Vertical lateral force resisting members and their applications, and buildings with such members

Abstract

The present invention relates to a vertical lateral force resisting member, its application, and a building with such a member. It includes an upper connecting member whose upper end is connected to the floor top frame beam; a lower connecting member whose lower end is connected to the floor bottom frame beam; and a horizontal rod which is horizontally placed. One end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod is hinged to the upper end of the lower connecting member. A building, in which the load-bearing structure has the above-mentioned vertical lateral force resisting member. The application of the vertical lateral force resisting member in a newly-built building. The application of the vertical lateral force resisting member in a renovated building. The advantages of the present invention are that the vertical lateral force resisting member can significantly enhance the lateral stiffness of a building, and at the same time make the internal forces under horizontal loads relatively evenly distributed in the overall structure, significantly improve the ductility of the structure under high-intensity earthquakes, and facilitate construction and reduce costs.

Description

Technical Field

[0001] The present invention relates to the technical field of building components, and particularly to a vertical lateral force resisting member and its application, as well as a building with such a member. Background Art

[0002] For high-rise buildings, the horizontal load is often the controlling factor for the design of the structural system and components. For buildings in areas with high seismic fortification intensities, the seismic load will play a decisive role. The selection of a reasonable lateral force resisting system can not only ensure that the structure meets the stiffness, strength, and ductility requirements under normal use and ultimate bearing capacity states, but also make better use of the material properties, speed up the construction process, and achieve good economic indicators.

[0003] Currently, the commonly used lateral force resisting structural forms mainly include: frame, concentrically braced frame, eccentrically braced frame, buckling-restrained braced frame, reinforced concrete shear wall, steel plate shear wall, and combinations of the above various forms, etc.

[0004] The frame structure has good spatial adaptability, but its stiffness is relatively small; the conventional shear wall and brace have large stiffness, but they are inconvenient to use and are greatly restricted in layout.

[0005] Under the action of medium and high-intensity earthquakes, with the existing technical level and economic requirements, the main damage to the building structure is inevitable. Since the conventional shear wall or brace has large stiffness, when it is combined with a frame system with better spatial adaptability, most of the floor horizontal forces are borne by the conventional shear wall or brace. Therefore, the damage under earthquake action often first concentrates on the conventional shear wall or brace. Due to the fact that a single medium and high-intensity earthquake lasts for a period of time, the conventional frame-shear wall or frame-brace is prone to zipper-like progressive failure and finally collapses. Summary of the Invention

[0006] The purpose of the present invention is to provide a vertical lateral force resisting member and its application, as well as a building with such a member. The vertical lateral force resisting member can significantly enhance the lateral stiffness of the building, while making the internal forces under horizontal loads relatively evenly distributed in the overall structure, significantly improving the ductility of the structure under high-intensity earthquakes, and facilitating construction and reducing costs.

[0007] The present invention is achieved through the following technical solutions: A vertical lateral force resisting member, which includes

[0008] An upper connecting member, whose upper end is connected to the top floor frame beam;

[0009] A lower connecting member, whose lower end is connected to the bottom floor frame beam;

[0010] A horizontal rod, which is placed horizontally, one end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod is hinged to the upper end of the lower connecting member.

[0011] A building, the load-bearing structure within which has the above-mentioned vertical lateral force resisting members.

[0012] Application of the vertical lateral force resisting members to a newly-built building.

[0013] Application of the vertical lateral force resisting members to a renovated building.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Under the condition of the same material consumption, the vertical lateral force resisting members have higher efficiency than the conventional bracing systems, with smaller lateral deformation of the building and good economy.

[0016] 2. The vertical lateral force resisting members do not transfer the vertical force caused by the horizontal load between the horizontal bars of adjacent floors, so that the seismic forces of each floor will not accumulate in the vertical lateral force resisting members, and the internal forces of the members of the vertical lateral force resisting members can be controlled within a relatively small range. This makes it possible to miniaturize the vertical lateral force resisting members.

[0017] 3. The vertical lateral force resisting members do not transfer the deformation caused by the vertical load between the frame beams, and are particularly suitable for strengthening and renovating existing buildings.

