CN115324106B - Construction method for optimizing intermittent stopping point of synchronous reverse construction technology - Google Patents
Construction method for optimizing intermittent stopping point of synchronous reverse construction technology Download PDFInfo
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- CN115324106B CN115324106B CN202211001556.3A CN202211001556A CN115324106B CN 115324106 B CN115324106 B CN 115324106B CN 202211001556 A CN202211001556 A CN 202211001556A CN 115324106 B CN115324106 B CN 115324106B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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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
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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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
- E04G25/00—Shores or struts; Chocks
- E04G25/02—Shores or struts; Chocks non-telescopic
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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
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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Abstract
The application relates to a construction method for optimizing intermittent stopping points of synchronous reverse construction technology, which relates to the technical field of construction of a reverse construction method of a building, and comprises one column and one pile construction; b0, constructing a conversion layer; constructing 1-6 layers upwards and constructing reinforcement supports downwards between the upright posts; constructing a layer B1 and below, a bottom plate and 7-12 layers; 13-28 layers of construction are performed after the vertical construction of the basement is completed. According to the application, the reinforcement support is synchronously built between the upright posts in the 1-6-layer construction process, the reinforcement support fixedly connects two adjacent upright posts, so that the stability between the upright posts is improved, 7-12-layer construction can be performed after 1-6-layer construction is completed without waiting for B1-layer construction or completion of construction, the technical intermittent stopping point after 6-layer construction is completed is eliminated, and the construction process of a building is accelerated. The reinforcement support comprises a temporary horizontal support and a temporary vertical diagonal support, and a plurality of mounting seats are arranged on the upright post. The application can effectively solve the problem that the technology stops dragging and slowing the construction process intermittently in the reverse construction process.
Description
Technical Field
The application relates to the technical field of reverse construction of buildings, in particular to a construction method for optimizing intermittent stopping points of synchronous reverse construction technology.
Background
Along with the rapid development of economic construction in China, people have increasingly increased demands for good life, the scale of building engineering is larger and larger, high-rise buildings and underground buildings are more and more, and when engineering construction is carried out in urban core areas and old urban areas, surrounding adjacent buildings are more, so that the environment demands are very sensitive. Under the background, the reverse construction method has the characteristics of meeting development requirements, and the reverse construction method has obvious optimizing effects on the problems of short construction pre-selling period, complex surrounding environment, low soil outlet efficiency and the like.
Reverse construction is a top-down reverse construction technique, in which a basement roof (i.e., conversion layer) structure system is generally poured first, and then the lateral stiffness is used as a lateral support to construct a lower main structure downwards and simultaneously construct an upper main structure. The maintenance structure around the foundation pit in the reverse construction method structure adopts the underground continuous wall construction technology of two-in-one walls to replace the traditional outer wall, and the formal main structure beam slab replaces the traditional temporary support, so that the problems of foundation pit enclosure, temporary support construction and dismantling can be effectively solved, and resources are effectively saved.
The reverse construction method in the related art comprises the following steps: 1) Performing one-column one-pile construction; 2) Constructing a B0 plate conversion layer; 3) Constructing the B0 plate conversion layer upwards and downwards simultaneously, constructing the 1-X layer upwards, wherein X is the maximum floor building layer number borne by the B0 conversion layer, and constructing the B1 layer downwards; 4) And 5) after the layers 1-X and B1 are all completed, constructing an X+1-U layer upwards, wherein U is the maximum floor building layer number which can be borne by a supporting structure formed by the B0 conversion layer, the stand column, the B1 layer and the filling pile, and 5) after the construction downwards until the floor is built back, sequentially carrying out building construction above the U layer.
For the related technology, because the construction efficiency of the overground and the underground is different, after the overground 1-X layer is constructed, the underground B1 layer is not constructed, and the construction of the X+1-U layer can be carried out after the B1 layer is completely constructed, so that a technical intermittent stopping point is generated in the construction process, and the construction process is dragged slowly.
Disclosure of Invention
In order to solve the problem that the intermittent stopping point of the technology drags the slow construction process in the reverse construction method, the application provides a construction method for optimizing the intermittent stopping point of the synchronous reverse construction technology.
