JPH074033A - Construction method of high projection wall form - Google Patents
Construction method of high projection wall formInfo
- Publication number
- JPH074033A JPH074033A JP14174693A JP14174693A JPH074033A JP H074033 A JPH074033 A JP H074033A JP 14174693 A JP14174693 A JP 14174693A JP 14174693 A JP14174693 A JP 14174693A JP H074033 A JPH074033 A JP H074033A
- Authority
- JP
- Japan
- Prior art keywords
- steel material
- formwork
- concrete
- shaped steel
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、大型の吹抜内部空間を
有するコンクリート構造物に好適に適用される持出し高
さの高い壁型枠の施工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a wall formwork having a high carry-out height, which is suitably applied to a concrete structure having a large blow-out internal space.
【0002】[0002]
【従来の技術】核融合施設等の大型の吹抜内部空間を有
するコンクリート構造物においては、例えば、平面45
m×75m、高さ35mの空間を2m厚の床、2m厚の
壁、1.3m厚の天井といったマスコンクリートで構成
する巨大ボックスとなっている。そのため、従来の壁の
施工にあたっては、35mの高さまで梁や床とのつなが
りが全くなく持ち出しとなり、一回のコンクリート打設
高さが4m以下のため、約10リフト分、壁だけを打継
いでいくことになる。2. Description of the Related Art In a concrete structure having a large blown-out internal space such as a nuclear fusion facility, for example, a flat surface 45
It is a huge box made of mass concrete with a floor of 2m thick, a wall of 2m thick, and a ceiling of 1.3m thick. Therefore, in the conventional construction of walls, it can be taken out up to a height of 35 m without any connection with beams or floors, and since the height of concrete pouring at one time is 4 m or less, about 10 lifts, only the wall is spliced. Will go out.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の方式においては、最下部の型枠は、1階の床から型
枠をチェーンで引っ張ったりサポートで押したりする押
し引きにより、型枠の通り(垂直度)を出すことが可能
であるが、それ以上のリフトになると、内外の足場から
の押し引きだけでは、通りは出せないし、もし出せたと
してもコンクリート打設中に傾きかけたら安全性に問題
を生じることになる。However, in the above-mentioned conventional method, the lowermost formwork is made to follow the formwork by pulling the formwork from the floor on the first floor with a chain or pushing it with a support. It is possible to raise (vertical degree), but if it is a lift higher than that, it will not be possible to pull out the street only by pushing and pulling from the inside and outside scaffolding, and even if it can be pulled out, it is safe if it leans during concrete pouring Will cause problems.
【0004】本発明は上記課題を解決するものであっ
て、型枠の建て起こしが簡単な操作で可能になるととも
に、相当高い持出し壁であっても精度良く施工できる持
出し高さの高い壁型枠の施工法を提供することを目的と
する。The present invention has been made to solve the above-mentioned problems, and enables the erecting of the formwork by a simple operation, and a wall type with a high take-out height that enables accurate construction even with a considerably high take-out wall. The purpose is to provide a frame construction method.
【0005】[0005]
【課題を解決するための手段】そのために本発明の持出
し高さの高い壁型枠の施工法は、型枠パネル1に縦端太
8および横端太9を介してH型鋼材5を固定した型枠ユ
ニット6a、6bを備え、既設のコンクリート壁4の内
外に型枠ユニット6a、6bを建込み、コンクリート3
を打設し、コンクリート養生後、型枠ユニット6a、6
bを脱型してコンクリート壁4の上部に建込むことを繰
り返す施工法であって、型枠ユニット6a、6bを建込
むに際して、H型鋼材5の下部をコンクリート壁4に調
節ボルト11により固定し、H型鋼材5の上部を連結部
材7で固定し、調節ボルト11と連結部材7とにより型
枠パネル1の垂直度を出すことを特徴とする。なお、上
記構成に付加した番号は、本発明の理解を容易にするた
めに、図面と対比させるものであり、これにより本発明
の構成が何ら限定されるものではない。Therefore, in the method of constructing a wall formwork having a high take-out height according to the present invention, an H-shaped steel material 5 is fixed to a formwork panel 1 through a vertical end thickness 8 and a lateral end thickness 9. Forming units 6a, 6b are provided, and the forming unit 6a, 6b is built inside and outside the existing concrete wall 4, and the concrete 3
After placing and curing concrete, formwork units 6a, 6
It is a construction method in which b is removed from the mold and built in the upper part of the concrete wall 4, and when building the form units 6a and 6b, the lower part of the H-shaped steel material 5 is fixed to the concrete wall 4 by the adjusting bolt 11. The upper part of the H-shaped steel material 5 is fixed by the connecting member 7, and the adjusting bolt 11 and the connecting member 7 provide the verticality of the formwork panel 1. It should be noted that the numbers added to the above-mentioned configurations are compared with the drawings in order to facilitate the understanding of the present invention, and the configurations of the present invention are not limited thereby.