[0018] 4. After the vertical lateral force resisting members are added to the load-bearing frame system, the internal force distribution of the structure under the action of the horizontal force is uniform, and the ductility performance of the structure under the action of medium and high-intensity earthquakes is significantly improved.

[0019] 5. If the horizontal bars of the vertical lateral force resisting members are replaced with dampers instead of metal bars, the stiffness can be effectively adjusted, the damping of the structure system can be increased, and the ductility performance of the structure under the action of medium and high-intensity earthquakes can be further improved. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the single-layer structure of the building body with the members described in Embodiment 1 of the present invention installed.

[0021] Figure 2 It is the bending moment diagram under the action of the self-weight of the building body, where from left to right are the building body without bracing members, the building body with the vertical lateral force resisting members of the present invention installed, and the building body with traditional bracing members installed.

[0022] Figure 3 It is Figure 2 The axial force diagram under the action of an earthquake;

[0023] Figure 4 It is Figure 2 The bending moment diagram under the action of an earthquake;

[0024] Figure 5 is Figure 2 the deformation diagram under seismic action;

[0025] Figure 6 is the layout form of vertical lateral force resisting members; from left to right are the building without bracing members, the building with non - continuous layout of vertical lateral force resisting members between floors, the building with staggered layout of vertical lateral force resisting members between floors, and the building with vertical linear layout of vertical lateral force resisting members between floors;

[0026] Figure 7 is Figure 6 the deformation diagram under seismic action;

[0027] Figure 8 is Figure 6 the axial force diagram under seismic action;

[0028] Figure 9 is Figure 6 the bending moment diagram under seismic action;

[0029] Figure 10 is the single - layer structure schematic diagram of the component described in Embodiment 2 of the present invention installed on the building;

[0030] Figure 11 is the single - layer structure schematic diagram of the component described in Embodiment 1 of the present invention installed on the building;

[0031] Figure 12 is the single - layer structure schematic diagram of the component described in Embodiment 1 of the present invention installed on the building.

[0032] Label description: 1 - 1 upper left rod, 1 - 2 upper right rod, 2 - 1 lower left rod, 2 - 2 lower right rod, 3 horizontal rod, 4 column, 5 - 1 top floor frame beam, 5 - 2 bottom floor frame beam. Detailed implementation manners

[0033] The following is a detailed description of the present invention with reference to the accompanying drawings:

[0034] As Figure 1 shown: The vertical lateral force resisting member includes

[0035] an upper connecting member, whose upper end is connected to the top floor frame beam 5 - 1;

[0036] a lower connecting member, whose lower end is connected to the bottom floor frame beam 5 - 2;

[0037] a horizontal rod 3, placed horizontally, one end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod 3 is hinged to the upper end of the lower connecting member.

[0038] Placing vertical lateral force resisting members in the load-bearing structure composed of frame columns and frame beams can improve the lateral stiffness of the frame structure and resist the action of horizontal loads. The above-mentioned vertical lateral force resisting members can be continuously arranged or spaced according to the stiffness requirements between each floor.

[0039] The upper connecting member and the lower connecting member can select different structures or components according to specific circumstances. The following provides different embodiments according to the upper connecting member and the lower connecting member:

[0040] Embodiment 1

[0041] As Figure 1-9 shown: The upper connecting member includes an upper left rod 1-1 and an upper right rod 1-2. The upper ends of the upper left rod 1-1 and the upper right rod 1-2 are connected to the floor top frame beam 5-1; the lower ends of the upper left rod 1-1 and the upper right rod 1-2 are connected and hinged to one end of the horizontal rod 3;

[0042] The lower connecting member includes a lower left rod 2-1 and a lower right rod 2-2. The lower ends of the lower left rod 2-1 and the lower right rod 2-2 are connected to the floor bottom frame beam 5-2, and the upper ends of the lower left rod 2-1 and the lower right rod 2-2 are connected and hinged to the other end of the horizontal rod 3.