The application provides a construction method for optimizing intermittent stopping points of synchronous reverse construction technology, which adopts the following technical scheme:
a construction method for optimizing intermittent stopping points of synchronous reverse construction technology comprises the following steps: s1, constructing a column by column, forming a plurality of column pile holes at construction positions, constructing a cast-in-place pile at the bottom of the column pile holes, and then arranging a column above the cast-in-place pile; s2, constructing a B0 conversion layer, excavating first-layer earthwork to the depth of the B0 conversion layer, and constructing the B0 conversion layer; s3, constructing an upward 1-X layer, wherein X is the maximum floor building layer number which can be borne by the B0 conversion layer; downwards excavating until the upright post parts are exposed, and building a reinforcing support between the upright posts; s4, constructing an upward X+1-Y layer, wherein Y is the maximum floor building layer number which can be borne by a first support structure formed by a B0 conversion layer, an upright post, a reinforcing support and a filling pile, and is more than or equal to U; constructing a layer B1, constructing a bottom plate below the layer B1, constructing the bottom plate downwards along the layer B1 until the construction is completed, and pouring the bottom plate; s5, after the vertical construction of the basement is completed, floor construction of a Y-Z layer is carried out in the forward direction, wherein Z is the maximum floor number of building layers which can be borne by a second supporting structure consisting of a B0 conversion layer, a stand column, a reinforcing support, a filling pile, a B1 layer and a bottom plate;
the reinforcement support comprises a temporary horizontal support and a temporary vertical diagonal brace, and both ends of the temporary horizontal support and both ends of the temporary vertical diagonal brace are fixedly connected between two adjacent upright posts;
the stand is provided with a plurality of mount pads, arbitrary the mount pad is in including fixed mounting a plurality of connecting plates of stand outer wall, fixed mounting be in the connecting plate is kept away from the same mounting panel of stand outer wall and fixed connection be in the stand outer wall with a plurality of reinforcing plates between the mounting panel, the lateral wall of reinforcing plate still with connecting plate fixed connection, the both ends of interim horizontal support and the equal fixed connection in both ends of interim vertical bracing are different on the mount pad.
Through adopting above-mentioned technical scheme, through the in-process at S3 construction, build in step between the stand and consolidate the support, consolidate and support and carry out fixed connection to two adjacent stands, improve the stability between the stand, reduce the slenderness ratio of stand, after 1-X layer construction is accomplished, need not to wait for B1 layer construction or construction to accomplish and can carry out the construction of X+1-Y layer, eliminate the technological intermittent type stopping point after the completion of X layer construction, accelerate the construction progress of building. The method does not need the labor force for the escape and the secondary approach, does not need the reconfiguration of the turnover frame material, is favorable for environmental protection, and reduces the construction cost;
the temporary horizontal support and the temporary vertical diagonal support jointly act between two adjacent upright posts, the temporary horizontal support and the temporary vertical diagonal support are distributed in a triangular shape, and the stability of the triangle is utilized to further improve the support stabilizing effect of the temporary horizontal support on the upright posts;
through setting up the mount pad, when installing the mount pad on the stand, with a plurality of connecting plates fixed mounting on the lateral wall of stand, then with mounting panel fixed mounting in the tip of connecting plate, use reinforcing plate and mounting panel, connecting plate and stand fixed connection at last, further improve fixed connection's stability between mounting panel and the stand, the setting of mount pad has improved the convenience of being connected between stand and the reinforcement support, the fixed connection between the reinforcement support and the stand of being convenient for.
Optionally, the temporary horizontal support is arranged at the position of-4 m to-5 m of the main building B0 conversion layer.
By adopting the technical scheme, the temporary horizontal support mounting position is arranged at the elevation position between the main building and 4m to 5m, the position is about the middle position of the upright post, and compared with other positions, the position is provided with the reinforcing support, so that the reinforcing effect of the reinforcing support on the upright post is more remarkable.
Optionally, two ends of the temporary horizontal support are welded with different mounting plates.
Through adopting above-mentioned technical scheme, welded connected mode has firm, reliable, safe, economic nature good, efficient advantage, just supports temporarily the level and is connected through welded connected mode between the mounting panel, improves the stability of fixed connection between temporary level support and the mounting panel.
Optionally, the vertical distance between the mounting seats arranged on the same upright is at least 200mm.
