Construction method of prefabricated assembled box-type non-dismantling formwork dense rib composite floor slabs
A technology of prefabricated assembly and laminated floors, which is applied to floors, building components, buildings, etc., can solve the problems of difficult pipeline arrangement, poor sound insulation effect, and long construction period, so as to reduce the amount of formwork, reduce the construction period, and improve the construction efficiency. efficiency effect
Inactive Publication Date: 2020-01-17
杭州昂创科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to propose a prefabricated assembled box type without dismantling for problems such as large amount of formwork, long construction period, poor sound insulation effect, and difficult pipeline arrangement existing in the construction of existing building floors, main girders, and secondary girders. Construction method of molded dense rib laminated floor slab
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[0042] In order to deepen the understanding of the present invention, reference will be made to Figure 1 to Figure 9 , the embodiments of the present invention are described in detail, the following embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following embodiments.
[0043] In this embodiment, the cross-section of the main beam 1 is 300mm×700mm, the cross-section size of the secondary beam 2 is 250mm×550mm, the thickness of the cast-in-place slab 3 is 150mm, the concrete strength grade is C30, the longitudinal reinforcement is HRB335, and the stirrup is HPB300; The height of the box-type formwork-free 3 is 550mm, and the length and width are 4m×3m. Three partition boards 35 are installed inside the box-type formwork-free 3. The width of the support plate 10 is 1.5m, and the length is the same as that of the main bea...
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The invention relates to a construction method of prefabricated assembled box-type non-dismantling formwork dense rib composite floor slabs. The construction method comprises the steps of preparing abox-type non-dismantling formwork, erecting a lower support of a main beam, mounting the box-type non-dismantling formwork, binding and laying steel bars, mounting pipelines, pouring concrete, constructing upper layer structural columns and floor slabs, dismantling the support and the like. The box-type non-dismantling formwork is provided with lap joint grooves in the two sides in lap joint withthe main beam respectively, and lap joint ribs are arranged in the lap joint grooves and bound with the steel bars of the main beam. The box-type non-dismantling formwork is provided with tenons or grooves in the two sides and the lower end connected with a secondary beam in the length direction of the secondary beam respectively, a partition plate is arranged in the center of the box-type non-dismantling formwork, and an access hole is formed in the bottom of the box-type non-dismantling formwork. The adjacent box-type non-dismantling formwork composite floor slabs form main beam and secondary beam pouring formworks in the directions of the main beam and the secondary beam respectively, the tops of box-type plates can serve as floor slab pouring formworks, the formwork consumption is greatly reduced, and the construction period is greatly shortened. Empty bins provide mounting space for the pipelines and related equipment, and the arrangement difficulty of the pipelines is reduced.
Description
technical field [0001] The invention relates to the construction of floor slabs, main girders and secondary girders in the field of construction, in particular to a construction method for a prefabricated assembled box-type non-dismantling dense-rib laminated floor slab. Background technique [0002] During the construction of building floors and primary and secondary beams, the construction method of first supporting formwork and then pouring is generally adopted. The following problems exist in the construction process: (1) The large amount of floor formwork and the complex formwork support and removal process require a lot of investment Manpower and material resources are used to support and dismantle the formwork; (2) The entire construction process is long, the formwork support and dismantling period is long, and the subsequent decoration of the suspended ceiling is relatively cumbersome. For projects with tight construction schedules, the construction progress needs to ...
Claims
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IPC IPC(8): E04B5/36E04B5/48
CPCE04B5/326E04B5/36E04B5/48
Inventor 朱凯陈小林
Owner 杭州昂创科技有限公司