WO2018018913A1

WO2018018913A1 - Flexible hanging type module building structure

Info

Publication number: WO2018018913A1
Application number: PCT/CN2017/078698
Authority: WO
Inventors: 吴刚; 叶智航; 王春林
Original assignee: 东南大学
Priority date: 2016-07-26
Filing date: 2017-03-30
Publication date: 2018-02-01
Also published as: EP3379002A4; CN106013452B; EP3379002B1; CN106013452A; EP3379002A1

Abstract

A flexible hanging type module building structure comprises a vertically-disposed core cylinder structure (1). A conversion layer (2) is disposed at the upper end of the core cylinder structure (1). Multiple modules (3) having certain spaces reserved therebetween are hung below the conversion layer (2). Modules (3) adjacent in the vertical direction are connected by means of a set of hanging rod members (4). The upper end of each hanging rod member (4) is movably connected to a ceiling beam (10) of the corresponding upper module (3), and the lower end of each hanging rod member (4) is movably connected to a ceiling beam (10) of the corresponding lower module (3). The hanging rod member (4) disposed on the uppermost module (3) is movably connected to the conversion layer (2). Dampers (5) are disposed between floors of the modules (3) and the core cylinder structure (1). The structure has the advantages of being capable of avoiding collisions among the modules and improving the vibration reduction efficiency.

Description

Flexible hanging module building structure

Technical field

The invention belongs to the technical field of civil engineering, in particular to a flexible suspended module building structure.

Background technique

The module building is a prefabricated three-dimensional box unit. One unit is usually 1-3 rooms. The module unit is generally made of steel structure. The module production and equipment installation account for 90% of the total construction work, all on the factory assembly line. Completed, mechanized and industrialized, and reduced pollution emissions. The manufacturer integrates the exterior wall, decoration, furniture, equipment, etc. into the box unit (module), and transports it to the site for hoisting and splicing. Not only the structural part is convenient to construct, but also the post-renovation work is eliminated.

Compared with other prefabricated assembly structures, the advantages of modular building mainly include the following aspects: due to the high integration, the subsequent decoration, equipment pipeline installation and other processes are eliminated, further shortening the construction time and saving the manpower on site; each module has its own structural system. Whether it is transportation, hoisting or in place, no additional support is needed, and it can be conveniently placed in place; the factory's assembly line decoration and installation equipment can further improve the indoor quality and meet the market requirements of commercial housing. .

Based on the advantages of the above aspects, the modular building is applicable to, but not limited to, the following occasions: projects with tight schedules, such as the need to live in new school quarters on schedule; projects that are lacking in manpower, such as scale construction in remote areas; For example, winter construction; works with special requirements for decoration quality, such as star-rated hotels.

However, the components inside the module are limited by space requirements, convenient connection requirements and self-weight restrictions. The components are limited in size and cannot achieve high horizontal bearing capacity. Therefore, in current practical engineering applications, multi-high-rise module buildings need to be added with horizontal force resistance structure. To help the module building load, it can be a concrete core tube or other form. The module transmits the horizontal load received to the core barrel through an effective connection, and the module itself is only subjected to vertical loads and a very small amount of horizontal load. Therefore, in the case of high-rise modular construction, the structural form of the module + concrete core tube is generally adopted, and the horizontal seismic force system only has a core tube and a line of defense, which is a relatively unreasonable structural form. The module delivers excessive horizontal loads to the core barrel, often resulting in large material usage. On the other hand, in the high-rise module construction case, the self-weight of the module is directly transmitted downward, and the module at the bottom is subjected to excessive vertical load, which increases the size of the internal components of the module, thereby increasing the structural weight and affecting the use function.

Summary of the invention

OBJECT OF THE INVENTION: To overcome the deficiencies in the prior art, the present invention provides a flexible suspension module building structure.