Through adopting above-mentioned technical scheme, through setting up the distance interval between the mount pad on the same stand for the mount pad can not take place to interfere between the adjacent stand on the in-process of welding installation on the stand, improves the convenience of mount pad and stand connection in-process welding installation, improves the stability of welding connection on the stand of mount pad.
Optionally, S3 also comprises secondary structure construction of the Nth layer, wherein N is more than or equal to 1 and less than or equal to X.
Through adopting above-mentioned technical scheme, the in-process that S3 goes on can carry out the secondary structure construction of nth layer in step for secondary structure construction goes on in step with B1 layer construction, the construction between the nth layer template of being convenient for, the exhibition show between the nth layer template of being convenient for.
Optionally, S4 further comprises secondary construction of 1-Y layers.
By adopting the technical scheme, when S4 is constructed, secondary structure construction including 1-Y layers is synchronously performed, so that the construction efficiency of the building is improved, and the construction period of the building is shortened.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the in-process of S3 construction, build the reinforcement support in step between the stand, consolidate and support and carry out fixed connection to two adjacent stands, improve the stability between the stand, reduce the slenderness ratio of stand, after 1-X layer construction is accomplished, need not to wait for B1 layer construction or construction to accomplish and can carry out the construction of X+1-Y layer, eliminate the technical intermittent type stopping point after the construction of X layer is accomplished, accelerate the construction progress of building. The method does not need the labor force for the escape and the secondary approach, does not need the reconfiguration of the turnover frame material, is favorable for environmental protection, and reduces the construction cost;
2. through setting up the reinforcement support, interim horizontal support and interim vertical bracing combined action are between two adjacent stands, and stand, interim horizontal support and interim vertical bracing three are triangle-shaped and distribute, utilize triangle-shaped's stability, further improve interim horizontal support to the support stabilization effect between the stand;
3. through setting up the mount pad, when installing the mount pad on the stand, with a plurality of connecting plates fixed mounting on the lateral wall of stand, then with mounting panel fixed mounting in the tip of connecting plate, use reinforcing plate and mounting panel, connecting plate and stand fixed connection at last, further improve fixed connection's stability between mounting panel and the stand, the setting of mount pad has improved the convenience of being connected between stand and the reinforcement support, the fixed connection between the reinforcement support and the stand of being convenient for.
Drawings
Fig. 1 is a schematic view showing a structure of a reinforcing support according to an embodiment of the present application.
Fig. 2 is an enlarged schematic view of a portion of the structure a of fig. 1.
Reference numerals illustrate: 1. a column; 2. reinforcing and supporting; 21. a temporary horizontal support; 22. temporary vertical diagonal bracing; 3. a mounting base; 31. a connecting plate; 32. a mounting plate; 33. reinforcing plate.
Detailed Description
The application is described in further detail below with reference to fig. 1-2.
The embodiment of the application discloses a construction method for optimizing intermittent stopping points of synchronous reverse construction technology.
Referring to fig. 1 and 2, a construction method for optimizing intermittent stopping points of synchronous reverse construction technology includes: firstly, constructing a column and a pile; secondly, constructing a B0 conversion layer; thirdly, constructing a 1-X layer, and building a reinforcing support; fourthly, synchronously constructing the layer B1 and below, the bottom plate and the layer X+1-Y; and fifthly, constructing a Y-Z layer.
Through in the work progress of third step, build the reinforcement in step and support, consolidate and support and carry out fixed connection to two adjacent stands, improve the stability between the stand, reduce the slender ratio of stand for the stand has stronger bearing and supporting ability, after 1-X layer construction is accomplished, need not to wait for B1 layer construction or construction to accomplish and can carry out the construction of X+1-Y layer and eliminate the technological intermittent type stopping point after the completion of X layer construction, accelerate the construction progress of building. The method does not need labor force for returning and secondary entering, does not need reconfiguration of turnover frame materials, is favorable for environmental protection, and reduces construction cost.