【0006】[0006]
【作用】本発明においては、例えば図1に示すように、
コンクリート壁4の内外に一組の型枠ユニット6を配置
し、型枠ユニット6を構成する2本のH型鋼材5の下部
をコンクリート壁4に固定し、H型鋼材5の上部を連結
部材7で固定して型枠を建て込んだ後、コンクリート3
を打設し、(図D)養生後コンクリート壁4から型枠ユ
ニット6を解体し脱型した後、前記と同様に、既設のコ
ンクリート壁4の上部に一組の型枠ユニット6を配置
し、H型鋼材5の下部をコンクリート壁4に固定し、H
型鋼材5の上部を連結部材7で固定して型枠を建て込ん
だ(図E)後、コンクリート3を打設し(図F)、以
下、前記工程を繰り返して上方にコンクリート壁4を打
ち継いでゆく。In the present invention, for example, as shown in FIG.
A set of formwork units 6 is arranged inside and outside the concrete wall 4, the lower parts of the two H-shaped steel materials 5 constituting the formwork unit 6 are fixed to the concrete wall 4, and the upper part of the H-shaped steel material 5 is a connecting member. After fixing with 7 and building the formwork, concrete 3
(FIG. D) After curing, the formwork unit 6 is dismantled from the concrete wall 4 and removed from the mold, and then a set of formwork units 6 is placed on the existing concrete wall 4 in the same manner as above. , The lower part of the H-shaped steel material 5 is fixed to the concrete wall 4,
After fixing the upper part of the mold steel material 5 with the connecting member 7 to build the formwork (Fig. E), the concrete 3 is placed (Fig. F), and then the above-mentioned steps are repeated to drive the concrete wall 4 upward. I will continue.
【0007】[0007]
【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。図8は本発明が適用されるコンクリート構造の
1例を示し、図8(A)は建物全体の水平断面図、図8
(B)は垂直断面図である。建物Hは、例えば、平面4
5m×75m、有効内法高さ35.5mの吹抜空間を2
m厚の床、2m厚の壁、1.3m厚の天井といったマス
コンクリートで構成する巨大ボックスとなっている。打
継部Jは、平面方向に4箇所、垂直方向には最大4m毎
に10数箇所で施工される。Embodiments of the present invention will be described below with reference to the drawings. 8 shows an example of a concrete structure to which the present invention is applied, and FIG. 8 (A) is a horizontal sectional view of the entire building, and FIG.
(B) is a vertical sectional view. The building H has, for example, a plane 4
2 open spaces with 5m x 75m and effective inner height of 35.5m
It is a huge box made of mass concrete, such as an m-thick floor, a 2 m-thick wall, and a 1.3 m-thick ceiling. The joining portions J are constructed at four places in the plane direction and at a dozen places every 4 m at maximum in the vertical direction.
