CN111119445A - Construction method for building thin leveling layer based on prestress - Google Patents
Construction method for building thin leveling layer based on prestress Download PDFInfo
- Publication number
- CN111119445A CN111119445A CN202010004257.XA CN202010004257A CN111119445A CN 111119445 A CN111119445 A CN 111119445A CN 202010004257 A CN202010004257 A CN 202010004257A CN 111119445 A CN111119445 A CN 111119445A
- Authority
- CN
- China
- Prior art keywords
- prestress
- leveling layer
- prestressed
- thin
- layer
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of building thin leveling layer based on prestress, preparing corresponding prestress rib according to the length and width of the thin leveling layer, drilling anchoring hole on the outside of the ground of the leveling layer, inclining the anchoring hole 5-10 degrees outwards, driving anchoring steel nail into the anchoring hole and fixing, fixing one end of the prestress rib on the anchoring steel nail, stretching the other end to the preset prestress through prestress stretching device, fixing on the anchoring steel nail at the opposite end, repeating the steps of laying prestress rib on the whole construction ground longitudinally and transversely, utilizing precast cement piece to support the prestress rib upwards at the cross point of the transverse or longitudinal stretching prestress rib after laying the prestress rib, pouring concrete on the prestress rib for leveling, utilizing cutting device to cut the building thin leveling layer after the concrete reaches the designed strength, the construction method can solve the problem of cracking of the thin leveling layer after construction.
Description
Technical Field
The invention relates to the technical field of construction of building ground by utilizing prestress, in particular to a construction method of a building thin leveling layer based on the prestress.
Background
In the technical field of construction, underground garages, factory floors or garages are all cement floors, and generally comprise a following structural layer and a leveling thin layer on the structural layer, wherein the thickness of the leveling thin layer is about 5-15cm, the structural layer is directly constructed by utilizing concrete on the ground without excessive leveling, and the leveling thin layer is required to be leveled when the leveling thin layer is found. In the prior art, the construction method of the leveling layer is to directly pour concrete on a structural layer for construction and leveling, and the construction method has the problem that the cracking of the leveling layer cannot be prevented.
The pre-tensioning method prestress construction method or the post-tensioning method prestress construction method has wide application as solving the problem of cracking of a cement ground or enhancing bearing pressure, but the traditional prestress construction method requires that the thickness of a construction layer is at least more than 15cm in the application process, and in the construction process, fixed pedestals are arranged on the left side or the front side and the rear side of a construction plane to stretch prestressed reinforcements, so that the existing prestress construction method cannot meet the construction method of an underground warehouse, a factory ground or a garage.
Disclosure of Invention
The invention aims to provide a construction method capable of meeting the requirements of thin layers of an underground warehouse, a factory floor or a garage and the like aiming at the problem that the existing prestress construction method cannot meet the prestress construction of the underground warehouse, the factory floor or the garage.
In order to achieve the purpose, the invention adopts the technical scheme that: a construction method for a building thin-layer leveling layer based on prestress, wherein the thickness of the thin-layer leveling layer is 5-15cm, comprises the following steps:
(1) preparing corresponding prestressed tendons according to the length and the width of the thin leveling layer;
(2) drilling anchoring holes with the depth of 6-8cm around the outer side of the ground of the leveling layer by a drilling device, wherein the anchoring holes incline outwards by 5-10 degrees;
(3) driving an anchoring steel nail into the anchoring hole and fixing;
(4) fixing one end of a prestressed tendon on the anchoring steel nail, tensioning the other end of the prestressed tendon to a preset prestress through a prestress tensioning device, fixing the prestressed tendon on the anchoring steel nail at the opposite end, and repeatedly paving the prestressed tendon on the whole construction ground in the longitudinal direction and the transverse direction;
(5) pouring a concrete leveling layer on the prestressed reinforcing steel;
(6) and cutting the building thin leveling layer by using the cutting device after the concrete member reaches the design strength.
Furthermore, the prestressed tendons are arranged at one half of the thickness of the thin-layer leveling layer.
As a preferred scheme of the invention, in the actual construction process, because some construction areas are larger, in order to prevent the prestressed tendons from sagging, the prestressed tendons are upwards supported at the cross points of the transverse prestressed tendons and the longitudinal prestressed tendons by using precast cement parts after the prestressed tendons are tensioned and laid.
