JP2005200849A - Method and device for filling concrete in concrete filled steel pipe column - Google Patents
Method and device for filling concrete in concrete filled steel pipe column Download PDFInfo
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Abstract
Description
本発明は、コンクリート鋼管柱造、即ち鋼管柱内にコンクリートを充填して構築物の柱となす工法におけるコンクリート充填鋼管柱のコンクリート充填方法及びその装置に関する。 TECHNICAL FIELD The present invention relates to a concrete filling method and apparatus for a concrete-filled steel pipe column in a concrete steel pipe column structure, that is, a method of filling concrete in a steel pipe column to form a pillar of a structure.
一般に、ＲＣ造、ＳＲＣ造に比べ耐震性能、耐火性能に優れた特性を発揮するＣＦＴ造（コンクリート充填鋼管柱造）が開発されている（例えば非特許文献１）。この工法は、鋼管柱内にコンクリートを充填した構造形式であり、コンクリートと鋼管柱の相互拘束効果により軸圧縮耐力・曲げ耐力及び変形性能が増大する。この相互拘束効果を発揮させるためには、均質・密実かつ隙間のないコンクリートの充填と所要の強度発現及び鋼管柱とコンクリートの一体化を保証することが必要となる。
このＣＦＴ造の施工におけるコンクリートの充填方法として、落とし込み充填工法及び圧入工法がある。落とし込み充填工法は、図７に示すように柱頭部から鋼管柱３1内にトレミー管３１又はフレキシブルホースを使用してコンクリートを鋼管柱底部から順次上方に向けて打ち上げる方法であり、落とし込み高さが比較的低い場合に用いられている。
In general, a CFT structure (concrete-filled steel pipe column structure) has been developed that exhibits characteristics superior to earthquake resistance and fire resistance compared to RC structure and SRC structure (for example, Non-Patent Document 1). This construction method is a structure type in which concrete is filled in a steel pipe column, and the axial compression strength, bending strength and deformation performance increase due to the mutual restraining effect between the concrete and the steel pipe column. In order to exert this mutual restraining effect, it is necessary to ensure that the concrete is filled with homogeneity, solidness and no gap, the required strength is exhibited, and that the steel pipe column and the concrete are integrated.
As a concrete filling method in this CFT construction, there are a drop filling method and a press-fitting method. As shown in FIG. 7, the drop filling method is a method in which concrete is driven upward from the bottom of the steel pipe column using the tremy pipe 31 or flexible hose into the steel pipe column 31 from the column head, and the drop height is compared. It is used when it is low.
圧入工法は、図８に示すように鋼管柱３０の低部に圧入口３２を形成しておきコンクリートポンプ３３を使用して鋼管柱底部からコンクリートを打ち上げる方法である。この圧入工法には高流動性のコンクリートが使用され、コンクリート打設高さが高い場合でも利用できる。 The press-fitting method is a method in which a concrete inlet 33 is formed in the lower part of the steel pipe column 30 and concrete is driven from the bottom of the steel pipe column using a concrete pump 33 as shown in FIG. This press-fit method uses high-fluidity concrete and can be used even when the concrete placement height is high.
このような方法を使用することにより、打設時におけるコンクリートの分離を防止してコンクリートの品質を維持させるとともに、柱−梁仕口部とブレース接合部にダイアフラムが設けられている鋼管柱への充填に際し、ダイアフラム下の空隙発生を防止させるようにしている。
上述した従来の技術における従来の落とし込み工法は、鋼管柱及び梁・床を構築した後に、柱上部よりホースあるいは管からなるコンクリート導入筒を挿入し、打ち込み高さ、即ち打設されたコンクリートの上面とコンクリート導入筒の下端との距離を１ｍ以内程度に調整しつつコンクリートを落とし込み充填するものであるが、この場合、打ち込み高さ確保のために、揚重機を占有する必要があり、またコンクリートバケットを揚重機で揚重して打設するため、工程の遅延、コストの増大を招くことになるという問題がある。 In the conventional dropping method in the above-described conventional technique, a steel pipe column, a beam and a floor are constructed, and then a concrete introduction cylinder consisting of a hose or a pipe is inserted from the upper part of the column, and the driving height, that is, the top surface of the concrete placed. The concrete is dropped and filled while adjusting the distance between the pipe and the lower end of the concrete introduction tube to within 1 m. In this case, it is necessary to occupy the lifting machine to secure the driving height, and the concrete bucket Is lifted by a lifting machine, and there is a problem in that the process is delayed and the cost is increased.