Technical Solution: In order to solve the above technical problem, a flexible suspension module building structure of the present invention comprises a vertically arranged concrete core tube structure, and a conversion layer is arranged at an upper end of the core tube structure, and the conversion layer is composed of a rigid truss, and The concrete core tube is effectively connected and cantilevered outside the core tube structure, and a plurality of modules with a certain space reserved between each other are suspended below the conversion layer, and the vertically adjacent modules are connected by a set of suspension rods, each of which is connected The upper end of the suspension rod is connected to the ceiling beam of the upper module, and the lower end is connected to the ceiling beam of the lower module; the module at the top is connected with the suspension layer and the conversion layer, and the floor of each module A damper is provided between the core barrel structure and the core tube structure. The articulated connection is a "hinged" "flexible connection" or "a bending-type connection within the suspension member.

Wherein, a limit buffer device is arranged between the vertically adjacent modules, and the limit buffer device is used to prevent vertical collision of the vertically adjacent modules when the horizontal relative displacement is large.

Wherein, the limiting buffer device comprises two interconnecting rods, wherein the free ends of the rods are respectively connected to the vertically adjacent modules, wherein one of the rods is connected at the bottom corner of the upper module, and the other rod is connected below. The module is vertically adjacent to the top corner of the module, and a wire rope is disposed between the two bars. When the position between the bars is in an initial state, the wire rope is in a relaxed state.

Wherein, each module of the ceiling beam is provided with an extension section outside the beam-column joint, the end of the suspension rod is connected with a universal joint, the universal joint is connected with the web of the T-shaped connecting steel plate, and the flange of the T-shaped connecting steel plate is The epitaxial section of the module ceiling beam is welded.

Wherein, a slidable prefabricated slab is arranged between each module and the core tube structure, one end of the prefabricated slab is connected with the beam column node at the module floor, and the other end is placed on the floor slab of the core tube structure.

Wherein, the pre-cast slab is pre-buried with channel steel, the channel steel is connected with the connecting steel plate bolt, the connecting steel plate is welded with the beam-column joint at the module floor, and the other end of the prefabricated slab is placed on the groove of the core tube structure floor, and the contact is placed Both sides of the surface are provided with a pre-embedded contact steel plate; a pre-buried anti-collision steel plate is arranged on the vertical end surface of the groove, and the contact steel plate and the anti-collision steel plate are welded on the pre-embedded anchor rib of the prefabricated floor slab.

Wherein, a module interlayer damper is arranged between the vertically adjacent modules, and the two ends of the module interlayer damper are respectively connected to the floor beam column node of the upper module and the ceiling beam column node of the lower module. The purpose of setting the interlayer damper is that under the rare earthquake, when other dampers are destroyed due to the over-travel, after exiting the work, the inter-layer damper of the module is still within the working stroke due to its relative motion, which is the structure. Continue to provide the necessary energy consuming pathways.

Wherein, on the ground provided with the core layer structure, a module group composed of a plurality of modules stacked from bottom to top is provided, and a plurality of stacked modules and a module located on the ground foundation and the ground foundation are connected to each other, and stacked. The module has no more than 4 layers.

Advantageous Effects: A flexible suspension module building structure of the present invention has the following beneficial effects:

1. Suspension damping technology is adopted to significantly reduce the horizontal load input from the module to the core tube structure, saving the amount of material used in the core tube structure.

2. The module building allows the displacement between the substructures to avoid the damage of the non-structural members, and relaxes the limit of the displacement between the substructures, thereby improving the efficiency of energy dissipation.

3. Adopting the universal joint type flexible suspension scheme, the horizontal stiffness is only provided by the damper and the suspension member axial force. When the horizontal displacement is carried out, the suspension member is only subjected to the axial force and maintains the elasticity; compared with other flexible suspension schemes, the scheme is In vertical earthquakes, the vertical direction has a certain degree of rigidity, so as not to excessively amplify the vertical response.

4. Combine the innovative limit buffer device to reasonably control the relative movement between modules to avoid collision.

