RU2035568C1 - Method for erection of cast-in-situ multilayer structures of wall or column type - Google Patents

Abstract

FIELD: construction. SUBSTANCE: after transfer of exterior shields through next step, through interior forms of box-like or circular cross-section are installed between shields for formation of cast-in-situ insert to height of concreted layer. Interior forms are filled with insulating light cellular or filling concrete and installed to form bearing layers of preset thickness from structural concrete between exterior shields and walls of internal forms and to form, between inserts, transverse interior partitions of preset thickness from sturctural material. In this case, interior forms are withdrawn directly after its filling up to concrete hardening, and arranged between inserts are horizontal flat nets for lateral and longitudinal reinforcing of structure. In case of necessity, vertical reinforcement is installed between the exterior shields and walls of interior forms. EFFECT: higher efficiency. 2 cl, 2 dwg

Description

 The invention relates to the field of construction and can be used for the construction of monolithic multilayer structures such as walls or columns.

It is known to erect monolithic walls by alternately moving the inner formwork and outer panels attached to the inner formwork with the formation of gaps to fill the outer layers [1]
However, the known solution does not allow erecting walls with monolithic inserts and reinforcing the bearing layers in the longitudinal direction, it is metal-intensive and requires considerable efforts to remove the core former for stripping.

 The formwork for erecting walls is also known as a set of external shields connected by screeds, between which there is an internal removable formwork for the formation of cavities, which allow to obtain a wall with better heat-insulating properties [2] designs.

Known formwork for the construction of multilayer monolithic walls, which includes alternately rearranging external panels and internal formwork for the formation of a cavity filled with heat-insulating materials after concreting, hardening of concrete and formwork [3]
A disadvantage of the known solution is the vertical arrangement of the cavity to be filled to the entire height of the structure, which reduces the bearing capacity of the wall and its heat-insulating properties when the filling material is wetted during operation, especially due to sorption, as well as the difficulty or inability to reinforce the wall structure in the longitudinal direction.

 The objective of the invention is to increase the bearing capacity of the wall structure and its heat-shielding properties, as well as reducing the material consumption of formwork, the complexity of formwork and speeding up the construction process.

 This task is achieved due to the fact that after moving the outer panels to the next step between them, a through inner formwork of a box, ring or any desired profile is installed in the plan to form a monolithic insert to the height of the concrete layer, and the inner formwork is installed with the formation between its walls and the outer shields of bearing layers of a given thickness from structural concrete with the formation of transverse internal partitions of a given thickness from the same concrete between adjacent inserts E, the inner shuttering is removed immediately after its filling to a height of concreting layer before hardening of concrete filling, is placed between the inserts and the horizontally disposed reinforcing grid, flat frameworks or connection, the transverse rods are multiples step inserts and placed in the internal transverse partitions. Vertical reinforcing mesh, flat frames or rods are placed in the bearing layers between the outer panels and the inner formwork, if such reinforcement is necessary to increase the bearing capacity of the wall being constructed.

 This task is achieved by simplifying the design of the inner formwork and its implementation to a given part of the height of the structure being erected, as well as by immediately stripping the monolithic insert with moving it to the next cell. The heat-insulating properties of the wall are improved due to the discrete arrangement of monolithic inserts along the height and length of the wall, and the inserts can be staggered both in thickness and height of the wall, which improves the protection of the filled inserts from sorption moisture.

 In FIG. 1 shows a construction diagram of a monolithic multilayer structure, a plan view; in FIG. 2 same side view.

 The method of construction of monolithic multilayer structures is as follows. The outer formwork panels 1 are installed for the length of the grab, and the inner formwork 2 is positioned and fixed between them, the height of which is equal to the height of the concrete layer. The formwork 2 is made in the form of a through box (without bottom) of a box, ring or any other section in plan, closed or horseshoe-shaped. Between the outer shields 1 establish transverse partitions 3, and, if necessary, transverse connections with a step that is a multiple of the step of the inserts.

 The cavity formed between the outer shields 1 and the walls of the inner formwork 2, between the partitions 3 and the walls of the inner formwork 2, is filled with structural concrete, after hardening of which the supporting layer of the wall 4 and the supporting internal partitions 5. are formed. If necessary, the supporting layers 4 and partitions 5 can be reinforced with vertical nets, flat frames or rods 6.

 The inner formwork is filled with insulating lightweight cellular or filling concrete. Immediately after filling the inner formwork 2, it is removed and rearranged from the first cell to the second. Between the inner formwork 2, a supporting internal partition is formed, since the transverse partition 3 of the cell 1 is removed when concreting the cell.

 After removing the formwork 2 in the concrete wall, a monolithic insert is formed from an insulating lightweight cellular or filling concrete. Between the inserts to increase the bearing capacity of the wall are installed flat reinforcing mesh 7.

 The inner formwork 2 is installed between the outer panels 1 and the end walls so that the bearing layers and partitions are obtained of a given thickness.

 According to the height of the wall structure being erected, the outer panels 1 can be installed with a half-step offset when concreting the next level of concreting, and thus the wall surface imitates masonry from wall blocks.

Claims (2)

 1. METHOD FOR ESTABLISHING MONOLITHIC MULTI-LAYERED STRUCTURES OF TYPE OF WALLS OR COLUMNS, including alternating rearrangement of external panels and internal formwork for the formation of cavities filled with heat-insulating material, concreting and formwork, characterized in that after the external panels are moved to the next box, they open an outer box through them or annular section to form a monolithic insert to the height of the concrete layer, and the inner formwork is installed with the formation of inter its walls and outer shields carrier layers of a predetermined thickness and structural concrete to form a transverse internal partition of predetermined thickness between the structural concrete monolithic inserts, the inner shuttering is removed immediately after its filling to a height of concreting layer before hardening the concrete fill.  2. The method according to claim 1, characterized in that between the inserts place horizontal flat reinforcing mesh.

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