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    • 2. 发明专利
    • Method of constructing approach section
    • 构建方法的方法
    • JP2007247266A
    • 2007-09-27
    • JP2006072222
    • 2006-03-16
    • Kawatetsu Kyoryo Tekko KkMaeda Corp前田建設工業株式会社川鉄橋梁鉄構株式会社
    • AKASAKA YUJIHARA NATSUOMATSUBAYASHI TAKUKAMIMURA AKIHIROKANDA KIYOUTAROUKUMANO TAKUSHI
    • E01C1/04E01D19/02E01D21/00E01D21/08
    • PROBLEM TO BE SOLVED: To provide a method of constructing an approach section of a grade separation road, according to which traffic lane regulations are reduced during a construction period.
      SOLUTION: According to the method, a vertically expandable expansion leg 30 is arranged at a location that is spaced away from a pier 10 at a terminal of an elevated portion, in an extending direction of an elevated road, and after expanding the expansion leg 30 to a height equal to that of the pier 10, an approach girder 20 is erected between upper surfaces of the pier 10 and the expansion leg 30, followed by fixing a pier 10-side end of the approach girder 20 to a hinge 15 arranged on an upper edge of the pier 10. Thereafter by contracting the expansion leg 30 bearing a lower surface of the approach girder 20, the approach girder 20 is rotated about the hinge 15, and the approach girder 20 is lowered until an anti-pier 10-side end thereof abuts on a lower road 1, to thereby construct the approach section. Therefore most of the construction procedure is carried out on areas over the lower road 1, and during execution of the construction procedure, the lower road 1 is available, to thereby reduce the traffic lane regulations during the construction period.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种构建分级道路的进场部分的方法,根据该方法在施工期间减少了行车道规定。 解决方案:根据该方法,在高架道路的延伸方向上,在升高部分的端部处,与在距离高架道路的延伸方向上的码头10间隔开的位置处布置有可扩张的膨胀腿30, 膨胀腿30到与墩10的高度相等的高度,在墩10的上表面和膨胀腿30之间竖立一个接近梁20,然后将接近梁20的墩10侧端固定到铰链 此后,通过使承载有进入梁20的下表面的膨胀腿30收缩,接近梁20围绕铰链15旋转,并且进入梁20降低, 码头10侧端部邻接在下路1上,从而构成接近部。 因此,大部分施工程序是在下一级道路1区域进行的,施工程序执行期间,可以使用下层道路1,从而在施工期间减少行车道规定。 版权所有(C)2007,JPO&INPIT
    • 3. 发明专利
    • Joint structure of bridge pier and cross beam and construction method for bridge
    • 桥梁桥梁结构与桥梁结构及桥梁施工方法
    • JP2007032232A
    • 2007-02-08
    • JP2005221539
    • 2005-07-29
    • Kawatetsu Kyoryo Tekko KkMaeda Corp前田建設工業株式会社川鉄橋梁鉄構株式会社
    • AKASAKA YUJIHARA NATSUOMATSUBAYASHI TAKUKAMIMURA AKIHIROKANDA KIYOUTAROUKUMANO TAKUSHI
    • E01D21/00E01D1/00E01D2/04E01D19/02
    • PROBLEM TO BE SOLVED: To provide a joint structure of a bridge pier and a cross beam which facilitates construction.
      SOLUTION: This joint structure connects the bridge pier 30 to the cross beam 10. The bridge pier 30 is formed of a steel framed reinforced concrete from the upper part of which the upper ends of a plurality of steel frames 31 are projected. The cross beam 10 is formed into a frame shape by a plurality of girders 11 arranged parallel with each other and lateral plates 14 connecting the adjacent girders 11 to each other. The internal space of the cross beam is partitioned into a plurality of cell chambers 21, 22 by the girders and the lateral plates. Several quantity of steel frames 31 are inserted into at least one cell chamber 21, and a concrete is filled therein. To insert several quantity of steel frames 31 into one cell chamber 21, the cell chamber 21 can be largely formed and accordingly working in the cell chamber 21 can be facilitated.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种有利于施工的桥墩和横梁的接合结构。 解决方案:该接头结构将桥墩30连接到横梁10.桥墩30由钢框架钢筋混凝土形成,其上部由多个钢框架31的上端突出。 横梁10由彼此平行配置的多个梁11和将相邻的梁11彼此连接的侧板14形成为框架形状。 横梁的内部空间由梁和侧板分隔成多个单元室21,22。 将多个钢框架31插入到至少一个电池室21中,并将混凝土填充在其中。 为了将多个钢框架31插入一个电池室21中,可以大量地形成电池室21,从而可以容易地在电池室21中工作。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Construction method of concrete floor slab of composite floor slab bridge, and form structure
    • 复合地板桥梁混凝土板的构造方法及其结构
    • JP2006118191A
    • 2006-05-11
    • JP2004306558
    • 2004-10-21
    • Kawatetsu Kyoryo Tekko KkMaeda Corp前田建設工業株式会社川鉄橋梁鉄構株式会社
    • KOBAYASHI HIROYUKIKAMIMURA AKIHIROKANDA KIYOUTAROUAKASAKA YUJIHARA NATSUO
    • E01D21/00E01D2/04E01D19/12
    • PROBLEM TO BE SOLVED: To provide a method of constructing a concrete floor slab of a hollow type composite floor slab bridge, and a form structure for use in the method.