【0008】図1は、本発明の持出し高さの高い壁型枠
施工法の1実施例を示し、施工順序を示す概略図であ
る。先ず、最下部の1階の床上に型枠パネル1を建込
み、サポート2で型枠パネル1の通りを調節した後、コ
ンクリート3を打設し(図A)、養生後コンクリート壁
4から型枠パネル1を解体し脱型する(図B)。次に、
型枠パネル1に2本のH型鋼材5を取り付けて型枠ユニ
ット6を製作し(図C)、既設のコンクリート壁4の内
外に一組の型枠ユニット6a、6bを配置し、型枠ユニ
ット6a、6bを構成すのH型鋼材5の下部をコンクリ
ート壁4に固定し、H型鋼材5の上部を連結部材7で固
定して2段目の型枠を建て込んだ後、コンクリート3を
打設する(図D)。養生後クレーンによりコンクリート
壁4から型枠ユニット6a、6bを解体し脱型した後、
前記と同様に、既設のコンクリート壁4の上部に一組の
型枠ユニット6a、6bを配置し、H型鋼材5の下部を
コンクリート壁4に固定し、H型鋼材5の上部を連結部
材7で固定して3段目の型枠を建て込んだ(図E)後、
コンクリート3を打設する(図F)。以下、前記工程を
繰り返して上方にコンクリート壁4を打ち継いでゆく。FIG. 1 is a schematic view showing the construction sequence of one embodiment of the method for constructing a wall form having a high carrying out height according to the present invention. First, a formwork panel 1 is built on the bottom floor of the first floor, after adjusting the shape of the formwork panel 1 with a support 2, concrete 3 is placed (Fig. A), and a mold is applied from the concrete wall 4 after curing. The frame panel 1 is disassembled and demolded (Fig. B). next,
The two H-shaped steel materials 5 are attached to the formwork panel 1 to produce a formwork unit 6 (FIG. C), and a set of formwork units 6a and 6b is arranged inside and outside the existing concrete wall 4 to form the formwork. The lower portion of the H-shaped steel material 5 constituting the units 6a and 6b is fixed to the concrete wall 4, the upper portion of the H-shaped steel material 5 is fixed by the connecting member 7 to build the second-stage formwork, and then the concrete 3 (Fig. D). After dismantling the mold units 6a, 6b from the concrete wall 4 by a crane after curing and demolding,
Similarly to the above, one set of formwork units 6a and 6b is arranged on the upper part of the existing concrete wall 4, the lower part of the H-shaped steel material 5 is fixed to the concrete wall 4, and the upper part of the H-shaped steel material 5 is connected to the connecting member 7. After fixing with and building the third stage formwork (Fig. E),
Place concrete 3 (Fig. F). Hereinafter, the above steps are repeated, and the concrete wall 4 is spliced upward.
【0009】図2ないし図7は図1における型枠ユニッ
トの建込方法の1実施例を説明するための図であり、図
2は、図1(D)に対応する図であり、コンクリート壁
への型枠ユニットの建込状態を示す断面図、図3は図2
においてA方向から見た正面図である。2 to 7 are views for explaining one embodiment of the method of installing the form unit in FIG. 1, and FIG. 2 is a view corresponding to FIG. 1 (D), concrete wall. FIG. 3 is a cross-sectional view showing a state in which the formwork unit is installed in the mold.
FIG. 4 is a front view seen from the direction A in FIG.
【0010】図2および図3において、コンクリート壁
4の内側および外側には、型枠ユニット6aと型枠ユニ
ット6bが取り付けられ、両者の間に次段のコンクリー
ト3が打設される構造となっている。型枠ユニット6
a、6bは、型枠パネル1に垂直方向に複数本配置され
る縦端太8および水平方向に複数本配置される横端太9
を介してH型鋼材5を固定して構成される。コンクリー
ト壁4内にはセパレータ10が埋め込まれており、型枠
ユニット6a、6bの下部は、調節ボルト11、11に
よりH型鋼材5とセパレータ10が固定され、また、型
枠ユニット6a、6bの上部は連結部材7により固定さ
れ、型枠パネル1間には複数のセパレータ10が固定さ
れている。そして、型枠ユニット6a、6bを建込むに
際して、調節ボルト11と連結部材7とにより型枠パネ
ル1の垂直度を出すことを可能な構造としている。2 and 3, a form unit 6a and a form unit 6b are attached to the inside and outside of the concrete wall 4, and the concrete 3 of the next stage is placed between them. ing. Formwork unit 6
a and 6b are vertical edge thick 8 arranged in the vertical direction on the formwork panel 1 and lateral edge thick 9 arranged in the horizontal direction.
