CN112922353A - Construction method for forward and reverse combination of steel structure frame outer curtain wall - Google Patents
Construction method for forward and reverse combination of steel structure frame outer curtain wall Download PDFInfo
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- CN112922353A CN112922353A CN202110138748.8A CN202110138748A CN112922353A CN 112922353 A CN112922353 A CN 112922353A CN 202110138748 A CN202110138748 A CN 202110138748A CN 112922353 A CN112922353 A CN 112922353A
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- construction
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- curtain wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
Abstract
The invention provides a construction method for forward and backward combination of an outer curtain wall of a steel structure frame, which comprises the following steps: s1, leveling the field, and hardening the well ring at the designed position of the steel column pile; s2, performing one-column one-pile construction; s3, excavating a first layer of earthwork; s4, carrying out foundation pit steel support construction; simultaneously, constructing a layer of connecting beam; s5, hoisting an upper steel structure and constructing a steel roof; s6, excavating the second layer of earthwork, pouring a cushion layer to the side of the support pile, and performing bottom plate construction; simultaneously, cross operation construction such as upper curtain wall keel upright posts, cross beams and the like is carried out; s7, when the strength of the bottom plate reaches 80%, dismantling the support, and carrying out underground structure construction; and simultaneously, installing the curtain wall glass and the decorative moulding. The invention realizes the synchronous construction of underground and overground structures, and provides sufficient time for the construction of steel structure frame outer curtain walls and interior decoration projects.
Description
Technical Field
The invention relates to the technical field of curtain wall construction, in particular to a construction method for forward and reverse combination of an outer curtain wall of a steel structure frame.
Background
The traditional construction method of the existing construction of the steel structure frame outer curtain wall containing the basement is sequential construction from bottom to top, namely, the overground structure is constructed after earth excavation and underground structure construction are finished. However, the traditional sequential construction method has long construction period and low construction efficiency, and is not suitable for engineering projects with short construction period. Especially, when the amount of interior decoration works is large, if water cannot be closed, the indoor work cannot be normally carried out, and the total construction period is directly influenced.
In order to improve the construction efficiency, the reverse construction method is also a commonly used construction method, but the construction method still has the following defects: the underground diaphragm wall is used as a permanent structure, so that the construction precision requirement is high, the cost is higher, and the economy of a shallow foundation pit is poorer; the ground and underground synchronous construction is adopted, the arrangement of soil taking ports is limited during soil excavation, a plurality of soil taking ports are reserved for foundation pits with large areas, and the later plugging quality is difficult to control.
For example, in a Nanjing Lukou airport transfer hall, because the construction period of interior decoration projects in the transfer hall is short, interior decoration construction can be carried out only after curtain walls are completely finished according to the original plan requirement, so that the construction period is delayed, and the requirement of the construction period cannot be ensured.
Disclosure of Invention
Aiming at the defect that the traditional forward construction method and reverse construction method are difficult to take the construction efficiency and the construction cost into consideration, the construction method combining the forward construction method and the reverse construction method is provided, the advantages of the forward construction method and the reverse construction method are combined, the synchronous construction of the underground and ground structures is realized, and sufficient time is provided for the construction of the steel structure frame outer curtain wall and the indoor decoration project.
The invention provides a construction method for forward and backward combination of an outer curtain wall of a steel structure frame, which comprises the following steps:
s1, leveling the field, and hardening the well ring at the designed position of the steel column pile;
s2, performing one-column one-pile construction;
s3, excavating a first layer of earthwork;
s4, carrying out foundation pit steel support construction; simultaneously, constructing a layer of connecting beam;
s5, hoisting an upper steel structure and constructing a steel roof;
s6, performing second-layer earthwork excavation, pouring a cushion layer to the side of the support pile, and performing bottom plate construction; simultaneously, cross operation construction such as upper curtain wall keel upright posts, cross beams and the like is carried out;
s7, when the strength of the bottom plate reaches 80%, dismantling the support, and carrying out underground structure construction; and simultaneously, installing the curtain wall glass and the decorative moulding.
Preferably, in S1, the specific process of hardening the well ring is as follows: and pre-burying a plurality of n-shaped pre-embedded parts according to the bracket position and the pile position of the steel column, wherein the n-shaped pre-embedded parts are 1cm higher than the concrete ground of the well ring, popping out a positioning frame position line according to the bracket position and the pile position center, fixing the positioning frame and the n-shaped pre-embedded parts, and placing a steel reinforcement cage.
Preferably, in S2, the concrete process of one-column-one-pile construction is as follows: and popping a bracket central line, a bracket side line and a pile position central line on the positioning frame, hanging the steel column to ensure that the center of the steel column is superposed with the center of the pile position central line, and fixing the bracket of the steel column with the positioning frame.