本発明はこのような従来の落とし込み工法の問題に鑑み、コンクリートの落とし込み打設に際しては揚重機を占有せず、コンクリートの打ち込みと並行して揚重機を使用した他の作業を実施することができるようにして作業効率を向上させることができるコンクリート充填鋼管柱のコンクリート充填方法及びその装置の提供を目的としてなされたものである。 In view of the problems of the conventional dropping method, the present invention does not occupy the lifting machine when casting concrete and can perform other operations using the lifting machine in parallel with the concrete driving. Thus, the present invention has been made for the purpose of providing a concrete filling method and apparatus for a concrete-filled steel pipe column that can improve work efficiency.
上述の如き従来の問題を解決し、所期の目的を達成するための請求項１に記載の発明の特徴は、略鉛直状に立設された中空の鋼管柱内にコンクリート誘導落下させる誘導管を縦向きに挿入し、該誘導管の下端部開口の高さをコントロールしつつ、前記鋼管柱内にコンクリートを落とし込み充填するコンクリート充填鋼管柱のコンクリート充填方法において、前記誘導管として複数の単管を軸方向にスライド可能なように嵌合させて長手方向に伸縮可能な構造のものを使用するとともに該誘導管にその下端開口高さをコントロールする下端開口部昇降機構を備えておき、該誘導管を前記鋼管柱内に挿入し、該鋼管柱に対して誘導管の上端側を固定状態としてコンクリート充填作業を行い、そのコンクリートの鋼管柱内充填高さに応じて前記下端開口部昇降機構により下端開口の高さをコントロールすることにある。 In order to solve the conventional problems as described above and achieve the intended object, the feature of the invention described in claim 1 is that a guide pipe that induces concrete to fall into a hollow steel pipe column standing substantially vertically. In the concrete filling method of a concrete-filled steel pipe column in which concrete is dropped and filled into the steel pipe column while controlling the height of the opening at the lower end of the guide pipe in the vertical direction, a plurality of single pipes are used as the guide pipe The guide pipe is provided with a lower end opening raising / lowering mechanism for controlling the height of the lower end opening of the guide pipe. Insert a pipe into the steel pipe column, perform concrete filling work with the upper end side of the induction pipe fixed to the steel pipe column, and the lower end according to the filling height of the concrete in the steel pipe column It is to control the height of the lower end opening by the mouth elevating mechanism.
請求項２に記載の発明の特徴は、上記請求項１の構成に加え、下端開口部昇降機構を手動式とし、手動によって下端開口高さをコントロールすることにある。 The feature of the invention described in claim 2 is that, in addition to the configuration of claim 1, the lower end opening raising / lowering mechanism is manually operated and the lower end opening height is controlled manually.
