CN110565862A - Novel balsawood-concrete floor system and construction process thereof - Google Patents

Abstract

The invention provides a new type of balsa wood-concrete floor, which is characterized in that: there are two or more wooden beams; the middle position of the top surface of the wooden beams along the grain direction is provided with pin grooves; The lower part of the steel plate is embedded in the pin groove, and is fixed to the wooden beam with the adhesive layer filled in the pin groove; there are steel bars passing through the corresponding row of holes outside the pin groove of each steel plate; the concrete slab is located above the wooden beam, Corresponding to the position of the concrete slab, the steel plates and steel bars protruding from the pin slots are poured in the concrete slab. The invention also provides the construction technology of the above structure. The invention provides a connection node structure of a wooden beam and a shear wall with simple structure, convenient installation, low manufacturing cost and high node strength. The invention is a floor covering which fully utilizes the advantages of the two components of wooden beams and concrete slabs, has strong operability and improves connection strength and rigidity.

Description

A new light wood-concrete floor and its construction technology

technical field

The invention belongs to the technical field of building engineering floors, and in particular relates to a novel balsa wood-concrete floor and its construction technology.

Background technique

The floor is an important part of the building structure, which plays the role of transmitting vertical and horizontal loads and horizontal connection and support.

Wood is an environmentally friendly green material, which can effectively reduce the energy consumption of buildings during the use phase. As a structural material, it partially replaces concrete, masonry and steel, reduces adverse impacts on water, air and energy and reduces carbon emissions from the industrial chain, thereby bringing good environmental benefits. In wooden structures, wooden beams have strong tensile and bending properties along the grain direction. In addition, the reinforced concrete structure has the advantages of wide application, excellent durability and fire resistance, and good integrity. Among them, the concrete slab has the advantages of easy construction, good integrity and high comfort.

Contents of the invention

The present invention provides a new type of balsa wood-concrete floor, the purpose of which is to solve the shortcomings of the prior art, to provide a floor that fully utilizes the advantages of the two components of wooden beams and concrete slabs, which has strong operability and improves the connection strength and stiffness.

The invention also provides a novel construction technology of light wood-concrete floor.

The technical solution adopted by the present invention to solve its technical problems is:

A new type of balsa wood-concrete floor, with two or more wooden beams; a pin groove is opened in the middle of the top surface of the wooden beam along the direction of the grain; the lower part of the steel plate with a row of holes is embedded in the pin groove, And the adhesive layer filled in the pin groove is fixed to the wooden beam; there are steel bars passing through the corresponding row of holes outside the pin groove of each steel plate; the concrete slab is located above the wooden beam, and the extension corresponding to the position of the concrete slab The steel plates and steel bars for the pin slots are cast in concrete slabs.

Further, the depth of the pin groove of the wooden beam is half of the height of the steel plate with rows of holes, and the width of the pin groove is greater than the thickness of the steel plate.

Further, the diameter of the hole row of the steel plate is larger than the diameter of the steel bar.

A construction technique for a novel light wood-concrete floor, comprising the following steps:

Step 1: Determine the size of the wooden beam, and open a pin groove in the middle of the top along the direction of the grain of the wooden beam; insert a steel plate with a row of holes into the pin groove of the wooden beam, and consolidate it with an adhesive;

Step 2: Support the concrete slab base form on the placed wooden beams, and then lay steel bars, wherein the steel bars perpendicular to the steel plate with rows of holes must pass through the holes, and then bind the bars;

The third step: Concrete pouring, after sufficient curing time, the concrete reaches a certain strength, and the formwork is removed.

Beneficial effect:

1. The wooden beam and the steel plate with rows of holes are connected by pin and groove with adhesive, so that the two can be better fixed and the connection is more stable.

2. The steel bar passes through the steel plate with rows of holes, thereby effectively improving the connection strength and stiffness between the concrete slab and the steel plate.

3. The connection method has strong operability, can significantly improve the integrity of the floor, and at the same time improve the safety performance of the entire house.

4. Give full play to the advantages of the two structures, complement each other and work together.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a perspective view of the structure of the present invention;

Fig. 2 is a schematic diagram of wooden beams and steel plates of the present invention.

