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Anonymous users2024-02-071. The following situations need to be equipped with shockproof jointsa. When the building plane is complex and there are large protruding parts;
b. When the height difference of the building façade is more than 6 meters;
c. The building has a staggered floor and a large difference in the height of the floor slab;
d. When the structural stiffness and mass of the adjacent parts of the building are quite different.
Settlement joints. and expansion joints can double as seismic joints.
2. Set the requirements for shockproof joints and the width of shockproof jointsCode for Seismic Design of Buildings
Provisions: high-rise reinforced concrete.
It is advisable to avoid the irregular building structure specified in the section of this code.
scheme, no shockproof joints; When it is necessary to set up a shockproof joint, the following provisions shall be met:
The minimum width of the shockproof joint shall meet the following requirements:
1) Frame structure.
The width of the shockproof joint of the house should not be less than 15mm when the height does not exceed 100m; When it exceeds 15m, 6 degrees, 7 degrees, 8 degrees, and 9 degrees should be widened by 20mm for each additional height of 5m, 4m, 3m, and 2m.
2) Frame-shear wall structure.
The width of the earthquake-proof joints of the house shall not be less than 70% of the value specified in item 1) of this paragraph, and the width of the shockproof joints of the house with shear wall structure shall not be less than 50% of the value specified in item 1) of this paragraph; And it should not be less than 100mm.
3) When the structure types on both sides of the anti-seismic joint are different, it is advisable to determine the joint width according to the structural type that requires a wider anti-seismic joint and the lower house height.
For masonry buildings, priority should be given to the structural system of transverse wall load-bearing or mixed load-bearing of vertical and horizontal walls.
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Anonymous users2024-02-06Hello, glad to answer for you.
Seismic joints are seismic joints, and their width setting requirements are as follows:
1) The width of the shockproof joint of the frame structure house should not be less than 100mm when the height does not exceed 15m; When it exceeds 15m, 6 degrees, 7 degrees, 8 degrees, and 9 degrees should be widened by 20mm for each additional height of 5m, 4m, 3m, and 2m.
2) The width of the seismic joints of the frame-shear wall structure house shall not be less than 70% of the value specified in item 1) of this paragraph, and the width of the shockproof joint of the shear wall structure house shall not be less than 50% of the value specified in item 1) of this paragraph; And it should not be less than 100mm.
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Anonymous users2024-02-05When the plane shape is complex, it is advisable to divide it into regular and simple units with shockproof joints. However, for high-rise structures, it is advisable to avoid seams as much as possible.
When it is necessary to set up a shockproof joint, its minimum width should meet the following requirements:
1) The width of the shockproof joint of the frame structure house, when the height does not exceed 15m, it can be 70mm; When it exceeds 15m, 6 degrees, 7 degrees, 8 degrees and 9 degrees should be widened by 20mm for each additional height of 5m, 4m, 3m and 2m.
2) 70% of the above-mentioned value of the specified value for the frame can be used for the width of the seismic joint of the frame --- seismic wall structure house, and 50% of the value specified for the frame can be used for the width of the earthquake-proof joint of the earthquake-resistant wall structure house; And none of them should be less than 70mm.
3) When the structural systems on both sides of the shockproof joint are different, the width of the shockproof joint should be adopted according to the provisions of the need for a wider one, and the width of the joint can be calculated according to the lower height of the house.
When there is a large difference in the structural height, stiffness or floor height between the two sides of the seismic joint of the frame structure house, the anti-collision wall perpendicular to the anti-seismic joint can be set at the end of the house on both sides of the joint along the full height, and the number of anti-collision walls on each side should not be less than two, which should be arranged symmetrically respectively, and the length of the wall limb can not be greater than one column spacing.
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