CN204662725U - Self-heat conserving superimposed sheet concrete shear force wall - Google Patents

Abstract

The utility model discloses a self-insulation composite plate concrete shear wall structure, which comprises an outer leaf plate; a thermal insulation layer interposed between the outer leaf plate and the concrete laminated wall plate; the concrete laminated wall plate is prefabricated by the first layer slab, the second layer of prefabricated slab, lattice reinforcement, core cast-in-place concrete layer and connecting bars; anchors, used to connect the outer leaf slab and concrete laminated wall panel; concrete cushion, between the upper and lower layers of concrete laminated Between the composite wall panels; building sealant, applied on the outside of the concrete cushion to achieve the purpose of waterproofing; connecting ribs, used to connect the upper and lower concrete composite wall panels into one. The utility model improves building energy-saving efficiency and structural durability by arranging an insulating layer between the concrete laminated wall panels and the outer leaf panels. At the same time, compared with the sandwich external thermal insulation wall panels, one layer of concrete panels is missing, which increases the construction efficiency. Use space efficiently.

Description

Self-insulating laminated slab concrete shear wall

technical field

The utility model relates to the field of concrete shear walls, in particular to a concrete shear wall with self-insulation laminated plates.

Background technique

my country is a country with a large energy consumption, and building energy consumption accounts for about 30% of the total energy consumption, while building envelope not only accounts for a large proportion of building energy consumption, but also directly affects the thermal insulation performance of building structures. The thermal insulation performance of building structures has continuously put forward high standards and high requirements. my country is also developing and innovating in building thermal insulation walls. At present, the main thermal insulation walls used include external thermal insulation walls, internal thermal insulation walls and prefabricated thermal insulation walls (sandwich type insulation wall or sandwich exterior wall panels) three kinds. The external thermal insulation wall is to set the thermal insulation layer outside the main body of the building structure during construction. It is a commonly used thermal insulation technology at present. It can increase the effective space of the building and improve the living comfort. The thermal insulation effect is good, but there are serious problems. problems of fire prevention and durability; the inner insulation wall is to set the insulation layer inside the main structure of the building, and then add a protective layer, which has the advantages of fast construction speed and flexible operation, but there is a cold bridge phenomenon, which has a great impact on interior decoration. The inner insulation layer is fragile and other problems; the sandwich outer wall panel is a new type of sandwich insulation wall, which has the characteristics of energy saving, environmental protection, durability and fire resistance, and is suitable for industrial production. Buildings are severely limited in their efficient use of space.

In order to solve the above problems, it is urgent to develop new wall structure systems and materials. The development of new wall systems and materials is an important measure to save energy, reduce emissions, and improve the environment. It is an important content of sustainable development. urgent need. The utility model provides a self-insulation laminated slab concrete shear wall structure, which can increase the effective use space of the building, improve the comfort of living, has good heat preservation effect, fire prevention performance and durability, energy saving and environmental protection, and realizes good economic efficiency. Benefits and social benefits are the main development direction of my country's future construction projects. Therefore, the development of this system is of great significance to promote the process of urbanization, to promote the structural adjustment and technological progress of wall materials, to improve the quality of construction projects and to improve building functions.

SUMMARY OF THE UTILITY MODEL The purpose of this utility model is to provide a self-insulating laminated slab concrete shear wall to solve the problems existing in the prior art.

In order to achieve the above object, the technical solution adopted in the utility model is:

The self-insulating composite slab concrete shear wall is characterized in that it includes vertically arranged upper and lower concrete composite wall panels with the same structure, and a concrete cushion poured between the upper and lower concrete composite wall panels, the upper and lower concrete composite wall panels, The lower layer of concrete laminated wall panels includes the first layer of prefabricated slabs, the second layer of prefabricated slabs and the lattice steel bars connected between the first and second layer of prefabricated slabs. In the cast-in-situ concrete layer, the upper and lower concrete composite wall panels are respectively provided with connecting bars, and the connecting bars in the upper layer of concrete composite wall panels extend into the lower concrete composite wall panels and are poured as a whole. The connecting ribs in the wall panels are extended into the upper concrete composite wall panels and poured as a whole. In the upper and lower concrete composite wall panels, the outer walls of the first layer of prefabricated panels are arranged in sequence with an insulation layer and an outer leaf plate. The first layer A plurality of anchors are respectively connected to the outside of the prefabricated board, and the anchors pass through the insulation layer and extend into the outer leaf plate.