請求項３に記載の発明の特徴は、複数の単管を使用し、互いに隣り合う単管間において一方が他方内に嵌り合って互いに軸方向にスライド可能なように連結することにより単管状の伸縮自在な誘導管を構成し、該誘導管にその上端側において下端開口部の単管を昇降操作できる下端開口部昇降機構を備え、該誘導管を略鉛直状に立設された鋼管柱内にその上端開口より挿入して垂下させた状態で前記下端開口部昇降機構により前記下端開口を昇降操作できるようにしてなるコンクリート充填鋼管柱のコンクリート充填装置にある。 The feature of the invention described in claim 3 is that a plurality of single pipes are used, and one of the single pipes adjacent to each other is fitted into the other and connected so as to be slidable in the axial direction. A telescopic guide pipe is constructed, and the guide pipe is provided with a lower end opening raising / lowering mechanism capable of raising and lowering a single pipe at the lower end opening on the upper end side of the guide pipe. In the concrete filling apparatus for the concrete-filled steel pipe column, the lower end opening can be moved up and down by the lower end opening raising / lowering mechanism in a state where the lower end opening is lowered from the upper end opening.
請求項４に記載の発明の特徴は、上記請求項３の構成に加え、下端開口部昇降機構は、前記誘導管の上部に備えた巻き取り機構と、下端が最下端部の単管に固定され、上端側が前記巻き取り機構によって巻き取られる引張線材とからなることにある。 According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the lower end opening raising / lowering mechanism includes a winding mechanism provided at an upper portion of the guide pipe, and a lower end fixed to a single pipe having a lowermost end. And the upper end side consists of a tensile wire wound up by the winding mechanism.
請求項５に記載の発明の特徴は、上記請求項３又は４の構成に加え、巻き取り機構は手動のウインチであることにある。
請求項６に記載の発明の特徴は、上記請求項３，４又は５の構成に加え、誘導管の上端に漏斗状のコンクリート投入用ホッパーを備えたことにある。
According to a fifth aspect of the present invention, in addition to the configuration of the third or fourth aspect, the winding mechanism is a manual winch.
A feature of the invention described in claim 6 is that, in addition to the configuration of claim 3, 4 or 5, the funnel-shaped concrete charging hopper is provided at the upper end of the guide pipe.
本発明においては、鋼管柱内にコンクリートを投入するための誘導管として複数の単管を軸方向にスライド可能なように嵌合させて長手方向に伸縮可能な構造のものを使用するとともに該誘導管にその下端開口高さをコントロールする下端開口部昇降機構を備えておき、該誘導管を前記鋼管柱内に挿入し、該鋼管柱に対して誘導管の上端側を固定状態としてコンクリート充填作業を行い、そのコンクリートの鋼管柱内充填高さに応じて前記下端開口部昇降機構により下端開口の高さをコントロールするようにしたことにより、コンクリートの充填作業に際しては、誘導管の下端開口の高さ調整のために誘導管全体を昇降可能なように吊り下げておく必要が無くなり、また、コンクリート圧送ポンプからのホース先端から誘導管の上端開口に直接コンクリートを投入することが可能なようになり、揚重機を使用せずにコンクリート充填作業ができる。 In the present invention, as a guide pipe for putting concrete into a steel pipe column, a plurality of single pipes are fitted so as to be slidable in the axial direction and used to have a structure that can be expanded and contracted in the longitudinal direction. The pipe is provided with a lower end opening raising / lowering mechanism for controlling the lower end opening height, the guide pipe is inserted into the steel pipe column, and the upper end side of the guide pipe is fixed with respect to the steel pipe column. And the height of the lower end opening is controlled by the lower end opening raising / lowering mechanism according to the filling height of the concrete in the steel pipe column. It is no longer necessary to suspend the entire guide pipe so that it can be moved up and down to adjust the height, and the hose tip from the concrete pressure pump is directly connected to the top opening of the guide pipe. It becomes capable of introducing concrete can concrete filling operation without using a crane.
また、下端開口部昇降機構を手動式とし、手動によって下端開口高さをコントロールするようにすることにより、コンクリート充填高さを目視により確認しながら手動によって作業が可能となる。 Further, the lower end opening raising / lowering mechanism is manually operated, and the lower end opening height is controlled manually, so that the work can be performed manually while checking the concrete filling height visually.