It is configured by fixing the H-shaped steel material 5 via. A separator 10 is embedded in the concrete wall 4, and the H-shaped steel material 5 and the separator 10 are fixed by adjusting bolts 11 and 11 to the lower portions of the formwork units 6a and 6b. The upper part is fixed by a connecting member 7, and a plurality of separators 10 are fixed between the formwork panels 1. Then, when the mold frame units 6a and 6b are built, the adjusting bolt 11 and the connecting member 7 can make the mold frame panel 1 perpendicular.
【0011】図4、図5および図6は図2のB部の詳細
を示し、図4(A)は縦端太と横端太との固定構造を示
す断面図、図4(B)は図4(A)の平面図、図5は横
端太とH型鋼材との固定構造を示す断面図、図6はセパ
レータと縦端太との固定構造を示す断面図である。4, 5 and 6 show the details of the portion B in FIG. 2, FIG. 4 (A) is a sectional view showing the fixing structure of the vertical end thickness and the horizontal end thickness, and FIG. 4 (B) is FIG. 4 (A) is a plan view, FIG. 5 is a sectional view showing a fixing structure of a horizontal end thickness and an H-shaped steel material, and FIG. 6 is a sectional view showing a fixing structure of a separator and a vertical end thickness.
【0012】図4において、縦端太8には2本の横端太
9が配設され、2本の横端太9の間から縦端太8を貫通
するように直角に曲折されたボルト12が挿入され、縦
端太8側はナット13により固定され、横端太9側は押
さえ金具14とナット15により固定されている。In FIG. 4, the vertical end thickness 8 is provided with two horizontal end thicknesses 9, and the bolt is bent at a right angle so as to penetrate the vertical end thickness 8 from between the two horizontal end thicknesses 9. 12 is inserted, the vertical end thick 8 side is fixed by a nut 13, and the horizontal end thick 9 side is fixed by a holding metal fitting 14 and a nut 15.
【0013】図5において、2本の横端太9の間からH
型鋼材5のフレーム5aを貫通してボルト16が挿入さ
れ、H型鋼材5側はナット13により固定され、横端太
9側は押さえ金具14とナット15により固定されてい
る。In FIG. 5, from the space between the two lateral ends 9 to H
A bolt 16 is inserted through the frame 5a of the shaped steel material 5, the H-shaped steel material 5 side is fixed by a nut 13, and the lateral thick end 9 side is fixed by a holding metal fitting 14 and a nut 15.
【0014】図6において、2本の横端太9の間から型
枠パネル1を貫通して接続ボルト17が挿入され、セパ
レータ10に連結され、横端太9側は押さえ金具14と
ナット15により固定されている。なお、18はシール
部材である。In FIG. 6, a connecting bolt 17 is inserted from between the two lateral end thicknesses 9 through the formwork panel 1 and connected to the separator 10. The lateral end thickness 9 side is provided with a pressing fitting 14 and a nut 15. It is fixed by. In addition, 18 is a seal member.
【0015】図7は図2のC部の詳細を示し、H型鋼材
とコンクリート壁との固定構造を示す断面図である。H
型鋼材5のフレーム5a、5bを貫通して調節ボルト1
1が挿入され、接続ナット20を介してセパレータ10
に接続され、H型鋼材5側は押さえ部材22、押さえ金
具14およびナット15により固定されている。また、
調節ボルト11の下方には、H型鋼材5のフレーム5a
を貫通して調節ボルト21が挿入されコンクリート壁4
に当接され、H型鋼材5側はナット23により固定され
ている。そして、型枠ユニット6a、6bを建込むに際
して、H型鋼材5の下部をコンクリート壁4に調節ボル
ト11により固定し、H型鋼材5の上部を連結部材7で
固定し、調節ボルト11と連結部材7とにより型枠パネ
ル1の垂直度を出す場合、上部の調節ボルト11のナッ
ト15を操作することにより、H型鋼材5を図示矢印の
方向に傾けることができ、また、下部の調節ボルト21
のナット23を操作することにより、H型鋼材5を逆方
向に傾けることができ、このようにして型枠ユニット6
a、6bの垂直度すなわち建て起こしを簡単に、高精度
で出すこと可能となる。FIG. 7 is a sectional view showing the details of the portion C in FIG. 2 and showing the fixing structure of the H-shaped steel material and the concrete wall. H
Adjusting bolt 1 passing through frames 5a and 5b of shaped steel material 5
1 is inserted and the separator 10 is inserted through the connection nut 20.
