Assembled external wall panel connection node structure based on double-z-shaped steel-mortise-friction multiple energy dissipation and construction technology thereof

Abstract

The application discloses a kind of based on double Z type steel-mortise-friction multiple energy consumption's fabricated external hanging wallboard connecting node structure and its construction technology, it is related to the field of fabricated steel structure external hanging wallboard building.First connecting node includes first double Z type steel component and first angle steel, Z type steel component is connected external hanging wallboard by corresponding adjusting hole, bolt connection between two, first angle steel other side limb back is connected main frame steel beam by adjusting hole.Second connecting node includes resettable anti-sliding concave-convex surface steel plate, second double Z type steel component and second angle steel, the concave-convex surface of second double Z type steel component and resettable anti-sliding concave-convex surface steel plate are according to mortise principle occlusal butt joint, concave-convex surface steel plate is welded on the outer side surface of steel beam flange, second double Z type steel component is connected external hanging wallboard by adjusting hole on both sides, second angle steel is attached to the outer side surface of second double Z type steel component, and it is connected with main frame steel beam by adjusting hole.The energy dissipation performance of the application is better, bearing capacity is high, installation precision is high, and stability is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of prefabricated steel structure external wall panel building, in particular to a prefabricated external wall panel connecting node structure based on double Z-shaped steel-mortise-friction multiple energy dissipation and a construction process thereof, wherein the lower node is a resettable anti-sliding combined structure based on the mortise principle of occlusion connection, the node is suitable for the installation of prefabricated external wall panels and meets the energy dissipation under the influence of external forces such as earthquakes. BACKGROUND

[0002] Prefabricated building is a building mode that meets the environmental protection requirements. In prefabricated building, the on-site operation in construction is transferred to the factory for manufacturing, processing and assembly, and the flow line type construction mode significantly improves the building quality, construction technology and efficiency. External wall panel gradually becomes the main assembly component of prefabricated building, and its application is more and more widely. The connecting node, as a key component connecting the wall panel and the main structure, directly affects the overall stiffness, stability, bearing capacity and seismic performance of the prefabricated building structure. At present, the connecting node of prefabricated steel structure external wall panel develops from rigid node to flexible energy dissipation node, that is, it can meet the good cooperation between the wall panel and the frame. However, the existing energy dissipation connecting node has the problems of difficult construction, poor meeting of the installation error and energy dissipation requirement of the wall panel in all directions, and cannot be used again after the destructive deformation under the action of major external force. Therefore, it is necessary to improve the existing connecting node to solve the above problems. SUMMARY

[0003] In order to solve the problems of difficult construction, poor meeting of the installation error and energy dissipation requirement of the wall panel in all directions, and cannot be used again after the destructive deformation under the action of major external force of the prefabricated external wall panel connecting node, the present application provides a prefabricated external wall panel connecting node structure based on double Z-shaped steel-mortise-friction multiple energy dissipation and a construction process thereof.

[0004] The application is implemented by the following technical scheme: a kind of based on double Z type steel-tenon-mortise-friction multiple energy dissipation's fabricated exterior wall panel connecting node structure, including first connecting node and second connecting node for connecting exterior wall panel and main frame, the main frame includes steel beam;The first connecting node includes first double Z type steel member and first angle steel, the section of the middle part of the first double Z type steel member presents obtuse isosceles trapezoid, first double Z type steel member two sides steel limb is respectively opened with first adjusting hole and second adjusting hole, the first adjusting hole and second adjusting hole are vertical direction's hole, first double Z type steel member is connected with the first inner thread sleeve of exterior wall panel by high-strength bolt D at first adjusting hole and second adjusting hole, the top surface of first double Z type steel member and the one side steel limb of first angle steel are locked and positioned by high-strength bolt C, the other side steel limb of the first angle steel is equipped with third adjusting hole and fourth adjusting hole, the third adjusting hole and fourth adjusting hole are the hole perpendicular to exterior wall panel, and first angle steel is connected with the lower flange of steel beam of main frame by high-strength bolt A at third adjusting hole and fourth adjusting hole;The second connecting node includes a resettable anti-sliding concave-convex steel plate, second double Z type steel member and second angle steel, the resettable anti-sliding concave-convex steel plate is welded to the upper flange surface of main frame steel beam, the section of the middle part of the second double Z type steel member presents obtuse isosceles trapezoid, the two sides steel limb of the second double Z type steel member is respectively opened with fifth adjusting hole and sixth adjusting hole, the fifth adjusting hole and sixth adjusting hole are horizontal direction's hole, the second double Z type steel member is connected with the second inner thread sleeve of exterior wall panel by high-strength bolt E at fifth adjusting hole and sixth adjusting hole, the inner side surface of the middle part of the second double Z type steel member is concave-convex surface, and with the one side of resettable anti-sliding concave-convex steel plate according to the principle of mortise and tenon occlusal butt joint, the outer side surface of the second double Z type steel member is attached to the one side steel limb of second angle steel, the other side steel limb is equipped with seventh adjusting hole and eighth adjusting hole, the seventh adjusting hole and eighth adjusting hole are the hole perpendicular to exterior wall panel, and second angle steel is connected with the upper flange of steel beam of main frame by high-strength bolt B at seventh adjusting hole and eighth adjusting hole.

