High-seismic-resistance light high-intensity reinforced column

Abstract

The invention relates to a high-seismic-resistance light high-intensity reinforced column and is characterized in that the high-seismic-resistance light high-intensity reinforced column is formed by depositing concrete after a reinforcement cage is assembled, wherein the reinforcement cage comprises four fission stirrups with equal sections, a center positioning stirrup, and longitudinal bards, the space between the external limbs of the two adjacent fission stirrups ranges from 25 mm to 200 mm; the center positioning stirrup is partially overlapped with the stirrup part of each limb of the four fission stirrups with equal sections, a plurality of longitudinal ribs are arranged on the inner sides of the fission stirrups and the positioning stirrup; at least one longitudinal rib is arranged in the overlapping part between the fission stirrup and the positioning stirrup, and the fission stirrup and the positioning stirrup are fixed into a whole; and the weights of the raw materials in the concrete are as follows: 130 kg / m3 to 180 kg / m of water, 160 kg / m3 to 500 kg / ms of cement, 50 kg / m3 to 250 kg / m of mineral admixtures, 100 kg / m3 to 400 kg / m of light aggregates, 300 kg / m3 to 900 kg / m of broken stones, 650 kg / m3 to 850 kg / m of sand, and 4 kg / m3 to 15 kg / m3 of water reducers. The high-seismic-resistance light high-intensity reinforced column has the advantages of high seismic performance, deformability, strong bearing capacity, and lightness.

Description

technical field [0001] The invention relates to the field of concrete buildings, in particular to a high-seismic light-weight high-strength reinforced concrete column. Background technique [0002] The seismic performance of a building mainly depends on the ability of the structure to absorb seismic energy, which is determined by the product of its bearing capacity and deformation capacity. A structure with low bearing capacity but high ductility can absorb more energy. Although it is damaged earlier, it can withstand large deformation and avoid collapse; on the contrary, a brittle structure with high bearing capacity and low deformation capacity , the absorbed energy is limited, and once it encounters an earthquake that exceeds the design level, it is prone to brittle failure and suddenly collapses, which violates the design principle of "a big earthquake will not collapse" in the building code. [0003] The split-column technique is a method in which a full-section column...

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Problems solved by technology

However, so far, concrete containing light aggregates is mostly used in beams, slabs and other components, as well as for bridge deck pavement, and there are few studies on load-bearing structures.

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