Hollow block

Abstract

The invention relates to a hollow block which is a rectangular block with a through hole structure shaped like a Chinese character ri or shaped like a Chinese character tian. A bolting part is attached to the rectangular block; the bolting part is provided with one concave horizontal section and two L-shaped horizontal sections on the inner wall of each through hole of the rectangular block shaped like a Chinese character ri and the inner facade of an end rib; the concave facades of the bolting parts are opposite to each other; the outer facade and wall and the end ribs are seamlessly attached to form a stepped shape; the upper end of the bolting part extends out of the through hole, and the extension height is smaller than the height of the through hole; the horizontal length of the bolting part is smaller than 1 / 2 of the horizontal length of the through hole; and the lower end face of each bolting part is flush with the lower surface of the rectangular block. According to the unique bolted hole connecting structure, the built wall forms an inner structure with unique shear strength and other mechanical properties and shock-resistant and anti-crack functions, and the hollow block is easy to build and popularize.

Description

technical field [0001] The invention relates to building wall materials, in particular to a hollow building block. Background technique [0002] At present, new building wall materials are mainly divided into three categories: bricks, blocks, and plates. Blocks mainly include ordinary concrete blocks, lightweight concrete blocks, aerated concrete blocks, gypsum blocks, fly ash blocks, sintered hollow blocks, etc. The Ministry of Housing and Urban-Rural Development issued the "Announcement on Publishing the Promotion and Application of Wall Thermal Insulation System and Wall Materials and the Restriction and Prohibited Use of Technologies" (Announcement No. 1338 of the Ministry of Housing and Urban-Rural Development) which lists the types of blocks for new wall materials to be promoted technical name. [0003] The building structure needs to consider the seismic design according to the seismic fortification intensity of the area. The seismic activities in China are mainly d...

AI Technical Summary

Problems solved by technology

The earthquake damage of Wenchuan Earthquake in 2008 showed that the infill walls were damaged to varying degrees, and some damages even exceeded the main structure, resulting in unnecessary economic losses, especially for high-rise buildings with high-grade decoration conditions.

In order to prevent the filling wall from collapsing or forming long oblique cracks during earthquakes, the mechanical properties are often enhanced by setting tie bars in the mortar joints. The tie bars need to be anchored in reinforced concrete columns or walls, and it is difficult to reserve them accurately. Larger, the construction unit often adopts the method of replanting bars by drilling holes on the columns or walls. The disadvantages of this method are: first, there is damage to the columns or walls, and second, the quality of planting bars is not easy to control

Since the concrete hollow blocks have the characteristics of large porosity and a smaller mortar joint surface than solid clay bricks, and the control of the fullness of the mortar is often not strictly controlled during construction, resulting in the fullness of the mortar not meeting the requirements, and the resistance of the concrete block masonry The mechanical properties such as shear strength and structural integrity are worse than those of solid clay brick masonry, which is one of the main reasons for wall cracking

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