[0005] The application discloses a kind of based on double Z type steel-tenon-mortise-friction multiple energy consumption's fabricated exterior wall panel connecting node structure, mainly by two different connecting nodes with the steel beam of main body frame and exterior wall panel are assembled into one body.The connecting node structure includes the first connecting node and the second connecting node for connecting the main body frame and the exterior wall panel, and the main body frame mainly includes steel beam;First connecting node is located at the lower flange of steel beam, and the second connecting node is usually located at the upper flange of steel beam.The first connecting node includes first double Z type steel component and first angle steel, the section of middle part of first double Z type steel component presents obtuse isosceles trapezoidal, first double Z type steel component is opened with first adjusting hole and second adjusting hole on two sides steel limb respectively, first adjusting hole and second adjusting hole are vertical direction holes, first double Z type steel component is connected with the first inner thread sleeve of exterior wall panel by high-strength bolt D at first adjusting hole and second adjusting hole, so that first connecting node is connected into one body with exterior wall panel, the top surface of first double Z type steel component and the side steel limb of first angle steel are locked and positioned by high-strength bolt C, the other side steel limb of first angle steel is equipped with third adjusting hole and fourth adjusting hole, third adjusting hole and fourth adjusting hole are holes perpendicular to exterior wall panel, and first angle steel is connected with the lower flange of steel beam of main body frame by high-strength bolt A at third adjusting hole and fourth adjusting hole, so that the lower flange of steel beam is connected into one body with exterior wall panel.The second connecting node includes a resettable anti-sliding concave-convex steel plate, second double Z type steel component and second angle steel, and is connected into one body with the upper flange of steel beam and exterior wall panel, the resettable anti-sliding concave-convex steel plate is welded to the upper flange surface of steel beam of main body frame, satisfies mortise requirement, the section of middle part of second double Z type steel component presents obtuse isosceles trapezoidal, second double Z type steel component is opened with fifth adjusting hole and sixth adjusting hole on two sides steel limb respectively, fifth adjusting hole and sixth adjusting hole are horizontal direction holes, second double Z type steel component is connected with the second inner thread sleeve of exterior wall panel by high-strength bolt E at fifth adjusting hole and sixth adjusting hole, so that second connecting node is connected into one body with exterior wall panel, the inner side surface of middle part of second double Z type steel component is concave-convex surface, and the side of resettable anti-sliding concave-convex steel plate according to mortise principle is engaged with the other side of resettable anti-sliding concave-convex steel plate, which realizes three-dimensional direction adjustment when assembling exterior wall panel, reduces installation error, and increases multiple energy consumption capacity of node in each direction.The other side steel limb of second angle steel is equipped with seventh adjusting hole and eighth adjusting hole, seventh adjusting hole and eighth adjusting hole are holes perpendicular to exterior wall panel, and second angle steel is connected with the upper flange of steel beam of main body frame by high-strength bolt B at seventh adjusting hole and eighth adjusting hole, so that the upper flange of steel beam is connected into one body with exterior wall panel.Under the action of external force such as earthquake, energy can be consumed through the adjusting holes of the components in each direction and the double Z-shaped steel. Under the action of vertical load, the convex hemispheres of the reset anti-sliding concave-convex surface mortise and tenon engagement structure can smoothly slide out of or into the hemispherical grooves along the force direction, meeting the energy consumption requirement of the external wall panel in the vertical direction on the panel surface, and having deformation memory and reset property.

[0006] The construction process of the double Z-shaped steel-mortise-friction multiple energy consumption assembly type external wall panel connecting node structure is as follows: the external wall panel is fixed on the upper and lower adjacent and parallel steel beams in the main frame, the upper and lower flanges of the steel beams are connected to the external wall panel in the same way, that is, the upper flange is connected to the upper external wall panel through the second connecting node, and the lower flange is connected to the lower external wall panel through the first connecting node. The upper and lower adjacent steel beams are respectively the upper steel beam and the lower steel beam, that is, the first connecting node of the external wall panel is connected to the lower flange surface of the upper steel beam, and the lower connecting node of the external wall panel is connected to the upper flange surface of the lower steel beam, and the construction process comprises the following steps:

[0007] Step one, weld the reset anti-sliding concave-convex steel plate of the second connecting node at the designed position of the upper flange surface of the main frame steel beam, with the concave-convex surface inward;

[0008] Step two, align the first bolt hole of the first angle steel with the second bolt hole of the first double Z-shaped steel component, and lock and connect through the high-strength bolt C;

[0009] Step three, align the first adjusting hole and the second adjusting hole of the two steel limbs of the first double Z-shaped steel component with the first internal thread sleeve of the external wall panel, and pre-tighten and connect through the high-strength bolt D;