DRAWINGS

1 is a schematic view showing the overall façade layout of a flexible suspension module building structure of the present invention;

2 is a schematic structural view of a module layer of the structure shown in FIG. 1;

3 is a schematic view of a limit buffer device in the inter-layer structure shown in FIG. 2;

Figure 4 is a schematic view showing the connection structure of the suspension rods of the structure shown in Figure 1;

Figure 5 is a schematic view showing a preferred embodiment of the slidable prefabricated floor slab and the inter-layer damper of the inter-layer structure shown in Figure 2;

Figure 6 is a schematic view showing the arrangement of the slidable prefabricated floor slab of the preferred embodiment shown in Figure 5;

7 is a schematic diagram of a partial module stacking type of the structure shown in FIG. 1;

Figure 8 is a schematic view of a misplaced stacked in-position embodiment of the structure shown in Figure 1;

Figure 9 is a schematic illustration of a cantilevered seating embodiment of the structure of Figure 1.

In the picture: 1-core tube structure, 2-conversion layer, 3-module, 4-suspension rod, 5-damper, 6-diagonal support, 7-position cushioning device, 8-bar, 9 - wire rope, 10-ceiling beam, 11-module column, 12- stiffener, 13-universal joint, 14-T joint steel plate, 15-precast slab, 16-module interlayer damper, 17-core tube floor, 18-high strength bolt, 19-joint steel plate, 20-pre-buried channel steel, 21-pre-embedded contact steel plate, 22-pre-buried anti-collision steel plate, 23-pre-embedded anchor rib, 24-module set, 25-upliftable Platform, 26-pre-embedded connectors.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

A flexible suspension module building structure as shown in FIGS. 1 to 3 includes a vertically arranged core tube structure 1 which is a key force system that bears all horizontal loads and vertical loads of the entire structure. The upper end of the core tube structure 1 is provided with a conversion layer 2, and a plurality of modules 3 reserved with a certain space between each other are suspended below the conversion layer 2, and the vertically adjacent modules 3 are connected by a set of suspension rods 4, each of which is connected The upper end of the suspension rod 4 is movably connected to the ceiling beam 5 of the upper module 3, and the lower end is movably connected to the ceiling beam 5 of the lower module 3, the ceiling beam 5 is the beam on the top surface of the module 3; the module 3 located at the top is set in The suspension bar 4 is movably connected to the conversion layer 2, and a damper 5 is disposed between the floor of each module 3 and the core tube structure 1. Each damper 5 plays a role when the module 3 and the core tube structure 1 move relative to each other. The damper 5 also has a certain elastic stiffness to provide the horizontal stiffness of the module 3 structure. A limit buffer device 7 is disposed between the vertically adjacent modules 3, and the limit buffer device 7 is used to prevent the vertical adjacent module 3 from colliding vertically when the horizontal relative displacement is large. Specifically, as shown in FIG. 3, the limit buffer device 7 comprises two interconnected rods 8, the free ends of which are respectively connected to the vertically adjacent modules 3, one of which is connected to the bottom corner of the upper module 3 and the other of which is connected The lower corner of the lower module 3 and the upper module 3 are vertically adjacent. A wire rope 9 is disposed between the two rod members 8, and when the position between the rod members 8 is in an initial state, the wire rope 9 is in a relaxed state, and the two rod members are an "A" type device composed of a wire rope 9 whose initial state is slack. This type A rod set acts as a lever to reduce the elongation of the wire rope proportionally and avoid premature breakage. The floor of each module 3 is connected to the core tube structure 1 through a damper 5, and the damper 5 plays a major energy-consuming role when the module 3 and the core tube structure 1 move relative to each other. The damper 5 has a certain elastic rigidity to provide The horizontal stiffness of the module 3 structure. Further, when only the wind load acts, since the damper 5 acts as a sliding load, the damper 5 does not slip, and the wind load can be directly transmitted to the core barrel structure 1. As shown in FIG. 4, the ceiling beam 10 of the module is provided with an extension section outside the beam-column node, and the ceiling beam is provided with a stiffener 12 at a corresponding position. The suspension rod 4 is generally a hollow circular steel tube, and the end is connected with a universal joint. The joint 13 and the universal joint 13 are connected to the web of the T-shaped connecting steel plate 14 by bolts, and the flange of the T-shaped connecting steel plate 14 is welded to the epitaxial section of the module ceiling beam 10, and the welding is performed as required. The epitaxial section of the ceiling beam of the module acts to allow the suspension rod 4 to oscillate within a certain range without causing a collision. A diagonal support member 6 is also provided in each module 3, and the diagonal support member 6 reinforces the structure of the module from the inside. As shown in FIG. 5, a slidable prefabricated floor slab 15 is disposed between each module 3 and the core tube structure 1 so that the two can move relative to each other while maintaining relative movement. The channel steel 20 is pre-embedded in the prefabricated floor panel 15. Before the pre-buried channel steel 20 and the connecting steel plate 19 have been connected by high-strength bolts 18, the steel plate 19 is connected with the beam-column joints at the module floor for on-site welding, and the other end of the prefabricated floor panel 15 is placed. On the groove of the core tube floor panel 17, both sides of the resting contact surface are provided with a pre-embedded contact steel plate 21, which can form a frictional sliding. A pre-buried anti-collision steel plate 22 is disposed on the vertical end surface of the groove, and the above embedded parts each have a pre-embedded anchor rib 23 welded thereto. A module interlayer damper 16 is further disposed between the vertically adjacent modules 3, and the two ends of the module interlayer damper 16 are respectively connected to the floor beam column node of the upper module 3 and the ceiling beam 5 column node of the lower module 3.