更に、下端開口部昇降機構を、前記誘導管の上部に備えた巻き取り機構と、下端が最下端部の単管に固定され、上端側が前記巻き取り機構によって巻き取られる引張線材とをもって構成し、またその巻き取り機構として手動のウインチを使用することにより、簡単な機構によって下端開口部の昇降機構が構成される。 Further, the lower end opening raising / lowering mechanism is constituted by a winding mechanism provided at the upper part of the guide pipe, and a tensile wire rod having a lower end fixed to a single pipe at the lowermost end and wound at the upper end side by the winding mechanism. Further, by using a manual winch as the winding mechanism, a lifting mechanism for the lower end opening is configured by a simple mechanism.
更に、誘導管の上端に漏斗状のコンクリート投入用ホッパーを備えることにより、コンクリートの投入が容易となる。 Furthermore, by providing a funnel-shaped concrete charging hopper at the upper end of the guide pipe, it becomes easy to input the concrete.
次に本発明の実施の形態を図面に示した実施例に基づいて説明する。先ず、本発明に係るコンクリート充填装置を図１〜図３について説明する。図中符号１は誘導管、２は誘導管の上端部に固定した漏斗状のホッパー、３は誘導管の下端開口部外周に固定した下端補強リングである。 Next, embodiments of the present invention will be described based on examples shown in the drawings. First, a concrete filling apparatus according to the present invention will be described with reference to FIGS. In the figure, reference numeral 1 is a guide tube, 2 is a funnel-like hopper fixed to the upper end of the guide tube, and 3 is a lower end reinforcing ring fixed to the outer periphery of the lower end opening of the guide tube.
誘導管１は複数、本実施例では４本の単管１０ａ〜１０ｄを使用している。これらの各単管は長さがそれぞれ約２ｍ、外径は最大径の最下端部単管が１３０ｍｍ程度のものを使用している。各単管は互いに隣り合う単管間において、上側のものが下側内に嵌り合う形状に形成され、互いに嵌り合って軸方向にスライドできるようになっている。また、互いに隣り合う単管間は、図３に示すように、最も伸びた状態で両者間が抜け止めされるように下側単管の上端内周及び上側単管の下端外周に抜け止め用のフランジ１１ａ，１１ｂが突設されている。 A plurality of induction tubes 1 are used, and in this embodiment, four single tubes 10a to 10d are used. Each of these single pipes has a length of about 2 m, and the outer diameter has a maximum diameter of the lowermost single pipe of about 130 mm. Each single pipe is formed in a shape in which the upper one fits in the lower side between the single pipes adjacent to each other, and can fit in each other and slide in the axial direction. Also, as shown in FIG. 3, between adjacent single pipes, the upper single pipe and the upper single pipe are used for retaining the lower end of the upper single pipe so that the two pipes are prevented from coming out in the most extended state. The flanges 11a and 11b are projected.
また、互いに隣り合う単管間において、両者が最も短縮された状態で、上側の単管の下端が抜け出さないように抜け止め突起１２が下側単管の下端部内周に突設されている。 Further, between the adjacent single tubes, a retaining protrusion 12 is provided on the inner periphery of the lower end of the lower single tube so that the lower end of the upper single tube does not come out in a state where both are shortened most.
このようにして誘導管１は、最上端部の単管１０ａを支持して垂下させることにより、図１に示すように自重で各単管間が最も伸張した状態となり、全体が最も長い状態となる。 In this way, the guide tube 1 supports the uppermost single tube 10a and hangs down, whereby, as shown in FIG. Become.
また、一方で、最下端部の単管１０ｄを外力によって上昇させることにより、最下端部の単管１０ｄから順に持ち上げられ、図２に示すようにすべての単管間が最も短縮され、全体が最も短い状態となる。 On the other hand, by raising the lowermost single pipe 10d by an external force, the lowermost single pipe 10d is lifted in order from the lowermost single pipe 10d, and as shown in FIG. Shortest state.