[0043] The above structure is finally composed of five members, with good effect in resisting horizontal loads and less investment cost, which is the optimal solution. In terms of effect, as Figure 5 shown: Under the action of earthquake, the top floor horizontal deformation of the conventional frame structure on the left side is the largest (the example structure is 66mm), the top floor horizontal deformation of the conventional frame-braced structure on the right side is the second (the example structure is 19mm), and the top floor horizontal deformation of the new lateral force resisting system in the middle is the smallest (the example structure is 16mm). Under the condition of the same material usage, the efficiency of the new lateral force resisting system is slightly better than that of the conventional frame-braced structure. At the same time, it should be noted that in the case of continuously setting new vertical lateral force resisting members, the main structure still maintains a shear-type inter-story deformation similar to that of a frame while the deformation is significantly reduced. Therefore, the new lateral force resisting system provided by the present invention is significantly different from the conventional frame-braced system in principle.

[0044] Embodiment 2

[0045] As Figure 10 shown: The upper connecting member is a V-shaped member 1-3. The two upper end parts of the V-shaped member 1-3 are connected to the floor top frame beam 5-1; the lower end of the V-shaped member 1-3 is hinged to one end of the horizontal rod 3;

[0046] The lower connecting member is an inverted V-shaped member 2-3. The two lower end parts of the inverted V-shaped member 2-3 are connected to the floor bottom frame beam 5-2; the upper end of the inverted V-shaped member 2-3 is hinged to the other end of the horizontal rod 3.

[0047] In Embodiments 1 and 2, the connection mode of the upper connection member and the floor top frame beam 5-1 in the frame plane can be a rigid connection, such as welding or bolt locking; it can also be a hinged connection, such as being hinged through a pin shaft. The connection mode of the lower connection member and the floor bottom frame beam 5-2 can also be a rigid connection or a hinged connection. Considering the requirement for the force stability of the connection member, a rigid connection is adopted outside the frame plane.

[0048] Embodiment 3

[0049] As Figure 11 shown: The upper connection member is the upper connecting plate 1-4, and the upper edge of the upper connecting plate 1-4 is connected to the floor top frame beam 5-1; the lower edge of the upper connecting plate 1-4 is hinged to one end of the horizontal rod 3;

[0050] The lower connection member is the lower connecting plate 2-4, and the lower edge of the lower connecting plate 2-4 is connected to the floor bottom frame beam 5-2; the upper edge of the lower connecting plate 2-4 is hinged to the other end of the horizontal rod 3.

[0051] The connection mode of the upper edge of the upper connecting plate and the floor top frame beam 5-1 and the connection mode of the lower edge of the lower connecting plate and the floor bottom frame beam 5-2 in the frame plane can both be a rigid connection or a flexible connection. The rigid connection can be welding or bolt multi-point locking, and the flexible connection can be multi-point connection through multiple hinge parts such as pin shafts and hooks. Considering the requirement for the force stability of the connection member, a rigid connection is adopted outside the frame plane.

[0052] Embodiment 4

[0053] As Figure 12 shown: The upper connection member is an inverted cone 1-5, and the top surface of the inverted cone 1-5 is connected to the floor top frame beam 5-1; the lower end of the inverted cone 1-5 is hinged to one end of the horizontal rod 3;

[0054] The lower connection member is a cone 2-5, and the bottom surface of the cone 2-5 is connected to the floor bottom frame beam 5-2; the upper end of the cone 2-5 is hinged to the other end of the horizontal rod 3.

[0055] The present invention further includes a building, and the load-bearing structure in the building has the above-mentioned vertical lateral force resisting members.

[0056] When the vertical lateral force resisting members are applied, they can be directly used for newly built buildings; they can also be used for the renovation of existing buildings by adding vertical lateral force resisting members to the existing buildings.

[0057] In the layout of the vertical lateral force resisting members, there can be several layout methods (such as Figure 6-9As shown, the finally formed building bodies respectively include a building body with vertically arranged lateral force resisting members discontinuous between floors, a building body with vertically arranged lateral force resisting members staggered between floors, and a building body with vertically arranged lateral force resisting members continuously arranged between floors. Generally speaking, for newly built buildings, the above three arrangement methods of vertically arranged lateral force resisting members can be adopted. If it is to renovate an existing building, generally, the discontinuous arrangement of vertically arranged lateral force resisting members between floors or the continuous vertical arrangement of vertically arranged lateral force resisting members between floors is considered.

