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Composite nuclear power plant containment vessel prestress system and nuclear power plant containment vessel
The invention discloses a composite nuclear power plant containment vessel prestress system and a nuclear power plant containment vessel, which can reduce the effective prestress loss of horizontal steel beams in the nuclear power plant containment vessel, thereby reducing the number of the horizontal steel beams playing a role in controlling the prestress construction period of the containment vessel, and further shortening the prestress construction period. Meanwhile, the construction cost of the prestress system is reduced. The composite nuclear power plant containment vessel prestress system comprises a plurality of first prestress steel beams (2) and a plurality of second prestress steel beams (3). The first prestressed steel beams (2) comprise bonding prestressed tendons. And the second prestressed steel beam (3) comprises a sheath (31) and an unbonded prestressed tendon (32). The first friction coefficient mu1 between the unbonded prestressed tendons (32) and the sheath (31) is smaller than the second friction coefficient mu2 between the bonded prestressed tendons and the inner wall of the inverted-U-shaped hole channel.
本发明公开了一种复合型核电厂安全壳预应力系统及核电厂安全壳，能够减小核电厂安全壳中水平钢束的有效预应力损失，从而降低对安全壳预应力施工工期起控制作用的水平钢束的数量，进而缩短预应力施工工期，同时降低预应力系统的施工成本。所述复合型核电厂安全壳预应力系统包括多个第一预应力钢束(2)和多个第二预应力钢束(3)。所述第一预应力钢束(2)包括有粘结预应力筋。所述第二预应力钢束(3)包括护套(31)和无粘结预应力筋(32)。其中，所述无粘结预应力筋(32)与所述护套(31)之间的第一摩擦系数μ1，小于所述有粘结预应力筋与所述倒U形孔道的内壁之间的第二摩擦系数μ2。
Composite nuclear power plant containment vessel prestress system and nuclear power plant containment vessel
The invention discloses a composite nuclear power plant containment vessel prestress system and a nuclear power plant containment vessel, which can reduce the effective prestress loss of horizontal steel beams in the nuclear power plant containment vessel, thereby reducing the number of the horizontal steel beams playing a role in controlling the prestress construction period of the containment vessel, and further shortening the prestress construction period. Meanwhile, the construction cost of the prestress system is reduced. The composite nuclear power plant containment vessel prestress system comprises a plurality of first prestress steel beams (2) and a plurality of second prestress steel beams (3). The first prestressed steel beams (2) comprise bonding prestressed tendons. And the second prestressed steel beam (3) comprises a sheath (31) and an unbonded prestressed tendon (32). The first friction coefficient mu1 between the unbonded prestressed tendons (32) and the sheath (31) is smaller than the second friction coefficient mu2 between the bonded prestressed tendons and the inner wall of the inverted-U-shaped hole channel.
本发明公开了一种复合型核电厂安全壳预应力系统及核电厂安全壳，能够减小核电厂安全壳中水平钢束的有效预应力损失，从而降低对安全壳预应力施工工期起控制作用的水平钢束的数量，进而缩短预应力施工工期，同时降低预应力系统的施工成本。所述复合型核电厂安全壳预应力系统包括多个第一预应力钢束(2)和多个第二预应力钢束(3)。所述第一预应力钢束(2)包括有粘结预应力筋。所述第二预应力钢束(3)包括护套(31)和无粘结预应力筋(32)。其中，所述无粘结预应力筋(32)与所述护套(31)之间的第一摩擦系数μ1，小于所述有粘结预应力筋与所述倒U形孔道的内壁之间的第二摩擦系数μ2。
Composite nuclear power plant containment vessel prestress system and nuclear power plant containment vessel
一种复合型核电厂安全壳预应力系统及核电厂安全壳
DONG CHEN (author) / ZHANG CHUNLONG (author) / LIU YU (author) / WU QIANTING (author) / FENG ZHIMAO (author) / GAO JINGWEI (author) / WANG LILI (author) / SUI CHUNGUANG (author) / ZHAO JINTAO (author) / MENG JIAN (author)
2024-10-08
Patent
Electronic Resource
Chinese
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Workshop on Prestress Losses in Nuclear Power Plant Containment
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