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1. 发明专利

JPS6136451A Construction of mortar top coat concrete structure 失效
标题翻译： MORTAR顶层混凝土结构的构造
公开(公告)号：JPS6136451A
公开(公告)日：1986-02-21
申请号：JP15641084
申请日：1984-07-26
申请人： Kajima Corp
发明人： KAMEDA YASUHIRO , TAKEI YOSHIKAZU , IWAI KOJI , TOMIOKA HIROJI , ABIKO AKIHISA , NAKAYAMA MINORU , MATSUNAGA KATSUMI
IPC分类号： E04F13/02

4. 发明专利

JPH02272138A SOUNDPROOF FLOOR 失效
公开(公告)号：JPH02272138A
公开(公告)日：1990-11-06
申请号：JP9397389
申请日：1989-04-13
申请人： KAJIMA CORP
发明人： HOSONO TOSHIRO , TAKEI YOSHIKAZU , ABIKO AKIHISA , TANO MASANORI
IPC分类号： E04B5/43 , E04F15/18 , E04F15/20
摘要： PURPOSE:To decrease sound emitted from a floor by installing a dynamic vibra tion absorber composed of a mass body end a board-shaped elastic body in an underfloor space provided under floor boards installed over a floor slab of a building body with a space secured thereunder. CONSTITUTION:A space 6 formed of floor joists 4a and 4 borne by rubber vibration isolators 5 is provided above a floor slab 1 of a building body and floor boards 3 are laid thereon. At the inside of the underfloor space 6, a dynam ic vibration absorber composed of a mass body 7 made from concrete block or the like and a board-shaped elastic body 8 is installed at the position of loop of the vibration mode of resonant characteristic frequency of the slab 1. Thereby a floor having high sound isolating capacity can be obtained.

5. 发明专利

JPH01318657A SOUNDPROOF FLOOR 失效
公开(公告)号：JPH01318657A
公开(公告)日：1989-12-25
申请号：JP15172988
申请日：1988-06-20
申请人： KAJIMA CORP
发明人： HOSONO TOSHIRO , TAKEI YOSHIKAZU , ABIKO AKIHISA , TANO MASANORI
IPC分类号： E04F15/18 , E04F15/20
摘要： PURPOSE:To reduce harmful effect of vibration and radiant sound by placing a dynamic vibration absorber, composed of an added load and spring stands, to the upper floor side in a space beneath the upper floor supported above a floor slab, and by making the absorber coordinated to the natural frequency of the floor slab. CONSTITUTION:An upper floor 3 is laid above a floor slab 1 through vibration isolating rubber stands 5, joists 4a (for span) and joists 4b (for connection). A dynamic vibration absorber with a rigid added load 7, made from a concrete block or the like, supported by spring stands 8 and further supported by supporting instruments 11, is laid in a space beneath the floor. By such arrangement, adjustment coordinative to the natural frequency of the floor slab can be made and, because of this, radiant sound 10 produced by impulsive shaking force 9 can be reduced. Thereby, a soundproof floor structure that reduces vibration and radiant sound harmful to the residents of the upper and lower stories can be obtained.

6. 发明专利

JPH033783B2 失效
公开(公告)号：JPH033783B2
公开(公告)日：1991-01-21
申请号：JP15641084
申请日：1984-07-26
申请人： KAJIMA CORP
发明人： KAMEDA YASUHIRO , TAKEI YOSHIKAZU , IWAI KOJI , TOMIOKA HIROJI , ABIKO AKIHISA , NAKAYAMA MINORU , MATSUNAGA KATSUMI
IPC分类号： E04F13/02

8. 发明专利

JPS61261003A MANUFACTURE OF FORMWORK MATERIAL 失效
公开(公告)号：JPS61261003A
公开(公告)日：1986-11-19
申请号：JP10141785
申请日：1985-05-15
申请人： KAJIMA CORP , OSHIKA SHINKO CO
发明人： FUJIMOTO MASARU , ARAKI GORO , IGATA MASAMITSU , KATSUSAWA YOSHINAGA , TAKEI YOSHIKAZU , ABIKO AKIHISA
IPC分类号： B28B11/02 , B28B11/08 , E04G9/05 , E04G9/10

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