Fabricated building outer-formwork-free and outer-frame-free construction method

Abstract

The invention relates to an outer-mold-free and outer-frame-free construction method for a fabricated building. The method comprises the steps that firstly, a cast-in-place outer wall disassembly-free outer mold PCF and a cast-in-place outer beam disassembly-free outer mold PCLF are hoisted; step 2, mounting a PCF / PCLF position fence of the disassembly-free outer mold; thirdly, hoisting of vertical components such as prefabricated columns and prefabricated outer walls is completed; fourthly, vertical steel bar binding and inner side formwork erecting are completed, and a supporting frame is erected; fifthly, the prefabricated boundary beam components and the fence stand columns are connected through bolts, and after fences are installed, the prefabricated boundary beam components and the fence stand columns are synchronously hoisted one by one; sixthly, after the laminated slab is hoisted, reinforcing steel bar binding and pipeline and concrete construction are conducted; and 7, the first step is repeated according to the principle of one disassembly and one assembly, and construction of the whole standard layer is completed. The external-formwork-free and external-frame-free construction method is high in construction efficiency, convenient to construct, less in wet operation on site and easy to install, and is used for achieving a safe and efficient construction technology of a fabricated frame shear wall structure building.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a method for constructing an assembled building without external formwork or external frame. Background Art

[0002] With the development of the construction industry, prefabricated projects have become a mainstream trend, and their related structural systems are widely used in current urban construction, especially in residential and apartment buildings. With the improvement of technology, higher requirements are also put forward for the quality, safety and efficiency of prefabricated construction. At present, the construction site is still constructed with the traditional construction method of first constructing the external frame and then installing the components, and then to the steel bars, formwork, and concrete. The construction period is long, the efficiency is low, the construction cost is high, and at the same time, it is limited by the level of construction personnel and managers, and its performance in safety, beauty and construction quality is uneven. Summary of the invention

[0003] The present invention aims to overcome the defects of the prior art and provide a method for constructing an assembled building without external formwork or external frame, so as to solve the problems of long construction period, low efficiency and high construction cost in traditional construction methods.

[0004] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: A method for constructing an assembled building without external formwork or external frame, characterized in that it comprises the following steps: Step 1: hoisting the cast-in-place external wall without dismantling the external formwork and the cast-in-place external beam without dismantling the external formwork; Step 2: Install the enclosure for the position of the external mold without removal; Step 3: Complete the hoisting of vertical components such as prefabricated columns and prefabricated exterior walls; Step 4: Complete the vertical reinforcement binding, inner formwork and set up the support frame; Step 5: Connect the prefabricated edge beam components and the enclosure columns with bolts and install the enclosures one by one synchronously; Step 6: After hoisting the composite slab, carry out steel bar binding, pipeline and concrete construction; Step 7: Repeat the first step according to the principle of dismantling one and installing one to complete the construction of the entire standard floor.

[0005] The method for constructing an assembled building without external formwork and without external frame is characterized in that before construction, external formwork components that do not require dismantling are added to the gable, core tube cast-in-place wall and cast-in-place beam positions, and external formwork structures that do not require dismantling of external side columns and external beams are also required.

[0006] The method for constructing an assembled building without external formwork and external frame is characterized in that the cast-in-place wall and cast-in-place beam external formwork components without dismantling, the external formwork structures without dismantling and the external beam external formwork structures without dismantling are manufactured in a factory prefabricated manner.

[0007] The method for constructing an assembled building without external formwork and without external frame is characterized in that: before construction, it is also necessary to design a finalized enclosure, and the enclosure connection form is considered according to the structure of prefabricated components, which is mainly divided into three types of enclosure forms: prefabricated side beam enclosure base, cast-in-place wall prefabricated enclosure base without external formwork removal, and cast-in-place beam prefabricated enclosure base without external formwork removal.

[0008] The method for constructing an assembled building without external formwork or external frame is characterized in that: in step 2, the enclosure columns are connected by socket connection.

[0009] The beneficial effects of the present invention are as follows: It can be seen from the above technical solutions that the present application provides a method for constructing an assembled building without external formwork or external frame, and the principle of no external formwork or external frame is achieved by adding an external formwork-free structure, a fence installation method, and a component hoisting process to the prefabricated components of the outer enclosure of the assembled frame shear wall structure, and high-quality assembled structure construction is achieved under the premise of ensuring safety. The purpose of the present invention is to solve the problems of high material and labor consumption, low construction efficiency, and uncontrollable construction quality brought about in the construction process of the assembled frame shear wall structure. At the same time, the outer enclosure structure of the present invention is prefabricated in the component factory and directly hoisted on site, and the fence is standardized in the factory and hoisted synchronously with the components, and can be used in a turnover manner later, which is safe, efficient, fast, and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a cast-in-place wall structure that does not require dismantling of the outer formwork.

[0011] Figure 2 It is a cast-in-place beam structure that does not require removal of external formwork.

