What is a frame shear wall?
Before introducing what is a frame-shear wall structure, let's first understand what is a shear wall structure. Shear wall, also known as wind-resistant wall or earthquake-resistant wall, is mainly used to bear horizontal load caused by wind load or earthquake in building construction and prevent structural shear damage. Divided into plane shear wall and three-dimensional shear wall, generally using reinforced concrete and cast-in-place reinforced concrete.
Let's learn about the frame structure. Frame structure refers to the structure composed of beams and columns connected by rigid joints or hinges, which constitutes a load-bearing system, that is, the frame composed of beams and columns resists both horizontal and vertical loads in use. The structure of the building wall is not load-bearing, but only plays the role of enclosure and separation.
What about the frame-shear wall structure? Frame-shear wall structure is also called frame-shear wall structure. Literally, a certain number of shear walls are arranged in the frame structure to form flexible and free use space. The mechanical characteristics are composed of two different lateral resistance structures, namely frame and shear wall structure. The interaction between frame and shear wall makes the whole frame-shear wall structure more stable.
Advantages of frame shear wall structure:
(1) Frame structure is flexible and can form a large space, but its ability to resist horizontal load is poor, and the shear wall structure is the opposite.
(2) Frame-shear wall structure combines the two and complements each other.
(3) Shear walls are arranged between some columns of the frame to form a structural system with large bearing capacity and flexible architectural layout. In this structure, the frame and shear wall work together, and the frame mainly bears vertical load, while the shear wall mainly bears horizontal load.
Scope of application of frame-shear wall structure: this structure is generally suitable for buildings with 10 ~ 20 floors.
Difference between frame shear wall and shear wall
Frame-shear wall is a new form of stress composed of frame and shear wall structure, so its frame is different from pure frame structure, and the shear wall in frame-shear wall structure is also different from the shear wall in shear wall structure. Because the [1] displacement of the shear wall is small at the lower level, and the shear wall bears most of the horizontal force when the frame is pulled to deform according to the bending curve, while at the upper level, on the contrary, the displacement of the shear wall is increasing, and the frame tends to retract, and the frame pulls the shear wall to deform according to the shear curve, and the frame bears not only the horizontal force generated by the external load, but also the additional horizontal force that pulls back the shear force. The shear wall not only does not bear the horizontal force generated by the shear wall load of the frame, but also bears the negative shear force because of adding an additional horizontal force to the frame. Therefore, even if the shear force produced by the external load of the upper floor is small, considerable shear force will appear in the frame. But now small high-rise residential buildings use more structures!
Shear wall structure is a structural system composed entirely of shear walls. Walls can be divided into load-bearing walls and shear walls according to their mechanical characteristics. The former mainly bears vertical loads, such as masonry walls. The latter mainly bears horizontal load. In seismic fortification areas, horizontal loads are mainly generated by horizontal earthquakes, so shear walls are sometimes called seismic walls. Shear walls can be divided into reinforced concrete shear walls, steel plate shear walls, steel reinforced concrete shear walls and reinforced block shear walls according to structural materials. Among them, reinforced concrete shear wall is the most commonly used.
Above, what is frame shear wall introduced by Bian Xiao? The advantages and disadvantages of frame shear wall are analyzed from various aspects. Consumers can analyze whether they like it or not, and then consider whether to build a frame shear wall. Bian Xiao also introduced the difference between frame shear wall and shear wall, from the structure and bearing capacity. Materials and other aspects are introduced and analyzed, hoping to help you distinguish between frame shear wall and shear wall.