[0010] Step four, hoist the connected external wall panel to the installation position on one side of the main frame steel beam, align the concave-convex surface of the second double Z-shaped steel component with the concave-convex surface of the steel plate, align the fifth adjusting hole and the sixth adjusting hole of the steel component with the second internal thread sleeve of the external wall panel, and pre-tighten and connect through the high-strength bolt E;

[0011] Step five, adjust the height of the external wall panel, that is, adjust the height of the second double Z-shaped steel component of the second connecting node, and at the same time, adjust the locking state of the high-strength bolt D in step three, and when the spacing requirement between the lower side of the second double Z-shaped steel component and the upper flange of the main frame steel beam is met, lock the high-strength bolt D, that is, complete the positioning of the height of the external wall panel;

[0012] Step six, adjust the distance between the outer hanging wallboard and the main frame steel beam, and adjust the locking state of the high-strength bolt E in step four, that is, adjust the in-plane horizontal position of the second double Z-shaped steel member wallboard to meet the occlusion matching of the convex hemispherical part of the second double Z-shaped steel member and the semispherical groove of the reset anti-sliding concave-convex steel plate, and lock the third adjusting hole and the fourth adjusting hole of the first angle steel and the main frame steel beam through the high-strength bolt A, that is, complete the load bearing of the first connecting node of the outer hanging wallboard; At the same time, lock the high-strength bolt E in step four;

[0013] Step seven, the steel limb of the second angle steel of the second connecting node is tightly attached to the top surface of the second double Z-shaped steel member, and the seventh adjusting hole and the eighth adjusting hole of the other side steel limb are locked and connected through the high-strength bolt B, that is, the installation of the second connecting node of the outer hanging wallboard is completed; The above steps complete the connection construction of the double Z-shaped steel-mortise-friction multiple energy dissipation assembly type outer hanging wallboard connecting node system.

[0014] Preferably, the number of first inner thread sleeves on the outer hanging wallboard is two, which are matched with the first adjusting hole and the second adjusting hole respectively; The number of second inner thread sleeves on the outer hanging wallboard is two, which are matched with the fifth adjusting hole and the sixth adjusting hole respectively, that is, the spacing and the diameter size are matched. Through this structure, it is ensured that the outer hanging wallboard can be connected with the steel beam of the main frame through the first connecting node and the second connecting node.

[0015] Preferably, the opening side of the first double Z-shaped steel member and the second double Z-shaped steel member is chamfered; through this design, the influence of concentrated force at the bending part of the Z-shaped steel member can be reduced, thereby improving the node life and energy dissipation capacity.

[0016] Preferably, the first double Z-shaped steel member and the second double Z-shaped steel member satisfy the energy dissipation in the horizontal direction of the outer hanging wallboard; through this structure, the node energy dissipation performance is improved, the node deformation is stable, and the service life is long. The lower side of the second double Z-shaped steel member and the upper flange of the main frame steel beam leave a spacing for the installation error and energy dissipation of the outer hanging wallboard in the vertical direction; the top surface size d1 of the second double Z-shaped steel member, the limb width d2 of the second angle steel, and the width d3 of the concave-convex steel plate satisfy d1≥d2 and d1≥d3, so as to ensure the installation of the second double Z-shaped steel member.

[0017] Preferably, the total height of the cross-section of the second double Z-shaped steel member is H, and the thickness of the middle part of the second double Z-shaped steel member is t. The resettable anti-slip concave-convex steel plate is welded to the upper flange of the main frame steel beam before the installation of the external wall panel, and the distance d from the inner side of the resettable anti-slip concave-convex steel plate to the edge of the upper flange of the main frame steel beam is ≤ Ht. In this structure, the resettable anti-slip concave-convex steel plate is welded first, then the second double Z-shaped steel member is installed, and finally the second angle steel is installed to fit tightly against the second double Z-shaped steel member. Finally, it is connected to the main body by high-strength bolts. This installation sequence can reduce the installation error of the lower node; by controlling the welding position of the resettable anti-slip concave-convex steel plate, the distance between the external wall panel and the main body can be adjusted.

[0018] Preferably, the inner surface of the repositionable anti-slip concave-convex steel plate is provided with hemispherical grooves or raised hemispheres. The concave-convex surface of the inner side of the second double Z-shaped steel member matches the repositionable anti-slip concave-convex steel plate with raised hemispheres or hemispherical grooves. The hemispherical grooves and raised hemispheres have the same distribution spacing and matching degree, and the two are engaged by mortise and tenon joints. This structure can increase the strength of the joint and meet the energy dissipation requirements in the vertical direction within the wall panel. When the external force is too large, the joint will slip or shift. When the second double Z-shaped steel member is engaged with the repositionable anti-slip concave-convex steel plate, a certain distance is left between the lower side of the second double Z-shaped steel member and the main body to ensure its vertical mobility during energy dissipation. Under external force, the external wall panel slides vertically. When the energy dissipation of the lower node reaches a certain limit, the protruding hemisphere in the second double Z-shaped steel component smoothly slides out and in from the hemispherical groove along the direction of the force, following the vertical movement of the external wall panel and changing the engagement position with the resettable anti-slip concave-convex steel plate. Through this structure, the vertical sliding of the external wall panel is achieved in conjunction with the first and second adjustment holes of the steel limbs on both sides of the first double Z-shaped steel component. The lower node can also be manually reset, enabling reuse, extending the node's lifespan, and providing deformation memory and resettlement capability. This structure increases the friction between the second double Z-shaped steel component and the resettable anti-slip concave-convex steel plate, improving the node strength and friction energy dissipation capacity. The friction energy dissipation corresponds to the friction of the elongated hole and the mortise and tenon sliding.