, And the H-shaped steel material 5 side is fixed by a holding member 22, a holding metal fitting 14, and a nut 15. Also,
Below the adjusting bolt 11, the frame 5a of the H-shaped steel material 5 is provided.
The adjustment bolt 21 is inserted through the concrete wall 4
, And the H-shaped steel material 5 side is fixed by a nut 23. Then, when building the form units 6a and 6b, the lower portion of the H-shaped steel material 5 is fixed to the concrete wall 4 by the adjusting bolt 11, the upper portion of the H-shaped steel material 5 is fixed by the connecting member 7, and is connected to the adjusting bolt 11. When the verticality of the form panel 1 is to be achieved by the member 7, the H-shaped steel material 5 can be tilted in the direction of the arrow in the figure by operating the nut 15 of the adjusting bolt 11 on the upper side, and the adjusting bolt on the lower side can be tilted. 21
The H-shaped steel material 5 can be tilted in the opposite direction by operating the nut 23 of the mold unit 6 in this manner.
It is possible to easily and accurately raise the verticality of a and 6b, that is, the erecting.
【0016】なお、上記実施例においては、2本の調節
ボルト11、21によりH型鋼材5の傾動を可能にして
いるが、調節ボルト11のみにより傾動させるようにし
てもよい。Although the H-shaped steel material 5 can be tilted by the two adjusting bolts 11 and 21 in the above embodiment, it may be tilted only by the adjusting bolt 11.
【0017】[0017]
【発明の効果】以上の説明から明らかなように本発明に
よれば、H型鋼材の下部をコンクリート壁に調節ボルト
により固定し、H型鋼材の上部を連結部材で固定し、こ
れら調節ボルトと連結部材とにより型枠パネルの垂直度
を出すようにしているため、足場からサポートやチェー
ンで押し引きしなくても型枠の建て起こしが簡単な操作
で可能になるとともに、相当高い持出し壁であっても精
度良く安全に施工できる。また、型枠ユニットは何度で
も使用できコストが低減できる。As is apparent from the above description, according to the present invention, the lower portion of the H-shaped steel material is fixed to the concrete wall by the adjusting bolts, and the upper portion of the H-shaped steel material is fixed by the connecting member. Since the verticality of the formwork panel is brought out by the connecting member, the formwork can be erected without pushing and pulling it from the scaffold with a support or a chain, and with a considerably high take-out wall. Even if there is, it can be constructed accurately and safely. Further, the form unit can be used any number of times, and the cost can be reduced.
【図1】本発明の持出し高さの高い壁型枠施工法の1実
施例を示し、施工順序を示す概略図である。FIG. 1 is a schematic view showing an embodiment of a wall formwork construction method of a high carry-out height according to the present invention and showing a construction order.
【図2】図1における型枠ユニットの建込方法の1実施
例を説明するための図であり、コンクリート壁への型枠
ユニットの建込状態を示す断面図である。FIG. 2 is a view for explaining one embodiment of the method of installing the mold unit in FIG. 1, and is a cross-sectional view showing a condition in which the mold unit is installed in a concrete wall.
【図3】図2においてA方向から見た正面図である。FIG. 3 is a front view seen from the direction A in FIG.
【図4】図2のB部の詳細を示し、図4(A)は縦端太
と横端太との固定構造を示す断面図、図4(B)は図4
(A)の平面図である。4 is a detailed view of a portion B of FIG. 2, FIG. 4 (A) is a cross-sectional view showing a fixing structure of a vertical end thickness and a lateral end thickness, and FIG. 4 (B) is FIG.
It is a top view of (A).
【図5】図2のB部の詳細を示し、横端太とH型鋼材と
の固定構造を示す断面図である。FIG. 5 is a cross-sectional view showing the details of the portion B in FIG. 2 and showing a fixing structure of a lateral edge thickness and an H-shaped steel material.