      SOLUTION: This hollow type composite floor slab bridge comprises juxtaposed main girders of T-shaped steel, a bottom steel plate 4 which is mounted between lower end surfaces of webs 2 of the main girders 1, and the concrete floor slab 9 wherein upper parts of the flange section 3 and web 2 of the main girder 1 are embedded. In the composite floor slab bridge, a space is provided between the floor slab 9 and the steel plate 4. In this method for constructing the floor slab 9 of the hollow type composite floor slab bridge, an angle 6 is mounted on a height-direction intermediate part of the web 2 of the main girder 1 via a bolt and the like 5 along the longitudinal direction of the main girder 1; a beam material 7 is laid in a suspended state between the angle 6 and an angle 6 which is attached to the web 2 facing the main girder 1 arranged adjacently to the angle 6; form plywood 8 is laid on the beam material; concrete 9 is placed on the form plywood 8; after the concrete 9 is hardened, the bolt and the like 5 are detached; and the angle 6, the beam material 7 and the form plywood 8 are removed.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种中空型复合地板桥梁的混凝土楼板的构造方法以及该方法中使用的形式结构。

      解决方案:该中空型复合地板桥梁包括T形钢的并置主梁,安装在主梁1的腹板2的下端表面之间的底部钢板4和混凝土楼板9,其中 主梁1的上部部分和主梁1的腹板2被嵌入。 在复合地板桥梁中,在地板坯9与钢板4之间设置有空间。在这种中空型复合地板桥式桥面板的构造方法中,将角度6安装在高度方向 主梁1的腹板2的中间部分沿着主梁1的纵向方向经由螺栓等5; 梁6材料7在角度6和角度6之间处于悬挂状态,该角度6附接到面向相邻角度6设置的主梁1的腹板2; 形成胶合板8放置在梁材料上; 混凝土9放置在胶合板8的形式上; 在混凝土9硬化之后,拆下螺栓等; 并且角度6,梁材料7和成形胶合板8被去除。 版权所有(C)2006,JPO&NCIPI

    • 5. 发明专利
    • Sleeve for use at viaduct bearing part, and method of constructing viaduct bearing part by using the sleeve
    • 在VIADUCT轴承部件上使用的套筒,以及使用套筒构造VIADUCT轴承部件的方法
    • JP2008069569A
    • 2008-03-27
    • JP2006249462
    • 2006-09-14
    • Maeda Corp前田建設工業株式会社
    • HARA NATSUOYONEDA DAIKIFUKUYAMA MASANORIOSAWA TAIJITABATA MINORU
    • E01D21/00E01D19/04
    • PROBLEM TO BE SOLVED: To provide a sleeve for use at a viaduct bearing part, which dispenses with work of forming a sand mound and work of scraping out the sand mound for removing the same, and contributes to improved workability, and to provide a method of constructing a viaduct bearing part using the sleeve.
      SOLUTION: The method of constructing the viaduct bearing part which bears a lower structure-side abutment 1 and an upper structure-side girder portion 2 in a manner ensuring movability, by using the sleeve, is composed of: a step of inserting a sleeve portion 3a of the sleeve 3 with a flange into a bearing hole 2a from a lower surface of the girder portion 2 to fix the sleeve 3 with the flange to the girder portion 2; a step of inserting a rod-like shaft portion 4 of the abutment 1 into the bearing hole 2a formed in the girder portion 2 and the sleeve 3 with the flange; and a step of filling a gap between the bearing hole 2a and the sleeve portion 3a with mortar.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于高架桥承载部件的套筒,其不需要形成沙丘的工作,以及刮除砂砾以除去其中的工作,并且有助于提高可加工性,并且 提供使用套筒构造高架桥支承部件的方法。 解决方案:通过使用套筒,以确保可移动性的方式构造承载下部结构侧基台1和上部结构侧梁部2的高架桥支承部件的方法包括: 套筒3的套筒部分3a,其具有从大梁部分2的下表面到凸缘的凸缘,以将具有凸缘的套筒3固定到梁部分2; 将基台1的棒状轴部4插入到形成在梁部2的轴承孔2a和套筒3中的凸缘的步骤; 以及用砂浆填充轴承孔2a和套筒部3a之间的间隙的步骤。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Method of constructing rigid-frame viaduct, and precast form
    • 构造刚体框架的方法和预制形式
    • JP2008025206A
    • 2008-02-07
    • JP2006198988
    • 2006-07-21
    • Maeda Corp前田建設工業株式会社
    • HARA NATSUOYONEDA DAIKIFUKUYAMA MASANORIOSAWA TAIJITABATA MINORU
    • E01D21/00
    • PROBLEM TO BE SOLVED: To provide a method of constructing a rigid-frame viaduct, in which installation work of supports for supporting an overhanging portion is carried out quickly and with good accuracy, and construction work can be safely and easily carried out even if installation lots for scaffolding and temporary supports cannot be secured, and to provide a precast form.