Preferably, in S2, the operation platform is set after one-column-one-pile construction.
Preferably, in S4, the tie beams are disposed between the steel columns and the external structure; and after the whole construction of the structure is finished, cutting off the connecting beam between the steel column and the external structure.
Preferably, in S4, the connecting beam is an SRC beam.
Preferably, in S7, when the underground structure is constructed, the steel column is simultaneously constructed with the steel reinforced concrete.
Compared with the prior art, the invention has the following beneficial effects: by adopting the method, the outer curtain wall of the overground steel structure frame and the underground can be synchronously constructed, the construction progress can be accelerated, and the construction method has indoor decoration construction conditions in advance; and the quality of the underground structure joint can be effectively controlled, and the later maintenance cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of the construction of an embodiment of the present invention.
Fig. 2 is a partial structural schematic diagram of an embodiment of the present invention.
Wherein, 1, operating platform; 2. a bracket; 3. hardening the well ring; 4. a concrete hopper; 5. a steel column; 6. a positioning frame.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
Examples
The Nanjing salary airport T1 airport terminal is used for transferring a lobby for about 2600 square meters, and 12 months and 31 days in 2019 are planned to be completed. The original design construction working condition is as follows: support → earth excavation → cushion → anchor rod → water proof → bottom plate → underground structure → hoisting of column below 7.83 → hoisting of steel beam 7.83m → hoisting of column above 7.83 and steel structure of roof (inserting of curtain wall segment) → roof (curtain wall).
If according to the original design condition, the construction of the equal-height bridge is finished, the frame body is dismantled and then delivered to the transfer hall for construction, the transfer hall is constructed from bottom to top, the east side water closing is estimated to be 11 months from the bottom of 10 months, the east side of the whole departure hall can not close water and directly influences the indoor decoration and fitment of the departure hall, the construction plan can not be finished, and the investment operation of the first half year of 2020 can be directly influenced.
The construction method of the invention is adopted for construction by combining the forward and reverse of the steel structure frame outer curtain wall:
referring to fig. 1-2, the construction method includes the steps of:
s1, leveling a field, hardening a well ring at the design position of a steel column pile, namely, pre-burying four n-shaped pre-embedded parts which are 500x 5002 cm thick and are made of steel plates according to the position of a bracket 2 and the size of a pile position, wherein the n-shaped pre-embedded parts are 1cm higher than the concrete ground of the well ring, popping out a position line of a positioning frame 6 according to the position of the bracket 2 and the center of the pile position, the positioning frame 6 is made of 20# I-steel, the positioning frame 6 is welded at the upper end of the n-shaped pre-embedded parts, and then placing a reinforcement cage to obtain a hardened well ring 3;
s2, performing one-column one-pile construction, namely popping a bracket center line, a bracket side line and a pile position center line on the positioning frame 6, hanging the steel column 5 to enable the center of the steel column 5 to coincide with the center of the pile position center line, and welding the bracket 2 at the upper end of the positioning frame 6; an operation platform 1 is arranged to prevent construction disturbance, and a concrete hopper 4 is arranged on the operation platform 1 and used for pouring concrete;
s3, excavating a first layer of earthwork;
s4, constructing a foundation pit steel support; simultaneously, constructing a layer of connecting beams, wherein the connecting beams are arranged between the steel columns and an external structure so as to improve the overall stability of the steel columns, and the connecting beams are SRC beams;
s5, hoisting an upper steel structure and constructing a steel roof;
s6, performing second-layer earthwork excavation, pouring a cushion layer to the side of the support pile, and performing bottom plate construction; simultaneously, cross operation construction such as upper curtain wall keel upright posts, cross beams and the like is carried out; when the second layer of earthwork is excavated, symmetrically excavating nearby the steel column under the manual assistance;
s7, when the strength of the bottom plate reaches 80%, dismantling the support, and carrying out underground structure construction; simultaneously, steel column outer reinforced concrete construction is carried out; simultaneously, mounting the curtain wall glass and the decorative moulding; and after the integral construction of the structure is completed, cutting off the connecting beam between the steel column and the external structure.