【図6】図2のB部の詳細を示し、セパレータと縦端太
との固定構造を示す断面図である。FIG. 6 is a cross-sectional view showing details of a portion B of FIG. 2 and showing a fixing structure of a separator and a vertical end thickness.
【図7】図2のC部の詳細を示し、H型鋼材とコンクリ
ート壁との固定構造を示す断面図である。FIG. 7 is a cross-sectional view showing details of the C portion of FIG. 2 and showing a fixing structure of an H-shaped steel material and a concrete wall.
【図8】本発明が適用されるコンクリート構造の1例を
示し、図8(A)は建物全体の水平断面図、図8(B)
は垂直断面図である。FIG. 8 shows an example of a concrete structure to which the present invention is applied, FIG. 8 (A) is a horizontal sectional view of the entire building, and FIG. 8 (B).
Is a vertical sectional view.
H…建物、J…打継部、1…型枠パネル、3…コンクリ
ート 4…コンクリート壁、5…H型鋼材、6、6a、6b…
型枠ユニット 7…連結部材、8…縦端太、9…横端太、10…セパレ
ータ 11、21…調節ボルト、12、16…ボルト、13、
15、23…ナット 14…押さえ金具、17…接続ボルト、18…シール部
材 20…接続ナット、22…押さえ部材H ... Building, J ... Joint, 1 ... Form panel, 3 ... Concrete 4 ... Concrete wall, 5 ... H-shaped steel material, 6, 6a, 6b ...
Formwork unit 7 ... Connecting member, 8 ... Vertical end thickness, 9 ... Horizontal end thickness, 10 ... Separator 11, 21 ... Adjusting bolt, 12, 16 ... Bolt, 13,
15, 23 ... Nut 14 ... Press fitting, 17 ... Connection bolt, 18 ... Seal member 20 ... Connection nut, 22 ... Press member
Claims (1)
H型鋼材を固定した型枠ユニットを備え、既設のコンク
リート壁の内外に前記型枠ユニットを建込み、コンクリ
ートを打設し、コンクリート養生後、前記型枠ユニット
を脱型してコンクリート壁の上部に建込むことを繰り返
す施工法であって、前記型枠ユニットを建込むに際し
て、H型鋼材の下部をコンクリート壁に調節ボルトによ
り固定し、H型鋼材の上部を連結部材で固定し、前記調
節ボルトと連結部材とにより型枠パネルの垂直度を出す
ことを特徴とする持出し高さの高い壁型枠の施工法。1. A formwork panel comprising a formwork unit in which an H-shaped steel material is fixed to a formwork panel through vertical and horizontal ends, and the formwork unit is built in and out of an existing concrete wall to pour concrete. Then, after the concrete is cured, it is a construction method in which the mold unit is demolded and built on the upper part of the concrete wall, and when the mold unit is built, the lower part of the H-shaped steel material is adjusted to the concrete wall. A method for constructing a wall formwork having a high take-out height, which is characterized in that the formwork panel is fixed by bolts, the upper part of the H-shaped steel material is fixed by a connecting member, and the adjusting panel and the connecting member provide the verticality of the formwork panel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14174693A JPH074033A (en) | 1993-06-14 | 1993-06-14 | Construction method of high projection wall form |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14174693A JPH074033A (en) | 1993-06-14 | 1993-06-14 | Construction method of high projection wall form |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH074033A true JPH074033A (en) | 1995-01-10 |
Family
ID=15299241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14174693A Pending JPH074033A (en) | 1993-06-14 | 1993-06-14 | Construction method of high projection wall form |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH074033A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113374254A (en) * | 2021-06-28 | 2021-09-10 | 中冶建工集团有限公司 | Construction method for improving forming quality of junction of new and old cast-in-place concrete walls |
-
1993
- 1993-06-14 JP JP14174693A patent/JPH074033A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113374254A (en) * | 2021-06-28 | 2021-09-10 | 中冶建工集团有限公司 | Construction method for improving forming quality of junction of new and old cast-in-place concrete walls |
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