The beneficial technical effects of the invention are as follows: in the technical scheme of the invention, the prestressed tendon which can be generated is fixed on the anchoring steel nail by adopting a pretensioning method, and the other end of the prestressed tendon is fixed on the anchoring steel nail at the opposite end after being tensioned to the preset prestress by the prestressed tensioning device, so that the problem that the construction can be carried out only by fixing the pedestal in the traditional pretensioning method or post-tensioning method construction method is solved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention in implementation or in the prior art, the drawings used in the implementation or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of the construction method of the present invention.
In the figure, 1 concrete, 2 prestressed tendons, 3 anchoring steel nails, 4 structural layers and 5 prestressed thin-layer leveling layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a construction method for building thin leveling layer based on prestress, the thickness of the thin leveling layer is 5cm, includes the following steps:
(1) preparing corresponding prestressed tendons according to the length and the width of the thin leveling layer;
(2) drilling anchoring holes with the depth of 6-8cm on the periphery of the outer side of the ground of the structural layer 4 through a drilling device, wherein the anchoring holes incline outwards by 5 degrees;
(3) driving an anchoring steel nail 3 into the anchoring hole and fixing;
(4) fixing one end of a prestressed tendon 2 on an anchoring steel nail, tensioning the other end of the prestressed tendon to a preset prestress through a prestress tensioning device, fixing the prestressed tendon on the anchoring steel nail at the opposite end, and repeatedly paving the prestressed tendon on the whole construction ground in the longitudinal direction and the transverse direction;
(5) after all the prestressed tendons are tensioned and laid, the prestressed tendons are upwards supported at the cross points of the transverse prestressed tendons and the longitudinal prestressed tendons by using the precast cement pieces 5, and the function of the prestressed tendons is to ensure that the prestressed tendons are arranged at one half of the thickness of the thin leveling layer;
(6) pouring a concrete leveling layer 1 on the prestressed tendons;
(7) and cutting the building thin leveling layer by using the cutting device after the concrete leveling layer reaches the design strength.
Example 2
As shown in fig. 1, a construction method for building thin leveling layer based on prestress, the thickness of the thin leveling layer is 15cm, includes the following steps:
(1) preparing corresponding prestressed tendons according to the length and the width of the thin leveling layer;
(2) drilling anchoring holes with the depth of 6-8cm around the outer side of the ground of the leveling layer 4 by a drilling device, and inclining the anchoring holes by 10 degrees outwards;
(3) driving an anchoring steel nail 3 into the anchoring hole and fixing;
(4) fixing one end of a prestressed tendon 2 on an anchoring steel nail, tensioning the other end of the prestressed tendon to a preset prestress through a prestress tensioning device, fixing the prestressed tendon on the anchoring steel nail at the opposite end, and repeatedly paving the prestressed tendon on the whole construction ground in the longitudinal direction and the transverse direction;
(5) after all the prestressed tendons are tensioned and laid, the prestressed tendons are upwards supported at the cross points of the transverse prestressed tendons and the longitudinal prestressed tendons by using the precast cement pieces 5, and the function of the prestressed tendons is to ensure that the prestressed tendons are arranged at one half of the thickness of the thin leveling layer;
(6) pouring a concrete leveling layer 1 on the prestressed tendons;
(7) and cutting the building thin leveling layer by using the cutting device after the concrete leveling layer reaches the design strength.
The thin leveling layer constructed by the construction method can better avoid the cracking problem.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (3)
1. A construction method for a building thin-layer leveling layer based on prestress is characterized in that the thickness of the thin-layer leveling layer is 5-15cm, and the construction method comprises the following steps:
(1) preparing corresponding prestressed tendons according to the length and the width of the thin leveling layer;
(2) drilling anchoring holes with the depth of 6-8cm around the outer side of the ground of the structural layer by a drilling device, wherein the anchoring holes incline to the outer side by 5-10 degrees;
(3) driving an anchoring steel nail into the anchoring hole and fixing;
(4) fixing one end of a prestressed tendon on the anchoring steel nail, tensioning the other end of the prestressed tendon to a preset prestress through a prestress tensioning device, fixing the prestressed tendon on the anchoring steel nail at the opposite end, and repeatedly paving the prestressed tendon on the whole construction ground in the longitudinal direction and the transverse direction;
(5) pouring a concrete member on the prestressed reinforcement;
(6) and cutting the building thin leveling layer by using the cutting device after the concrete leveling layer reaches the design strength.
2. The construction method of building thin-layer leveling layer based on prestress according to claim 1, wherein the prestressed tendon is arranged at a half of the thickness of the thin-layer leveling layer.