By adopting the method of the embodiment, the outer curtain wall of the overground steel structure frame and the underground can be synchronously constructed, the construction progress can be accelerated, and the construction condition of indoor decoration is met in advance; and the quality of the underground structure joint can be effectively controlled, and the later maintenance cost is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A construction method for combining a steel structure frame outer curtain wall in a forward and reverse manner is characterized by comprising the following steps:
s1, leveling the field, and hardening the well ring at the designed position of the steel column pile;
s2, performing one-column one-pile construction;
s3, excavating a first layer of earthwork;
s4, carrying out foundation pit steel support construction; simultaneously, constructing a layer of connecting beam;
s5, hoisting an upper steel structure and constructing a steel roof;
s6, performing second-layer earthwork excavation, pouring a cushion layer to the side of the support pile, and performing bottom plate construction; simultaneously, cross operation construction such as upper curtain wall keel upright posts, cross beams and the like is carried out;
s7, when the strength of the bottom plate reaches 80%, dismantling the support, and carrying out underground structure construction; and simultaneously, installing the curtain wall glass and the decorative moulding.
2. The construction method for the clockwise and anticlockwise combination of the outer curtain wall of the steel structure frame as claimed in claim 1, wherein in S1, the concrete process of well ring hardening is as follows: and pre-burying a plurality of n-shaped pre-embedded parts according to the bracket position and the pile position of the steel column, wherein the n-shaped pre-embedded parts are 1cm higher than the concrete ground of the well ring, popping out a positioning frame position line according to the bracket position and the pile position center, fixing the positioning frame and the n-shaped pre-embedded parts, and placing a steel reinforcement cage.
3. The construction method for the forward-backward combination of the external curtain wall of the steel structure frame as claimed in claim 1, wherein in S2, the concrete process of one-column-one-pile construction is as follows: and popping a bracket central line, a bracket side line and a pile position central line on the positioning frame, hanging the steel column to ensure that the center of the steel column is superposed with the center of the pile position central line, and fixing the bracket of the steel column with the positioning frame.
4. The method for constructing the forward-backward combination of the external curtain wall of the steel structure frame as claimed in claim 1, wherein in S2, an operation platform is provided after one-column-one-pile construction.
5. The method of claim 1, wherein in step S4, the tie beams are disposed between the steel columns and the external structure; and after the whole construction of the structure is finished, cutting off the connecting beam between the steel column and the external structure.
6. The method for constructing the forward-backward combination of the external curtain wall of the steel structure frame as claimed in claim 1, wherein in S4, the connecting beam is an SRC beam.
7. The method of claim 1, wherein in step S7, when constructing the underground structure, the steel column is simultaneously constructed with steel column wrapped reinforced concrete.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110138748.8A CN112922353B (en) | 2021-02-01 | 2021-02-01 | Construction method for forward and reverse combination of steel structure frame outer curtain wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110138748.8A CN112922353B (en) | 2021-02-01 | 2021-02-01 | Construction method for forward and reverse combination of steel structure frame outer curtain wall |
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| CN112922353A true CN112922353A (en) | 2021-06-08 |
| CN112922353B CN112922353B (en) | 2022-04-12 |
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Citations (6)
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|---|---|---|---|---|
| EP0190409A1 (en) * | 1985-02-07 | 1986-08-13 | Niederberg-Chemie GmbH | Underground walls with impermeable sheets |
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| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN109944250A (en) * | 2019-03-07 | 2019-06-28 | 上海建工集团股份有限公司 | The foundation pit of impermanent vertical support system is along inverse combining construction method |
| CN110080525A (en) * | 2019-04-22 | 2019-08-02 | 上海建工一建集团有限公司 | A kind of skyscraper two-way synchronous construction method |
| CN111608202A (en) * | 2020-06-23 | 2020-09-01 | 中国建筑第四工程局有限公司 | Reverse construction method basement ring beam steel bar installation method and device |
-
2021
- 2021-02-01 CN CN202110138748.8A patent/CN112922353B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0190409A1 (en) * | 1985-02-07 | 1986-08-13 | Niederberg-Chemie GmbH | Underground walls with impermeable sheets |
| CN104594358A (en) * | 2015-01-07 | 2015-05-06 | 江苏中南建筑产业集团有限责任公司 | Sequential construction and reversed construction Clockwise and counter-clockwise combined construction method of irregular planar deep foundation pit |
| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN109944250A (en) * | 2019-03-07 | 2019-06-28 | 上海建工集团股份有限公司 | The foundation pit of impermanent vertical support system is along inverse combining construction method |
| CN110080525A (en) * | 2019-04-22 | 2019-08-02 | 上海建工一建集团有限公司 | A kind of skyscraper two-way synchronous construction method |
| CN111608202A (en) * | 2020-06-23 | 2020-09-01 | 中国建筑第四工程局有限公司 | Reverse construction method basement ring beam steel bar installation method and device |
Non-Patent Citations (1)
| Title |
|---|
| 朱家祥等: "混凝土芯水泥搅拌桩在基坑支护中的应用", 《河海大学学报》 * |
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| CN112922353B (en) | 2022-04-12 |
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