Ultra-low clear height formwork support system

Abstract

The utility model relates to the technical field of building construction, and particularly provides an ultra-low clear height formwork support system which comprises a bearing adjusting assembly, a longitudinal filler strip and a formwork assembly. The bearing adjusting assembly comprises at least two supporting units which are arranged in the longitudinal direction of the beam at intervals. The longitudinal filler strips are flatly laid on the tops of the at least two supporting units; the formwork assembly is arranged on the tops of the longitudinal filler strips in a supported mode. Each supporting unit comprises a bearing foundation, an adjustable jack and a supporting assembly which are sequentially arranged from bottom to top. The adjustable jack convenient to stretch out and draw back is arranged to serve as a component part, the formwork support is installed through jacking of the adjustable jack during installation, and after pouring and maintenance of a concrete beam plate are completed, the height of the adjustable jack is reduced, the formwork support and a supporting steel beam are conveniently withdrawn, and then a formwork assembly is dismantled; and the bearing capacity and the overall stability of the formwork support are improved. And the material turnover utilization rate and the economic benefit are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction technology, and particularly relates to a super-low net height formwork support system. BACKGROUND

[0002] In the structural design process, in order to ensure the ventilation and moisture-proof function of the house building, a raised floor is often arranged below the first floor or the main structural floor, the layer height of the raised floor is usually between 1.8m to 2m, and the main role is to ensure the ventilation and moisture-proof function of the house building. Since the raised floor is often below the first floor or the main structural floor, it needs to have a certain load bearing capacity, therefore, in the structural design, there are certain requirements for the beam width and beam height of the raised floor, and the beam height is generally designed to be 1m to 1.2m, so as to ensure that the bending and shearing strength of the raised floor structure meets the requirements. However, this also leads to the fact that the net height under the beam of the raised floor is further compressed, and the net height is about in the range of 0.6m to 1m, under the action of the super-low net height and the heavy load beam, not only is it required to set the support more densely, but also it is difficult to meet the basic module requirement of the customized length of the disc-type steel pipe scaffold, and although the steel pipe scaffold after cutting can temporarily meet the setting requirement, the small size steel pipe scaffold after cutting is difficult to be used again, which is not only not conducive to the economy of the scaffold construction, but also brings difficulties to the calculation of the structural safety.

[0003] At present, the formwork support setting under the beam of the raised floor with super-low net height is usually in the traditional beam support setting mode, but due to the large upper beam section and large load, the formwork support setting generally adopts the high formwork setting mode to meet the load requirement, so that the spacing and arrangement of the formwork support are relatively dense, which not only compresses the operation space of the construction workers, but also brings inconvenience to the installation and later removal of the formwork support. Therefore, it can be said that in the field of formwork support setting construction under the beam with super-low net height, there is a technical dilemma that the length of the scaffold does not meet the basic module requirement due to the insufficient construction operation space and the difficulty in installation and removal of the formwork support. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model provides a super-low net height formwork support system, which solves the problems of difficult formwork support setting and removal under the beam with super-low net height.

[0005] The utility model provides a super-low net height formwork support system, which comprises a bearing adjusting component, a longitudinal pad strip and a formwork component, the bearing adjusting component comprises at least two support units which are arranged at intervals along the longitudinal direction of the beam, the longitudinal pad strip is laid on the top of the at least two support units, the formwork component is arranged on the top of the longitudinal pad strip, and each support unit comprises a bearing base, an adjustable jack and a support component which are arranged in sequence from bottom to top.

[0006] Further, the formwork assembly comprises a formwork and a pair of draw bolts; the formwork comprises a bottom formwork and side formworks arranged on both sides of the bottom formwork; the side formworks are connected through the pair of draw bolts.

[0007] Further, the pair of draw bolts comprises a screw rod penetrating through the side formworks and a nut threadedly matched with the screw rod.

[0008] Further, the support assembly comprises a support steel beam.

[0009] Further, the length direction of the support steel beam is perpendicular to the length direction of the longitudinal cushion strip.

[0010] Further, the longitudinal cushion strip is provided in plurality and the plurality of longitudinal cushion strips are arranged in the transverse direction of the beam.

[0011] Further, the bearing foundation comprises a bearing column.

[0012] The beneficial effects of the utility model are:

[0013] (1) the convenient installation and removal of the formwork support frame under the construction condition of ultra-low net height are realized; the adjustable jack with convenient extension is arranged as a component part; the installation of the formwork support frame is completed through the jacking of the adjustable jack during installation; after the concrete beam and slab are poured and cured, the height of the adjustable jack is lowered, the formwork support frame and the support steel beam are removed conveniently, and then the formwork assembly is removed;

[0014] (2) the bearing capacity and overall stability of the formwork support frame are improved; the adjustable jack is arranged below the support assembly, the support assembly is tightly pressed by the adjustable jack, the prestress in the upward direction is provided in advance, the downward impact force during the pouring of concrete and the self weight of the concrete after pouring are resisted, the force transmission mechanism is improved, and the bearing capacity and overall stability of the formwork support frame system under the construction condition of ultra-low net height are effectively ensured;

[0015] (3) the material turnover utilization rate and economic benefits are improved; the adjustable jack is introduced into the field of formwork support frame construction, the length module requirement of the support frame under the construction condition of small space is solved, the density of the formwork support frame is appropriately reduced and adjusted under the premise of ensuring the bearing capacity and overall stability of the formwork support frame, sufficient operation space is left for the construction workers, the construction period is reduced to a certain extent, and the material turnover utilization efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the formwork support frame system under the construction condition of ultra-low net height.