      SOLUTION: An RC slab of the rigid-frame viaduct includes an overhanging portion overhanging in a width direction of the rigid-frame viaduct and having an inclined surface on a bottom portion, and the method of constructing the rigid-frame viaduct is provided for forming the RC slab including the overhanging portion by using the precast form 5, and composed of the following steps. In the inclined surface positioning step, before setting the precast form 5, support members 11, 12 having heights different from each other so as to conform to the inclined surface of the overhanging portion, are set side by side in the width direction, and thus positioning of the inclined surface of the precast form 5 is achieved. In the form setting step, the precast form 5 is set on the positioned support members 11, 12, such that the inclined surface matches with the same.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种构造刚性框架高架桥的方法,其中快速且准确地进行用于支撑悬伸部分的支撑件的安装工作,并且可以安全和容易地进行施工作业 即使不能确保脚手架和临时支撑的安装批次,也可以提供预制形式。 解决方案:刚性框架高架桥的RC板包括在刚性框架高架桥的宽度方向上悬伸并且在底部具有倾斜表面的突出部分,并且构造刚性框架高架桥的方法是 通过使用预制件5形成包括悬伸部分的RC板,并由以下步骤组成。 在倾斜面定位工序中,在设置预制件5之前,在宽度方向上并排设置具有彼此不同的高度的伸出部的倾斜面的支承部件11,12, 实现了预制式5的倾斜表面的定位。 在形状设定步骤中,将预制件5设置在定位的支撑构件11,12上,使得倾斜表面与其一致。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Reinforced concrete member
    • 加固混凝土构件
    • JP2007085132A
    • 2007-04-05
    • JP2005278047
    • 2005-09-26
    • Kochi Univ Of TechnologyMaeda Corp前田建設工業株式会社学校法人高知工科大学
    • MISHIMA TETSUYAHARA NATSUOYONEDA DAIKISHIMA HIROSHI
    • E04C3/34E04C3/20
    • PROBLEM TO BE SOLVED: To improve the plastic deformation performance of reinforced concrete members by expanding plastic hinge regions P1-3. SOLUTION: In the reinforced concrete member which is subjected to bending forces when external forces are applied, yield bending proof stress R1 is changed over a predetermined range in the axial direction. The distribution of this yield bending proof stress R1 is adjusted to the distribution of the bending moment Mr1 generated when the reinforced concrete member begins to have bending yield. The reinforced concrete member will evenly yield and be plasticized over the predetermined range when it is bent and causes the bending moment beyond the yield bending proof stress R1 (e.g., the bending moment Mu1 at final time). And the energy of external forces applied is absorbed during the process when the reinforced concrete member is plasticized over the predetermined range (i.e., the plastic hinge range P1) and reaches the final conditions. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过扩大塑料铰链区域P1-3来提高钢筋混凝土构件的塑性变形性能。 解决方案:在施加外力时受到弯曲力的钢筋混凝土构件中,屈服弯曲应力R1在轴向上改变预定范围。 该屈服弯曲应力R1的分布被调整为当钢筋混凝土构件开始弯曲屈服时产生的弯矩Mr1的分布。 当钢筋混凝土构件弯曲时,钢筋混凝土构件将在预定范围内均匀地产生并塑化,并使弯矩超过屈服弯曲应力R1(例如最终时刻的弯矩Mu1)。 并且当钢筋混凝土构件在预定范围(即,塑性铰链范围P1)上塑化并且达到最终条件时,施加的外力的能量在该过程期间被吸收。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Reinforcement method of piled pier, reinforcement structure, and piled pier
    • 钢筋混凝土加固结构和加固桩的加固方法
    • JP2006125152A
    • 2006-05-18
    • JP2004318359
    • 2004-11-01
    • Maeda Corp前田建設工業株式会社
    • HARA NATSUOFUNAHASHI MASASHIMIWA TOSHIHIKOTAKEOKA SHOJI
    • E01D15/24E01D22/00E02B3/10
    • PROBLEM TO BE SOLVED: To provide a reinforcement method of piled piers capable of improving both yield strength of piled piers and deformation performance of piled piers and improving earthquake-resisting performance and to provide a reinforcement structure and a piled pier.
      SOLUTION: In the reinforcement method of piled piers, brace members 13 are provided between piles 11 and upper materials 12. Damper members 14 are provided between the brace members 13 and the upper materials 12, between the brace members 13 and the piles 11, or both. The damper members 14 are made to yield to a first-stage earthquake having a prescribed magnitude, and the brace members 13 are made to yield to a second-stage earthquake larger than the first-stage earthquake.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够提高堆墩屈服强度和堆墩变形性能的堆墩加固方法,提高抗震性能,提供加固结构和堆墩。 解决方案:在桩墩的加固方法中,支柱构件13设置在桩11和上部材料12之间。阻尼构件14设置在支撑构件13和上部材料12之间,支撑构件13和桩之间 11,或两者。 阻尼器构件14被制造成具有规定大小的第一级地震,并且使支撑构件13屈服于比第一级地震更大的第二级地震。 版权所有(C)2006,JPO&NCIPI