A connecting node, a corridor structure and a modular elevator for retrofitting

Abstract

The present invention discloses a connection node, a corridor structure and a modularly installed elevator. The connection node includes a first node plate, a second node plate, a third node plate, a fourth node plate, a fifth node plate, a channel steel beam and a tie rod. Among them, the first node plate or the fifth node plate is vertically and fixedly connected to the second node plate, the second node plate and the third node plate are connected in parallel by a pin shaft, and the third node plate can rotate relative to the second node plate along the pin shaft. One side of the end of the third node plate away from the second node plate is fixedly connected to the channel steel beam, and the other side is vertically and fixedly connected to the fourth node plate. The fourth node plate is connected to the tie rod by a pin shaft. This connection node is applied to the corridor structure, which can effectively transfer the lateral wind force and seismic force borne by the external building structure to the original building structure, and can adjust the height difference and distance between the external building structure and the original building structure within a certain range, and can release the additional internal force generated due to the settlement difference.

Description

Technical Field

[0001] The present invention relates to the technical field of the connection construction between buildings and external structures, and particularly relates to a connection node, a corridor structure and a modular elevator installation. Background Art

[0002] Multi-story buildings built earlier usually only have stairs. With the development of the aging population trend and the continuous progress of the old building renovation project, installing elevators for old buildings has become an important task during the renovation process and is also one of the important manifestations of improving the living conditions of residents.

[0003] Modular elevator installation prefabricates the elevator installation in advance in the factory by splitting it into multiple modules. The overall transportation and hoisting of the modules are convenient, which speeds up the on-site installation construction. The all-bolt connection reduces the risks brought by on-site open-flame operations and reduces the impact of construction on the normal life of residents. It is currently a relatively common processing and installation method for elevator installation.

[0004] Common modular elevator installations for old buildings usually consist of an elevator shaft and a corridor connected to the original building. The main structure of the elevator shaft is generally a four-column steel structure frame, which is connected to the original building through the corridor and enters the original building staircase or indoors. The corridor includes a walkway and side enclosures. The walkway is generally composed of steel beams, secondary beams and floor slabs on both sides. The lateral force borne by the shaft part needs to be transmitted to the original structure through the corridor, and part of the vertical load of the corridor needs to be transmitted to the original structure.

[0005] In the existing technology, the in-plane stiffness of the corridor walkway structure is weak, and it is difficult to effectively transmit the lateral load borne by the shaft to the original structure, resulting in large lateral deformations of the shaft structure under wind and seismic loads, affecting safety and the normal use of equipment. Moreover, the steel beams on both sides of the walkway are generally connected to the original structure by bolts and gusset plates, which have a certain ability to transmit bending moments and shear forces, but basically no rotational deformation ability. In fact, due to the settlement difference between the elevator shaft frame of the elevator installation and the original structure, the existing connection method cannot adapt to this differential settlement, affecting the safety of the connection node. On the other hand, this connection method also cannot adjust the horizontal distance between the elevator shaft frame of the elevator installation and the original building structure, which has great limitations during elevator installation. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems existing in the above-mentioned existing technology, and provide a connection node, a corridor structure and a modular elevator installation with this connection node. It has strong adaptability, is convenient for installation construction, saves time and effort, has a neat and beautiful appearance, is suitable for areas with narrow front building spaces, can effectively transmit the lateral wind force and seismic force borne by the external structure frame to the original structure of the building, and can adjust the height difference and distance between the frame and the original building within a certain range, and can release the additional internal force generated due to the settlement difference.

[0007] In a first aspect, the present invention provides a connection node, including a first node plate, a second node plate, a third node plate, a fourth node plate, a fifth node plate, a channel steel beam and a tie rod. Among them, the first node plate or the fifth node plate is vertically and fixedly connected to the second node plate, the second node plate and the third node plate are connected in parallel by a pin shaft, and the third node plate can rotate relative to the second node plate along the pin shaft. One side of the end of the third node plate away from the second node plate is fixedly connected to the channel steel beam, and the other side is vertically and fixedly connected to the fourth node plate. The fourth node plate is connected to the tie rod by a pin shaft.

[0008] Optionally or preferably, in the above connection node, gaskets are provided between the third node plate and the fourth node plate, and on the reverse side of the connection surface of the channel steel beam with the third node plate, and the gaskets are parallel to the third node plate.

[0009] Optionally or preferably, in the above connection node, a gasket is also provided on the reverse side of the connection surface of the channel steel beam with the third node plate.

[0010] Optionally or preferably, in the above connection node, two short channel steels are also fixedly provided on the first node plate. The tip of the limb of one short channel steel abuts against the second node plate, and there is a gap between the other short channel steel and the third node plate, which does not affect the movement of the third node plate.

[0011] Optionally or preferably, in the above connection node, the third node plate and the channel steel beam are both provided with oblong holes in the horizontal direction and are fixedly connected to the channel steel beam by bolts. By adjusting the relative positions of the third node plate and the channel steel beam, the horizontal distance between the channel steel beam and the first node plate can be adjusted.