3. The construction method of building thin leveling layer based on prestress according to claim 1, wherein the prestressed tendons are upwards supported by using precast cement members at the crossing points of the transverse prestressed tendons and the longitudinal prestressed tendons after the prestressed tendons are tensioned and laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004257.XA CN111119445A (en) | 2020-01-03 | 2020-01-03 | Construction method for building thin leveling layer based on prestress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004257.XA CN111119445A (en) | 2020-01-03 | 2020-01-03 | Construction method for building thin leveling layer based on prestress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119445A true CN111119445A (en) | 2020-05-08 |
Family
ID=70507650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010004257.XA Pending CN111119445A (en) | 2020-01-03 | 2020-01-03 | Construction method for building thin leveling layer based on prestress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111119445A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738062A (en) * | 2021-09-13 | 2021-12-03 | 中铁十八局集团有限公司 | Whole seamless terrace of prestressing force |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073928A (en) * | 1984-09-05 | 1985-04-26 | 出原 隆男 | Construction of slab made of reinforced concrete |
| CN103147562A (en) * | 2012-12-02 | 2013-06-12 | 上海馨来建筑装饰设计有限公司 | Construction method of ground cement mortar leveling |
| CN110005169A (en) * | 2019-04-12 | 2019-07-12 | 中国启源工程设计研究院有限公司 | A kind of cracking resistance process with stressed seamless terrace |
-
2020
- 2020-01-03 CN CN202010004257.XA patent/CN111119445A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073928A (en) * | 1984-09-05 | 1985-04-26 | 出原 隆男 | Construction of slab made of reinforced concrete |
| CN103147562A (en) * | 2012-12-02 | 2013-06-12 | 上海馨来建筑装饰设计有限公司 | Construction method of ground cement mortar leveling |
| CN110005169A (en) * | 2019-04-12 | 2019-07-12 | 中国启源工程设计研究院有限公司 | A kind of cracking resistance process with stressed seamless terrace |
Non-Patent Citations (1)
| Title |
|---|
| 党光献: "大型停车楼金刚砂耐磨地坪质量缺陷及控制要点", 《建筑技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738062A (en) * | 2021-09-13 | 2021-12-03 | 中铁十八局集团有限公司 | Whole seamless terrace of prestressing force |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105735325B (en) | A kind of intensive permanent support assembled basement structure system and construction method | |
| US20140223851A1 (en) | Prefabricated reinforced concrete wall panel and installation method | |
| US9932737B1 (en) | Prefabricated masonry lintels | |
| US10544583B2 (en) | Prefabricated masonry walls | |
| CN102979221A (en) | Shear wall structure configured with crossed slant internal prestress and construction method of shear wall structure | |
| KR101021147B1 (en) | Prefabricated pc culvert | |
| US20030233798A1 (en) | Post-tensioned, below-grade concrete foundation system | |
| CN103233537B (en) | Heavy load overlapping overhead terrace and construction method | |
| CN111119445A (en) | Construction method for building thin leveling layer based on prestress | |
| CN101963002B (en) | Masonry structure and method for enhancing collapse resistance and integrity under strong earthquake | |
| CN113417300A (en) | Slope support system and construction method thereof | |
| CN112281568A (en) | Prefabricated ultrahigh-performance concrete light pavement structure and construction method thereof | |
| NZ284401A (en) | Brick wall with integral bottom bond beam and supported on spaced piles | |
| KR100746593B1 (en) | Method for Supporting Temporary Retaining Wall Using Support-line and Pre-loading Strut | |
| CN104675138A (en) | Method and structure for reinforcing modified sound-insulation and noise-reduction slab balcony | |
| JP7016106B2 (en) | Lightweight embankment structure and how to build a lightweight embankment | |
| CN207405630U (en) | A kind of novel small-sized box drain reinforcement system | |
| CN111058368A (en) | Corrugated steel reinforcing arch utilizing high-strength grouting material and building method thereof | |
| KR101004221B1 (en) | One Way Waffle Slab System Continued by Post-tensioning and Post-tensioning method of the same | |
| Ganz et al. | Stressing masonry's future | |
| JP6698309B2 (en) | Fence reinforcement structure and reinforcement members | |
| CN219930630U (en) | Ecological sleeper step structure | |
| Lindsay | Structural steel elements within stabilised rammed earth walling | |
| KR101278151B1 (en) | Prestressed precast segment rahmen-bridge | |
| RU2052018C1 (en) | Method for erecting pile base and/or pile foundation, method for erecting and/or reconstruction of a building of inhabitable, industrial or social application, method for erecting and/or reconstruction of a construction of transport or industrial application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200508 |
|
| RJ01 | Rejection of invention patent application after publication |