As shown in FIG. 6 , as another preferred embodiment, mainly for the purpose of adjusting the suspension mass ratio, a module group 24 stacked from the bottom up is provided on the ground provided with the core layer structure, and a plurality of stacked modules are stacked. The modules and the ground-based modules are interconnected with the ground foundation, and the stacked modules are no more than 4 layers.

To provide an exemplary embodiment, the following describes a method of installing three suspension segment modules in place:

Method one, the right stack is in place:

1. The installation of the underlying platform is in place. The purpose of this platform is to withstand the temporary vertical loads of the modules above it. If the bottom layer of the structure is designed with stacking modules, the underlying modules are directly installed.

2. After the module or platform on the lower layer is installed, install the temporary pad. The function of the pad is to reserve the vertical space, so that the module does not touch vertically in the final formed system; and after the pad is installed and leveled, Lift the module in this layer.

3. After the modules of each layer are in place, install the suspension rods and the limit buffer device to install the core tube structure. A damper between the module and other pipes.

4. Remove the temporary block from top to bottom and finally remove the bottom platform.

Method 2, the misplaced stacking is in place, as shown in Figure 7:

1. The installation of the liftable platform 25 is in place. The platform is equipped with a jacking device, which can smoothly ascend the whole and requires less travel. The distance between the jackable platform 25 and the suspension conversion layer is slightly greater than the height of the entire suspension segment minus the sum of the vertical spaces between the modules. That is to say, according to the scheme in which the modules are closely stacked in the vertical direction without spacers, a distance from the conversion layer is reserved as an operation space.

2. After the module or platform on the lower layer is installed, lift the module in the layer and connect the suspension rod. The two-layer modules are stacked vertically and form a certain misalignment in the horizontal direction. The distance of the misalignment is determined according to the standard that can accurately connect the suspension rods.

3. After the modules of each layer are in place, install the top suspension rods, and then use the jacking device of the bottom platform to smoothly lower the platform until the suspension module naturally hangs. Remove the platform.

4. Install the limit buffer device, install the damper between the core tube structure and the module, and connect other pipelines.