[0012] Optionally or preferably, in the above connection node, the first node plate is used for fixedly connecting to an external building structure, and the fifth connection node is used for fixedly connecting to the original building structure.

[0013] Optionally or preferably, in the above connection node, the first node plate, the second node plate, the third node plate, and the fourth node plate are all steel plates with a thickness of 12 mm, and the fifth node plate is a steel plate with a thickness of 8 mm.

[0014] Optionally or preferably, in any of the above connection nodes, a sleeve is provided in the middle of the tie rod for adjusting the length of the tie rod.

[0015] In a second aspect, the present invention provides a corridor structure system for connecting an external building structure and an original building structure, which is characterized in that it includes any of the above connection nodes.

[0016] Optionally or preferably, the above corridor structure includes channel steel side beams on both sides and a walkway surface at the bottom. The two ends of the channel steel side beams are respectively connected to the external building structure and the original building structure through the connection nodes.

[0017] In a third aspect, the present invention provides a modularly installed elevator, including the corridor structure described in any one of the above.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the structure of the connection node, the second node plate and the third node plate are connected by a pin shaft. The third node plate can rotate a certain angle in the vertical direction to adapt to the height difference between the external building structure (such as the elevator shaft frame) and the original building structure (such as a residential building), and release the additional bending moment generated due to the settlement difference. In addition, the second node plate and two short channel steels act together to resist the horizontal load. A long circular hole is opened on the third node plate, and the horizontal distance between the external building structure and the original building structure can be adjusted according to the size of the occupied space. The tie rod can rotate horizontally relative to the fourth node plate, and a sleeve is arranged in the middle of the tie rod to adjust the length of the tie rod to adapt to the horizontal distance between the external building structure and the original building structure and the width of the corridor. This connection node can not only adjust the height difference and distance between the external building structure and the original building structure within a certain range, but also release the additional internal force generated due to the settlement difference.

[0020] The structure of the connection node of the present invention has strong adaptability, convenient installation and construction, saving time and effort. On the one hand, it saves construction time, and on the other hand, it can also solve the problems brought by foundation settlement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic structural diagram of the connection node connected to the external building structure;

[0022] Figure 2 Schematic structural diagram of the connection node connected to the original building structure;

[0023] Figure 3 Schematic diagram of the corridor structure between the steel structure frame column of the installed elevator and the original building structure;

[0024] Figure 4 Axonometric view of the overall structure diagram of the installed elevator using a four-column steel structure frame;

[0025] Figure 5 Elevation view of the overall structure diagram of the installed elevator using a four-column steel structure frame;

[0026] Figure 6 Plan view of the overall structure diagram of the installed elevator using a four-column steel structure frame.

[0027] In the figure:

[0028] a1 - The first gusset plate, a2 - The second gusset plate, a3 - The third gusset plate, a4 - The fourth gusset plate, a5 - The fifth gusset plate, b - The channel steel beam, c - The pin shaft, d - The bolt, e - The anchor bolt, f - The gasket, g - The short channel steel, h - The tie rod. Detailed implementation manners

[0029] The technical solutions of the present invention will be explained and described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it.

[0030] Please refer to Figure 1 , in combination with Figure 2 , a connection node is used to connect the external building structure, namely the steel structure frame of the four-column modular installed elevator, and the original building structure, namely the residential building. The connection node includes a first gusset plate, a second gusset plate, a third gusset plate, a fourth gusset plate, a fifth gusset plate, a channel steel beam and a tie rod.

[0031] Wherein, at one end of the connection of the external building structure, one side of the first gusset plate is fixedly connected to the external building structure, such as the steel structure column, by bolts, and the other side is fixedly welded perpendicular to the second gusset plate.

[0032] The second gusset plate and the third gusset plate are connected in parallel by an M30 pin shaft. By rotating a certain angle, it can adapt to the height difference between the elevator of the steel structure column and the floor rest platform of the original building structure (residential building), and release the additional bending moment generated due to the settlement difference.

[0033] To enhance the resistance of the second gusset plate to the horizontal force in the X direction, two short channel steels are also used to be perpendicularly welded to the first gusset plate, and the tips of the two short channel steels abut against the second gusset plate and the third gusset plate.

[0034] At one end of the third gusset plate away from the second gusset plate, one side is fixedly connected to the channel steel beam by M12 high-strength bolts, and the other side is fixedly welded perpendicular to the fourth gusset plate. The fourth gusset plate is connected to the tie rod by a pin shaft. Both the third gusset plate and the channel steel beam are provided with slotted holes, and are connected by M12 high-strength bolts. According to the size of the front space of the building used, the horizontal position of the channel steel beam relative to the third gusset plate can be adjusted, and then the horizontal distance between the four-column steel structure frame and the original building can be adjusted.

[0035] Gaskets are provided between the third gusset plate and the fourth gusset plate, and on the opposite side of the connection surface of the channel steel beam with the third gusset plate. The gaskets are parallel to the third gusset plate, and the gaskets can improve the connection strength.