[0017] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0018] Figure 3 for Figure 1 A structural diagram of the adjustable jack and the supporting column.

[0019] In the diagram: 1-Bearing column; 2-Adjustable jack; 201-Base; 202-Adjuster; 203-Tie rod; 204-Bolt; 205-Nut; 206-Top support; 3-Supporting steel beam; 4-Longitudinal pad; 5-Formwork; 501-Bottom formwork of beam; 502-Side formwork of beam; 6-Tie bolt. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-3 The ultra-low headroom formwork system shown includes a load-bearing column 1, an adjustable jack 2, a supporting steel beam 3, longitudinal pads 4, a formwork 5, and tie rods 6.

[0022] In the above setup, the supporting columns 1 and adjustable jacks 2 serve as the supporting foundation, bearing the upper load and transferring it to the ground. The supporting steel beam 3 is erected on the adjustable jacks 2, and the longitudinal pads 4 and the bottom formwork 501 of the beam are erected on the supporting steel beam 3, forming a complete and systematic force transmission mechanism. The tie rods 6 serve to fix the side formwork 502 of the beam and improve stability. This formwork support system utilizes the telescopic characteristics of the adjustable columns 1, improving the efficiency of formwork installation and dismantling in spaces with limited clearance, avoiding the problems of dense support setup and limited operating space in traditional methods.

[0023] The supporting column 1 rests directly on the ground, forming the supporting foundation of this formwork system together with the adjustable jack 2. The adjustable jack 2 is placed on the supporting column 1, and its extension length is adjusted to facilitate the installation and dismantling of the formwork. The adjustable jack 2 consists of a base 201, an adjuster 202, a tie rod 203, a bolt 204, a nut 205, and a top support 206, forming a telescopic supporting component. The base 201 is in direct contact with the supporting column 1 for easy force transmission. By turning the adjuster 202 forward, the nuts 205 on both sides rotate inward, driving the tie rod 203 to increase the angle between it and the bolt 204. This causes the tie rods 203 to push the top support 206 upward, lifting and pressing it against the upper supporting steel beam 3. After the concrete beam has been poured and cured, the adjuster 202 is turned in reverse to lower the top support 206 for easy removal of the formwork.

[0024] The telescopic adjustable length of the adjustable jack 2 is designed to be at least 50 mm to ensure that the formwork support frame has sufficient operation space during the installation of the jacking and the removal of the force.

[0025] The support steel beam 3 and the longitudinal cushion strip 4 serve as the main support and force transmission members to improve the force transmission system. The support steel beam 3 is centrally arranged on the adjustable jack 2 and is supported by the underlying bearing foundation. The longitudinal cushion strip 4 is vertically arranged on the support steel beam 3 and is parallel to the bottom formwork 501 of the beam. During the installation, the support steel beam 3 is pushed against the longitudinal cushion strip 4 and closely contacts the bottom formwork 501 of the beam by the upward extension of the underlying adjustable jack 2. During the removal, the support steel beam 3 and the longitudinal cushion strip 4 are removed by the downward retraction of the adjustable jack 2. The bottom formwork 501 of the beam is arranged on the longitudinal cushion strip 4 to transmit the dead load of the concrete pouring.

[0026] The support steel beam 3 is preferably in the form of double channel steel to increase the contact area with the upper longitudinal cushion strip 4 and the lower support member and improve the overall stability of the formwork support frame. The longitudinal cushion strip 4 is preferably made of steel strip which is not easy to deform. The longitudinal cushion strip 4 can be integrated with the support steel beam 3 to make the installation and removal of the formwork support frame more convenient.

[0027] The tension screw 6 serves as a fixing member to limit the deformation of the side formwork of the beam under the action of the force and maintain the overall stability of the formwork support frame system. The tension screw 6 is arranged on the side formwork 502 of the beam to fix the spatial position of the side formwork 502 and prevent it from bursting and expanding under the action of the concrete pouring impact and hydration heat expansion.

[0028] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and refinements without departing from the principle of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A formwork support system with ultra-low headroom, characterized in that, It includes a load-bearing adjustment component, longitudinal pads, and a template component; the load-bearing adjustment component includes at least two support units spaced apart along the longitudinal direction of the beam; the longitudinal pads are laid flat on top of the at least two support units; the template component is supported on top of the longitudinal pads; each support unit includes a load-bearing foundation, an adjustable jack, and a support component arranged sequentially from bottom to top; The template assembly includes a template and tie bolts; the template includes a bottom mold and side molds disposed on both sides of the bottom mold; the side molds are connected by the tie bolts; The tie bolt includes a threaded rod that passes through the side mold and a nut that is threadedly engaged with the threaded rod; The support assembly includes a support steel beam; the length direction of the support steel beam is perpendicular to the length direction of the longitudinal pad.

2. The ultra-low headroom formwork system according to claim 1, characterized in that, There are multiple longitudinal pads, and the multiple longitudinal pads are spaced apart along the transverse direction of the beam.

3. The ultra-low headroom formwork system according to claim 1, characterized in that, There are multiple longitudinal pads, and the load-bearing foundation includes load-bearing columns.

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