The self-insulating composite slab concrete shear wall is characterized in that: the outside of the concrete cushion, that is, the top and bottom of the outer leaf plate and the insulation layer are sealed with building sealant.

The self-insulating laminated slab concrete shear wall is characterized in that the outer leaf plate, insulation layer, anchors, first-layer prefabricated slab, second-layer prefabricated slab, and lattice steel bars are prefabricated as one.

The self-insulating composite slab concrete shear wall is characterized in that: in the upper layer of concrete composite wall panels, hanging ribs are pre-embedded between the top of the first layer of prefabricated slab and the top of the second layer of prefabricated slab.

The self-insulating laminated slab concrete shear wall is characterized in that: the thickness of the outer leaf plate is 40-60 mm, and double-layer steel mesh sheets are arranged in the outer leaf plate to resist temperature stress and shrinkage stress in the process of concrete setting ; The thickness of the insulation layer is 40~60mm, and the thermal conductivity of the materials used is 0.018~0.024W/(m·k); the thickness of the first layer of prefabricated panels is 50~60mm, and the reinforcement is calculated according to the calculation; the thickness of the second layer of prefabricated panels is 50~ 60mm, reinforced according to the calculation; the thickness of the core cast-in-place concrete layer is 100~180mm, in which there are only two rows of lattice steel bars, and the reserved connecting bars are inserted into this layer.

The described self-insulation laminated slab concrete shear wall is characterized in that: the height of the lattice reinforcement is selected according to the total thickness of the first layer of prefabricated slab, the core cast-in-place concrete layer, and the second layer of prefabricated slab to ensure the distance between the layers. The connection is reliable.

The self-insulating composite slab concrete shear wall is characterized in that: the strength of the connecting bars is determined according to the capacity design, and the diameter of the connecting bars is greater than or equal to 12mm.

The self-insulating laminated slab concrete shear wall is characterized in that: the thickness of the concrete cushion is 30-60mm, and its strength grade is one grade higher than that of the upper and lower self-insulating laminated slab concrete shear walls or the concrete strength grade of the foundation; The position of the concrete pad is the width position of the first prefabricated slab, the core cast-in-place concrete layer, and the top and bottom of the second prefabricated slab.

The self-insulating laminated slab concrete shear wall is characterized in that: the outer leaf plate and the first layer of prefabricated slab are connected by tie parts, and the tie parts are FRP connectors or pre-embedded sleeves, which are distributed in a point shape Set, the spacing of the anchors is calculated and determined according to the actual situation.

The beneficial effects achieved by the utility model:

1. It can realize factory production, shorten the construction period, and meet the needs of housing industrialization;

2. It can ensure that the structure has many advantages such as good integrity, appropriate rigidity, good ductility, superior energy dissipation capacity, and high construction quality;

3. It has a stable thermal insulation system, good thermal insulation performance, and meets the building energy-saving standards required by the state;

4. Increase the effective use space of the building and improve the living comfort;

5. It has good fireproof performance, good durability, prolongs the life of the structure, and realizes good economic and social benefits.

Therefore, the development of this system is of great significance to promote the process of urbanization, to promote the structural adjustment and technological progress of wall materials, to improve the quality of construction projects and to improve building functions.

Description of drawings

Fig. 1 is a vertical schematic diagram of the node joints of the self-insulating laminated slab concrete shear wall structure of the present invention.