[0019] Preferably, stiffening ribs are installed between the two steel legs of the first angle steel to increase its stability, and stiffening ribs are also installed between the two steel legs of the second angle steel. This can increase the stability of the first and second angle steels, ensuring that they will not be damaged, and at the same time improve the energy dissipation capacity of the wall panel in the front and rear directions.

[0020] Preferably, each adjustment hole on the first angle steel, the second angle steel, the first double Z-shaped steel component, and the second double Z-shaped steel component is a strip-shaped hole adapted to the adjustment of high-strength bolts, that is, an oblong hole.

[0021] Preferably, the first adjusting hole and the second adjusting hole of the steel limb on both sides of the first double Z-shaped steel component meet the installation error and energy consumption in the vertical direction of the outer hanging wallboard surface; the fifth adjusting hole and the sixth adjusting hole of the steel limb on both sides of the second double Z-shaped steel component meet the installation error and energy consumption in the horizontal direction of the outer hanging wallboard surface; the third adjusting hole and the fourth adjusting hole of the first angle steel and the seventh adjusting hole and the eighth adjusting hole of the second angle steel meet the installation error and energy consumption in the outward direction of the outer hanging wallboard surface. Through the structure, three-dimensional installation precision and energy consumption requirements of the outer hanging wallboard are realized.

[0022] Compared with the prior art, the application has the following beneficial effects: the double Z-shaped steel-mortise-friction multiple energy consumption assembly type outer hanging wallboard connecting node structure and construction process provided by the application reduces on-site welding, mainly adopts bolt connection, and sets adjusting holes in each direction, the lower node is provided with a reset anti-sliding concave-convex surface steel plate and a second double Z-shaped steel component which are engaged and connected through the mortise and tenon principle, which realizes the adjustment in three-dimensional directions when the outer hanging wallboard is assembled, reduces the installation error, increases the multiple energy consumption capacity of the node in each direction, and the node component is simple to install and has high construction efficiency; under the action of external forces such as earthquakes, energy can be consumed through the friction between the components, the adjusting holes in each direction and the double Z-shaped steel, the reset anti-sliding mortise and tenon engagement structure at the lower node can smoothly slide out of and into the semispherical groove along the force action direction under the action of vertical load, which meets the energy consumption requirement in the vertical direction of the outer hanging wallboard surface and has deformation memory and reset property. The application has the advantages of simple structure, convenient installation, easy assembly and construction, small installation error, high node strength, stability and energy consumption capacity, and can realize node reset and reuse, and is suitable for use as an assembly type outer hanging wallboard node and improvement of the same type of node design. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the energy consumption node connecting structure between the outer hanging wallboard and the main medium steel beam of the application.

[0024] Figure 2 is a size detail view of the second connecting node of the application.

[0025] Figure 3 is a connecting structure schematic view of the first connecting node and the outer hanging wallboard of the application.

[0026] Figure 4 is a connecting structure schematic view of the second connecting node and the outer hanging wallboard of the application.

[0027] Figure 5 is a structure schematic view of the first double Z-shaped steel component and the first angle steel of the application.

[0028] Figure 6 is a structure schematic view of the second double Z-shaped steel component and the second angle steel of the application.

[0029] Figure 7 is a second double Z-shaped steel member and a resettable anti-sliding concave-convex surface steel plate occlusion part structure schematic diagram of the application.

[0030] Figure 8 is a second double Z-shaped member cross-sectional size schematic diagram of the application.

[0031] The figure is marked as follows: 1-outer hanging wallboard, 101-upper inner wire sleeve, 102-lower inner wire sleeve, 2-upper shaped steel beam, 3-lower shaped steel beam, 4-first double Z-shaped steel member, 401-first adjusting hole, 402-second adjusting hole, 403-second bolt hole, 5-first angle steel, 501-third adjusting hole, 502-fourth adjusting hole, 503-first bolt hole, 504-first stiffening rib, 6-second angle steel, 601-second stiffening rib, 602-seventh adjusting hole, 603-eighth adjusting hole, 7-second double Z-shaped steel member, 701-fifth adjusting hole, 702-sixth adjusting hole, 703-hemispherical convex surface of the second double Z-shaped steel, 8-resettable anti-sliding concave-convex surface steel plate, 801-hemispherical concave surface of the resettable anti-sliding concave-convex surface steel plate, 9-high-strength bolt A, 10-high-strength bolt B, 11-high-strength bolt C, 12-high-strength bolt D, 13-high-strength bolt E. DETAILED DESCRIPTION

[0032] The application is further described below in combination with specific embodiments.