[0036] Between the fourth gusset plate and the tie rod, an M30 pin shaft is used for connection, enabling the tie rod to rotate horizontally. The end of the tie rod is provided with a ring for easy insertion of the pin shaft. A casing is arranged in the middle of the tie rod to adjust the length of the tie rod to adapt to the horizontal distance between the four-column steel structure frame and the original building and the width of the connecting corridor.

[0037] The function of the fifth gusset plate is similar to that of the first gusset plate and is used for fixed connection with the concrete beam of the original building structure through M16 anchor bolts. Other structures are the same as those of the node at one end of the steel structure frame.

[0038] The first gusset plate, the second gusset plate, the third gusset plate, the fourth gusset plate, and the fifth gusset plate are thick steel plates, and the thickness range can be between 6 - 20 mm. The preferred solution is that the thicknesses of the first gusset plate, the second gusset plate, the third gusset plate, and the fourth gusset plate are 12 mm, and the thickness of the fifth gusset plate is 8 mm. The channel steel beam is preferably [14b channel steel or [8 channel steel. The gasket is preferably a 10 mm thick steel plate.

[0039] Please refer to Figures 3 - 6. This connection node is applied to the connecting corridor structure, which is applied between the elevator shaft to be added and the original building structure. It is suitable for installing an elevator in the four-column steel structure shaft frame, and a connecting corridor walkway is arranged on the side of the shaft frame close to the building.

[0040] This connecting corridor structure includes channel steel side beams on both sides and a walkway surface at the bottom. The two ends of the channel steel side beams are respectively connected to the external building structure and the original building structure through the connection nodes.

[0041] To strengthen the stiffness within the walkway plane, the following measures can be taken:

[0042] 1) Cross braces are arranged between the two channel steel side beams, and tie rods with adjustable lengths or angle steels can be used.

[0043] 2) A cast-in-place concrete floor slab can be used, and the floor slab is connected to the channel steel side beam by stud welding.

[0044] 3) A precast concrete floor slab is used, and the floor slab is connected to the channel steel side beam by welding embedded parts or connecting with reserved bolts.

[0045] The connection nodes at both ends of the channel steel side beam have the ability to resist shear, tension, and vertical shear within the plane and can rotate vertically. The above connecting corridor structure can effectively transfer the lateral wind force and seismic force borne by the shaft frame to the original building structure, and can adjust the height difference and distance between the shaft frame and the original building structure within a certain range, and can release the additional internal force generated due to settlement difference.

[0046] In this article, specific examples are used to elaborate on the inventive concept in detail. The description of the above embodiments is only used to help understand the core idea of the present invention. It should be noted that for those of ordinary skill in the art, any obvious modifications, equivalent substitutions or other improvements made without departing from the inventive concept should be included within the protection scope of the present invention.

Claims

1. A connection node, characterized in that, It includes a first gusset plate, a second gusset plate, a third gusset plate, a fourth gusset plate, a fifth gusset plate, a channel steel beam and a tie rod. Among them, the first gusset plate and the fifth gusset plate are vertically and fixedly connected to the second gusset plate. The second gusset plate and the third gusset plate are connected in parallel by a pin shaft, and the third gusset plate can rotate relative to the second gusset plate along the pin shaft. One side of the end of the third gusset plate away from the second gusset plate is fixedly connected to the channel steel beam, and the other side is vertically and fixedly connected to the fourth gusset plate. The fourth gusset plate is connected to the tie rod by a pin shaft, and the tie rod can rotate horizontally relative to the fourth gusset plate; Both the third gusset plate and the channel steel beam are provided with oblong holes in the horizontal direction and are fixedly connected to the channel steel beam by bolts. The horizontal distance between the channel steel beam and the first gusset plate is adjusted by adjusting the relative positions of the third gusset plate and the channel steel beam; The first gusset plate is used for fixedly connecting to an external building structure, and the fifth gusset plate is used for fixedly connecting to the original building structure; A sleeve is arranged in the middle of the tie rod for adjusting the length of the tie rod; Two short channel steels are also fixedly arranged on the first gusset plate. The tip of the limb of one short channel steel abuts against the second gusset plate, and there is a gap between the other short channel steel and the third gusset plate, which does not affect the movement of the third gusset plate.

2. The connecting node according to claim 1, characterized in that, Gaskets are arranged between the third gusset plate and the fourth gusset plate, and on the reverse side of the connection surface of the channel steel beam with the third gusset plate. The gaskets are parallel to the third gusset plate.

3. The connecting node according to claim 1, wherein The first gusset plate, the second gusset plate, the third gusset plate and the fourth gusset plate are all steel plates with a thickness of 12 mm, and the fifth gusset plate is a steel plate with a thickness of 8 mm.

4. A corridor structure for connecting an external building structure and the original building structure, characterized in that, It includes the connection node according to any one of claims 1-3.

5. The corridor structure according to claim 4, characterized in that, It includes channel steel side beams on both sides and a walkway surface at the bottom. The two ends of the channel steel side beams are respectively connected to an external building structure and the original building structure through the connection node.

6. A modular retrofitted elevator, characterized in that, It includes the corridor structure according to claim 4.

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