CN203238804U - Novel high-rise structure system with energy dissipation outrigger - Google Patents

Abstract

The utility model relates to a new high-rise structural system of energy-dissipating and shock-absorbing outrigger trusses. An outrigger truss is arranged between a shear wall and a giant steel-reinforced concrete column. The chords of the outrigger trusses are arranged in parallel, the adjacent outrigger truss chords are connected by the vertical webs of the outrigger trusses, and energy-dissipating and shock-absorbing components are arranged between the diagonals of the vertical webs of the adjacent outrigger trusses. The utility model proposes to arrange energy-dissipating and shock-absorbing components between the core tube and the peripheral giant columns with the outrigger truss braces. The energy-dissipating and shock-absorbing components in the outrigger truss can provide structural stiffness under frequent earthquakes, yield under fortification intensity earthquakes, and dissipate ground motion energy through its energy dissipation capacity under rare earthquakes. The utility model protects the main body of the structure from being damaged under the action of strong earthquakes through the conceptual design of super high-rise multi-channel anti-seismic defense lines.

Description

A new high-rise structural system of energy-dissipating and shock-absorbing outrigger trusses

technical field

The utility model relates to a novel energy-dissipating and shock-absorbing outrigger truss high-rise structure system, which belongs to the technical field of anti-seismic and energy-dissipating and shock-absorbing engineering structures.

Background technique

The super high-rise structure bears the vertical load as well as the horizontal action, and the horizontal action is particularly prominent in the super high-rise structure. In order to form an effective structural system to resist horizontal action and reduce bottom bending moments and top displacements, most super high-rise structural systems use peripheral giant columns, core tubes, and outrigger trusses that coordinate the two to work together to form a spatial force mechanism. together constitute the main force-bearing members of the structure. However, due to the sudden change in the stiffness of the outrigger truss, the stress on the core tube at the outrigger truss is complex and the internal force is sudden, which makes the structure weak in terms of earthquake resistance. In order to ensure the safety of super high-rise structures, realize the performance design of super high-rise structures and multiple lines of defense against earthquakes, and effectively solve the problem of sudden changes in the internal force of the core tube caused by outrigger trusses, the outrigger trusses are designed as variable stiffness outrigger trusses. Keep the stiffness constant under earthquakes and fortification intensity earthquakes, and reduce the stiffness under rare earthquakes to realize the energy dissipation mechanism, thereby dissipating the seismic energy input and protecting other main structural components from being damaged. is of great significance.

Contents of the invention

The purpose of the utility model is to provide an outrigger truss super high-rise structure with variable stiffness and energy dissipation capability, which is realized by setting displacement dampers on the oblique web bars in the outrigger truss. Provide stiffness to realize energy dissipation mechanism under rare earthquake level, thereby protecting other main stressed components. The utility model is suitable for high-rise structures whose seismic fortification intensity is 6 degrees or above. The utility model has clear anti-seismic concept design, simple structure and convenient construction, can ensure multiple anti-seismic defense lines of super high-rise structures, and at the same time improves the economy and feasibility of post-earthquake repair of the structure.

The utility model proposes a novel high-rise structure system of energy-dissipating and shock-absorbing outrigger trusses, including energy-dissipating and shock-absorbing components 1, outrigger trusses, giant steel-reinforced concrete columns 4 and shear walls 5, shear walls 5 and giant steel Outrigger trusses are arranged between the bone concrete columns 4, and the outrigger trusses are composed of outrigger truss chords 2 and outrigger truss vertical webs 3, the outrigger truss chords 2 are arranged in parallel, and the adjacent outrigger truss chords 2 pass through The vertical web members 3 of the outrigger trusses are connected, and the energy dissipation and shock absorbing components 1 are arranged between the opposite corners of the vertical web members of the adjacent outrigger trusses.

In the present invention, the energy-dissipating and shock-absorbing component 1 is a displacement damper, specifically a large-scale anti-buckling restraint support or a metal damper.

