame structure. At the same time, Japan's standard specifications for the design, production and construction of precast concrete building systems are also very complete. The currently used precast specifications include "Precast Concrete Engineering} (JASSl0) and "Concrete Curtain Wall) (JASSl4).

my country began to study the design and construction technology of prefabricated concrete buildings from the 1950s and 1960s, and formed a series of prefabricated concrete building systems. The more typical building systems include prefabricated single-story industrial plant building systems and prefabricated multi-storey frame buildings. system, prefabricated slab building system, etc. By the 1980s, the application of prefabricated concrete buildings reached its heyday, and many parts of the country had formed a prefabricated concrete industrialized building model integrating design, production, construction and installation. Prefabricated concrete buildings and masonry buildings with prefabricated hollow floor slabs have become the two most important building systems, with an application penetration rate of over 70%. Due to the many limitations and deficiencies in the functions and physical properties of prefabricated buildings, my country's prefabricated concrete building design and construction technology research and development level has not kept up with the changes in social needs and construction technology development. By the mid-1990s, prefabricated concrete The building has been gradually replaced by the all-in-place concrete building system, except for the prefabricated single-story industrial plant building system, which is widely used. There are very few engineering applications of other prefabricated building systems. The seismic integrity of prefabricated structures and the specialized research on design and construction management are insufficient, resulting in poor technical economy. It is the root cause of the long-term stagnation of prefabricated structures.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a prefabricated concrete thermal insulation wallboard for the basement of an independent house, which can not only simplify the processing procedure, but also can significantly improve the seismic performance and reduce the resource and energy consumption.

In order to solve the problems existing in the prior art, the technical scheme adopted in the present invention is:

A prefabricated concrete thermal insulation wall panel for a basement of an independent house, comprising a concrete slab, a concrete rib and a base slab, the concrete slab is arranged vertically, the base slab is arranged horizontally, the concrete slab and the base slab are connected orthogonally, and the side projection is L-shaped; The rib is a number of vertical and evenly distributed concrete vertical ribs, and the upper and lower ends of the concrete rib are flush with the upper and lower ends of the concrete slab; the bottom of the concrete rib is connected with the base plate; A number of concrete connecting lugs evenly distributed up and down are connected, and the concrete connecting lugs at the top are flush with the top surface of the concrete slab and the concrete rib; insulation boards are arranged between the vertical concrete connecting lugs, and the horizontal ends of the insulation plates are Rectangular serrations are in the shape of rectangular serrations, and the rectangular serrations are inserted into the vertical gaps of two adjacent concrete connecting ears one by one; the reinforcing bars set at the center of the concrete rib and the center line of the concrete slab corresponding to the center of each concrete rib protrude from the upper surface, Connecting steel bars are formed; vertical waterproof rubber strip grooves are arranged on the horizontal ends of the concrete slab and the outer surfaces of the concrete rib at both ends.

Further, on the two rows of concrete connecting ears located at both ends in the horizontal direction, each row is provided with 3-6 connecting screw holes, and the connecting screw holes pass through the concrete connecting ears and point to the two horizontal ends.

Further, the thickness of the thermal insulation board is the length of the concrete connecting ears.

Further, the cross section of the waterproof rubber strip groove is semicircular.

The advantages and beneficial effects that the present invention has are:

The invention relates to a prefabricated concrete thermal insulation wall panel for a basement of an independent house, comprising a concrete slab, a concrete rib and a base slab, the concrete slab is arranged vertically, the base slab is arranged horizontally, the concrete slab and the base slab are connected orthogonally, and the side projection is L-shaped; The concrete slab and the concrete rib are connected by a number of concrete connecting ears evenly distributed up and down; thermal insulation boards are arranged between the vertical concrete connecting ears. The invention has good overall synergy performance and high energy-saving performance. The concrete rib is used to greatly reduce the thickness of the board, and the concrete is used to connect the pick ears, which not only significantly improves the integrity of the board, but also effectively saves energy and heat preservation; Improve its industrialization efficiency and reduce resource and energy consumption. In addition, the generalization and standardization of precast concrete thermal insulation wall panels in the basement of independent houses can also be realized.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:

1 is a schematic plan view of a precast concrete thermal insulation wall panel in a basement of an independent house of the present invention;

FIG. 2 is a schematic side view of a precast concrete thermal insulation wall panel in a basement of an independent house according to the present invention.