Fig. 2 is a transverse schematic diagram of the node joints of the self-insulating laminated slab concrete shear wall structure of the present invention.

Detailed ways

As shown in Fig. 1 and Fig. 2, the self-insulating composite slab concrete shear wall includes vertically arranged upper and lower concrete composite wall panels with the same structure, and concrete poured between the upper and lower concrete composite wall panels. Cushion layer 9, the upper and lower layers of concrete laminated wall panels respectively include the first layer of prefabricated panels 3, the second layer of prefabricated panels 5 and the corrugated lattice steel bars supported between the first and second layers of precast panels 3 and 5 7. The core cast-in-place concrete layer 4 is poured between the first and second prefabricated panels 3 and 5, and the upper and lower concrete composite wall panels are respectively provided with connecting ribs 8, and the upper concrete composite wall panels are connected The inserting bars extend into the lower concrete laminated wall panels and are poured as a whole; The outer wall of a layer of prefabricated panels 3 is successively provided with an insulation layer 2 and an outer leaf plate 1 , and a plurality of anchors 6 are respectively connected to the outside of the first layer of prefabricated panels 3 , and the anchors 6 pass through the insulation layer 2 and extend into the outer leaves. Plate 1.

The outside of the concrete cushion 9, that is, the top and bottom of the outer leaf plate 1 and the insulation layer 2 are sealed 10 with building sealant.

The outer leaf plate 1, the thermal insulation layer 2, the anchors 6, the first layer of prefabricated panels 3, the second layer of prefabricated panels 5, and the lattice steel bars 7 are prefabricated as one.

In the upper layer of concrete laminated wall panels, hanging ribs 11 are pre-embedded between the tops of the first layer of prefabricated panels 3 and the second layer of prefabricated panels 5 .

The thickness of the outer blade 1 is 40~60mm, and double-layer steel mesh sheets are arranged in the outer blade 1 to resist the temperature stress and the shrinkage stress during the concrete setting process; the thickness of the insulation layer 2 is 40~60mm, and the thermal conductivity of the material used is 0.018 ~0.024W/(m·k); the thickness of the first layer of prefabricated slab 3 is 50~60mm, and the reinforcement is calculated according to the calculation; the thickness of the second layer of prefabricated slab 5 is 50~60mm, and the reinforcement is calculated according to the calculation; The thickness is 100~180mm, and there are only two rows of lattice steel bars, and the reserved connecting bars 8 are inserted into this layer.

The height of the lattice reinforcement 7 is selected according to the total thickness of the first prefabricated slab 3, the core cast-in-place concrete layer 4, and the second prefabricated slab 5, so as to ensure reliable connection between the layers.

The strength of the connecting rib 8 is originally determined according to the capacity design, and the diameter of the connecting rib 8 is greater than or equal to 12mm.

The thickness of the concrete cushion 9 is 30~60mm, and its strength grade is one level higher than that of the upper and lower self-insulation laminated slab concrete shear walls or the concrete strength grade of the foundation; the position of the concrete cushion 9 is the first layer of precast slab 3, the core Pour the concrete layer 4, the top and bottom width positions of the second layer of prefabricated slab 5.

The outer leaf plate 1 and the first layer of prefabricated panels 3 are connected by anchors 6. The anchors 6 are FRP connectors or embedded sleeves, which are arranged in a point-like distribution. The distance between the anchors 6 is calculated according to the actual situation. Sure.