[0033] A kind of based on double Z-shaped steel-mortise-friction multiple energy dissipation assembly type outer hanging wallboard connecting joint structure, as shown in Figures 1-6As shown: including the first connecting node and the second connecting node for connecting the external wall panel 1 and the main frame, the main frame includes steel beam; the first connecting node includes a first double Z-shaped steel member 4 and a first angle steel 5, the middle part of the first double Z-shaped steel member 4 is an obtuse isosceles trapezoidal section, the first double Z-shaped steel member 4 is respectively provided with a first adjusting hole 401 and a second adjusting hole 402 on the two steel limbs, the first adjusting hole 401 and the second adjusting hole 402 are vertical holes, the first double Z-shaped steel member 4 is connected with the first inner thread sleeve 101 of the external wall panel 1 through high-strength bolts D12 at the first adjusting hole 401 and the second adjusting hole 402, the top surface of the first double Z-shaped steel member 4 and one side steel limb of the first angle steel 5 are locked and positioned through high-strength bolts C11, the other side steel limb of the first angle steel 5 is provided with a third adjusting hole 501 and a fourth adjusting hole 502, the third adjusting hole 501 and the fourth adjusting hole 502 are holes perpendicular to the external wall panel 1, and the first angle steel 5 is connected with the lower flange of the steel beam of the main frame through high-strength bolts A9 at the third adjusting hole 501 and the fourth adjusting hole 502; the second connecting node includes a resettable anti-sliding concave-convex steel plate 8, a second double Z-shaped steel member 7 and a second angle steel 6, the resettable anti-sliding concave-convex steel plate 8 is welded to the upper flange surface of the steel beam of the main frame, the middle part of the second double Z-shaped steel member 7 is an obtuse isosceles trapezoidal section, the two steel limbs of the second double Z-shaped steel member 7 are respectively provided with a fifth adjusting hole 701 and a sixth adjusting hole 702, the fifth adjusting hole 701 and the sixth adjusting hole 702 are horizontal holes, the second double Z-shaped steel member 7 is connected with the second inner thread sleeve 102 of the external wall panel 1 through high-strength bolts E13 at the fifth adjusting hole 701 and the sixth adjusting hole 702, the inner side surface of the middle part of the second double Z-shaped steel member 7 is a concave-convex surface, and the concave-convex surface of the resettable anti-sliding concave-convex steel plate 8 is engaged and butt-jointed according to the mortise and tenon principle, one side steel limb of the second angle steel 6 is attached to the outer side surface of the second double Z-shaped steel member 7, the other side steel limb is provided with a seventh adjusting hole 602 and an eighth adjusting hole 603, the seventh adjusting hole 602 and the eighth adjusting hole 603 are holes perpendicular to the external wall panel 1, and the second angle steel 6 is connected with the upper flange of the steel beam of the main frame through high-strength bolts B10 at the seventh adjusting hole 602 and the eighth adjusting hole 603.

[0034] The preferred scheme adopted in the embodiment is as follows: the number of the first inner thread sleeve 101 on the external hanging wallboard is two, which are matched with the first adjusting hole 401 and the second adjusting hole 402 respectively; the number of the second inner thread sleeve 102 on the external hanging wallboard is two, which are matched with the fifth adjusting hole 701 and the sixth adjusting hole 702 respectively; the opening side of the first double Z-shaped steel member 4 and the second double Z-shaped steel member 7 is chamfered; the first double Z-shaped steel member 4 and the second double Z-shaped steel member 7 satisfy the energy consumption in the horizontal direction of the external hanging wallboard; the lower side of the second double Z-shaped steel member 7 and the upper flange of the main body frame steel beam leave a spacing for satisfying the installation error and energy consumption in the vertical direction of the external hanging wallboard; the top surface size d1 of the second double Z-shaped steel member 7, the limb width d2 of the second angle steel 6, and the width d3 of the concave-convex steel plate satisfy d1≥d2 and d1≥d3, so as to ensure the installation of the second double Z-shaped steel member 7; the total height of the section of the second double Z-shaped steel member 7 is H, the thickness of the middle part of the second double Z-shaped steel member 7 is t, and the resettable anti-sliding concave-convex steel plate 8 is welded to the upper flange surface of the main body frame steel beam before the installation of the external hanging wallboard, and the inner side of the resettable anti-sliding concave-convex steel plate 8 is d≤H-t away from the edge of the upper flange of the main body frame steel beam; in the embodiment, the inner side of the resettable anti-sliding concave-convex steel plate 8 is arranged with a convex hemisphere, as shown in Figure 7 and Figure 8 the concave-convex surface of the inner side of the second double Z-shaped steel member 7 is matched with the resettable anti-sliding concave-convex steel plate 8 and arranged with a hemispherical groove, the hemispherical groove and the convex hemisphere have the same distribution spacing and matching degree, and the two are engaged and connected through the mortise and tenon principle (another matching is also possible); the stiffening ribs are installed between the two steel limbs of the first angle steel 5 and the two steel limbs of the second angle steel 6; the adjusting holes on the first angle steel 5, the second angle steel 6, the first double Z-shaped steel member 4 and the second double Z-shaped steel member 7 are all strip-shaped holes suitable for adjusting high-strength bolt members; the first adjusting hole 401 and the second adjusting hole 402 of the two steel limbs of the first double Z-shaped steel member 4 satisfy the installation error and energy consumption in the vertical direction of the external hanging wallboard; the fifth adjusting hole 701 and the sixth adjusting hole 702 of the two steel limbs of the second double Z-shaped steel member 7 satisfy the installation error and energy consumption in the horizontal direction of the external hanging wallboard; the third adjusting hole 501 and the fourth adjusting hole 502 of the first angle steel 5 and the seventh adjusting hole 602 and the eighth adjusting hole 603 of the second angle steel 6 satisfy the installation error and energy consumption in the direction outside the external hanging wallboard.