The first step, the concrete working procedure of one column and one pile construction is as follows: 1) Leveling and hardening, and performing concrete pouring on the surface of a foundation pit to be constructed, so that a drilling machine and a crane of a digging machine in the construction process can perform in-situ construction conveniently; 2) Positioning and perforating, measuring and defending lines to determine Kong Kaiwa hole positions of the column piles, and digging holes by using a rotary drilling rig, wherein the hole depths are the depths of basement bottom plates; 3) The hole is formed, reinforced concrete is used for wall protection treatment of the hole wall, and necessary operation conditions are created for later dry operation, manual well descending operation and top support of the steel upright post (1); 4) Judging rock and moving the machine, judging the rock in the drilling process, judging whether the drilling depth and the drilling position of the pile hole meet the construction requirements, and then moving the drilling equipment away from the formed drilling hole; 5) Lowering the reinforcement cage, then hanging the reinforcement cage of the pile body into the pile hole of the pile, and pouring concrete to the position of-3.5 m of the pile top elevation; 6) Verticality of the reinforcement cage and the guide pipe is adjusted by using the verticality adjusting frame; 7) Cleaning the pile hole; 8) Pouring concrete into the pile holes, and backfilling stones; 9) Grouting, namely grouting into the guide pipe; 10 The pile sound detection is carried out, and the quality detection is carried out on the pile; 11 Coring, namely coring the upright post to detect the quality of the upright post; 12 Static load balance detection, static load self-balancing measurement is carried out on the post after construction, and the vertical compression bearing capacity of the single pile is measured.
In the construction process of one column and one pile, the number of the filling piles and the number of the upright columns 1 are multiple, the filling piles and the upright columns are arranged in a one-to-one correspondence manner, and the upright columns 1 are arranged in a maintenance space formed by the basement continuous wall in an array mode.
And secondly, excavating earthwork of a construction site by using an excavator to the depth of the B0 conversion layer, and then constructing the B0 conversion layer.
Thirdly, after the strength of the relevant range of the B0 conversion layer reaches 80%, constructing upwards and downwards along the B0 conversion layer, constructing upwards 1-X layers, wherein X is the maximum floor building layer number which can be borne by the B0 conversion layer, and in the embodiment of the application, X is 6.
The lower part is excavated to a position of-4 m to-5 m below the B0 conversion layer, in the embodiment of the application, the lower part is excavated to a position of-4.6 m below the B0 conversion layer, a reinforcing support 2 is built in the middle of the B0-B1 layer, the reinforcing support 2 can be a temporary support or a permanent support, and the reinforcing support is a temporary rigid support in the embodiment of the application.
After the construction of any one of the 1-6 layers is completed, the construction of the secondary structure of the N-th layer can be carried out, N is not less than 1 and not more than 6, N is the floor which is already constructed in the 1-6 layers, and the construction of the non-bearing structure (constructional column, lintel, water stopping reverse beam, parapet wall, capping, filling wall and partition wall) is carried out. In the process of main part bearing structure construction, carry out the construction of secondary structure simultaneously, the construction between the N layer template of being convenient for, the exhibition show between the N layer template of being convenient for.
Referring to fig. 1 and 2, a plurality of mounting seats 3 are welded and mounted on the side wall of the upright 1, in the embodiment of the application, the number of the mounting seats 3 on any upright 1 is set to 6, and 4 of the mounting seats 3 are welded and mounted at the same horizontal height of the upright 1 and are symmetrically arranged along the center of the axis of the upright 1, one of the other two mounting seats 3 is welded and mounted at a position 200mm above the 4 mounting seats 3, and the other mounting seat 3 and the original mounting seat 3 are mutually deviated. The 4 mounting seats 3 are arranged at the elevation position of-4.6 m of the main building B0 conversion layer. The mount pad 3 that the interval set up, the welding construction of mount pad 3 on stand 1 outer wall of being convenient for reduces the adjacent mount pad 3 on the same stand 1, takes place the risk of interference in welding process, improves the stability of installing welding installation on stand 1.
Referring to fig. 1 and 2, the mount 3 includes a plurality of connection plates 31 welded to the outer wall of the column 1, and the same mounting plate 32 welded to the ends of the plurality of connection plates 31. The quantity of arbitrary mount pad 3 connecting plate 31 sets up to 3, and 3 connecting plate 31 mutual parallel arrangement, and the lateral wall that connecting plate 31 in two outsides kept away from each other all welded connection has three reinforcing plate 33, the both ends of reinforcing plate 33 respectively with the terminal surface of mounting panel 32 and the outer wall welded connection of stand 1, the setting of reinforcing plate 33 has improved the joint strength of mounting panel 32 on stand 1.