In the figure: 1 is the concrete slab; 2 is the concrete connecting ear; 3 is the concrete rib; 4 is the connecting steel bar; 5 is the base plate; 6 is the insulation board, 7 is the waterproof rubber strip groove;

Detailed ways

In order to further illustrate the present invention, the present invention will be described in detail below with reference to the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention.

As shown in Figures 1 and 2, a prefabricated concrete thermal insulation wall panel for a basement of an independent house of the present invention includes a concrete slab 1, a concrete rib 3 and a base slab 5. The concrete slab 1 is arranged vertically, the base slab 5 is arranged horizontally, and the concrete slab 1 and the base plate 5 are orthogonally connected, and the side projection is L-shaped; the concrete rib 3 is a number of vertical uniformly distributed concrete vertical ribs, and the upper and lower ends of the concrete rib 3 are flush with the upper and lower ends of the concrete slab 1; The bottom of the dense rib 3 is connected with the base plate 5; the concrete plate 1 and the concrete dense rib 3 are connected by a number of concrete connection ears 2 evenly distributed up and down, and the concrete connection ears 2 on the top are connected with the concrete plate 1 and the concrete dense rib 2. The top surface of the rib 3 is flush; a thermal insulation board 6 is arranged between each vertical row of concrete connecting ears 2, the horizontal end of the thermal insulation plate 6 is rectangular serrated, and the rectangular serrations are inserted into the adjacent two concrete connecting ears 2 vertically one by one. The thickness of the thermal insulation board 6 is the length a of the concrete connecting pick ears 2 . At the center of the concrete rib 3 and the reinforcing bars set on the center line of the concrete slab 1 corresponding to the center of each concrete rib 3, the reinforcing bars protrude from the upper surface to form connecting reinforcing bars 4; The outer surface of the rib 3 is provided with a vertical waterproof rubber strip groove 7, and the cross section of the waterproof rubber strip groove is semicircular. On the two rows of concrete connecting ears 2 located at both ends in the horizontal direction, each row is provided with 3-6 connecting screw holes 8, and the connecting screw holes 8 pass through the concrete connecting ears 2 and point to the horizontal ends.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (4)

1. A prefabricated concrete thermal insulation wall panel for a basement of an independent house, characterized in that: comprising a concrete slab (1), a concrete rib (3) and a base plate (5), the concrete slab (1) is vertically arranged, and the base plate (5) ) is set horizontally, the concrete slab (1) is orthogonally connected with the base slab (5), and the side projection is L-shaped; the concrete rib (3) is a number of vertical uniformly distributed concrete vertical ribs, and the concrete rib (3) The upper and lower ends are flush with the upper and lower ends of the concrete slab (1). The evenly distributed concrete connecting lugs (2) are connected, and the concrete connecting lugs (2) at the top are flush with the top surfaces of the concrete slab (1) and the concrete rib (3). A thermal insulation board (6) is arranged between the thermal insulation boards (6), the horizontal ends of the thermal insulation board (6) are rectangular serrations, and the rectangular serrations are inserted into the vertical gaps of two adjacent concrete connecting ears (2) one by one; the center of the concrete rib (3), and the reinforcing bars arranged on the center line of the concrete slab (1) corresponding to the center of each concrete rib (3) protrude from the upper surface to form connecting reinforcing bars (4); at the horizontal ends of the concrete slab (1), and two The outer surfaces of the end concrete ribs (3) are all provided with vertical waterproof rubber strip grooves (7). 2. The prefabricated concrete thermal insulation wall panel of an independent house basement according to claim 1, characterized in that: on the two rows of concrete connecting ears (2) at both ends in the horizontal direction, each row is provided with 3-6 connecting screws Holes (8), the connecting screw holes (8) pass through the concrete connecting ears (2) and point to the horizontal ends. 3 . The prefabricated concrete thermal insulation wall panel for the basement of an independent house according to claim 1 , wherein the thickness of the thermal insulation board ( 6 ) is the length of the concrete connecting ears ( 2 ). 4 . 4 . The prefabricated concrete thermal insulation wall panel for the basement of an independent house according to claim 1 , wherein the cross section of the waterproof rubber strip groove ( 7 ) is semicircular. 5 .

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