Detailed ways

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other embodiments can also be obtained according to these drawings on the premise of not paying creative work.

As shown in Figure 1 and Figure 2:

The invention provides a novel light wood-concrete floor. It provides a new idea and method for the connection of wooden beams and concrete slabs.

There are two or more wooden beams 1, and there are three wooden beams 1 in this embodiment.

Wooden beam 1 is provided with pin groove 11 along the top surface of grain direction, and pin groove 11 is positioned at the middle position of the top surface of wooden beam 1, and the depth of pin groove 11 is half of the height of the steel plate 2 that row hole 21 is arranged, and pin The width of the groove 11 is slightly greater than the thickness of the steel plate 2 . The diameter of the row of holes 21 of the steel plate 2 is slightly larger than the diameter of the steel bar 3 .

The lower part of the steel plate 2 is inserted into the pin groove 11, and is fixedly connected with the wooden beam 1 with the adhesive layer filled in the pin groove 11.

Each steel plate 2 is parallel, and has a corresponding row of holes 21 where steel bars 3 pass through each steel plate 2 and are located outside the pin groove 11 .

The concrete slab 4 is located above the wooden beam 1 , and the steel plates 2 and steel bars 3 protruding from the pin groove 11 corresponding to the position of the concrete slab 4 are poured in the concrete slab 4 .

The present invention includes a steel plate 2 with a row of holes 21, a wooden beam 1, an adhesive, a concrete slab 4, and the like. Wherein, the steel plate 2 with the row of holes 21 is used as a shear key for connecting the wooden beam 1 and the concrete slab 4 . The steel plate 2 and the wooden beam 1 are consolidated mainly through an adhesive, and the steel plate 2 and the concrete slab 4 are connected to the concrete through a steel bar 3 .

Construction process:

The first step: determine the size of the wooden beam 1, and set up a pin groove 11 in the middle of the top along the grain direction of the wooden beam 1, so that the steel plate 2 with the row of holes 21 has a sufficient depth of embedding (the depth of the pin groove 11 is taken as the depth of the row of holes 21 half of the height of steel plate 2). A steel plate 2 with a row of holes 21 is inserted into the wooden beam and consolidated with an adhesive;

Step 2: support the bottom mold of the concrete slab on the placed wooden beam 1, and lay reinforcement 3 again, wherein the reinforcement 4 perpendicular to the steel plate 1 with the row of holes 21 will pass through the row of holes 21, and then bind the reinforcement 3;

Step 3: Concrete 4 pouring, after sufficient curing time, the concrete reaches a certain strength, and the formwork is removed.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. A new type of balsa wood-concrete floor, characterized in that: there are two or more wooden beams; the middle position of the top surface of the wooden beams along the direction of the grain is provided with a pin groove; a steel plate with a row of holes The lower part of the pin groove is embedded in the pin groove, and is fixed with the wooden beam with the adhesive layer filled in the pin groove; there are steel bars passing through the corresponding row of holes outside the pin groove of each steel plate; the concrete slab is located above the wooden beam, and The steel plates and steel bars protruding from the pin slot corresponding to the position of the concrete slab are poured in the concrete slab. 2. A kind of novel balsa wood-concrete floor as claimed in claim 1, is characterized in that: the depth of the pin groove of wooden beam is half of the height of the steel plate with row of holes, and the pin groove width is greater than the thickness of steel plate. 3. A novel balsa wood-concrete floor as claimed in claim 1, characterized in that: the diameter of the holes in the steel plate is greater than the diameter of the steel bar. 4. A construction technique for a novel light wood-concrete floor, characterized in that: Step 1: Determine the size of the wooden beam, and open a pin groove in the middle of the top along the direction of the grain of the wooden beam; insert a steel plate with a row of holes into the pin groove of the wooden beam, and consolidate it with an adhesive; Step 2: Support the concrete slab base form on the placed wooden beams, and then lay steel bars, wherein the steel bars perpendicular to the steel plate with rows of holes must pass through the holes, and then bind the bars; The third step: Concrete pouring, after sufficient curing time, the concrete reaches a certain strength, and the formwork is removed.