Separate foundation with functions of seismic reduction and isolation
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A detachable, shock-absorbing technology, applied in the field of detached foundation, can solve the problems of no shock-absorbing function, permanent damage, building structure damage, etc., to protect life and property safety, reduce damage rate, and facilitate disassembly. Effect
Active Publication Date: 2020-06-05
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology
Traditional independent foundations are fixed together with the surrounding soil, and can be designed into different types of cross-sectional shapes and sizes according to needs, such as pile foundations, anchor foundations, enlarged foundations, caisson foundations, etc., but these foundations themselves have no The shock isolation function needs to realize the shock absorption and isolation function through the connection between the foundation and the superstructure. Usually, a shock-absorbing energy-dissipating support or a shock-isolation layer is set between the foundation and the superstructure, but this single shock-isolation The shock absorption effect of this method is not ideal for large earthquakes or even super earthquakes. Under the action of large earthquakes or even super earthquakes, bridges and building structures using existing shock absorption and isolation methods will still be damaged, and once damaged, they will be permanent. damaged beyond repair
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Embodiment 1
[0033] In a typical implementation of the present application, such as Figure 1-Figure 5 As shown, a detached foundation with shock-absorbing and isolating functions is proposed.
[0034] The separated foundation is composed of three parts, the upper foundation is called the upper foundation 5, the lower part is called the lower foundation 10, and the side part is called the side support. The material of the upper foundation itself is reinforced concrete, which can be prefabricated or poured on site. The foundation adopts three-way (horizontal X, horizontal Y, vertical) shock-absorbing and isolation devices to reliably connect with the surrounding soil and the lower foundation;
[0035] Specifically, in the horizontal direction, multiple groups of buffer bearings are installed on the front, rear, and left and right sides of the upper foundation. The buffer bearings are fixed on the side supports through seismic isolation bearings and bolt plates. The spring and the shock-abs...
Embodiment 2
[0057] In another typical embodiment of the present application, a method for constructing a separated foundation as described in Embodiment 1 is also provided.
[0058] Include the following steps:
[0059] First, the lower foundation 10 adopts reinforced concrete material and the soil body 6 to be poured on site as a whole. When pouring the lower foundation, the first backing plate 9 is pre-embedded on the top surface of the lower foundation, and the second backing plate is placed on the first backing plate 9. 7. Install the shock-isolation support 8 on the second backing plate 7; place 4-8 groups of shock-isolation supports according to actual needs;
[0060] Then, on the support, the prefabricated upper foundation 5 (the upper foundation 5 can also be cast on site) is placed in place, and the soil around the foundation connects the side plate 1 (thickness 2-3cm) with the soil through the anchor bolt 3. body fixed.
[0061] Set detachable bolt plates 3 at the correspondin...
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Abstract
The invention provides a separate foundation with the functions of seismic reduction and isolation. The separate foundation with the functions of seismic reduction and isolation comprises an upper-part foundation, a lower-part foundation and a side-surface support, wherein the lower-part foundation is located below the upper-part foundation, and connected with the upper-part foundation through a first seismic isolation support seat, and the seismic isolation support seat is used for supporting the upper-part foundation and absorbing a horizontal load and a vertical load; and the side-surface support comprises a side plate surrounding in the circumferential direction of the upper-part foundation, and a plurality of buffer support seats; and the side plate is connected with the side surfaceof the upper-part foundation through the buffer support seats and a second seismic isolation support seat sequentially, the buffer support seats and the second seismic isolation support seat support the side surface of the upper-part foundation, and are used for absorbing a tension-pressure stress in the horizontal direction of the upper-part foundation. The functions of seismic reduction and isolation are directly added to the foundation, and a building is capable of realizing the effects of seismic reduction and isolation only by being constructed on the foundation; the separate foundation overcomes the problems that a traditional independent foundation is too large in size and does not easily realize the effect of comprehensive seismic prevention.
Description
technical field [0001] The application relates to a detached foundation with functions of shock absorption and isolation. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Earthquakes are one of the most serious natural disasters faced by mankind. Many major earthquakes in history have caused major damage to bridges, building structures and other infrastructure, resulting in heavy casualties and huge economic losses. my country is one of the countries with the most serious earthquake disasters in the world. Therefore, how to improve the level of earthquake resistance and develop insulation-reducing Structures and devices with seismic function have become the focus of research in the field of earthquake engineering in my country. The ground vibration caused by the seismic wave is transmitted to the superstructure through the foundation, ca...
Claims
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Application Information
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