Method three, overhanging in place, as shown in Figure 8:

1. The corresponding position of the core tube structure should be provided with an embedded part 26, which can be effectively connected with the module, so that the module can be temporarily overhanged outside the core tube. The position of the top part of the embedded part is determined according to the standard that can accurately connect the suspension rod to the conversion layer, and the position of the embedded part is determined in order from top to bottom according to this standard.

2. Using the conversion layer lifting module, first lift the top layer module and connect with the embedded parts, and install the suspension rod to form a temporary fixing.

3. Repeat step "2" from top to bottom.

4. Disarm the temporary suspension of the top two suspension modules and the embedded parts, and let them form a mechanism, which is automatically seated under the action of gravity, that is, horizontally oscillated to the corresponding position. Install the limit buffer and damper of the top module after seating.

5. From top to bottom, gradually remove the temporary fixing of one layer of module, and let it be in place, install the limit buffer device and damper of the module above it.

6. Install the limit buffer and damper of the bottom module to connect other pipelines.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

The utility model relates to a flexible hanging module building structure, which comprises: a vertically arranged concrete core tube structure, a conversion layer is arranged at an upper end of the core tube structure, the conversion layer is composed of a rigid truss, and is effectively connected with the concrete core tube, and cantilevered In addition to the core tube structure, a plurality of modules that reserve a certain space between each other are suspended below the conversion layer, and the vertically adjacent modules are connected by a set of suspension rods, and the upper ends of the suspension rods are connected at the upper side. The ceiling beam of the module, the lower end is connected to the ceiling beam of the lower module; the module at the top is arranged, the suspension rods disposed thereon are connected with the conversion layer, and the damping between the floor of the module and the core tube structure is provided. Device.
The flexible suspension module building structure according to claim 1, wherein a limiting buffer device is disposed between the vertically adjacent modules, and the limiting buffer device is configured to prevent the vertically adjacent modules from being horizontally opposed. A vertical collision occurs when the displacement is large.
The flexible suspension module building structure according to claim 2, wherein the limiting buffer device comprises two interconnecting rod members, and the free ends of the rod members are respectively connected to the vertically adjacent modules, wherein One rod is connected to the bottom corner of the upper module, and the other rod is connected to the top corner of the lower module vertically adjacent to the upper module. A wire rope is arranged between the two rods, and the position between the rods is In the initial state, the wire rope is in a relaxed state.
A flexible suspension module building structure according to claim 1, wherein each of the module ceiling beams is provided with an extension section outside the beam-column joint, and the end of the suspension rod member is connected to a universal joint. The universal joint is connected to the web of the T-shaped connecting steel plate, and the flange of the T-shaped connecting steel plate is welded to the epitaxial section of the module ceiling beam.
The flexible suspension module building structure according to claim 1, wherein: slidable prefabricated floor slab is arranged between each module and the core cylinder structure, and the beam-column joint at one end of the prefabricated slab and the module floor Connected and the other end placed on the floor of the core tube structure.
A flexible suspension module building structure according to claim 5, wherein: the precast slab is pre-buried with channel steel, the channel steel is bolted to the connecting steel plate, and the steel plate is welded to the beam-column joint at the module floor. The other end of the prefabricated floor slab rests on the groove of the core tube structure floor, and the two sides of the contact surface are provided with pre-buried contact steel plates; the anti-collision steel plate is placed on the vertical end surface of the groove, and the steel plate is contacted The collision plate is welded to the pre-embedded anchor of the prefabricated floor.
The flexible suspension module building structure according to claim 1, wherein a module inter-layer damper is arranged between the vertically adjacent modules, and the two modules of the inter-layer damper are respectively connected to the upper module. The floor beam column node and the ceiling beam node of the module below.
The flexible suspension module building structure according to claim 1, wherein a module group composed of a plurality of modules stacked from bottom to top is provided on the ground provided with the core layer structure, and the stacking is performed. The modules and the ground-based modules are interconnected with the ground foundation, and the stacked modules are no more than 4 layers.