[0035] The application discloses a construction process of a fabricated external wall panel connecting node structure based on double Z-shaped steel-mortise-friction multiple energy dissipation, which is characterized in that the external wall panel 1 is fixed on the upper and lower adjacent and parallel steel beams in the main frame, the upper and lower flanges of the steel beams are connected to the external wall panel in the same way, the upper flange surface is connected to the upper external wall panel through the second connecting node, and the lower flange surface is connected to the lower external wall panel through the first connecting node, the upper and lower adjacent steel beams are respectively the upper steel beam 2 and the lower steel beam 3, namely, the first connecting node of the external wall panel 1 is connected to the lower flange surface of the upper steel beam, and the second connecting node of the external wall panel 1 is connected to the upper flange surface of the lower steel beam, and the construction process comprises the following steps.

[0036] Step one, welding the resettable anti-sliding concave-convex steel plate 8 of the second connecting node to the upper flange surface of the lower steel beam 3 of the main frame at the designed position, and the concave-convex surface is inward;

[0037] Step two, aligning the first bolt hole 503 of the first angle steel 5 with the second bolt hole 403 of the first double Z-shaped steel member 4, and locking and connecting through the high-strength bolt C11;

[0038] Step three, aligning the first adjusting hole 401 and the second adjusting hole 402 of the two sides of the first double Z-shaped steel member 4 with the first inner thread sleeve 101 of the external wall panel 1, and pre-tightening and connecting through the high-strength bolt D12;

[0039] Step four, hoisting the connected external wall panel 1 to the installation position on one side of the lower steel beam 3 of the main frame, aligning the concave-convex surface of the second double Z-shaped steel member 7 with the concave-convex surface of the steel plate 8, aligning the fifth adjusting hole 701 and the sixth adjusting hole 702 of the steel member 7 with the second inner thread sleeve 102 of the external wall panel 1, and pre-tightening and connecting through the high-strength bolt E13;

[0040] Step five, adjusting the height of the external wall panel 1, namely, adjusting the height of the second double Z-shaped steel member 7 of the second connecting node, and adjusting the locking state of the high-strength bolt D12 in the step three, when the distance between the lower side of the second double Z-shaped steel member 7 and the upper flange of the lower steel beam 3 of the main frame meets the requirement, locking the high-strength bolt D12, namely, completing the positioning of the height of the external wall panel;

[0041] Step six, adjusting the distance between the external wall panel and the steel beam of the main frame, adjusting the locking state of the high-strength bolt E13 in the step four, namely, adjusting the horizontal position of the second double Z-shaped steel member 7 in the wall plate surface, when the convex hemispherical part of the second double Z-shaped steel member 7 of the second connecting node is engaged and matched with the hemispherical groove of the resettable anti-sliding concave-convex steel plate 8, locking and connecting the third adjusting hole 501 and the fourth adjusting hole 502 of the first angle steel 5 and the upper steel beam 2 of the main frame through the high-strength bolt A9, namely, completing the load bearing of the first connecting node of the external wall panel; and locking and connecting the high-strength bolt E13 in the step four;

[0042] Step seven, the steel limb of the smooth side of the second angle steel 6 of the second connecting node is tightly attached to the top surface of the second double Z-shaped steel member 7, and the seventh adjusting hole 602 and the eighth adjusting hole 603 of the other side steel limb are locked and connected through high-strength bolts B10, that is, the installation of the second connecting node of the outer hanging wallboard is completed; that is, the connecting construction of the double Z-shaped steel-mortise-friction multiple energy dissipation assembly type outer hanging wallboard connecting node system of the outer hanging wallboard 1 is completed.

