四川建材
四川建材
사천건재
SICHUAN BUILDING MATERIALS
2015年
2期
63-64,67
,共3页
高文艺%姚志刚%莫大霖%熊奇伟
高文藝%姚誌剛%莫大霖%熊奇偉
고문예%요지강%막대림%웅기위
预应力区域约束混凝土梁%试验%受弯承载力%截面短期刚度
預應力區域約束混凝土樑%試驗%受彎承載力%截麵短期剛度
예응력구역약속혼응토량%시험%수만승재력%절면단기강도
prestressed regional confined concrete beams%experiment%the bending bearing capacity%short-term stiffness of cross section
本文对1根预应力普通混凝土梁和3根约束箍筋间距不同的预应力区域约束混凝土梁进行了抗弯承载力试验和研究。对比分析得出预应力区域约束混凝土梁受弯承载力有大幅度提高。由于配筋率的提高，构件的刚度也有较大幅度的提高，因此在相同刚度条件下，可以减小构件截面尺寸，获得较大的建筑空间，减小结构自重，降低造价，从而创造更大的经济效益。
本文對1根預應力普通混凝土樑和3根約束箍觔間距不同的預應力區域約束混凝土樑進行瞭抗彎承載力試驗和研究。對比分析得齣預應力區域約束混凝土樑受彎承載力有大幅度提高。由于配觔率的提高，構件的剛度也有較大幅度的提高，因此在相同剛度條件下，可以減小構件截麵呎吋，穫得較大的建築空間，減小結構自重，降低造價，從而創造更大的經濟效益。
본문대1근예응력보통혼응토량화3근약속고근간거불동적예응력구역약속혼응토량진행료항만승재력시험화연구。대비분석득출예응력구역약속혼응토량수만승재력유대폭도제고。유우배근솔적제고，구건적강도야유교대폭도적제고，인차재상동강도조건하，가이감소구건절면척촌，획득교대적건축공간，감소결구자중，강저조개，종이창조경대적경제효익。
In this paper, the prestressed ordinary concrete beam and three prestressed regional confined concrete beams with different of confined stirrup spacing were tesed about The bending bearing capacity. Compare and analysis about bending bearing capacity of prestressed regional confined concrete beams are improved to a great extent. Due to the increase of reinforce-ment ratio, the component stiffness have significantly improved, so under the condition of the same stiffness, can reduce the components section size, thus we can obtain larger architectural space, reduce weight of, structure, reduce cost, and it create greater economic benefits.