ホッパー２は、誘導管１の最上部単管１０ａの上端部に上端補強リング１３を介して固定されている。 The hopper 2 is fixed to the upper end portion of the uppermost single tube 10 a of the guide tube 1 via an upper end reinforcing ring 13.
誘導管１には、最下端の単管１０ｄを上下に移動させることによって下端開口を上下動させる下端開口部昇降機構が備えられている。この機構は、誘導管１の左右両側に沿わせて張設したワイヤーロープからなる一対の引張線材１４，１４と、手動で各引張線材１４，１４の一端側をそれぞれ巻き取るウインチ１５，１５とから構成されている。 The guide pipe 1 is provided with a lower end opening raising / lowering mechanism that moves the lower end opening up and down by moving the lowermost single pipe 10d up and down. This mechanism includes a pair of tensile wires 14 and 14 made of wire ropes stretched along the left and right sides of the guide tube 1, and winches 15 and 15 for manually winding one end of each of the tensile wires 14 and 14, respectively. It is composed of
ウインチ１５はそれぞれホッパー２の上端部外面に固定されており、引張線材１４はその上端側がウインチ１５に巻き取られるようにし、下端側を滑車１６に掛け回して誘導管１の側面に沿わせ、下端を最下端部の単管１０ｄの補強リング３に固定している。これによって、両ウインチ１５によって引張線材１４を巻き取り又は巻き戻して繰り出し長さを変更することにより、最下端の単管１０ｄの高さが調整されるようになっている。 Each winch 15 is fixed to the outer surface of the upper end portion of the hopper 2, and the upper end side of the tensile wire 14 is wound around the winch 15, and the lower end side is hung on the pulley 16 to be along the side surface of the guide tube 1, The lower end is fixed to the reinforcing ring 3 of the single tube 10d at the lowermost end. As a result, the height of the lowermost single tube 10d is adjusted by winding or unwinding the tensile wire 14 with both winches 15 and changing the feeding length.
次に、このように構成されるコンクリート打設装置を使用した本発明に係るコンクリート打設方法について説明すると、図４に示すように落とし込み工法によってコンクリートを充填しようとする鋼管柱２０を縦向きに立設した後、その上端より揚重機を使用して、又は人力によって誘導管１部分を鋼管柱２０内に挿入し、ホッパー２の下側を鋼管柱２０に対して必要な支持部材２１を使用して支持させる。 Next, the concrete placing method according to the present invention using the concrete placing apparatus constructed as described above will be described. As shown in FIG. 4, the steel pipe column 20 to be filled with concrete by the dropping method is placed vertically. After standing up, the induction pipe 1 part is inserted into the steel pipe column 20 by using a lifting machine from the upper end or by human power, and the support member 21 necessary for the steel pipe column 20 is used on the lower side of the hopper 2. And support.
このようにして誘導管１の上端側を鋼管柱２０に対して移動しない固定的状態とし、ウインチ１５を手動操作して誘導管１下端部単管１０ｄの下端開口、即ちコンクリート打設口の高さを、鋼管柱２０のコンクリート打設面に合わせて必要な高さとなるように調整する。 In this way, the upper end side of the guide tube 1 is fixed so as not to move with respect to the steel pipe column 20, and the winch 15 is manually operated to lower the lower end opening of the lower end single tube 10d of the guide tube 1, that is, the height of the concrete placing port. The height is adjusted to a required height according to the concrete placement surface of the steel pipe column 20.