In the utility model, the energy-dissipating and shock-absorbing component 1 is made of mild steel with a low yield point, so as to ensure that it can provide stiffness under the action of frequent earthquakes, enter yield under the action of fortification intensity earthquakes, and dissipate ground vibrations under the action of rare earthquakes energy.

Compared with the traditional outrigger truss super high-rise structure system, the utility model has the following advantages:

(1) Under frequent earthquakes and wind loads, the outrigger truss diagonal bar damper keeps the stiffness constant, providing stiffness for the structure, reducing the bottom bending moment and top displacement. Under the earthquake of fortification intensity, the diagonal members of the outrigger truss enter into yield, and its stiffness changes, which reduces the sudden change of its internal force and protects the main structure.

(2) Under the action of rare earthquakes, the stiffness of the outrigger truss becomes smaller, and at the same time, the displacement dampers arranged on the diagonal members generate energy dissipation, thereby protecting other main components from damage.

(3) The cost of the materials used is low, the structure is simple, the construction is convenient, and the anti-seismic effect is good.

(4) Post-earthquake repairs facilitate the replacement of energy-dissipating and shock-absorbing components, providing hardware guarantees for structural recoverability.

Description of drawings

Fig. 1 is the front elevation view of the utility model's energy-dissipating and shock-absorbing outrigger truss;

Fig. 2 is the A-A sectional view of the utility model energy-dissipating and shock-absorbing outrigger truss;

Fig. 3 is the B-B sectional view of the utility model energy-dissipating and shock-absorbing outrigger truss;

Fig. 4 is a large sample diagram of energy dissipation and shock absorbing parts nodes at the position of the web bar of the energy dissipation and shock absorbing outrigger truss of the utility model.

Numbers in the figure: 1 is the energy dissipation and shock absorption component, 2 is the chord of the outrigger truss, 3 is the vertical web of the outrigger truss, 4 is a giant steel concrete column, and 5 is a shear wall.

Detailed ways

Further illustrate the utility model below by embodiment in conjunction with accompanying drawing.

Example 1:

As shown in Figures 1-4, the utility model is a new type of high-rise structure system of energy-dissipating and shock-absorbing outrigger trusses, including energy-dissipating and shock-absorbing components 1, chords of outrigger trusses 2, vertical webs of outrigger trusses 3, Giant reinforced concrete column 4, reinforced concrete shear wall 5. An outrigger truss is set between the giant steel-reinforced concrete column 4 and the reinforced concrete shear wall 5, and energy-dissipating and shock-absorbing components (displacement dampers, which are required to change the stiffness and be able to energy dissipation, such as, but not limited to, buckling-restrained braces). The energy-dissipating and shock-absorbing component 1 is connected with the chord of the outrigger truss and the giant steel-reinforced concrete column 4 by bolts. See Figure 4 for a large sample of the connection nodes.

The above is a typical example of the utility model, and the implementation of the utility model is not limited thereto.

Claims (3)

1. A novel energy-dissipating and shock-absorbing outrigger truss high-rise structure system, comprising energy-dissipating and shock-absorbing components (1), outrigger trusses, giant steel-reinforced concrete columns (4) and shear walls (5), characterized in that: An outrigger truss is arranged between the shear wall (5) and the giant steel reinforced concrete column (4). The outrigger truss is composed of the outrigger truss chord (2) and the outrigger vertical web (3). The bars (2) are arranged in parallel, the adjacent outrigger truss chords (2) are connected by the outrigger vertical webs (3), and the energy dissipation and shock absorption are arranged between the adjacent outrigger vertical webs Parts (1). 2. A novel energy-dissipating and shock-absorbing outrigger truss high-rise structure system according to claim 1, characterized in that: the energy-dissipating and shock-absorbing component (1) is a displacement damper, specifically a large-scale anti-buckling restraint support or a metal damper. 3. A novel energy-dissipating and shock-absorbing outrigger truss high-rise structure system according to claim 2, characterized in that: said energy-dissipating and shock-absorbing components (1) are made of mild steel with a low yield point.

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