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标准规格的普通混凝土空心砌块其力学性能可满足多层建筑结构方面的要求,但保温性能远不能达到最近公布的《居住建筑热工与采暖节能设计标准》(以下简称建筑节能标准)要求。因此,如何解决承重混凝土空心砌块墙体保温问题已成为采暖地区能否推广应用承重混凝土空心砌块的技术关键。本文就此问题进行探讨,希望通过同行们的共同努力,尽快解决。 一、外墙传热系数限值 建筑节能标准中规定不同地区采暖居住建筑各部分围护结构传热系数限值,今摘录若干城市有关
The mechanical performance of ordinary concrete hollow block of standard specifications can meet the requirements of multi-story building structure, but the thermal insulation performance can not reach the recently announced “Residential Building Thermal Engineering and Heating Energy-saving Design Standards” (hereinafter referred to as building energy-saving standards) requirements. Therefore, how to solve the problem of the thermal insulation of the weight-bearing concrete hollow block wall has become the key to whether the heating area can promote the use of load-bearing concrete hollow block. This article discusses this issue and hopes to resolve it as soon as possible through the joint efforts of its peers. First, the limits of the external wall heat transfer coefficient Building energy standards in different areas of residential buildings in various parts of the building envelope heat transfer coefficient limits, extracted today related to a number of cities