1) pre-tension and post-tension construction 先后张预应力施工1. Key points of construction technology are emphasized in this text,such as sorting out of beam characteristic parameter,desigh and operating technology of pedestal and formwork,concrete pouring,pre-tension and post-tension construction,etc...
PURPOSE: A two-way multi-slab formed to have two-way resistance using pre-tension and post-tension to vertical stress is provided to improve workability and construction performance by reducing manufacturing costs and structural members.;CONSTITUTION: A two-way multi-slab formed to have two-way ...
The meaning of PRESTRESS is to introduce internal stresses into (something, such as a structural beam) to counteract the stresses that will result from applied load (as in incorporating cables under tension in concrete).
5) lag-tension 滞后张拉 1. Subsequently,concepts of lag-tension and two-times tension,stretch-torque constructing technique,further the technological process of combination utilization of three of them,are presented in order to alleviate or a. 基于理论分析与试验研究,针对竖向预应力分段张拉、现行的...
摘要: Examines the response mechanisms of α[sub 2]-adrenergic receptors in ovine cerebral arteries. Importance of &alpha-adrenergic system in cerebrovascular reactivity; Measurement of isometric tension; Effects of antagonists on norepinephrine dose-response relations....
“right” in monogamous relationships because they felt a tension between trusting their partners, and wanting to communicate this to them, while wanting personal peace of mind from taking care of their own health. This was a novel finding, as previous research has predominantly focused on the ...
Preliminary findings on increased muscle tension and tenderness, and recurrent abdominal pain in children. A clinical study Recurrent abdominal pain of "non-organic origin" is a common pediatric problem. In most instances it is related to psychological factors. The origin of the... Alfvén,Gosta ...
sample had two or more criteria for the diagnosis for the metabolic syndrome; two or more criteria were found in 32.1, 46.1 (43.7% in Level 1 and 49.95% in Level 2 PreHTN) and 54.6 of disease-free healthy subjects with normotension, PreHTN and unmedicated hypertension, respec- tively....
A pre-stressed annular sealant and method of creating a durable seal in a well bore annulus which is based on hydraulic cement that is designed to be easily pumped and placed into a casing-wellbore annulus, to set into a hardened mass, and to then undergo post-set crystal growth and phase...
metropolitan Shanghai area for at least 3 years prior to pregnancy; no report of assisted reproduction (spontane- ous conception), pre-existing diabetes mellitus or gestational diabetes, chronic or pregnancy-associated hyper- tension, thyroid disorders, HIV infection or AIDS, and illicit drug use. ...