In the process of welding assembly and welding installation of the mounting seat 3 on the outer wall of the upright post 1, the welding needs to be carried out in a sectional symmetry way, the welding length of each time is not more than 100mm, and when the welding of the welding seam is completed and the welding seam is completely cooled to reach the strength, the welding seam construction of other sections can be carried out.
The reinforcement support 2 includes a temporary horizontal support 21 and a temporary vertical diagonal support 22, both of which are steel pipes, and the number is set to be plural. The both ends welded connection of interim horizontal support 21 are on the terminal surface that the mounting panel 32 of adjacent stand 1 set up relatively, and the both ends welded connection of interim vertical support is on the mounting panel 32 that stand 1 lateral wall is located different level respectively. Two adjacent columns 1 and a temporary horizontal support 21 and a temporary vertical diagonal support 22 which are welded and connected between the two adjacent columns 1 form a triangle, and the stability of the triangle is utilized to further improve the support stabilizing effect of the temporary horizontal support 21 on the columns 1 and the bearing capacity of the columns 1.
The welded connection mode has the advantages of firmness, reliability, safety, good economy and high efficiency, the temporary horizontal rigid support and the mounting plate 32 and the temporary vertical diagonal support 22 and the mounting plate 32 are connected through the welded connection mode, and the stability of the fixed connection between the temporary horizontal support 21 and the mounting plate 32 is improved.
The reinforcement support 2 is arranged in the 1-6-layer construction process, the reinforcement support 2 is fixedly connected with two adjacent upright posts 1, the stability between the upright posts 1 is improved, the slender ratio of the upright posts 1 is reduced, after the 1-6-layer construction is completed, the 7-12-layer construction can be performed without waiting for the completion of the B1-layer construction, the technical intermittent stopping point after the 6-layer construction is completed is eliminated, and the construction process of a building is accelerated. The method does not need labor force for returning and secondary entering, does not need reconfiguration of turnover frame materials, is favorable for environmental protection, and reduces construction cost.
Referring to fig. 1 and 2, in the fourth step, the construction of the layer B1 and below is performed, the pouring construction of the basement bottom plate is performed, and meanwhile the construction of the layer x+1-Y is performed, wherein Y is the maximum floor building layer number which can be borne by the first support structure formed by the B0 conversion layer, the reinforcing support 2, the upright post and the cast-in-place pile, and Y is equal to or greater than U, and in the embodiment of the application, Y is 12. In the 7-12 layer construction process, 1-3 layers and 5-12 layers of secondary structure construction can be simultaneously carried out, so that the construction efficiency of the building is improved, and the construction time of the building is shortened.
And fifthly, after the vertical construction of the basement bottom plate is completed, finishing the reverse construction, and carrying out the floor construction of the Y-Z layer in the forward direction, wherein Z is the maximum floor construction layer number which can be borne by a second support structure consisting of the B0 conversion layer, the reinforcing support 2, the upright post 1, the filling pile, the B1 layer and the bottom plate, and Z is 28 in the embodiment of the application. And carrying out floor construction of 13-28 floors in the forward direction, and finishing capping. After the 7-12 layers of construction are completed, the underground construction is not completed yet, and the construction of the bottom plate is still required to be completed.
After the construction of the building body is completed, the reinforcement support 2 can be selectively removed or the reinforcement support 2 can be reserved according to actual use requirements.
The implementation principle of the construction method for optimizing the intermittent stopping point of the synchronous reverse construction technology in the embodiment of the application is as follows: when the reverse construction method is used for building construction, firstly, one column and one pile construction are carried out; secondly, constructing a B0 conversion layer; thirdly, constructing 1-6 layers, and constructing a reinforcing support 2 between the upright posts; fourthly, synchronously constructing the layer B1 and below, the bottom plate and the 7-12 layers; fifthly, the basement is vertically built back to finish 13-28 layers of construction.
