What are the models, sizes, and spacing of dry hanging pendants and bolts? What are the bolts? Be sp

Dry pendants have single hooks, double hooks, picks, corner codes, etc., all of which are very simple. The vast majority of them are stamped and formed in one step.

Dry pendants are stamped, because ordinary 201 stainless steel will rust after a long time, so at this stage, most of them are used more than 304, about 19 yuan a kilogram.

To fix the dry pendant, some factories use hexagonal bolts, but more are stainless steel back bolts, commonly used are 304 materials, M6 * 30, as well as M8 * 25, M8 * 30, are very cheap. For example, a set of hexagonal bolts (bolts, nuts, gaskets, spring pads) of M8*30 is only pentagonal, while M6*30 is cheaper and has more triangles.

Stainless steel back bolts are a lot more expensive, 304, commonly used 8 * 32 to yuan, 6 * 32 also to 8 angles.

Dongzhong Dazhan stainless steel also makes these products. Integrity through members, quality assurance, low advantage.

The strength of the dry-hung stone curtain wall itself involves the thickness, length, width, size and size of the stone and the fixed square of the dry-hanging. According to the requirements of the technical specifications for metal and stone curtain wall engineering (JGJL33-2001): the thickness of the stone used for the stone curtain wall should not be less than 25mm, the area of the stone should not be larger, and the pendant is generally stainless steel pendant.

Angle steel connectors, stainless steel pendants, bolts, welding rods, and structural adhesives should have material certificates, factory certificates and inspection reports.

The structural stability of the main and secondary frames (i.e., columns and beams) of the dry-hung should meet the design requirements. Considering the convenience of engineering construction, the arrangement of the column should be matched with the arrangement of the vertical joint of the stone; The arrangement of the beams should be matched with the arrangement of the transverse joints of the stone. The connection between the column and the structure:

On the wall structure, the embedded iron is set every 2 meters, the column and the embedded iron are welded by short circuit (No. 10 channel steel), and the influence of temperature stress is taken into account during the construction of the column, and the gap of 15mm is set up in the middle. Pay attention to the disconnection to stagger the connection of the beam. The connection between the beam and the column should also take into account the influence of temperature stress, and the connection should be connected with the column through corner codes and bolts.

Column and beam and structural plane according to the size of the keel, the convenience of construction generally retain the spacing of 30-50mm, so that it is conducive to the installation of column beam, and is conducive to eliminating the construction (structural plane, column and beam) error, the size of the column channel steel and beam angle steel used in the project should meet the design requirements.

According to the seismic requirements, the connecting parts welded with the main body are made of Q235 low carbon steel, and its chemical composition and mechanical properties, including the yield point, should meet the provisions of the "GB700-88" national standard, and all the remaining pendants are made of stainless steel plate (stainless steel material is 0Cr18Ni9), and according to the "GB4237-92" standard to test the chemical composition of stainless steel and the strength limit, elongation and other physical properties, the pendant should have load-bearing shear resistance and deflection test. The welding rod is made of E4303 carbon steel electrode, and the welding rod should meet the national standard of "GB5117-85".

There are three common specifications of back bolt pendants, which are H-type, ear-type and C-type. Type H is composed of an aluminum alloy body, two nylon strips (rubber strips), and two adjusting screws, which are usually used for dry hanging of thin stone and ceramic plates.

The back bolt (percussion type) also has the following advantages: the installation process is easy to control, widely applicable, and the construction is convenient and fast. Lock-key fixation, the initial installation stress is almost negligible.

The closed Z-shaped elastic pressure ring structure can completely disperse the temperature stress caused by the different temperature strain between the stone and the back bolt when the ordinary back bolt is applied.

The ultimate failure form on natural stone slabs is cone failure of slabs, which is very safe. By adjusting the drilling depth, the surface of the plate and the bottom of the hole can be kept at a constant distance to compensate for the thickness tolerance. Under the same applied load, the bending stress of the plate surface can be reduced by optimizing the position of the back bolt.

Dry-hung stone has short groove type, long groove type, back bolt type... There are many types of back bolt type, basically all of them are in the form of aluminum alloy pendant group plus bolts, many of them have their own molds, the basic style is the same, but slightly different, if the stone volume is relatively large, you can also choose to open a mold to do what you think is reasonable aluminum alloy pendant.

1. H type. It is composed of an aluminum alloy body, two nylon strips (rubber strips), and two adjusting screws, which are usually used for dry hanging of thin stone and ceramic plates.

2. Ear shape. It is composed of aluminum alloy body, three nylon strips (rubber strips) and adjusting screws, which is suitable for dry hanging of stone and ceramic plates of various thicknesses.

3. Type C. It is composed of two pieces of aluminum alloy body and adjusting screws, which is suitable for dry hanging of stone and ceramic plates of various thicknesses.

This installation is generally composed of two parts: a back bolt sleeve and a bolt. The back bolt is inserted into the drilled hole, the head of the back bolt sleeve is clamped and fixed with a wrench, and the bolt is inserted into the anchor bolt sleeve and tightened to the bottom of the back bolt sleeve. The backing sleeve will expand to its set size, allowing it to be fixed in the drilled hole.