In the present utility model, the thickness of the outer leaf plate 1 is 50mm, and the concrete strength grade is C35. The insulation layer 2 is a hard foam polyurethane insulation board with a thickness of 50mm. The thickness of the first prefabricated slab 3 is 50mm, and the concrete strength grade is C35. The thickness of the core cast-in-place concrete layer 4 is 160mm, and the concrete strength grade is C35. The thickness of the second layer of prefabricated slab 5 is 50mm, and the concrete strength grade is C35. The thickness of the concrete cushion 9 is 40mm, and the concrete strength grade is C40. The building sealant 10 is polyurethane. The anchor 6 is an FRP connector. The height of lattice steel bar 7 is 210mm. The pre-embedded hanger 11 is an A-shaped member processed from HRB400 steel bars with a diameter of 18 mm. The connecting rib 8 is a HRB400 steel bar with a diameter of 16mm. The length of the connecting rib 8 inserted into the upper core cast-in-place concrete layer 4 is 500mm or 800mm. The length of the connecting rib 8 inserted into the lower core cast-in-place concrete layer 4 is 500mm or 800mm. The distance between the edge of the connecting bar 8 and the edge of the layer core cast-in-place concrete layer 4 is 15mm.

Claims (9)

1. Self-insulation laminated slab concrete shear wall, characterized in that: it includes vertically arranged upper and lower concrete laminated wall panels with the same structure, and a concrete cushion poured between the upper and lower concrete laminated wall panels, The upper and lower concrete composite wall panels respectively include the first prefabricated slab, the second prefabricated slab and the lattice steel bars connecting the first and second prefabricated slabs. The core cast-in-place concrete layer, the upper and lower concrete composite wall panels are respectively provided with connecting bars, and the connecting bars in the upper concrete composite wall panels extend into the lower concrete composite wall panels and are poured as a whole. The connecting ribs in the combined wall panels extend into the upper concrete laminated wall panels and are poured as a whole. The outer walls of the first layer of prefabricated panels in the upper and lower concrete laminated wall panels are successively provided with insulation layers and outer leaves. A plurality of anchors are respectively connected to the outside of the prefabricated panels, and the anchors pass through the insulation layer and extend into the outer leaf plate. 2. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the outside of the concrete cushion, that is, the top and bottom of the outer leaf plate and the insulation layer are sealed with building sealant. 3. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the outer leaf plate, the insulation layer, the anchors, the first layer of prefabricated panels, the second layer of prefabricated panels, and the lattice reinforcement Prefabricated as one. 4. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: in the upper layer of concrete laminated wall panels, hanging ribs are pre-embedded between the top of the first layer of prefabricated slab and the top of the second layer of prefabricated slab . 5. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the thickness of the outer leaf plate is 40-60mm, and double-layer steel mesh sheets are arranged in the outer leaf plate to resist temperature stress and concrete Shrinkage stress during the condensation process; the thickness of the insulation layer is 40~60mm, and the thermal conductivity of the materials used is 0.018~0.024W/(m k); the thickness of the first layer of prefabricated panels is 50~60mm, and the reinforcement is calculated according to the calculation; the second layer The thickness of the prefabricated slab is 50~60mm, and the reinforcement is calculated according to the calculation; the thickness of the core cast-in-place concrete layer is 100~180mm, in which there are only two rows of lattice steel bars, and the reserved connecting bars are inserted into this layer. 6. self-insulation laminated slab concrete shear wall according to claim 1, is characterized in that: the height of lattice reinforcement is selected according to the total thickness of first floor prefabricated slab, core cast-in-place concrete layer, second floor prefabricated slab, Ensure reliable connections between layers. 7. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the strength of the connecting bars is determined according to the capacity design principle, and the diameter of the connecting bars is greater than or equal to 12mm. 8. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the thickness of the concrete cushion is 30 to 60 mm, and its strength grade is higher than that of the upper and lower self-insulating laminated slab concrete shear walls or the concrete strength of the foundation The grade is one grade higher; the position of the concrete pad is the width position of the first precast slab, the core cast-in-place concrete layer, and the top and bottom of the second precast slab. 9. The self-insulating laminated slab concrete shear wall according to claim 1, characterized in that: the outer leaf plate and the first prefabricated slab are connected by a tie, and the tie is an FRP connector or a pre-embedded sleeve The cylinder is arranged in a point-like distribution, and the distance between the anchors is calculated and determined according to the actual situation.