Through in the work progress of third step, build the reinforcement support 2 in step, the reinforcement support 2 carries out fixed connection to two adjacent stand 1, improves the stability between the stand 1, reduces the slenderness ratio of stand 1 for stand 1 has stronger bearing and supporting ability, after 1-6 layers construction is accomplished, need not to wait for B1 layer construction or construction to accomplish and can carry out the technology intermittent type stopping point after 6 layers construction completion of 7-12 layers construction, accelerate the construction progress of building. The method does not need labor force for returning and secondary entering, does not need reconfiguration of turnover frame materials, is favorable for environmental protection, and reduces construction cost.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. A construction method for optimizing intermittent stopping points of synchronous reverse construction technology is characterized in that: the method comprises the following steps:
s1, constructing a column by column, forming a plurality of column pile holes at construction positions, constructing a cast-in-place pile at the bottom of the column pile holes, and then arranging a column (1) above the cast-in-place pile;
s2, constructing a B0 conversion layer, excavating first-layer earthwork to the depth of the B0 conversion layer, and constructing the B0 conversion layer;
s3, constructing an upward 1-X layer, wherein X is the maximum floor building layer number which can be borne by the B0 conversion layer; digging downwards until the upright posts (1) are partially exposed, and building a reinforcing support (2) between the upright posts (1);
s4, constructing an upward X+1-Y layer, wherein Y is the maximum floor building layer number which can be borne by a first support structure consisting of a B0 conversion layer, an upright post (1), a reinforcing support (2) and a filling pile, and is more than or equal to U; constructing a layer B1, constructing a bottom plate below the layer B1, constructing the bottom plate downwards along the layer B1 until the construction is completed, and pouring the bottom plate;
s5, after the vertical construction of the basement is completed, floor construction of a Y-Z layer is carried out in the forward direction, wherein Z is the maximum floor number of building layers which can be borne by a second support structure consisting of a B0 conversion layer, a stand column (1), a reinforcing support (2), a filling pile, a B1 layer and a bottom plate;
the reinforcement support (2) comprises a temporary horizontal support (21) and a temporary vertical diagonal support (22), wherein both ends of the temporary horizontal support (21) and both ends of the temporary vertical diagonal support (22) are fixedly connected between two adjacent upright posts (1);
be provided with a plurality of mount pads (3) on stand (1), arbitrary mount pad (3) are in including fixed mounting a plurality of connecting plates (31) of stand (1) outer wall, fixed mounting are in connecting plate (31) are kept away from same mounting panel (32) and fixed connection of stand (1) outer wall with a plurality of reinforcing plates (33) between mounting panel (32), the lateral wall of reinforcing plate (33) still with connecting plate (31) fixed connection, the both ends of interim horizontal support (21) and the both ends of interim vertical bracing (22) are all fixed connection in the difference on mount pad (3).
2. The construction method for optimizing intermittent stopping points of synchronous reverse construction technology according to claim 1, wherein the construction method is characterized by comprising the following steps: the temporary horizontal support (21) is arranged at the position of the switching layer-4 m to-5 m of the main building B0.
3. The construction method for optimizing intermittent stopping points of synchronous reverse construction technology according to claim 2, wherein the construction method is characterized by comprising the following steps: and two ends of the temporary horizontal support (21) are welded with different mounting plates (32).
4. The construction method for optimizing intermittent stopping points of synchronous reverse construction technology according to claim 3, wherein the construction method is characterized by comprising the following steps: the vertical distance between the mounting seats (3) arranged on the same upright post (1) is at least 200mm.
5. The construction method for optimizing intermittent stopping points of synchronous reverse construction technology according to claim 1, wherein the construction method is characterized by comprising the following steps: s3 further comprises secondary structure construction of the Nth layer, wherein N is more than or equal to 1 and less than or equal to X.
6. The construction method for optimizing intermittent stopping points of synchronous reverse construction technology according to claim 1, wherein the construction method is characterized by comprising the following steps: s4, secondary structure construction of the 1-Y layer is further included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001556.3A CN115324106B (en) | 2022-08-19 | 2022-08-19 | Construction method for optimizing intermittent stopping point of synchronous reverse construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001556.3A CN115324106B (en) | 2022-08-19 | 2022-08-19 | Construction method for optimizing intermittent stopping point of synchronous reverse construction technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115324106A CN115324106A (en) | 2022-11-11 |
| CN115324106B true CN115324106B (en) | 2023-08-18 |
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