この状態でホッパー２内にコンクリート圧送ポンプからのホース２２からコンクリートを投入する。このようにして鋼管柱２０内の底部に誘導管１を通してコンクリートを打設し、その打設に伴うコンクリート打設上面２３の高さの上昇に合わせてウインチ１５により引張線材１４を巻き取り、図５に示すように最下端の単管１０ｄを上昇させ、その下端のコンクリート打設口の高さを、コンクリート打設上面２３の高さに合わせて必要な高さに調節しつつコンクリートの打設を続行させる。 In this state, concrete is poured into the hopper 2 from the hose 22 from the concrete pump. In this way, concrete is placed through the induction tube 1 at the bottom of the steel pipe column 20, and the tensile wire 14 is wound up by the winch 15 in accordance with the rise in the height of the concrete placement upper surface 23 accompanying the placement. As shown in FIG. 5, the lowermost single pipe 10d is raised, and the concrete placement is adjusted while adjusting the height of the concrete placement opening at the lower end to the required height according to the height of the concrete placement upper surface 23. To continue.
このようにして図６に示すように誘導管１が最も短縮された状態に至るまでコンクリートを打設し、１本の鋼管柱２０に対するコンクリート充填を終了した後、装置全体を人力又は揚重機を使用して次の鋼管柱２０上に移動させて前述と同様に設置し、誘導管１を伸張させて下端のコンクリート打設口高さを調整し、前述と同様のコンクリート充填作業を行う。 In this way, as shown in FIG. 6, the concrete is placed until the induction pipe 1 reaches the most shortened state, and after filling the concrete into one steel pipe column 20, the whole apparatus is operated by human power or a lifting machine. It is used and moved onto the next steel pipe column 20 and installed in the same manner as described above, the guide pipe 1 is extended to adjust the height of the concrete placement port at the lower end, and the same concrete filling operation as described above is performed.
尚、上述した装置及び方法では、下端開口部昇降機構に手動ウインチを使用しているが、この他鋼管柱上部で下端開口を上下に移動操作できる他の機構を使用することができ、また手動による機構に限らず、電動機を使用して作動させる例えば電動ウインチを使用したものであってもよい。 In the above-described apparatus and method, a manual winch is used for the lower end opening raising / lowering mechanism, but other mechanisms capable of moving the lower end opening up and down at the upper part of the steel pipe column can be used. For example, an electric winch that is operated using an electric motor may be used.
１ 誘導管
２ ホッパー
３ 下端補強リング
１０ａ〜１０ｄ 単管
１１ａ，１１ｂ フランジ
１２ 抜け止め突起
１３ 上端補強リング
１４ 引張線材
１５ ウインチ
１６ 滑車
２０ 鋼管柱
２１ 支持部材
２２ ホース
２３ コンクリート打設上面
DESCRIPTION OF SYMBOLS 1 Guide pipe 2 Hopper 3 Lower end reinforcement ring 10a-10d Single pipe 11a, 11b Flange 12 Retaining prevention protrusion 13 Upper end reinforcement ring 14 Tensile wire 15 Winch 16 Pulley 20 Steel pipe pillar 21 Support member 22 Hose 23 Concrete placement upper surface
Claims (6)
前記誘導管として複数の単管を軸方向にスライド可能なように嵌合させて長手方向に伸縮可能な構造のものを使用するとともに該誘導管にその下端開口高さをコントロールする下端開口部昇降機構を備えておき、該誘導管を前記鋼管柱内に挿入し、該鋼管柱に対して誘導管の上端側を固定状態としてコンクリート充填作業を行い、そのコンクリートの鋼管柱内充填高さに応じて前記下端開口部昇降機構により下端開口の高さをコントロールすることを特徴としてなるコンクリート充填鋼管柱のコンクリート充填方法。 A concrete pipe is inserted into the steel pipe column while controlling the height of the opening at the lower end of the guide pipe while vertically inserting a guide pipe that causes concrete to fall into a hollow steel pipe column that is erected in a substantially vertical shape. In the concrete filling method of the concrete-filled steel pipe column to be filled,
As the guide pipe, a plurality of single pipes are fitted so as to be slidable in the axial direction and can be expanded and contracted in the longitudinal direction, and the lower end opening of the guide pipe is controlled to control the lower end opening height. A mechanism is provided, the guide pipe is inserted into the steel pipe column, concrete filling work is performed with the upper end side of the guide pipe fixed to the steel pipe column, and the concrete is filled in the steel pipe column according to the filling height. A concrete filling method for a concrete-filled steel pipe column, characterized in that the height of the lower end opening is controlled by the lower end opening raising / lowering mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004005793A JP4192269B2 (en) | 2004-01-13 | 2004-01-13 | Concrete filling method for concrete filled steel pipe columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004005793A JP4192269B2 (en) | 2004-01-13 | 2004-01-13 | Concrete filling method for concrete filled steel pipe columns |
