Construction method for reinforced concrete arched roof of grain store
A reinforced concrete and construction method technology, applied in the direction of construction, building structure, and construction material processing, etc., can solve the problems of unfavorable quality control, high cost of machinery use, low construction efficiency, etc., achieve reasonable and compact construction procedures, reduce mechanical Use cost, timely effect of on-site material supply
A reinforced concrete and construction method technology, applied in the direction of construction, building structure, and construction material processing, etc., can solve the problems of unfavorable quality control, high cost of machinery use, low construction efficiency, etc., achieve reasonable and compact construction procedures, reduce mechanical Use cost, timely effect of on-site material supply
CN102251667BInactive Publication Date: 2013-04-17CHINA METALLURGICAL CONSTR ENG GRP
Image
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] A construction method for a reinforced concrete vaulted roof of a granary, the method comprising the following steps:
[0030] 1) Pre-embed steel plates on the ring beams of the arched roof to be installed; at the same time make partitions.
[0031] 2) Set up a scaffold in the longitudinal middle of the ring beam, make a pedestal for the prefabricated prestressed arch plate in the air, and set reserved holes for installing jacks at both ends of the pedestal. Generally, two reserved holes for installing jacks are respectively arranged at both ends of the pedestal.
[0032] 3) Lay the lower chord prestressed steel bars, and prestress the lower chord prestressed steel bars. When stretching the lower chord prestressed steel bars, the prestressed steel bars are stretched in the order from the middle to both sides and from bott...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a construction method for a reinforced concrete arched roof of a grain store. The method comprises the following steps of: erecting a scaffold at the middle longitudinal part of a ring beam, and making a pedestal; paving lower chord prestressed steel bars, and performing prestressed tensioning; erecting a lower chord bottom die and a side die, installing a partition plate,and installing an upper chord arched bottom die and an upper chord arched side die at the top of the partition plate; paving upper chord steel bars; pouring concrete; stretching the prestressed steelbars when the strength of the concrete reaches over 85 percent, welding diagonal braces, and obtaining an arched plate after the diagonal braces are welded; and translating the arched plate, and welding and fixing the arched plate with an embedded steel plate. Because the construction mode of overhead prefabrication and integral translation is adopted, a large machine for hoisting is avoided, theconstruction progress is quickened, the safety risk is reduced, the cost is saved, the temporary site is reduced, and the construction efficiency is improved.
Description
technical field [0001] The invention relates to a reinforced concrete construction method, in particular to a construction method for a reinforced concrete arched roof of a granary. Background technique [0002] The existing granaries for storing grain and oil mainly adopt multiple scattered flat warehouses built in a centralized manner, and each loose flat warehouse is a brick-concrete structure, the roof truss system is a reinforced concrete arched roof, and the upper chord is a quadratic parabolic equation. The prestressed reinforced concrete arch slab is a multi-functional roof truss system integrating load bearing, waterproof, heat insulation, etc. The upper and lower chords are connected as a whole with partitions, and there are 4 embedded parts under each arch plate, which are welded together with the ring beam. The concrete strength grade of the arch slab and partition is C35, the lower chord prestressed reinforcement adopts CRB800 grade, and the upper chord and par...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
17 Apr 2013
Publication
CN102251667B
- IPC
- E04G21/00; E04G21/12
- Inventors
- 杨广辉; 陈崇彬