[0058] The calculation examples show that: under the action of earthquake, the horizontal deformation at the top floor of the conventional frame structure on the left side is the largest (the calculated example structure is 55 mm); the horizontal deformation at the top floor is the second when the newly designed vertically arranged lateral force resisting members are discontinuous between floors (the calculated example structure is 20 mm); the horizontal deformation at the top floor is the smallest when the newly designed vertically arranged lateral force resisting members are staggered between floors (the calculated example structure is 11 mm); as a comparison, the horizontal deformation at the top floor is slightly larger than that of the staggered arrangement scheme when the newly designed vertically arranged lateral force resisting members are continuously arranged between floors (the calculated example structure is 13 mm) (see Figure 7 ).

[0059] Although the present invention is illustrated and described by using specific embodiments and their alternative ways, it should be understood that various changes and modifications can be implemented as long as they do not deviate from the spirit of the present invention. Therefore, it should be understood that the present invention is not limited in any sense except by the accompanying claims and their equivalent conditions.

Claims

1. Vertical lateral force resisting member, characterized in that: It includes an upper connecting member, whose upper end is connected to the floor top frame beam (5-1); a lower connecting member, whose lower end is connected to the floor bottom frame beam (5-2); a horizontal rod (3), which is horizontally placed. One end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod (3) is hinged to the upper end of the lower connecting member; both one end of the horizontal rod and the other end of the horizontal rod (3) refer to the endpoints of the horizontal rod; the upper connecting member is a V-shaped rod (1-3), and the two upper ends of the V-shaped rod (1-3) are connected to the floor top frame beam (5-1); the lower end of the V-shaped rod (1-3) is hinged to one end of the horizontal rod (3); the lower connecting member is an inverted V-shaped rod (2-3), and the two lower ends of the inverted V-shaped rod (2-3) are connected to the floor bottom frame beam (5-2); the upper end of the inverted V-shaped rod (2-3) is hinged to the other end of the horizontal rod (3).

2. Vertical lateral force resisting member, characterized in that: It includes an upper connecting member, whose upper end is connected to the floor top frame beam (5-1); a lower connecting member, whose lower end is connected to the floor bottom frame beam (5-2); a horizontal rod (3), which is horizontally placed. One end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod (3) is hinged to the upper end of the lower connecting member; both one end of the horizontal rod and the other end of the horizontal rod (3) refer to the endpoints of the horizontal rod; the upper connecting member is an upper connecting plate (1-4), and the upper edge of the upper connecting plate (1-4) is connected to the floor top frame beam (5-1); the lower edge of the upper connecting plate (1-4) is hinged to one end of the horizontal rod (3); the lower connecting member is a lower connecting plate (2-4), and the lower edge of the lower connecting plate (2-4) is connected to the floor bottom frame beam (5-2); the upper edge of the lower connecting plate (2-4) is hinged to the other end of the horizontal rod (3).

3. Vertical lateral force resisting member, characterized in that: It includes an upper connecting member, whose upper end is connected to the floor top frame beam (5-1); a lower connecting member, whose lower end is connected to the floor bottom frame beam (5-2); a horizontal rod (3), which is horizontally placed. One end of the horizontal rod is hinged to the lower end of the upper connecting member, and the other end of the horizontal rod (3) is hinged to the upper end of the lower connecting member; both one end of the horizontal rod and the other end of the horizontal rod (3) refer to the endpoints of the horizontal rod; the upper connecting member is an inverted cone (1-5), and the top surface of the inverted cone (1-5) is connected to the floor top frame beam (5-1); the lower end of the inverted cone (1-5) is hinged to one end of the horizontal rod (3); the lower connecting member is a cone (2-5), and the bottom surface of the cone (2-5) is connected to the floor bottom frame beam (5-2); the upper end of the cone (2-5) is hinged to the other end of the horizontal rod (3).

4. A building, characterized in that: The load-bearing structure in this building has the vertical lateral force resisting member described in any one of claims 1-3.

5. The application of the vertical lateral force resisting member described in any one of claims 1-3 in a newly-built building.

6. The application of the vertical lateral force resisting member described in any one of claims 1-3 in the renovation of an existing building.

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