[0043] The scope of protection of the present application is not limited to the above specific embodiments, and the present application can have various modifications and alterations for those skilled in the art, and any modification, improvement and equivalent replacement within the concept and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fabricated external wall panel connecting joint structure based on double Z-shaped steel-mortise-friction multiple energy dissipation, characterized in that: The application relates to a connecting node for connecting an external wall panel (1) and a main frame, wherein the main frame comprises a steel beam; the first connecting node comprises a first double-Z-shaped steel member (4) and a first angle steel (5), the middle part of the first double-Z-shaped steel member (4) is in the shape of an obtuse isosceles trapezoid, first adjusting holes (401) and second adjusting holes (402) are respectively formed in the two steel limbs of the first double-Z-shaped steel member (4), the first adjusting holes (401) and the second adjusting holes (402) are vertical holes, the first double-Z-shaped steel member (4) is connected with a first inner thread sleeve (101) of the external wall panel (1) through high-strength bolts D (12) at the first adjusting holes (401) and the second adjusting holes (402), the top surface of the first double-Z-shaped steel member (4) and one side steel limb of the first angle steel (5) are locked and positioned through high-strength bolts C (11), the other side steel limb of the first angle steel (5) is provided with third adjusting holes (501) and fourth adjusting holes (502), the third adjusting holes (501) and the fourth adjusting holes (502) are holes perpendicular to the external wall panel (1), and the first angle steel (5) is connected with the lower flange of the steel beam of the main frame through high-strength bolts A (9) at the third adjusting holes (501) and the fourth adjusting holes (502); the first angle steel (5) is provided with first bolt holes (503); and the first double-Z-shaped steel member (4) is provided with second bolt holes (403). The second connecting node comprises a resettable anti-sliding concave-convex steel plate (8), a second double-Z-shaped steel member (7) and a second angle steel (6), the resettable anti-sliding concave-convex steel plate (8) is welded to the upper flange surface of the steel beam of the main frame, the middle part of the second double-Z-shaped steel member (7) is in the shape of an obtuse isosceles trapezoid, fifth adjusting holes (701) and sixth adjusting holes (702) are respectively formed in the two steel limbs of the second double-Z-shaped steel member (7), the fifth adjusting holes (701) and the sixth adjusting holes (702) are horizontal holes, the second double-Z-shaped steel member (7) is connected with a second inner thread sleeve (102) of the external wall panel (1) through high-strength bolts E (13) at the fifth adjusting holes (701) and the sixth adjusting holes (702), the inner side surface of the middle part of the second double-Z-shaped steel member (7) is a concave-convex surface, and the concave-convex surface is engaged and connected with one side of the resettable anti-sliding concave-convex steel plate (8) according to the mortise and tenon principle, one side steel limb of the second angle steel (6) is attached to the outer side surface of the second double-Z-shaped steel member (7), the other side steel limb is provided with seventh adjusting holes (602) and eighth adjusting holes (603), the seventh adjusting holes (602) and the eighth adjusting holes (603) are holes perpendicular to the external wall panel (1), and the second angle steel (6) is connected with the upper flange of the steel beam of the main frame through high-strength bolts B (10) at the seventh adjusting holes (602) and the eighth adjusting holes (603); the second double-Z-shaped steel member (7) is provided with a convex hemispherical part; and the resettable anti-sliding concave-convex steel plate (8) is provided with a hemispherical groove.

2. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The first inner wire sleeve (101) on the outer hanging wallboard is two in number and is matched with the first adjusting hole (401) and the second adjusting hole (402) respectively; the second inner wire sleeve (102) on the outer hanging wallboard is two in number and is matched with the fifth adjusting hole (701) and the sixth adjusting hole (702) respectively.

3. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The first double-Z-shaped steel member (4) and the second double-Z-shaped steel member (7) are chamfered at the turning angles of the opening sides.

4. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The first double-Z-shaped steel member (4) and the second double-Z-shaped steel member (7) satisfy the energy consumption in the horizontal direction of the outer hanging wallboard plane; the lower side of the second double-Z-shaped steel member (7) and the upper flange of the main body frame steel beam leave a spacing for satisfying the installation error and energy consumption in the vertical direction of the outer hanging wallboard plane; the top surface size d1 of the second double-Z-shaped steel member (7), the limb width d2 of the second angle steel (6), and the width d3 of the reset anti-sliding concave-convex surface steel plate (8) satisfy d1≥d2 and d1≥d3, so as to ensure the installation of the second double-Z-shaped steel member (7).

5. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The total height of the second double-Z-shaped steel member (7) is H, the thickness of the middle part of the second double-Z-shaped steel member (7) is t, the reset anti-sliding concave-convex surface steel plate (8) is welded to the upper flange surface of the main body frame steel beam before the installation of the outer hanging wallboard, and the inner side of the reset anti-sliding concave-convex surface steel plate (8) is spaced from the edge of the upper flange of the main body frame steel beam by d≤H-t.

6. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The inner side of the reset anti-sliding concave-convex surface steel plate (8) is arranged with a hemispherical groove or a convex hemispherical body, the concave-convex surface of the inner side of the second double-Z-shaped steel member (7) is arranged with a convex hemispherical body or a hemispherical groove matched with the reset anti-sliding concave-convex surface steel plate (8), the hemispherical groove and the convex hemispherical body have the same distribution spacing and matching degree, and the two are engaged and connected through the mortise and tenon principle.

7. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: Stiffening ribs are arranged between the two steel limbs of the first angle steel (5) and the two steel limbs of the second angle steel (6).

8. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 1, characterized in that: The adjusting holes on the first angle steel (5), the second angle steel (6), the first double-Z-shaped steel member (4), and the second double-Z-shaped steel member (7) are all strip-shaped holes suitable for adjusting high-strength bolt members.

9. The dual Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to claim 8, characterized in that: The first adjusting hole (401) and the second adjusting hole (402) of the two steel limbs of the first double-Z-shaped steel member (4) satisfy the installation error and energy consumption in the vertical direction of the outer hanging wallboard plane; the fifth adjusting hole (701) and the sixth adjusting hole (702) of the two steel limbs of the second double-Z-shaped steel member (7) satisfy the installation error and energy consumption in the horizontal direction of the outer hanging wallboard plane; the third adjusting hole (501) and the fourth adjusting hole (502) of the first angle steel (5) and the seventh adjusting hole (602) and the eighth adjusting hole (603) of the second angle steel (6) satisfy the installation error and energy consumption in the direction outside the outer hanging wallboard plane.

10. The construction process of a double Z-shaped steel-mortise-friction multiple energy dissipation based assembled external wall panel connecting joint structure according to any one of claims 1-9, characterized in that: The outer hanging wall plate (1) is fixed on the steel beams which are adjacent and parallel in the main frame, the upper flange and the lower flange of the steel beam are connected with the outer hanging wall plate in the same way, the upper flange is connected with the upper outer hanging wall plate through the second connecting node, and the lower flange is connected with the lower outer hanging wall plate through the first connecting node, the adjacent steel beams are an upper steel beam and a lower steel beam, namely the first connecting node of the outer hanging wall plate (1) is connected to the lower flange of the upper steel beam, and the second connecting node of the outer hanging wall plate (1) is connected to the upper flange of the lower steel beam, and the method comprises the following steps: Step one, weld the resettable anti-sliding concave-convex steel plate (8) of the second connecting node at the designed position of the upper flange of the steel beam of the main frame, and the concave-convex surface faces inwards; Step two, align the first bolt hole (503) of the first angle steel (5) with the second bolt hole (403) of the first double-Z steel member (4), and lock and connect through the high-strength bolt C (11); Step three, align the first adjusting hole (401) and the second adjusting hole (402) of the two steel limbs of the first double-Z steel member (4) with the first internal thread sleeve (101) of the outer hanging wall plate (1), and pre-tighten and connect through the high-strength bolt D (12); Step four, hoist the connected outer hanging wall plate (1) to the mounting position on one side of the steel beam of the main frame, align the concave-convex surface of the second double-Z steel member (7) with the concave-convex surface of the resettable anti-sliding concave-convex steel plate (8), align the fifth adjusting hole (701) and the sixth adjusting hole (702) of the steel member (7) with the second internal thread sleeve (102) of the outer hanging wall plate (1), and pre-tighten and connect through the high-strength bolt E (13); Step five, adjust the height of the outer hanging wall plate (1), namely adjust the height of the second double-Z steel member (7) of the second connecting node, and adjust the locking state of the high-strength bolt D (12) in step three at the same time, when the distance between the lower side of the second double-Z steel member (7) and the upper flange of the steel beam of the main frame meets the requirement, lock the high-strength bolt D (12), namely complete the positioning of the height of the outer hanging wall plate; Step six, adjust the distance between the outer hanging wall plate and the steel beam of the main frame, adjust the locking state of the high-strength bolt E (13) in step four at the same time, namely adjust the horizontal position of the second double-Z steel member (7) in the wall plate, when the convex hemispherical part of the second double-Z steel member (7) of the second connecting node is engaged and matched with the hemispherical groove of the resettable anti-sliding concave-convex steel plate (8), lock the third adjusting hole (501) and the fourth adjusting hole (502) of the first angle steel (5) and the steel beam of the main frame through the high-strength bolt A (9), namely complete the load bearing of the first connecting node of the outer hanging wall plate; and lock the high-strength bolt E (13) in step four at the same time. Step seven, the second angle steel (6) of the second connecting node is connected with the top surface of the second double Z-shaped steel member (7) through the seventh adjusting hole (602) and the eighth adjusting hole (603) of the other side steel limb and the high-strength bolt B (10), that is, the installation of the second connecting node of the outer hanging wallboard is completed, that is, the connection construction of the double Z-shaped steel-mortise-friction multiple energy dissipation assembly type outer hanging wallboard connecting node system of the outer hanging wallboard (1) is completed.

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