[0012] Figure 3 It is a prefabricated external column without external formwork structure.

[0013] Figure 4 It is a prefabricated outer edge beam structure without external formwork.

[0014] Figure 5 It is the base of the prefabricated edge beam enclosure.

[0015] Figure 6 Prefabricate the PCF enclosure base for the cast-in-place wall without dismantling the external formwork.

[0016] Figure 7 Prefabricate the PCLF enclosure base for the cast-in-place beam without removing the external formwork.

[0017] Figure 8 This is a schematic diagram of step one. DETAILED DESCRIPTION

[0018] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application. A method for constructing an assembled building without external formwork or external frame. Construction preparation work: 1. External mold-free structural design of external protective components like Figure 1-4 As shown: Add non-dismantling external formwork components to the gable, core tube cast-in-place wall and cast-in-place beam positions, and also require non-dismantling external formwork structures for outer side columns and non-dismantling external formwork structures for outer side beams.

[0019] The cast-in-place wall and cast-in-place beam non-dismantling external formwork components, non-dismantling external formwork structures and external edge beam non-dismantling external formwork structures are manufactured by factory prefabrication.

[0020] 2. Design of fixed enclosure: like Figure 5-7 As shown: According to the prefabricated component structure, the enclosure connection form is mainly divided into three types of enclosures: prefabricated side beam enclosure base, cast-in-place wall prefabricated non-dismantling external formwork PCF enclosure base, cast-in-place beam prefabricated non-dismantling external formwork PCLF enclosure base.

[0021] Specific construction steps: Step 1: Hoist the cast-in-place external wall non-removal external formwork PCF and cast-in-place external beam non-removal external formwork PCLF; Figure 8 As shown; Step 2: Install the PCF / PCLF position enclosure without disassembly of the external formwork; the enclosure columns adopt socket connection.

[0022] Step 3: Complete the hoisting of vertical components such as prefabricated columns and prefabricated exterior walls; Step 4: Complete the vertical reinforcement binding, inner formwork and set up the support frame; Step 5: Connect the prefabricated edge beam components and the enclosure columns with bolts and install the enclosures one by one synchronously; Step 6: After hoisting the composite slab, carry out steel bar binding, pipeline and concrete construction; Step 7: Repeat the first step according to the principle of dismantling one and installing one to complete the construction of the entire standard floor.

[0023] The purpose of the present invention is to provide a method for constructing an assembled frame shear wall structure without external formwork and external frame, which has the advantages of high efficiency, simple installation method, factory prefabrication to ensure the quality of its facade, and excellent construction effect achieved through structural measures. It is factory prefabricated and assembled on site, which is safe and efficient, and has good molding quality. Compared with traditional construction methods, it saves manpower and material resources for external frame and external formwork construction, and also simplifies construction technology and methods. It is a manifestation of the industrialized development of assembled buildings, and it is highly compatible with assembled commercial housing, apartments, and resettlement houses, and has a positive impact on construction period and installation quality compared with traditional processes.

[0024] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for constructing an assembled building without external formwork or external frame. Features It includes the following steps: Step 1: hoisting the cast-in-place external wall without dismantling the external formwork and the cast-in-place external beam without dismantling the external formwork; Step 2: Install the enclosure for the position of the external mold without removal; Step 3: Complete the hoisting of vertical components such as prefabricated columns and prefabricated exterior walls; Step 4: Complete the vertical reinforcement binding, inner formwork and set up the support frame; Step 5: Connect the prefabricated edge beam components and the enclosure columns with bolts and install the enclosures one by one synchronously; Step 6: After hoisting the composite slab, carry out steel bar binding, pipeline and concrete construction; Step 7: Repeat the first step according to the principle of dismantling one and installing one to complete the construction of the entire standard floor.

2. A method for constructing an assembled building without external formwork or external frame according to claim 1, Features: Before construction, non-dismantling external formwork components are added to the gables, core tube cast-in-place walls and cast-in-place beams. Non-dismantling external formwork structures for external columns and non-dismantling external formwork structures for external beams are also required.

3. A method for constructing an assembled building without external formwork or external frame according to claim 2, Features: The cast-in-place wall and cast-in-place beam non-dismantling external formwork components, non-dismantling external formwork structures and external edge beam non-dismantling external formwork structures are manufactured by factory prefabrication.

4. A method for constructing an assembled building without external formwork or external frame according to claim 1, Features: Before construction, it is also necessary to design a finalized enclosure and consider the enclosure connection form according to the structure of prefabricated components. There are mainly three types of enclosures: prefabricated side beam enclosure base, cast-in-place wall prefabricated non-dismantling external formwork enclosure base, and cast-in-place beam prefabricated non-dismantling external formwork enclosure base.

5. According to claim 1, a method for constructing an assembled building without external formwork or external frame, Features: In step 2, the enclosure columns are connected using socket and spigot connections.

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