Composite shear wall with stiffening ribs and L-shaped steel plates arranged in staggered mode

Abstract

The invention belongs to the field of shear wall structure design, and relates to a combined shear wall of L-shaped steel plates with staggered arrangement of stiffeners. According to the design requirements, stiffeners are arranged on the web of the channel steel plate to form a ribbed channel steel plate, and the flanges of two ribbed channel steel plates are welded to each other to form a rectangular cavity, and the stiffeners are arranged in a staggered manner in the rectangular cavity The short side of one rectangular cavity is welded to the end of the long side of another rectangular cavity to form an L-shaped cavity with staggered stiffeners, and concrete is poured in the cavity. The stiffeners are arranged on the web of the channel steel plate, which is beneficial to increase the mechanical bite force between the concrete and the steel plate, and improve the integrity of the structure; the stiffeners are arranged alternately in the rectangular cavity formed by two channel steel plates, which makes the rectangular The inside of the cavity is connected, and it is easy to vibrate when pouring concrete into the cavity, and it is easy to ensure the compactness of the concrete.

Description

technical field [0001] The invention belongs to the field of shear wall structure design, and relates to a combined shear wall of L-shaped steel plates with staggered arrangement of stiffeners. Background technique [0002] With the development of the economy, the urban population is becoming more and more dense, but land resources are becoming more and more scarce. In order to solve the problem of more people and less land, high-rise buildings have been erected one after another. For multi-story buildings, horizontal loads have little effect on their mechanical properties, and vertical loads play a controlling role; while for high-rise and super high-rise buildings, horizontal loads play a major role in controlling them, so the building structure must have sufficient lateral stiffness to resist horizontal loads. [0003] In high-rise building structures, shear walls are the most commonly used lateral force-resisting members. Traditional reinforced concrete shear walls req...

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Problems solved by technology

Traditional reinforced concrete shear walls require multiple construction procedures on the construction site, such as setting up formwork, binding steel bars, pouring concrete, curing, and removing formwork. The construction period is long and the construction cost is high.

The steel plate shear wall is a lateral force-resisting component developed in the 1970s. It is small in size and light in weight, which can increase the usable area of ​​the house and reduce the cost of the foundation. Under the action of a small horizontal load, there will be out-of-plane drumming, which will affect the appearance of the building. In addition, the "squeak" noise accompanied by the drumming will affect the comfort of the building.

Patent CN105821989A proposes a prefabricated steel tube beam concrete shear wall structure system. Its basic unit, the prefabricated inline steel tube beam concrete shear wall, is formed by connecting several U-shaped steel tube units and rectangular steel tube units. Concrete is poured inside the steel tubes. , the components of this structure can be standardized design, industrial production, and assembly construction, and the production efficiency is high, but the surface of the steel plate is smooth, the mechanical bite force between the concrete and the steel pipe is small, and the independent steel pipe units are easy to cause the concrete to be poured. These reasons Both will cause adverse effects on structural performance; patent CN205206087U proposes a web opening type composite structure shear wall, and concrete is poured in the steel beam to form the shear wall, wherein the steel beam is provided with through holes on multiple webs It is composed of side-by-side tailor-welded H-beams, but due to the small size of the through-holes on the web and the size of the beams, the concrete is not easy to be poured densely.

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