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| Publication Number | Publication Date |
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| JP2005200849A true JP2005200849A (en) | 2005-07-28 |
| JP4192269B2 JP4192269B2 (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004005793A Expired - Fee Related JP4192269B2 (en) | 2004-01-13 | 2004-01-13 | Concrete filling method for concrete filled steel pipe columns |
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| CN103321419A (en) * | 2013-06-25 | 2013-09-25 | 合肥建工集团有限公司 | Seamless beam-to-column connection cavity full-grouting concrete extrusion hopper |
| CN103334590A (en) * | 2013-06-25 | 2013-10-02 | 中国十七冶集团有限公司 | Large-size steel pipe column concrete construction device and construction method |
| CN103470046A (en) * | 2013-09-23 | 2013-12-25 | 中国建筑第二工程局有限公司 | Concrete pouring device and method for ultrahigh steel pipe concrete column by using conduit method |
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| CN115839173A (en) * | 2021-12-28 | 2023-03-24 | 中交第四公路工程局有限公司 | Concrete pouring device in concrete filled steel tubular column and construction method |
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- 2004-01-13 JP JP2004005793A patent/JP4192269B2/en not_active Expired - Fee Related
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| KR101279009B1 (en) * | 2011-05-12 | 2013-07-02 | 은석건설 주식회사 | Bored pile method |
| CN103321419A (en) * | 2013-06-25 | 2013-09-25 | 合肥建工集团有限公司 | Seamless beam-to-column connection cavity full-grouting concrete extrusion hopper |
| CN103334590A (en) * | 2013-06-25 | 2013-10-02 | 中国十七冶集团有限公司 | Large-size steel pipe column concrete construction device and construction method |
| CN103334590B (en) * | 2013-06-25 | 2015-11-04 | 中国十七冶集团有限公司 | Large Steel tubing string concrete working device and construction method |
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| CN103470046A (en) * | 2013-09-23 | 2013-12-25 | 中国建筑第二工程局有限公司 | Concrete pouring device and method for ultrahigh steel pipe concrete column by using conduit method |
| CN103526929A (en) * | 2013-09-24 | 2014-01-22 | 浙江省建工集团有限责任公司 | Super high-rise steel pipe column interior concrete pouring construction method |
| CN103526929B (en) * | 2013-09-24 | 2016-01-20 | 浙江省建工集团有限责任公司 | A kind of super high-rise steel pipe column interior concrete pouring construction method |
| CN104131704A (en) * | 2014-05-16 | 2014-11-05 | 中国建筑第四工程局有限公司 | Steel pipe column concrete lateral pouring method and steel pipe column structure used in method |
| CN105804403A (en) * | 2016-03-24 | 2016-07-27 | 中国建筑第八工程局有限公司 | Rolling ball type concrete pouring structure and method for overground large special-shaped stiff column |
| CN110005053A (en) * | 2019-04-18 | 2019-07-12 | 中南大学 | One kernel texture assembly assembling frame structure and its method of construction |
| CN110206315A (en) * | 2019-05-31 | 2019-09-06 | 五冶集团上海有限公司 | A kind of high-supported formwork frame column concrete pouring construction method |
| CN113818694A (en) * | 2021-07-16 | 2021-12-21 | 中国建筑一局(集团)有限公司 | Construction system and construction method for pouring steel pipe column without dismounting plate |
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